./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_JEN_test2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4a390ef5 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_JEN_test2-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 816e37c4bcf3aac0429d508c13e4e6eeab848e29c3869a32879e05a2b79a73a3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 18:35:20,872 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 18:35:20,937 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-24 18:35:20,942 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 18:35:20,943 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 18:35:20,971 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 18:35:20,972 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 18:35:20,972 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 18:35:20,974 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 18:35:20,975 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 18:35:20,975 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 18:35:20,975 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 18:35:20,977 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 18:35:20,977 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 18:35:20,977 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 18:35:20,980 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 18:35:20,980 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 18:35:20,980 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 18:35:20,980 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 18:35:20,981 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 18:35:20,981 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 18:35:20,982 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 18:35:20,982 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-24 18:35:20,984 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 18:35:20,984 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 18:35:20,985 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 18:35:20,985 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 18:35:20,985 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 18:35:20,985 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 18:35:20,985 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 18:35:20,986 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 18:35:20,986 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 18:35:20,986 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 18:35:20,986 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 18:35:20,987 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 18:35:20,987 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 18:35:20,987 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 18:35:20,987 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 18:35:20,988 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 18:35:20,988 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 18:35:20,988 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 18:35:20,988 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 18:35:20,989 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 816e37c4bcf3aac0429d508c13e4e6eeab848e29c3869a32879e05a2b79a73a3 [2024-10-24 18:35:21,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 18:35:21,260 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 18:35:21,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 18:35:21,264 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 18:35:21,265 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 18:35:21,266 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-2.i [2024-10-24 18:35:22,653 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 18:35:22,986 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 18:35:22,987 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-2.i [2024-10-24 18:35:23,016 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8d3cc661/975b7e07f9f74547b0b5f2762cf2a543/FLAGed9a7f216 [2024-10-24 18:35:23,032 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8d3cc661/975b7e07f9f74547b0b5f2762cf2a543 [2024-10-24 18:35:23,035 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 18:35:23,038 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 18:35:23,039 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 18:35:23,039 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 18:35:23,044 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 18:35:23,045 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:35:23" (1/1) ... [2024-10-24 18:35:23,046 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59e72989 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:35:23, skipping insertion in model container [2024-10-24 18:35:23,048 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:35:23" (1/1) ... [2024-10-24 18:35:23,114 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 18:35:23,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 18:35:23,690 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2024-10-24 18:35:23,691 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@538e7853 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:35:23, skipping insertion in model container [2024-10-24 18:35:23,692 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 18:35:23,692 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-10-24 18:35:23,694 INFO L158 Benchmark]: Toolchain (without parser) took 655.65ms. Allocated memory is still 161.5MB. Free memory was 129.8MB in the beginning and 107.5MB in the end (delta: 22.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-24 18:35:23,695 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 117.4MB. Free memory is still 90.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 18:35:23,696 INFO L158 Benchmark]: CACSL2BoogieTranslator took 653.14ms. Allocated memory is still 161.5MB. Free memory was 129.8MB in the beginning and 107.5MB in the end (delta: 22.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-24 18:35:23,697 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 117.4MB. Free memory is still 90.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 653.14ms. Allocated memory is still 161.5MB. Free memory was 129.8MB in the beginning and 107.5MB in the end (delta: 22.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 815]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 816e37c4bcf3aac0429d508c13e4e6eeab848e29c3869a32879e05a2b79a73a3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 18:35:25,701 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 18:35:25,787 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-10-24 18:35:25,792 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 18:35:25,793 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 18:35:25,828 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 18:35:25,829 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 18:35:25,829 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 18:35:25,829 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 18:35:25,830 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 18:35:25,830 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 18:35:25,830 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 18:35:25,832 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 18:35:25,833 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 18:35:25,834 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 18:35:25,835 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 18:35:25,836 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 18:35:25,836 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 18:35:25,839 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 18:35:25,839 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 18:35:25,839 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 18:35:25,840 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 18:35:25,840 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-24 18:35:25,840 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 18:35:25,841 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 18:35:25,841 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-24 18:35:25,841 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 18:35:25,841 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-24 18:35:25,842 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 18:35:25,842 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 18:35:25,842 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 18:35:25,842 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 18:35:25,843 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 18:35:25,843 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 18:35:25,844 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 18:35:25,844 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 18:35:25,844 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 18:35:25,845 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 18:35:25,845 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-24 18:35:25,846 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-24 18:35:25,846 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 18:35:25,846 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 18:35:25,846 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 18:35:25,847 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 18:35:25,847 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-24 18:35:25,847 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 816e37c4bcf3aac0429d508c13e4e6eeab848e29c3869a32879e05a2b79a73a3 [2024-10-24 18:35:26,202 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 18:35:26,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 18:35:26,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 18:35:26,228 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 18:35:26,229 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 18:35:26,231 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-2.i [2024-10-24 18:35:27,712 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 18:35:28,045 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 18:35:28,046 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-2.i [2024-10-24 18:35:28,072 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcf50da0b/71b827bb31834ffa84077da153f858c3/FLAG6a711f517 [2024-10-24 18:35:28,279 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcf50da0b/71b827bb31834ffa84077da153f858c3 [2024-10-24 18:35:28,281 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 18:35:28,282 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 18:35:28,284 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 18:35:28,285 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 18:35:28,289 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 18:35:28,289 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:35:28" (1/1) ... [2024-10-24 18:35:28,290 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bd3d033 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:35:28, skipping insertion in model container [2024-10-24 18:35:28,290 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:35:28" (1/1) ... [2024-10-24 18:35:28,349 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 18:35:28,938 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 18:35:28,970 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-10-24 18:35:28,981 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 18:35:29,044 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 18:35:29,049 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 18:35:29,128 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 18:35:29,193 INFO L204 MainTranslator]: Completed translation [2024-10-24 18:35:29,194 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:35:29 WrapperNode [2024-10-24 18:35:29,194 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 18:35:29,195 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 18:35:29,195 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 18:35:29,195 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 18:35:29,202 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:35:29" (1/1) ... [2024-10-24 18:35:29,239 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:35:29" (1/1) ... [2024-10-24 18:35:29,289 INFO L138 Inliner]: procedures = 211, calls = 280, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1082 [2024-10-24 18:35:29,289 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 18:35:29,290 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 18:35:29,290 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 18:35:29,290 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 18:35:29,302 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:35:29" (1/1) ... [2024-10-24 18:35:29,303 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:35:29" (1/1) ... [2024-10-24 18:35:29,324 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:35:29" (1/1) ... [2024-10-24 18:35:29,406 INFO L175 MemorySlicer]: Split 256 memory accesses to 3 slices as follows [2, 34, 220]. 