./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_SAX_test10-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test10-2.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 22840dbbc7fdeff8c5ae44a2e4ee4ab6a60b4cab9f47ba8847305b912adb9a2c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 19:17:03,239 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 19:17:03,283 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-11 19:17:03,289 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 19:17:03,290 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 19:17:03,308 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 19:17:03,308 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 19:17:03,308 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 19:17:03,309 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 19:17:03,309 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 19:17:03,309 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 19:17:03,309 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 19:17:03,310 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 19:17:03,310 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 19:17:03,310 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 19:17:03,310 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 19:17:03,310 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 19:17:03,311 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 19:17:03,311 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 19:17:03,311 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 19:17:03,311 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 19:17:03,315 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 19:17:03,315 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 19:17:03,315 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 19:17:03,317 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 19:17:03,317 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 19:17:03,318 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 19:17:03,318 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 19:17:03,318 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 19:17:03,318 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 19:17:03,318 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 19:17:03,318 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 19:17:03,319 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 19:17:03,319 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:17:03,319 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 19:17:03,319 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 19:17:03,319 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 19:17:03,319 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 19:17:03,319 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 19:17:03,319 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 19:17:03,320 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 19:17:03,320 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 19:17:03,320 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22840dbbc7fdeff8c5ae44a2e4ee4ab6a60b4cab9f47ba8847305b912adb9a2c [2024-10-11 19:17:03,543 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 19:17:03,558 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 19:17:03,561 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 19:17:03,562 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 19:17:03,562 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 19:17:03,563 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test10-2.i [2024-10-11 19:17:04,768 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 19:17:05,015 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 19:17:05,016 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test10-2.i [2024-10-11 19:17:05,038 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/8819bfb9b/d5bb5a8bbe2d4b388c1eda4177e0fb44/FLAG1dae2b67e [2024-10-11 19:17:05,321 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/8819bfb9b/d5bb5a8bbe2d4b388c1eda4177e0fb44 [2024-10-11 19:17:05,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 19:17:05,324 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 19:17:05,325 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 19:17:05,325 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 19:17:05,329 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 19:17:05,330 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:17:05" (1/1) ... [2024-10-11 19:17:05,330 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16aa9772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:17:05, skipping insertion in model container [2024-10-11 19:17:05,332 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:17:05" (1/1) ... [2024-10-11 19:17:05,377 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:17:05,879 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:17:05,891 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) [2024-10-11 19:17:05,891 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@347cb009 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:17:05, skipping insertion in model container [2024-10-11 19:17:05,892 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 19:17:05,892 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-10-11 19:17:05,893 INFO L158 Benchmark]: Toolchain (without parser) took 568.97ms. Allocated memory is still 182.5MB. Free memory was 146.6MB in the beginning and 115.7MB in the end (delta: 31.0MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-10-11 19:17:05,894 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 109.1MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 19:17:05,894 INFO L158 Benchmark]: CACSL2BoogieTranslator took 567.23ms. Allocated memory is still 182.5MB. Free memory was 146.6MB in the beginning and 115.7MB in the end (delta: 31.0MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-10-11 19:17:05,895 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 109.1MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 567.23ms. Allocated memory is still 182.5MB. Free memory was 146.6MB in the beginning and 115.7MB in the end (delta: 31.0MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 734]: 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-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test10-2.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 22840dbbc7fdeff8c5ae44a2e4ee4ab6a60b4cab9f47ba8847305b912adb9a2c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 19:17:07,438 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 19:17:07,496 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-10-11 19:17:07,503 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 19:17:07,503 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 19:17:07,526 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 19:17:07,528 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 19:17:07,528 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 19:17:07,529 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 19:17:07,530 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 19:17:07,531 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 19:17:07,531 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 19:17:07,531 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 19:17:07,532 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 19:17:07,532 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 19:17:07,532 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 19:17:07,534 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 19:17:07,535 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 19:17:07,535 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 19:17:07,535 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 19:17:07,535 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 19:17:07,535 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 19:17:07,535 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 19:17:07,536 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 19:17:07,536 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 19:17:07,536 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-11 19:17:07,536 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 19:17:07,536 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-11 19:17:07,536 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 19:17:07,537 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 19:17:07,537 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 19:17:07,538 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 19:17:07,538 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 19:17:07,538 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 19:17:07,538 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 19:17:07,539 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:17:07,539 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 19:17:07,539 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 19:17:07,540 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-11 19:17:07,540 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-11 19:17:07,540 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 19:17:07,540 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 19:17:07,540 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 19:17:07,540 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 19:17:07,540 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-11 19:17:07,541 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22840dbbc7fdeff8c5ae44a2e4ee4ab6a60b4cab9f47ba8847305b912adb9a2c [2024-10-11 19:17:07,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 19:17:07,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 19:17:07,807 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 19:17:07,808 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 19:17:07,809 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 19:17:07,810 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test10-2.i [2024-10-11 19:17:09,063 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 19:17:09,339 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 19:17:09,340 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test10-2.i [2024-10-11 19:17:09,360 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/792fdb757/9e68ae4a526f493d949fbf34ac668a8f/FLAG4de2b6eed [2024-10-11 19:17:09,620 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/792fdb757/9e68ae4a526f493d949fbf34ac668a8f [2024-10-11 19:17:09,622 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 19:17:09,623 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 19:17:09,624 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 19:17:09,624 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 19:17:09,629 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 19:17:09,630 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:17:09" (1/1) ... [2024-10-11 19:17:09,631 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a852356 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:17:09, skipping insertion in model container [2024-10-11 19:17:09,631 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:17:09" (1/1) ... [2024-10-11 19:17:09,671 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:17:10,219 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:17:10,232 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-10-11 19:17:10,247 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:17:10,335 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:17:10,338 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 19:17:10,413 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:17:10,443 INFO L204 MainTranslator]: Completed translation [2024-10-11 19:17:10,444 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:17:10 WrapperNode [2024-10-11 19:17:10,444 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 19:17:10,445 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 19:17:10,445 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 19:17:10,445 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 19:17:10,450 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:17:10" (1/1) ... [2024-10-11 19:17:10,489 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:17:10" (1/1) ... [2024-10-11 19:17:10,572 INFO L138 Inliner]: procedures = 180, calls = 558, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2439 [2024-10-11 19:17:10,573 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 19:17:10,574 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 19:17:10,575 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 19:17:10,575 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 19:17:10,583 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:17:10" (1/1) ... [2024-10-11 19:17:10,584 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:17:10" (1/1) ... [2024-10-11 19:17:10,599 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:17:10" (1/1) ... [2024-10-11 19:17:10,735 INFO L175 MemorySlicer]: Split 528 memory accesses to 3 slices as follows [2, 420, 106]. 80 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 94 writes are split as follows [0, 90, 4]. [2024-10-11 19:17:10,736 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:17:10" (1/1) ... [2024-10-11 19:17:10,736 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:17:10" (1/1) ... [2024-10-11 19:17:10,780 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:17:10" (1/1) ... [2024-10-11 19:17:10,799 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:17:10" (1/1) ... [2024-10-11 19:17:10,805 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:17:10" (1/1) ... [2024-10-11 19:17:10,814 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:17:10" (1/1) ... [2024-10-11 19:17:10,829 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 19:17:10,830 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 19:17:10,830 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 19:17:10,830 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 19:17:10,831 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:17:10" (1/1) ... [2024-10-11 19:17:10,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:17:10,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:17:10,857 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 19:17:10,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 19:17:10,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-10-11 19:17:10,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-10-11 19:17:10,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-10-11 19:17:10,894 INFO L130 BoogieDeclarations]: Found specification of procedure test_int_int [2024-10-11 19:17:10,895 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int_int [2024-10-11 19:17:10,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-11 19:17:10,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-11 19:17:10,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-11 19:17:10,895 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-11 19:17:10,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-11 19:17:10,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-10-11 19:17:10,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-10-11 19:17:10,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-10-11 19:17:10,895 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-10-11 19:17:10,895 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-10-11 19:17:10,896 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-10-11 19:17:10,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-11 19:17:10,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 19:17:10,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-11 19:17:10,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-11 19:17:10,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-11 19:17:10,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 19:17:10,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-11 19:17:10,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-11 19:17:10,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-11 19:17:10,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 19:17:10,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-11 19:17:10,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-11 19:17:10,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-11 19:17:10,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-11 19:17:10,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-11 19:17:10,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-11 19:17:10,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 19:17:10,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 19:17:11,144 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 19:17:11,146 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 19:17:11,202 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-11 19:17:11,230 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-11 19:17:11,250 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-11 19:17:16,222 INFO L? ?]: Removed 2232 outVars from TransFormulas that were not future-live. [2024-10-11 19:17:16,222 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 19:17:16,432 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 19:17:16,433 INFO L314 CfgBuilder]: Removed 160 assume(true) statements. [2024-10-11 19:17:16,433 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:17:16 BoogieIcfgContainer [2024-10-11 19:17:16,433 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 19:17:16,436 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 19:17:16,436 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 19:17:16,438 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 19:17:16,438 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 07:17:09" (1/3) ... [2024-10-11 19:17:16,439 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2518b64b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:17:16, skipping insertion in model container [2024-10-11 19:17:16,439 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:17:10" (2/3) ... [2024-10-11 19:17:16,440 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2518b64b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:17:16, skipping insertion in model container [2024-10-11 19:17:16,440 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:17:16" (3/3) ... [2024-10-11 19:17:16,441 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test10-2.i [2024-10-11 19:17:16,455 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 19:17:16,456 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1091 error locations. [2024-10-11 19:17:16,521 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 19:17:16,527 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;@22d586af, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 19:17:16,527 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1091 error locations. [2024-10-11 19:17:16,533 INFO L276 IsEmpty]: Start isEmpty. Operand has 2060 states, 957 states have (on average 2.456635318704284) internal successors, (2351), 2046 states have internal predecessors, (2351), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-11 19:17:16,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-10-11 19:17:16,538 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:17:16,538 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-10-11 19:17:16,539 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-10-11 19:17:16,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:17:16,542 INFO L85 PathProgramCache]: Analyzing trace with hash 119657, now seen corresponding path program 1 times [2024-10-11 19:17:16,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:17:16,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2057867849] [2024-10-11 19:17:16,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:17:16,551 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 [2024-10-11 19:17:16,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:17:16,553 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:17:16,553 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:17:16,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:17:16,728 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 19:17:16,732 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:17:16,764 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 [2024-10-11 19:17:16,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:17:16,775 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:17:16,776 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:17:16,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2057867849] [2024-10-11 