./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 61a67961 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_test6-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8374eced2cbda6aab489eb004cb8e41f23aad88b98cd5c6913f13583171f2c3f --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 19:05:15,471 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 19:05:15,542 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-14 19:05:15,549 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 19:05:15,549 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 19:05:15,573 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 19:05:15,574 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 19:05:15,575 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 19:05:15,575 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 19:05:15,576 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 19:05:15,576 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 19:05:15,576 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 19:05:15,578 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 19:05:15,579 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 19:05:15,580 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 19:05:15,580 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 19:05:15,580 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 19:05:15,581 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 19:05:15,581 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 19:05:15,581 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 19:05:15,581 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-14 19:05:15,584 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-14 19:05:15,585 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-14 19:05:15,585 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 19:05:15,585 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-14 19:05:15,585 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 19:05:15,585 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 19:05:15,586 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 19:05:15,586 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 19:05:15,586 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 19:05:15,586 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 19:05:15,587 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 19:05:15,587 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 19:05:15,587 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 19:05:15,587 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 19:05:15,587 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 19:05:15,588 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 19:05:15,588 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 19:05:15,590 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 19:05:15,590 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 19:05:15,591 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 19:05:15,591 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 19:05:15,591 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8374eced2cbda6aab489eb004cb8e41f23aad88b98cd5c6913f13583171f2c3f [2024-10-14 19:05:15,855 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 19:05:15,880 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 19:05:15,882 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 19:05:15,884 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 19:05:15,884 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 19:05:15,885 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i [2024-10-14 19:05:17,324 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 19:05:17,609 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 19:05:17,609 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i [2024-10-14 19:05:17,634 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4340c1a7/e92678d4d8e74cb99b9307de107a61d0/FLAG4507b6dee [2024-10-14 19:05:17,646 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4340c1a7/e92678d4d8e74cb99b9307de107a61d0 [2024-10-14 19:05:17,649 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 19:05:17,650 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 19:05:17,653 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 19:05:17,653 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 19:05:17,658 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 19:05:17,659 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:05:17" (1/1) ... [2024-10-14 19:05:17,662 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77406f61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:05:17, skipping insertion in model container [2024-10-14 19:05:17,662 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:05:17" (1/1) ... [2024-10-14 19:05:17,718 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 19:05:18,381 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 19:05:18,393 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) [2024-10-14 19:05:18,394 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@47e89acd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:05:18, skipping insertion in model container [2024-10-14 19:05:18,394 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 19:05:18,394 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-10-14 19:05:18,396 INFO L158 Benchmark]: Toolchain (without parser) took 745.05ms. Allocated memory was 142.6MB in the beginning and 188.7MB in the end (delta: 46.1MB). Free memory was 85.1MB in the beginning and 154.1MB in the end (delta: -69.0MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. [2024-10-14 19:05:18,397 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 142.6MB. Free memory is still 116.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 19:05:18,397 INFO L158 Benchmark]: CACSL2BoogieTranslator took 741.00ms. Allocated memory was 142.6MB in the beginning and 188.7MB in the end (delta: 46.1MB). Free memory was 84.9MB in the beginning and 154.1MB in the end (delta: -69.2MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. [2024-10-14 19:05:18,399 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 142.6MB. Free memory is still 116.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 741.00ms. Allocated memory was 142.6MB in the beginning and 188.7MB in the end (delta: 46.1MB). Free memory was 84.9MB in the beginning and 154.1MB in the end (delta: -69.2MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 990]: 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_test6-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8374eced2cbda6aab489eb004cb8e41f23aad88b98cd5c6913f13583171f2c3f --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 19:05:20,374 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 19:05:20,450 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-10-14 19:05:20,454 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 19:05:20,454 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 19:05:20,487 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 19:05:20,490 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 19:05:20,490 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 19:05:20,490 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 19:05:20,491 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 19:05:20,491 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 19:05:20,492 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 19:05:20,492 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 19:05:20,493 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 19:05:20,493 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 19:05:20,493 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 19:05:20,495 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 19:05:20,495 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 19:05:20,497 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 19:05:20,498 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 19:05:20,498 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-14 19:05:20,498 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-14 19:05:20,498 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-14 19:05:20,499 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 19:05:20,499 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-14 19:05:20,499 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-14 19:05:20,499 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 19:05:20,499 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-14 19:05:20,500 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 19:05:20,500 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 19:05:20,500 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 19:05:20,500 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 19:05:20,500 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 19:05:20,501 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 19:05:20,501 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 19:05:20,501 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 19:05:20,501 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 19:05:20,511 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 19:05:20,511 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-14 19:05:20,511 INFO L153 SettingsManager]: * Command for external solver=cvc5 --incremental --print-success --lang smt [2024-10-14 19:05:20,511 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 19:05:20,512 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 19:05:20,512 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 19:05:20,513 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 19:05:20,513 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-14 19:05:20,514 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8374eced2cbda6aab489eb004cb8e41f23aad88b98cd5c6913f13583171f2c3f [2024-10-14 19:05:20,829 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 19:05:20,852 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 19:05:20,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 19:05:20,856 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 19:05:20,856 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 19:05:20,858 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i [2024-10-14 19:05:22,409 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 19:05:22,752 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 19:05:22,753 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i [2024-10-14 19:05:22,781 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa6832852/6b84d3b27a3545b3af45d755dca4df9b/FLAG1d796992e [2024-10-14 19:05:22,797 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa6832852/6b84d3b27a3545b3af45d755dca4df9b [2024-10-14 19:05:22,800 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 19:05:22,802 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 19:05:22,804 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 19:05:22,824 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 19:05:22,830 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 19:05:22,831 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:05:22" (1/1) ... [2024-10-14 19:05:22,832 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c995ae8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:05:22, skipping insertion in model container [2024-10-14 19:05:22,832 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:05:22" (1/1) ... [2024-10-14 19:05:22,896 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 19:05:23,490 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 19:05:23,508 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-10-14 19:05:23,523 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 19:05:23,615 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 19:05:23,625 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 19:05:23,719 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 19:05:23,802 INFO L204 MainTranslator]: Completed translation [2024-10-14 19:05:23,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:05:23 WrapperNode [2024-10-14 19:05:23,803 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 19:05:23,804 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 19:05:23,804 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 19:05:23,804 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 19:05:23,811 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:05:23" (1/1) ... [2024-10-14 19:05:23,858 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:05:23" (1/1) ... [2024-10-14 19:05:23,933 INFO L138 Inliner]: procedures = 285, calls = 290, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1069 [2024-10-14 19:05:23,936 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 19:05:23,937 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 19:05:23,937 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 19:05:23,937 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 19:05:23,948 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:05:23" (1/1) ... [2024-10-14 19:05:23,948 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:05:23" (1/1) ... [2024-10-14 19:05:23,965 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:05:23" (1/1) ... [2024-10-14 19:05:24,043 INFO L175 MemorySlicer]: Split 259 memory accesses to 4 slices as follows [2, 3, 34, 220]. 