./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_OAT_test3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-1.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 9a814f1cabb0a814aaaa0ad04ef0792a07c6fb7c73876a2da6ae85372115ff6c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 15:54:12,969 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 15:54:13,023 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-10-24 15:54:13,027 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 15:54:13,027 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 15:54:13,052 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 15:54:13,053 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 15:54:13,053 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 15:54:13,053 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 15:54:13,054 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 15:54:13,055 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 15:54:13,055 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 15:54:13,056 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 15:54:13,056 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 15:54:13,058 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 15:54:13,058 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 15:54:13,059 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 15:54:13,059 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 15:54:13,059 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 15:54:13,059 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 15:54:13,059 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 15:54:13,060 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 15:54:13,060 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 15:54:13,060 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 15:54:13,060 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 15:54:13,060 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 15:54:13,061 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 15:54:13,061 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 15:54:13,061 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 15:54:13,061 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 15:54:13,061 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 15:54:13,062 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 15:54:13,062 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 15:54:13,062 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 15:54:13,062 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 15:54:13,062 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 15:54:13,063 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:54:13,063 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 15:54:13,063 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 15:54:13,063 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 15:54:13,063 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 15:54:13,065 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 15:54:13,065 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 15:54:13,065 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 15:54:13,066 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 15:54:13,066 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a814f1cabb0a814aaaa0ad04ef0792a07c6fb7c73876a2da6ae85372115ff6c [2024-10-24 15:54:13,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 15:54:13,289 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 15:54:13,292 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 15:54:13,293 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 15:54:13,293 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 15:54:13,295 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-1.i [2024-10-24 15:54:14,473 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 15:54:14,687 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 15:54:14,687 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-1.i [2024-10-24 15:54:14,701 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05e8706e2/d06e1536057c48c4b9a92751adcf5604/FLAG2a9bf6f74 [2024-10-24 15:54:14,711 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05e8706e2/d06e1536057c48c4b9a92751adcf5604 [2024-10-24 15:54:14,713 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 15:54:14,714 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 15:54:14,716 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 15:54:14,716 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 15:54:14,721 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 15:54:14,721 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:54:14" (1/1) ... [2024-10-24 15:54:14,722 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b34de2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:54:14, skipping insertion in model container [2024-10-24 15:54:14,722 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:54:14" (1/1) ... [2024-10-24 15:54:14,757 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 15:54:15,188 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:54:15,207 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2024-10-24 15:54:15,208 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@d907528 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:54:15, skipping insertion in model container [2024-10-24 15:54:15,208 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 15:54:15,208 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-10-24 15:54:15,210 INFO L158 Benchmark]: Toolchain (without parser) took 494.97ms. Allocated memory is still 138.4MB. Free memory was 84.4MB in the beginning and 105.6MB in the end (delta: -21.2MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. [2024-10-24 15:54:15,210 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 138.4MB. Free memory was 99.8MB in the beginning and 99.6MB in the end (delta: 151.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 15:54:15,211 INFO L158 Benchmark]: CACSL2BoogieTranslator took 492.01ms. Allocated memory is still 138.4MB. Free memory was 84.2MB in the beginning and 105.6MB in the end (delta: -21.5MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. [2024-10-24 15:54:15,212 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 138.4MB. Free memory was 99.8MB in the beginning and 99.6MB in the end (delta: 151.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 492.01ms. Allocated memory is still 138.4MB. Free memory was 84.2MB in the beginning and 105.6MB in the end (delta: -21.5MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 736]: 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_OAT_test3-1.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 9a814f1cabb0a814aaaa0ad04ef0792a07c6fb7c73876a2da6ae85372115ff6c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 15:54:16,734 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 15:54:16,790 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2024-10-24 15:54:16,795 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 15:54:16,796 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 15:54:16,821 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 15:54:16,825 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 15:54:16,825 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 15:54:16,825 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 15:54:16,826 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 15:54:16,826 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 15:54:16,826 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 15:54:16,826 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 15:54:16,827 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 15:54:16,827 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 15:54:16,827 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 15:54:16,827 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 15:54:16,827 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 15:54:16,828 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 15:54:16,828 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 15:54:16,830 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 15:54:16,831 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 15:54:16,831 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 15:54:16,831 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 15:54:16,832 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 15:54:16,833 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 15:54:16,834 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 15:54:16,834 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-24 15:54:16,834 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 15:54:16,834 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-24 15:54:16,834 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 15:54:16,834 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 15:54:16,835 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 15:54:16,835 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 15:54:16,835 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 15:54:16,835 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 15:54:16,835 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 15:54:16,835 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 15:54:16,835 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:54:16,836 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 15:54:16,836 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 15:54:16,837 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-24 15:54:16,837 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-24 15:54:16,837 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 15:54:16,837 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 15:54:16,837 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 15:54:16,837 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 15:54:16,838 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-24 15:54:16,838 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a814f1cabb0a814aaaa0ad04ef0792a07c6fb7c73876a2da6ae85372115ff6c [2024-10-24 15:54:17,073 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 15:54:17,090 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 15:54:17,093 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 15:54:17,094 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 15:54:17,094 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 15:54:17,095 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-1.i [2024-10-24 15:54:18,286 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 15:54:18,511 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 15:54:18,512 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-1.i [2024-10-24 15:54:18,529 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c0a068e8/7e0b308611ce424fbc4dbbbbb95f6dd6/FLAGe72d48b62 [2024-10-24 15:54:18,542 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c0a068e8/7e0b308611ce424fbc4dbbbbb95f6dd6 [2024-10-24 15:54:18,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 15:54:18,545 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 15:54:18,547 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 15:54:18,548 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 15:54:18,552 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 15:54:18,552 