86 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 54 writes are split as follows [0, 4, 50]. [2024-10-24 18:35:29,407 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:35:29" (1/1) ... [2024-10-24 18:35:29,407 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:35:29" (1/1) ... [2024-10-24 18:35:29,469 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:35:29" (1/1) ... [2024-10-24 18:35:29,483 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:35:29" (1/1) ... [2024-10-24 18:35:29,494 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:35:29" (1/1) ... [2024-10-24 18:35:29,502 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:35:29" (1/1) ... [2024-10-24 18:35:29,517 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 18:35:29,519 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 18:35:29,519 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 18:35:29,519 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 18:35:29,520 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:35:29" (1/1) ... [2024-10-24 18:35:29,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 18:35:29,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 18:35:29,556 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 18:35:29,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 18:35:29,608 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-10-24 18:35:29,608 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-10-24 18:35:29,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-10-24 18:35:29,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-10-24 18:35:29,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-10-24 18:35:29,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-24 18:35:29,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-24 18:35:29,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-24 18:35:29,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-10-24 18:35:29,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-10-24 18:35:29,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-10-24 18:35:29,610 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-10-24 18:35:29,610 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-10-24 18:35:29,611 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-10-24 18:35:29,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-24 18:35:29,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-24 18:35:29,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-24 18:35:29,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-24 18:35:29,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 18:35:29,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-24 18:35:29,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-24 18:35:29,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-24 18:35:29,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-24 18:35:29,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-24 18:35:29,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-24 18:35:29,613 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-24 18:35:29,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-24 18:35:29,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-24 18:35:29,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 18:35:29,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-24 18:35:29,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-24 18:35:29,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-24 18:35:29,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 18:35:29,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 18:35:29,836 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 18:35:29,839 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 18:35:29,863 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-24 18:35:29,907 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-24 18:35:29,933 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-24 18:35:33,477 INFO L? ?]: Removed 1101 outVars from TransFormulas that were not future-live. [2024-10-24 18:35:33,478 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 18:35:33,676 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 18:35:33,680 INFO L314 CfgBuilder]: Removed 63 assume(true) statements. [2024-10-24 18:35:33,681 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:35:33 BoogieIcfgContainer [2024-10-24 18:35:33,681 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 18:35:33,683 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 18:35:33,683 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 18:35:33,687 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 18:35:33,688 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:35:28" (1/3) ... [2024-10-24 18:35:33,688 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f2cdb1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:35:33, skipping insertion in model container [2024-10-24 18:35:33,688 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:35:29" (2/3) ... [2024-10-24 18:35:33,689 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f2cdb1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:35:33, skipping insertion in model container [2024-10-24 18:35:33,689 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:35:33" (3/3) ... [2024-10-24 18:35:33,691 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test2-2.i [2024-10-24 18:35:33,707 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 18:35:33,708 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 529 error locations. [2024-10-24 18:35:33,782 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 18:35:33,789 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;@529bb4ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 18:35:33,790 INFO L334 AbstractCegarLoop]: Starting to check reachability of 529 error locations. [2024-10-24 18:35:33,796 INFO L276 IsEmpty]: Start isEmpty. Operand has 978 states, 438 states have (on average 2.5) internal successors, (1095), 971 states have internal predecessors, (1095), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-24 18:35:33,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-10-24 18:35:33,803 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:35:33,804 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-10-24 18:35:33,804 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-24 18:35:33,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:35:33,810 INFO L85 PathProgramCache]: Analyzing trace with hash 55623, now seen corresponding path program 1 times [2024-10-24 18:35:33,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:35:33,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [140242550] [2024-10-24 18:35:33,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:35:33,821 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:35:33,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:35:33,825 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:35:33,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-24 18:35:34,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:35:34,028 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 18:35:34,034 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:35:34,070 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-24 18:35:34,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:35:34,086 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:35:34,086 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:35:34,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [140242550] [2024-10-24 18:35:34,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [140242550] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:35:34,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:35:34,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 18:35:34,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490810157] [2024-10-24 18:35:34,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:35:34,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 18:35:34,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:35:34,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 18:35:34,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:35:34,143 INFO L87 Difference]: Start difference. First operand has 978 states, 438 states have (on average 2.5) internal successors, (1095), 971 states have internal predecessors, (1095), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:35:35,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:35:35,860 INFO L93 Difference]: Finished difference Result 1128 states and 1205 transitions. [2024-10-24 18:35:35,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 18:35:35,863 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2024-10-24 18:35:35,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:35:35,880 INFO L225 Difference]: With dead ends: 1128 [2024-10-24 18:35:35,880 INFO L226 Difference]: Without dead ends: 1127 [2024-10-24 18:35:35,882 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:35:35,885 INFO L432 NwaCegarLoop]: 543 mSDtfsCounter, 891 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 899 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-24 18:35:35,885 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [899 Valid, 671 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-24 18:35:35,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2024-10-24 18:35:35,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 963. [2024-10-24 18:35:35,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 963 states, 441 states have (on average 2.2970521541950113) internal successors, (1013), 956 states have internal predecessors, (1013), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-24 18:35:35,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1031 transitions. [2024-10-24 18:35:35,985 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1031 transitions. Word has length 2 [2024-10-24 18:35:35,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:35:35,985 INFO L471 AbstractCegarLoop]: Abstraction has 963 states and 1031 transitions. [2024-10-24 18:35:35,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:35:35,986 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1031 transitions. [2024-10-24 18:35:35,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-10-24 18:35:35,986 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:35:35,986 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-10-24 18:35:35,991 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 (2)] Forceful destruction successful, exit code 0 [2024-10-24 18:35:36,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:35:36,189 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-24 18:35:36,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:35:36,190 INFO L85 PathProgramCache]: Analyzing trace with hash 55624, now seen corresponding path program 1 times [2024-10-24 18:35:36,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:35:36,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [941318130] [2024-10-24 18:35:36,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:35:36,191 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:35:36,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:35:36,194 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:35:36,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-24 18:35:36,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:35:36,294 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 18:35:36,296 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:35:36,303 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-24 18:35:36,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:35:36,316 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:35:36,316 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:35:36,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [941318130] [2024-10-24 18:35:36,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [941318130] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:35:36,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:35:36,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 18:35:36,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227079484] [2024-10-24 18:35:36,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:35:36,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 18:35:36,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:35:36,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 18:35:36,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:35:36,321 INFO L87 Difference]: Start difference. First operand 963 states and 1031 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:35:38,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:35:38,280 INFO L93 Difference]: Finished difference Result 1350 states and 1461 transitions. [2024-10-24 18:35:38,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 18:35:38,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2024-10-24 18:35:38,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:35:38,285 INFO L225 Difference]: With dead ends: 1350 [2024-10-24 18:35:38,285 INFO L226 Difference]: Without dead ends: 1350 [2024-10-24 18:35:38,285 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:35:38,286 INFO L432 NwaCegarLoop]: 763 mSDtfsCounter, 419 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 1261 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-24 18:35:38,287 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 1261 Invalid, 786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-24 18:35:38,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1350 states. [2024-10-24 18:35:38,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1350 to 1079. [2024-10-24 18:35:38,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 553 states have (on average 2.236889692585895) internal successors, (1237), 1072 states have internal predecessors, (1237), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-24 18:35:38,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1265 transitions. [2024-10-24 18:35:38,313 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1265 transitions. Word has length 2 [2024-10-24 18:35:38,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:35:38,313 INFO L471 AbstractCegarLoop]: Abstraction has 1079 states and 1265 transitions. [2024-10-24 18:35:38,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:35:38,314 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1265 transitions. [2024-10-24 18:35:38,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-24 18:35:38,314 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:35:38,314 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-24 18:35:38,318 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 [2024-10-24 18:35:38,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:35:38,517 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-24 18:35:38,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:35:38,518 INFO L85 PathProgramCache]: Analyzing trace with hash -170130095, now seen corresponding path program 1 times [2024-10-24 18:35:38,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:35:38,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [576064877] [2024-10-24 18:35:38,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:35:38,519 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:35:38,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:35:38,523 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:35:38,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-10-24 18:35:38,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:35:38,659 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 18:35:38,661 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:35:38,670 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-24 18:35:38,677 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-24 18:35:38,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 18:35:38,739 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-10-24 18:35:38,760 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-24 18:35:38,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-10-24 18:35:38,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:35:38,786 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:35:38,786 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:35:38,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [576064877] [2024-10-24 18:35:38,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [576064877] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:35:38,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:35:38,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 18:35:38,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757044994] [2024-10-24 