./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_FNV_test8-2.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_FNV_test8-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b8fb715e20e93734f29581bef128b7f826b4b5933b157899cd0cb0d668434a9d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 18:33:28,193 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 18:33:28,275 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-24 18:33:28,280 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 18:33:28,281 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 18:33:28,320 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 18:33:28,321 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 18:33:28,322 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 18:33:28,323 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 18:33:28,324 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 18:33:28,324 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 18:33:28,325 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 18:33:28,325 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 18:33:28,327 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 18:33:28,328 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 18:33:28,328 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 18:33:28,328 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 18:33:28,329 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 18:33:28,329 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 18:33:28,329 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 18:33:28,329 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 18:33:28,334 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 18:33:28,334 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-24 18:33:28,334 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 18:33:28,335 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 18:33:28,335 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 18:33:28,335 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 18:33:28,335 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 18:33:28,336 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 18:33:28,336 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 18:33:28,336 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 18:33:28,336 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 18:33:28,337 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 18:33:28,337 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 18:33:28,338 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 18:33:28,338 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 18:33:28,338 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 18:33:28,339 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 18:33:28,339 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 18:33:28,339 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 18:33:28,339 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 18:33:28,340 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 18:33:28,340 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8fb715e20e93734f29581bef128b7f826b4b5933b157899cd0cb0d668434a9d [2024-10-24 18:33:28,612 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 18:33:28,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 18:33:28,668 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 18:33:28,669 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 18:33:28,669 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 18:33:28,671 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i [2024-10-24 18:33:30,228 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 18:33:30,558 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 18:33:30,561 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i [2024-10-24 18:33:30,592 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d24cad25/8e71b28c48c34a678efbf270bb4b69cf/FLAG8ec36a213 [2024-10-24 18:33:30,611 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d24cad25/8e71b28c48c34a678efbf270bb4b69cf [2024-10-24 18:33:30,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 18:33:30,616 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 18:33:30,622 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 18:33:30,622 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 18:33:30,628 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 18:33:30,629 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:33:30" (1/1) ... [2024-10-24 18:33:30,630 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54c426c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:33:30, skipping insertion in model container [2024-10-24 18:33:30,630 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:33:30" (1/1) ... [2024-10-24 18:33:30,702 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 18:33:31,423 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 18:33:31,436 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 18:33:31,437 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6374b8cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:33:31, skipping insertion in model container [2024-10-24 18:33:31,437 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 18:33:31,438 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-10-24 18:33:31,441 INFO L158 Benchmark]: Toolchain (without parser) took 823.78ms. Allocated memory is still 161.5MB. Free memory was 93.8MB in the beginning and 116.8MB in the end (delta: -23.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-24 18:33:31,442 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 94.4MB. Free memory was 60.7MB in the beginning and 60.7MB in the end (delta: 25.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 18:33:31,443 INFO L158 Benchmark]: CACSL2BoogieTranslator took 815.84ms. Allocated memory is still 161.5MB. Free memory was 93.5MB in the beginning and 116.9MB in the end (delta: -23.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-24 18:33:31,444 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 94.4MB. Free memory was 60.7MB in the beginning and 60.7MB in the end (delta: 25.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 815.84ms. Allocated memory is still 161.5MB. Free memory was 93.5MB in the beginning and 116.9MB in the end (delta: -23.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 766]: 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_FNV_test8-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b8fb715e20e93734f29581bef128b7f826b4b5933b157899cd0cb0d668434a9d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 18:33:33,701 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 18:33:33,780 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-10-24 18:33:33,789 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 18:33:33,792 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 18:33:33,836 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 18:33:33,837 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 18:33:33,837 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 18:33:33,838 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 18:33:33,839 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 18:33:33,841 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 18:33:33,842 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 18:33:33,842 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 18:33:33,843 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 18:33:33,843 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 18:33:33,844 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 18:33:33,844 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 18:33:33,845 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 18:33:33,845 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 18:33:33,845 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 18:33:33,845 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 18:33:33,846 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 18:33:33,846 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-24 18:33:33,847 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 18:33:33,847 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 18:33:33,847 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-24 18:33:33,847 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 18:33:33,848 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-24 18:33:33,848 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 18:33:33,848 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 18:33:33,849 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 18:33:33,849 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 18:33:33,849 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 18:33:33,850 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 18:33:33,850 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 18:33:33,850 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 18:33:33,851 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 18:33:33,851 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 18:33:33,851 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-24 18:33:33,851 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-24 18:33:33,852 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 18:33:33,852 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 18:33:33,852 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 18:33:33,852 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 18:33:33,853 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-24 18:33:33,853 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8fb715e20e93734f29581bef128b7f826b4b5933b157899cd0cb0d668434a9d [2024-10-24 18:33:34,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 18:33:34,269 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 18:33:34,275 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 18:33:34,276 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 18:33:34,277 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 18:33:34,278 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i [2024-10-24 18:33:36,000 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 18:33:36,349 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 18:33:36,351 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i [2024-10-24 18:33:36,376 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc2444482/0ec34e8ea05b4c5ba6de656e9f35e021/FLAGbef8e92ea [2024-10-24 18:33:36,394 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc2444482/0ec34e8ea05b4c5ba6de656e9f35e021 [2024-10-24 18:33:36,398 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 18:33:36,399 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 18:33:36,402 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 18:33:36,402 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 18:33:36,408 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 18:33:36,409 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:33:36" (1/1) ... [2024-10-24 18:33:36,410 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@775947eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:33:36, skipping insertion in model container [2024-10-24 18:33:36,410 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:33:36" (1/1) ... [2024-10-24 18:33:36,497 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 18:33:37,100 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 18:33:37,114 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-10-24 18:33:37,135 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 18:33:37,250 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 18:33:37,255 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 18:33:37,373 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 18:33:37,431 INFO L204 MainTranslator]: Completed translation [2024-10-24 18:33:37,432 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:33:37 WrapperNode [2024-10-24 18:33:37,432 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 18:33:37,433 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 18:33:37,433 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 18:33:37,434 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 18:33:37,442 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:33:37" (1/1) ... [2024-10-24 18:33:37,493 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:33:37" (1/1) ... [2024-10-24 18:33:37,588 INFO L138 Inliner]: procedures = 180, calls = 342, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1204 [2024-10-24 18:33:37,589 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 18:33:37,590 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 18:33:37,590 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 18:33:37,590 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 18:33:37,613 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:33:37" (1/1) ... [2024-10-24 18:33:37,615 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:33:37" (1/1) ... [2024-10-24 18:33:37,633 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:33:37" (1/1) ... [2024-10-24 18:33:37,739 INFO L175 MemorySlicer]: Split 304 memory accesses to 3 slices as follows [268, 2, 34]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [0, 2, 0]. The 62 writes are split as follows [58, 0, 4]. [2024-10-24 18:33:37,739 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:33:37" (1/1) ... [2024-10-24 18:33:37,740 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:33:37" (1/1) ... [2024-10-24 18:33:37,786 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:33:37" (1/1) ... [2024-10-24 18:33:37,795 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:33:37" (1/1) ... [2024-10-24 18:33:37,800 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:33:37" (1/1) ... [2024-10-24 18:33:37,807 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:33:37" (1/1) ... [2024-10-24 18:33:37,817 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 18:33:37,818 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 18:33:37,818 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 18:33:37,818 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 18:33:37,819 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:33:37" (1/1) ... [2024-10-24 18:33:37,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 18:33:37,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 18:33:37,862 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 18:33:37,866 