19:17:16,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2057867849] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:17:16,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:17:16,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 19:17:16,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823906112] [2024-10-11 19:17:16,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:17:16,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:17:16,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:17:16,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:17:16,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:17:16,862 INFO L87 Difference]: Start difference. First operand has 2060 states, 957 states have (on average 2.456635318704284) internal successors, (2351), 2046 states have internal predecessors, (2351), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) 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) [2024-10-11 19:17:19,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:17:19,577 INFO L93 Difference]: Finished difference Result 2659 states and 2843 transitions. [2024-10-11 19:17:19,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:17:19,581 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 [2024-10-11 19:17:19,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:17:19,610 INFO L225 Difference]: With dead ends: 2659 [2024-10-11 19:17:19,610 INFO L226 Difference]: Without dead ends: 2658 [2024-10-11 19:17:19,612 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 [2024-10-11 19:17:19,616 INFO L432 NwaCegarLoop]: 1167 mSDtfsCounter, 1946 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 1492 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1956 SdHoareTripleChecker+Valid, 1561 SdHoareTripleChecker+Invalid, 1517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-10-11 19:17:19,617 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1956 Valid, 1561 Invalid, 1517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1492 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-10-11 19:17:19,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2658 states. [2024-10-11 19:17:19,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2658 to 2169. [2024-10-11 19:17:19,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2169 states, 1094 states have (on average 2.257769652650823) internal successors, (2470), 2153 states have internal predecessors, (2470), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-11 19:17:19,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2169 states to 2169 states and 2502 transitions. [2024-10-11 19:17:19,720 INFO L78 Accepts]: Start accepts. Automaton has 2169 states and 2502 transitions. Word has length 2 [2024-10-11 19:17:19,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:17:19,720 INFO L471 AbstractCegarLoop]: Abstraction has 2169 states and 2502 transitions. [2024-10-11 19:17:19,720 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) [2024-10-11 19:17:19,721 INFO L276 IsEmpty]: Start isEmpty. Operand 2169 states and 2502 transitions. [2024-10-11 19:17:19,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-10-11 19:17:19,722 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:17:19,722 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-10-11 19:17:19,725 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:17:19,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:17:19,923 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-10-11 19:17:19,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:17:19,924 INFO L85 PathProgramCache]: Analyzing trace with hash 119658, now seen corresponding path program 1 times [2024-10-11 19:17:19,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:17:19,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1648217656] [2024-10-11 19:17:19,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:17:19,924 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 [2024-10-11 19:17:19,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:17:19,927 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:17:19,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:17:20,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:17:20,049 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 19:17:20,055 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:17:20,062 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 [2024-10-11 19:17:20,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:17:20,071 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:17:20,071 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:17:20,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1648217656] [2024-10-11 19:17:20,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1648217656] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:17:20,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:17:20,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 19:17:20,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749276137] [2024-10-11 19:17:20,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:17:20,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:17:20,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:17:20,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:17:20,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:17:20,074 INFO L87 Difference]: Start difference. First operand 2169 states and 2502 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) [2024-10-11 19:17:23,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:17:23,392 INFO L93 Difference]: Finished difference Result 2894 states and 3307 transitions. [2024-10-11 19:17:23,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:17:23,393 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 [2024-10-11 19:17:23,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:17:23,400 INFO L225 Difference]: With dead ends: 2894 [2024-10-11 19:17:23,400 INFO L226 Difference]: Without dead ends: 2894 [2024-10-11 19:17:23,400 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 [2024-10-11 19:17:23,402 INFO L432 NwaCegarLoop]: 1683 mSDtfsCounter, 799 mSDsluCounter, 1094 mSDsCounter, 0 mSdLazyCounter, 1565 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 802 SdHoareTripleChecker+Valid, 2777 SdHoareTripleChecker+Invalid, 1576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-10-11 19:17:23,402 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [802 Valid, 2777 Invalid, 1576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1565 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-10-11 19:17:23,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2894 states. [2024-10-11 19:17:23,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2894 to 2566. [2024-10-11 19:17:23,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2566 states, 1489 states have (on average 2.19543317662861) internal successors, (3269), 2547 states have internal predecessors, (3269), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-11 19:17:23,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2566 states to 2566 states and 3307 transitions. [2024-10-11 19:17:23,451 INFO L78 Accepts]: Start accepts. Automaton has 2566 states and 3307 transitions. Word has length 2 [2024-10-11 19:17:23,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:17:23,451 INFO L471 AbstractCegarLoop]: Abstraction has 2566 states and 3307 transitions. [2024-10-11 19:17:23,452 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) [2024-10-11 19:17:23,452 INFO L276 IsEmpty]: Start isEmpty. Operand 2566 states and 3307 transitions. [2024-10-11 19:17:23,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-11 19:17:23,452 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:17:23,453 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-11 19:17:23,456 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-10-11 19:17:23,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:17:23,654 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-10-11 19:17:23,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:17:23,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1162343629, now seen corresponding path program 1 times [2024-10-11 19:17:23,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:17:23,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [437964482] [2024-10-11 19:17:23,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:17:23,655 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 [2024-10-11 19:17:23,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:17:23,658 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:17:23,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:17:23,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:17:23,787 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 19:17:23,789 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:17:23,800 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 [2024-10-11 19:17:23,805 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 [2024-10-11 19:17:23,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 19:17:23,857 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 [2024-10-11 19:17:23,871 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-11 19:17:23,872 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 [2024-10-11 19:17:23,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:17:23,894 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:17:23,894 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:17:23,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [437964482] [2024-10-11 19:17:23,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [437964482] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:17:23,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:17:23,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:17:23,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425638056] [2024-10-11 19:17:23,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:17:23,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:17:23,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:17:23,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:17:23,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:17:23,898 INFO L87 Difference]: Start difference. First operand 2566 states and 3307 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) [2024-10-11 19:17:29,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:17:29,032 INFO L93 Difference]: Finished difference Result 4608 states and 5499 transitions. [2024-10-11 19:17:29,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:17:29,032 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 [2024-10-11 19:17:29,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:17:29,044 INFO L225 Difference]: With dead ends: 4608 [2024-10-11 19:17:29,044 INFO L226 Difference]: Without dead ends: 4608 [2024-10-11 19:17:29,045 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 [2024-10-11 19:17:29,047 INFO L432 NwaCegarLoop]: 760 mSDtfsCounter, 3927 mSDsluCounter, 1173 mSDsCounter, 0 mSdLazyCounter, 2804 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3936 SdHoareTripleChecker+Valid, 1933 SdHoareTripleChecker+Invalid, 2844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-10-11 19:17:29,049 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3936 Valid, 1933 Invalid, 2844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2804 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-10-11 19:17:29,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4608 states. [2024-10-11 19:17:29,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4608 to 3140. [2024-10-11 19:17:29,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3140 states, 2063 states have (on average 2.243819680077557) internal successors, (4629), 3115 states have internal predecessors, (4629), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-11 19:17:29,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3140 states to 3140 states and 4679 transitions. [2024-10-11 19:17:29,103 INFO L78 Accepts]: Start accepts. Automaton has 3140 states and 4679 transitions. Word has length 6 [2024-10-11 19:17:29,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:17:29,103 INFO L471 AbstractCegarLoop]: Abstraction has 3140 states and 4679 transitions. [2024-10-11 19:17:29,104 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) [2024-10-11 19:17:29,106 INFO L276 IsEmpty]: Start isEmpty. Operand 3140 states and 4679 transitions. [2024-10-11 19:17:29,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-11 19:17:29,107 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:17:29,107 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:17:29,114 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:17:29,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:17:29,308 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-10-11 19:17:29,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:17:29,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1672914111, now seen corresponding path program 1 times [2024-10-11 19:17:29,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:17:29,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1932001909] [2024-10-11 19:17:29,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:17:29,309 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 [2024-10-11 19:17:29,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:17:29,311 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:17:29,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:17:29,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:17:29,446 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 19:17:29,448 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:17:29,451 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 [2024-10-11 19:17:29,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:17:29,462 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:17:29,462 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:17:29,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1932001909] [2024-10-11 19:17:29,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1932001909] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:17:29,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:17:29,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:17:29,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352292730] [2024-10-11 19:17:29,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:17:29,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:17:29,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:17:29,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:17:29,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:17:29,463 INFO L87 Difference]: Start difference. First operand 3140 states and 4679 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) [2024-10-11 19:17:31,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:17:31,552 INFO L93 Difference]: Finished difference Result 3776 states and 5273 transitions. [2024-10-11 19:17:31,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:17:31,552 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 [2024-10-11 19:17:31,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:17:31,562 INFO L225 Difference]: With dead ends: 3776 [2024-10-11 19:17:31,562 INFO L226 Difference]: Without dead ends: 3776 [2024-10-11 19:17:31,562 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 [2024-10-11 19:17:31,562 INFO L432 NwaCegarLoop]: 1839 mSDtfsCounter, 1726 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 1613 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1736 SdHoareTripleChecker+Valid, 2417 SdHoareTripleChecker+Invalid, 1712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-11 19:17:31,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1736 Valid, 2417 Invalid, 1712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1613 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-11 19:17:31,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3776 states. [2024-10-11 19:17:31,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3776 to 3048. [2024-10-11 19:17:31,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3048 states, 2063 states have (on average 2.1396025206010663) internal successors, (4414), 3023 states have internal predecessors, (4414), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-11 19:17:31,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3048 states to 3048 states and 4464 transitions. [2024-10-11 19:17:31,606 INFO L78 Accepts]: Start accepts. Automaton has 3048 states and 4464 transitions. Word has length 7 [2024-10-11 19:17:31,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:17:31,607 INFO L471 AbstractCegarLoop]: Abstraction has 3048 states and 4464 transitions. [2024-10-11 19:17:31,607 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) [2024-10-11 19:17:31,608 INFO L276 IsEmpty]: Start isEmpty. Operand 3048 states and 4464 transitions. [2024-10-11 19:17:31,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-11 19:17:31,610 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:17:31,610 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:17:31,614 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:17:31,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:17:31,813 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-10-11 19:17:31,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:17:31,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1672914110, now seen corresponding path program 1 times [2024-10-11 19:17:31,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:17:31,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [841786989] [2024-10-11 19:17:31,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:17:31,814 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 [2024-10-11 19:17:31,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:17:31,817 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:17:31,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:17:31,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:17:31,961 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 19:17:31,963 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:17:31,968 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 [2024-10-11 19:17:31,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:17:31,987 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:17:31,987 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:17:31,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [841786989] [2024-10-11 19:17:31,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [841786989] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:17:31,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:17:31,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:17:31,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923752721] [2024-10-11 19:17:31,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:17:31,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:17:31,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:17:31,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:17:31,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:17:31,988 INFO L87 Difference]: Start difference. First operand 3048 states and 4464 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) [2024-10-11 19:17:35,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:17:35,157 INFO L93 Difference]: Finished difference Result 4617 states and 6688 transitions. [2024-10-11 19:17:35,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:17:35,158 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 [2024-10-11 19:17:35,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:17:35,167 INFO L225 Difference]: With dead ends: 4617 [2024-10-11 19:17:35,167 INFO L226 Difference]: Without dead ends: 4617 [2024-10-11 19:17:35,167 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 [2024-10-11 19:17:35,168 INFO L432 NwaCegarLoop]: 2133 mSDtfsCounter, 1285 mSDsluCounter, 915 mSDsCounter, 0 mSdLazyCounter, 1741 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1289 SdHoareTripleChecker+Valid, 3048 SdHoareTripleChecker+Invalid, 1766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-10-11 19:17:35,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1289 Valid, 3048 Invalid, 1766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1741 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-10-11 19:17:35,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4617 states. [2024-10-11 19:17:35,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4617 to 3316. [2024-10-11 19:17:35,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3316 