18:35:38,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:35:38,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 18:35:38,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:35:38,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 18:35:38,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 18:35:38,788 INFO L87 Difference]: Start difference. First operand 1079 states and 1265 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:35:41,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:35:41,146 INFO L93 Difference]: Finished difference Result 1232 states and 1426 transitions. [2024-10-24 18:35:41,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 18:35:41,147 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-10-24 18:35:41,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:35:41,153 INFO L225 Difference]: With dead ends: 1232 [2024-10-24 18:35:41,153 INFO L226 Difference]: Without dead ends: 1232 [2024-10-24 18:35:41,153 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 18:35:41,156 INFO L432 NwaCegarLoop]: 284 mSDtfsCounter, 2033 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 956 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2041 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-24 18:35:41,157 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2041 Valid, 346 Invalid, 983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 956 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-24 18:35:41,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1232 states. [2024-10-24 18:35:41,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1232 to 951. [2024-10-24 18:35:41,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 951 states, 441 states have (on average 2.2675736961451247) internal successors, (1000), 944 states have internal predecessors, (1000), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-24 18:35:41,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1018 transitions. [2024-10-24 18:35:41,194 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1018 transitions. Word has length 6 [2024-10-24 18:35:41,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:35:41,194 INFO L471 AbstractCegarLoop]: Abstraction has 951 states and 1018 transitions. [2024-10-24 18:35:41,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:35:41,195 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1018 transitions. [2024-10-24 18:35:41,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-24 18:35:41,195 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:35:41,195 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:35:41,200 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 (4)] Forceful destruction successful, exit code 0 [2024-10-24 18:35:41,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:35:41,396 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-24 18:35:41,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:35:41,397 INFO L85 PathProgramCache]: Analyzing trace with hash -979065647, now seen corresponding path program 1 times [2024-10-24 18:35:41,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:35:41,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [886764041] [2024-10-24 18:35:41,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:35:41,398 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:35:41,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:35:41,400 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:35:41,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-10-24 18:35:41,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:35:41,508 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 18:35:41,510 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:35:41,518 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-24 18:35:41,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:35:41,542 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:35:41,542 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:35:41,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [886764041] [2024-10-24 18:35:41,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [886764041] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:35:41,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:35:41,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 18:35:41,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673408993] [2024-10-24 18:35:41,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:35:41,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 18:35:41,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:35:41,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 18:35:41,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:35:41,544 INFO L87 Difference]: Start difference. First operand 951 states and 1018 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:35:43,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:35:43,264 INFO L93 Difference]: Finished difference Result 1219 states and 1325 transitions. [2024-10-24 18:35:43,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 18:35:43,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-10-24 18:35:43,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:35:43,270 INFO L225 Difference]: With dead ends: 1219 [2024-10-24 18:35:43,271 INFO L226 Difference]: Without dead ends: 1219 [2024-10-24 18:35:43,271 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:35:43,272 INFO L432 NwaCegarLoop]: 933 mSDtfsCounter, 460 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 1299 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-24 18:35:43,272 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 1299 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-24 18:35:43,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1219 states. [2024-10-24 18:35:43,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1219 to 968. [2024-10-24 18:35:43,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 468 states have (on average 2.2606837606837606) internal successors, (1058), 961 states have internal predecessors, (1058), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-24 18:35:43,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1076 transitions. [2024-10-24 18:35:43,302 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1076 transitions. Word has length 7 [2024-10-24 18:35:43,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:35:43,302 INFO L471 AbstractCegarLoop]: Abstraction has 968 states and 1076 transitions. [2024-10-24 18:35:43,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:35:43,303 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1076 transitions. [2024-10-24 18:35:43,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-24 18:35:43,303 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:35:43,303 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:35:43,308 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-10-24 18:35:43,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:35:43,507 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-24 18:35:43,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:35:43,507 INFO L85 PathProgramCache]: Analyzing trace with hash -979065648, now seen corresponding path program 1 times [2024-10-24 18:35:43,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:35:43,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1328171848] [2024-10-24 18:35:43,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:35:43,508 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:35:43,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:35:43,511 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:35:43,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-10-24 18:35:43,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:35:43,609 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 18:35:43,611 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:35:43,616 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-24 18:35:43,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:35:43,625 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:35:43,625 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:35:43,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1328171848] [2024-10-24 18:35:43,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1328171848] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:35:43,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:35:43,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 18:35:43,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282478103] [2024-10-24 18:35:43,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:35:43,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 18:35:43,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:35:43,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 18:35:43,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:35:43,627 INFO L87 Difference]: Start difference. First operand 968 states and 1076 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:35:44,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:35:44,893 INFO L93 Difference]: Finished difference Result 1126 states and 1262 transitions. [2024-10-24 18:35:44,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 18:35:44,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-10-24 18:35:44,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:35:44,899 INFO L225 Difference]: With dead ends: 1126 [2024-10-24 18:35:44,900 INFO L226 Difference]: Without dead ends: 1126 [2024-10-24 18:35:44,900 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:35:44,901 INFO L432 NwaCegarLoop]: 752 mSDtfsCounter, 681 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 988 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 18:35:44,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [689 Valid, 988 Invalid, 745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 18:35:44,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2024-10-24 18:35:44,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 921. [2024-10-24 18:35:44,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 468 states have (on average 2.1517094017094016) internal successors, (1007), 914 states have internal predecessors, (1007), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-24 18:35:44,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1025 transitions. [2024-10-24 18:35:44,920 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1025 transitions. Word has length 7 [2024-10-24 18:35:44,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:35:44,921 INFO L471 AbstractCegarLoop]: Abstraction has 921 states and 1025 transitions. [2024-10-24 18:35:44,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:35:44,921 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1025 transitions. [2024-10-24 18:35:44,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-24 18:35:44,921 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:35:44,922 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:35:44,925 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 (6)] Ended with exit code 0 [2024-10-24 18:35:45,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:35:45,123 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr422REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-24 18:35:45,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:35:45,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1432976317, now seen corresponding path program 1 times [2024-10-24 18:35:45,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:35:45,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [460196289] [2024-10-24 18:35:45,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:35:45,124 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:35:45,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:35:45,125 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:35:45,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-10-24 18:35:45,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:35:45,248 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 18:35:45,250 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:35:45,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:35:45,302 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:35:45,302 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:35:45,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [460196289] [2024-10-24 18:35:45,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [460196289] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:35:45,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:35:45,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 18:35:45,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994193967] [2024-10-24 18:35:45,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:35:45,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 18:35:45,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:35:45,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 18:35:45,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:35:45,304 INFO L87 Difference]: Start difference. First operand 921 states and 1025 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:35:46,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:35:46,275 INFO L93 Difference]: Finished difference Result 1326 states and 1496 transitions. [2024-10-24 18:35:46,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 18:35:46,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-10-24 18:35:46,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:35:46,280 INFO L225 Difference]: With dead ends: 1326 [2024-10-24 18:35:46,281 INFO L226 Difference]: Without dead ends: 1326 [2024-10-24 18:35:46,281 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:35:46,281 INFO L432 NwaCegarLoop]: 897 mSDtfsCounter, 431 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 1665 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 18:35:46,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [436 Valid, 1665 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 18:35:46,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2024-10-24 18:35:46,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 1075. [2024-10-24 18:35:46,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1075 states, 617 states have (on average 2.081037277147488) internal successors, (1284), 1068 states have internal predecessors, (1284), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-24 18:35:46,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1075 states to 1075 states and 1312 transitions. [2024-10-24 18:35:46,302 INFO L78 Accepts]: Start accepts. Automaton has 1075 states and 1312 transitions. Word has length 10 [2024-10-24 18:35:46,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:35:46,302 INFO L471 AbstractCegarLoop]: Abstraction has 1075 states and 1312 transitions. [2024-10-24 