./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_FNV_test7-2.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_FNV_test7-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ef232f94cb2adf03185aed5adfaef3f0eb9593ee06bfb5b3fbb6e4bc1dd6d041 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 15:49:07,936 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 15:49:08,009 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-10-24 15:49:08,016 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 15:49:08,016 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 15:49:08,038 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 15:49:08,039 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 15:49:08,039 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 15:49:08,040 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 15:49:08,042 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 15:49:08,042 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 15:49:08,043 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 15:49:08,044 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 15:49:08,046 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 15:49:08,049 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 15:49:08,049 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 15:49:08,050 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 15:49:08,050 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 15:49:08,050 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 15:49:08,050 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 15:49:08,051 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 15:49:08,053 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 15:49:08,053 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 15:49:08,054 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 15:49:08,054 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 15:49:08,054 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 15:49:08,054 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 15:49:08,055 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 15:49:08,055 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 15:49:08,055 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 15:49:08,056 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 15:49:08,056 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 15:49:08,056 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 15:49:08,056 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 15:49:08,057 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 15:49:08,057 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 15:49:08,057 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:49:08,057 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 15:49:08,058 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 15:49:08,058 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 15:49:08,058 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 15:49:08,060 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 15:49:08,060 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 15:49:08,060 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 15:49:08,061 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 15:49:08,061 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef232f94cb2adf03185aed5adfaef3f0eb9593ee06bfb5b3fbb6e4bc1dd6d041 [2024-10-24 15:49:08,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 15:49:08,396 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 15:49:08,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 15:49:08,401 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 15:49:08,401 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 15:49:08,403 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-2.i [2024-10-24 15:49:09,840 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 15:49:10,192 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 15:49:10,193 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-2.i [2024-10-24 15:49:10,210 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/190d4f97a/927ac4be94f248139d4cd99219405b4e/FLAG2aaab8c73 [2024-10-24 15:49:10,456 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/190d4f97a/927ac4be94f248139d4cd99219405b4e [2024-10-24 15:49:10,458 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 15:49:10,459 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 15:49:10,460 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 15:49:10,460 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 15:49:10,466 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 15:49:10,466 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:49:10" (1/1) ... [2024-10-24 15:49:10,467 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73d1ceb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:49:10, skipping insertion in model container [2024-10-24 15:49:10,468 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:49:10" (1/1) ... [2024-10-24 15:49:10,531 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 15:49:11,058 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:49:11,073 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 15:49:11,073 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@a49a6fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:49:11, skipping insertion in model container [2024-10-24 15:49:11,073 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 15:49:11,074 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-10-24 15:49:11,079 INFO L158 Benchmark]: Toolchain (without parser) took 615.56ms. Allocated memory is still 159.4MB. Free memory was 119.7MB in the beginning and 97.3MB in the end (delta: 22.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-24 15:49:11,080 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 159.4MB. Free memory was 128.4MB in the beginning and 128.3MB in the end (delta: 140.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 15:49:11,080 INFO L158 Benchmark]: CACSL2BoogieTranslator took 613.70ms. Allocated memory is still 159.4MB. Free memory was 119.7MB in the beginning and 97.8MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-24 15:49:11,081 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 159.4MB. Free memory was 128.4MB in the beginning and 128.3MB in the end (delta: 140.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 613.70ms. Allocated memory is still 159.4MB. Free memory was 119.7MB in the beginning and 97.8MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 716]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ef232f94cb2adf03185aed5adfaef3f0eb9593ee06bfb5b3fbb6e4bc1dd6d041 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 15:49:13,232 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 15:49:13,317 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2024-10-24 15:49:13,324 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 15:49:13,325 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 15:49:13,358 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 15:49:13,362 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 15:49:13,362 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 15:49:13,363 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 15:49:13,364 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 15:49:13,364 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 15:49:13,364 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 15:49:13,365 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 15:49:13,366 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 15:49:13,366 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 15:49:13,367 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 15:49:13,367 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 15:49:13,367 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 15:49:13,368 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 15:49:13,368 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 15:49:13,368 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 15:49:13,374 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 15:49:13,375 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 15:49:13,375 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 15:49:13,375 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 15:49:13,376 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 15:49:13,376 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 15:49:13,376 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-24 15:49:13,376 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 15:49:13,377 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-24 15:49:13,378 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 15:49:13,378 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 15:49:13,379 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 15:49:13,379 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 15:49:13,379 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 15:49:13,380 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 15:49:13,380 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 15:49:13,380 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 15:49:13,380 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:49:13,381 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 15:49:13,381 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 15:49:13,382 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-24 15:49:13,382 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-24 15:49:13,382 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 15:49:13,383 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 15:49:13,383 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 15:49:13,383 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 15:49:13,383 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-24 15:49:13,384 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef232f94cb2adf03185aed5adfaef3f0eb9593ee06bfb5b3fbb6e4bc1dd6d041 [2024-10-24 15:49:13,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 15:49:13,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 15:49:13,750 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 15:49:13,751 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 15:49:13,752 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 15:49:13,753 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-2.i [2024-10-24 15:49:15,264 