states, 2341 states have (on average 2.126441691584793) internal successors, (4978), 3291 states have internal predecessors, (4978), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-11 19:17:35,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3316 states to 3316 states and 5028 transitions. [2024-10-11 19:17:35,214 INFO L78 Accepts]: Start accepts. Automaton has 3316 states and 5028 transitions. Word has length 7 [2024-10-11 19:17:35,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:17:35,214 INFO L471 AbstractCegarLoop]: Abstraction has 3316 states and 5028 transitions. [2024-10-11 19:17:35,214 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) [2024-10-11 19:17:35,214 INFO L276 IsEmpty]: Start isEmpty. Operand 3316 states and 5028 transitions. [2024-10-11 19:17:35,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-11 19:17:35,214 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:17:35,215 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:17:35,218 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:17:35,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:17:35,415 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr638REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-10-11 19:17:35,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:17:35,416 INFO L85 PathProgramCache]: Analyzing trace with hash -286775368, now seen corresponding path program 1 times [2024-10-11 19:17:35,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:17:35,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1454827656] [2024-10-11 19:17:35,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:17:35,416 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 [2024-10-11 19:17:35,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:17:35,419 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:17:35,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:17:35,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:17:35,536 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-11 19:17:35,538 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:17:35,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:17:35,548 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:17:35,548 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:17:35,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1454827656] [2024-10-11 19:17:35,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1454827656] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:17:35,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:17:35,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:17:35,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227647090] [2024-10-11 19:17:35,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:17:35,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:17:35,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:17:35,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:17:35,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:17:35,549 INFO L87 Difference]: Start difference. First operand 3316 states and 5028 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2024-10-11 19:17:36,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:17:36,291 INFO L93 Difference]: Finished difference Result 3262 states and 4948 transitions. [2024-10-11 19:17:36,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:17:36,294 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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 [2024-10-11 19:17:36,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:17:36,301 INFO L225 Difference]: With dead ends: 3262 [2024-10-11 19:17:36,301 INFO L226 Difference]: Without dead ends: 3262 [2024-10-11 19:17:36,302 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 [2024-10-11 19:17:36,302 INFO L432 NwaCegarLoop]: 1805 mSDtfsCounter, 61 mSDsluCounter, 1763 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 3568 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-11 19:17:36,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 3568 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-11 19:17:36,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3262 states. [2024-10-11 19:17:36,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3262 to 3262. [2024-10-11 19:17:36,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3262 states, 2311 states have (on average 2.119428818693206) internal successors, (4898), 3237 states have internal predecessors, (4898), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-11 19:17:36,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3262 states to 3262 states and 4948 transitions. [2024-10-11 19:17:36,335 INFO L78 Accepts]: Start accepts. Automaton has 3262 states and 4948 transitions. Word has length 10 [2024-10-11 19:17:36,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:17:36,335 INFO L471 AbstractCegarLoop]: Abstraction has 3262 states and 4948 transitions. [2024-10-11 19:17:36,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2024-10-11 19:17:36,336 INFO L276 IsEmpty]: Start isEmpty. Operand 3262 states and 4948 transitions. [2024-10-11 19:17:36,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-11 19:17:36,336 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:17:36,336 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:17:36,339 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:17:36,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:17:36,538 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr662REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-10-11 19:17:36,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:17:36,538 INFO L85 PathProgramCache]: Analyzing trace with hash -713168110, now seen corresponding path program 1 times [2024-10-11 19:17:36,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:17:36,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1636112169] [2024-10-11 19:17:36,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:17:36,539 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 [2024-10-11 19:17:36,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:17:36,540 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:17:36,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:17:36,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:17:36,663 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 19:17:36,665 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:17:36,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:17:36,678 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:17:36,678 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:17:36,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1636112169] [2024-10-11 19:17:36,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1636112169] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:17:36,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:17:36,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:17:36,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566735187] [2024-10-11 19:17:36,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:17:36,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:17:36,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:17:36,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:17:36,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:17:36,679 INFO L87 Difference]: Start difference. First operand 3262 states and 4948 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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) [2024-10-11 19:17:37,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:17:37,725 INFO L93 Difference]: Finished difference Result 3246 states and 4904 transitions. [2024-10-11 19:17:37,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:17:37,726 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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 [2024-10-11 19:17:37,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:17:37,734 INFO L225 Difference]: With dead ends: 3246 [2024-10-11 19:17:37,734 INFO L226 Difference]: Without dead ends: 3246 [2024-10-11 19:17:37,735 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:17:37,735 INFO L432 NwaCegarLoop]: 1774 mSDtfsCounter, 45 mSDsluCounter, 3530 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 5304 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-11 19:17:37,736 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 5304 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-11 19:17:37,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3246 states. [2024-10-11 19:17:37,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3246 to 3246. [2024-10-11 19:17:37,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3246 states, 2309 states have (on average 2.1022087483759204) internal successors, (4854), 3221 states have internal predecessors, (4854), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-11 19:17:37,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3246 states to 3246 states and 4904 transitions. [2024-10-11 19:17:37,773 INFO L78 Accepts]: Start accepts. Automaton has 3246 states and 4904 transitions. Word has length 12 [2024-10-11 19:17:37,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:17:37,773 INFO L471 AbstractCegarLoop]: Abstraction has 3246 states and 4904 transitions. [2024-10-11 19:17:37,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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) [2024-10-11 19:17:37,773 INFO L276 IsEmpty]: Start isEmpty. Operand 3246 states and 4904 transitions. [2024-10-11 19:17:37,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-11 19:17:37,774 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:17:37,774 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:17:37,780 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:17:37,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:17:37,975 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr324REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-10-11 19:17:37,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:17:37,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1884128953, now seen corresponding path program 1 times [2024-10-11 19:17:37,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:17:37,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1080127606] [2024-10-11 19:17:37,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:17:37,976 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 [2024-10-11 19:17:37,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:17:37,979 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:17:37,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:17:38,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:17:38,165 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-11 19:17:38,166 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:17:38,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:17:38,179 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:17:38,179 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:17:38,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1080127606] [2024-10-11 19:17:38,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1080127606] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:17:38,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:17:38,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:17:38,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30961946] [2024-10-11 19:17:38,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:17:38,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:17:38,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:17:38,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:17:38,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:17:38,180 INFO L87 Difference]: Start difference. First operand 3246 states and 4904 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 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) [2024-10-11 19:17:38,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:17:38,935 INFO L93 Difference]: Finished difference Result 3132 states and 4664 transitions. [2024-10-11 19:17:38,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:17:38,936 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 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 [2024-10-11 19:17:38,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:17:38,947 INFO L225 Difference]: With dead ends: 3132 [2024-10-11 19:17:38,947 INFO L226 Difference]: Without dead ends: 3132 [2024-10-11 19:17:38,947 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:17:38,948 INFO L432 NwaCegarLoop]: 1747 mSDtfsCounter, 61 mSDsluCounter, 1705 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 3452 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-11 19:17:38,948 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 3452 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-11 19:17:38,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3132 states. [2024-10-11 19:17:38,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3132 to 3132. [2024-10-11 19:17:38,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3132 states, 2219 states have (on average 2.079315006759802) internal successors, (4614), 3107 states have internal predecessors, (4614), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-11 19:17:38,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 4664 transitions. [2024-10-11 19:17:38,984 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 4664 transitions. Word has length 17 [2024-10-11 19:17:38,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:17:38,985 INFO L471 AbstractCegarLoop]: Abstraction has 3132 states and 4664 transitions. [2024-10-11 19:17:38,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 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) [2024-10-11 19:17:38,985 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 4664 transitions. [2024-10-11 19:17:38,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-11 19:17:38,986 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:17:38,986 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:17:38,990 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:17:39,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:17:39,187 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-10-11 19:17:39,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:17:39,187 INFO L85 PathProgramCache]: Analyzing trace with hash -2141973639, now seen corresponding path program 1 times [2024-10-11 19:17:39,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:17:39,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [711047337] [2024-10-11 19:17:39,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:17:39,188 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 [2024-10-11 19:17:39,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:17:39,189 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:17:39,189 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:17:39,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:17:39,359 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-11 19:17:39,361 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:17:39,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:17:39,369 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:17:39,369 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:17:39,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [711047337] [2024-10-11 19:17:39,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [711047337] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:17:39,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:17:39,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:17:39,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446283629] [2024-10-11 19:17:39,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:17:39,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:17:39,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:17:39,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:17:39,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:17:39,371 INFO L87 Difference]: Start difference. First operand 3132 states and 4664 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 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) [2024-10-11 19:17:40,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:17:40,109 INFO L93 Difference]: Finished difference Result 3078 states and 4584 transitions. [2024-10-11 19:17:40,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:17:40,109 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 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 [2024-10-11 19:17:40,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:17:40,114 INFO L225 Difference]: With dead ends: 3078 [2024-10-11 19:17:40,114 INFO L226 Difference]: Without dead ends: 3078 [2024-10-11 19:17:40,114 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:17:40,114 INFO L432 NwaCegarLoop]: 1710 mSDtfsCounter, 61 mSDsluCounter, 1668 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 3378 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-11 19:17:40,114 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 3378 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-11 19:17:40,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3078 states. [2024-10-11 19:17:40,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3078 to 3078. [2024-10-11 19:17:40,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3078 states, 2189 states have (on average 2.0712654179990864) internal successors, (4534), 3053 states have internal predecessors, (4534), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-11 19:17:40,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3078 states to 3078 states and 4584 transitions. [2024-10-11 19:17:40,149 INFO L78 Accepts]: Start accepts. Automaton has 3078 states and 4584 transitions. Word has length 17 [2024-10-11 19:17:40,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:17:40,149 INFO L471 AbstractCegarLoop]: Abstraction has 3078 states and 4584 transitions. [2024-10-11 19:17:40,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 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) [2024-10-11 19:17:40,149 INFO L276 IsEmpty]: Start isEmpty. Operand 3078 states and 4584 transitions. [2024-10-11 19:17:40,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-11 19:17:40,150 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:17:40,150 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:17:40,155 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:17:40,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:17:40,350 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr348REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-10-11 19:17:40,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:17:40,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1828249453, now seen corresponding path program 1 times [2024-10-11 19:17:40,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:17:40,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1539701421] [2024-10-11 19:17:40,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:17:40,351 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:17:40,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:17:40,353 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:17:40,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:17:40,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:17:40,510 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 19:17:40,512 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:17:40,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:17:40,526 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:17:40,527 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:17:40,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1539701421] [2024-10-11 19:17:40,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1539701421] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:17:40,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:17:40,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:17:40,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726423647] [2024-10-11 19:17:40,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:17:40,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:17:40,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:17:40,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:17:40,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:17:40,528 INFO L87 Difference]: Start difference. First operand 3078 states and 4584 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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) [2024-10-11 