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 18:33:37,950 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-10-24 18:33:37,951 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-10-24 18:33:37,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-10-24 18:33:37,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-10-24 18:33:37,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-10-24 18:33:37,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-24 18:33:37,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-24 18:33:37,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-24 18:33:37,953 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-24 18:33:37,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-24 18:33:37,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-10-24 18:33:37,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-10-24 18:33:37,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-10-24 18:33:37,953 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-10-24 18:33:37,953 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-10-24 18:33:37,953 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-10-24 18:33:37,953 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2024-10-24 18:33:37,954 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2024-10-24 18:33:37,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-24 18:33:37,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 18:33:37,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-24 18:33:37,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-24 18:33:37,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-24 18:33:37,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-24 18:33:37,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-24 18:33:37,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-24 18:33:37,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-24 18:33:37,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 18:33:37,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-24 18:33:37,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-24 18:33:37,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-24 18:33:37,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-24 18:33:37,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-24 18:33:37,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-24 18:33:37,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 18:33:37,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 18:33:38,246 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 18:33:38,250 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 18:33:38,276 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-24 18:33:38,319 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-24 18:33:38,340 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-24 18:33:42,978 INFO L? ?]: Removed 1322 outVars from TransFormulas that were not future-live. [2024-10-24 18:33:42,979 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 18:33:43,181 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 18:33:43,182 INFO L314 CfgBuilder]: Removed 71 assume(true) statements. [2024-10-24 18:33:43,182 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:33:43 BoogieIcfgContainer [2024-10-24 18:33:43,182 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 18:33:43,185 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 18:33:43,185 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 18:33:43,189 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 18:33:43,190 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:33:36" (1/3) ... [2024-10-24 18:33:43,190 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c815607 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:33:43, skipping insertion in model container [2024-10-24 18:33:43,191 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:33:37" (2/3) ... [2024-10-24 18:33:43,191 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c815607 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:33:43, skipping insertion in model container [2024-10-24 18:33:43,191 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:33:43" (3/3) ... [2024-10-24 18:33:43,192 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test8-2.i [2024-10-24 18:33:43,210 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 18:33:43,211 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 634 error locations. [2024-10-24 18:33:43,295 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 18:33:43,302 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;@38910fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 18:33:43,303 INFO L334 AbstractCegarLoop]: Starting to check reachability of 634 error locations. [2024-10-24 18:33:43,310 INFO L276 IsEmpty]: Start isEmpty. Operand has 1181 states, 523 states have (on average 2.5066921606118546) internal successors, (1311), 1171 states have internal predecessors, (1311), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2024-10-24 18:33:43,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-10-24 18:33:43,316 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:33:43,317 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-10-24 18:33:43,317 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-10-24 18:33:43,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:33:43,322 INFO L85 PathProgramCache]: Analyzing trace with hash 70318, now seen corresponding path program 1 times [2024-10-24 18:33:43,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:33:43,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1080144788] [2024-10-24 18:33:43,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:33:43,337 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 18:33:43,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:33:43,340 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 18:33:43,342 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 18:33:43,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:33:43,487 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 18:33:43,495 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:33:43,543 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-24 18:33:43,562 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 18:33:43,566 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:33:43,567 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:33:43,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1080144788] [2024-10-24 18:33:43,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1080144788] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:33:43,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:33:43,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 18:33:43,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342887374] [2024-10-24 18:33:43,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:33:43,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 18:33:43,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:33:43,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 18:33:43,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:33:43,658 INFO L87 Difference]: Start difference. First operand has 1181 states, 523 states have (on average 2.5066921606118546) internal successors, (1311), 1171 states have internal predecessors, (1311), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 3 states, 2 states have (on average 1.0) 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 18:33:45,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:33:45,744 INFO L93 Difference]: Finished difference Result 1348 states and 1455 transitions. [2024-10-24 18:33:45,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 18:33:45,747 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 18:33:45,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:33:45,766 INFO L225 Difference]: With dead ends: 1348 [2024-10-24 18:33:45,767 INFO L226 Difference]: Without dead ends: 1347 [2024-10-24 18:33:45,768 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 18:33:45,772 INFO L432 NwaCegarLoop]: 692 mSDtfsCounter, 1048 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1052 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-24 18:33:45,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1052 Valid, 901 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 763 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-24 18:33:45,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1347 states. [2024-10-24 18:33:45,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1347 to 1171. [2024-10-24 18:33:45,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1171 states, 529 states have (on average 2.3232514177693764) internal successors, (1229), 1160 states have internal predecessors, (1229), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2024-10-24 18:33:45,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1171 states to 1171 states and 1273 transitions. [2024-10-24 18:33:45,868 INFO L78 Accepts]: Start accepts. Automaton has 1171 states and 1273 transitions. Word has length 2 [2024-10-24 18:33:45,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:33:45,869 INFO L471 AbstractCegarLoop]: Abstraction has 1171 states and 1273 transitions. [2024-10-24 18:33:45,869 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 18:33:45,869 INFO L276 IsEmpty]: Start isEmpty. Operand 1171 states and 1273 transitions. [2024-10-24 18:33:45,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-10-24 18:33:45,869 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:33:45,870 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-10-24 18:33:45,878 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-10-24 18:33:46,070 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 18:33:46,071 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-10-24 18:33:46,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:33:46,072 INFO L85 PathProgramCache]: Analyzing trace with hash 70319, now seen corresponding path program 1 times [2024-10-24 18:33:46,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:33:46,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [611171588] [2024-10-24 18:33:46,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:33:46,073 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 18:33:46,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:33:46,076 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 18:33:46,078 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 18:33:46,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:33:46,219 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 18:33:46,221 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:33:46,229 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 18:33:46,243 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 18:33:46,243 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:33:46,244 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:33:46,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [611171588] [2024-10-24 18:33:46,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [611171588] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:33:46,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:33:46,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 18:33:46,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433541409] [2024-10-24 18:33:46,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:33:46,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 18:33:46,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:33:46,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 18:33:46,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:33:46,248 INFO L87 Difference]: Start difference. First operand 1171 states and 1273 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 18:33:48,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:33:48,853 INFO L93 Difference]: Finished difference Result 1720 states and 1865 transitions. [2024-10-24 18:33:48,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 18:33:48,855 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 18:33:48,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:33:48,861 INFO L225 Difference]: With dead ends: 1720 [2024-10-24 18:33:48,862 INFO L226 Difference]: Without dead ends: 1720 [2024-10-24 18:33:48,862 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 18:33:48,866 INFO L432 NwaCegarLoop]: 902 mSDtfsCounter, 588 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 966 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 1540 SdHoareTripleChecker+Invalid, 972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-24 18:33:48,867 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [589 Valid, 1540 Invalid, 972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 966 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-24 18:33:48,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1720 states. [2024-10-24 18:33:48,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1720 to 1348. [2024-10-24 18:33:48,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1348 states, 706 states have (on average 2.2988668555240794) internal successors, (1623), 1336 states have internal predecessors, (1623), 24 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2024-10-24 18:33:48,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1348 states to 1348 states and 1669 transitions. [2024-10-24 18:33:48,912 INFO L78 Accepts]: Start accepts. Automaton has 1348 states and 1669 transitions. Word has length 2 [2024-10-24 18:33:48,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:33:48,912 INFO L471 AbstractCegarLoop]: Abstraction has 1348 states and 1669 transitions. [2024-10-24 18:33:48,912 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 18:33:48,912 INFO L276 IsEmpty]: Start isEmpty. Operand 1348 states and 1669 transitions. [2024-10-24 18:33:48,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-24 18:33:48,913 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:33:48,913 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-24 18:33:48,921 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 18:33:49,113 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 18:33:49,114 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-10-24 18:33:49,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:33:49,115 INFO L85 PathProgramCache]: Analyzing trace with hash 519002808, now seen corresponding path program 1 times [2024-10-24 