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 15:49:15,563 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 15:49:15,565 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-2.i [2024-10-24 15:49:15,598 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00c082299/56c2670a073541ff81e8bfc5a733d80e/FLAGb26a823bb [2024-10-24 15:49:15,617 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00c082299/56c2670a073541ff81e8bfc5a733d80e [2024-10-24 15:49:15,620 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 15:49:15,623 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 15:49:15,624 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 15:49:15,626 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 15:49:15,631 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 15:49:15,632 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:49:15" (1/1) ... [2024-10-24 15:49:15,633 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f9ab858 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:49:15, skipping insertion in model container [2024-10-24 15:49:15,633 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:49:15" (1/1) ... [2024-10-24 15:49:15,709 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 15:49:16,303 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:49:16,315 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-10-24 15:49:16,333 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 15:49:16,434 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:49:16,453 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 15:49:16,574 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:49:16,624 INFO L204 MainTranslator]: Completed translation [2024-10-24 15:49:16,624 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:49:16 WrapperNode [2024-10-24 15:49:16,624 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 15:49:16,625 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 15:49:16,625 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 15:49:16,626 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 15:49:16,632 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:49:16" (1/1) ... [2024-10-24 15:49:16,670 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:49:16" (1/1) ... [2024-10-24 15:49:16,769 INFO L138 Inliner]: procedures = 179, calls = 323, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1176 [2024-10-24 15:49:16,770 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 15:49:16,770 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 15:49:16,772 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 15:49:16,772 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 15:49:16,783 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:49:16" (1/1) ... [2024-10-24 15:49:16,784 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:49:16" (1/1) ... [2024-10-24 15:49:16,805 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:49:16" (1/1) ... [2024-10-24 15:49:16,914 INFO L175 MemorySlicer]: Split 301 memory accesses to 3 slices as follows [2, 265, 34]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 62 writes are split as follows [0, 58, 4]. [2024-10-24 15:49:16,915 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:49:16" (1/1) ... [2024-10-24 15:49:16,915 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:49:16" (1/1) ... [2024-10-24 15:49:16,962 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:49:16" (1/1) ... [2024-10-24 15:49:16,973 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:49:16" (1/1) ... [2024-10-24 15:49:16,983 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:49:16" (1/1) ... [2024-10-24 15:49:16,993 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:49:16" (1/1) ... [2024-10-24 15:49:17,029 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 15:49:17,031 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 15:49:17,031 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 15:49:17,031 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 15:49:17,032 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:49:16" (1/1) ... [2024-10-24 15:49:17,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:49:17,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:49:17,081 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 15:49:17,085 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 15:49:17,134 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-10-24 15:49:17,134 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-10-24 15:49:17,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-10-24 15:49:17,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-10-24 15:49:17,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-10-24 15:49:17,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-24 15:49:17,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-24 15:49:17,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-24 15:49:17,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-10-24 15:49:17,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-10-24 15:49:17,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-10-24 15:49:17,137 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-10-24 15:49:17,137 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-10-24 15:49:17,137 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-10-24 15:49:17,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-24 15:49:17,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 15:49:17,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-24 15:49:17,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-24 15:49:17,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-24 15:49:17,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-24 15:49:17,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-24 15:49:17,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-24 15:49:17,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-24 15:49:17,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 15:49:17,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-24 15:49:17,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-24 15:49:17,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-24 15:49:17,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-24 15:49:17,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-24 15:49:17,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-24 15:49:17,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 15:49:17,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 15:49:17,387 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 15:49:17,389 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 15:49:25,703 INFO L? ?]: Removed 140 outVars from TransFormulas that were not future-live. [2024-10-24 15:49:25,704 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 15:49:25,747 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 15:49:25,748 INFO L314 CfgBuilder]: Removed 72 assume(true) statements. [2024-10-24 15:49:25,749 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:49:25 BoogieIcfgContainer [2024-10-24 15:49:25,749 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 15:49:25,752 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 15:49:25,753 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 15:49:25,756 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 15:49:25,756 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:49:15" (1/3) ... [2024-10-24 15:49:25,757 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12c6a14b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:49:25, skipping insertion in model container [2024-10-24 15:49:25,757 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:49:16" (2/3) ... [2024-10-24 15:49:25,757 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12c6a14b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:49:25, skipping insertion in model container [2024-10-24 15:49:25,758 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:49:25" (3/3) ... [2024-10-24 15:49:25,759 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test7-2.i [2024-10-24 15:49:25,775 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 15:49:25,775 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-24 15:49:25,824 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:49:25,830 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;@1874c35c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:49:25,831 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-24 15:49:25,836 INFO L276 IsEmpty]: Start isEmpty. Operand has 224 states, 214 states have (on average 1.6775700934579438) internal successors, (359), 217 states have internal predecessors, (359), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-24 15:49:25,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-24 15:49:25,843 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 15:49:25,843 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:49:25,844 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-24 15:49:25,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:49:25,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1929215884, now seen corresponding path program 1 times [2024-10-24 15:49:25,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 15:49:25,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1955106571] [2024-10-24 15:49:25,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:49:25,860 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 15:49:25,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 15:49:25,862 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 15:49:25,881 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 15:49:26,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:49:26,083 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-24 15:49:26,088 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:49:26,115 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 15:49:26,116 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:49:26,116 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 15:49:26,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1955106571] [2024-10-24 15:49:26,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1955106571] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:49:26,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:49:26,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:49:26,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202884575] [2024-10-24 