./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memcleanup.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5b41ff920513b74db566933dfdd7430dbdb0b5764645b98d18d29abf93fb4135 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 10:09:19,441 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 10:09:19,504 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-10-13 10:09:19,518 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 10:09:19,518 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 10:09:19,542 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 10:09:19,542 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 10:09:19,542 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 10:09:19,543 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 10:09:19,543 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 10:09:19,543 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 10:09:19,543 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 10:09:19,544 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 10:09:19,544 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 10:09:19,544 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 10:09:19,544 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 10:09:19,545 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 10:09:19,545 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 10:09:19,547 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 10:09:19,547 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 10:09:19,549 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 10:09:19,549 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 10:09:19,549 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-13 10:09:19,550 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-13 10:09:19,550 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 10:09:19,550 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 10:09:19,550 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-13 10:09:19,550 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 10:09:19,550 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 10:09:19,550 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 10:09:19,551 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 10:09:19,551 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 10:09:19,551 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 10:09:19,551 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 10:09:19,551 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 10:09:19,551 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 10:09:19,551 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 10:09:19,552 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 10:09:19,552 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 10:09:19,552 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 10:09:19,552 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 10:09:19,553 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 10:09:19,553 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 10:09:19,554 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 10:09:19,554 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 10:09:19,554 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b41ff920513b74db566933dfdd7430dbdb0b5764645b98d18d29abf93fb4135 [2024-10-13 10:09:19,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 10:09:19,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 10:09:19,756 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 10:09:19,756 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 10:09:19,757 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 10:09:19,758 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-2.i [2024-10-13 10:09:20,984 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 10:09:21,208 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 10:09:21,209 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-2.i [2024-10-13 10:09:21,230 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/816adc224/de4470a0ec7f42b9b51ece0ebfe7c121/FLAG294521a67 [2024-10-13 10:09:21,538 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/816adc224/de4470a0ec7f42b9b51ece0ebfe7c121 [2024-10-13 10:09:21,540 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 10:09:21,541 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 10:09:21,542 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 10:09:21,542 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 10:09:21,550 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 10:09:21,550 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:09:21" (1/1) ... [2024-10-13 10:09:21,551 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25b84aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:09:21, skipping insertion in model container [2024-10-13 10:09:21,551 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:09:21" (1/1) ... [2024-10-13 10:09:21,599 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 10:09:22,064 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 10:09:22,076 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) [2024-10-13 10:09:22,077 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@44ac6fe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:09:22, skipping insertion in model container [2024-10-13 10:09:22,077 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 10:09:22,077 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-10-13 10:09:22,079 INFO L158 Benchmark]: Toolchain (without parser) took 536.86ms. Allocated memory is still 165.7MB. Free memory was 96.0MB in the beginning and 122.5MB in the end (delta: -26.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-13 10:09:22,079 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 104.9MB. Free memory is still 70.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 10:09:22,080 INFO L158 Benchmark]: CACSL2BoogieTranslator took 535.33ms. Allocated memory is still 165.7MB. Free memory was 95.8MB in the beginning and 122.5MB in the end (delta: -26.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-13 10:09:22,081 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 104.9MB. Free memory is still 70.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 535.33ms. Allocated memory is still 165.7MB. Free memory was 95.8MB in the beginning and 122.5MB in the end (delta: -26.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 815]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5b41ff920513b74db566933dfdd7430dbdb0b5764645b98d18d29abf93fb4135 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 10:09:23,620 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 10:09:23,682 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2024-10-13 10:09:23,686 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 10:09:23,687 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 10:09:23,711 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 10:09:23,711 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 10:09:23,712 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 10:09:23,712 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 10:09:23,714 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 10:09:23,714 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 10:09:23,714 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 10:09:23,714 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 10:09:23,715 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 10:09:23,715 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 10:09:23,717 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 10:09:23,717 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 10:09:23,718 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 10:09:23,718 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 10:09:23,718 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 10:09:23,718 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 10:09:23,719 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 10:09:23,719 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-13 10:09:23,719 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-13 10:09:23,719 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 10:09:23,719 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 10:09:23,720 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-13 10:09:23,720 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-13 10:09:23,720 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 10:09:23,720 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-13 10:09:23,720 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 10:09:23,720 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 10:09:23,721 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 10:09:23,721 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 10:09:23,721 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 10:09:23,722 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 10:09:23,722 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 10:09:23,722 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 10:09:23,723 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 10:09:23,723 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 10:09:23,723 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 10:09:23,723 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-13 10:09:23,723 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-13 10:09:23,724 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 10:09:23,724 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 10:09:23,724 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 10:09:23,724 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 10:09:23,724 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-13 10:09:23,724 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b41ff920513b74db566933dfdd7430dbdb0b5764645b98d18d29abf93fb4135 [2024-10-13 10:09:23,963 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 10:09:23,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 10:09:23,984 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 10:09:23,985 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 10:09:23,985 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 10:09:23,986 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-2.i [2024-10-13 10:09:25,208 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 10:09:25,479 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 10:09:25,479 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-2.i [2024-10-13 10:09:25,499 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f510c255/d8486c239e3b4cdbb1def0504f9923c6/FLAG0b237d631 [2024-10-13 10:09:25,514 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f510c255/d8486c239e3b4cdbb1def0504f9923c6 [2024-10-13 10:09:25,516 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 10:09:25,517 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 10:09:25,518 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 10:09:25,519 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 10:09:25,523 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 10:09:25,524 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:09:25" (1/1) ... [2024-10-13 10:09:25,524 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3df8f065 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:09:25, skipping insertion in model container [2024-10-13 10:09:25,524 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:09:25" (1/1) ... [2024-10-13 10:09:25,582 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 10:09:25,992 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 10:09:26,003 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-10-13 10:09:26,016 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 10:09:26,106 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 10:09:26,113 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 10:09:26,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 10:09:26,227 INFO L204 MainTranslator]: Completed translation [2024-10-13 10:09:26,228 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:09:26 WrapperNode [2024-10-13 10:09:26,229 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 10:09:26,229 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 10:09:26,230 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 10:09:26,230 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 10:09:26,234 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:09:26" (1/1) ... [2024-10-13 10:09:26,263 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:09:26" (1/1) ... [2024-10-13 10:09:26,318 INFO L138 Inliner]: procedures = 211, calls = 280, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1063 [2024-10-13 10:09:26,322 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 10:09:26,323 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 10:09:26,323 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 10:09:26,323 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 10:09:26,335 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:09:26" (1/1) ... [2024-10-13 10:09:26,336 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:09:26" (1/1) ... [2024-10-13 10:09:26,349 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:09:26" (1/1) ... [2024-10-13 10:09:26,403 INFO L175 MemorySlicer]: Split 256 memory accesses to 3 slices as follows [2, 34, 220]. 