85 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 55 writes are split as follows [0, 2, 4, 49]. [2024-10-14 19:05:24,043 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:05:23" (1/1) ... [2024-10-14 19:05:24,044 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:05:23" (1/1) ... [2024-10-14 19:05:24,087 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:05:23" (1/1) ... [2024-10-14 19:05:24,099 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:05:23" (1/1) ... [2024-10-14 19:05:24,107 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:05:23" (1/1) ... [2024-10-14 19:05:24,116 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:05:23" (1/1) ... [2024-10-14 19:05:24,126 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 19:05:24,130 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 19:05:24,130 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 19:05:24,130 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 19:05:24,131 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:05:23" (1/1) ... [2024-10-14 19:05:24,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 19:05:24,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 19:05:24,160 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) [2024-10-14 19:05:24,162 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 [2024-10-14 19:05:24,198 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-10-14 19:05:24,199 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-10-14 19:05:24,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-10-14 19:05:24,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-10-14 19:05:24,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-10-14 19:05:24,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-10-14 19:05:24,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-14 19:05:24,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-14 19:05:24,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-14 19:05:24,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-10-14 19:05:24,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-14 19:05:24,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-14 19:05:24,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-14 19:05:24,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-14 19:05:24,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-14 19:05:24,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-14 19:05:24,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-14 19:05:24,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-14 19:05:24,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-14 19:05:24,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-10-14 19:05:24,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-14 19:05:24,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-14 19:05:24,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-14 19:05:24,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-10-14 19:05:24,218 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2024-10-14 19:05:24,218 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2024-10-14 19:05:24,218 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-14 19:05:24,218 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-14 19:05:24,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-14 19:05:24,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 19:05:24,218 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2024-10-14 19:05:24,218 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2024-10-14 19:05:24,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-14 19:05:24,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-14 19:05:24,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-14 19:05:24,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-14 19:05:24,219 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2024-10-14 19:05:24,219 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2024-10-14 19:05:24,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 19:05:24,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 19:05:24,497 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 19:05:24,499 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 19:05:28,030 INFO L? ?]: Removed 1086 outVars from TransFormulas that were not future-live. [2024-10-14 19:05:28,030 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 19:05:28,205 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 19:05:28,205 INFO L314 CfgBuilder]: Removed 63 assume(true) statements. [2024-10-14 19:05:28,206 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:05:28 BoogieIcfgContainer [2024-10-14 19:05:28,206 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 19:05:28,208 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 19:05:28,208 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 19:05:28,211 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 19:05:28,211 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:05:22" (1/3) ... [2024-10-14 19:05:28,212 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@589af99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:05:28, skipping insertion in model container [2024-10-14 19:05:28,212 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:05:23" (2/3) ... [2024-10-14 19:05:28,212 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@589af99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:05:28, skipping insertion in model container [2024-10-14 19:05:28,213 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:05:28" (3/3) ... [2024-10-14 19:05:28,215 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test6-1.i [2024-10-14 19:05:28,231 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 19:05:28,232 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 522 error locations. [2024-10-14 19:05:28,311 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 19:05:28,318 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;@453acc62, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 19:05:28,319 INFO L334 AbstractCegarLoop]: Starting to check reachability of 522 error locations. [2024-10-14 19:05:28,325 INFO L276 IsEmpty]: Start isEmpty. Operand has 977 states, 432 states have (on average 2.497685185185185) internal successors, (1079), 957 states have internal predecessors, (1079), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-14 19:05:28,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-10-14 19:05:28,331 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 19:05:28,332 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-10-14 19:05:28,332 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-14 19:05:28,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:05:28,337 INFO L85 PathProgramCache]: Analyzing trace with hash 55116, now seen corresponding path program 1 times [2024-10-14 19:05:28,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 19:05:28,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [533432207] [2024-10-14 19:05:28,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:05:28,353 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 [2024-10-14 19:05:28,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 19:05:28,356 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) [2024-10-14 19:05:28,369 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 [2024-10-14 19:05:28,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:05:28,532 INFO L255 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 19:05:28,537 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:05:28,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-14 19:05:28,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:05:28,618 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 19:05:28,619 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 19:05:28,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [533432207] [2024-10-14 19:05:28,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [533432207] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:05:28,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:05:28,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 19:05:28,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499242341] [2024-10-14 19:05:28,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:05:28,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 19:05:28,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 19:05:28,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 19:05:28,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 19:05:28,698 INFO L87 Difference]: Start difference. First operand has 977 states, 432 states have (on average 2.497685185185185) internal successors, (1079), 957 states have internal predecessors, (1079), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:05:30,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 19:05:30,283 INFO L93 Difference]: Finished difference Result 1048 states and 1118 transitions. [2024-10-14 19:05:30,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 19:05:30,287 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2024-10-14 19:05:30,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 19:05:30,303 INFO L225 Difference]: With dead ends: 1048 [2024-10-14 19:05:30,303 INFO L226 Difference]: Without dead ends: 1047 [2024-10-14 19:05:30,305 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 19:05:30,308 INFO L432 NwaCegarLoop]: 654 mSDtfsCounter, 649 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 652 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-14 19:05:30,310 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [652 Valid, 854 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-14 19:05:30,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2024-10-14 19:05:30,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 990. [2024-10-14 19:05:30,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 990 states, 460 states have (on average 2.3239130434782607) internal successors, (1069), 972 states have internal predecessors, (1069), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-14 19:05:30,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 990 states to 990 states and 1099 transitions. [2024-10-14 19:05:30,411 INFO L78 Accepts]: Start accepts. Automaton has 990 states and 1099 transitions. Word has length 2 [2024-10-14 19:05:30,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 19:05:30,411 INFO L471 AbstractCegarLoop]: Abstraction has 990 states and 1099 transitions. [2024-10-14 19:05:30,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:05:30,412 INFO L276 IsEmpty]: Start isEmpty. Operand 990 states and 1099 transitions. [2024-10-14 19:05:30,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-10-14 19:05:30,412 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 19:05:30,412 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-10-14 19:05:30,416 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 [2024-10-14 19:05:30,613 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 [2024-10-14 19:05:30,613 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-14 19:05:30,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:05:30,614 INFO L85 PathProgramCache]: Analyzing trace with hash 55117, now seen corresponding path program 1 times [2024-10-14 19:05:30,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 19:05:30,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1173623563] [2024-10-14 19:05:30,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:05:30,615 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 19:05:30,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 19:05:30,619 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) [2024-10-14 