15:49:26,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:49:26,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 15:49:26,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 15:49:26,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 15:49:26,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 15:49:26,153 INFO L87 Difference]: Start difference. First operand has 224 states, 214 states have (on average 1.6775700934579438) internal successors, (359), 217 states have internal predecessors, (359), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:49:26,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 15:49:26,224 INFO L93 Difference]: Finished difference Result 221 states and 287 transitions. [2024-10-24 15:49:26,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 15:49:26,234 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-10-24 15:49:26,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 15:49:26,242 INFO L225 Difference]: With dead ends: 221 [2024-10-24 15:49:26,243 INFO L226 Difference]: Without dead ends: 220 [2024-10-24 15:49:26,244 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 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 15:49:26,247 INFO L432 NwaCegarLoop]: 283 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, 283 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 15:49:26,248 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 283 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 15:49:26,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2024-10-24 15:49:26,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2024-10-24 15:49:26,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 212 states have (on average 1.3113207547169812) internal successors, (278), 214 states have internal predecessors, (278), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 15:49:26,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 286 transitions. [2024-10-24 15:49:26,289 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 286 transitions. Word has length 9 [2024-10-24 15:49:26,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 15:49:26,289 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 286 transitions. [2024-10-24 15:49:26,290 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:49:26,290 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 286 transitions. [2024-10-24 15:49:26,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-24 15:49:26,290 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 15:49:26,290 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:49:26,297 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 15:49:26,496 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 15:49:26,497 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-24 15:49:26,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:49:26,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1512525233, now seen corresponding path program 1 times [2024-10-24 15:49:26,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 15:49:26,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [579462949] [2024-10-24 15:49:26,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:49:26,498 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 15:49:26,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 15:49:26,501 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 15:49:26,502 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 15:49:26,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:49:26,693 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 15:49:26,695 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:49:26,810 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 15:49:26,810 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:49:26,811 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 15:49:26,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [579462949] [2024-10-24 15:49:26,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [579462949] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:49:26,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:49:26,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 15:49:26,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299100548] [2024-10-24 15:49:26,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:49:26,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 15:49:26,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 15:49:26,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 15:49:26,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 15:49:26,814 INFO L87 Difference]: Start difference. First operand 220 states and 286 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:49:29,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-24 15:49:31,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 15:49:31,964 INFO L93 Difference]: Finished difference Result 366 states and 476 transitions. [2024-10-24 15:49:31,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 15:49:31,967 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-10-24 15:49:31,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 15:49:31,969 INFO L225 Difference]: With dead ends: 366 [2024-10-24 15:49:31,969 INFO L226 Difference]: Without dead ends: 366 [2024-10-24 15:49:31,969 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 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 15:49:31,981 INFO L432 NwaCegarLoop]: 289 mSDtfsCounter, 181 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-10-24 15:49:31,983 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 795 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-10-24 15:49:31,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2024-10-24 15:49:32,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 334. [2024-10-24 15:49:32,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 326 states have (on average 1.3098159509202454) internal successors, (427), 328 states have internal predecessors, (427), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 15:49:32,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 435 transitions. [2024-10-24 15:49:32,004 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 435 transitions. Word has length 11 [2024-10-24 15:49:32,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 15:49:32,004 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 435 transitions. [2024-10-24 15:49:32,005 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:49:32,005 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 435 transitions. [2024-10-24 15:49:32,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-24 15:49:32,005 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 15:49:32,005 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:49:32,013 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 (3)] Ended with exit code 0 [2024-10-24 15:49:32,206 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 15:49:32,207 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-24 15:49:32,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:49:32,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1912523919, now seen corresponding path program 1 times [2024-10-24 15:49:32,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 15:49:32,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [859396454] [2024-10-24 15:49:32,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:49:32,208 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 15:49:32,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 15:49:32,210 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 15:49:32,211 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 15:49:32,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:49:32,380 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-24 15:49:32,383 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:49:32,412 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-24 15:49:32,413 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-24 15:49:32,413 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-24 15:49:32,423 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 15:49:32,500 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:49:32,501 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 15:49:32,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:49:32,521 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:49:32,522 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 15:49:32,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [859396454] [2024-10-24 15:49:32,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [859396454] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:49:32,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:49:32,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 15:49:32,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613882341] [2024-10-24 15:49:32,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:49:32,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 15:49:32,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 15:49:32,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 15:49:32,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 15:49:32,525 INFO L87 Difference]: Start difference. First operand 334 states and 435 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 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 15:49:32,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 15:49:32,992 INFO L93 Difference]: Finished difference Result 527 states and 690 transitions. [2024-10-24 15:49:32,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 15:49:32,993 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 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 14 [2024-10-24 15:49:32,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 15:49:32,995 INFO L225 Difference]: With dead ends: 527 [2024-10-24 15:49:32,995 INFO L226 Difference]: Without dead ends: 527 [2024-10-24 15:49:32,995 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 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 15:49:32,996 INFO L432 NwaCegarLoop]: 263 mSDtfsCounter, 263 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 15:49:32,997 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 783 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 15:49:32,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2024-10-24 15:49:33,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 