86 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 54 writes are split as follows [0, 4, 50]. [2024-10-13 10:09:26,403 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:09:26" (1/1) ... [2024-10-13 10:09:26,404 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:09:26" (1/1) ... [2024-10-13 10:09:26,431 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:09:26" (1/1) ... [2024-10-13 10:09:26,437 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:09:26" (1/1) ... [2024-10-13 10:09:26,440 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:09:26" (1/1) ... [2024-10-13 10:09:26,443 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:09:26" (1/1) ... [2024-10-13 10:09:26,451 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 10:09:26,451 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 10:09:26,451 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 10:09:26,451 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 10:09:26,452 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:09:26" (1/1) ... [2024-10-13 10:09:26,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 10:09:26,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 10:09:26,485 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 10:09:26,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 10:09:26,520 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-10-13 10:09:26,520 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-10-13 10:09:26,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-10-13 10:09:26,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-10-13 10:09:26,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-10-13 10:09:26,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-13 10:09:26,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-13 10:09:26,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-13 10:09:26,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-10-13 10:09:26,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-10-13 10:09:26,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-10-13 10:09:26,523 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-10-13 10:09:26,523 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-10-13 10:09:26,523 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-10-13 10:09:26,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-13 10:09:26,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-13 10:09:26,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-13 10:09:26,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-13 10:09:26,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-13 10:09:26,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-13 10:09:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-13 10:09:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-13 10:09:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-13 10:09:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-13 10:09:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-13 10:09:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-13 10:09:26,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-13 10:09:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-13 10:09:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 10:09:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-13 10:09:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-13 10:09:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-13 10:09:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 10:09:26,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 10:09:26,695 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 10:09:26,696 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 10:09:33,385 INFO L? ?]: Removed 143 outVars from TransFormulas that were not future-live. [2024-10-13 10:09:33,386 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 10:09:33,415 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 10:09:33,415 INFO L314 CfgBuilder]: Removed 63 assume(true) statements. [2024-10-13 10:09:33,415 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:09:33 BoogieIcfgContainer [2024-10-13 10:09:33,415 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 10:09:33,417 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 10:09:33,417 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 10:09:33,419 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 10:09:33,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:09:25" (1/3) ... [2024-10-13 10:09:33,420 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@734260e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:09:33, skipping insertion in model container [2024-10-13 10:09:33,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:09:26" (2/3) ... [2024-10-13 10:09:33,420 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@734260e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:09:33, skipping insertion in model container [2024-10-13 10:09:33,421 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:09:33" (3/3) ... [2024-10-13 10:09:33,421 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test2-2.i [2024-10-13 10:09:33,433 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 10:09:33,433 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-13 10:09:33,469 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 10:09:33,473 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;@694f4ee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 10:09:33,474 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-13 10:09:33,477 INFO L276 IsEmpty]: Start isEmpty. Operand has 212 states, 196 states have (on average 1.6785714285714286) internal successors, (329), 205 states have internal predecessors, (329), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-13 10:09:33,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-13 10:09:33,482 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 10:09:33,482 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:09:33,483 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-13 10:09:33,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:09:33,486 INFO L85 PathProgramCache]: Analyzing trace with hash 2100239337, now seen corresponding path program 1 times [2024-10-13 10:09:33,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 10:09:33,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1246542110] [2024-10-13 10:09:33,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:09:33,495 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 [2024-10-13 10:09:33,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 10:09:33,497 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 10:09:33,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-13 10:09:33,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:09:33,666 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-13 10:09:33,672 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 10:09:33,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:09:33,680 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 10:09:33,681 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 10:09:33,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1246542110] [2024-10-13 10:09:33,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1246542110] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:09:33,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:09:33,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 10:09:33,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949155242] [2024-10-13 10:09:33,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:09:33,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 10:09:33,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 10:09:33,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 10:09:33,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 10:09:33,712 INFO L87 Difference]: Start difference. First operand has 212 states, 196 states have (on average 1.6785714285714286) internal successors, (329), 205 states have internal predecessors, (329), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:09:33,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 10:09:33,758 INFO L93 Difference]: Finished difference Result 210 states and 277 transitions. [2024-10-13 10:09:33,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 10:09:33,764 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-10-13 10:09:33,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 10:09:33,772 INFO L225 Difference]: With dead ends: 210 [2024-10-13 10:09:33,773 INFO L226 Difference]: Without dead ends: 209 [2024-10-13 10:09:33,774 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 10:09:33,778 INFO L432 NwaCegarLoop]: 272 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 10:09:33,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 272 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 10:09:33,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2024-10-13 10:09:33,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2024-10-13 10:09:33,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 195 states have (on average 1.323076923076923) internal successors, (258), 202 states have internal predecessors, (258), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-13 10:09:33,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 276 transitions. [2024-10-13 10:09:33,832 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 276 transitions. Word has length 10 [2024-10-13 10:09:33,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 10:09:33,833 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 276 transitions. [2024-10-13 10:09:33,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:09:33,833 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 276 transitions. [2024-10-13 10:09:33,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-13 10:09:33,835 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 10:09:33,835 