18:33:49,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:33:49,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1362327900] [2024-10-24 18:33:49,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:33:49,116 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 18:33:49,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:33:49,118 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 18:33:49,119 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 18:33:49,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:33:49,287 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 18:33:49,290 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:33:49,300 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 18:33:49,307 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 18:33:49,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 18:33:49,378 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 18:33:49,398 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-24 18:33:49,398 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 18:33:49,428 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 18:33:49,428 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:33:49,428 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:33:49,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1362327900] [2024-10-24 18:33:49,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1362327900] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:33:49,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:33:49,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 18:33:49,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873955422] [2024-10-24 18:33:49,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:33:49,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 18:33:49,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:33:49,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 18:33:49,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 18:33:49,430 INFO L87 Difference]: Start difference. First operand 1348 states and 1669 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 18:33:52,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:33:52,334 INFO L93 Difference]: Finished difference Result 1518 states and 1846 transitions. [2024-10-24 18:33:52,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 18:33:52,334 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 18:33:52,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:33:52,339 INFO L225 Difference]: With dead ends: 1518 [2024-10-24 18:33:52,340 INFO L226 Difference]: Without dead ends: 1518 [2024-10-24 18:33:52,340 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 18:33:52,341 INFO L432 NwaCegarLoop]: 379 mSDtfsCounter, 1340 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1346 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 1154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-10-24 18:33:52,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1346 Valid, 583 Invalid, 1154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1137 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-10-24 18:33:52,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1518 states. [2024-10-24 18:33:52,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1518 to 1159. [2024-10-24 18:33:52,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1159 states, 529 states have (on average 2.298676748582231) internal successors, (1216), 1148 states have internal predecessors, (1216), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2024-10-24 18:33:52,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1159 states to 1159 states and 1260 transitions. [2024-10-24 18:33:52,379 INFO L78 Accepts]: Start accepts. Automaton has 1159 states and 1260 transitions. Word has length 6 [2024-10-24 18:33:52,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:33:52,381 INFO L471 AbstractCegarLoop]: Abstraction has 1159 states and 1260 transitions. [2024-10-24 18:33:52,381 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 18:33:52,382 INFO L276 IsEmpty]: Start isEmpty. Operand 1159 states and 1260 transitions. [2024-10-24 18:33:52,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-24 18:33:52,382 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:33:52,382 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:33:52,388 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-10-24 18:33:52,582 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 18:33:52,583 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-10-24 18:33:52,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:33:52,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1090782041, now seen corresponding path program 1 times [2024-10-24 18:33:52,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:33:52,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1760744076] [2024-10-24 18:33:52,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:33:52,585 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 18:33:52,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:33:52,588 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 18:33:52,589 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 18:33:52,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:33:52,724 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 18:33:52,726 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:33:52,736 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 18:33:52,749 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 18:33:52,749 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:33:52,749 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:33:52,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1760744076] [2024-10-24 18:33:52,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1760744076] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:33:52,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:33:52,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 18:33:52,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883374400] [2024-10-24 18:33:52,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:33:52,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 18:33:52,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:33:52,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 18:33:52,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:33:52,751 INFO L87 Difference]: Start difference. First operand 1159 states and 1260 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 18:33:54,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:33:54,372 INFO L93 Difference]: Finished difference Result 1459 states and 1589 transitions. [2024-10-24 18:33:54,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 18:33:54,373 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 18:33:54,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:33:54,378 INFO L225 Difference]: With dead ends: 1459 [2024-10-24 18:33:54,378 INFO L226 Difference]: Without dead ends: 1459 [2024-10-24 18:33:54,378 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 18:33:54,379 INFO L432 NwaCegarLoop]: 1016 mSDtfsCounter, 842 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 918 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 1372 SdHoareTripleChecker+Invalid, 970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-24 18:33:54,380 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [847 Valid, 1372 Invalid, 970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 918 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-24 18:33:54,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1459 states. [2024-10-24 18:33:54,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1459 to 1111. [2024-10-24 18:33:54,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1111 states, 529 states have (on average 2.2060491493383743) internal successors, (1167), 1100 states have internal predecessors, (1167), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2024-10-24 18:33:54,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1111 states to 1111 states and 1211 transitions. [2024-10-24 18:33:54,411 INFO L78 Accepts]: Start accepts. Automaton has 1111 states and 1211 transitions. Word has length 7 [2024-10-24 18:33:54,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:33:54,411 INFO L471 AbstractCegarLoop]: Abstraction has 1111 states and 1211 transitions. [2024-10-24 18:33:54,412 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 18:33:54,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1111 states and 1211 transitions. [2024-10-24 18:33:54,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-24 18:33:54,412 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:33:54,413 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:33:54,417 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 18:33:54,613 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 18:33:54,614 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-10-24 18:33:54,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:33:54,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1090782040, now seen corresponding path program 1 times [2024-10-24 18:33:54,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:33:54,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [278227502] [2024-10-24 18:33:54,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:33:54,615 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 18:33:54,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:33:54,621 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 18:33:54,622 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 18:33:54,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:33:54,751 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 18:33:54,752 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:33:54,760 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 18:33:54,790 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 18:33:54,790 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:33:54,790 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:33:54,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [278227502] [2024-10-24 18:33:54,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [278227502] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:33:54,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:33:54,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 18:33:54,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794901260] [2024-10-24 18:33:54,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:33:54,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 18:33:54,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:33:54,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 18:33:54,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:33:54,792 INFO L87 Difference]: Start difference. First operand 1111 states and 1211 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 18:33:56,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:33:56,947 INFO L93 Difference]: Finished difference Result 1546 states and 1682 transitions. [2024-10-24 18:33:56,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 18:33:56,948 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 18:33:56,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:33:56,952 INFO L225 Difference]: With dead ends: 1546 [2024-10-24 18:33:56,952 INFO L226 Difference]: Without dead ends: 1546 [2024-10-24 18:33:56,953 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 18:33:56,953 INFO L432 NwaCegarLoop]: 1186 mSDtfsCounter, 633 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 922 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 635 SdHoareTripleChecker+Valid, 1686 SdHoareTripleChecker+Invalid, 937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-24 18:33:56,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [635 Valid, 1686 Invalid, 937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 922 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-24 18:33:56,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1546 states. [2024-10-24 18:33:56,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1546 to 1319. [2024-10-24 18:33:56,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1319 states, 745 states have (on average 2.1865771812080537) internal successors, (1629), 1306 states have internal predecessors, (1629), 25 states have call successors, (25), 4 states have call predecessors, (25), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2024-10-24 18:33:56,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 1677 transitions. [2024-10-24 18:33:56,982 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 1677 transitions. Word has length 7 [2024-10-24 18:33:56,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:33:56,983 INFO L471 AbstractCegarLoop]: Abstraction has 1319 states and 1677 transitions. [2024-10-24 18:33:56,983 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 18:33:56,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 1677 transitions. [2024-10-24 18:33:56,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-24 18:33:56,984 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:33:56,984 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:33:56,990 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 18:33:57,184 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 18:33:57,185 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr527REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-10-24 18:33:57,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:33:57,185 INFO L85 PathProgramCache]: Analyzing trace with hash -709812944, now seen corresponding path program 1 times [2024-10-24 18:33:57,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:33:57,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [188239800] [2024-10-24 18:33:57,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:33:57,186 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 18:33:57,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:33:57,187 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 18:33:57,188 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 18:33:57,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:33:57,332 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 18:33:57,334 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:33:57,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:33:57,396 