18:35:46,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:35:46,302 INFO L276 IsEmpty]: Start isEmpty. Operand 1075 states and 1312 transitions. [2024-10-24 18:35:46,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-24 18:35:46,303 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:35:46,303 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:35:46,309 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-10-24 18:35:46,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:35:46,504 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr330REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-24 18:35:46,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:35:46,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1214525722, now seen corresponding path program 1 times [2024-10-24 18:35:46,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:35:46,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [745007438] [2024-10-24 18:35:46,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:35:46,505 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:35:46,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:35:46,507 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:35:46,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-10-24 18:35:46,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:35:46,626 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 18:35:46,628 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:35:46,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:35:46,639 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:35:46,639 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:35:46,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [745007438] [2024-10-24 18:35:46,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [745007438] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:35:46,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:35:46,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 18:35:46,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145743206] [2024-10-24 18:35:46,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:35:46,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 18:35:46,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:35:46,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 18:35:46,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:35:46,641 INFO L87 Difference]: Start difference. First operand 1075 states and 1312 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:35:47,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:35:47,112 INFO L93 Difference]: Finished difference Result 1021 states and 1232 transitions. [2024-10-24 18:35:47,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 18:35:47,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-10-24 18:35:47,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:35:47,117 INFO L225 Difference]: With dead ends: 1021 [2024-10-24 18:35:47,117 INFO L226 Difference]: Without dead ends: 1021 [2024-10-24 18:35:47,117 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:35:47,118 INFO L432 NwaCegarLoop]: 800 mSDtfsCounter, 61 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 1558 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 18:35:47,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 1558 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 18:35:47,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1021 states. [2024-10-24 18:35:47,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1021 to 1021. [2024-10-24 18:35:47,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 587 states have (on average 2.0511073253833048) internal successors, (1204), 1014 states have internal predecessors, (1204), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-24 18:35:47,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1232 transitions. [2024-10-24 18:35:47,147 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1232 transitions. Word has length 12 [2024-10-24 18:35:47,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:35:47,147 INFO L471 AbstractCegarLoop]: Abstraction has 1021 states and 1232 transitions. [2024-10-24 18:35:47,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:35:47,148 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1232 transitions. [2024-10-24 18:35:47,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-24 18:35:47,149 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:35:47,149 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:35:47,154 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-10-24 18:35:47,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:35:47,350 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr424REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-24 18:35:47,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:35:47,351 INFO L85 PathProgramCache]: Analyzing trace with hash -2110353888, now seen corresponding path program 1 times [2024-10-24 18:35:47,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:35:47,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1250893814] [2024-10-24 18:35:47,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:35:47,351 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:35:47,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:35:47,353 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:35:47,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-10-24 18:35:47,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:35:47,469 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 18:35:47,471 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:35:47,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:35:47,554 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:35:47,554 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:35:47,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1250893814] [2024-10-24 18:35:47,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1250893814] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:35:47,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:35:47,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 18:35:47,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757501435] [2024-10-24 18:35:47,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:35:47,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 18:35:47,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:35:47,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 18:35:47,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 18:35:47,557 INFO L87 Difference]: Start difference. First operand 1021 states and 1232 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:35:48,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:35:48,558 INFO L93 Difference]: Finished difference Result 1250 states and 1418 transitions. [2024-10-24 18:35:48,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 18:35:48,559 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-10-24 18:35:48,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:35:48,562 INFO L225 Difference]: With dead ends: 1250 [2024-10-24 18:35:48,562 INFO L226 Difference]: Without dead ends: 1250 [2024-10-24 18:35:48,563 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 18:35:48,563 INFO L432 NwaCegarLoop]: 859 mSDtfsCounter, 394 mSDsluCounter, 1499 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 2358 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 18:35:48,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 2358 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 18:35:48,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2024-10-24 18:35:48,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1023. [2024-10-24 18:35:48,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1023 states, 589 states have (on average 2.0475382003395586) internal successors, (1206), 1016 states have internal predecessors, (1206), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-24 18:35:48,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1023 states to 1023 states and 1234 transitions. [2024-10-24 18:35:48,584 INFO L78 Accepts]: Start accepts. Automaton has 1023 states and 1234 transitions. Word has length 13 [2024-10-24 18:35:48,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:35:48,584 INFO L471 AbstractCegarLoop]: Abstraction has 1023 states and 1234 transitions. [2024-10-24 18:35:48,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:35:48,585 INFO L276 IsEmpty]: Start isEmpty. Operand 1023 states and 1234 transitions. [2024-10-24 18:35:48,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-24 18:35:48,586 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:35:48,586 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:35:48,591 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-10-24 18:35:48,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:35:48,787 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr527ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-24 18:35:48,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:35:48,787 INFO L85 PathProgramCache]: Analyzing trace with hash -2110346978, now seen corresponding path program 1 times [2024-10-24 18:35:48,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:35:48,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1787832445] [2024-10-24 18:35:48,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:35:48,788 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:35:48,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:35:48,789 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:35:48,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-10-24 18:35:48,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:35:48,935 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 18:35:48,937 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:35:48,946 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-24 18:35:48,946 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-24 18:35:48,947 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-24 18:35:48,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2024-10-24 18:35:48,998 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 18:35:48,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2024-10-24 18:35:49,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:35:49,011 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:35:49,011 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:35:49,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1787832445] [2024-10-24 18:35:49,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1787832445] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:35:49,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:35:49,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 18:35:49,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913339473] [2024-10-24 18:35:49,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:35:49,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 18:35:49,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:35:49,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 18:35:49,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 18:35:49,012 INFO L87 Difference]: Start difference. First operand 1023 states and 1234 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:35:50,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:35:50,196 INFO L93 Difference]: Finished difference Result 1775 states and 2009 transitions. [2024-10-24 18:35:50,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 18:35:50,197 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-10-24 18:35:50,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:35:50,201 INFO L225 Difference]: With dead ends: 1775 [2024-10-24 18:35:50,201 INFO L226 Difference]: Without dead ends: 1775 [2024-10-24 18:35:50,202 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 18:35:50,202 INFO L432 NwaCegarLoop]: 978 mSDtfsCounter, 842 mSDsluCounter, 1767 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 2745 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 18:35:50,202 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [850 Valid, 2745 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 18:35:50,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1775 states. [2024-10-24 18:35:50,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1775 to 1022. [2024-10-24 18:35:50,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1022 states, 588 states have (on average 2.0476190476190474) internal successors, (1204), 1015 states have internal predecessors, (1204), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-24 18:35:50,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1022 states to 1022 states and 1232 transitions. [2024-10-24 18:35:50,227 INFO L78 Accepts]: Start accepts. Automaton has 1022 states and 1232 transitions. Word has length 13 [2024-10-24 18:35:50,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:35:50,228 INFO L471 AbstractCegarLoop]: Abstraction has 1022 states and 1232 transitions. [2024-10-24 18:35:50,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:35:50,228 INFO L276 IsEmpty]: Start isEmpty. Operand 1022 states and 1232 transitions. [2024-10-24 18:35:50,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-24 18:35:50,228 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:35:50,228 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:35:50,236 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 [2024-10-24 18:35:50,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:35:50,429 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-24 18:35:50,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:35:50,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1015086425, now seen corresponding path program 1 times [2024-10-24 18:35:50,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:35:50,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2110312402] [2024-10-24 18:35:50,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:35:50,430 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:35:50,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:35:50,433 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:35:50,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-10-24 18:35:50,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:35:50,570 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 18:35:50,571 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:35:50,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:35:50,578 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:35:50,579 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:35:50,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2110312402] [2024-10-24 18:35:50,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2110312402] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:35:50,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:35:50,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 