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:09:33,840 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-10-13 10:09:34,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 10:09:34,036 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-13 10:09:34,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:09:34,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1047215673, now seen corresponding path program 1 times [2024-10-13 10:09:34,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 10:09:34,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [988762081] [2024-10-13 10:09:34,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:09:34,037 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 [2024-10-13 10:09:34,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 10:09:34,039 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 10:09:34,040 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-13 10:09:34,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:09:34,160 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 10:09:34,161 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 10:09:34,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:09:34,232 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 10:09:34,232 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 10:09:34,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [988762081] [2024-10-13 10:09:34,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [988762081] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:09:34,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:09:34,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 10:09:34,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099659891] [2024-10-13 10:09:34,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:09:34,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 10:09:34,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 10:09:34,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 10:09:34,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 10:09:34,235 INFO L87 Difference]: Start difference. First operand 209 states and 276 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 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) [2024-10-13 10:09:34,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 10:09:34,580 INFO L93 Difference]: Finished difference Result 339 states and 452 transitions. [2024-10-13 10:09:34,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 10:09:34,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 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 [2024-10-13 10:09:34,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 10:09:34,582 INFO L225 Difference]: With dead ends: 339 [2024-10-13 10:09:34,582 INFO L226 Difference]: Without dead ends: 339 [2024-10-13 10:09:34,582 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 10:09:34,583 INFO L432 NwaCegarLoop]: 260 mSDtfsCounter, 156 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 10:09:34,584 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 507 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 10:09:34,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-10-13 10:09:34,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 308. [2024-10-13 10:09:34,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 289 states have (on average 1.328719723183391) internal successors, (384), 301 states have internal predecessors, (384), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-13 10:09:34,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 412 transitions. [2024-10-13 10:09:34,611 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 412 transitions. Word has length 12 [2024-10-13 10:09:34,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 10:09:34,611 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 412 transitions. [2024-10-13 10:09:34,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 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) [2024-10-13 10:09:34,611 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 412 transitions. [2024-10-13 10:09:34,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-13 10:09:34,612 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 10:09:34,612 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:09:34,617 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-10-13 10:09:34,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 10:09:34,813 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-13 10:09:34,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:09:34,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1045368631, now seen corresponding path program 1 times [2024-10-13 10:09:34,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 10:09:34,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [91290501] [2024-10-13 10:09:34,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:09:34,814 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 [2024-10-13 10:09:34,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 10:09:34,816 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 10:09:34,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-10-13 10:09:34,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:09:34,945 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 10:09:34,947 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 10:09:34,970 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-13 10:09:34,972 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-13 10:09:34,972 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-13 10:09:34,978 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 [2024-10-13 10:09:35,029 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 10:09:35,030 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 [2024-10-13 10:09:35,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:09:35,047 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 10:09:35,048 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 10:09:35,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [91290501] [2024-10-13 10:09:35,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [91290501] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:09:35,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:09:35,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 10:09:35,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665356493] [2024-10-13 10:09:35,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:09:35,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 10:09:35,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 10:09:35,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 10:09:35,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 10:09:35,049 INFO L87 Difference]: Start difference. First operand 308 states and 412 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:09:35,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 10:09:35,473 INFO L93 Difference]: Finished difference Result 474 states and 643 transitions. [2024-10-13 10:09:35,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 10:09:35,474 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-10-13 10:09:35,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 10:09:35,475 INFO L225 Difference]: With dead ends: 474 [2024-10-13 10:09:35,476 INFO L226 Difference]: Without dead ends: 474 [2024-10-13 10:09:35,476 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 10:09:35,476 INFO L432 NwaCegarLoop]: 280 mSDtfsCounter, 239 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 802 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 10:09:35,477 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 802 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 10:09:35,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2024-10-13 10:09:35,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 307. [2024-10-13 10:09:35,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 288 states have (on average 1.3263888888888888) internal successors, (382), 300 states have internal predecessors, (382), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-13 10:09:35,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 410 transitions. [2024-10-13 10:09:35,490 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 410 transitions. Word has length 12 [2024-10-13 10:09:35,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 10:09:35,490 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 410 transitions. [2024-10-13 10:09:35,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:09:35,490 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 410 transitions. [2024-10-13 10:09:35,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-13 10:09:35,492 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 10:09:35,492 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:09:35,497 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-10-13 10:09:35,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 10:09:35,693 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-13 10:09:35,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:09:35,694 INFO L85 PathProgramCache]: Analyzing trace with hash 335054576, now seen corresponding path program 1 times [2024-10-13 10:09:35,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 10:09:35,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1299393638] [2024-10-13 10:09:35,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:09:35,695 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 [2024-10-13 10:09:35,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 10:09:35,698 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 10:09:35,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-10-13 10:09:36,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:09:36,044 INFO L255 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 10:09:36,047 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 10:09:36,070 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-13 10:09:36,070 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 10:09:36,070 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 10:09:36,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1299393638] [2024-10-13 10:09:36,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1299393638] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:09:36,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:09:36,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 10:09:36,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762314126] [2024-10-13 10:09:36,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:09:36,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 10:09:36,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 10:09:36,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 10:09:36,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 10:09:36,075 INFO L87 Difference]: Start difference. First operand 307 states and 410 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-13 10:09:36,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 10:09:36,196 INFO L93 Difference]: Finished difference Result 313 states and 400 transitions. [2024-10-13 10:09:36,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 10:09:36,197 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 81 [2024-10-13 10:09:36,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 10:09:36,198 INFO L225 Difference]: With dead ends: 313 [2024-10-13 10:09:36,198 INFO L226 Difference]: Without dead ends: 313 [2024-10-13 10:09:36,198 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 10:09:36,199 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 30 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 