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:33:57,396 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:33:57,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [188239800] [2024-10-24 18:33:57,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [188239800] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:33:57,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:33:57,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 18:33:57,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314213135] [2024-10-24 18:33:57,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:33:57,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 18:33:57,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:33:57,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 18:33:57,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:33:57,399 INFO L87 Difference]: Start difference. First operand 1319 states and 1677 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 18:33:58,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:33:58,590 INFO L93 Difference]: Finished difference Result 1998 states and 2612 transitions. [2024-10-24 18:33:58,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 18:33:58,591 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 18:33:58,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:33:58,597 INFO L225 Difference]: With dead ends: 1998 [2024-10-24 18:33:58,598 INFO L226 Difference]: Without dead ends: 1998 [2024-10-24 18:33:58,598 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 18:33:58,599 INFO L432 NwaCegarLoop]: 1167 mSDtfsCounter, 572 mSDsluCounter, 955 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 2122 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 18:33:58,599 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [573 Valid, 2122 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 18:33:58,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1998 states. [2024-10-24 18:33:58,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1998 to 1654. [2024-10-24 18:33:58,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1654 states, 1078 states have (on average 2.170686456400742) internal successors, (2340), 1639 states have internal predecessors, (2340), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-24 18:33:58,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1654 states to 1654 states and 2392 transitions. [2024-10-24 18:33:58,639 INFO L78 Accepts]: Start accepts. Automaton has 1654 states and 2392 transitions. Word has length 10 [2024-10-24 18:33:58,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:33:58,639 INFO L471 AbstractCegarLoop]: Abstraction has 1654 states and 2392 transitions. [2024-10-24 18:33:58,640 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 18:33:58,640 INFO L276 IsEmpty]: Start isEmpty. Operand 1654 states and 2392 transitions. [2024-10-24 18:33:58,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-24 18:33:58,640 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:33:58,641 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:33:58,646 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 18:33:58,841 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 18:33:58,842 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr334REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-10-24 18:33:58,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:33:58,842 INFO L85 PathProgramCache]: Analyzing trace with hash 170345729, now seen corresponding path program 1 times [2024-10-24 18:33:58,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:33:58,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1296821349] [2024-10-24 18:33:58,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:33:58,843 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 18:33:58,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:33:58,844 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 18:33:58,845 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 18:33:58,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:33:58,987 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 18:33:58,989 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:33:59,003 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 18:33:59,004 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:33:59,004 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:33:59,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1296821349] [2024-10-24 18:33:59,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1296821349] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:33:59,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:33:59,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 18:33:59,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081492831] [2024-10-24 18:33:59,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:33:59,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 18:33:59,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:33:59,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 18:33:59,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:33:59,006 INFO L87 Difference]: Start difference. First operand 1654 states and 2392 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 18:33:59,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:33:59,790 INFO L93 Difference]: Finished difference Result 1570 states and 2232 transitions. [2024-10-24 18:33:59,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 18:33:59,795 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 18:33:59,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:33:59,799 INFO L225 Difference]: With dead ends: 1570 [2024-10-24 18:33:59,799 INFO L226 Difference]: Without dead ends: 1570 [2024-10-24 18:33:59,799 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 18:33:59,800 INFO L432 NwaCegarLoop]: 1018 mSDtfsCounter, 61 mSDsluCounter, 976 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 1994 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 18:33:59,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 1994 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 18:33:59,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1570 states. [2024-10-24 18:33:59,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1570 to 1570. [2024-10-24 18:33:59,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1018 states have (on average 2.1414538310412574) internal successors, (2180), 1555 states have internal predecessors, (2180), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-24 18:33:59,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 2232 transitions. [2024-10-24 18:33:59,827 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 2232 transitions. Word has length 12 [2024-10-24 18:33:59,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:33:59,827 INFO L471 AbstractCegarLoop]: Abstraction has 1570 states and 2232 transitions. [2024-10-24 18:33:59,827 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 18:33:59,827 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 2232 transitions. [2024-10-24 18:33:59,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-24 18:33:59,828 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:33:59,828 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:33:59,833 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 18:34:00,031 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 18:34:00,032 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr632ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-10-24 18:34:00,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:34:00,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1905928002, now seen corresponding path program 1 times [2024-10-24 18:34:00,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:34:00,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1961988869] [2024-10-24 18:34:00,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:34:00,033 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 18:34:00,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:34:00,034 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 18:34:00,035 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 (9)] Waiting until timeout for monitored process [2024-10-24 18:34:00,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:34:00,216 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 18:34:00,219 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:34:00,226 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-24 18:34:00,227 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-24 18:34:00,227 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-24 18:34:00,231 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 18:34:00,274 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 18:34:00,275 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 18:34:00,286 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 18:34:00,286 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:34:00,287 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:34:00,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1961988869] [2024-10-24 18:34:00,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1961988869] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:34:00,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:34:00,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 18:34:00,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929462362] [2024-10-24 18:34:00,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:34:00,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 18:34:00,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:34:00,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 18:34:00,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 18:34:00,289 INFO L87 Difference]: Start difference. First operand 1570 states and 2232 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 18:34:01,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:34:01,622 INFO L93 Difference]: Finished difference Result 2774 states and 3844 transitions. [2024-10-24 18:34:01,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 18:34:01,623 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 18:34:01,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:34:01,629 INFO L225 Difference]: With dead ends: 2774 [2024-10-24 18:34:01,629 INFO L226 Difference]: Without dead ends: 2774 [2024-10-24 18:34:01,630 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 18:34:01,630 INFO L432 NwaCegarLoop]: 1017 mSDtfsCounter, 1017 mSDsluCounter, 2026 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1022 SdHoareTripleChecker+Valid, 3043 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 18:34:01,630 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1022 Valid, 3043 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 18:34:01,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2774 states. [2024-10-24 18:34:01,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2774 to 1569. [2024-10-24 18:34:01,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1017 states have (on average 2.1415929203539825) internal successors, (2178), 1554 states have internal predecessors, (2178), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-24 18:34:01,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 2230 transitions. [2024-10-24 18:34:01,664 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 2230 transitions. Word has length 13 [2024-10-24 18:34:01,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:34:01,664 INFO L471 AbstractCegarLoop]: Abstraction has 1569 states and 2230 transitions. [2024-10-24 18:34:01,664 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 18:34:01,665 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 2230 transitions. [2024-10-24 18:34:01,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-24 18:34:01,665 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:34:01,665 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:34:01,672 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 18:34:01,869 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 18:34:01,870 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-10-24 18:34:01,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:34:01,870 INFO L85 PathProgramCache]: Analyzing trace with hash -249532353, now seen corresponding path program 1 times [2024-10-24 18:34:01,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:34:01,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [427537338] [2024-10-24 18:34:01,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:34:01,871 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 18:34:01,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:34:01,872 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 18:34:01,873 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 18:34:02,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:34:02,047 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 18:34:02,048 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:34:02,055 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 18:34:02,055 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:34:02,055 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:34:02,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [427537338] [2024-10-24 18:34:02,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [427537338] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:34:02,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:34:02,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 18:34:02,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129493754] [2024-10-24 18:34:02,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:34:02,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 18:34:02,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:34:02,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 18:34:02,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:34:02,057 INFO L87 Difference]: Start difference. First operand 1569 states and 2230 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 18:34:02,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:34:02,608 INFO L93 Difference]: Finished difference Result 1515 states and 2150 transitions. [2024-10-24 18:34:02,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 18:34:02,610 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 18:34:02,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:34:02,615 