18:35:50,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820144573] [2024-10-24 18:35:50,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:35:50,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 18:35:50,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:35:50,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 18:35:50,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:35:50,587 INFO L87 Difference]: Start difference. First operand 1022 states and 1232 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:35:51,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:35:51,061 INFO L93 Difference]: Finished difference Result 968 states and 1152 transitions. [2024-10-24 18:35:51,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 18:35:51,062 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-10-24 18:35:51,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:35:51,065 INFO L225 Difference]: With dead ends: 968 [2024-10-24 18:35:51,065 INFO L226 Difference]: Without dead ends: 968 [2024-10-24 18:35:51,065 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:35:51,066 INFO L432 NwaCegarLoop]: 763 mSDtfsCounter, 61 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 1484 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 18:35:51,066 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 1484 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 18:35:51,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2024-10-24 18:35:51,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 968. [2024-10-24 18:35:51,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 558 states have (on average 2.014336917562724) internal successors, (1124), 961 states have internal predecessors, (1124), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-24 18:35:51,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1152 transitions. [2024-10-24 18:35:51,082 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1152 transitions. Word has length 15 [2024-10-24 18:35:51,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:35:51,082 INFO L471 AbstractCegarLoop]: Abstraction has 968 states and 1152 transitions. [2024-10-24 18:35:51,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:35:51,082 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1152 transitions. [2024-10-24 18:35:51,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-24 18:35:51,083 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:35:51,083 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:35:51,088 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-10-24 18:35:51,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:35:51,284 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-24 18:35:51,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:35:51,284 INFO L85 PathProgramCache]: Analyzing trace with hash -540480991, now seen corresponding path program 1 times [2024-10-24 18:35:51,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:35:51,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [786219568] [2024-10-24 18:35:51,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:35:51,285 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:35:51,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:35:51,287 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:35:51,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-10-24 18:35:51,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:35:51,448 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 18:35:51,450 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:35:51,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:35:51,471 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:35:51,472 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:35:51,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [786219568] [2024-10-24 18:35:51,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [786219568] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:35:51,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:35:51,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 18:35:51,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539505175] [2024-10-24 18:35:51,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:35:51,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 18:35:51,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:35:51,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 18:35:51,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 18:35:51,474 INFO L87 Difference]: Start difference. First operand 968 states and 1152 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:35:52,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:35:52,087 INFO L93 Difference]: Finished difference Result 952 states and 1108 transitions. [2024-10-24 18:35:52,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 18:35:52,090 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-10-24 18:35:52,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:35:52,093 INFO L225 Difference]: With dead ends: 952 [2024-10-24 18:35:52,094 INFO L226 Difference]: Without dead ends: 952 [2024-10-24 18:35:52,094 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 18:35:52,095 INFO L432 NwaCegarLoop]: 732 mSDtfsCounter, 45 mSDsluCounter, 1446 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 2178 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 18:35:52,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 2178 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 18:35:52,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2024-10-24 18:35:52,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 952. [2024-10-24 18:35:52,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 952 states, 556 states have (on average 1.9424460431654675) internal successors, (1080), 945 states have internal predecessors, (1080), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-24 18:35:52,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 1108 transitions. [2024-10-24 18:35:52,110 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 1108 transitions. Word has length 17 [2024-10-24 18:35:52,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:35:52,110 INFO L471 AbstractCegarLoop]: Abstraction has 952 states and 1108 transitions. [2024-10-24 18:35:52,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:35:52,111 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 1108 transitions. [2024-10-24 18:35:52,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-24 18:35:52,112 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:35:52,112 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:35:52,119 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2024-10-24 18:35:52,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:35:52,317 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-24 18:35:52,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:35:52,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1534247825, now seen corresponding path program 1 times [2024-10-24 18:35:52,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:35:52,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1316133231] [2024-10-24 18:35:52,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:35:52,318 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:35:52,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:35:52,322 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:35:52,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-10-24 18:35:52,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:35:52,472 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 18:35:52,474 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:35:52,479 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-24 18:35:52,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:35:52,563 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:35:52,563 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:35:52,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1316133231] [2024-10-24 18:35:52,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1316133231] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:35:52,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:35:52,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 18:35:52,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393256520] [2024-10-24 18:35:52,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:35:52,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 18:35:52,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:35:52,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 18:35:52,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 18:35:52,564 INFO L87 Difference]: Start difference. First operand 952 states and 1108 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:35:53,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:35:53,761 INFO L93 Difference]: Finished difference Result 956 states and 1108 transitions. [2024-10-24 18:35:53,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 18:35:53,761 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2024-10-24 18:35:53,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:35:53,765 INFO L225 Difference]: With dead ends: 956 [2024-10-24 18:35:53,765 INFO L226 Difference]: Without dead ends: 956 [2024-10-24 18:35:53,765 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 18:35:53,766 INFO L432 NwaCegarLoop]: 489 mSDtfsCounter, 583 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 977 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 591 SdHoareTripleChecker+Valid, 936 SdHoareTripleChecker+Invalid, 984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 18:35:53,766 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [591 Valid, 936 Invalid, 984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 977 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 18:35:53,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2024-10-24 18:35:53,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 948. [2024-10-24 18:35:53,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 556 states have (on average 1.9280575539568345) internal successors, (1072), 941 states have internal predecessors, (1072), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-24 18:35:53,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1100 transitions. [2024-10-24 18:35:53,779 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1100 transitions. Word has length 31 [2024-10-24 18:35:53,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:35:53,779 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1100 transitions. [2024-10-24 18:35:53,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:35:53,779 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1100 transitions. [2024-10-24 18:35:53,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-24 18:35:53,780 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:35:53,780 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:35:53,787 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 (13)] Ended with exit code 0 [2024-10-24 18:35:53,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:35:53,981 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-24 18:35:53,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:35:53,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1534247824, now seen corresponding path program 1 times [2024-10-24 18:35:53,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:35:53,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [608107445] [2024-10-24 18:35:53,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:35:53,982 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:35:53,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:35:53,985 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:35:53,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-10-24 18:35:54,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:35:54,149 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 18:35:54,151 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:35:54,158 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-24 18:35:54,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:35:54,295 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:35:54,295 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:35:54,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [608107445] [2024-10-24 18:35:54,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [608107445] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:35:54,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:35:54,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 18:35:54,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292667930] [2024-10-24 18:35:54,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:35:54,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 18:35:54,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:35:54,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 18:35:54,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 18:35:54,297 INFO L87 Difference]: Start difference. First operand 948 states and 1100 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:35:56,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:35:56,031 INFO L93 Difference]: Finished difference Result 1231 states and 1425 transitions. [2024-10-24 18:35:56,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 18:35:56,031 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2024-10-24 18:35:56,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:35:56,035 INFO L225 Difference]: With dead ends: 1231 [2024-10-24 18:35:56,035 INFO L226 Difference]: Without dead ends: 1231 [2024-10-24 18:35:56,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 18:35:56,036 INFO L432 NwaCegarLoop]: 874 mSDtfsCounter, 358 mSDsluCounter, 878 mSDsCounter, 0 mSdLazyCounter, 1188 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 1752 SdHoareTripleChecker+Invalid, 1191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-24 18:35:56,036 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 1752 Invalid, 1191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1188 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-24 18:35:56,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1231 states. [2024-10-24 18:35:56,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1231 to 944. [2024-10-24 18:35:56,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 944 states, 556 states have (on average 1.9136690647482015) internal successors, (1064), 937 states have internal predecessors, (1064), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-24 18:35:56,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 944 states to 944 states and 1092 transitions. [2024-10-24 18:35:56,050 INFO L78 Accepts]: Start accepts. Automaton has 944 states and 1092 transitions. Word has length 