10:09:36,199 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 709 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 10:09:36,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-10-13 10:09:36,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2024-10-13 10:09:36,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 294 states have (on average 1.2653061224489797) internal successors, (372), 306 states have internal predecessors, (372), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-13 10:09:36,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 400 transitions. [2024-10-13 10:09:36,211 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 400 transitions. Word has length 81 [2024-10-13 10:09:36,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 10:09:36,211 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 400 transitions. [2024-10-13 10:09:36,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-13 10:09:36,211 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 400 transitions. [2024-10-13 10:09:36,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-13 10:09:36,215 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 10:09:36,215 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:09:36,226 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-10-13 10:09:36,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 10:09:36,416 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-13 10:09:36,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:09:36,417 INFO L85 PathProgramCache]: Analyzing trace with hash 411014652, now seen corresponding path program 1 times [2024-10-13 10:09:36,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 10:09:36,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1137092010] [2024-10-13 10:09:36,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:09:36,418 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 [2024-10-13 10:09:36,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 10:09:36,420 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 10:09:36,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-10-13 10:09:36,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:09:36,770 INFO L255 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 10:09:36,777 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 10:09:36,799 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:09:36,799 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 10:09:36,799 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 10:09:36,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1137092010] [2024-10-13 10:09:36,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1137092010] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:09:36,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:09:36,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 10:09:36,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598020603] [2024-10-13 10:09:36,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:09:36,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 10:09:36,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 10:09:36,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 10:09:36,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 10:09:36,801 INFO L87 Difference]: Start difference. First operand 313 states and 400 transitions. Second operand has 4 states, 3 states have (on average 25.666666666666668) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-13 10:09:36,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 10:09:36,857 INFO L93 Difference]: Finished difference Result 315 states and 403 transitions. [2024-10-13 10:09:36,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 10:09:36,858 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 25.666666666666668) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 81 [2024-10-13 10:09:36,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 10:09:36,859 INFO L225 Difference]: With dead ends: 315 [2024-10-13 10:09:36,860 INFO L226 Difference]: Without dead ends: 315 [2024-10-13 10:09:36,860 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 10:09:36,860 INFO L432 NwaCegarLoop]: 259 mSDtfsCounter, 0 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 773 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 10:09:36,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 773 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 10:09:36,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2024-10-13 10:09:36,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 315. [2024-10-13 10:09:36,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 295 states have (on average 1.2677966101694915) internal successors, (374), 308 states have internal predecessors, (374), 15 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2024-10-13 10:09:36,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 403 transitions. [2024-10-13 10:09:36,868 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 403 transitions. Word has length 81 [2024-10-13 10:09:36,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 10:09:36,868 INFO L471 AbstractCegarLoop]: Abstraction has 315 states and 403 transitions. [2024-10-13 10:09:36,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 25.666666666666668) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-13 10:09:36,868 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 403 transitions. [2024-10-13 10:09:36,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-13 10:09:36,869 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 10:09:36,870 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:09:36,878 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-10-13 10:09:37,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 10:09:37,071 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-13 10:09:37,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:09:37,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1108129452, now seen corresponding path program 1 times [2024-10-13 10:09:37,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 10:09:37,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1740714004] [2024-10-13 10:09:37,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:09:37,072 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 [2024-10-13 10:09:37,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 10:09:37,075 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 10:09:37,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-10-13 10:09:37,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:09:37,464 INFO L255 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 10:09:37,467 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 10:09:37,493 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 10:09:37,493 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 10:09:37,572 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-13 10:09:37,572 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 10:09:37,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1740714004] [2024-10-13 10:09:37,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1740714004] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 10:09:37,572 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 10:09:37,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-10-13 10:09:37,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791902286] [2024-10-13 10:09:37,573 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 10:09:37,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 10:09:37,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 10:09:37,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 10:09:37,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-13 10:09:37,574 INFO L87 Difference]: Start difference. First operand 315 states and 403 transitions. Second operand has 8 states, 6 states have (on average 14.166666666666666) internal successors, (85), 8 states have internal predecessors, (85), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-13 10:09:37,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 10:09:37,760 INFO L93 Difference]: Finished difference Result 324 states and 417 transitions. [2024-10-13 10:09:37,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 10:09:37,761 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 14.166666666666666) internal successors, (85), 8 states have internal predecessors, (85), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 83 [2024-10-13 10:09:37,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 10:09:37,763 INFO L225 Difference]: With dead ends: 324 [2024-10-13 10:09:37,763 INFO L226 Difference]: Without dead ends: 324 [2024-10-13 10:09:37,763 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-10-13 10:09:37,764 INFO L432 NwaCegarLoop]: 259 mSDtfsCounter, 5 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1029 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 10:09:37,764 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1029 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 10:09:37,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2024-10-13 10:09:37,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 323. [2024-10-13 10:09:37,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 302 states have (on average 1.281456953642384) internal successors, (387), 315 states have internal predecessors, (387), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2024-10-13 10:09:37,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 416 transitions. [2024-10-13 10:09:37,773 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 416 transitions. Word has length 83 [2024-10-13 10:09:37,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 10:09:37,773 INFO L471 AbstractCegarLoop]: Abstraction has 323 states and 416 transitions. [2024-10-13 10:09:37,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 14.166666666666666) internal successors, (85), 8 states have internal predecessors, (85), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-13 10:09:37,774 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 416 transitions. [2024-10-13 10:09:37,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-13 10:09:37,775 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 10:09:37,777 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:09:37,788 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-10-13 10:09:37,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 10:09:37,978 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-13 10:09:37,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:09:37,979 INFO L85 PathProgramCache]: Analyzing trace with hash -741936228, now seen corresponding path program 2 times [2024-10-13 10:09:37,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 10:09:37,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [333118043] [2024-10-13 10:09:37,979 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 10:09:37,979 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 [2024-10-13 10:09:37,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 10:09:37,980 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 10:09:37,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-10-13 10:09:38,175 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 10:09:38,175 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 10:09:38,177 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 10:09:38,179 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 10:09:38,214 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-13 10:09:38,214 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 10:09:38,214 