19:05:30,620 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 [2024-10-14 19:05:30,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:05:30,732 INFO L255 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 19:05:30,734 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:05:30,742 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-14 19:05:30,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:05:30,754 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 19:05:30,754 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 19:05:30,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1173623563] [2024-10-14 19:05:30,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1173623563] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:05:30,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:05:30,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 19:05:30,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368425641] [2024-10-14 19:05:30,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:05:30,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 19:05:30,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 19:05:30,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 19:05:30,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 19:05:30,757 INFO L87 Difference]: Start difference. First operand 990 states and 1099 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:05:32,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 19:05:32,966 INFO L93 Difference]: Finished difference Result 1355 states and 1501 transitions. [2024-10-14 19:05:32,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 19:05:32,966 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2024-10-14 19:05:32,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 19:05:32,971 INFO L225 Difference]: With dead ends: 1355 [2024-10-14 19:05:32,972 INFO L226 Difference]: Without dead ends: 1355 [2024-10-14 19:05:32,972 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 19:05:32,973 INFO L432 NwaCegarLoop]: 765 mSDtfsCounter, 389 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 1260 SdHoareTripleChecker+Invalid, 785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-14 19:05:32,974 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 1260 Invalid, 785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-14 19:05:32,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1355 states. [2024-10-14 19:05:33,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1355 to 1164. [2024-10-14 19:05:33,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1164 states, 633 states have (on average 2.2985781990521326) internal successors, (1455), 1144 states have internal predecessors, (1455), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-14 19:05:33,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1164 states to 1164 states and 1489 transitions. [2024-10-14 19:05:33,011 INFO L78 Accepts]: Start accepts. Automaton has 1164 states and 1489 transitions. Word has length 2 [2024-10-14 19:05:33,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 19:05:33,012 INFO L471 AbstractCegarLoop]: Abstraction has 1164 states and 1489 transitions. [2024-10-14 19:05:33,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:05:33,012 INFO L276 IsEmpty]: Start isEmpty. Operand 1164 states and 1489 transitions. [2024-10-14 19:05:33,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-14 19:05:33,013 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 19:05:33,013 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-14 19:05:33,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-10-14 19:05:33,213 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 [2024-10-14 19:05:33,214 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-14 19:05:33,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:05:33,215 INFO L85 PathProgramCache]: Analyzing trace with hash -636050060, now seen corresponding path program 1 times [2024-10-14 19:05:33,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 19:05:33,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1875813081] [2024-10-14 19:05:33,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:05:33,215 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 [2024-10-14 19:05:33,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 19:05:33,223 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) [2024-10-14 19:05:33,225 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 [2024-10-14 19:05:33,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:05:33,377 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 19:05:33,380 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:05:33,390 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-14 19:05:33,395 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-14 19:05:33,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 19:05:33,459 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-10-14 19:05:33,477 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-14 19:05:33,477 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-10-14 19:05:33,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:05:33,522 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 19:05:33,522 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 19:05:33,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1875813081] [2024-10-14 19:05:33,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1875813081] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:05:33,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:05:33,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 19:05:33,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790853287] [2024-10-14 19:05:33,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:05:33,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 19:05:33,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 19:05:33,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 19:05:33,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 19:05:33,527 INFO L87 Difference]: Start difference. First operand 1164 states and 1489 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:05:36,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 19:05:36,923 INFO L93 Difference]: Finished difference Result 1798 states and 2181 transitions. [2024-10-14 19:05:36,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 19:05:36,924 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-10-14 19:05:36,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 19:05:36,930 INFO L225 Difference]: With dead ends: 1798 [2024-10-14 19:05:36,930 INFO L226 Difference]: Without dead ends: 1798 [2024-10-14 19:05:36,930 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 19:05:36,931 INFO L432 NwaCegarLoop]: 505 mSDtfsCounter, 662 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 1824 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 666 SdHoareTripleChecker+Valid, 1235 SdHoareTripleChecker+Invalid, 1836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-10-14 19:05:36,934 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [666 Valid, 1235 Invalid, 1836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1824 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-10-14 19:05:36,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1798 states. [2024-10-14 19:05:36,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1798 to 1280. [2024-10-14 19:05:36,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1280 states, 749 states have (on average 2.281708945260347) internal successors, (1709), 1260 states have internal predecessors, (1709), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-14 19:05:36,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1280 states to 1280 states and 1743 transitions. [2024-10-14 19:05:36,961 INFO L78 Accepts]: Start accepts. Automaton has 1280 states and 1743 transitions. Word has length 6 [2024-10-14 19:05:36,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 19:05:36,962 INFO L471 AbstractCegarLoop]: Abstraction has 1280 states and 1743 transitions. [2024-10-14 19:05:36,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:05:36,962 INFO L276 IsEmpty]: Start isEmpty. Operand 1280 states and 1743 transitions. [2024-10-14 19:05:36,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-14 19:05:36,963 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 19:05:36,963 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:05:36,968 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 [2024-10-14 19:05:37,163 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 [2024-10-14 19:05:37,164 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-14 19:05:37,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:05:37,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1757284643, now seen corresponding path program 1 times [2024-10-14 19:05:37,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 19:05:37,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2085168693] [2024-10-14 19:05:37,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:05:37,166 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 [2024-10-14 19:05:37,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 19:05:37,169 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) [2024-10-14 19:05:37,171 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 [2024-10-14 19:05:37,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:05:37,292 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 19:05:37,293 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:05:37,308 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-14 19:05:37,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:05:37,320 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 19:05:37,320 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 19:05:37,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2085168693] [2024-10-14 19:05:37,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2085168693] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:05:37,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:05:37,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 19:05:37,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339061024] [2024-10-14 19:05:37,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:05:37,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 19:05:37,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 19:05:37,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 19:05:37,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 19:05:37,323 INFO L87 Difference]: Start difference. First operand 1280 states and 1743 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:05:38,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 19:05:38,816 INFO L93 Difference]: Finished difference Result 1754 states and 2445 transitions. [2024-10-14 19:05:38,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 19:05:38,817 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-10-14 19:05:38,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 19:05:38,824 INFO L225 Difference]: With dead ends: 1754 [2024-10-14 19:05:38,824 INFO L226 Difference]: Without dead ends: 1754 [2024-10-14 19:05:38,824 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 19:05:38,825 INFO L432 NwaCegarLoop]: 825 mSDtfsCounter, 830 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 833 SdHoareTripleChecker+Valid, 1066 SdHoareTripleChecker+Invalid, 860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-14 19:05:38,825 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [833 Valid, 1066 Invalid, 860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-14 19:05:38,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1754 states. [2024-10-14 19:05:38,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1754 to 1235. [2024-10-14 19:05:38,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1235 states, 749 states have (on average 2.202937249666222) internal successors, (1650), 1215 states have internal predecessors, (1650), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-14 19:05:38,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1235 states to 1235 states and 1684 transitions. [2024-10-14 19:05:38,851 INFO L78 Accepts]: Start accepts. Automaton has 1235 states and 1684 transitions. Word has length 7 [2024-10-14 19:05:38,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 19:05:38,852 INFO L471 AbstractCegarLoop]: Abstraction has 1235 states and 1684 transitions. [2024-10-14 