INFO L225 Difference]: With dead ends: 1515 [2024-10-24 18:34:02,616 INFO L226 Difference]: Without dead ends: 1515 [2024-10-24 18:34:02,616 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 18:34:02,616 INFO L432 NwaCegarLoop]: 981 mSDtfsCounter, 61 mSDsluCounter, 939 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 1920 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 18:34:02,617 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 1920 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 18:34:02,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1515 states. [2024-10-24 18:34:02,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1515 to 1515. [2024-10-24 18:34:02,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1515 states, 987 states have (on average 2.125633232016211) internal successors, (2098), 1500 states have internal predecessors, (2098), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-24 18:34:02,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1515 states to 1515 states and 2150 transitions. [2024-10-24 18:34:02,648 INFO L78 Accepts]: Start accepts. Automaton has 1515 states and 2150 transitions. Word has length 15 [2024-10-24 18:34:02,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:34:02,648 INFO L471 AbstractCegarLoop]: Abstraction has 1515 states and 2150 transitions. [2024-10-24 18:34:02,648 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 18:34:02,648 INFO L276 IsEmpty]: Start isEmpty. Operand 1515 states and 2150 transitions. [2024-10-24 18:34:02,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-24 18:34:02,649 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:34:02,649 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 18:34:02,655 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 18:34:02,850 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 18:34:02,850 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-10-24 18:34:02,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:34:02,850 INFO L85 PathProgramCache]: Analyzing trace with hash 717576632, now seen corresponding path program 1 times [2024-10-24 18:34:02,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:34:02,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [513684367] [2024-10-24 18:34:02,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:34:02,851 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 18:34:02,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:34:02,852 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 18:34:02,853 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 18:34:03,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:34:03,020 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 18:34:03,022 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:34:03,045 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 18:34:03,045 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:34:03,045 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:34:03,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [513684367] [2024-10-24 18:34:03,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [513684367] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:34:03,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:34:03,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 18:34:03,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308068736] [2024-10-24 18:34:03,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:34:03,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 18:34:03,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:34:03,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 18:34:03,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 18:34:03,056 INFO L87 Difference]: Start difference. First operand 1515 states and 2150 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 18:34:03,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:34:03,826 INFO L93 Difference]: Finished difference Result 1499 states and 2106 transitions. [2024-10-24 18:34:03,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 18:34:03,828 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 18:34:03,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:34:03,831 INFO L225 Difference]: With dead ends: 1499 [2024-10-24 18:34:03,831 INFO L226 Difference]: Without dead ends: 1499 [2024-10-24 18:34:03,832 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 18:34:03,832 INFO L432 NwaCegarLoop]: 950 mSDtfsCounter, 45 mSDsluCounter, 1882 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 2832 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 18:34:03,832 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 2832 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 18:34:03,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1499 states. [2024-10-24 18:34:03,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1499 to 1499. [2024-10-24 18:34:03,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1499 states, 985 states have (on average 2.085279187817259) internal successors, (2054), 1484 states have internal predecessors, (2054), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-24 18:34:03,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1499 states to 1499 states and 2106 transitions. [2024-10-24 18:34:03,854 INFO L78 Accepts]: Start accepts. Automaton has 1499 states and 2106 transitions. Word has length 17 [2024-10-24 18:34:03,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:34:03,855 INFO L471 AbstractCegarLoop]: Abstraction has 1499 states and 2106 transitions. [2024-10-24 18:34:03,855 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 18:34:03,855 INFO L276 IsEmpty]: Start isEmpty. Operand 1499 states and 2106 transitions. [2024-10-24 18:34:03,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-24 18:34:03,856 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:34:03,856 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 18:34:03,863 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 18:34:04,056 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 18:34:04,056 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-10-24 18:34:04,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:34:04,057 INFO L85 PathProgramCache]: Analyzing trace with hash -2015839738, now seen corresponding path program 1 times [2024-10-24 18:34:04,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:34:04,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1104112910] [2024-10-24 18:34:04,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:34:04,057 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 18:34:04,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:34:04,059 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 18:34:04,059 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 18:34:04,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:34:04,211 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 18:34:04,213 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:34:04,218 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 18:34:04,288 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 18:34:04,288 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:34:04,288 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:34:04,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1104112910] [2024-10-24 18:34:04,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1104112910] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:34:04,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:34:04,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 18:34:04,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125020978] [2024-10-24 18:34:04,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:34:04,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 18:34:04,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:34:04,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 18:34:04,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 18:34:04,289 INFO L87 Difference]: Start difference. First operand 1499 states and 2106 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 18:34:05,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:34:05,795 INFO L93 Difference]: Finished difference Result 1516 states and 2122 transitions. [2024-10-24 18:34:05,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 18:34:05,795 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 18:34:05,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:34:05,799 INFO L225 Difference]: With dead ends: 1516 [2024-10-24 18:34:05,799 INFO L226 Difference]: Without dead ends: 1516 [2024-10-24 18:34:05,799 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 18:34:05,800 INFO L432 NwaCegarLoop]: 632 mSDtfsCounter, 744 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 1182 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 749 SdHoareTripleChecker+Valid, 1292 SdHoareTripleChecker+Invalid, 1190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-24 18:34:05,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [749 Valid, 1292 Invalid, 1190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1182 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-24 18:34:05,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1516 states. [2024-10-24 18:34:05,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1516 to 1495. [2024-10-24 18:34:05,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1495 states, 985 states have (on average 2.0771573604060913) internal successors, (2046), 1480 states have internal predecessors, (2046), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-24 18:34:05,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 2098 transitions. [2024-10-24 18:34:05,822 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 2098 transitions. Word has length 31 [2024-10-24 18:34:05,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:34:05,822 INFO L471 AbstractCegarLoop]: Abstraction has 1495 states and 2098 transitions. [2024-10-24 18:34:05,823 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 18:34:05,823 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 2098 transitions. [2024-10-24 18:34:05,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-24 18:34:05,823 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:34:05,824 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 18:34:05,831 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 18:34:06,027 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 18:34:06,028 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-10-24 18:34:06,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:34:06,028 INFO L85 PathProgramCache]: Analyzing trace with hash -2015839737, now seen corresponding path program 1 times [2024-10-24 18:34:06,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:34:06,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1914239876] [2024-10-24 18:34:06,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:34:06,029 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 18:34:06,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:34:06,032 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 18:34:06,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-10-24 18:34:06,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:34:06,209 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 18:34:06,211 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:34:06,217 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 18:34:06,415 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 18:34:06,415 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:34:06,415 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:34:06,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1914239876] [2024-10-24 18:34:06,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1914239876] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:34:06,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:34:06,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 18:34:06,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300643345] [2024-10-24 18:34:06,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:34:06,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 18:34:06,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:34:06,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 18:34:06,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 18:34:06,417 INFO L87 Difference]: Start difference. First operand 1495 states and 2098 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 18:34:09,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:34:09,144 INFO L93 Difference]: Finished difference Result 1703 states and 2104 transitions. [2024-10-24 18:34:09,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 18:34:09,145 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 18:34:09,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:34:09,149 INFO L225 Difference]: With dead ends: 1703 [2024-10-24 18:34:09,150 INFO L226 Difference]: Without dead ends: 1703 [2024-10-24 18:34:09,150 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 18:34:09,150 INFO L432 NwaCegarLoop]: 1169 mSDtfsCounter, 531 mSDsluCounter, 1232 mSDsCounter, 0 mSdLazyCounter, 1575 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 2401 SdHoareTripleChecker+Invalid, 1578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-10-24 18:34:09,150 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 2401 Invalid, 1578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1575 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-10-24 18:34:09,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2024-10-24 18:34:09,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 1491. [2024-10-24 18:34:09,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1491 states, 985 states have (on average 2.0690355329949237) internal successors, (2038), 1476 states have internal predecessors, (2038), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-24 18:34:09,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1491 states to 1491 states and 2090 transitions. [2024-10-24 18:34:09,174 INFO L78 Accepts]: Start accepts. Automaton has 1491 states and 2090 transitions. Word has length 31 [2024-10-24 18:34:09,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:34:09,174 INFO L471 AbstractCegarLoop]: Abstraction has 1491 states and 2090 transitions. [2024-10-24 18:34:09,175 