333. [2024-10-24 15:49:33,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 325 states have (on average 1.3076923076923077) internal successors, (425), 327 states have internal predecessors, (425), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 15:49:33,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 433 transitions. [2024-10-24 15:49:33,022 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 433 transitions. Word has length 14 [2024-10-24 15:49:33,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 15:49:33,022 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 433 transitions. [2024-10-24 15:49:33,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 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 15:49:33,022 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 433 transitions. [2024-10-24 15:49:33,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-24 15:49:33,025 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 15:49:33,025 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:49:33,031 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 15:49:33,225 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 15:49:33,226 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-24 15:49:33,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:49:33,227 INFO L85 PathProgramCache]: Analyzing trace with hash -5702684, now seen corresponding path program 1 times [2024-10-24 15:49:33,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 15:49:33,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1972643059] [2024-10-24 15:49:33,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:49:33,228 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 15:49:33,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 15:49:33,229 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 15:49:33,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-10-24 15:49:33,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:49:33,662 INFO L255 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 15:49:33,666 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:49:33,696 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-24 15:49:33,696 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:49:33,697 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 15:49:33,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1972643059] [2024-10-24 15:49:33,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1972643059] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:49:33,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:49:33,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 15:49:33,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209567385] [2024-10-24 15:49:33,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:49:33,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 15:49:33,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 15:49:33,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 15:49:33,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 15:49:33,700 INFO L87 Difference]: Start difference. First operand 333 states and 433 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, (3), 1 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 15:49:33,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 15:49:33,854 INFO L93 Difference]: Finished difference Result 339 states and 423 transitions. [2024-10-24 15:49:33,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 15:49:33,854 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, (3), 1 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 80 [2024-10-24 15:49:33,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 15:49:33,856 INFO L225 Difference]: With dead ends: 339 [2024-10-24 15:49:33,856 INFO L226 Difference]: Without dead ends: 339 [2024-10-24 15:49:33,856 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 77 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 15:49:33,857 INFO L432 NwaCegarLoop]: 253 mSDtfsCounter, 30 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 742 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 15:49:33,857 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 742 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 15:49:33,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-10-24 15:49:33,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 339. [2024-10-24 15:49:33,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 331 states have (on average 1.2537764350453173) internal successors, (415), 333 states have internal predecessors, (415), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 15:49:33,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 423 transitions. [2024-10-24 15:49:33,867 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 423 transitions. Word has length 80 [2024-10-24 15:49:33,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 15:49:33,867 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 423 transitions. [2024-10-24 15:49:33,867 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, (3), 1 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 15:49:33,867 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 423 transitions. [2024-10-24 15:49:33,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-24 15:49:33,869 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 15:49:33,869 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:49:33,883 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 (5)] Forceful destruction successful, exit code 0 [2024-10-24 15:49:34,070 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 15:49:34,071 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-24 15:49:34,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:49:34,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1111631016, now seen corresponding path program 1 times [2024-10-24 15:49:34,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 15:49:34,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1869380967] [2024-10-24 15:49:34,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:49:34,073 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 15:49:34,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 15:49:34,075 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 15:49:34,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-10-24 15:49:34,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:49:34,541 INFO L255 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 15:49:34,545 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:49:34,572 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 15:49:34,572 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:49:34,572 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 15:49:34,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1869380967] [2024-10-24 15:49:34,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1869380967] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:49:34,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:49:34,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 15:49:34,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581486717] [2024-10-24 15:49:34,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:49:34,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 15:49:34,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 15:49:34,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 15:49:34,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 15:49:34,575 INFO L87 Difference]: Start difference. First operand 339 states and 423 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, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 15:49:34,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 15:49:34,643 INFO L93 Difference]: Finished difference Result 341 states and 426 transitions. [2024-10-24 15:49:34,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 15:49:34,644 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, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 80 [2024-10-24 15:49:34,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 15:49:34,647 INFO L225 Difference]: With dead ends: 341 [2024-10-24 15:49:34,647 INFO L226 Difference]: Without dead ends: 341 [2024-10-24 15:49:34,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 77 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 15:49:34,648 INFO L432 NwaCegarLoop]: 270 mSDtfsCounter, 0 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 806 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 15:49:34,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 806 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 15:49:34,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2024-10-24 15:49:34,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2024-10-24 15:49:34,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 332 states have (on average 1.2560240963855422) internal successors, (417), 335 states have internal predecessors, (417), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-24 15:49:34,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 426 transitions. [2024-10-24 15:49:34,660 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 426 transitions. Word has length 80 [2024-10-24 15:49:34,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 15:49:34,660 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 426 transitions. [2024-10-24 15:49:34,660 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, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 15:49:34,660 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 426 transitions. [2024-10-24 15:49:34,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-24 15:49:34,664 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 15:49:34,665 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:49:34,676 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 (6)] Forceful destruction successful, exit code 0 [2024-10-24 15:49:34,865 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 15:49:34,866 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-24 15:49:34,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:49:34,867 INFO L85 PathProgramCache]: Analyzing trace with hash -367712378, now seen corresponding path program 1 times [2024-10-24 15:49:34,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 15:49:34,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1480748245] [2024-10-24 