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:54:18" (1/1) ... [2024-10-24 15:54:18,553 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dd8f484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:54:18, skipping insertion in model container [2024-10-24 15:54:18,554 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:54:18" (1/1) ... [2024-10-24 15:54:18,604 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 15:54:19,016 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:54:19,025 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-10-24 15:54:19,035 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 15:54:19,132 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:54:19,142 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 15:54:19,236 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:54:19,269 INFO L204 MainTranslator]: Completed translation [2024-10-24 15:54:19,270 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:54:19 WrapperNode [2024-10-24 15:54:19,270 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 15:54:19,271 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 15:54:19,271 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 15:54:19,271 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 15:54:19,284 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:54:19" (1/1) ... [2024-10-24 15:54:19,319 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:54:19" (1/1) ... [2024-10-24 15:54:19,368 INFO L138 Inliner]: procedures = 180, calls = 279, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1050 [2024-10-24 15:54:19,369 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 15:54:19,369 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 15:54:19,369 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 15:54:19,369 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 15:54:19,377 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:54:19" (1/1) ... [2024-10-24 15:54:19,377 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:54:19" (1/1) ... [2024-10-24 15:54:19,383 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:54:19" (1/1) ... [2024-10-24 15:54:19,439 INFO L175 MemorySlicer]: Split 255 memory accesses to 3 slices as follows [2, 34, 219]. 86 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 54 writes are split as follows [0, 4, 50]. [2024-10-24 15:54:19,439 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:54:19" (1/1) ... [2024-10-24 15:54:19,439 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:54:19" (1/1) ... [2024-10-24 15:54:19,471 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:54:19" (1/1) ... [2024-10-24 15:54:19,478 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:54:19" (1/1) ... [2024-10-24 15:54:19,485 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:54:19" (1/1) ... [2024-10-24 15:54:19,495 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:54:19" (1/1) ... [2024-10-24 15:54:19,506 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 15:54:19,507 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 15:54:19,507 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 15:54:19,507 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 15:54:19,508 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:54:19" (1/1) ... [2024-10-24 15:54:19,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:54:19,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:54:19,548 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 15:54:19,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 15:54:19,586 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-10-24 15:54:19,586 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-10-24 15:54:19,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-10-24 15:54:19,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-10-24 15:54:19,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-10-24 15:54:19,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-24 15:54:19,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-24 15:54:19,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-24 15:54:19,589 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-24 15:54:19,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-24 15:54:19,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-10-24 15:54:19,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-10-24 15:54:19,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-10-24 15:54:19,590 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-10-24 15:54:19,590 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-10-24 15:54:19,590 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-10-24 15:54:19,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-24 15:54:19,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 15:54:19,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-24 15:54:19,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-24 15:54:19,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-24 15:54:19,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-24 15:54:19,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-24 15:54:19,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-24 15:54:19,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-24 15:54:19,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 15:54:19,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-24 15:54:19,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-24 15:54:19,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-24 15:54:19,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-24 15:54:19,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-24 15:54:19,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-24 15:54:19,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 15:54:19,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 15:54:19,753 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 15:54:19,755 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 15:54:26,467 INFO L? ?]: Removed 136 outVars from TransFormulas that were not future-live. [2024-10-24 15:54:26,467 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 15:54:26,494 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 15:54:26,497 INFO L314 CfgBuilder]: Removed 63 assume(true) statements. [2024-10-24 15:54:26,497 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:54:26 BoogieIcfgContainer [2024-10-24 15:54:26,497 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 15:54:26,498 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 15:54:26,499 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 15:54:26,501 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 15:54:26,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:54:18" (1/3) ... [2024-10-24 15:54:26,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@704d4448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:54:26, skipping insertion in model container [2024-10-24 15:54:26,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:54:19" (2/3) ... [2024-10-24 15:54:26,502 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@704d4448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:54:26, skipping insertion in model container [2024-10-24 15:54:26,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:54:26" (3/3) ... [2024-10-24 15:54:26,503 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test3-1.i [2024-10-24 15:54:26,514 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 15:54:26,515 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-24 15:54:26,556 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:54:26,560 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;@2b7e33c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:54:26,560 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-24 15:54:26,563 INFO L276 IsEmpty]: Start isEmpty. Operand has 208 states, 192 states have (on average 1.6822916666666667) internal successors, (323), 201 states have internal predecessors, (323), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-24 15:54:26,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-24 15:54:26,568 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 15:54:26,568 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:54:26,568 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-24 15:54:26,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:54:26,571 INFO L85 PathProgramCache]: Analyzing trace with hash 212559925, now seen corresponding path program 1 times [2024-10-24 15:54:26,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 15:54:26,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1050598832] [2024-10-24 15:54:26,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:54:26,580 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 15:54:26,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 15:54:26,582 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 15:54:26,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-24 15:54:26,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:54:26,744 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-24 15:54:26,747 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:54:26,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:54:26,753 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:54:26,754 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 15:54:26,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1050598832] [2024-10-24 15:54:26,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1050598832] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:54:26,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:54:26,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:54:26,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719857044] [2024-10-24 15:54:26,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:54:26,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 15:54:26,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 15:54:26,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 15:54:26,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 15:54:26,796 INFO L87 Difference]: Start difference. First operand has 208 states, 192 states have (on average 1.6822916666666667) internal successors, (323), 201 states have internal predecessors, (323), 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 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:54:26,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 15:54:26,842 INFO L93 Difference]: Finished difference Result 206 states and 271 transitions. [2024-10-24 15:54:26,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 15:54:26,844 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-10-24 15:54:26,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 15:54:26,852 INFO L225 Difference]: With dead ends: 206 [2024-10-24 15:54:26,852 INFO L226 Difference]: Without dead ends: 205 [2024-10-24 15:54:26,854 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 15:54:26,858 INFO L432 NwaCegarLoop]: 267 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 15:54:26,860 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 267 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 15:54:26,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-10-24 15:54:26,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2024-10-24 15:54:26,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 191 states