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 18:34:09,175 INFO L276 IsEmpty]: Start isEmpty. Operand 1491 states and 2090 transitions. [2024-10-24 18:34:09,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-10-24 18:34:09,177 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:34:09,177 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 18:34:09,184 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 18:34:09,378 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 18:34:09,379 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-10-24 18:34:09,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:34:09,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1732169696, now seen corresponding path program 1 times [2024-10-24 18:34:09,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:34:09,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2115625250] [2024-10-24 18:34:09,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:34:09,380 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 18:34:09,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:34:09,383 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 18:34:09,384 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 18:34:09,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:34:09,609 INFO L255 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 18:34:09,611 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:34:09,649 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 18:34:09,650 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:34:09,650 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:34:09,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2115625250] [2024-10-24 18:34:09,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2115625250] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:34:09,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:34:09,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 18:34:09,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056572378] [2024-10-24 18:34:09,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:34:09,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 18:34:09,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:34:09,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 18:34:09,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 18:34:09,651 INFO L87 Difference]: Start difference. First operand 1491 states and 2090 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 18:34:10,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:34:10,350 INFO L93 Difference]: Finished difference Result 1479 states and 2070 transitions. [2024-10-24 18:34:10,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 18:34:10,352 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 18:34:10,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:34:10,356 INFO L225 Difference]: With dead ends: 1479 [2024-10-24 18:34:10,356 INFO L226 Difference]: Without dead ends: 1479 [2024-10-24 18:34:10,356 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 18:34:10,357 INFO L432 NwaCegarLoop]: 944 mSDtfsCounter, 15 mSDsluCounter, 1871 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2815 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 18:34:10,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2815 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 18:34:10,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1479 states. [2024-10-24 18:34:10,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1479 to 1479. [2024-10-24 18:34:10,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1479 states, 973 states have (on average 2.0739979445015417) internal successors, (2018), 1464 states have internal predecessors, (2018), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-24 18:34:10,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 2070 transitions. [2024-10-24 18:34:10,380 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 2070 transitions. Word has length 50 [2024-10-24 18:34:10,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:34:10,380 INFO L471 AbstractCegarLoop]: Abstraction has 1479 states and 2070 transitions. [2024-10-24 18:34:10,380 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 18:34:10,381 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 2070 transitions. [2024-10-24 18:34:10,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-24 18:34:10,384 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:34:10,384 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 18:34:10,393 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-10-24 18:34:10,585 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 18:34:10,585 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-10-24 18:34:10,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:34:10,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1191760002, now seen corresponding path program 1 times [2024-10-24 18:34:10,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:34:10,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [366971467] [2024-10-24 18:34:10,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:34:10,587 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 18:34:10,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:34:10,591 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 18:34:10,593 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 18:34:10,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:34:10,912 INFO L255 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-24 18:34:10,915 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:34:10,923 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 18:34:10,930 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 18:34:11,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 18:34:11,386 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 18:34:11,401 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-24 18:34:11,401 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 18:34:11,414 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 18:34:11,415 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:34:11,415 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:34:11,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [366971467] [2024-10-24 18:34:11,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [366971467] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:34:11,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:34:11,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 18:34:11,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493635679] [2024-10-24 18:34:11,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:34:11,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 18:34:11,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:34:11,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 18:34:11,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 18:34:11,417 INFO L87 Difference]: Start difference. First operand 1479 states and 2070 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 18:34:13,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:34:13,024 INFO L93 Difference]: Finished difference Result 1452 states and 2044 transitions. [2024-10-24 18:34:13,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 18:34:13,025 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 18:34:13,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:34:13,029 INFO L225 Difference]: With dead ends: 1452 [2024-10-24 18:34:13,030 INFO L226 Difference]: Without dead ends: 1452 [2024-10-24 18:34:13,030 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 18:34:13,031 INFO L432 NwaCegarLoop]: 461 mSDtfsCounter, 695 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 878 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-24 18:34:13,031 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [700 Valid, 735 Invalid, 922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 878 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-24 18:34:13,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1452 states. [2024-10-24 18:34:13,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1452 to 1120. [2024-10-24 18:34:13,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1120 states, 657 states have (on average 1.9710806697108068) internal successors, (1295), 1108 states have internal predecessors, (1295), 24 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2024-10-24 18:34:13,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 1341 transitions. [2024-10-24 18:34:13,050 INFO L78 Accepts]: Start accepts. Automaton has 1120 states and 1341 transitions. Word has length 54 [2024-10-24 18:34:13,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:34:13,050 INFO L471 AbstractCegarLoop]: Abstraction has 1120 states and 1341 transitions. [2024-10-24 18:34:13,051 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 18:34:13,051 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states and 1341 transitions. [2024-10-24 18:34:13,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-24 18:34:13,052 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:34:13,052 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:34:13,061 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2024-10-24 18:34:13,252 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 18:34:13,252 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-10-24 18:34:13,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:34:13,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1643354685, now seen corresponding path program 1 times [2024-10-24 18:34:13,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:34:13,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [789267136] [2024-10-24 18:34:13,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:34:13,254 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 18:34:13,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:34:13,257 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 18:34:13,258 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 18:34:13,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:34:13,507 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 18:34:13,509 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:34:13,521 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-24 18:34:13,545 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 18:34:13,561 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 18:34:13,569 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 18:34:13,569 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:34:13,569 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:34:13,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [789267136] [2024-10-24 18:34:13,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [789267136] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:34:13,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:34:13,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 18:34:13,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015264866] [2024-10-24 18:34:13,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:34:13,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 18:34:13,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:34:13,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 18:34:13,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 18:34:13,571 INFO L87 Difference]: Start difference. First operand 1120 states and 1341 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 18:34:15,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:34:15,610 INFO L93 Difference]: Finished difference Result 1119 states and 1340 transitions. [2024-10-24 18:34:15,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 18:34:15,611 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 18:34:15,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:34:15,615 INFO L225 Difference]: With dead ends: 1119 [2024-10-24 18:34:15,615 INFO L226 Difference]: Without dead ends: 1119 [2024-10-24 18:34:15,615 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 18:34:15,616 INFO L432 NwaCegarLoop]: 916 mSDtfsCounter, 2 mSDsluCounter, 1549 mSDsCounter, 0 mSdLazyCounter, 1623 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2465 SdHoareTripleChecker+Invalid, 1624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-24 18:34:15,616 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2465 Invalid, 1624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1623 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-24 18:34:15,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1119 states. [2024-10-24 18:34:15,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1119 to 1119. [2024-10-24 18:34:15,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1119 states, 657 states have (on average 1.969558599695586) internal successors, (1294), 1107 states have internal predecessors, (1294), 24 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2024-10-24 18:34:15,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1119 states to 1119 states and 1340 transitions. [2024-10-24 18:34:15,630 INFO L78 Accepts]: Start accepts. Automaton has 1119 states and 1340 transitions. Word has length 58 [2024-10-24 18:34:15,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:34:15,630 INFO L471 AbstractCegarLoop]: Abstraction has 1119 states and 1340 transitions. [2024-10-24 18:34:15,630 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 18:34:15,630 INFO L276 IsEmpty]: Start isEmpty. Operand 1119 states and 1340 transitions. [2024-10-24 18:34:15,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-24 18:34:15,633 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:34:15,633 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 18:34:15,643 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2024-10-24 18:34:15,833 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 18:34:15,834 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-10-24 18:34:15,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:34:15,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1643354686, now seen corresponding path program 1 times [2024-10-24 18:34:15,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:34:15,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1822148371] [2024-10-24 18:34:15,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:34:15,835 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 18:34:15,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:34:15,836 