15:49:34,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:49:34,868 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 15:49:34,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 15:49:34,871 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 15:49:34,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-10-24 15:49:35,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:49:35,379 INFO L255 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 15:49:35,383 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:49:35,421 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 15:49:35,422 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 15:49:35,532 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 15:49:35,532 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 15:49:35,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1480748245] [2024-10-24 15:49:35,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1480748245] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 15:49:35,532 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 15:49:35,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-10-24 15:49:35,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784785062] [2024-10-24 15:49:35,533 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 15:49:35,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 15:49:35,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 15:49:35,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 15:49:35,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-24 15:49:35,534 INFO L87 Difference]: Start difference. First operand 341 states and 426 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, (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 15:49:35,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 15:49:35,774 INFO L93 Difference]: Finished difference Result 350 states and 440 transitions. [2024-10-24 15:49:35,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 15:49:35,776 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, (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 82 [2024-10-24 15:49:35,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 15:49:35,777 INFO L225 Difference]: With dead ends: 350 [2024-10-24 15:49:35,777 INFO L226 Difference]: Without dead ends: 350 [2024-10-24 15:49:35,778 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 156 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 15:49:35,778 INFO L432 NwaCegarLoop]: 270 mSDtfsCounter, 4 mSDsluCounter, 1333 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1603 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 15:49:35,778 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1603 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 15:49:35,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-10-24 15:49:35,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 349. [2024-10-24 15:49:35,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 339 states have (on average 1.2684365781710913) internal successors, (430), 342 states have internal predecessors, (430), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-24 15:49:35,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 439 transitions. [2024-10-24 15:49:35,786 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 439 transitions. Word has length 82 [2024-10-24 15:49:35,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 15:49:35,787 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 439 transitions. [2024-10-24 15:49:35,787 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, (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 15:49:35,787 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 439 transitions. [2024-10-24 15:49:35,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-24 15:49:35,788 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 15:49:35,788 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] [2024-10-24 15:49:35,801 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 15:49:35,989 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 15:49:35,989 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-24 15:49:35,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:49:35,990 INFO L85 PathProgramCache]: Analyzing trace with hash 144644152, now seen corresponding path program 2 times [2024-10-24 15:49:35,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 15:49:35,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [802834963] [2024-10-24 15:49:35,991 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 15:49:35,991 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 15:49:35,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 15:49:35,994 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 15:49:35,995 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 15:49:36,302 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-24 15:49:36,302 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 15:49:36,307 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 15:49:36,311 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:49:36,327 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-24 15:49:36,327 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-24 15:49:36,328 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-24 15:49:36,330 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 15:49:36,390 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:49:36,391 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 15:49:36,412 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 15:49:36,415 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:49:36,415 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 15:49:36,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [802834963] [2024-10-24 15:49:36,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [802834963] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:49:36,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:49:36,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 15:49:36,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803126139] [2024-10-24 15:49:36,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:49:36,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 15:49:36,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 15:49:36,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 15:49:36,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 15:49:36,417 INFO L87 Difference]: Start difference. First operand 349 states and 439 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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 15:49:36,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 15:49:36,939 INFO L93 Difference]: Finished difference Result 509 states and 650 transitions. [2024-10-24 15:49:36,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 15:49:36,940 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), 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 86 [2024-10-24 15:49:36,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 15:49:36,942 INFO L225 Difference]: With dead ends: 509 [2024-10-24 15:49:36,942 INFO L226 Difference]: Without dead ends: 509 [2024-10-24 15:49:36,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 83 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 15:49:36,943 INFO L432 NwaCegarLoop]: 253 mSDtfsCounter, 207 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 15:49:36,943 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 753 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 15:49:36,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-10-24 15:49:36,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 351. [2024-10-24 15:49:36,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 341 states have (on average 1.2668621700879765) internal successors, (432), 344 states have internal predecessors, (432), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-24 15:49:36,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 441 transitions. [2024-10-24 15:49:36,953 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 441 transitions. Word has length 86 [2024-10-24 15:49:36,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 15:49:36,953 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 441 transitions. [2024-10-24 15:49:36,953 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), 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 15:49:36,953 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 441 transitions. [2024-10-24 15:49:36,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-24 15:49:36,955 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 15:49:36,955 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 15:49:36,961 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 15:49:37,155 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 15:49:37,156 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-24 15:49:37,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:49:37,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1669614630, now seen corresponding path program 1 times [2024-10-24 15:49:37,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 15:49:37,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1726295856] [2024-10-24 15:49:37,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:49:37,158 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 15:49:37,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 15:49:37,159 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 15:49:37,161 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 15:49:37,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:49:37,680 INFO L255 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-24 15:49:37,684 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:49:37,771 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 15:49:37,771 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 15:49:37,957 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 15:49:37,958 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 15:49:37,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1726295856] [2024-10-24 15:49:37,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1726295856] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 15:49:37,958 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 15:49:37,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-10-24 