have (on average 1.3193717277486912) internal successors, (252), 198 states have internal predecessors, (252), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-24 15:54:26,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 270 transitions. [2024-10-24 15:54:26,940 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 270 transitions. Word has length 8 [2024-10-24 15:54:26,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 15:54:26,944 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 270 transitions. [2024-10-24 15:54:26,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:54:26,945 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 270 transitions. [2024-10-24 15:54:26,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-24 15:54:26,945 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 15:54:26,945 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:54:26,949 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-10-24 15:54:27,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 15:54:27,147 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-24 15:54:27,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:54:27,148 INFO L85 PathProgramCache]: Analyzing trace with hash 615855570, now seen corresponding path program 1 times [2024-10-24 15:54:27,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 15:54:27,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1324723042] [2024-10-24 15:54:27,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:54:27,148 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 15:54:27,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 15:54:27,150 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 15:54:27,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-24 15:54:27,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:54:27,300 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 15:54:27,302 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:54:27,327 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-24 15:54:27,328 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-24 15:54:27,329 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-24 15:54:27,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2024-10-24 15:54:27,398 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:54:27,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2024-10-24 15:54:27,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:54:27,421 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:54:27,421 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 15:54:27,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1324723042] [2024-10-24 15:54:27,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1324723042] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:54:27,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:54:27,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 15:54:27,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801339321] [2024-10-24 15:54:27,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:54:27,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 15:54:27,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 15:54:27,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 15:54:27,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 15:54:27,438 INFO L87 Difference]: Start difference. First operand 205 states and 270 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:54:27,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 15:54:27,901 INFO L93 Difference]: Finished difference Result 395 states and 526 transitions. [2024-10-24 15:54:27,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 15:54:27,901 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-10-24 15:54:27,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 15:54:27,903 INFO L225 Difference]: With dead ends: 395 [2024-10-24 15:54:27,903 INFO L226 Difference]: Without dead ends: 395 [2024-10-24 15:54:27,904 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 15:54:27,904 INFO L432 NwaCegarLoop]: 250 mSDtfsCounter, 236 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 15:54:27,905 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 737 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 15:54:27,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2024-10-24 15:54:27,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 207. [2024-10-24 15:54:27,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 193 states have (on average 1.3160621761658031) internal successors, (254), 200 states have internal predecessors, (254), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-24 15:54:27,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 272 transitions. [2024-10-24 15:54:27,929 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 272 transitions. Word has length 10 [2024-10-24 15:54:27,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 15:54:27,929 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 272 transitions. [2024-10-24 15:54:27,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:54:27,930 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 272 transitions. [2024-10-24 15:54:27,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-24 15:54:27,931 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 15:54:27,931 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-24 15:54:27,937 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 (3)] Forceful destruction successful, exit code 0 [2024-10-24 15:54:28,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 15:54:28,133 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-24 15:54:28,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:54:28,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1335770244, now seen corresponding path program 1 times [2024-10-24 15:54:28,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 15:54:28,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [777704483] [2024-10-24 15:54:28,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:54:28,135 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 15:54:28,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 15:54:28,136 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 15:54:28,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-10-24 15:54:28,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:54:28,420 INFO L255 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 15:54:28,422 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:54:28,444 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:54:28,446 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:54:28,446 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 15:54:28,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [777704483] [2024-10-24 15:54:28,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [777704483] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:54:28,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:54:28,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 15:54:28,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708907753] [2024-10-24 15:54:28,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:54:28,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 15:54:28,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 15:54:28,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 15:54:28,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 15:54:28,449 INFO L87 Difference]: Start difference. First operand 207 states and 272 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:54:28,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 15:54:28,565 INFO L93 Difference]: Finished difference Result 210 states and 267 transitions. [2024-10-24 15:54:28,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 15:54:28,566 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-10-24 15:54:28,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 15:54:28,567 INFO L225 Difference]: With dead ends: 210 [2024-10-24 15:54:28,567 INFO L226 Difference]: Without dead ends: 210 [2024-10-24 15:54:28,567 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 15:54:28,568 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 30 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 15:54:28,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 694 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 15:54:28,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2024-10-24 15:54:28,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2024-10-24 15:54:28,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 196 states have (on average 1.2704081632653061) internal successors, (249), 203 states have internal predecessors, (249), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-24 15:54:28,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 267 transitions. [2024-10-24 15:54:28,574 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 267 transitions. Word has length 66 [2024-10-24 15:54:28,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 15:54:28,575 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 267 transitions. [2024-10-24 15:54:28,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:54:28,575 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 267 transitions. [2024-10-24 15:54:28,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-24 15:54:28,576 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 15:54:28,576 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-24 15:54:28,587 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-10-24 15:54:28,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 15:54:28,781 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-24 15:54:28,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:54:28,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1095469320, now seen corresponding path program 1 times [2024-10-24 15:54:28,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 15:54:28,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [173297084] [2024-10-24 15:54:28,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:54:28,782 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 15:54:28,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 15:54:28,785 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 15:54:28,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-10-24 15:54:29,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:54:29,063 INFO L255 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 15:54:29,065 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:54:29,261 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:54:29,261 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:54:29,261 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 15:54:29,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [173297084] [2024-10-24 15:54:29,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [173297084] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:54:29,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:54:29,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:54:29,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091972613] [2024-10-24 15:54:29,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:54:29,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:54:29,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 