19:17:41,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:17:41,467 INFO L93 Difference]: Finished difference Result 3058 states and 4452 transitions. [2024-10-11 19:17:41,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:17:41,468 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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 19 [2024-10-11 19:17:41,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:17:41,472 INFO L225 Difference]: With dead ends: 3058 [2024-10-11 19:17:41,473 INFO L226 Difference]: Without dead ends: 3058 [2024-10-11 19:17:41,473 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:17:41,473 INFO L432 NwaCegarLoop]: 1679 mSDtfsCounter, 45 mSDsluCounter, 3340 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 5019 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-11 19:17:41,473 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 5019 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-11 19:17:41,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3058 states. [2024-10-11 19:17:41,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3058 to 3058. [2024-10-11 19:17:41,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3058 states, 2183 states have (on average 2.016491067338525) internal successors, (4402), 3033 states have internal predecessors, (4402), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-11 19:17:41,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3058 states to 3058 states and 4452 transitions. [2024-10-11 19:17:41,506 INFO L78 Accepts]: Start accepts. Automaton has 3058 states and 4452 transitions. Word has length 19 [2024-10-11 19:17:41,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:17:41,506 INFO L471 AbstractCegarLoop]: Abstraction has 3058 states and 4452 transitions. [2024-10-11 19:17:41,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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) [2024-10-11 19:17:41,506 INFO L276 IsEmpty]: Start isEmpty. Operand 3058 states and 4452 transitions. [2024-10-11 19:17:41,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-11 19:17:41,507 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:17:41,507 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:17:41,512 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2024-10-11 19:17:41,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:17:41,711 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr40REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-10-11 19:17:41,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:17:41,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1147334253, now seen corresponding path program 1 times [2024-10-11 19:17:41,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:17:41,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [362257451] [2024-10-11 19:17:41,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:17:41,712 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:17:41,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:17:41,713 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:17:41,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:17:41,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:17:41,881 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 19:17:41,883 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:17:41,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:17:41,894 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:17:41,894 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:17:41,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [362257451] [2024-10-11 19:17:41,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [362257451] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:17:41,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:17:41,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:17:41,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314513577] [2024-10-11 19:17:41,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:17:41,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:17:41,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:17:41,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:17:41,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:17:41,896 INFO L87 Difference]: Start difference. First operand 3058 states and 4452 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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) [2024-10-11 19:17:42,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:17:42,793 INFO L93 Difference]: Finished difference Result 3042 states and 4408 transitions. [2024-10-11 19:17:42,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:17:42,794 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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 19 [2024-10-11 19:17:42,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:17:42,798 INFO L225 Difference]: With dead ends: 3042 [2024-10-11 19:17:42,798 INFO L226 Difference]: Without dead ends: 3042 [2024-10-11 19:17:42,798 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:17:42,799 INFO L432 NwaCegarLoop]: 1658 mSDtfsCounter, 45 mSDsluCounter, 3298 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 4956 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-11 19:17:42,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 4956 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-11 19:17:42,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3042 states. [2024-10-11 19:17:42,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3042 to 3042. [2024-10-11 19:17:42,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3042 states, 2181 states have (on average 1.9981659789087574) internal successors, (4358), 3017 states have internal predecessors, (4358), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-11 19:17:42,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3042 states to 3042 states and 4408 transitions. [2024-10-11 19:17:42,820 INFO L78 Accepts]: Start accepts. Automaton has 3042 states and 4408 transitions. Word has length 19 [2024-10-11 19:17:42,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:17:42,820 INFO L471 AbstractCegarLoop]: Abstraction has 3042 states and 4408 transitions. [2024-10-11 19:17:42,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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) [2024-10-11 19:17:42,820 INFO L276 IsEmpty]: Start isEmpty. Operand 3042 states and 4408 transitions. [2024-10-11 19:17:42,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-11 19:17:42,821 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:17:42,821 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] [2024-10-11 19:17:42,826 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:17:43,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:17:43,022 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr676REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-10-11 19:17:43,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:17:43,022 INFO L85 PathProgramCache]: Analyzing trace with hash 303308928, now seen corresponding path program 1 times [2024-10-11 19:17:43,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:17:43,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [81043115] [2024-10-11 19:17:43,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:17:43,022 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 [2024-10-11 19:17:43,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:17:43,024 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:17:43,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:17:43,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:17:43,147 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 19:17:43,149 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:17:43,152 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 [2024-10-11 19:17:43,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:17:43,209 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:17:43,209 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:17:43,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [81043115] [2024-10-11 19:17:43,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [81043115] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:17:43,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:17:43,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:17:43,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095643130] [2024-10-11 19:17:43,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:17:43,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:17:43,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:17:43,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:17:43,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:17:43,211 INFO L87 Difference]: Start difference. First operand 3042 states and 4408 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2024-10-11 19:17:45,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:17:45,475 INFO L93 Difference]: Finished difference Result 3460 states and 4733 transitions. [2024-10-11 19:17:45,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:17:45,476 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 26 [2024-10-11 19:17:45,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:17:45,480 INFO L225 Difference]: With dead ends: 3460 [2024-10-11 19:17:45,481 INFO L226 Difference]: Without dead ends: 3460 [2024-10-11 19:17:45,481 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:17:45,481 INFO L432 NwaCegarLoop]: 1048 mSDtfsCounter, 1666 mSDsluCounter, 1306 mSDsCounter, 0 mSdLazyCounter, 2106 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1676 SdHoareTripleChecker+Valid, 2354 SdHoareTripleChecker+Invalid, 2117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-11 19:17:45,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1676 Valid, 2354 Invalid, 2117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2106 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-11 19:17:45,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3460 states. [2024-10-11 19:17:45,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3460 to 3038. [2024-10-11 19:17:45,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3038 states, 2181 states have (on average 1.9944979367262723) internal successors, (4350), 3013 states have internal predecessors, (4350), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-11 19:17:45,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3038 states to 3038 states and 4400 transitions. [2024-10-11 19:17:45,506 INFO L78 Accepts]: Start accepts. Automaton has 3038 states and 4400 transitions. Word has length 26 [2024-10-11 19:17:45,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:17:45,507 INFO L471 AbstractCegarLoop]: Abstraction has 3038 states and 4400 transitions. [2024-10-11 19:17:45,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2024-10-11 19:17:45,508 INFO L276 IsEmpty]: Start isEmpty. Operand 3038 states and 4400 transitions. [2024-10-11 19:17:45,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-11 19:17:45,510 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:17:45,510 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] [2024-10-11 19:17:45,514 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:17:45,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:17:45,711 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr677REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-10-11 19:17:45,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:17:45,711 INFO L85 PathProgramCache]: Analyzing trace with hash 303308929, now seen corresponding path program 1 times [2024-10-11 19:17:45,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:17:45,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [314667967] [2024-10-11 19:17:45,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:17:45,711 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:17:45,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:17:45,712 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:17:45,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:17:45,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:17:45,846 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 19:17:45,848 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:17:45,855 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 [2024-10-11 19:17:45,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:17:45,950 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:17:45,950 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:17:45,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [314667967] [2024-10-11 19:17:45,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [314667967] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:17:45,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:17:45,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:17:45,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961924156] [2024-10-11 19:17:45,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:17:45,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:17:45,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:17:45,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:17:45,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:17:45,951 INFO L87 Difference]: Start difference. First operand 3038 states and 4400 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2024-10-11 19:17:49,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:17:49,117 INFO L93 Difference]: Finished difference Result 3706 states and 5140 transitions. [2024-10-11 19:17:49,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:17:49,117 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 26 [2024-10-11 19:17:49,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:17:49,122 INFO L225 Difference]: With dead ends: 3706 [2024-10-11 19:17:49,122 INFO L226 Difference]: Without dead ends: 3706 [2024-10-11 19:17:49,122 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:17:49,123 INFO L432 NwaCegarLoop]: 1435 mSDtfsCounter, 737 mSDsluCounter, 1814 mSDsCounter, 0 mSdLazyCounter, 2335 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 740 SdHoareTripleChecker+Valid, 3249 SdHoareTripleChecker+Invalid, 2338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-10-11 19:17:49,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [740 Valid, 3249 Invalid, 2338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2335 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-10-11 19:17:49,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3706 states. [2024-10-11 19:17:49,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3706 to 3071. [2024-10-11 19:17:49,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3071 states, 2214 states have (on average 1.98193315266486) internal successors, (4388), 3046 states have internal predecessors, (4388), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-11 19:17:49,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3071 states to 3071 states and 4438 transitions. [2024-10-11 19:17:49,170 INFO L78 Accepts]: Start accepts. Automaton has 3071 states and 4438 transitions. Word has length 26 [2024-10-11 19:17:49,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:17:49,170 INFO L471 AbstractCegarLoop]: Abstraction has 3071 states and 4438 transitions. [2024-10-11 19:17:49,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2024-10-11 19:17:49,171 INFO L276 IsEmpty]: Start isEmpty. Operand 3071 states and 4438 transitions. [2024-10-11 19:17:49,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-10-11 19:17:49,171 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:17:49,171 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] [2024-10-11 19:17:49,177 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:17:49,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:17:49,372 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr362REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-10-11 19:17:49,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:17:49,372 INFO L85 PathProgramCache]: Analyzing trace with hash 575845249, now seen corresponding path program 1 times [2024-10-11 19:17:49,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:17:49,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [574450127] [2024-10-11 19:17:49,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:17:49,373 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 [2024-10-11 19:17:49,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:17:49,376 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:17:49,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:17:49,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:17:49,534 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 19:17:49,536 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:17:49,542 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 [2024-10-11 19:17:49,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:17:49,586 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:17:49,586 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:17:49,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [574450127] [2024-10-11 19:17:49,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [574450127] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:17:49,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:17:49,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:17:49,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262218375] [2024-10-11 19:17:49,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:17:49,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:17:49,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:17:49,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:17:49,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:17:49,588 INFO L87 Difference]: Start difference. First operand 3071 states and 4438 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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) [2024-10-11 19:17:52,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:17:52,075 INFO L93 Difference]: Finished difference Result 3724 states and 5139 transitions. [2024-10-11 19:17:52,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:17:52,076 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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 33 [2024-10-11 19:17:52,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:17:52,080 INFO L225 Difference]: With dead ends: 3724 [2024-10-11 19:17:52,081 INFO L226 Difference]: Without dead ends: 3724 [2024-10-11 19:17:52,081 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:17:52,081 INFO L432 NwaCegarLoop]: 1679 mSDtfsCounter, 1526 mSDsluCounter, 1852 mSDsCounter, 0 mSdLazyCounter, 2675 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1536 SdHoareTripleChecker+Valid, 3531 SdHoareTripleChecker+Invalid, 2686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-11 19:17:52,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1536 Valid, 3531 Invalid, 2686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2675 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-11 19:17:52,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3724 states. [2024-10-11 19:17:52,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3724 to 3067. [2024-10-11 19:17:52,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3067 states, 2214 states have (on average 1.971093044263776) internal successors, (4364), 3042 states have internal predecessors, (4364), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-11 19:17:52,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3067 states to 3067 states and 4414 transitions. [2024-10-11 19:17:52,102 INFO L78 Accepts]: Start accepts. Automaton has 3067 states and 4414 transitions. Word has length 33 [2024-10-11 19:17:52,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:17:52,103 INFO L471 AbstractCegarLoop]: Abstraction has 3067 states and 4414 transitions. [2024-10-11 19:17:52,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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) [2024-10-11 19:17:52,103 INFO L276 IsEmpty]: Start isEmpty. Operand 3067 states and 4414 transitions. [2024-10-11 19:17:52,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-10-11 19:17:52,103 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:17:52,103 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] [2024-10-11 19:17:52,108 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2024-10-11 19:17:52,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:17:52,304 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr363REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-10-11 