15:49:37,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156843663] [2024-10-24 15:49:37,958 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 15:49:37,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 15:49:37,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 15:49:37,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 15:49:37,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-10-24 15:49:37,960 INFO L87 Difference]: Start difference. First operand 351 states and 441 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 15:49:38,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 15:49:38,495 INFO L93 Difference]: Finished difference Result 363 states and 460 transitions. [2024-10-24 15:49:38,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-24 15:49:38,496 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 15:49:38,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 15:49:38,498 INFO L225 Difference]: With dead ends: 363 [2024-10-24 15:49:38,498 INFO L226 Difference]: Without dead ends: 361 [2024-10-24 15:49:38,499 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2024-10-24 15:49:38,499 INFO L432 NwaCegarLoop]: 270 mSDtfsCounter, 8 mSDsluCounter, 1604 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1874 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 15:49:38,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1874 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 15:49:38,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-10-24 15:49:38,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 360. [2024-10-24 15:49:38,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 350 states have (on average 1.2685714285714285) internal successors, (444), 353 states have internal predecessors, (444), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-24 15:49:38,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 453 transitions. [2024-10-24 15:49:38,510 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 453 transitions. Word has length 122 [2024-10-24 15:49:38,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 15:49:38,510 INFO L471 AbstractCegarLoop]: Abstraction has 360 states and 453 transitions. [2024-10-24 15:49:38,510 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 15:49:38,510 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 453 transitions. [2024-10-24 15:49:38,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 15:49:38,511 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 15:49:38,512 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 15:49:38,525 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 15:49:38,712 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 15:49:38,712 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-24 15:49:38,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:49:38,713 INFO L85 PathProgramCache]: Analyzing trace with hash -366140441, now seen corresponding path program 2 times [2024-10-24 15:49:38,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 15:49:38,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1146385476] [2024-10-24 15:49:38,714 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 15:49:38,714 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 15:49:38,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 15:49:38,715 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 15:49:38,716 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 15:49:39,072 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-24 15:49:39,073 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 15:49:39,078 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 15:49:39,080 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:49:39,103 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 15:49:39,104 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:49:39,104 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 15:49:39,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1146385476] [2024-10-24 15:49:39,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1146385476] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:49:39,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:49:39,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 15:49:39,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486246759] [2024-10-24 15:49:39,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:49:39,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 15:49:39,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 15:49:39,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 15:49:39,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 15:49:39,106 INFO L87 Difference]: Start difference. First operand 360 states and 453 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 15:49:39,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 15:49:39,263 INFO L93 Difference]: Finished difference Result 366 states and 443 transitions. [2024-10-24 15:49:39,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 15:49:39,263 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 15:49:39,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 15:49:39,265 INFO L225 Difference]: With dead ends: 366 [2024-10-24 15:49:39,265 INFO L226 Difference]: Without dead ends: 366 [2024-10-24 15:49:39,266 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 15:49:39,266 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 30 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 709 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 15:49:39,267 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 709 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 15:49:39,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2024-10-24 15:49:39,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2024-10-24 15:49:39,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 356 states have (on average 1.2191011235955056) internal successors, (434), 359 states have internal predecessors, (434), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-24 15:49:39,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 443 transitions. [2024-10-24 15:49:39,275 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 443 transitions. Word has length 131 [2024-10-24 15:49:39,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 15:49:39,275 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 443 transitions. [2024-10-24 15:49:39,275 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 15:49:39,275 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 443 transitions. [2024-10-24 15:49:39,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 15:49:39,276 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 15:49:39,277 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 15:49:39,285 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-10-24 15:49:39,477 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 15:49:39,477 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-24 15:49:39,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:49:39,478 INFO L85 PathProgramCache]: Analyzing trace with hash 983789403, now seen corresponding path program 1 times [2024-10-24 15:49:39,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 15:49:39,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1944730099] [2024-10-24 15:49:39,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:49:39,479 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 15:49:39,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 15:49:39,480 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 15:49:39,481 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 15:49:40,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:49:40,057 INFO L255 TraceCheckSpWp]: Trace formula consists of 697 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-24 15:49:40,060 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:49:40,258 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 15:49:40,258 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 15:49:40,956 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 15:49:40,957 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 15:49:40,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1944730099] [2024-10-24 15:49:40,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1944730099] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 15:49:40,957 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 15:49:40,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-10-24 15:49:40,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804876239] [2024-10-24 15:49:40,957 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 15:49:40,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-24 15:49:40,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 15:49:40,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-24 15:49:40,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-10-24 15:49:40,959 INFO L87 Difference]: Start difference. First operand 366 states and 443 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 15:49:42,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 15:49:42,602 INFO L93 Difference]: Finished difference Result 387 states and 480 transitions. [2024-10-24 15:49:42,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-10-24 15:49:42,604 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 15:49:42,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 15:49:42,607 INFO L225 Difference]: With dead ends: 387 [2024-10-24 15:49:42,607 INFO L226 Difference]: Without dead ends: 385 [2024-10-24 15:49:42,608 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2024-10-24 15:49:42,608 INFO L432 NwaCegarLoop]: 259 mSDtfsCounter, 14 mSDsluCounter, 2819 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 3078 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 15:49:42,609 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 3078 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 15:49:42,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2024-10-24 15:49:42,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 384. [2024-10-24 15:49:42,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 374 states have (on average 1.2245989304812834) internal successors, (458), 377 states have internal predecessors, (458), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-24 15:49:42,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 467 transitions. [2024-10-24 15:49:42,620 