19:05:38,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:05:38,852 INFO L276 IsEmpty]: Start isEmpty. Operand 1235 states and 1684 transitions. [2024-10-14 19:05:38,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-14 19:05:38,853 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 19:05:38,853 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:05:38,857 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-10-14 19:05:39,053 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 [2024-10-14 19:05:39,054 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-14 19:05:39,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:05:39,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1757284644, now seen corresponding path program 1 times [2024-10-14 19:05:39,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 19:05:39,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1731031579] [2024-10-14 19:05:39,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:05:39,055 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 [2024-10-14 19:05:39,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 19:05:39,059 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) [2024-10-14 19:05:39,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-10-14 19:05:39,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:05:39,183 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 19:05:39,184 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:05:39,195 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-14 19:05:39,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:05:39,225 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 19:05:39,225 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 19:05:39,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1731031579] [2024-10-14 19:05:39,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1731031579] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:05:39,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:05:39,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 19:05:39,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893417925] [2024-10-14 19:05:39,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:05:39,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 19:05:39,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 19:05:39,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 19:05:39,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 19:05:39,227 INFO L87 Difference]: Start difference. First operand 1235 states and 1684 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:05:41,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 19:05:41,101 INFO L93 Difference]: Finished difference Result 1809 states and 2458 transitions. [2024-10-14 19:05:41,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 19:05:41,102 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-10-14 19:05:41,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 19:05:41,107 INFO L225 Difference]: With dead ends: 1809 [2024-10-14 19:05:41,107 INFO L226 Difference]: Without dead ends: 1809 [2024-10-14 19:05:41,108 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 19:05:41,111 INFO L432 NwaCegarLoop]: 973 mSDtfsCounter, 633 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 831 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 635 SdHoareTripleChecker+Valid, 1338 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-14 19:05:41,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [635 Valid, 1338 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 831 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-14 19:05:41,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1809 states. [2024-10-14 19:05:41,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1809 to 1227. [2024-10-14 19:05:41,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1227 states, 751 states have (on average 2.1677762982689748) internal successors, (1628), 1207 states have internal predecessors, (1628), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-14 19:05:41,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1227 states to 1227 states and 1662 transitions. [2024-10-14 19:05:41,140 INFO L78 Accepts]: Start accepts. Automaton has 1227 states and 1662 transitions. Word has length 7 [2024-10-14 19:05:41,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 19:05:41,140 INFO L471 AbstractCegarLoop]: Abstraction has 1227 states and 1662 transitions. [2024-10-14 19:05:41,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:05:41,140 INFO L276 IsEmpty]: Start isEmpty. Operand 1227 states and 1662 transitions. [2024-10-14 19:05:41,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-14 19:05:41,141 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 19:05:41,141 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:05:41,146 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 [2024-10-14 19:05:41,341 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 [2024-10-14 19:05:41,342 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-14 19:05:41,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:05:41,343 INFO L85 PathProgramCache]: Analyzing trace with hash -2143508545, now seen corresponding path program 1 times [2024-10-14 19:05:41,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 19:05:41,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [629346714] [2024-10-14 19:05:41,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:05:41,343 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 [2024-10-14 19:05:41,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 19:05:41,344 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) [2024-10-14 19:05:41,345 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 [2024-10-14 19:05:41,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:05:41,474 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 19:05:41,476 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:05:41,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:05:41,567 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 19:05:41,568 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 19:05:41,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [629346714] [2024-10-14 19:05:41,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [629346714] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:05:41,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:05:41,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 19:05:41,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611011806] [2024-10-14 19:05:41,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:05:41,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 19:05:41,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 19:05:41,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 19:05:41,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 19:05:41,572 INFO L87 Difference]: Start difference. First operand 1227 states and 1662 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-10-14 19:05:42,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 19:05:42,713 INFO L93 Difference]: Finished difference Result 1627 states and 2172 transitions. [2024-10-14 19:05:42,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 19:05:42,714 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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 12 [2024-10-14 19:05:42,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 19:05:42,719 INFO L225 Difference]: With dead ends: 1627 [2024-10-14 19:05:42,719 INFO L226 Difference]: Without dead ends: 1627 [2024-10-14 19:05:42,719 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 19:05:42,720 INFO L432 NwaCegarLoop]: 918 mSDtfsCounter, 406 mSDsluCounter, 1607 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 2525 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-14 19:05:42,720 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 2525 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-14 19:05:42,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1627 states. [2024-10-14 19:05:42,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1627 to 1437. [2024-10-14 19:05:42,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1437 states, 961 states have (on average 2.1800208116545265) internal successors, (2095), 1417 states have internal predecessors, (2095), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-14 19:05:42,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1437 states to 1437 states and 2129 transitions. [2024-10-14 19:05:42,748 INFO L78 Accepts]: Start accepts. Automaton has 1437 states and 2129 transitions. Word has length 12 [2024-10-14 19:05:42,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 19:05:42,748 INFO L471 AbstractCegarLoop]: Abstraction has 1437 states and 2129 transitions. [2024-10-14 19:05:42,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-10-14 19:05:42,748 INFO L276 IsEmpty]: Start isEmpty. Operand 1437 states and 2129 transitions. [2024-10-14 19:05:42,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-14 19:05:42,749 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 19:05:42,749 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:05:42,754 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 (7)] Forceful destruction successful, exit code 0 [2024-10-14 19:05:42,949 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 [2024-10-14 19:05:42,950 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr322REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-14 19:05:42,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:05:42,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1554900703, now seen corresponding path program 1 times [2024-10-14 19:05:42,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 19:05:42,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [53947924] [2024-10-14 19:05:42,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:05:42,951 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 [2024-10-14 19:05:42,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 19:05:42,952 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) [2024-10-14 19:05:42,953 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 [2024-10-14 19:05:43,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:05:43,075 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-14 19:05:43,076 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:05:43,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:05:43,083 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 19:05:43,084 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 19:05:43,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [53947924] [2024-10-14 19:05:43,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [53947924] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:05:43,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:05:43,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 19:05:43,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977329669] [2024-10-14 19:05:43,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:05:43,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 19:05:43,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 19:05:43,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 19:05:43,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 19:05:43,085 INFO L87 Difference]: Start difference. First operand 1437 states and 2129 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:05:43,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 19:05:43,569 INFO L93 Difference]: Finished difference Result 1353 states and 1969 transitions. [2024-10-14 19:05:43,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 19:05:43,570 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-10-14 19:05:43,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 19:05:43,574 INFO L225 Difference]: With dead ends: 1353 [2024-10-14 19:05:43,574 INFO L226 Difference]: Without dead ends: 1353 [2024-10-14 19:05:43,574 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 19:05:43,575 INFO L432 NwaCegarLoop]: 812 mSDtfsCounter, 61 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 1582 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 19:05:43,576 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 1582 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 19:05:43,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1353 states. [2024-10-14 19:05:43,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1353 to 1353. [2024-10-14 