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 10:09:38,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [333118043] [2024-10-13 10:09:38,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [333118043] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:09:38,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:09:38,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 10:09:38,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911584144] [2024-10-13 10:09:38,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:09:38,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 10:09:38,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 10:09:38,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 10:09:38,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 10:09:38,216 INFO L87 Difference]: Start difference. First operand 323 states and 416 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-13 10:09:42,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-13 10:09:46,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-13 10:09:48,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 10:09:48,566 INFO L93 Difference]: Finished difference Result 465 states and 610 transitions. [2024-10-13 10:09:48,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 10:09:48,567 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 87 [2024-10-13 10:09:48,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 10:09:48,570 INFO L225 Difference]: With dead ends: 465 [2024-10-13 10:09:48,570 INFO L226 Difference]: Without dead ends: 465 [2024-10-13 10:09:48,570 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 10:09:48,570 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 572 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 17 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2024-10-13 10:09:48,571 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [580 Valid, 444 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 123 Invalid, 2 Unknown, 0 Unchecked, 10.3s Time] [2024-10-13 10:09:48,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2024-10-13 10:09:48,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 440. [2024-10-13 10:09:48,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 413 states have (on average 1.2929782082324455) internal successors, (534), 431 states have internal predecessors, (534), 21 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (21), 7 states have call predecessors, (21), 19 states have call successors, (21) [2024-10-13 10:09:48,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 576 transitions. [2024-10-13 10:09:48,579 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 576 transitions. Word has length 87 [2024-10-13 10:09:48,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 10:09:48,579 INFO L471 AbstractCegarLoop]: Abstraction has 440 states and 576 transitions. [2024-10-13 10:09:48,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-13 10:09:48,580 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 576 transitions. [2024-10-13 10:09:48,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-13 10:09:48,581 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 10:09:48,581 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:09:48,586 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2024-10-13 10:09:48,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 10:09:48,782 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-13 10:09:48,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:09:48,782 INFO L85 PathProgramCache]: Analyzing trace with hash 380142394, now seen corresponding path program 1 times [2024-10-13 10:09:48,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 10:09:48,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [214448081] [2024-10-13 10:09:48,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:09:48,783 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 [2024-10-13 10:09:48,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 10:09:48,784 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 10:09:48,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-10-13 10:09:49,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:09:49,161 INFO L255 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-13 10:09:49,164 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 10:09:49,214 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-13 10:09:49,214 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 10:09:49,376 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 26 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-13 10:09:49,376 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 10:09:49,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [214448081] [2024-10-13 10:09:49,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [214448081] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 10:09:49,377 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 10:09:49,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-10-13 10:09:49,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109485327] [2024-10-13 10:09:49,377 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 10:09:49,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-13 10:09:49,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 10:09:49,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-13 10:09:49,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-10-13 10:09:49,378 INFO L87 Difference]: Start difference. First operand 440 states and 576 transitions. Second operand has 14 states, 12 states have (on average 8.333333333333334) internal successors, (100), 14 states have internal predecessors, (100), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-13 10:09:49,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 10:09:49,964 INFO L93 Difference]: Finished difference Result 452 states and 596 transitions. [2024-10-13 10:09:49,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-13 10:09:49,965 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 8.333333333333334) internal successors, (100), 14 states have internal predecessors, (100), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 96 [2024-10-13 10:09:49,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 10:09:49,967 INFO L225 Difference]: With dead ends: 452 [2024-10-13 10:09:49,967 INFO L226 Difference]: Without dead ends: 450 [2024-10-13 10:09:49,967 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2024-10-13 10:09:49,968 INFO L432 NwaCegarLoop]: 259 mSDtfsCounter, 7 mSDsluCounter, 2302 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2561 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 10:09:49,968 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2561 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 10:09:49,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2024-10-13 10:09:49,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 449. [2024-10-13 10:09:49,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 422 states have (on average 1.2938388625592416) internal successors, (546), 440 states have internal predecessors, (546), 21 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (21), 7 states have call predecessors, (21), 19 states have call successors, (21) [2024-10-13 10:09:49,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 588 transitions. [2024-10-13 10:09:49,976 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 588 transitions. Word has length 96 [2024-10-13 10:09:49,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 10:09:49,977 INFO L471 AbstractCegarLoop]: Abstraction has 449 states and 588 transitions. [2024-10-13 10:09:49,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 8.333333333333334) internal successors, (100), 14 states have internal predecessors, (100), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-13 10:09:49,977 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 588 transitions. [2024-10-13 10:09:49,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-10-13 10:09:49,978 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 10:09:49,978 INFO L215 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:09:49,991 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2024-10-13 10:09:50,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 10:09:50,179 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-13 10:09:50,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:09:50,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1541136251, now seen corresponding path program 2 times [2024-10-13 10:09:50,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 10:09:50,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1054700218] [2024-10-13 10:09:50,181 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 10:09:50,181 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 [2024-10-13 10:09:50,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 10:09:50,182 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 10:09:50,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-10-13 10:09:50,439 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 10:09:50,439 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 10:09:50,443 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 10:09:50,445 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 10:09:50,455 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-13 10:09:50,456 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-13 10:09:50,456 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-13 10:09:50,458 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 [2024-10-13 10:09:50,504 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 10:09:50,504 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 [2024-10-13 10:09:50,513 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2024-10-13 10:09:50,513 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 10:09:50,513 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 10:09:50,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1054700218] [2024-10-13 10:09:50,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1054700218] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:09:50,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:09:50,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 10:09:50,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813544041] [2024-10-13 10:09:50,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:09:50,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 10:09:50,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 10:09:50,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 10:09:50,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 10:09:50,515 INFO L87 Difference]: Start difference. First operand 449 states and 588 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-13 10:09:50,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 10:09:50,870 INFO L93 Difference]: Finished difference Result 657 states and 880 transitions. [2024-10-13 10:09:50,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 10:09:50,871 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 105 [2024-10-13 10:09:50,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 10:09:50,873 INFO L225 Difference]: With dead ends: 657 [2024-10-13 10:09:50,874 INFO L226 Difference]: Without dead ends: 657 [2024-10-13 10:09:50,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 10:09:50,874 INFO L432 NwaCegarLoop]: 270 mSDtfsCounter, 186 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 10:09:50,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 771 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 