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 467 transitions. Word has length 131 [2024-10-24 15:49:42,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 15:49:42,620 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 467 transitions. [2024-10-24 15:49:42,620 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 15:49:42,620 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 467 transitions. [2024-10-24 15:49:42,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-10-24 15:49:42,622 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 15:49:42,622 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 15:49:42,637 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-10-24 15:49:42,825 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 15:49:42,826 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-24 15:49:42,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:49:42,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1269480635, now seen corresponding path program 2 times [2024-10-24 15:49:42,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 15:49:42,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [470896804] [2024-10-24 15:49:42,827 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 15:49:42,827 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 15:49:42,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 15:49:42,828 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 15:49:42,829 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 15:49:43,218 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-24 15:49:43,219 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 15:49:43,223 INFO L255 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 15:49:43,226 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:49:43,246 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 15:49:43,246 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:49:43,246 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 15:49:43,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [470896804] [2024-10-24 15:49:43,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [470896804] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:49:43,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:49:43,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 15:49:43,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203163178] [2024-10-24 15:49:43,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:49:43,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:49:43,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 15:49:43,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:49:43,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:49:43,248 INFO L87 Difference]: Start difference. First operand 384 states and 467 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 15:49:43,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 15:49:43,344 INFO L93 Difference]: Finished difference Result 384 states and 461 transitions. [2024-10-24 15:49:43,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:49:43,345 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 15:49:43,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 15:49:43,348 INFO L225 Difference]: With dead ends: 384 [2024-10-24 15:49:43,348 INFO L226 Difference]: Without dead ends: 384 [2024-10-24 15:49:43,348 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 15:49:43,349 INFO L432 NwaCegarLoop]: 255 mSDtfsCounter, 0 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 489 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 15:49:43,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 489 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 15:49:43,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2024-10-24 15:49:43,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 384. [2024-10-24 15:49:43,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 374 states have (on average 1.2085561497326203) internal successors, (452), 377 states have internal predecessors, (452), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-24 15:49:43,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 461 transitions. [2024-10-24 15:49:43,357 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 461 transitions. Word has length 149 [2024-10-24 15:49:43,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 15:49:43,357 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 461 transitions. [2024-10-24 15:49:43,357 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 15:49:43,358 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 461 transitions. [2024-10-24 15:49:43,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-10-24 15:49:43,360 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 15:49:43,360 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 15:49:43,365 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2024-10-24 15:49:43,564 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 15:49:43,565 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-24 15:49:43,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:49:43,566 INFO L85 PathProgramCache]: Analyzing trace with hash -2004418307, now seen corresponding path program 1 times [2024-10-24 15:49:43,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 15:49:43,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [843445945] [2024-10-24 15:49:43,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:49:43,567 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 15:49:43,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 15:49:43,570 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 15:49:43,571 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 15:49:44,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:49:44,205 INFO L255 TraceCheckSpWp]: Trace formula consists of 897 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-10-24 15:49:44,208 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:49:44,827 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 15:49:44,827 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 15:49:46,746 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 15:49:46,747 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 15:49:46,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [843445945] [2024-10-24 15:49:46,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [843445945] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 15:49:46,748 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 15:49:46,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2024-10-24 15:49:46,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366720129] [2024-10-24 15:49:46,748 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 15:49:46,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-10-24 15:49:46,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 15:49:46,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-10-24 15:49:46,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2024-10-24 15:49:46,753 INFO L87 Difference]: Start difference. First operand 384 states and 461 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 15:49:52,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 15:49:52,889 INFO L93 Difference]: Finished difference Result 421 states and 530 transitions. [2024-10-24 15:49:52,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-10-24 15:49:52,890 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 15:49:52,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 15:49:52,892 INFO L225 Difference]: With dead ends: 421 [2024-10-24 15:49:52,894 INFO L226 Difference]: Without dead ends: 419 [2024-10-24 15:49:52,896 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=2713, Invalid=5843, Unknown=0, NotChecked=0, Total=8556 [2024-10-24 15:49:52,897 INFO L432 NwaCegarLoop]: 259 mSDtfsCounter, 26 mSDsluCounter, 5890 mSDsCounter, 0 mSdLazyCounter, 1972 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 6149 SdHoareTripleChecker+Invalid, 2027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-24 15:49:52,897 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 6149 Invalid, 2027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1972 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-24 15:49:52,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2024-10-24 15:49:52,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 418. [2024-10-24 15:49:52,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 408 states have (on average 1.2205882352941178) internal successors, (498), 411 states have internal predecessors, (498), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-24 15:49:52,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 507 transitions. [2024-10-24 15:49:52,907 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 507 transitions. Word has length 149 [2024-10-24 15:49:52,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 15:49:52,907 INFO L471 AbstractCegarLoop]: Abstraction has 418 states and 507 transitions. [2024-10-24 15:49:52,907 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 15:49:52,907 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 507 transitions. [2024-10-24 15:49:52,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-10-24 15:49:52,909 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 15:49:52,910 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 15:49:52,927 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 15:49:53,110 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 15:49:53,111 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-24 15:49:53,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:49:53,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1176990179, now seen corresponding path program 2 times [2024-10-24 15:49:53,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 15:49:53,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [536714112] [2024-10-24 15:49:53,112 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 15:49:53,112 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 15:49:53,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 15:49:53,113 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 15:49:53,114 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 15:49:54,277 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 15:49:54,277 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 15:49:54,308 INFO L255 TraceCheckSpWp]: Trace formula consists of 