19:05:43,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1353 states, 901 states have (on average 2.1476137624861265) internal successors, (1935), 1333 states have internal predecessors, (1935), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-14 19:05:43,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1353 states to 1353 states and 1969 transitions. [2024-10-14 19:05:43,599 INFO L78 Accepts]: Start accepts. Automaton has 1353 states and 1969 transitions. Word has length 12 [2024-10-14 19:05:43,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 19:05:43,599 INFO L471 AbstractCegarLoop]: Abstraction has 1353 states and 1969 transitions. [2024-10-14 19:05:43,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:05:43,599 INFO L276 IsEmpty]: Start isEmpty. Operand 1353 states and 1969 transitions. [2024-10-14 19:05:43,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-14 19:05:43,600 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 19:05:43,600 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:05:43,605 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2024-10-14 19:05:43,800 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 [2024-10-14 19:05:43,801 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-14 19:05:43,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:05:43,801 INFO L85 PathProgramCache]: Analyzing trace with hash 201952929, now seen corresponding path program 1 times [2024-10-14 19:05:43,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 19:05:43,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1070620410] [2024-10-14 19:05:43,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:05:43,802 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 [2024-10-14 19:05:43,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 19:05:43,803 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) [2024-10-14 19:05:43,804 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 [2024-10-14 19:05:43,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:05:43,939 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 19:05:43,941 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:05:43,949 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-14 19:05:43,950 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-14 19:05:43,951 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-14 19:05:43,956 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 [2024-10-14 19:05:44,007 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 19:05:44,008 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 [2024-10-14 19:05:44,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:05:44,025 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 19:05:44,025 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 19:05:44,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1070620410] [2024-10-14 19:05:44,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1070620410] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:05:44,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:05:44,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 19:05:44,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045826044] [2024-10-14 19:05:44,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:05:44,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 19:05:44,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 19:05:44,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 19:05:44,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 19:05:44,027 INFO L87 Difference]: Start difference. First operand 1353 states and 1969 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:05:45,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 19:05:45,136 INFO L93 Difference]: Finished difference Result 1853 states and 2258 transitions. [2024-10-14 19:05:45,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 19:05:45,137 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-10-14 19:05:45,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 19:05:45,141 INFO L225 Difference]: With dead ends: 1853 [2024-10-14 19:05:45,141 INFO L226 Difference]: Without dead ends: 1853 [2024-10-14 19:05:45,141 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 19:05:45,142 INFO L432 NwaCegarLoop]: 944 mSDtfsCounter, 809 mSDsluCounter, 1734 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 2678 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-14 19:05:45,142 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [821 Valid, 2678 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-14 19:05:45,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1853 states. [2024-10-14 19:05:45,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1853 to 1082. [2024-10-14 19:05:45,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1082 states, 632 states have (on average 2.1297468354430378) internal successors, (1346), 1064 states have internal predecessors, (1346), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-14 19:05:45,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1376 transitions. [2024-10-14 19:05:45,162 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1376 transitions. Word has length 15 [2024-10-14 19:05:45,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 19:05:45,163 INFO L471 AbstractCegarLoop]: Abstraction has 1082 states and 1376 transitions. [2024-10-14 19:05:45,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:05:45,163 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1376 transitions. [2024-10-14 19:05:45,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-14 19:05:45,163 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 19:05:45,164 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:05:45,170 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-10-14 19:05:45,364 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 [2024-10-14 19:05:45,365 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-14 19:05:45,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:05:45,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1507469734, now seen corresponding path program 1 times [2024-10-14 19:05:45,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 19:05:45,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1713771126] [2024-10-14 19:05:45,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:05:45,366 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 [2024-10-14 19:05:45,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 19:05:45,369 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) [2024-10-14 19:05:45,370 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 [2024-10-14 19:05:45,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:05:45,519 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-14 19:05:45,521 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:05:45,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:05:45,527 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 19:05:45,527 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 19:05:45,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1713771126] [2024-10-14 19:05:45,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1713771126] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:05:45,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:05:45,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 19:05:45,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630260792] [2024-10-14 19:05:45,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:05:45,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 19:05:45,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 19:05:45,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 19:05:45,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 19:05:45,528 INFO L87 Difference]: Start difference. First operand 1082 states and 1376 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:05:45,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 19:05:45,980 INFO L93 Difference]: Finished difference Result 1028 states and 1296 transitions. [2024-10-14 19:05:45,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 19:05:45,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-10-14 19:05:45,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 19:05:45,984 INFO L225 Difference]: With dead ends: 1028 [2024-10-14 19:05:45,984 INFO L226 Difference]: Without dead ends: 1028 [2024-10-14 19:05:45,984 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 19:05:45,985 INFO L432 NwaCegarLoop]: 775 mSDtfsCounter, 61 mSDsluCounter, 733 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 1508 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 19:05:45,985 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 1508 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 19:05:45,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2024-10-14 19:05:45,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 1028. [2024-10-14 19:05:45,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1028 states, 602 states have (on average 2.1029900332225915) internal successors, (1266), 1010 states have internal predecessors, (1266), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-14 19:05:46,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 1296 transitions. [2024-10-14 19:05:46,002 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 1296 transitions. Word has length 15 [2024-10-14 19:05:46,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 19:05:46,002 INFO L471 AbstractCegarLoop]: Abstraction has 1028 states and 1296 transitions. [2024-10-14 19:05:46,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:05:46,003 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 1296 transitions. [2024-10-14 19:05:46,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-14 19:05:46,003 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 19:05:46,003 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:05:46,010 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 [2024-10-14 19:05:46,204 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 [2024-10-14 19:05:46,204 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-14 19:05:46,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:05:46,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1274437676, now seen corresponding path program 1 times [2024-10-14 19:05:46,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 19:05:46,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [341083112] [2024-10-14 19:05:46,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:05:46,205 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 [2024-10-14 19:05:46,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 19:05:46,208 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) [2024-10-14 19:05:46,209 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 [2024-10-14 19:05:46,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:05:46,377 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 19:05:46,379 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:05:46,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:05:46,396 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 19:05:46,396 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 19:05:46,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [341083112] [2024-10-14 19:05:46,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [341083112] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:05:46,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:05:46,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 19:05:46,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005035232] [2024-10-14 19:05:46,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:05:46,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 19:05:46,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 19:05:46,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 19:05:46,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 19:05:46,398 INFO L87 Difference]: Start difference. First operand 1028 states and 1296 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:05:47,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 19:05:47,146 INFO L93 Difference]: Finished difference Result 1012 states and 1252 transitions. [2024-10-14 19:05:47,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 19:05:47,148 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-10-14 19:05:47,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 19:05:47,151 INFO L225 Difference]: With dead ends: 1012 [2024-10-14 19:05:47,151 INFO L226 Difference]: Without dead ends: 1012 [2024-10-14 19:05:47,151 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 19:05:47,152 INFO L432 NwaCegarLoop]: 744 mSDtfsCounter, 45 mSDsluCounter, 1470 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 2214 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 19:05:47,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 2214 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 19:05:47,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2024-10-14 19:05:47,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 1012. [2024-10-14 19:05:47,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 600 states have (on average 2.0366666666666666) internal successors, (1222), 994 states have internal predecessors, (1222), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-14 19:05:47,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1252 transitions. [2024-10-14 19:05:47,165 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1252 transitions. Word has length 17 [2024-10-14 19:05:47,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 19:05:47,166 INFO L471 AbstractCegarLoop]: Abstraction has 1012 states and 1252 transitions. [2024-10-14 19:05:47,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:05:47,166 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1252 transitions. [2024-10-14 19:05:47,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-14 19:05:47,167 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 19:05:47,167 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:05:47,173 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 [2024-10-14 19:05:47,370 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 [2024-10-14 19:05:47,371 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-14 19:05:47,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:05:47,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1196089309, now seen corresponding path program 1 times [2024-10-14 19:05:47,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 19:05:47,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1983626919] [2024-10-14 19:05:47,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:05:47,373 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 19:05:47,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 19:05:47,375 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) [2024-10-14 19:05:47,376 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 [2024-10-14 19:05:47,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:05:47,563 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 19:05:47,566 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:05:47,576 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-14 19:05:47,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:05:47,734 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 19:05:47,735 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 19:05:47,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1983626919] [2024-10-14 19:05:47,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1983626919] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:05:47,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:05:47,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 19:05:47,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987535618] [2024-10-14 19:05:47,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:05:47,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 19:05:47,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 19:05:47,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 19:05:47,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 19:05:47,737 INFO L87 Difference]: Start difference. First operand 1012 states and 1252 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:05:50,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 19:05:50,042 INFO L93 Difference]: Finished difference Result 1498 states and 1865 transitions. [2024-10-14 19:05:50,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 19:05:50,043 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2024-10-14 19:05:50,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 19:05:50,046 INFO L225 Difference]: With dead ends: 1498 [2024-10-14 19:05:50,046 INFO L226 Difference]: Without dead ends: 1498 [2024-10-14 19:05:50,047 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 19:05:50,047 INFO L432 NwaCegarLoop]: 951 mSDtfsCounter, 535 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 1415 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 1900 SdHoareTripleChecker+Invalid, 1418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-14 19:05:50,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 1900 Invalid, 1418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1415 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-14 19:05:50,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1498 states. [2024-10-14 19:05:50,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1498 to 1008. [2024-10-14 19:05:50,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1008 states, 600 states have (on average 2.0233333333333334) internal successors, (1214), 990 states have internal predecessors, (1214), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-14 19:05:50,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1008 states to 1008 states and 1244 transitions. [2024-10-14 19:05:50,063 INFO L78 Accepts]: Start accepts. Automaton has 1008 states and 1244 transitions. Word has length 31 [2024-10-14 19:05:50,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 19:05:50,063 INFO L471 AbstractCegarLoop]: Abstraction has 1008 states and 1244 transitions. [2024-10-14 19:05:50,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:05:50,063 INFO L276 IsEmpty]: Start isEmpty. Operand 1008 states and 1244 transitions. [2024-10-14 19:05:50,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-14 19:05:50,065 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 19:05:50,065 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:05:50,072 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 [2024-10-14 19:05:50,266 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 [2024-10-14 19:05:50,266 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-14 19:05:50,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:05:50,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1196089310, now seen corresponding path program 1 times [2024-10-14 19:05:50,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 19:05:50,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1522026567] [2024-10-14 19:05:50,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:05:50,267 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 [2024-10-14 19:05:50,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 19:05:50,270 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) [2024-10-14 19:05:50,272 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 [2024-10-14 19:05:50,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:05:50,454 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 19:05:50,456 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:05:50,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-14 19:05:50,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:05:50,525 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 19:05:50,525 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 19:05:50,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1522026567] [2024-10-14 19:05:50,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1522026567] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:05:50,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:05:50,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 19:05:50,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946536022] [2024-10-14 19:05:50,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:05:50,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 19:05:50,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 19:05:50,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 19:05:50,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 19:05:50,528 INFO L87 Difference]: Start difference. First operand 1008 states and 1244 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:05:51,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 19:05:51,911 INFO L93 Difference]: Finished difference Result 1387 states and 1744 transitions. [2024-10-14 19:05:51,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 19:05:51,912 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2024-10-14 19:05:51,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 19:05:51,916 INFO L225 Difference]: With dead ends: 1387 [2024-10-14 19:05:51,916 INFO L226 Difference]: Without dead ends: 1387 [2024-10-14 19:05:51,916 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 19:05:51,917 INFO L432 NwaCegarLoop]: 431 mSDtfsCounter, 728 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 731 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 1120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-14 19:05:51,917 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [731 Valid, 1022 Invalid, 1120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1113 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-14 19:05:51,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1387 states. [2024-10-14 19:05:51,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1387 to 1004. [2024-10-14 19:05:51,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1004 states, 600 states have (on average 2.01) internal successors, (1206), 986 states have internal predecessors, (1206), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-14 19:05:51,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1004 states to 1004 states and 1236 transitions. [2024-10-14 19:05:51,932 INFO L78 Accepts]: Start accepts. Automaton has 1004 states and 1236 transitions. Word has length 31 [2024-10-14 19:05:51,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 19:05:51,933 INFO L471 AbstractCegarLoop]: Abstraction has 1004 states and 1236 transitions. [2024-10-14 19:05:51,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:05:51,934 INFO L276 IsEmpty]: Start isEmpty. Operand 1004 states and 1236 transitions. [2024-10-14 19:05:51,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-10-14 19:05:51,938 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 19:05:51,938 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:05:51,944 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 [2024-10-14 19:05:52,139 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 [2024-10-14 19:05:52,139 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-14 19:05:52,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:05:52,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1418610896, now seen corresponding path program 1 times [2024-10-14 19:05:52,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 19:05:52,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1890659948] [2024-10-14 19:05:52,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:05:52,140 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 [2024-10-14 19:05:52,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 19:05:52,141 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) [2024-10-14 19:05:52,142 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 [2024-10-14 19:05:52,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:05:52,349 INFO L255 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 19:05:52,351 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:05:52,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:05:52,383 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 19:05:52,383 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 19:05:52,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1890659948] [2024-10-14 19:05:52,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1890659948] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:05:52,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:05:52,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 19:05:52,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688532042] [2024-10-14 19:05:52,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:05:52,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 19:05:52,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 19:05:52,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 