10:09:50,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2024-10-13 10:09:50,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 453. [2024-10-13 10:09:50,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 426 states have (on average 1.2910798122065728) internal successors, (550), 444 states have internal predecessors, (550), 21 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (21), 7 states have call predecessors, (21), 19 states have call successors, (21) [2024-10-13 10:09:50,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 592 transitions. [2024-10-13 10:09:50,884 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 592 transitions. Word has length 105 [2024-10-13 10:09:50,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 10:09:50,884 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 592 transitions. [2024-10-13 10:09:50,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-13 10:09:50,885 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 592 transitions. [2024-10-13 10:09:50,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-10-13 10:09:50,886 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 10:09:50,886 INFO L215 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:09:50,890 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-10-13 10:09:51,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 10:09:51,087 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-13 10:09:51,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:09:51,087 INFO L85 PathProgramCache]: Analyzing trace with hash 631015289, now seen corresponding path program 1 times [2024-10-13 10:09:51,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 10:09:51,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [804886536] [2024-10-13 10:09:51,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:09:51,088 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 [2024-10-13 10:09:51,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 10:09:51,090 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 10:09:51,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-10-13 10:09:51,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:09:51,533 INFO L255 TraceCheckSpWp]: Trace formula consists of 726 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-13 10:09:51,536 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 10:09:51,699 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 70 proven. 55 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-13 10:09:51,700 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 10:09:52,110 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 2 proven. 122 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-13 10:09:52,111 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 10:09:52,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [804886536] [2024-10-13 10:09:52,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [804886536] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 10:09:52,111 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 10:09:52,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-10-13 10:09:52,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498193394] [2024-10-13 10:09:52,111 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 10:09:52,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-13 10:09:52,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 10:09:52,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-13 10:09:52,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-10-13 10:09:52,113 INFO L87 Difference]: Start difference. First operand 453 states and 592 transitions. Second operand has 26 states, 24 states have (on average 6.041666666666667) internal successors, (145), 26 states have internal predecessors, (145), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-13 10:09:53,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 10:09:53,532 INFO L93 Difference]: Finished difference Result 474 states and 630 transitions. [2024-10-13 10:09:53,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-10-13 10:09:53,533 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 6.041666666666667) internal successors, (145), 26 states have internal predecessors, (145), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 139 [2024-10-13 10:09:53,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 10:09:53,535 INFO L225 Difference]: With dead ends: 474 [2024-10-13 10:09:53,536 INFO L226 Difference]: Without dead ends: 472 [2024-10-13 10:09:53,540 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2024-10-13 10:09:53,540 INFO L432 NwaCegarLoop]: 259 mSDtfsCounter, 14 mSDsluCounter, 3074 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 3333 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-13 10:09:53,540 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 3333 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-13 10:09:53,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2024-10-13 10:09:53,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 471. [2024-10-13 10:09:53,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 444 states have (on average 1.2927927927927927) internal successors, (574), 462 states have internal predecessors, (574), 21 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (21), 7 states have call predecessors, (21), 19 states have call successors, (21) [2024-10-13 10:09:53,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 616 transitions. [2024-10-13 10:09:53,550 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 616 transitions. Word has length 139 [2024-10-13 10:09:53,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 10:09:53,550 INFO L471 AbstractCegarLoop]: Abstraction has 471 states and 616 transitions. [2024-10-13 10:09:53,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 6.041666666666667) internal successors, (145), 26 states have internal predecessors, (145), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-13 10:09:53,551 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 616 transitions. [2024-10-13 10:09:53,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-10-13 10:09:53,552 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 10:09:53,552 INFO L215 NwaCegarLoop]: trace histogram [33, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:09:53,565 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2024-10-13 10:09:53,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 10:09:53,753 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-13 10:09:53,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:09:53,753 INFO L85 PathProgramCache]: Analyzing trace with hash -46636967, now seen corresponding path program 2 times [2024-10-13 10:09:53,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 10:09:53,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1787675164] [2024-10-13 10:09:53,754 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 10:09:53,754 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 [2024-10-13 10:09:53,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 10:09:53,755 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 10:09:53,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-10-13 10:09:54,043 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 10:09:54,044 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 10:09:54,047 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 10:09:54,050 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 10:09:54,068 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 599 trivial. 0 not checked. [2024-10-13 10:09:54,068 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 10:09:54,068 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 10:09:54,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1787675164] [2024-10-13 10:09:54,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1787675164] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:09:54,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:09:54,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 10:09:54,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45899635] [2024-10-13 10:09:54,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:09:54,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 10:09:54,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 10:09:54,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 10:09:54,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 10:09:54,070 INFO L87 Difference]: Start difference. First operand 471 states and 616 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-13 10:09:54,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 10:09:54,180 INFO L93 Difference]: Finished difference Result 531 states and 676 transitions. [2024-10-13 10:09:54,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 10:09:54,181 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 157 [2024-10-13 10:09:54,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 10:09:54,183 INFO L225 Difference]: With dead ends: 531 [2024-10-13 10:09:54,183 INFO L226 Difference]: Without dead ends: 531 [2024-10-13 10:09:54,183 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 10:09:54,184 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 7 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 10:09:54,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 468 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 10:09:54,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2024-10-13 10:09:54,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 531. [2024-10-13 10:09:54,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 504 states have (on average 1.257936507936508) internal successors, (634), 522 states have internal predecessors, (634), 21 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (21), 7 states have call predecessors, (21), 19 states have call successors, (21) [2024-10-13 10:09:54,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 676 transitions. [2024-10-13 10:09:54,194 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 676 transitions. Word has length 157 [2024-10-13 10:09:54,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 10:09:54,194 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 676 transitions. [2024-10-13 10:09:54,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-13 10:09:54,194 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 676 transitions. [2024-10-13 10:09:54,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-10-13 10:09:54,197 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 10:09:54,197 INFO L215 NwaCegarLoop]: trace histogram [33, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:09:54,203 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2024-10-13 10:09:54,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 10:09:54,398 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-13 10:09:54,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:09:54,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1116735837, now seen corresponding path program 1 times [2024-10-13 10:09:54,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 10:09:54,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [419598031] [2024-10-13 10:09:54,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:09:54,399 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 [2024-10-13 10:09:54,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 10:09:54,402 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 10:09:54,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-10-13 10:09:54,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:09:54,924 INFO L255 TraceCheckSpWp]: Trace formula consists of 928 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-10-13 10:09:54,928 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 10:09:55,363 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 280 proven. 