15:54:29,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:54:29,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:54:29,263 INFO L87 Difference]: Start difference. First operand 210 states and 267 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:54:29,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 15:54:29,711 INFO L93 Difference]: Finished difference Result 321 states and 404 transitions. [2024-10-24 15:54:29,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:54:29,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-10-24 15:54:29,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 15:54:29,713 INFO L225 Difference]: With dead ends: 321 [2024-10-24 15:54:29,713 INFO L226 Difference]: Without dead ends: 321 [2024-10-24 15:54:29,713 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:54:29,714 INFO L432 NwaCegarLoop]: 298 mSDtfsCounter, 90 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 15:54:29,714 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 531 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 15:54:29,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2024-10-24 15:54:29,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 318. [2024-10-24 15:54:29,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 304 states have (on average 1.2598684210526316) internal successors, (383), 311 states have internal predecessors, (383), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-24 15:54:29,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 401 transitions. [2024-10-24 15:54:29,722 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 401 transitions. Word has length 66 [2024-10-24 15:54:29,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 15:54:29,722 INFO L471 AbstractCegarLoop]: Abstraction has 318 states and 401 transitions. [2024-10-24 15:54:29,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:54:29,722 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 401 transitions. [2024-10-24 15:54:29,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-10-24 15:54:29,724 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 15:54:29,724 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] [2024-10-24 15:54:29,733 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-10-24 15:54:29,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 15:54:29,929 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-24 15:54:29,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:54:29,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1489101063, now seen corresponding path program 1 times [2024-10-24 15:54:29,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 15:54:29,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2139778348] [2024-10-24 15:54:29,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:54:29,930 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 15:54:29,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 15:54:29,933 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 15:54:29,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-10-24 15:54:30,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:54:30,269 INFO L255 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 15:54:30,272 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:54:30,293 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:54:30,293 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:54:30,294 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 15:54:30,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2139778348] [2024-10-24 15:54:30,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2139778348] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:54:30,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:54:30,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 15:54:30,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994434175] [2024-10-24 15:54:30,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:54:30,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 15:54:30,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 15:54:30,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 15:54:30,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 15:54:30,296 INFO L87 Difference]: Start difference. First operand 318 states and 401 transitions. Second operand has 4 states, 3 states have (on average 25.0) internal successors, (75), 4 states have internal predecessors, (75), 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) [2024-10-24 15:54:30,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 15:54:30,354 INFO L93 Difference]: Finished difference Result 320 states and 404 transitions. [2024-10-24 15:54:30,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 15:54:30,355 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 25.0) internal successors, (75), 4 states have internal predecessors, (75), 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 79 [2024-10-24 15:54:30,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 15:54:30,357 INFO L225 Difference]: With dead ends: 320 [2024-10-24 15:54:30,357 INFO L226 Difference]: Without dead ends: 320 [2024-10-24 15:54:30,357 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 15:54:30,357 INFO L432 NwaCegarLoop]: 254 mSDtfsCounter, 0 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 758 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 15:54:30,358 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 758 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 15:54:30,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2024-10-24 15:54:30,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 320. [2024-10-24 15:54:30,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 305 states have (on average 1.2622950819672132) internal successors, (385), 313 states have internal predecessors, (385), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-10-24 15:54:30,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 404 transitions. [2024-10-24 15:54:30,366 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 404 transitions. Word has length 79 [2024-10-24 15:54:30,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 15:54:30,369 INFO L471 AbstractCegarLoop]: Abstraction has 320 states and 404 transitions. [2024-10-24 15:54:30,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 25.0) internal successors, (75), 4 states have internal predecessors, (75), 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) [2024-10-24 15:54:30,370 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 404 transitions. [2024-10-24 15:54:30,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-24 15:54:30,371 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 15:54:30,371 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] [2024-10-24 15:54:30,382 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-10-24 15:54:30,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 15:54:30,572 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-24 15:54:30,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:54:30,573 INFO L85 PathProgramCache]: Analyzing trace with hash 599374851, now seen corresponding path program 1 times [2024-10-24 15:54:30,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 15:54:30,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [990851438] [2024-10-24 15:54:30,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:54:30,574 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 15:54:30,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 15:54:30,575 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 15:54:30,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-10-24 15:54:30,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:54:30,911 INFO L255 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 15:54:30,915 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:54:30,940 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-24 15:54:30,940 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 15:54:31,045 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 15:54:31,045 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 15:54:31,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [990851438] [2024-10-24 15:54:31,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [990851438] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 15:54:31,045 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 15:54:31,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-10-24 15:54:31,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710782335] [2024-10-24 15:54:31,045 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 15:54:31,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 15:54:31,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 15:54:31,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 15:54:31,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-24 15:54:31,051 INFO L87 Difference]: Start difference. First operand 320 states and 404 transitions. Second operand has 8 states, 6 states have (on average 13.833333333333334) internal successors, (83), 8 states have internal predecessors, (83), 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) [2024-10-24 15:54:31,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 15:54:31,218 INFO L93 Difference]: Finished difference Result 329 states and 418 transitions. [2024-10-24 15:54:31,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 15:54:31,219 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 13.833333333333334) internal successors, (83), 8 states have internal predecessors, (83), 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 81 [2024-10-24 15:54:31,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 15:54:31,220 INFO L225 Difference]: With dead ends: 329 [2024-10-24 15:54:31,221 INFO L226 Difference]: Without dead ends: 329 [2024-10-24 15:54:31,221 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-10-24 15:54:31,222 INFO L432 NwaCegarLoop]: 254 mSDtfsCounter, 4 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1008 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 15:54:31,223 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1008 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 15:54:31,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-10-24 15:54:31,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 328. [2024-10-24 15:54:31,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 312 states have (on average 1.2756410256410255) internal successors, (398), 320 states have internal predecessors, (398), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-10-24 15:54:31,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 417 transitions. [2024-10-24 15:54:31,234 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 417 transitions. Word has length 81 [2024-10-24 15:54:31,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 15:54:31,236 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 417 transitions. [2024-10-24 15:54:31,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 13.833333333333334) internal successors, (83), 8 states have internal predecessors, (83), 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) [2024-10-24 15:54:31,236 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 417 transitions. [2024-10-24 15:54:31,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-24 15:54:31,238 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 15:54:31,238 