19:05:52,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 19:05:52,385 INFO L87 Difference]: Start difference. First operand 1004 states and 1236 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2024-10-14 19:05:52,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 19:05:52,959 INFO L93 Difference]: Finished difference Result 992 states and 1216 transitions. [2024-10-14 19:05:52,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 19:05:52,960 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 51 [2024-10-14 19:05:52,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 19:05:52,963 INFO L225 Difference]: With dead ends: 992 [2024-10-14 19:05:52,963 INFO L226 Difference]: Without dead ends: 992 [2024-10-14 19:05:52,963 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 19:05:52,963 INFO L432 NwaCegarLoop]: 738 mSDtfsCounter, 15 mSDsluCounter, 1459 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2197 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 19:05:52,964 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2197 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 19:05:52,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2024-10-14 19:05:52,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 992. [2024-10-14 19:05:52,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 588 states have (on average 2.0170068027210886) internal successors, (1186), 974 states have internal predecessors, (1186), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-14 19:05:52,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1216 transitions. [2024-10-14 19:05:52,975 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1216 transitions. Word has length 51 [2024-10-14 19:05:52,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 19:05:52,975 INFO L471 AbstractCegarLoop]: Abstraction has 992 states and 1216 transitions. [2024-10-14 19:05:52,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2024-10-14 19:05:52,975 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1216 transitions. [2024-10-14 19:05:52,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-14 19:05:52,976 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 19:05:52,976 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:05:52,983 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 [2024-10-14 19:05:53,177 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 [2024-10-14 19:05:53,177 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-14 19:05:53,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:05:53,178 INFO L85 PathProgramCache]: Analyzing trace with hash -711112527, now seen corresponding path program 1 times [2024-10-14 19:05:53,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 19:05:53,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1806486078] [2024-10-14 19:05:53,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:05:53,179 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 [2024-10-14 19:05:53,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 19:05:53,183 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) [2024-10-14 19:05:53,185 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 [2024-10-14 19:05:53,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:05:53,540 INFO L255 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-14 19:05:53,542 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:05:53,560 INFO L349 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2024-10-14 19:05:53,561 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 17 [2024-10-14 19:05:53,619 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-10-14 19:05:53,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 28 [2024-10-14 19:05:54,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:05:54,158 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 19:05:54,158 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 19:05:54,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1806486078] [2024-10-14 19:05:54,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1806486078] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:05:54,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:05:54,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 19:05:54,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008193361] [2024-10-14 19:05:54,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:05:54,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 19:05:54,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 19:05:54,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 19:05:54,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-14 19:05:54,160 INFO L87 Difference]: Start difference. First operand 992 states and 1216 transitions. Second operand has 5 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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) [2024-10-14 19:05:56,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 19:05:56,325 INFO L93 Difference]: Finished difference Result 1810 states and 2219 transitions. [2024-10-14 19:05:56,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 19:05:56,325 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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 55 [2024-10-14 19:05:56,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 19:05:56,329 INFO L225 Difference]: With dead ends: 1810 [2024-10-14 19:05:56,330 INFO L226 Difference]: Without dead ends: 1810 [2024-10-14 19:05:56,330 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-14 19:05:56,330 INFO L432 NwaCegarLoop]: 479 mSDtfsCounter, 715 mSDsluCounter, 869 mSDsCounter, 0 mSdLazyCounter, 1194 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 715 SdHoareTripleChecker+Valid, 1348 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-14 19:05:56,330 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [715 Valid, 1348 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1194 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-14 19:05:56,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1810 states. [2024-10-14 19:05:56,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1810 to 1344. [2024-10-14 19:05:56,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1344 states, 925 states have (on average 2.0086486486486486) internal successors, (1858), 1314 states have internal predecessors, (1858), 29 states have call successors, (29), 9 states have call predecessors, (29), 7 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-14 19:05:56,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1344 states to 1344 states and 1912 transitions. [2024-10-14 19:05:56,353 INFO L78 Accepts]: Start accepts. Automaton has 1344 states and 1912 transitions. Word has length 55 [2024-10-14 19:05:56,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 19:05:56,354 INFO L471 AbstractCegarLoop]: Abstraction has 1344 states and 1912 transitions. [2024-10-14 19:05:56,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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) [2024-10-14 19:05:56,354 INFO L276 IsEmpty]: Start isEmpty. Operand 1344 states and 1912 transitions. [2024-10-14 19:05:56,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-14 19:05:56,355 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 19:05:56,356 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:05:56,366 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 [2024-10-14 19:05:56,556 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 [2024-10-14 19:05:56,557 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-14 19:05:56,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:05:56,557 INFO L85 PathProgramCache]: Analyzing trace with hash -711112526, now seen corresponding path program 1 times [2024-10-14 19:05:56,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 19:05:56,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [712103693] [2024-10-14 19:05:56,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:05:56,558 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 [2024-10-14 19:05:56,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 19:05:56,561 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) [2024-10-14 19:05:56,562 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 [2024-10-14 19:05:56,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:05:56,913 INFO L255 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-14 19:05:56,916 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:05:56,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 19:05:56,946 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-10-14 19:05:57,014 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2024-10-14 19:05:57,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2024-10-14 19:05:57,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:05:57,545 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 19:05:57,545 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 19:05:57,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [712103693] [2024-10-14 19:05:57,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [712103693] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:05:57,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:05:57,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 19:05:57,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941580802] [2024-10-14 19:05:57,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:05:57,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 19:05:57,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 19:05:57,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 19:05:57,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 19:05:57,546 INFO L87 Difference]: Start difference. First operand 1344 states and 1912 transitions. Second operand has 4 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2024-10-14 19:05:59,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 19:05:59,150 INFO L93 Difference]: Finished difference Result 1349 states and 1918 transitions. [2024-10-14 19:05:59,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 19:05:59,150 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 55 [2024-10-14 19:05:59,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 19:05:59,154 INFO L225 Difference]: With dead ends: 1349 [2024-10-14 19:05:59,154 INFO L226 Difference]: Without dead ends: 1349 [2024-10-14 19:05:59,155 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 19:05:59,155 INFO L432 NwaCegarLoop]: 743 mSDtfsCounter, 0 mSDsluCounter, 801 mSDsCounter, 0 mSdLazyCounter, 992 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1544 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-14 19:05:59,155 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1544 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 992 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-14 19:05:59,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1349 states. [2024-10-14 19:05:59,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1349 to 1349. [2024-10-14 19:05:59,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1349 states, 929 states have (on average 2.0043057050592035) internal successors, (1862), 1318 states have internal predecessors, (1862), 30 states have call successors, (30), 10 states have call predecessors, (30), 7 states have return successors, (26), 22 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-14 19:05:59,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1349 states to 1349 states and 1918 transitions. [2024-10-14 19:05:59,175 INFO L78 Accepts]: Start accepts. Automaton has 1349 states and 1918 transitions. Word has length 55 [2024-10-14 19:05:59,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 19:05:59,176 INFO L471 AbstractCegarLoop]: Abstraction has 1349 states and 1918 transitions. [2024-10-14 19:05:59,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2024-10-14 19:05:59,177 INFO L276 IsEmpty]: Start isEmpty. Operand 1349 states and 1918 transitions. [2024-10-14 19:05:59,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-14 19:05:59,178 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 19:05:59,178 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:05:59,187 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2024-10-14 19:05:59,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 19:05:59,378 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-14 19:05:59,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:05:59,379 INFO L85 PathProgramCache]: Analyzing trace with hash 511752310, now