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 18:34:15,837 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 18:34:16,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:34:16,118 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-24 18:34:16,120 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:34:16,128 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 18:34:16,144 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 18:34:16,150 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 18:34:16,199 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 18:34:16,216 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 18:34:16,216 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:34:16,216 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:34:16,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1822148371] [2024-10-24 18:34:16,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1822148371] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:34:16,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:34:16,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 18:34:16,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291405855] [2024-10-24 18:34:16,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:34:16,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 18:34:16,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:34:16,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 18:34:16,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 18:34:16,218 INFO L87 Difference]: Start difference. First operand 1119 states and 1340 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 18:34:18,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:34:18,716 INFO L93 Difference]: Finished difference Result 1118 states and 1339 transitions. [2024-10-24 18:34:18,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 18:34:18,717 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 18:34:18,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:34:18,719 INFO L225 Difference]: With dead ends: 1118 [2024-10-24 18:34:18,720 INFO L226 Difference]: Without dead ends: 1118 [2024-10-24 18:34:18,720 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 18:34:18,720 INFO L432 NwaCegarLoop]: 916 mSDtfsCounter, 1 mSDsluCounter, 1603 mSDsCounter, 0 mSdLazyCounter, 1566 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2519 SdHoareTripleChecker+Invalid, 1567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-24 18:34:18,721 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2519 Invalid, 1567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1566 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-24 18:34:18,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2024-10-24 18:34:18,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 1118. [2024-10-24 18:34:18,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1118 states, 656 states have (on average 1.9710365853658536) internal successors, (1293), 1106 states have internal predecessors, (1293), 24 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2024-10-24 18:34:18,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1118 states to 1118 states and 1339 transitions. [2024-10-24 18:34:18,730 INFO L78 Accepts]: Start accepts. Automaton has 1118 states and 1339 transitions. Word has length 58 [2024-10-24 18:34:18,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:34:18,730 INFO L471 AbstractCegarLoop]: Abstraction has 1118 states and 1339 transitions. [2024-10-24 18:34:18,731 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 18:34:18,731 INFO L276 IsEmpty]: Start isEmpty. Operand 1118 states and 1339 transitions. [2024-10-24 18:34:18,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-24 18:34:18,731 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:34:18,731 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 18:34:18,739 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 18:34:18,932 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 18:34:18,932 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-10-24 18:34:18,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:34:18,932 INFO L85 PathProgramCache]: Analyzing trace with hash 789031617, now seen corresponding path program 1 times [2024-10-24 18:34:18,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:34:18,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1285474512] [2024-10-24 18:34:18,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:34:18,933 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 18:34:18,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:34:18,934 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 18:34:18,935 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 18:34:19,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:34:19,201 INFO L255 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 18:34:19,203 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:34:19,228 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 18:34:19,229 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:34:19,229 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:34:19,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1285474512] [2024-10-24 18:34:19,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1285474512] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:34:19,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:34:19,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 18:34:19,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023028569] [2024-10-24 18:34:19,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:34:19,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 18:34:19,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:34:19,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 18:34:19,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 18:34:19,232 INFO L87 Difference]: Start difference. First operand 1118 states and 1339 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 18:34:19,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:34:19,921 INFO L93 Difference]: Finished difference Result 1120 states and 1342 transitions. [2024-10-24 18:34:19,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 18:34:19,923 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 18:34:19,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:34:19,926 INFO L225 Difference]: With dead ends: 1120 [2024-10-24 18:34:19,926 INFO L226 Difference]: Without dead ends: 1120 [2024-10-24 18:34:19,927 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 18:34:19,927 INFO L432 NwaCegarLoop]: 916 mSDtfsCounter, 0 mSDsluCounter, 1829 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2745 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 18:34:19,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2745 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 18:34:19,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2024-10-24 18:34:19,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 1120. [2024-10-24 18:34:19,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1120 states, 657 states have (on average 1.9710806697108068) internal successors, (1295), 1108 states have internal predecessors, (1295), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2024-10-24 18:34:19,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 1342 transitions. [2024-10-24 18:34:19,950 INFO L78 Accepts]: Start accepts. Automaton has 1120 states and 1342 transitions. Word has length 64 [2024-10-24 18:34:19,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:34:19,951 INFO L471 AbstractCegarLoop]: Abstraction has 1120 states and 1342 transitions. [2024-10-24 18:34:19,951 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 18:34:19,951 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states and 1342 transitions. [2024-10-24 18:34:19,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-24 18:34:19,952 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:34:19,952 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 18:34:19,963 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 18:34:20,152 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 18:34:20,153 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-10-24 18:34:20,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:34:20,153 INFO L85 PathProgramCache]: Analyzing trace with hash -980471432, now seen corresponding path program 1 times [2024-10-24 18:34:20,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:34:20,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [255296799] [2024-10-24 18:34:20,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:34:20,154 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 18:34:20,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:34:20,155 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 18:34:20,156 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 18:34:20,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:34:20,483 INFO L255 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 18:34:20,485 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:34:20,510 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 18:34:20,510 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 18:34:20,583 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 18:34:20,584 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:34:20,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [255296799] [2024-10-24 18:34:20,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [255296799] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 18:34:20,584 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 18:34:20,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-10-24 18:34:20,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653633168] [2024-10-24 18:34:20,584 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 18:34:20,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 18:34:20,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:34:20,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 18:34:20,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-24 18:34:20,590 INFO L87 Difference]: Start difference. First operand 1120 states and 1342 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 18:34:22,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:34:22,003 INFO L93 Difference]: Finished difference Result 1129 states and 1356 transitions. [2024-10-24 18:34:22,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 18:34:22,004 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 18:34:22,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:34:22,007 INFO L225 Difference]: With dead ends: 1129 [2024-10-24 18:34:22,008 INFO L226 Difference]: Without dead ends: 1129 [2024-10-24 18:34:22,008 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 18:34:22,009 INFO L432 NwaCegarLoop]: 915 mSDtfsCounter, 4 mSDsluCounter, 4566 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 5481 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-24 18:34:22,009 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 5481 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-24 18:34:22,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1129 states. [2024-10-24 18:34:22,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1129 to 1128. [2024-10-24 18:34:22,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1128 states, 664 states have (on average 1.9698795180722892) internal successors, (1308), 1115 states have internal predecessors, (1308), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2024-10-24 18:34:22,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 1355 transitions. [2024-10-24 18:34:22,028 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 1355 transitions. Word has length 65 [2024-10-24 18:34:22,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:34:22,029 INFO L471 AbstractCegarLoop]: Abstraction has 1128 states and 1355 transitions. [2024-10-24 18:34:22,029 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 18:34:22,029 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 1355 transitions. [2024-10-24 18:34:22,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-24 18:34:22,030 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:34:22,030 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 18:34:22,040 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 18:34:22,230 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 18:34:22,230 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-10-24 18:34:22,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:34:22,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1477386369, now seen corresponding path program 2 times [2024-10-24 18:34:22,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:34:22,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1357755070] [2024-10-24 18:34:22,231 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 18:34:22,232 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 18:34:22,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:34:22,233 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 18:34:22,234 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 18:34:22,696 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 18:34:22,697 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 18:34:22,711 INFO L255 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-24 18:34:22,713 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:34:22,756 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 18:34:22,756 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 18:34:22,886 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 18:34:22,886 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:34:22,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1357755070] [2024-10-24 18:34:22,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1357755070] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 18:34:22,887 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 18:34:22,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-10-24 18:34:22,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928182708] [2024-10-24 18:34:22,887 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 18:34:22,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 18:34:22,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:34:22,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 