31 [2024-10-24 18:35:56,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:35:56,050 INFO L471 AbstractCegarLoop]: Abstraction has 944 states and 1092 transitions. [2024-10-24 18:35:56,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:35:56,050 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states and 1092 transitions. [2024-10-24 18:35:56,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-10-24 18:35:56,051 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:35:56,052 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:35:56,057 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2024-10-24 18:35:56,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:35:56,252 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-24 18:35:56,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:35:56,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1733807225, now seen corresponding path program 1 times [2024-10-24 18:35:56,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:35:56,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [422273143] [2024-10-24 18:35:56,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:35:56,253 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:35:56,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:35:56,255 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:35:56,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-10-24 18:35:56,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:35:56,442 INFO L255 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 18:35:56,444 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:35:56,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:35:56,471 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:35:56,471 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:35:56,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [422273143] [2024-10-24 18:35:56,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [422273143] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:35:56,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:35:56,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 18:35:56,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472840290] [2024-10-24 18:35:56,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:35:56,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 18:35:56,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:35:56,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 18:35:56,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 18:35:56,472 INFO L87 Difference]: Start difference. First operand 944 states and 1092 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:35:57,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:35:57,004 INFO L93 Difference]: Finished difference Result 932 states and 1072 transitions. [2024-10-24 18:35:57,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 18:35:57,006 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2024-10-24 18:35:57,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:35:57,009 INFO L225 Difference]: With dead ends: 932 [2024-10-24 18:35:57,009 INFO L226 Difference]: Without dead ends: 932 [2024-10-24 18:35:57,009 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 18:35:57,009 INFO L432 NwaCegarLoop]: 726 mSDtfsCounter, 15 mSDsluCounter, 1435 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2161 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 18:35:57,009 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2161 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 18:35:57,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 932 states. [2024-10-24 18:35:57,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 932 to 932. [2024-10-24 18:35:57,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 932 states, 544 states have (on average 1.9191176470588236) internal successors, (1044), 925 states have internal predecessors, (1044), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-24 18:35:57,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 932 states to 932 states and 1072 transitions. [2024-10-24 18:35:57,023 INFO L78 Accepts]: Start accepts. Automaton has 932 states and 1072 transitions. Word has length 50 [2024-10-24 18:35:57,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:35:57,023 INFO L471 AbstractCegarLoop]: Abstraction has 932 states and 1072 transitions. [2024-10-24 18:35:57,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:35:57,023 INFO L276 IsEmpty]: Start isEmpty. Operand 932 states and 1072 transitions. [2024-10-24 18:35:57,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-24 18:35:57,025 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:35:57,025 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:35:57,034 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 [2024-10-24 18:35:57,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:35:57,226 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-24 18:35:57,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:35:57,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1202208248, now seen corresponding path program 1 times [2024-10-24 18:35:57,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:35:57,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [108980948] [2024-10-24 18:35:57,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:35:57,227 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:35:57,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:35:57,229 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:35:57,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-10-24 18:35:57,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:35:57,521 INFO L255 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-24 18:35:57,524 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:35:57,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-24 18:35:57,544 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-24 18:35:57,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 18:35:57,968 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-10-24 18:35:57,980 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-24 18:35:57,980 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 [2024-10-24 18:35:57,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:35:57,991 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:35:57,991 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:35:57,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [108980948] [2024-10-24 18:35:57,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [108980948] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:35:57,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:35:57,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 18:35:57,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22701893] [2024-10-24 18:35:57,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:35:57,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 18:35:57,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:35:57,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 18:35:57,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 18:35:57,992 INFO L87 Difference]: Start difference. First operand 932 states and 1072 transitions. Second operand has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:35:59,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:35:59,164 INFO L93 Difference]: Finished difference Result 894 states and 1034 transitions. [2024-10-24 18:35:59,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 18:35:59,165 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2024-10-24 18:35:59,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:35:59,168 INFO L225 Difference]: With dead ends: 894 [2024-10-24 18:35:59,168 INFO L226 Difference]: Without dead ends: 894 [2024-10-24 18:35:59,169 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 18:35:59,169 INFO L432 NwaCegarLoop]: 368 mSDtfsCounter, 516 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 18:35:59,169 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 510 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 726 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 18:35:59,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2024-10-24 18:35:59,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 867. [2024-10-24 18:35:59,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 517 states have (on average 1.8220502901353965) internal successors, (942), 860 states have internal predecessors, (942), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-24 18:35:59,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 970 transitions. [2024-10-24 18:35:59,188 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 970 transitions. Word has length 54 [2024-10-24 18:35:59,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:35:59,188 INFO L471 AbstractCegarLoop]: Abstraction has 867 states and 970 transitions. [2024-10-24 18:35:59,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:35:59,188 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 970 transitions. [2024-10-24 18:35:59,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-24 18:35:59,189 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:35:59,189 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:35:59,200 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2024-10-24 18:35:59,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:35:59,391 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-24 18:35:59,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:35:59,391 INFO L85 PathProgramCache]: Analyzing trace with hash -307702477, now seen corresponding path program 1 times [2024-10-24 18:35:59,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:35:59,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1081869183] [2024-10-24 18:35:59,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:35:59,393 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:35:59,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:35:59,396 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:35:59,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-10-24 18:35:59,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:35:59,630 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-24 18:35:59,633 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:35:59,642 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-24 18:35:59,655 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-10-24 18:35:59,677 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-10-24 18:35:59,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:35:59,690 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:35:59,690 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:35:59,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1081869183] [2024-10-24 18:35:59,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1081869183] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:35:59,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:35:59,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 18:35:59,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494766289] [2024-10-24 18:35:59,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:35:59,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 18:35:59,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:35:59,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 18:35:59,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 18:35:59,692 INFO L87 Difference]: Start difference. First operand 867 states and 970 transitions. Second operand has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:36:01,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:36:01,152 INFO L93 Difference]: Finished difference Result 866 states and 969 transitions. [2024-10-24 18:36:01,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 18:36:01,153 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-10-24 18:36:01,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:36:01,155 INFO L225 Difference]: With dead ends: 866 [2024-10-24 18:36:01,155 INFO L226 Difference]: Without dead ends: 866 [2024-10-24 18:36:01,156 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 18:36:01,156 INFO L432 NwaCegarLoop]: 700 mSDtfsCounter, 2 mSDsluCounter, 1165 mSDsCounter, 0 mSdLazyCounter, 1303 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1865 SdHoareTripleChecker+Invalid, 1304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-24 18:36:01,156 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1865 Invalid, 1304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1303 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-24 18:36:01,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2024-10-24 18:36:01,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 866. [2024-10-24 18:36:01,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 866 states, 517 states have (on average 1.8201160541586074) internal successors, (941), 859 states have internal predecessors, (941), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-24 18:36:01,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 969 transitions. [2024-10-24 18:36:01,167 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 969 transitions. Word has length 58 [2024-10-24 18:36:01,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:36:01,167 INFO L471 AbstractCegarLoop]: Abstraction has 866 states and 969 transitions. [2024-10-24 18:36:01,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:36:01,167 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 969 transitions. [2024-10-24 18:36:01,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-24 18:36:01,168 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:36:01,168 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:36:01,177 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2024-10-24 18:36:01,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:36:01,369 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-24 18:36:01,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:36:01,369 INFO L85 PathProgramCache]: Analyzing trace with hash -307702476, now seen corresponding path program 1 times [2024-10-24 18:36:01,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:36:01,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [469728343] [2024-10-24 18:36:01,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:36:01,370 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:36:01,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:36:01,373 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:36:01,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-10-24 18:36:01,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:36:01,645 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-24 18:36:01,649 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:36:01,662 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-24 