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] [2024-10-24 15:54:31,252 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-10-24 15:54:31,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 15:54:31,439 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-24 15:54:31,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:54:31,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1793952551, now seen corresponding path program 2 times [2024-10-24 15:54:31,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 15:54:31,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [653646281] [2024-10-24 15:54:31,440 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 15:54:31,440 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 15:54:31,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 15:54:31,441 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 15:54:31,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-10-24 15:54:31,678 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-24 15:54:31,678 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 15:54:31,682 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 15:54:31,684 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:54:31,692 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-24 15:54:31,693 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-24 15:54:31,693 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-24 15:54:31,696 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2024-10-24 15:54:31,750 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:54:31,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2024-10-24 15:54:31,763 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-24 15:54:31,763 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:54:31,763 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 15:54:31,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [653646281] [2024-10-24 15:54:31,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [653646281] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:54:31,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:54:31,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 15:54:31,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230553326] [2024-10-24 15:54:31,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:54:31,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 15:54:31,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 15:54:31,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 15:54:31,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 15:54:31,765 INFO L87 Difference]: Start difference. First operand 328 states and 417 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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) [2024-10-24 15:54:32,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 15:54:32,218 INFO L93 Difference]: Finished difference Result 488 states and 628 transitions. [2024-10-24 15:54:32,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 15:54:32,219 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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 85 [2024-10-24 15:54:32,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 15:54:32,221 INFO L225 Difference]: With dead ends: 488 [2024-10-24 15:54:32,221 INFO L226 Difference]: Without dead ends: 488 [2024-10-24 15:54:32,221 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 15:54:32,222 INFO L432 NwaCegarLoop]: 264 mSDtfsCounter, 207 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 759 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 15:54:32,222 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 759 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 15:54:32,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2024-10-24 15:54:32,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 330. [2024-10-24 15:54:32,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 314 states have (on average 1.2738853503184713) internal successors, (400), 322 states have internal predecessors, (400), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-10-24 15:54:32,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 419 transitions. [2024-10-24 15:54:32,229 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 419 transitions. Word has length 85 [2024-10-24 15:54:32,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 15:54:32,230 INFO L471 AbstractCegarLoop]: Abstraction has 330 states and 419 transitions. [2024-10-24 15:54:32,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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) [2024-10-24 15:54:32,230 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 419 transitions. [2024-10-24 15:54:32,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-24 15:54:32,231 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 15:54:32,232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:54:32,236 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-10-24 15:54:32,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 15:54:32,436 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-24 15:54:32,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:54:32,436 INFO L85 PathProgramCache]: Analyzing trace with hash -327216987, now seen corresponding path program 1 times [2024-10-24 15:54:32,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 15:54:32,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [845010704] [2024-10-24 15:54:32,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:54:32,437 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 15:54:32,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 15:54:32,438 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 15:54:32,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-10-24 15:54:32,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:54:32,829 INFO L255 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-24 15:54:32,832 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:54:32,887 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-24 15:54:32,888 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 15:54:33,023 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 26 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 15:54:33,024 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 15:54:33,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [845010704] [2024-10-24 15:54:33,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [845010704] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 15:54:33,024 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 15:54:33,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-10-24 15:54:33,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377834847] [2024-10-24 15:54:33,024 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 15:54:33,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 15:54:33,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 15:54:33,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 15:54:33,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-10-24 15:54:33,025 INFO L87 Difference]: Start difference. First operand 330 states and 419 transitions. Second operand has 14 states, 12 states have (on average 10.416666666666666) internal successors, (125), 14 states have internal predecessors, (125), 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) [2024-10-24 15:54:33,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 15:54:33,425 INFO L93 Difference]: Finished difference Result 342 states and 438 transitions. [2024-10-24 15:54:33,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-24 15:54:33,426 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 10.416666666666666) internal successors, (125), 14 states have internal predecessors, (125), 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 122 [2024-10-24 15:54:33,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 15:54:33,427 INFO L225 Difference]: With dead ends: 342 [2024-10-24 15:54:33,427 INFO L226 Difference]: Without dead ends: 340 [2024-10-24 15:54:33,428 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2024-10-24 15:54:33,428 INFO L432 NwaCegarLoop]: 254 mSDtfsCounter, 8 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1762 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 15:54:33,428 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1762 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 15:54:33,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-10-24 15:54:33,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 339. [2024-10-24 15:54:33,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 323 states have (on average 1.2755417956656347) internal successors, (412), 331 states have internal predecessors, (412), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-10-24 15:54:33,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 431 transitions. [2024-10-24 15:54:33,443 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 431 transitions. Word has length 122 [2024-10-24 15:54:33,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 15:54:33,443 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 431 transitions. [2024-10-24 15:54:33,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 10.416666666666666) internal successors, (125), 14 states have internal predecessors, (125), 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) [2024-10-24 15:54:33,443 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 431 transitions. [2024-10-24 15:54:33,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 15:54:33,444 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 15:54:33,444 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] [2024-10-24 15:54:33,456 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 [2024-10-24 15:54:33,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 15:54:33,645 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-24 15:54:33,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:54:33,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1855486078, now seen corresponding path program 2 times [2024-10-24 15:54:33,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 15:54:33,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1459341472] [2024-10-24 15:54:33,647 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 15:54:33,647 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 15:54:33,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 15:54:33,649 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 15:54:33,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-10-24 15:54:33,902 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-24 15:54:33,903 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 15:54:33,906 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 15:54:33,910 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:54:33,931 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-10-24 15:54:33,931 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:54:33,931 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 15:54:33,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1459341472] [2024-10-24 15:54:33,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1459341472] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:54:33,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:54:33,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 