19:17:52,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:17:52,305 INFO L85 PathProgramCache]: Analyzing trace with hash 575845250, now seen corresponding path program 1 times [2024-10-11 19:17:52,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:17:52,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [708218613] [2024-10-11 19:17:52,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:17:52,305 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 [2024-10-11 19:17:52,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:17:52,308 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:17:52,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:17:52,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:17:52,469 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 19:17:52,470 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:17:52,477 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-11 19:17:52,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:17:52,574 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:17:52,574 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:17:52,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [708218613] [2024-10-11 19:17:52,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [708218613] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:17:52,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:17:52,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:17:52,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732048570] [2024-10-11 19:17:52,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:17:52,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:17:52,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:17:52,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:17:52,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:17:52,575 INFO L87 Difference]: Start difference. First operand 3067 states and 4414 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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) [2024-10-11 19:17:56,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:17:56,306 INFO L93 Difference]: Finished difference Result 4256 states and 5942 transitions. [2024-10-11 19:17:56,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:17:56,306 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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 33 [2024-10-11 19:17:56,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:17:56,311 INFO L225 Difference]: With dead ends: 4256 [2024-10-11 19:17:56,311 INFO L226 Difference]: Without dead ends: 4256 [2024-10-11 19:17:56,311 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:17:56,312 INFO L432 NwaCegarLoop]: 1975 mSDtfsCounter, 1081 mSDsluCounter, 2187 mSDsCounter, 0 mSdLazyCounter, 2796 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1085 SdHoareTripleChecker+Valid, 4162 SdHoareTripleChecker+Invalid, 2799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-10-11 19:17:56,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1085 Valid, 4162 Invalid, 2799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2796 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-10-11 19:17:56,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4256 states. [2024-10-11 19:17:56,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4256 to 3067. [2024-10-11 19:17:56,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3067 states, 2214 states have (on average 1.967479674796748) internal successors, (4356), 3042 states have internal predecessors, (4356), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-11 19:17:56,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3067 states to 3067 states and 4406 transitions. [2024-10-11 19:17:56,340 INFO L78 Accepts]: Start accepts. Automaton has 3067 states and 4406 transitions. Word has length 33 [2024-10-11 19:17:56,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:17:56,340 INFO L471 AbstractCegarLoop]: Abstraction has 3067 states and 4406 transitions. [2024-10-11 19:17:56,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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) [2024-10-11 19:17:56,340 INFO L276 IsEmpty]: Start isEmpty. Operand 3067 states and 4406 transitions. [2024-10-11 19:17:56,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-10-11 19:17:56,341 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:17:56,341 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] [2024-10-11 19:17:56,351 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:17:56,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:17:56,541 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr54REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-10-11 19:17:56,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:17:56,542 INFO L85 PathProgramCache]: Analyzing trace with hash 601006657, now seen corresponding path program 1 times [2024-10-11 19:17:56,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:17:56,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1508286266] [2024-10-11 19:17:56,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:17:56,542 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 [2024-10-11 19:17:56,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:17:56,546 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:17:56,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:17:56,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:17:56,741 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 19:17:56,743 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:17:56,748 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 [2024-10-11 19:17:56,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:17:56,796 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:17:56,796 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:17:56,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1508286266] [2024-10-11 19:17:56,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1508286266] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:17:56,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:17:56,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:17:56,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630439294] [2024-10-11 19:17:56,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:17:56,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:17:56,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:17:56,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:17:56,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:17:56,797 INFO L87 Difference]: Start difference. First operand 3067 states and 4406 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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) [2024-10-11 19:17:59,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:17:59,551 INFO L93 Difference]: Finished difference Result 3704 states and 5107 transitions. [2024-10-11 19:17:59,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:17:59,552 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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 33 [2024-10-11 19:17:59,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:17:59,555 INFO L225 Difference]: With dead ends: 3704 [2024-10-11 19:17:59,555 INFO L226 Difference]: Without dead ends: 3704 [2024-10-11 19:17:59,555 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:17:59,556 INFO L432 NwaCegarLoop]: 1679 mSDtfsCounter, 1522 mSDsluCounter, 1852 mSDsCounter, 0 mSdLazyCounter, 2667 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1532 SdHoareTripleChecker+Valid, 3531 SdHoareTripleChecker+Invalid, 2678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-10-11 19:17:59,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1532 Valid, 3531 Invalid, 2678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2667 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-10-11 19:17:59,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3704 states. [2024-10-11 19:17:59,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3704 to 3063. [2024-10-11 19:17:59,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3063 states, 2214 states have (on average 1.96386630532972) internal successors, (4348), 3038 states have internal predecessors, (4348), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-11 19:17:59,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3063 states to 3063 states and 4398 transitions. [2024-10-11 19:17:59,582 INFO L78 Accepts]: Start accepts. Automaton has 3063 states and 4398 transitions. Word has length 33 [2024-10-11 19:17:59,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:17:59,582 INFO L471 AbstractCegarLoop]: Abstraction has 3063 states and 4398 transitions. [2024-10-11 19:17:59,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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) [2024-10-11 19:17:59,583 INFO L276 IsEmpty]: Start isEmpty. Operand 3063 states and 4398 transitions. [2024-10-11 19:17:59,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-10-11 19:17:59,583 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:17:59,583 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] [2024-10-11 19:17:59,590 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:17:59,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:17:59,784 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr55REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-10-11 19:17:59,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:17:59,785 INFO L85 PathProgramCache]: Analyzing trace with hash 601006658, now seen corresponding path program 1 times [2024-10-11 19:17:59,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:17:59,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [78157571] [2024-10-11 19:17:59,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:17:59,785 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 [2024-10-11 19:17:59,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:17:59,786 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:17:59,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:17:59,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:17:59,960 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 19:17:59,962 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:17:59,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-11 19:18:00,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:18:00,067 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:18:00,068 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:18:00,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [78157571] [2024-10-11 19:18:00,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [78157571] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:18:00,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:18:00,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:18:00,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885462080] [2024-10-11 19:18:00,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:18:00,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:18:00,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:18:00,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:18:00,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:18:00,069 INFO L87 Difference]: Start difference. First operand 3063 states and 4398 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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) [2024-10-11 19:18:04,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:18:04,161 INFO L93 Difference]: Finished difference Result 4248 states and 5926 transitions. [2024-10-11 19:18:04,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:18:04,161 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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 33 [2024-10-11 19:18:04,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:18:04,165 INFO L225 Difference]: With dead ends: 4248 [2024-10-11 19:18:04,165 INFO L226 Difference]: Without dead ends: 4248 [2024-10-11 19:18:04,165 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:18:04,166 INFO L432 NwaCegarLoop]: 1971 mSDtfsCounter, 1073 mSDsluCounter, 2156 mSDsCounter, 0 mSdLazyCounter, 2784 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1077 SdHoareTripleChecker+Valid, 4127 SdHoareTripleChecker+Invalid, 2787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2784 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-10-11 19:18:04,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1077 Valid, 4127 Invalid, 2787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2784 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-10-11 19:18:04,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4248 states. [2024-10-11 19:18:04,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4248 to 3059. [2024-10-11 19:18:04,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3059 states, 2214 states have (on average 1.960252935862692) internal successors, (4340), 3034 states have internal predecessors, (4340), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-11 19:18:04,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3059 states to 3059 states and 4390 transitions. [2024-10-11 19:18:04,188 INFO L78 Accepts]: Start accepts. Automaton has 3059 states and 4390 transitions. Word has length 33 [2024-10-11 19:18:04,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:18:04,188 INFO L471 AbstractCegarLoop]: Abstraction has 3059 states and 4390 transitions. [2024-10-11 19:18:04,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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) [2024-10-11 19:18:04,188 INFO L276 IsEmpty]: Start isEmpty. Operand 3059 states and 4390 transitions. [2024-10-11 19:18:04,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-10-11 19:18:04,188 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:18:04,188 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] [2024-10-11 19:18:04,193 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2024-10-11 19:18:04,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:18:04,389 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr684REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-10-11 19:18:04,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:18:04,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1877036666, now seen corresponding path program 1 times [2024-10-11 19:18:04,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:18:04,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1498494628] [2024-10-11 19:18:04,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:18:04,390 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 [2024-10-11 19:18:04,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:18:04,391 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:18:04,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:18:04,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:18:04,542 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 19:18:04,544 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:18:04,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:18:04,566 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:18:04,566 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:18:04,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1498494628] [2024-10-11 19:18:04,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1498494628] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:18:04,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:18:04,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:18:04,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181586099] [2024-10-11 19:18:04,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:18:04,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:18:04,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:18:04,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:18:04,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:18:04,569 INFO L87 Difference]: Start difference. First operand 3059 states and 4390 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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) [2024-10-11 19:18:05,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:18:05,518 INFO L93 Difference]: Finished difference Result 3047 states and 4366 transitions. [2024-10-11 19:18:05,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:18:05,518 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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 40 [2024-10-11 19:18:05,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:18:05,521 INFO L225 Difference]: With dead ends: 3047 [2024-10-11 19:18:05,521 INFO L226 Difference]: Without dead ends: 3047 [2024-10-11 19:18:05,522 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:18:05,522 INFO L432 NwaCegarLoop]: 1644 mSDtfsCounter, 21 mSDsluCounter, 3265 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 4909 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-11 19:18:05,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 4909 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-11 19:18:05,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3047 states. [2024-10-11 19:18:05,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3047 to 3047. [2024-10-11 19:18:05,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3047 states, 2202 states have (on average 1.9600363306085378) internal successors, (4316), 3022 states have internal predecessors, (4316), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-11 19:18:05,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3047 states to 3047 states and 4366 transitions. [2024-10-11 19:18:05,543 INFO L78 Accepts]: Start accepts. Automaton has 3047 states and 4366 transitions. Word has length 40 [2024-10-11 19:18:05,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:18:05,543 INFO L471 AbstractCegarLoop]: Abstraction has 3047 states and 4366 transitions. [2024-10-11 19:18:05,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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) [2024-10-11 19:18:05,543 INFO L276 IsEmpty]: Start isEmpty. Operand 3047 states and 4366 transitions. [2024-10-11 19:18:05,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-10-11 19:18:05,543 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:18:05,544 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] [2024-10-11 19:18:05,550 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:18:05,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:18:05,749 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr684REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-10-11 19:18:05,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:18:05,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1228682057, now seen corresponding path program 1 times [2024-10-11 19:18:05,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:18:05,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [794667935] [2024-10-11 19:18:05,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:18:05,751 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 [2024-10-11 19:18:05,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:18:05,753 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:18:05,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:18:05,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:18:05,928 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 19:18:05,930 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:18:06,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:18:06,036 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:18:06,036 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:18:06,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [794667935] [2024-10-11 19:18:06,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [794667935] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:18:06,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:18:06,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:18:06,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677428021] [2024-10-11 19:18:06,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:18:06,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:18:06,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:18:06,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:18:06,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:18:06,038 INFO L87 Difference]: Start difference. First operand 3047 states and 4366 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 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) [2024-10-11 19:18:07,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:18:07,074 INFO L93 