18:36:01,683 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-10-24 18:36:01,689 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-10-24 18:36:01,727 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-10-24 18:36:01,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:36:01,746 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:36:01,746 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:36:01,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [469728343] [2024-10-24 18:36:01,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [469728343] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:36:01,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:36:01,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 18:36:01,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91201534] [2024-10-24 18:36:01,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:36:01,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 18:36:01,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:36:01,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 18:36:01,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 18:36:01,749 INFO L87 Difference]: Start difference. First operand 866 states and 969 transitions. Second operand has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:36:03,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:36:03,470 INFO L93 Difference]: Finished difference Result 865 states and 968 transitions. [2024-10-24 18:36:03,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 18:36:03,471 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-10-24 18:36:03,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:36:03,473 INFO L225 Difference]: With dead ends: 865 [2024-10-24 18:36:03,473 INFO L226 Difference]: Without dead ends: 865 [2024-10-24 18:36:03,473 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 18:36:03,474 INFO L432 NwaCegarLoop]: 700 mSDtfsCounter, 1 mSDsluCounter, 1196 mSDsCounter, 0 mSdLazyCounter, 1269 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1896 SdHoareTripleChecker+Invalid, 1270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-24 18:36:03,474 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1896 Invalid, 1270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1269 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-24 18:36:03,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-10-24 18:36:03,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2024-10-24 18:36:03,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 516 states have (on average 1.821705426356589) internal successors, (940), 858 states have internal predecessors, (940), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-24 18:36:03,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 968 transitions. [2024-10-24 18:36:03,484 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 968 transitions. Word has length 58 [2024-10-24 18:36:03,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:36:03,484 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 968 transitions. [2024-10-24 18:36:03,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:36:03,485 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 968 transitions. [2024-10-24 18:36:03,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-24 18:36:03,485 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:36:03,485 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:36:03,496 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 (18)] Ended with exit code 0 [2024-10-24 18:36:03,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:36:03,686 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-24 18:36:03,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:36:03,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1438688823, now seen corresponding path program 1 times [2024-10-24 18:36:03,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:36:03,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1350867226] [2024-10-24 18:36:03,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:36:03,688 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:36:03,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:36:03,689 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:36:03,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-10-24 18:36:03,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:36:03,926 INFO L255 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 18:36:03,928 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:36:03,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:36:03,942 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:36:03,942 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:36:03,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1350867226] [2024-10-24 18:36:03,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1350867226] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:36:03,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:36:03,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 18:36:03,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483358574] [2024-10-24 18:36:03,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:36:03,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 18:36:03,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:36:03,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 18:36:03,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 18:36:03,945 INFO L87 Difference]: Start difference. First operand 865 states and 968 transitions. Second operand has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-24 18:36:04,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:36:04,458 INFO L93 Difference]: Finished difference Result 867 states and 971 transitions. [2024-10-24 18:36:04,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 18:36:04,460 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2024-10-24 18:36:04,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:36:04,463 INFO L225 Difference]: With dead ends: 867 [2024-10-24 18:36:04,463 INFO L226 Difference]: Without dead ends: 867 [2024-10-24 18:36:04,463 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 18:36:04,464 INFO L432 NwaCegarLoop]: 700 mSDtfsCounter, 0 mSDsluCounter, 1397 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2097 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 18:36:04,464 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2097 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 18:36:04,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 867 states. [2024-10-24 18:36:04,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 867 to 867. [2024-10-24 18:36:04,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 517 states have (on average 1.8220502901353965) internal successors, (942), 860 states have internal predecessors, (942), 15 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2024-10-24 18:36:04,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 971 transitions. [2024-10-24 18:36:04,478 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 971 transitions. Word has length 64 [2024-10-24 18:36:04,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:36:04,478 INFO L471 AbstractCegarLoop]: Abstraction has 867 states and 971 transitions. [2024-10-24 18:36:04,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-24 18:36:04,479 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 971 transitions. [2024-10-24 18:36:04,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-24 18:36:04,480 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:36:04,480 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:36:04,489 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 (19)] Forceful destruction successful, exit code 0 [2024-10-24 18:36:04,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:36:04,681 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-24 18:36:04,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:36:04,681 INFO L85 PathProgramCache]: Analyzing trace with hash -485483859, now seen corresponding path program 1 times [2024-10-24 18:36:04,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:36:04,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1131058808] [2024-10-24 18:36:04,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:36:04,682 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:36:04,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:36:04,683 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:36:04,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-10-24 18:36:04,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:36:04,926 INFO L255 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 18:36:04,928 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:36:04,948 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:36:04,948 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 18:36:05,003 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:36:05,004 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:36:05,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1131058808] [2024-10-24 18:36:05,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1131058808] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 18:36:05,004 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 18:36:05,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-10-24 18:36:05,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914166941] [2024-10-24 18:36:05,004 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 18:36:05,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 18:36:05,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:36:05,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 18:36:05,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-24 18:36:05,006 INFO L87 Difference]: Start difference. First operand 867 states and 971 transitions. Second operand has 8 states, 6 states have (on average 11.0) internal successors, (66), 8 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 18:36:06,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:36:06,072 INFO L93 Difference]: Finished difference Result 876 states and 985 transitions. [2024-10-24 18:36:06,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 18:36:06,074 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 11.0) internal successors, (66), 8 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 65 [2024-10-24 18:36:06,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:36:06,077 INFO L225 Difference]: With dead ends: 876 [2024-10-24 18:36:06,078 INFO L226 Difference]: Without dead ends: 876 [2024-10-24 18:36:06,078 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-10-24 18:36:06,078 INFO L432 NwaCegarLoop]: 699 mSDtfsCounter, 4 mSDsluCounter, 4182 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4881 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 18:36:06,079 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 4881 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 18:36:06,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2024-10-24 18:36:06,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 875. [2024-10-24 18:36:06,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 875 states, 524 states have (on average 1.8225190839694656) internal successors, (955), 867 states have internal predecessors, (955), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2024-10-24 18:36:06,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 984 transitions. [2024-10-24 18:36:06,094 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 984 transitions. Word has length 65 [2024-10-24 18:36:06,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:36:06,095 INFO L471 AbstractCegarLoop]: Abstraction has 875 states and 984 transitions. [2024-10-24 18:36:06,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 11.0) internal successors, (66), 8 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 18:36:06,095 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 984 transitions. [2024-10-24 18:36:06,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-24 18:36:06,095 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:36:06,096 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:36:06,104 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2024-10-24 18:36:06,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:36:06,296 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-24 18:36:06,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:36:06,297 INFO L85 PathProgramCache]: Analyzing trace with hash -399174729, now seen corresponding path program 2 times [2024-10-24 18:36:06,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:36:06,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1619339273] [2024-10-24 18:36:06,297 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 18:36:06,297 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:36:06,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:36:06,299 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:36:06,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-10-24 18:36:06,795 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 18:36:06,795 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 18:36:06,806 INFO L255 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-24 18:36:06,809 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:36:06,848 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:36:06,848 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 18:36:06,962 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:36:06,962 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:36:06,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1619339273] [2024-10-24 18:36:06,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1619339273] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 18:36:06,962 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 18:36:06,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-10-24 18:36:06,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834351919] [2024-10-24 18:36:06,962 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 18:36:06,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 18:36:06,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:36:06,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 18:36:06,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-10-24 18:36:06,964 INFO L87 Difference]: Start difference. First operand 875 states and 984 transitions. Second operand has 14 states, 12 states have (on average 6.0) internal successors, (72), 14 states have internal predecessors, (72), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 18:36:08,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:36:08,442 INFO L93 Difference]: Finished difference Result 887 states and 1003 transitions. [2024-10-24 18:36:08,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-24 18:36:08,443 