15:54:33,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128559066] [2024-10-24 15:54:33,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:54:33,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 15:54:33,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 15:54:33,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 15:54:33,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 15:54:33,934 INFO L87 Difference]: Start difference. First operand 339 states and 431 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 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) [2024-10-24 15:54:34,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 15:54:34,042 INFO L93 Difference]: Finished difference Result 345 states and 421 transitions. [2024-10-24 15:54:34,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 15:54:34,042 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 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 131 [2024-10-24 15:54:34,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 15:54:34,044 INFO L225 Difference]: With dead ends: 345 [2024-10-24 15:54:34,044 INFO L226 Difference]: Without dead ends: 345 [2024-10-24 15:54:34,044 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 15:54:34,044 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 30 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 15:54:34,044 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 661 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 15:54:34,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-10-24 15:54:34,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 345. [2024-10-24 15:54:34,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 329 states have (on average 1.221884498480243) internal successors, (402), 337 states have internal predecessors, (402), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-10-24 15:54:34,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 421 transitions. [2024-10-24 15:54:34,050 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 421 transitions. Word has length 131 [2024-10-24 15:54:34,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 15:54:34,050 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 421 transitions. [2024-10-24 15:54:34,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 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) [2024-10-24 15:54:34,051 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 421 transitions. [2024-10-24 15:54:34,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 15:54:34,051 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 15:54:34,052 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] [2024-10-24 15:54:34,057 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2024-10-24 15:54:34,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 15:54:34,252 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-24 15:54:34,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:54:34,253 INFO L85 PathProgramCache]: Analyzing trace with hash -505556234, now seen corresponding path program 1 times [2024-10-24 15:54:34,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 15:54:34,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1593433559] [2024-10-24 15:54:34,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:54:34,254 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 15:54:34,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 15:54:34,256 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 15:54:34,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-10-24 15:54:34,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:54:34,687 INFO L255 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-24 15:54:34,689 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:54:34,826 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 70 proven. 55 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-24 15:54:34,826 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 15:54:35,246 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 2 proven. 122 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-24 15:54:35,246 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 15:54:35,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1593433559] [2024-10-24 15:54:35,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1593433559] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 15:54:35,246 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 15:54:35,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-10-24 15:54:35,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760790331] [2024-10-24 15:54:35,247 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 15:54:35,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-24 15:54:35,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 15:54:35,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-24 15:54:35,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-10-24 15:54:35,248 INFO L87 Difference]: Start difference. First operand 345 states and 421 transitions. Second operand has 26 states, 24 states have (on average 5.708333333333333) internal successors, (137), 26 states have internal predecessors, (137), 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) [2024-10-24 15:54:36,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 15:54:36,541 INFO L93 Difference]: Finished difference Result 366 states and 458 transitions. [2024-10-24 15:54:36,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-10-24 15:54:36,543 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 5.708333333333333) internal successors, (137), 26 states have internal predecessors, (137), 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 131 [2024-10-24 15:54:36,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 15:54:36,544 INFO L225 Difference]: With dead ends: 366 [2024-10-24 15:54:36,544 INFO L226 Difference]: Without dead ends: 364 [2024-10-24 15:54:36,545 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2024-10-24 15:54:36,545 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 13 mSDsluCounter, 2642 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2885 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 15:54:36,546 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2885 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 563 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 15:54:36,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2024-10-24 15:54:36,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 363. [2024-10-24 15:54:36,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 347 states have (on average 1.2276657060518732) internal successors, (426), 355 states have internal predecessors, (426), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-10-24 15:54:36,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 445 transitions. [2024-10-24 15:54:36,551 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 445 transitions. Word has length 131 [2024-10-24 15:54:36,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 15:54:36,551 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 445 transitions. [2024-10-24 15:54:36,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 5.708333333333333) internal successors, (137), 26 states have internal predecessors, (137), 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) [2024-10-24 15:54:36,551 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 445 transitions. [2024-10-24 15:54:36,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-10-24 15:54:36,552 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 15:54:36,552 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] [2024-10-24 15:54:36,565 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 [2024-10-24 15:54:36,752 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 [2024-10-24 15:54:36,753 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-24 15:54:36,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:54:36,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1097496918, now seen corresponding path program 2 times [2024-10-24 15:54:36,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 15:54:36,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1736874171] [2024-10-24 15:54:36,754 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 15:54:36,754 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 [2024-10-24 15:54:36,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 15:54:36,756 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 15:54:36,756 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 [2024-10-24 15:54:37,022 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-24 15:54:37,022 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 15:54:37,025 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 15:54:37,028 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:54:37,050 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 599 trivial. 0 not checked. [2024-10-24 15:54:37,050 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:54:37,050 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 15:54:37,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1736874171] [2024-10-24 15:54:37,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1736874171] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:54:37,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:54:37,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 15:54:37,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811110055] [2024-10-24 15:54:37,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:54:37,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:54:37,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 15:54:37,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:54:37,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:54:37,052 INFO L87 Difference]: Start difference. First operand 363 states and 445 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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) [2024-10-24 15:54:37,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 15:54:37,113 INFO L93 Difference]: Finished difference Result 363 states and 439 transitions. [2024-10-24 15:54:37,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:54:37,114 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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 149 [2024-10-24 15:54:37,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 15:54:37,115 INFO L225 Difference]: With dead ends: 363 [2024-10-24 15:54:37,115 INFO L226 Difference]: Without dead ends: 363 [2024-10-24 15:54:37,116 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:54:37,116 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 0 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 15:54:37,116 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 457 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 15:54:37,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-10-24 15:54:37,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2024-10-24 15:54:37,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 347 states have (on average 1.2103746397694524) internal successors, (420), 355 states have internal predecessors, (420), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-10-24 15:54:37,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 439 transitions. [2024-10-24 15:54:37,129 