Difference]: Finished difference Result 4508 states and 6234 transitions. [2024-10-11 19:18:07,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:18:07,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 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 44 [2024-10-11 19:18:07,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:18:07,078 INFO L225 Difference]: With dead ends: 4508 [2024-10-11 19:18:07,078 INFO L226 Difference]: Without dead ends: 4508 [2024-10-11 19:18:07,078 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:18:07,079 INFO L432 NwaCegarLoop]: 1712 mSDtfsCounter, 1175 mSDsluCounter, 1562 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1182 SdHoareTripleChecker+Valid, 3274 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-11 19:18:07,079 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1182 Valid, 3274 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-11 19:18:07,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4508 states. [2024-10-11 19:18:07,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4508 to 3928. [2024-10-11 19:18:07,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3928 states, 3076 states have (on average 1.944408322496749) internal successors, (5981), 3893 states have internal predecessors, (5981), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 32 states have call predecessors, (35), 35 states have call successors, (35) [2024-10-11 19:18:07,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3928 states to 3928 states and 6051 transitions. [2024-10-11 19:18:07,107 INFO L78 Accepts]: Start accepts. Automaton has 3928 states and 6051 transitions. Word has length 44 [2024-10-11 19:18:07,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:18:07,108 INFO L471 AbstractCegarLoop]: Abstraction has 3928 states and 6051 transitions. [2024-10-11 19:18:07,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 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) [2024-10-11 19:18:07,108 INFO L276 IsEmpty]: Start isEmpty. Operand 3928 states and 6051 transitions. [2024-10-11 19:18:07,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-11 19:18:07,108 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:18:07,109 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] [2024-10-11 19:18:07,117 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2024-10-11 19:18:07,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:18:07,309 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr427REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-10-11 19:18:07,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:18:07,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1257793787, now seen corresponding path program 1 times [2024-10-11 19:18:07,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:18:07,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [367445190] [2024-10-11 19:18:07,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:18:07,310 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 [2024-10-11 19:18:07,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:18:07,311 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:18:07,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:18:07,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:18:07,499 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 19:18:07,501 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:18:07,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:18:07,522 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:18:07,522 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:18:07,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [367445190] [2024-10-11 19:18:07,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [367445190] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:18:07,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:18:07,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:18:07,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004368267] [2024-10-11 19:18:07,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:18:07,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:18:07,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:18:07,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:18:07,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:18:07,523 INFO L87 Difference]: Start difference. First operand 3928 states and 6051 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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) [2024-10-11 19:18:08,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:18:08,417 INFO L93 Difference]: Finished difference Result 3886 states and 5981 transitions. [2024-10-11 19:18:08,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:18:08,417 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 49 [2024-10-11 19:18:08,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:18:08,421 INFO L225 Difference]: With dead ends: 3886 [2024-10-11 19:18:08,421 INFO L226 Difference]: Without dead ends: 3886 [2024-10-11 19:18:08,421 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:18:08,422 INFO L432 NwaCegarLoop]: 1640 mSDtfsCounter, 21 mSDsluCounter, 3257 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 4897 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-11 19:18:08,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 4897 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-11 19:18:08,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3886 states. [2024-10-11 19:18:08,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3886 to 3886. [2024-10-11 19:18:08,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3886 states, 3034 states have (on average 1.9482531311799605) internal successors, (5911), 3851 states have internal predecessors, (5911), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 32 states have call predecessors, (35), 35 states have call successors, (35) [2024-10-11 19:18:08,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3886 states to 3886 states and 5981 transitions. [2024-10-11 19:18:08,449 INFO L78 Accepts]: Start accepts. Automaton has 3886 states and 5981 transitions. Word has length 49 [2024-10-11 19:18:08,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:18:08,449 INFO L471 AbstractCegarLoop]: Abstraction has 3886 states and 5981 transitions. [2024-10-11 19:18:08,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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) [2024-10-11 19:18:08,449 INFO L276 IsEmpty]: Start isEmpty. Operand 3886 states and 5981 transitions. [2024-10-11 19:18:08,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-10-11 19:18:08,450 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:18:08,450 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] [2024-10-11 19:18:08,456 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:18:08,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:18:08,650 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr73REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-10-11 19:18:08,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:18:08,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1745245856, now seen corresponding path program 1 times [2024-10-11 19:18:08,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:18:08,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1017826741] [2024-10-11 19:18:08,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:18:08,651 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 [2024-10-11 19:18:08,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:18:08,652 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:18:08,654 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:18:08,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:18:08,873 INFO L255 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 19:18:08,875 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:18:08,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:18:08,897 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:18:08,897 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:18:08,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1017826741] [2024-10-11 19:18:08,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1017826741] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:18:08,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:18:08,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:18:08,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297081091] [2024-10-11 19:18:08,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:18:08,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:18:08,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:18:08,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:18:08,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:18:08,898 INFO L87 Difference]: Start difference. First operand 3886 states and 5981 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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) [2024-10-11 19:18:09,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:18:09,778 INFO L93 Difference]: Finished difference Result 3868 states and 5951 transitions. [2024-10-11 19:18:09,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:18:09,778 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 52 [2024-10-11 19:18:09,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:18:09,783 INFO L225 Difference]: With dead ends: 3868 [2024-10-11 19:18:09,783 INFO L226 Difference]: Without dead ends: 3868 [2024-10-11 19:18:09,783 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:18:09,783 INFO L432 NwaCegarLoop]: 1636 mSDtfsCounter, 15 mSDsluCounter, 3255 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 4891 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-11 19:18:09,783 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 4891 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-11 19:18:09,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3868 states. [2024-10-11 19:18:09,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3868 to 3868. [2024-10-11 19:18:09,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3868 states, 3016 states have (on average 1.9499336870026525) internal successors, (5881), 3833 states have internal predecessors, (5881), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 32 states have call predecessors, (35), 35 states have call successors, (35) [2024-10-11 19:18:09,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3868 states to 3868 states and 5951 transitions. [2024-10-11 19:18:09,810 INFO L78 Accepts]: Start accepts. Automaton has 3868 states and 5951 transitions. Word has length 52 [2024-10-11 19:18:09,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:18:09,810 INFO L471 AbstractCegarLoop]: Abstraction has 3868 states and 5951 transitions. [2024-10-11 19:18:09,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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) [2024-10-11 19:18:09,810 INFO L276 IsEmpty]: Start isEmpty. Operand 3868 states and 5951 transitions. [2024-10-11 19:18:09,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-11 19:18:09,811 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:18:09,811 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] [2024-10-11 19:18:09,817 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:18:10,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:18:10,012 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-10-11 19:18:10,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:18:10,012 INFO L85 PathProgramCache]: Analyzing trace with hash -165141037, now seen corresponding path program 1 times [2024-10-11 19:18:10,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:18:10,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [378198420] [2024-10-11 19:18:10,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:18:10,012 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 [2024-10-11 19:18:10,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:18:10,014 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:18:10,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:18:10,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:18:10,216 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 19:18:10,218 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:18:10,223 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 19:18:10,224 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 19:18:10,226 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 33 treesize of output 31 [2024-10-11 19:18:10,251 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 19:18:10,252 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 62 treesize of output 22 [2024-10-11 19:18:10,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:18:10,271 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:18:10,271 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:18:10,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [378198420] [2024-10-11 19:18:10,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [378198420] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:18:10,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:18:10,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:18:10,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504627482] [2024-10-11 19:18:10,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:18:10,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:18:10,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:18:10,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:18:10,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:18:10,272 INFO L87 Difference]: Start difference. First operand 3868 states and 5951 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:18:12,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:18:12,189 INFO L93 Difference]: Finished difference Result 5120 states and 7760 transitions. [2024-10-11 19:18:12,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:18:12,189 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-10-11 19:18:12,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:18:12,194 INFO L225 Difference]: With dead ends: 5120 [2024-10-11 19:18:12,194 INFO L226 Difference]: Without dead ends: 5120 [2024-10-11 19:18:12,195 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:18:12,195 INFO L432 NwaCegarLoop]: 1590 mSDtfsCounter, 1535 mSDsluCounter, 2549 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1544 SdHoareTripleChecker+Valid, 4139 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-11 19:18:12,195 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1544 Valid, 4139 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-11 19:18:12,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5120 states. [2024-10-11 19:18:12,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5120 to 3837. [2024-10-11 19:18:12,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3837 states, 2985 states have (on average 1.959463986599665) internal successors, (5849), 3802 states have internal predecessors, (5849), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 32 states have call predecessors, (35), 35 states have call successors, (35) [2024-10-11 19:18:12,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3837 states to 3837 states and 5919 transitions. [2024-10-11 19:18:12,225 INFO L78 Accepts]: Start accepts. Automaton has 3837 states and 5919 transitions. Word has length 55 [2024-10-11 19:18:12,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:18:12,225 INFO L471 AbstractCegarLoop]: Abstraction has 3837 states and 5919 transitions. [2024-10-11 19:18:12,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:18:12,225 INFO L276 IsEmpty]: Start isEmpty. Operand 3837 states and 5919 transitions. [2024-10-11 19:18:12,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-11 19:18:12,226 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:18:12,226 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:18:12,235 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2024-10-11 19:18:12,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:18:12,427 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr427REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-10-11 19:18:12,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:18:12,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1835739427, now seen corresponding path program 1 times [2024-10-11 19:18:12,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:18:12,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [218447653] [2024-10-11 19:18:12,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:18:12,428 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:18:12,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:18:12,429 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:18:12,429 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2024-10-11 19:18:12,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:18:12,635 INFO L255 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 19:18:12,637 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:18:12,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:18:12,767 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:18:12,767 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:18:12,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [218447653] [2024-10-11 19:18:12,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [218447653] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:18:12,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:18:12,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:18:12,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734558697] [2024-10-11 19:18:12,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:18:12,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:18:12,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:18:12,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:18:12,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:18:12,768 INFO L87 Difference]: Start difference. First operand 3837 states and 5919 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:18:13,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:18:13,641 INFO L93 Difference]: Finished difference Result 5288 states and 7837 transitions. [2024-10-11 19:18:13,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:18:13,642 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2024-10-11 19:18:13,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:18:13,647 INFO L225 Difference]: With dead ends: 5288 [2024-10-11 19:18:13,647 INFO L226 Difference]: Without dead ends: 5288 [2024-10-11 19:18:13,647 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:18:13,647 INFO L432 NwaCegarLoop]: 1936 mSDtfsCounter, 914 mSDsluCounter, 1590 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 920 SdHoareTripleChecker+Valid, 3526 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-11 19:18:13,648 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [920 Valid, 3526 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-11 19:18:13,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5288 states. [2024-10-11 19:18:13,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5288 to 4758. [2024-10-11 19:18:13,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4758 states, 3898 states have (on average 1.9304771677783479) internal successors, (7525), 4712 states have internal predecessors, (7525), 46 states have call successors, (46), 3 states have call predecessors, (46), 3 states have return successors, (46), 43 states have call predecessors, (46), 46 states have call successors, (46) [2024-10-11 19:18:13,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4758 states to 4758 states and 7617 transitions. [2024-10-11 19:18:13,682 INFO L78 Accepts]: Start accepts. Automaton has 4758 states and 7617 transitions. Word has length 53 [2024-10-11 19:18:13,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:18:13,682 INFO L471 AbstractCegarLoop]: Abstraction has 4758 states and 7617 transitions. [2024-10-11 19:18:13,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:18:13,682 INFO L276 IsEmpty]: Start isEmpty. Operand 4758 states and 7617 transitions. [2024-10-11 19:18:13,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-11 19:18:13,682 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:18:13,683 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] [2024-10-11 19:18:13,691 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2024-10-11 19:18:13,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:18:13,883 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr381REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-10-11 