1271 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-10-24 15:49:54,313 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:49:54,936 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 15:49:54,936 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 15:49:57,335 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 15:49:57,335 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 15:49:57,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [536714112] [2024-10-24 15:49:57,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [536714112] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 15:49:57,335 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 15:49:57,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 52 [2024-10-24 15:49:57,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572802602] [2024-10-24 15:49:57,336 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 15:49:57,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-10-24 15:49:57,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 15:49:57,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-10-24 15:49:57,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=726, Invalid=1926, Unknown=0, NotChecked=0, Total=2652 [2024-10-24 15:49:57,339 INFO L87 Difference]: Start difference. First operand 418 states and 507 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 15:50:05,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 15:50:05,671 INFO L93 Difference]: Finished difference Result 445 states and 559 transitions. [2024-10-24 15:50:05,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2024-10-24 15:50:05,672 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 15:50:05,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 15:50:05,674 INFO L225 Difference]: With dead ends: 445 [2024-10-24 15:50:05,675 INFO L226 Difference]: Without dead ends: 445 [2024-10-24 15:50:05,678 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1633 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=3146, Invalid=6556, Unknown=0, NotChecked=0, Total=9702 [2024-10-24 15:50:05,679 INFO L432 NwaCegarLoop]: 258 mSDtfsCounter, 26 mSDsluCounter, 6122 mSDsCounter, 0 mSdLazyCounter, 1446 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 6380 SdHoareTripleChecker+Invalid, 1477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-24 15:50:05,681 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 6380 Invalid, 1477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1446 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-24 15:50:05,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2024-10-24 15:50:05,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 443. [2024-10-24 15:50:05,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 433 states have (on average 1.2655889145496535) internal successors, (548), 436 states have internal predecessors, (548), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-24 15:50:05,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 557 transitions. [2024-10-24 15:50:05,693 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 557 transitions. Word has length 183 [2024-10-24 15:50:05,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 15:50:05,693 INFO L471 AbstractCegarLoop]: Abstraction has 443 states and 557 transitions. [2024-10-24 15:50:05,693 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 15:50:05,694 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 557 transitions. [2024-10-24 15:50:05,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-10-24 15:50:05,696 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 15:50:05,696 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 15:50:05,726 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 15:50:05,896 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 15:50:05,897 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-24 15:50:05,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:50:05,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1900963388, now seen corresponding path program 3 times [2024-10-24 15:50:05,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 15:50:05,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1081086186] [2024-10-24 15:50:05,898 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-24 15:50:05,899 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 15:50:05,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 15:50:05,900 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 15:50:05,901 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 15:50:06,530 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-24 15:50:06,531 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 15:50:06,543 INFO L255 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 15:50:06,547 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:50:06,865 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 15:50:06,866 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:50:06,866 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 15:50:06,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1081086186] [2024-10-24 15:50:06,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1081086186] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:50:06,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:50:06,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 15:50:06,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754160833] [2024-10-24 15:50:06,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:50:06,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 15:50:06,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 15:50:06,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 15:50:06,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 15:50:06,868 INFO L87 Difference]: Start difference. First operand 443 states and 557 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 15:50:11,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-24 15:50:15,218 WARN L539 Checker$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 15:50:17,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 15:50:17,337 INFO L93 Difference]: Finished difference Result 534 states and 664 transitions. [2024-10-24 15:50:17,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 15:50:17,340 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 15:50:17,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 15:50:17,343 INFO L225 Difference]: With dead ends: 534 [2024-10-24 15:50:17,343 INFO L226 Difference]: Without dead ends: 534 [2024-10-24 15:50:17,344 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 15:50:17,344 INFO L432 NwaCegarLoop]: 259 mSDtfsCounter, 398 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2024-10-24 15:50:17,345 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 477 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 100 Invalid, 2 Unknown, 0 Unchecked, 10.4s Time] [2024-10-24 15:50:17,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2024-10-24 15:50:17,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 531. [2024-10-24 15:50:17,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 521 states have (on average 1.251439539347409) internal successors, (652), 524 states have internal predecessors, (652), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-24 15:50:17,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 661 transitions. [2024-10-24 15:50:17,358 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 661 transitions. Word has length 208 [2024-10-24 15:50:17,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 15:50:17,358 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 661 transitions. [2024-10-24 15:50:17,358 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 15:50:17,359 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 661 transitions. [2024-10-24 15:50:17,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-10-24 15:50:17,361 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 15:50:17,361 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 15:50:17,378 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 15:50:17,562 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 15:50:17,562 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-24 15:50:17,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:50:17,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1944307706, now seen corresponding path program 1 times [2024-10-24 15:50:17,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 15:50:17,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1495397638] [2024-10-24 15:50:17,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:50:17,564 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 15:50:17,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 15:50:17,567 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 15:50:17,568 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 15:50:19,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:50:19,495 INFO L255 TraceCheckSpWp]: Trace formula consists of 1562 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-10-24 15:50:19,500 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:50:21,878 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 15:50:21,879 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 15:50:31,002 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 15:50:31,002 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 15:50:31,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1495397638] [2024-10-24 15:50:31,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1495397638] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 15:50:31,003 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 15:50:31,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52] total 102 [2024-10-24 15:50:31,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483217295] [2024-10-24 15:50:31,003 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 15:50:31,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2024-10-24 15:50:31,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 15:50:31,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2024-10-24 15:50:31,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2701, Invalid=7601, Unknown=0, NotChecked=0, Total=10302 [2024-10-24 15:50:31,007 INFO L87 Difference]: Start difference. First operand 531 states and 661 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)