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 439 transitions. Word has length 149 [2024-10-24 15:54:37,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 15:54:37,130 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 439 transitions. [2024-10-24 15:54:37,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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) [2024-10-24 15:54:37,131 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 439 transitions. [2024-10-24 15:54:37,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-10-24 15:54:37,132 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 15:54:37,133 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] [2024-10-24 15:54:37,137 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2024-10-24 15:54:37,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 15:54:37,333 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-24 15:54:37,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:54:37,334 INFO L85 PathProgramCache]: Analyzing trace with hash 2118565272, now seen corresponding path program 1 times [2024-10-24 15:54:37,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 15:54:37,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [855566661] [2024-10-24 15:54:37,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:54:37,334 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 15:54:37,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 15:54:37,337 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 15:54:37,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-10-24 15:54:37,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:54:37,844 INFO L255 TraceCheckSpWp]: Trace formula consists of 898 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-10-24 15:54:37,848 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:54:38,243 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 280 proven. 253 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-10-24 15:54:38,243 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 15:54:39,417 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 2 proven. 530 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-10-24 15:54:39,417 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 15:54:39,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [855566661] [2024-10-24 15:54:39,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [855566661] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 15:54:39,417 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 15:54:39,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2024-10-24 15:54:39,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146726862] [2024-10-24 15:54:39,418 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 15:54:39,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-10-24 15:54:39,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 15:54:39,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-10-24 15:54:39,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2024-10-24 15:54:39,420 INFO L87 Difference]: Start difference. First operand 363 states and 439 transitions. Second operand has 50 states, 48 states have (on average 3.3541666666666665) internal successors, (161), 50 states have internal predecessors, (161), 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) [2024-10-24 15:54:44,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 15:54:44,099 INFO L93 Difference]: Finished difference Result 400 states and 508 transitions. [2024-10-24 15:54:44,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-10-24 15:54:44,101 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 48 states have (on average 3.3541666666666665) internal successors, (161), 50 states have internal predecessors, (161), 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 149 [2024-10-24 15:54:44,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 15:54:44,102 INFO L225 Difference]: With dead ends: 400 [2024-10-24 15:54:44,102 INFO L226 Difference]: Without dead ends: 398 [2024-10-24 15:54:44,104 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=2713, Invalid=5843, Unknown=0, NotChecked=0, Total=8556 [2024-10-24 15:54:44,105 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 26 mSDsluCounter, 6001 mSDsCounter, 0 mSdLazyCounter, 1982 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 6244 SdHoareTripleChecker+Invalid, 2045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-24 15:54:44,105 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 6244 Invalid, 2045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1982 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-24 15:54:44,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2024-10-24 15:54:44,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 397. [2024-10-24 15:54:44,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 381 states have (on average 1.2230971128608923) internal successors, (466), 389 states have internal predecessors, (466), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-10-24 15:54:44,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 485 transitions. [2024-10-24 15:54:44,112 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 485 transitions. Word has length 149 [2024-10-24 15:54:44,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 15:54:44,112 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 485 transitions. [2024-10-24 15:54:44,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 48 states have (on average 3.3541666666666665) internal successors, (161), 50 states have internal predecessors, (161), 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) [2024-10-24 15:54:44,112 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 485 transitions. [2024-10-24 15:54:44,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-10-24 15:54:44,113 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 15:54:44,113 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] [2024-10-24 15:54:44,129 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-10-24 15:54:44,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 15:54:44,315 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-24 15:54:44,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:54:44,316 INFO L85 PathProgramCache]: Analyzing trace with hash -182444680, now seen corresponding path program 2 times [2024-10-24 15:54:44,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 15:54:44,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1802105439] [2024-10-24 15:54:44,316 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 15:54:44,317 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 15:54:44,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 15:54:44,319 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 15:54:44,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-10-24 15:54:45,389 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 15:54:45,390 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 15:54:45,420 INFO L255 TraceCheckSpWp]: Trace formula consists of 1272 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-10-24 15:54:45,424 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:54:45,834 INFO L134 CoverageAnalysis]: Checked inductivity of 2350 backedges. 1083 proven. 276 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2024-10-24 15:54:45,835 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 15:54:47,156 INFO L134 CoverageAnalysis]: Checked inductivity of 2350 backedges. 1083 proven. 276 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2024-10-24 15:54:47,157 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 15:54:47,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1802105439] [2024-10-24 15:54:47,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1802105439] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 15:54:47,157 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 15:54:47,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 52 [2024-10-24 15:54:47,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340580430] [2024-10-24 15:54:47,157 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 15:54:47,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-10-24 15:54:47,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 15:54:47,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-10-24 15:54:47,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=726, Invalid=1926, Unknown=0, NotChecked=0, Total=2652 [2024-10-24 15:54:47,159 INFO L87 Difference]: Start difference. First operand 397 states and 485 transitions. Second operand has 52 states, 50 states have (on average 3.2) internal successors, (160), 52 states have internal predecessors, (160), 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) [2024-10-24 15:54:51,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 15:54:51,993 INFO L93 Difference]: Finished difference Result 424 states and 537 transitions. [2024-10-24 15:54:51,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2024-10-24 15:54:51,993 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 50 states have (on average 3.2) internal successors, (160), 52 states have internal predecessors, (160), 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 183 [2024-10-24 15:54:51,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 15:54:51,997 INFO L225 Difference]: With dead ends: 424 [2024-10-24 15:54:51,997 INFO L226 Difference]: Without dead ends: 424 [2024-10-24 15:54:51,999 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1633 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=3146, Invalid=6556, Unknown=0, NotChecked=0, Total=9702 [2024-10-24 15:54:51,999 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 26 mSDsluCounter, 6218 mSDsCounter, 0 mSdLazyCounter, 1454 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 6460 SdHoareTripleChecker+Invalid, 1490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-24 15:54:51,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 6460 Invalid, 1490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1454 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-24 15:54:52,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2024-10-24 15:54:52,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 422. [2024-10-24 15:54:52,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 406 states have (on average 1.270935960591133) internal successors, (516), 414 states have internal predecessors, (516), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-10-24 15:54:52,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 535 transitions. [2024-10-24 15:54:52,008 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 535 transitions. Word has length 183 [2024-10-24 15:54:52,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 15:54:52,008 INFO L471 AbstractCegarLoop]: Abstraction has 422 states and 535 transitions. [2024-10-24 15:54:52,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 50 states have (on average 3.2) internal successors, (160), 52 states have internal predecessors, (160), 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) [2024-10-24 15:54:52,009 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 535 transitions. [2024-10-24 15:54:52,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-10-24 15:54:52,010 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 15:54:52,010 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] [2024-10-24 15:54:52,035 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-10-24 15:54:52,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 15:54:52,211 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-24 15:54:52,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:54:52,212 INFO L85 PathProgramCache]: Analyzing trace with hash -2083827141, now seen corresponding path program 3 times [2024-10-24 15:54:52,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 15:54:52,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [777234528] [2024-10-24 15:54:52,213 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-24 15:54:52,213 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 15:54:52,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 15:54:52,216 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 15:54:52,217 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-10-24 15:54:52,728 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-24 15:54:52,729 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 15:54:52,740 INFO L255 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 15:54:52,743 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:54:52,875 INFO L134 CoverageAnalysis]: Checked inductivity of 4375 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4373 trivial. 