19:18:13,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:18:13,884 INFO L85 PathProgramCache]: Analyzing trace with hash -801247076, now seen corresponding path program 1 times [2024-10-11 19:18:13,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:18:13,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1068337118] [2024-10-11 19:18:13,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:18:13,884 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 [2024-10-11 19:18:13,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:18:13,885 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:18:13,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2024-10-11 19:18:14,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:18:14,164 INFO L255 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 19:18:14,166 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:18:14,169 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 19:18:14,170 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 19:18:14,170 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 19:18:14,171 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 [2024-10-11 19:18:14,259 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 19:18:14,259 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 [2024-10-11 19:18:14,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:18:14,267 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:18:14,267 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:18:14,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1068337118] [2024-10-11 19:18:14,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1068337118] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:18:14,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:18:14,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:18:14,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660118856] [2024-10-11 19:18:14,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:18:14,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:18:14,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:18:14,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:18:14,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:18:14,268 INFO L87 Difference]: Start difference. First operand 4758 states and 7617 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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) [2024-10-11 19:18:15,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:18:15,863 INFO L93 Difference]: Finished difference Result 5075 states and 7696 transitions. [2024-10-11 19:18:15,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:18:15,864 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 56 [2024-10-11 19:18:15,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:18:15,869 INFO L225 Difference]: With dead ends: 5075 [2024-10-11 19:18:15,869 INFO L226 Difference]: Without dead ends: 5075 [2024-10-11 19:18:15,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:18:15,869 INFO L432 NwaCegarLoop]: 1818 mSDtfsCounter, 770 mSDsluCounter, 3393 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 776 SdHoareTripleChecker+Valid, 5211 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-11 19:18:15,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [776 Valid, 5211 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 692 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-11 19:18:15,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5075 states. [2024-10-11 19:18:15,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5075 to 4390. [2024-10-11 19:18:15,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4390 states, 3530 states have (on average 1.954674220963173) internal successors, (6900), 4347 states have internal predecessors, (6900), 43 states have call successors, (43), 3 states have call predecessors, (43), 3 states have return successors, (43), 40 states have call predecessors, (43), 43 states have call successors, (43) [2024-10-11 19:18:15,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4390 states to 4390 states and 6986 transitions. [2024-10-11 19:18:15,898 INFO L78 Accepts]: Start accepts. Automaton has 4390 states and 6986 transitions. Word has length 56 [2024-10-11 19:18:15,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:18:15,899 INFO L471 AbstractCegarLoop]: Abstraction has 4390 states and 6986 transitions. [2024-10-11 19:18:15,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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) [2024-10-11 19:18:15,899 INFO L276 IsEmpty]: Start isEmpty. Operand 4390 states and 6986 transitions. [2024-10-11 19:18:15,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-11 19:18:15,899 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:18:15,899 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] [2024-10-11 19:18:15,906 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2024-10-11 19:18:16,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:18:16,100 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr73REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-10-11 19:18:16,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:18:16,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1136067489, now seen corresponding path program 1 times [2024-10-11 19:18:16,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:18:16,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1909959304] [2024-10-11 19:18:16,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:18:16,101 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 [2024-10-11 19:18:16,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:18:16,102 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:18:16,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2024-10-11 19:18:16,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:18:16,377 INFO L255 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 19:18:16,379 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:18:16,384 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 [2024-10-11 19:18:16,390 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 [2024-10-11 19:18:16,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 19:18:16,638 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 [2024-10-11 19:18:16,644 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-11 19:18:16,644 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 [2024-10-11 19:18:16,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:18:16,652 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:18:16,652 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:18:16,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1909959304] [2024-10-11 19:18:16,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1909959304] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:18:16,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:18:16,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:18:16,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231314907] [2024-10-11 19:18:16,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:18:16,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:18:16,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:18:16,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:18:16,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:18:16,653 INFO L87 Difference]: Start difference. First operand 4390 states and 6986 transitions. Second operand has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 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) [2024-10-11 19:18:18,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:18:18,796 INFO L93 Difference]: Finished difference Result 4306 states and 6743 transitions. [2024-10-11 19:18:18,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:18:18,797 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 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 56 [2024-10-11 19:18:18,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:18:18,801 INFO L225 Difference]: With dead ends: 4306 [2024-10-11 19:18:18,801 INFO L226 Difference]: Without dead ends: 4306 [2024-10-11 19:18:18,801 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:18:18,802 INFO L432 NwaCegarLoop]: 660 mSDtfsCounter, 1448 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 1400 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1458 SdHoareTripleChecker+Valid, 834 SdHoareTripleChecker+Invalid, 1491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-11 19:18:18,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1458 Valid, 834 Invalid, 1491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1400 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-11 19:18:18,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4306 states. [2024-10-11 19:18:18,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4306 to 4196. [2024-10-11 19:18:18,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4196 states, 3420 states have (on average 1.8804093567251463) internal successors, (6431), 4153 states have internal predecessors, (6431), 43 states have call successors, (43), 3 states have call predecessors, (43), 3 states have return successors, (43), 40 states have call predecessors, (43), 43 states have call successors, (43) [2024-10-11 19:18:18,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4196 states to 4196 states and 6517 transitions. [2024-10-11 19:18:18,833 INFO L78 Accepts]: Start accepts. Automaton has 4196 states and 6517 transitions. Word has length 56 [2024-10-11 19:18:18,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:18:18,833 INFO L471 AbstractCegarLoop]: Abstraction has 4196 states and 6517 transitions. [2024-10-11 19:18:18,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 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) [2024-10-11 19:18:18,833 INFO L276 IsEmpty]: Start isEmpty. Operand 4196 states and 6517 transitions. [2024-10-11 19:18:18,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-11 19:18:18,833 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:18:18,834 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] [2024-10-11 19:18:18,841 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2024-10-11 19:18:19,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:18:19,034 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-10-11 19:18:19,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:18:19,035 INFO L85 PathProgramCache]: Analyzing trace with hash -34246570, now seen corresponding path program 1 times [2024-10-11 19:18:19,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:18:19,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1703440105] [2024-10-11 19:18:19,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:18:19,035 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 [2024-10-11 19:18:19,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:18:19,036 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:18:19,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2024-10-11 19:18:19,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:18:19,278 INFO L255 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 19:18:19,280 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:18:19,286 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 [2024-10-11 19:18:19,300 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 [2024-10-11 19:18:19,318 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 [2024-10-11 19:18:19,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:18:19,326 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:18:19,326 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:18:19,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1703440105] [2024-10-11 19:18:19,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1703440105] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:18:19,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:18:19,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:18:19,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381917719] [2024-10-11 19:18:19,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:18:19,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:18:19,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:18:19,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:18:19,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:18:19,328 INFO L87 Difference]: Start difference. First operand 4196 states and 6517 transitions. Second operand has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-10-11 19:18:21,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:18:21,876 INFO L93 Difference]: Finished difference Result 4195 states and 6514 transitions. [2024-10-11 19:18:21,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 19:18:21,876 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 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 60 [2024-10-11 19:18:21,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:18:21,881 INFO L225 Difference]: With dead ends: 4195 [2024-10-11 19:18:21,881 INFO L226 Difference]: Without dead ends: 4195 [2024-10-11 19:18:21,881 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:18:21,881 INFO L432 NwaCegarLoop]: 1564 mSDtfsCounter, 2 mSDsluCounter, 2711 mSDsCounter, 0 mSdLazyCounter, 2729 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4275 SdHoareTripleChecker+Invalid, 2730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-11 19:18:21,881 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4275 Invalid, 2730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2729 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-11 19:18:21,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4195 states. [2024-10-11 19:18:21,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4195 to 4195. [2024-10-11 19:18:21,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4195 states, 3420 states have (on average 1.87953216374269) internal successors, (6428), 4152 states have internal predecessors, (6428), 43 states have call successors, (43), 3 states have call predecessors, (43), 3 states have return successors, (43), 40 states have call predecessors, (43), 43 states have call successors, (43) [2024-10-11 19:18:21,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4195 states to 4195 states and 6514 transitions. [2024-10-11 19:18:21,917 INFO L78 Accepts]: Start accepts. Automaton has 4195 states and 6514 transitions. Word has length 60 [2024-10-11 19:18:21,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:18:21,917 INFO L471 AbstractCegarLoop]: Abstraction has 4195 states and 6514 transitions. [2024-10-11 19:18:21,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-10-11 19:18:21,918 INFO L276 IsEmpty]: Start isEmpty. Operand 4195 states and 6514 transitions. [2024-10-11 19:18:21,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-11 19:18:21,918 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:18:21,918 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] [2024-10-11 19:18:21,925 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2024-10-11 19:18:22,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:18:22,119 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr79REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-10-11 19:18:22,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:18:22,119 INFO L85 PathProgramCache]: Analyzing trace with hash -34246569, now seen corresponding path program 1 times [2024-10-11 19:18:22,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:18:22,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1365520108] [2024-10-11 19:18:22,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:18:22,120 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 [2024-10-11 19:18:22,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:18:22,121 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:18:22,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2024-10-11 19:18:22,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:18:22,350 INFO L255 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-11 19:18:22,353 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:18:22,361 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 [2024-10-11 19:18:22,373 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 [2024-10-11 19:18:22,375 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 [2024-10-11 19:18:22,399 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 [2024-10-11 19:18:22,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:18:22,409 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:18:22,409 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:18:22,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1365520108] [2024-10-11 19:18:22,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1365520108] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:18:22,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:18:22,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:18:22,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251695419] [2024-10-11 19:18:22,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:18:22,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:18:22,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:18:22,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:18:22,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:18:22,410 INFO L87 Difference]: Start difference. First operand 4195 states and 6514 transitions. Second operand has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-10-11 19:18:25,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:18:25,779 INFO L93 Difference]: Finished difference Result 4194 states and 6511 transitions. [2024-10-11 19:18:25,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 19:18:25,779 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 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 60 [2024-10-11 19:18:25,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:18:25,783 INFO L225 Difference]: With dead ends: 4194 [2024-10-11 19:18:25,783 INFO L226 Difference]: Without dead ends: 4194 [2024-10-11 19:18:25,784 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:18:25,784 INFO L432 NwaCegarLoop]: 1564 mSDtfsCounter, 1 mSDsluCounter, 2675 mSDsCounter, 0 mSdLazyCounter, 2762 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4239 SdHoareTripleChecker+Invalid, 2763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-10-11 19:18:25,784 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4239 Invalid, 2763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2762 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-10-11 19:18:25,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4194 states. [2024-10-11 19:18:25,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4194 to 4194. [2024-10-11 19:18:25,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4194 states, 3417 states have (on average 1.8803043605501901) internal successors, (6425), 4151 states have internal predecessors, (6425), 43 states have call successors, (43), 3 states have call predecessors, (43), 3 states have return successors, (43), 40 states have call predecessors, (43), 43 states have call successors, (43) [2024-10-11 19:18:25,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4194 states to 4194 states and 6511 transitions. [2024-10-11 19:18:25,812 INFO L78 Accepts]: Start accepts. Automaton has 4194 states and 6511 transitions. Word has length 60 [2024-10-11 19:18:25,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:18:25,813 INFO L471 AbstractCegarLoop]: Abstraction has 4194 states and 6511 transitions. [2024-10-11 19:18:25,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-10-11 19:18:25,813 INFO L276 IsEmpty]: Start isEmpty. Operand 4194 states and 6511 transitions. [2024-10-11 19:18:25,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-11 19:18:25,813 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:18:25,813 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:18:25,822 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2024-10-11 19:18:26,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:18:26,014 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr82REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-10-11 19:18:26,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:18:26,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1558478362, now seen corresponding path program 1 times [2024-10-11 19:18:26,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:18:26,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1951106940] [2024-10-11 19:18:26,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:18:26,015 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 [2024-10-11 19:18:26,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:18:26,017 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:18:26,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2024-10-11 19:18:26,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:18:26,263 INFO L255 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 19:18:26,265 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:18:26,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:18:26,275 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:18:26,276 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:18:26,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1951106940] [2024-10-11 19:18:26,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1951106940] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:18:26,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:18:26,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:18:26,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383739063] [2024-10-11 19:18:26,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:18:26,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:18:26,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:18:26,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:18:26,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:18:26,277 INFO L87 Difference]: Start difference. First operand 4194 states and 6511 transitions. Second operand has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 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) [2024-10-11 19:18:27,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:18:27,181 INFO L93 Difference]: Finished difference Result 4196 states and 6518 transitions. [2024-10-11 19:18:27,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:18:27,181 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 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 66 [2024-10-11 19:18:27,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:18:27,187 INFO L225 Difference]: With dead ends: 4196 [2024-10-11 19:18:27,187 INFO L226 Difference]: Without dead ends: 4196 [2024-10-11 19:18:27,187 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:18:27,188 INFO L432 NwaCegarLoop]: 1563 mSDtfsCounter, 0 mSDsluCounter, 3120 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4683 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-11 19:18:27,188 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4683 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-11 19:18:27,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4196 states. [2024-10-11 19:18:27,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4196 to 4196. [2024-10-11 19:18:27,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4196 states, 3418 states have (on average 1.8803393797542423) internal successors, (6427), 4153 states have internal predecessors, (6427), 43 states have call successors, (43), 3 states have call predecessors, (43), 4 states have return successors, (48), 40 states have call predecessors, (48), 43 states have call successors, (48) [2024-10-11 19:18:27,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4196 states to 4196 states and 6518 transitions. [2024-10-11 19:18:27,225 INFO L78 Accepts]: Start accepts. Automaton has 4196 states and 6518 transitions. Word has length 66 [2024-10-11 19:18:27,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:18:27,225 INFO L471 AbstractCegarLoop]: Abstraction has 4196 states and 6518 transitions. [2024-10-11 19:18:27,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 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) [2024-10-11 19:18:27,225 INFO L276 IsEmpty]: Start isEmpty. Operand 4196 states and 6518 transitions. [2024-10-11 19:18:27,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-11 19:18:27,226 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:18:27,226 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:18:27,233 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2024-10-11 19:18:27,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:18:27,426 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr82REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-10-11 19:18:27,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:18:27,427 INFO L85 PathProgramCache]: Analyzing trace with hash 115889589, now seen corresponding path program 1 times [2024-10-11 19:18:27,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:18:27,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1993643037] [2024-10-11 19:18:27,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:18:27,427 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 [2024-10-11 19:18:27,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:18:27,428 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:18:27,429 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2024-10-11 19:18:27,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:18:27,668 INFO L255 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 19:18:27,670 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:18:27,682 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:18:27,682 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 19:18:27,722 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:18:27,722 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:18:27,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1993643037] [2024-10-11 19:18:27,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1993643037] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 19:18:27,722 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 19:18:27,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-10-11 19:18:27,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374682226] [2024-10-11 19:18:27,722 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 19:18:27,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 19:18:27,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:18:27,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 19:18:27,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-11 19:18:27,723 INFO L87 Difference]: Start difference. First operand 4196 states and 6518 transitions. Second operand has 8 states, 6 states have (on average 11.333333333333334) internal successors, (68), 8 states have internal predecessors, (68), 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) [2024-10-11 19:18:29,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:18:29,195 INFO L93 Difference]: Finished difference Result 4205 states and 6536 transitions. [2024-10-11 19:18:29,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 19:18:29,195 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 11.333333333333334) internal successors, (68), 8 states have internal predecessors, (68), 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 67 [2024-10-11 19:18:29,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:18:29,202 INFO L225 Difference]: With dead ends: 4205 [2024-10-11 19:18:29,202 INFO L226 Difference]: Without dead ends: 4205 [2024-10-11 19:18:29,202 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-10-11 19:18:29,202 INFO L432 NwaCegarLoop]: 1561 mSDtfsCounter, 4 mSDsluCounter, 6230 mSDsCounter, 0 mSdLazyCounter, 989 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7791 SdHoareTripleChecker+Invalid, 999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-11 19:18:29,202 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 7791 Invalid, 999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 989 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-11 19:18:29,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4205 states. [2024-10-11 19:18:29,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4205 to 4204. [2024-10-11 19:18:29,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4204 states, 3425 states have (on average 1.8802919708029198) internal successors, (6440), 4160 states have internal predecessors, (6440), 43 states have call successors, (43), 4 states have call predecessors, (43), 5 states have return successors, (48), 40 states have call predecessors, (48), 43 states have call successors, (48) [2024-10-11 19:18:29,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4204 states to 4204 states and 6531 transitions. [2024-10-11 19:18:29,235 INFO L78 Accepts]: Start accepts. Automaton has 4204 states and 6531 transitions. Word has length 67 [2024-10-11 19:18:29,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:18:29,236 INFO L471 AbstractCegarLoop]: Abstraction has 4204 states and 6531 transitions. [2024-10-11 19:18:29,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 11.333333333333334) internal successors, (68), 8 states have internal predecessors, (68), 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) [2024-10-11 19:18:29,236 INFO L276 IsEmpty]: Start isEmpty. Operand 4204 states and 6531 transitions. [2024-10-11 19:18:29,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-10-11 19:18:29,236 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:18:29,236 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:18:29,246 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Ended with exit code 0 [2024-10-11 19:18:29,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:18:29,437 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr82REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-10-11 19:18:29,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:18:29,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1427436326, now seen corresponding path program 2 times [2024-10-11 19:18:29,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:18:29,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [307058293] [2024-10-11 19:18:29,438 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 19:18:29,438 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 [2024-10-11 19:18:29,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:18:29,439 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:18:29,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2024-10-11 19:18:29,814 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 19:18:29,815 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 19:18:29,825 INFO L255 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 19:18:29,826 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:18:29,875 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:18:29,875 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 19:18:29,987 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:18:29,987 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:18:29,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [307058293] [2024-10-11 19:18:29,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [307058293] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 19:18:29,988 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 19:18:29,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-10-11 19:18:29,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468187232] [2024-10-11 19:18:29,988 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 19:18:29,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-11 19:18:29,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:18:29,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-11 19:18:29,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-10-11 19:18:29,989 INFO L87 Difference]: Start difference. First operand 4204 states and 6531 transitions. Second operand has 14 states, 12 states have (on average 6.166666666666667) internal successors, (74), 14 states have internal predecessors, (74), 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) [2024-10-11 19:18:32,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:18:32,332 INFO L93 Difference]: Finished difference Result 4216 states and 6549 transitions. [2024-10-11 19:18:32,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-11 19:18:32,332 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 6.166666666666667) internal successors, (74), 14 states have internal predecessors, (74), 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 70 [2024-10-11 19:18:32,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:18:32,338 INFO L225 Difference]: With dead ends: 4216 [2024-10-11 19:18:32,338 INFO L226 Difference]: Without dead ends: 4213 [2024-10-11 19:18:32,338 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2024-10-11 19:18:32,339 INFO L432 NwaCegarLoop]: 1561 mSDtfsCounter, 7 mSDsluCounter, 9346 mSDsCounter, 0 mSdLazyCounter, 1489 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 10907 SdHoareTripleChecker+Invalid, 1500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-11 19:18:32,339 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 10907 Invalid, 1500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1489 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-11 19:18:32,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4213 states. [2024-10-11 19:18:32,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4213 to 4213. [2024-10-11 19:18:32,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4213 states, 3434 states have (on average 1.878567268491555) internal successors, (6451), 4169 states have internal predecessors, (6451), 43 states have call successors, (43), 4 states have call predecessors, (43), 5 states have return successors, (48), 40 states have call predecessors, (48), 43 states have call successors, (48) [2024-10-11 19:18:32,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4213 states to 4213 states and 6542 transitions. [2024-10-11 19:18:32,373 INFO L78 Accepts]: Start accepts. Automaton has 4213 states and 6542 transitions. Word has length 70 [2024-10-11 19:18:32,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:18:32,373 INFO L471 AbstractCegarLoop]: Abstraction has 4213 states and 6542 transitions. [2024-10-11 19:18:32,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 6.166666666666667) internal successors, (74), 14 states have internal predecessors, (74), 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) [2024-10-11 19:18:32,373 INFO L276 IsEmpty]: Start isEmpty. Operand 4213 states and 6542 transitions. [2024-10-11 19:18:32,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-11 19:18:32,374 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:18:32,374 INFO L215 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:18:32,383 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2024-10-11 19:18:32,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:18:32,575 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr82REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-10-11 19:18:32,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:18:32,575 INFO L85 PathProgramCache]: Analyzing trace with hash 386780922, now seen corresponding path program 3 times [2024-10-11 19:18:32,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:18:32,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [492878907] [2024-10-11 19:18:32,576 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 19:18:32,576 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 [2024-10-11 19:18:32,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:18:32,577 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:18:32,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2024-10-11 19:18:33,121 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-10-11 19:18:33,121 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 19:18:33,132 INFO L255 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 19:18:33,134 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:18:33,233 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:18:33,233 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 19:18:33,620 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:18:33,621 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:18:33,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [492878907] [2024-10-11 19:18:33,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [492878907] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 19:18:33,621 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 19:18:33,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-10-11 19:18:33,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418946152] [2024-10-11 19:18:33,621 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 19:18:33,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-11 19:18:33,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:18:33,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-11 19:18:33,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-10-11 19:18:33,623 INFO L87 Difference]: Start difference. First operand 4213 states and 6542 transitions. Second operand has 26 states, 24 states have (on average 3.5833333333333335) internal successors, (86), 26 states have internal predecessors, (86), 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) [2024-10-11 19:18:38,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:18:38,759 INFO L93 Difference]: Finished difference Result 4234 states and 6578 transitions. [2024-10-11 19:18:38,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-10-11 19:18:38,760 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 3.5833333333333335) internal successors, (86), 26 states have internal predecessors, (86), 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 76 [2024-10-11 19:18:38,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:18:38,765 INFO L225 Difference]: With dead ends: 4234 [2024-10-11 19:18:38,765 INFO L226 Difference]: Without dead ends: 4231 [2024-10-11 19:18:38,766 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2024-10-11 19:18:38,766 INFO L432 NwaCegarLoop]: 1561 mSDtfsCounter, 13 mSDsluCounter, 23373 mSDsCounter, 0 mSdLazyCounter, 3543 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 24934 SdHoareTripleChecker+Invalid, 3558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 3543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-10-11 19:18:38,766 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 24934 Invalid, 3558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 3543 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-10-11 19:18:38,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4231 states. [2024-10-11 19:18:38,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4231 to 4231. [2024-10-11 19:18:38,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4231 states, 3452 states have (on average 1.8754345307068365) internal successors, (6474), 4187 states have internal predecessors, (6474), 43 states have call successors, (43), 4 states have call predecessors, (43), 5 states have return successors, (48), 40 states have call predecessors, (48), 43 states have call successors, (48) [2024-10-11 19:18:38,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4231 states to 4231 states and 6565 transitions. [2024-10-11 19:18:38,795 INFO L78 Accepts]: Start accepts. Automaton has 4231 states and 6565 transitions. Word has length 76 [2024-10-11 19:18:38,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:18:38,796 INFO L471 AbstractCegarLoop]: Abstraction has 4231 states and 6565 transitions. [2024-10-11 19:18:38,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 3.5833333333333335) internal successors, (86), 26 states have internal predecessors, (86), 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) [2024-10-11 19:18:38,796 INFO L276 IsEmpty]: Start isEmpty. Operand 4231 states and 6565 transitions. [2024-10-11 19:18:38,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-10-11 19:18:38,796 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:18:38,796 INFO L215 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:18:38,806 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2024-10-11 19:18:38,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:18:38,997 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr82REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-10-11 19:18:38,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:18:38,998 INFO L85 PathProgramCache]: Analyzing trace with hash -607188166, now seen corresponding path program 4 times [2024-10-11 19:18:38,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:18:38,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1794365412] [2024-10-11 19:18:38,998 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-11 19:18:38,998 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 [2024-10-11 19:18:38,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:18:39,001 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:18:39,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process