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 6.0) internal successors, (72), 14 states have internal predecessors, (72), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 68 [2024-10-24 18:36:08,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:36:08,446 INFO L225 Difference]: With dead ends: 887 [2024-10-24 18:36:08,446 INFO L226 Difference]: Without dead ends: 885 [2024-10-24 18:36:08,447 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2024-10-24 18:36:08,447 INFO L432 NwaCegarLoop]: 699 mSDtfsCounter, 7 mSDsluCounter, 4883 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5582 SdHoareTripleChecker+Invalid, 898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 18:36:08,448 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5582 Invalid, 898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 18:36:08,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2024-10-24 18:36:08,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 884. [2024-10-24 18:36:08,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 884 states, 533 states have (on average 1.8142589118198875) internal successors, (967), 876 states have internal predecessors, (967), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2024-10-24 18:36:08,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 996 transitions. [2024-10-24 18:36:08,461 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 996 transitions. Word has length 68 [2024-10-24 18:36:08,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:36:08,461 INFO L471 AbstractCegarLoop]: Abstraction has 884 states and 996 transitions. [2024-10-24 18:36:08,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 6.0) internal successors, (72), 14 states have internal predecessors, (72), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 18:36:08,463 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 996 transitions. [2024-10-24 18:36:08,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-24 18:36:08,464 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:36:08,464 INFO L215 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:36:08,477 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2024-10-24 18:36:08,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:36:08,665 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-24 18:36:08,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:36:08,665 INFO L85 PathProgramCache]: Analyzing trace with hash 747278327, now seen corresponding path program 3 times [2024-10-24 18:36:08,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:36:08,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1148405176] [2024-10-24 18:36:08,666 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-24 18:36:08,666 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:36:08,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:36:08,667 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:36:08,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2024-10-24 18:36:09,262 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-10-24 18:36:09,262 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 18:36:09,274 INFO L255 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-24 18:36:09,276 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:36:09,396 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:36:09,396 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 18:36:09,819 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:36:09,819 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:36:09,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1148405176] [2024-10-24 18:36:09,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1148405176] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 18:36:09,819 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 18:36:09,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-10-24 18:36:09,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253168658] [2024-10-24 18:36:09,820 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 18:36:09,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-24 18:36:09,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:36:09,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-24 18:36:09,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-10-24 18:36:09,822 INFO L87 Difference]: Start difference. First operand 884 states and 996 transitions. Second operand has 26 states, 24 states have (on average 3.5) internal successors, (84), 26 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 18:36:12,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:36:12,845 INFO L93 Difference]: Finished difference Result 905 states and 1032 transitions. [2024-10-24 18:36:12,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-10-24 18:36:12,846 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 3.5) internal successors, (84), 26 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 74 [2024-10-24 18:36:12,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:36:12,848 INFO L225 Difference]: With dead ends: 905 [2024-10-24 18:36:12,848 INFO L226 Difference]: Without dead ends: 902 [2024-10-24 18:36:12,848 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2024-10-24 18:36:12,849 INFO L432 NwaCegarLoop]: 699 mSDtfsCounter, 13 mSDsluCounter, 7676 mSDsCounter, 0 mSdLazyCounter, 1637 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 8375 SdHoareTripleChecker+Invalid, 1660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-24 18:36:12,849 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 8375 Invalid, 1660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1637 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-24 18:36:12,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2024-10-24 18:36:12,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 902. [2024-10-24 18:36:12,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 902 states, 551 states have (on average 1.7967332123411979) internal successors, (990), 894 states have internal predecessors, (990), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2024-10-24 18:36:12,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1019 transitions. [2024-10-24 18:36:12,861 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1019 transitions. Word has length 74 [2024-10-24 18:36:12,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:36:12,862 INFO L471 AbstractCegarLoop]: Abstraction has 902 states and 1019 transitions. [2024-10-24 18:36:12,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 3.5) internal successors, (84), 26 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 18:36:12,862 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1019 transitions. [2024-10-24 18:36:12,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-24 18:36:12,862 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:36:12,863 INFO L215 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:36:12,874 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2024-10-24 18:36:13,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:36:13,063 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-24 18:36:13,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:36:13,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1612642423, now seen corresponding path program 4 times [2024-10-24 18:36:13,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:36:13,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [158239339] [2024-10-24 18:36:13,064 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-24 18:36:13,064 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:36:13,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:36:13,065 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:36:13,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2024-10-24 18:36:13,517 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-24 18:36:13,517 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 18:36:13,532 INFO L255 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-10-24 18:36:13,535 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:36:13,858 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:36:13,858 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 18:36:14,939 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:36:14,940 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:36:14,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [158239339] [2024-10-24 18:36:14,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [158239339] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 18:36:14,940 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 18:36:14,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2024-10-24 18:36:14,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887194981] [2024-10-24 18:36:14,941 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 18:36:14,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-10-24 18:36:14,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:36:14,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-10-24 18:36:14,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2024-10-24 18:36:14,944 INFO L87 Difference]: Start difference. First operand 902 states and 1019 transitions. Second operand has 50 states, 48 states have (on average 2.25) internal successors, (108), 50 states have internal predecessors, (108), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 18:36:22,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:36:22,810 INFO L93 Difference]: Finished difference Result 939 states and 1088 transitions. [2024-10-24 18:36:22,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-10-24 18:36:22,812 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 48 states have (on average 2.25) internal successors, (108), 50 states have internal predecessors, (108), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 86 [2024-10-24 18:36:22,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:36:22,815 INFO L225 Difference]: With dead ends: 939 [2024-10-24 18:36:22,815 INFO L226 Difference]: Without dead ends: 937 [2024-10-24 18:36:22,817 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=2713, Invalid=5843, Unknown=0, NotChecked=0, Total=8556 [2024-10-24 18:36:22,817 INFO L432 NwaCegarLoop]: 699 mSDtfsCounter, 25 mSDsluCounter, 16054 mSDsCounter, 0 mSdLazyCounter, 4067 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 16753 SdHoareTripleChecker+Invalid, 4115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 4067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-10-24 18:36:22,817 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 16753 Invalid, 4115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 4067 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-10-24 18:36:22,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2024-10-24 18:36:22,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 936. [2024-10-24 18:36:22,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 936 states, 585 states have (on average 1.7709401709401709) internal successors, (1036), 928 states have internal predecessors, (1036), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2024-10-24 18:36:22,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1065 transitions. [2024-10-24 18:36:22,829 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1065 transitions. Word has length 86 [2024-10-24 18:36:22,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:36:22,830 INFO L471 AbstractCegarLoop]: Abstraction has 936 states and 1065 transitions. [2024-10-24 18:36:22,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 48 states have (on average 2.25) internal successors, (108), 50 states have internal predecessors, (108), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 18:36:22,830 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1065 transitions. [2024-10-24 18:36:22,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-10-24 18:36:22,831 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:36:22,831 INFO L215 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:36:22,843 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 (23)] Ended with exit code 0 [2024-10-24 18:36:23,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:36:23,032 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-24 18:36:23,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:36:23,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1619387721, now seen corresponding path program 5 times [2024-10-24 18:36:23,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:36:23,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1332484760] [2024-10-24 18:36:23,033 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-24 18:36:23,033 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:36:23,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:36:23,034 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:36:23,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2024-10-24 18:36:24,114 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2024-10-24 18:36:24,114 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 18:36:24,135 INFO L255 TraceCheckSpWp]: Trace formula consists of 809 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-10-24 18:36:24,143 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:36:24,146 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-24 18:36:24,234 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-10-24 18:36:24,234 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2024-10-24 18:36:24,257 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-10-24 18:36:24,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2024-10-24 18:36:25,308 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-10-24 18:36:25,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-10-24 18:36:25,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-10-24 18:36:25,396 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-10-24 18:36:25,397 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 18:36:25,699 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2026 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_2026) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))) is different from false [2024-10-24 18:36:25,701 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:36:25,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1332484760] [2024-10-24 18:36:25,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1332484760] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 18:36:25,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [985539363] [2024-10-24 18:36:25,702 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-24 18:36:25,702 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-10-24 18:36:25,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-10-24 18:36:25,703 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-10-24 18:36:25,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process