253 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-10-13 10:09:55,363 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 10:09:56,646 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 2 proven. 530 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-10-13 10:09:56,646 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 10:09:56,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [419598031] [2024-10-13 10:09:56,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [419598031] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 10:09:56,646 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 10:09:56,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2024-10-13 10:09:56,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954280115] [2024-10-13 10:09:56,647 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 10:09:56,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-10-13 10:09:56,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 10:09:56,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-10-13 10:09:56,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2024-10-13 10:09:56,648 INFO L87 Difference]: Start difference. First operand 531 states and 676 transitions. Second operand has 50 states, 48 states have (on average 3.5208333333333335) internal successors, (169), 50 states have internal predecessors, (169), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-13 10:10:01,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 10:10:01,910 INFO L93 Difference]: Finished difference Result 568 states and 746 transitions. [2024-10-13 10:10:01,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-10-13 10:10:01,911 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 48 states have (on average 3.5208333333333335) internal successors, (169), 50 states have internal predecessors, (169), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 157 [2024-10-13 10:10:01,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 10:10:01,913 INFO L225 Difference]: With dead ends: 568 [2024-10-13 10:10:01,913 INFO L226 Difference]: Without dead ends: 566 [2024-10-13 10:10:01,915 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=2713, Invalid=5843, Unknown=0, NotChecked=0, Total=8556 [2024-10-13 10:10:01,915 INFO L432 NwaCegarLoop]: 259 mSDtfsCounter, 25 mSDsluCounter, 6655 mSDsCounter, 0 mSdLazyCounter, 1996 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 6914 SdHoareTripleChecker+Invalid, 2037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-13 10:10:01,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 6914 Invalid, 2037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1996 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-13 10:10:01,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2024-10-13 10:10:01,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 565. [2024-10-13 10:10:01,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 538 states have (on average 1.2639405204460967) internal successors, (680), 556 states have internal predecessors, (680), 21 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (21), 7 states have call predecessors, (21), 19 states have call successors, (21) [2024-10-13 10:10:01,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 722 transitions. [2024-10-13 10:10:01,924 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 722 transitions. Word has length 157 [2024-10-13 10:10:01,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 10:10:01,925 INFO L471 AbstractCegarLoop]: Abstraction has 565 states and 722 transitions. [2024-10-13 10:10:01,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 48 states have (on average 3.5208333333333335) internal successors, (169), 50 states have internal predecessors, (169), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-13 10:10:01,925 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 722 transitions. [2024-10-13 10:10:01,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-10-13 10:10:01,926 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 10:10:01,927 INFO L215 NwaCegarLoop]: trace histogram [67, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:10:01,943 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-10-13 10:10:02,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 10:10:02,132 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-13 10:10:02,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:10:02,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1641422397, now seen corresponding path program 2 times [2024-10-13 10:10:02,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 10:10:02,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2101148568] [2024-10-13 10:10:02,133 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 10:10:02,133 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 [2024-10-13 10:10:02,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 10:10:02,134 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 10:10:02,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-10-13 10:10:02,486 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 10:10:02,487 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 10:10:02,490 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 10:10:02,493 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 10:10:02,511 INFO L134 CoverageAnalysis]: Checked inductivity of 2350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2350 trivial. 0 not checked. [2024-10-13 10:10:02,511 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 10:10:02,512 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 10:10:02,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2101148568] [2024-10-13 10:10:02,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2101148568] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:10:02,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:10:02,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 10:10:02,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332521818] [2024-10-13 10:10:02,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:10:02,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 10:10:02,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 10:10:02,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 10:10:02,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 10:10:02,514 INFO L87 Difference]: Start difference. First operand 565 states and 722 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-13 10:10:02,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 10:10:02,616 INFO L93 Difference]: Finished difference Result 514 states and 638 transitions. [2024-10-13 10:10:02,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 10:10:02,616 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 191 [2024-10-13 10:10:02,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 10:10:02,618 INFO L225 Difference]: With dead ends: 514 [2024-10-13 10:10:02,618 INFO L226 Difference]: Without dead ends: 514 [2024-10-13 10:10:02,618 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 10:10:02,619 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 32 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 10:10:02,619 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 672 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 10:10:02,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2024-10-13 10:10:02,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2024-10-13 10:10:02,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 487 states have (on average 1.2238193018480492) internal successors, (596), 505 states have internal predecessors, (596), 21 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (21), 7 states have call predecessors, (21), 19 states have call successors, (21) [2024-10-13 10:10:02,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 638 transitions. [2024-10-13 10:10:02,630 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 638 transitions. Word has length 191 [2024-10-13 10:10:02,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 10:10:02,631 INFO L471 AbstractCegarLoop]: Abstraction has 514 states and 638 transitions. [2024-10-13 10:10:02,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-13 10:10:02,631 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 638 transitions. [2024-10-13 10:10:02,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-10-13 10:10:02,632 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 10:10:02,632 INFO L215 NwaCegarLoop]: trace histogram [67, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:10:02,639 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-10-13 10:10:02,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 10:10:02,833 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-13 10:10:02,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:10:02,834 INFO L85 PathProgramCache]: Analyzing trace with hash -629608721, now seen corresponding path program 1 times [2024-10-13 10:10:02,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 10:10:02,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [570466705] [2024-10-13 10:10:02,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:10:02,835 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 10:10:02,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 10:10:02,838 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 10:10:02,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-10-13 10:10:03,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:10:03,776 INFO L255 TraceCheckSpWp]: Trace formula consists of 1288 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-10-13 10:10:03,793 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 10:10:04,195 INFO L134 CoverageAnalysis]: Checked inductivity of 2350 backedges. 1083 proven. 276 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2024-10-13 10:10:04,196 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 10:10:05,551 INFO L134 CoverageAnalysis]: Checked inductivity of 2350 backedges. 1083 proven. 