0 not checked. [2024-10-24 15:54:52,875 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:54:52,875 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 15:54:52,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [777234528] [2024-10-24 15:54:52,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [777234528] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:54:52,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:54:52,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 15:54:52,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883978180] [2024-10-24 15:54:52,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:54:52,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 15:54:52,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 15:54:52,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 15:54:52,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 15:54:52,876 INFO L87 Difference]: Start difference. First operand 422 states and 535 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 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) [2024-10-24 15:54:57,127 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 [] [2024-10-24 15:55:01,134 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 [] [2024-10-24 15:55:02,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 15:55:02,626 INFO L93 Difference]: Finished difference Result 523 states and 662 transitions. [2024-10-24 15:55:02,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 15:55:02,629 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 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 208 [2024-10-24 15:55:02,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 15:55:02,631 INFO L225 Difference]: With dead ends: 523 [2024-10-24 15:55:02,631 INFO L226 Difference]: Without dead ends: 523 [2024-10-24 15:55:02,631 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 15:55:02,631 INFO L432 NwaCegarLoop]: 261 mSDtfsCounter, 406 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2024-10-24 15:55:02,631 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 485 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 89 Invalid, 2 Unknown, 0 Unchecked, 9.7s Time] [2024-10-24 15:55:02,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2024-10-24 15:55:02,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 510. [2024-10-24 15:55:02,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 494 states have (on average 1.2550607287449393) internal successors, (620), 502 states have internal predecessors, (620), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-10-24 15:55:02,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 639 transitions. [2024-10-24 15:55:02,640 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 639 transitions. Word has length 208 [2024-10-24 15:55:02,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 15:55:02,640 INFO L471 AbstractCegarLoop]: Abstraction has 510 states and 639 transitions. [2024-10-24 15:55:02,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 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) [2024-10-24 15:55:02,641 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 639 transitions. [2024-10-24 15:55:02,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-10-24 15:55:02,642 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 15:55:02,642 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] [2024-10-24 15:55:02,653 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2024-10-24 15:55:02,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 15:55:02,843 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-24 15:55:02,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:55:02,844 INFO L85 PathProgramCache]: Analyzing trace with hash 2120232453, now seen corresponding path program 1 times [2024-10-24 15:55:02,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 15:55:02,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1973638022] [2024-10-24 15:55:02,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:55:02,845 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 15:55:02,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 15:55:02,847 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 15:55:02,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-10-24 15:55:04,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:55:04,393 INFO L255 TraceCheckSpWp]: Trace formula consists of 1563 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-10-24 15:55:04,396 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:55:05,751 INFO L134 CoverageAnalysis]: Checked inductivity of 4375 backedges. 2208 proven. 1176 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2024-10-24 15:55:05,752 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 15:55:10,443 INFO L134 CoverageAnalysis]: Checked inductivity of 4375 backedges. 2208 proven. 1176 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2024-10-24 15:55:10,444 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 15:55:10,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1973638022] [2024-10-24 15:55:10,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1973638022] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 15:55:10,444 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 15:55:10,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52] total 102 [2024-10-24 15:55:10,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880577996] [2024-10-24 15:55:10,444 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 15:55:10,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2024-10-24 15:55:10,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 15:55:10,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2024-10-24 15:55:10,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2701, Invalid=7601, Unknown=0, NotChecked=0, Total=10302 [2024-10-24 15:55:10,447 INFO L87 Difference]: Start difference. First operand 510 states and 639 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) [2024-10-24 15:55:36,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 15:55:36,833 INFO L93 Difference]: Finished difference Result 566 states and 748 transitions. [2024-10-24 15:55:36,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2024-10-24 15:55:36,834 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 [2024-10-24 15:55:36,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 15:55:36,835 INFO L225 Difference]: With dead ends: 566 [2024-10-24 15:55:36,835 INFO L226 Difference]: Without dead ends: 566 [2024-10-24 15:55:36,843 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 527 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 197 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7008 ImplicationChecksByTransitivity, 26.1s TimeCoverageRelationStatistics Valid=12595, Invalid=26807, Unknown=0, NotChecked=0, Total=39402 [2024-10-24 15:55:36,844 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 57 mSDsluCounter, 11953 mSDsCounter, 0 mSdLazyCounter, 5399 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 12195 SdHoareTripleChecker+Invalid, 5454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 5399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-10-24 15:55:36,845 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 12195 Invalid, 5454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 5399 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-10-24 15:55:36,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2024-10-24 15:55:36,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 564. [2024-10-24 15:55:36,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 548 states have (on average 1.3266423357664234) internal successors, (727), 556 states have internal predecessors, (727), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-10-24 15:55:36,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 746 transitions. [2024-10-24 15:55:36,853 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 746 transitions. Word has length 216 [2024-10-24 15:55:36,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 15:55:36,854 INFO L471 AbstractCegarLoop]: Abstraction has 564 states and 746 transitions. [2024-10-24 15:55:36,854 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) [2024-10-24 15:55:36,854 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 746 transitions. [2024-10-24 15:55:36,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2024-10-24 15:55:36,856 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 15:55:36,856 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] [2024-10-24 15:55:36,878 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 [2024-10-24 15:55:37,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 15:55:37,057 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-24 15:55:37,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:55:37,057 INFO L85 PathProgramCache]: Analyzing trace with hash 790300837, now seen corresponding path program 2 times [2024-10-24 15:55:37,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 15:55:37,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [448964906] [2024-10-24 15:55:37,058 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 15:55:37,058 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 15:55:37,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 15:55:37,059 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 15:55:37,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-10-24 15:55:39,000 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 15:55:39,001 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 15:55:39,059 INFO L255 TraceCheckSpWp]: Trace formula consists of 2113 conjuncts, 101 conjuncts are in the unsatisfiable core [2024-10-24 15:55:39,064 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:55:44,052 INFO L134 CoverageAnalysis]: Checked inductivity of 10300 backedges. 4458 proven. 4851 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2024-10-24 15:55:44,052 INFO L311 TraceCheckSpWp]: Computing backward predicates...