18:34:22,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-10-24 18:34:22,889 INFO L87 Difference]: Start difference. First operand 1128 states and 1355 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 18:34:24,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:34:24,668 INFO L93 Difference]: Finished difference Result 1140 states and 1374 transitions. [2024-10-24 18:34:24,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-24 18:34:24,670 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 18:34:24,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:34:24,673 INFO L225 Difference]: With dead ends: 1140 [2024-10-24 18:34:24,678 INFO L226 Difference]: Without dead ends: 1138 [2024-10-24 18:34:24,679 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 18:34:24,679 INFO L432 NwaCegarLoop]: 915 mSDtfsCounter, 7 mSDsluCounter, 5482 mSDsCounter, 0 mSdLazyCounter, 890 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 6397 SdHoareTripleChecker+Invalid, 898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-24 18:34:24,679 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 6397 Invalid, 898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 890 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-24 18:34:24,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1138 states. [2024-10-24 18:34:24,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1138 to 1137. [2024-10-24 18:34:24,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1137 states, 673 states have (on average 1.9613670133729568) internal successors, (1320), 1124 states have internal predecessors, (1320), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2024-10-24 18:34:24,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1137 states to 1137 states and 1367 transitions. [2024-10-24 18:34:24,696 INFO L78 Accepts]: Start accepts. Automaton has 1137 states and 1367 transitions. Word has length 68 [2024-10-24 18:34:24,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:34:24,697 INFO L471 AbstractCegarLoop]: Abstraction has 1137 states and 1367 transitions. [2024-10-24 18:34:24,697 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 18:34:24,697 INFO L276 IsEmpty]: Start isEmpty. Operand 1137 states and 1367 transitions. [2024-10-24 18:34:24,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-24 18:34:24,698 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:34:24,698 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 18:34:24,709 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 (20)] Forceful destruction successful, exit code 0 [2024-10-24 18:34:24,898 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 18:34:24,898 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-10-24 18:34:24,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:34:24,899 INFO L85 PathProgramCache]: Analyzing trace with hash -226382559, now seen corresponding path program 3 times [2024-10-24 18:34:24,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:34:24,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [865091494] [2024-10-24 18:34:24,900 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-24 18:34:24,900 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 18:34:24,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:34:24,903 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 18:34:24,904 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 18:34:25,515 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-10-24 18:34:25,515 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 18:34:25,529 INFO L255 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-24 18:34:25,531 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:34:25,645 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 18:34:25,645 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 18:34:26,118 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 18:34:26,119 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:34:26,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [865091494] [2024-10-24 18:34:26,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [865091494] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 18:34:26,119 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 18:34:26,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-10-24 18:34:26,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684519051] [2024-10-24 18:34:26,119 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 18:34:26,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-24 18:34:26,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:34:26,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-24 18:34:26,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-10-24 18:34:26,121 INFO L87 Difference]: Start difference. First operand 1137 states and 1367 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 18:34:30,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:34:30,477 INFO L93 Difference]: Finished difference Result 1158 states and 1403 transitions. [2024-10-24 18:34:30,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-10-24 18:34:30,478 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 18:34:30,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:34:30,482 INFO L225 Difference]: With dead ends: 1158 [2024-10-24 18:34:30,482 INFO L226 Difference]: Without dead ends: 1155 [2024-10-24 18:34:30,483 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2024-10-24 18:34:30,483 INFO L432 NwaCegarLoop]: 915 mSDtfsCounter, 14 mSDsluCounter, 10965 mSDsCounter, 0 mSdLazyCounter, 1910 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 11880 SdHoareTripleChecker+Invalid, 1933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-10-24 18:34:30,483 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 11880 Invalid, 1933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1910 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-10-24 18:34:30,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2024-10-24 18:34:30,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 1155. [2024-10-24 18:34:30,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1155 states, 691 states have (on average 1.9435600578871202) internal successors, (1343), 1142 states have internal predecessors, (1343), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2024-10-24 18:34:30,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 1390 transitions. [2024-10-24 18:34:30,500 INFO L78 Accepts]: Start accepts. Automaton has 1155 states and 1390 transitions. Word has length 74 [2024-10-24 18:34:30,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:34:30,501 INFO L471 AbstractCegarLoop]: Abstraction has 1155 states and 1390 transitions. [2024-10-24 18:34:30,501 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 18:34:30,501 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states and 1390 transitions. [2024-10-24 18:34:30,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-24 18:34:30,502 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:34:30,502 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 18:34:30,515 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2024-10-24 18:34:30,702 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 18:34:30,703 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-10-24 18:34:30,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:34:30,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1599807903, now seen corresponding path program 4 times [2024-10-24 18:34:30,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:34:30,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1276412336] [2024-10-24 18:34:30,704 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-24 18:34:30,704 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 18:34:30,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:34:30,705 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 18:34:30,706 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 18:34:31,211 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-24 18:34:31,211 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 18:34:31,227 INFO L255 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-10-24 18:34:31,230 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:34:31,564 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 18:34:31,564 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 18:34:32,771 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 18:34:32,771 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:34:32,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1276412336] [2024-10-24 18:34:32,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1276412336] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 18:34:32,772 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 18:34:32,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2024-10-24 18:34:32,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824405239] [2024-10-24 18:34:32,772 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 18:34:32,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-10-24 18:34:32,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:34:32,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-10-24 18:34:32,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2024-10-24 18:34:32,775 INFO L87 Difference]: Start difference. First operand 1155 states and 1390 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 18:34:42,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:34:42,240 INFO L93 Difference]: Finished difference Result 1192 states and 1459 transitions. [2024-10-24 18:34:42,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-10-24 18:34:42,242 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 18:34:42,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:34:42,245 INFO L225 Difference]: With dead ends: 1192 [2024-10-24 18:34:42,245 INFO L226 Difference]: Without dead ends: 1190 [2024-10-24 18:34:42,247 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=2713, Invalid=5843, Unknown=0, NotChecked=0, Total=8556 [2024-10-24 18:34:42,248 INFO L432 NwaCegarLoop]: 915 mSDtfsCounter, 26 mSDsluCounter, 21022 mSDsCounter, 0 mSdLazyCounter, 4357 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 21937 SdHoareTripleChecker+Invalid, 4405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 4357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2024-10-24 18:34:42,248 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 21937 Invalid, 4405 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [48 Valid, 4357 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2024-10-24 18:34:42,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1190 states. [2024-10-24 18:34:42,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1190 to 1189. [2024-10-24 18:34:42,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1189 states, 725 states have (on average 1.9158620689655173) internal successors, (1389), 1176 states have internal predecessors, (1389), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2024-10-24 18:34:42,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1189 states to 1189 states and 1436 transitions. [2024-10-24 18:34:42,264 INFO L78 Accepts]: Start accepts. Automaton has 1189 states and 1436 transitions. Word has length 86 [2024-10-24 18:34:42,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:34:42,264 INFO L471 AbstractCegarLoop]: Abstraction has 1189 states and 1436 transitions. [2024-10-24 18:34:42,264 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 18:34:42,264 INFO L276 IsEmpty]: Start isEmpty. Operand 1189 states and 1436 transitions. [2024-10-24 18:34:42,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-10-24 18:34:42,265 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:34:42,265 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 18:34:42,280 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 (22)] Ended with exit code 0 [2024-10-24 18:34:42,466 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 18:34:42,466 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-10-24 18:34:42,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:34:42,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1895196159, now seen corresponding path program 5 times [2024-10-24 18:34:42,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:34:42,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [619824002] [2024-10-24 18:34:42,467 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-24 18:34:42,467 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 18:34:42,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:34:42,471 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 18:34:42,473 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 18:34:43,606 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2024-10-24 18:34:43,606 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 18:34:43,630 INFO L255 TraceCheckSpWp]: Trace formula consists of 809 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-10-24 18:34:43,637 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:34:43,642 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 18:34:43,730 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-10-24 18:34:43,730 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 18:34:43,759 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 18:34:43,825 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 18:34:44,893 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-10-24 18:34:44,894 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 18:34:44,947 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 18:34:44,985 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 18:34:44,986 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 18:34:45,345 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:34:45,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [619824002] [2024-10-24 18:34:45,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [619824002] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 18:34:45,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1778202541] [2024-10-24 18:34:45,345 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-24 18:34:45,345 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-10-24 18:34:45,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-10-24 18:34:45,347 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-10-24 18:34:45,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process