276 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2024-10-13 10:10:05,552 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 10:10:05,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [570466705] [2024-10-13 10:10:05,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [570466705] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 10:10:05,552 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 10:10:05,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 52 [2024-10-13 10:10:05,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702213568] [2024-10-13 10:10:05,552 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 10:10:05,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-10-13 10:10:05,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 10:10:05,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-10-13 10:10:05,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=726, Invalid=1926, Unknown=0, NotChecked=0, Total=2652 [2024-10-13 10:10:05,554 INFO L87 Difference]: Start difference. First operand 514 states and 638 transitions. Second operand has 52 states, 50 states have (on average 3.36) internal successors, (168), 52 states have internal predecessors, (168), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-13 10:10:10,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 10:10:10,880 INFO L93 Difference]: Finished difference Result 541 states and 692 transitions. [2024-10-13 10:10:10,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2024-10-13 10:10:10,881 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 50 states have (on average 3.36) internal successors, (168), 52 states have internal predecessors, (168), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 191 [2024-10-13 10:10:10,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 10:10:10,882 INFO L225 Difference]: With dead ends: 541 [2024-10-13 10:10:10,882 INFO L226 Difference]: Without dead ends: 541 [2024-10-13 10:10:10,884 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1633 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=3146, Invalid=6556, Unknown=0, NotChecked=0, Total=9702 [2024-10-13 10:10:10,885 INFO L432 NwaCegarLoop]: 247 mSDtfsCounter, 27 mSDsluCounter, 6838 mSDsCounter, 0 mSdLazyCounter, 1491 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 7085 SdHoareTripleChecker+Invalid, 1542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-13 10:10:10,885 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 7085 Invalid, 1542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1491 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-13 10:10:10,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2024-10-13 10:10:10,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 539. [2024-10-13 10:10:10,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 512 states have (on average 1.26171875) internal successors, (646), 530 states have internal predecessors, (646), 21 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (21), 7 states have call predecessors, (21), 19 states have call successors, (21) [2024-10-13 10:10:10,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 688 transitions. [2024-10-13 10:10:10,894 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 688 transitions. Word has length 191 [2024-10-13 10:10:10,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 10:10:10,895 INFO L471 AbstractCegarLoop]: Abstraction has 539 states and 688 transitions. [2024-10-13 10:10:10,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 50 states have (on average 3.36) internal successors, (168), 52 states have internal predecessors, (168), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-13 10:10:10,895 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 688 transitions. [2024-10-13 10:10:10,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-10-13 10:10:10,896 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 10:10:10,896 INFO L215 NwaCegarLoop]: trace histogram [92, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:10:10,914 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2024-10-13 10:10:11,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 10:10:11,097 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-13 10:10:11,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:10:11,098 INFO L85 PathProgramCache]: Analyzing trace with hash 235372174, now seen corresponding path program 2 times [2024-10-13 10:10:11,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 10:10:11,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [360555166] [2024-10-13 10:10:11,099 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 10:10:11,099 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 [2024-10-13 10:10:11,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 10:10:11,102 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 10:10:11,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-10-13 10:10:12,659 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 10:10:12,659 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 10:10:12,698 INFO L255 TraceCheckSpWp]: Trace formula consists of 1563 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-10-13 10:10:12,701 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 10:10:14,091 INFO L134 CoverageAnalysis]: Checked inductivity of 4375 backedges. 2208 proven. 1176 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2024-10-13 10:10:14,091 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 10:10:18,963 INFO L134 CoverageAnalysis]: Checked inductivity of 4375 backedges. 2208 proven. 1176 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2024-10-13 10:10:18,963 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 10:10:18,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [360555166] [2024-10-13 10:10:18,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [360555166] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 10:10:18,963 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 10:10:18,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52] total 102 [2024-10-13 10:10:18,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008742521] [2024-10-13 10:10:18,963 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 10:10:18,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2024-10-13 10:10:18,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 10:10:18,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2024-10-13 10:10:18,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2701, Invalid=7601, Unknown=0, NotChecked=0, Total=10302 [2024-10-13 10:10:18,967 INFO L87 Difference]: Start difference. First operand 539 states and 688 transitions. Second operand has 102 states, 100 states have (on average 2.18) internal successors, (218), 102 states have internal predecessors, (218), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-13 10:10:45,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 10:10:45,890 INFO L93 Difference]: Finished difference Result 595 states and 799 transitions. [2024-10-13 10:10:45,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2024-10-13 10:10:45,891 INFO L78 Accepts]: Start accepts. Automaton has has 102 states, 100 states have (on average 2.18) internal successors, (218), 102 states have internal predecessors, (218), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 216 [2024-10-13 10:10:45,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 10:10:45,893 INFO L225 Difference]: With dead ends: 595 [2024-10-13 10:10:45,893 INFO L226 Difference]: Without dead ends: 595 [2024-10-13 10:10:45,901 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 527 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 197 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7008 ImplicationChecksByTransitivity, 26.8s TimeCoverageRelationStatistics Valid=12595, Invalid=26807, Unknown=0, NotChecked=0, Total=39402 [2024-10-13 10:10:45,902 INFO L432 NwaCegarLoop]: 247 mSDtfsCounter, 57 mSDsluCounter, 12448 mSDsCounter, 0 mSdLazyCounter, 5455 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 12695 SdHoareTripleChecker+Invalid, 5531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 5455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-10-13 10:10:45,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 12695 Invalid, 5531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 5455 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-10-13 10:10:45,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2024-10-13 10:10:45,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 593. [2024-10-13 10:10:45,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 566 states have (on average 1.3303886925795052) internal successors, (753), 584 states have internal predecessors, (753), 21 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (21), 7 states have call predecessors, (21), 19 states have call successors, (21) [2024-10-13 10:10:45,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 795 transitions. [2024-10-13 10:10:45,911 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 795 transitions. Word has length 216 [2024-10-13 10:10:45,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 10:10:45,911 INFO L471 AbstractCegarLoop]: Abstraction has 593 states and 795 transitions. [2024-10-13 10:10:45,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 100 states have (on average 2.18) internal successors, (218), 102 states have internal predecessors, (218), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-13 10:10:45,912 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 795 transitions. [2024-10-13 10:10:45,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2024-10-13 10:10:45,913 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 10:10:45,914 INFO L215 NwaCegarLoop]: trace histogram [142, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:10:45,937 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2024-10-13 10:10:46,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 10:10:46,114 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-13 10:10:46,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:10:46,115 INFO L85 PathProgramCache]: Analyzing trace with hash 2125904302, now seen corresponding path program 3 times [2024-10-13 10:10:46,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 10:10:46,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [95668597] [2024-10-13 10:10:46,116 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-13 10:10:46,116 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 10:10:46,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 10:10:46,117 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 10:10:46,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-10-13 10:10:47,016 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-13 10:10:47,017 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 10:10:47,033 INFO L255 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-13 10:10:47,038 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 10:10:47,046 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-13 10:10:47,047 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-13 10:10:47,050 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 35 treesize of output 29 [2024-10-13 10:10:56,971 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 10:10:56,971 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 200 treesize of output 88 [2024-10-13 10:10:57,487 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 10:10:57,487 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 110 treesize of output 66 [2024-10-13 10:10:57,530 INFO L134 CoverageAnalysis]: Checked inductivity of 10300 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 10298 trivial. 0 not checked. [2024-10-13 10:10:57,530 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 10:10:58,135 INFO L134 CoverageAnalysis]: Checked inductivity of 10300 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 10298 trivial. 0 not checked. [2024-10-13 10:10:58,135 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 10:10:58,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [95668597] [2024-10-13 10:10:58,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [95668597] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 10:10:58,135 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 10:10:58,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2024-10-13 10:10:58,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064284717] [2024-10-13 10:10:58,135 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 10:10:58,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-13 10:10:58,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 10:10:58,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-13 10:10:58,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-10-13 10:10:58,137 INFO L87 Difference]: Start difference. First operand 593 states and 795 transitions. Second operand has 13 states, 13 states have (on average 14.23076923076923) internal successors, (185), 13 states have internal predecessors, (185), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)