seen corresponding path program 1 times [2024-10-14 19:05:59,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 19:05:59,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1112059758] [2024-10-14 19:05:59,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:05:59,379 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 [2024-10-14 19:05:59,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 19:05:59,380 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-14 19:05:59,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-10-14 19:05:59,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:05:59,631 INFO L255 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 19:05:59,632 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:05:59,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:05:59,740 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 19:05:59,740 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 19:05:59,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1112059758] [2024-10-14 19:05:59,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1112059758] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:05:59,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:05:59,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 19:05:59,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905534266] [2024-10-14 19:05:59,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:05:59,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 19:05:59,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 19:05:59,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 19:05:59,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 19:05:59,742 INFO L87 Difference]: Start difference. First operand 1349 states and 1918 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 19:06:00,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 19:06:00,856 INFO L93 Difference]: Finished difference Result 1353 states and 1926 transitions. [2024-10-14 19:06:00,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 19:06:00,858 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2024-10-14 19:06:00,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 19:06:00,862 INFO L225 Difference]: With dead ends: 1353 [2024-10-14 19:06:00,862 INFO L226 Difference]: Without dead ends: 1353 [2024-10-14 19:06:00,863 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-14 19:06:00,863 INFO L432 NwaCegarLoop]: 735 mSDtfsCounter, 19 mSDsluCounter, 2855 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 3590 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-14 19:06:00,863 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 3590 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-14 19:06:00,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1353 states. [2024-10-14 19:06:00,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1353 to 1351. [2024-10-14 19:06:00,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1351 states, 930 states have (on average 2.003225806451613) internal successors, (1863), 1319 states have internal predecessors, (1863), 30 states have call successors, (30), 10 states have call predecessors, (30), 8 states have return successors, (29), 22 states have call predecessors, (29), 26 states have call successors, (29) [2024-10-14 19:06:00,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1351 states to 1351 states and 1922 transitions. [2024-10-14 19:06:00,882 INFO L78 Accepts]: Start accepts. Automaton has 1351 states and 1922 transitions. Word has length 59 [2024-10-14 19:06:00,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 19:06:00,883 INFO L471 AbstractCegarLoop]: Abstraction has 1351 states and 1922 transitions. [2024-10-14 19:06:00,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 19:06:00,883 INFO L276 IsEmpty]: Start isEmpty. Operand 1351 states and 1922 transitions. [2024-10-14 19:06:00,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-14 19:06:00,884 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 19:06:00,884 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:06:00,895 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2024-10-14 19:06:01,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 19:06:01,084 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-14 19:06:01,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:06:01,085 INFO L85 PathProgramCache]: Analyzing trace with hash -918850781, now seen corresponding path program 1 times [2024-10-14 19:06:01,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 19:06:01,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1595036738] [2024-10-14 19:06:01,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:06:01,086 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 [2024-10-14 19:06:01,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 19:06:01,087 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-14 19:06:01,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-10-14 19:06:01,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:06:01,346 INFO L255 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 19:06:01,347 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:06:01,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:06:01,380 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 19:06:01,381 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 19:06:01,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1595036738] [2024-10-14 19:06:01,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1595036738] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:06:01,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:06:01,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 19:06:01,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408375973] [2024-10-14 19:06:01,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:06:01,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 19:06:01,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 19:06:01,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 19:06:01,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 19:06:01,382 INFO L87 Difference]: Start difference. First operand 1351 states and 1922 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:06:02,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 19:06:02,371 INFO L93 Difference]: Finished difference Result 1375 states and 1946 transitions. [2024-10-14 19:06:02,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 19:06:02,372 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2024-10-14 19:06:02,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 19:06:02,376 INFO L225 Difference]: With dead ends: 1375 [2024-10-14 19:06:02,376 INFO L226 Difference]: Without dead ends: 1375 [2024-10-14 19:06:02,377 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-14 19:06:02,377 INFO L432 NwaCegarLoop]: 750 mSDtfsCounter, 13 mSDsluCounter, 2993 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 3743 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-14 19:06:02,377 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 3743 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-14 19:06:02,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1375 states. [2024-10-14 19:06:02,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1375 to 1371. [2024-10-14 19:06:02,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1371 states, 944 states have (on average 1.99364406779661) internal successors, (1882), 1335 states have internal predecessors, (1882), 32 states have call successors, (32), 14 states have call predecessors, (32), 12 states have return successors, (29), 24 states have call predecessors, (29), 28 states have call successors, (29) [2024-10-14 19:06:02,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1371 states to 1371 states and 1943 transitions. [2024-10-14 19:06:02,397 INFO L78 Accepts]: Start accepts. Automaton has 1371 states and 1943 transitions. Word has length 62 [2024-10-14 19:06:02,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 19:06:02,397 INFO L471 AbstractCegarLoop]: Abstraction has 1371 states and 1943 transitions. [2024-10-14 19:06:02,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:06:02,397 INFO L276 IsEmpty]: Start isEmpty. Operand 1371 states and 1943 transitions. [2024-10-14 19:06:02,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-14 19:06:02,398 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 19:06:02,398 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:06:02,408 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 (18)] Forceful destruction successful, exit code 0 [2024-10-14 19:06:02,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 19:06:02,599 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-14 19:06:02,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:06:02,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1853468852, now seen corresponding path program 1 times [2024-10-14 19:06:02,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 19:06:02,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [253651056] [2024-10-14 19:06:02,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:06:02,607 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 [2024-10-14 19:06:02,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 19:06:02,611 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-14 19:06:02,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-10-14 19:06:02,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:06:02,973 INFO L255 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-14 19:06:02,976 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:06:02,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-14 19:06:03,097 WARN L873 $PredicateComparison]: unable to prove that (exists ((|alt_malloc_#res.base| (_ BitVec 32))) (= (store |c_old(#valid)| |alt_malloc_#res.base| (_ bv1 1)) |c_#valid|)) is different from true [2024-10-14 19:06:03,112 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-10-14 19:06:03,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2024-10-14 19:06:03,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:06:03,120 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 19:06:03,120 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 19:06:03,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [253651056] [2024-10-14 19:06:03,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [253651056] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:06:03,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:06:03,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 19:06:03,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151810999] [2024-10-14 19:06:03,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:06:03,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 19:06:03,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 19:06:03,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 19:06:03,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2024-10-14 19:06:03,122 INFO L87 Difference]: Start difference. First operand 1371 states and 1943 transitions. Second operand has 5 states, 3 states have (on average 20.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 19:06:04,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 19:06:04,659 INFO L93 Difference]: Finished difference Result 1745 states and 2441 transitions. [2024-10-14 19:06:04,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 19:06:04,660 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 20.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 64 [2024-10-14 19:06:04,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 19:06:04,668 INFO L225 Difference]: With dead ends: 1745 [2024-10-14 19:06:04,669 INFO L226 Difference]: Without dead ends: 1745 [2024-10-14 19:06:04,669 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2024-10-14 19:06:04,669 INFO L432 NwaCegarLoop]: 402 mSDtfsCounter, 693 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 1134 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 2348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1194 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-14 19:06:04,670 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [696 Valid, 964 Invalid, 2348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1134 Invalid, 0 Unknown, 1194 Unchecked, 1.5s Time] [2024-10-14 19:06:04,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1745 states. [2024-10-14 19:06:04,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1745 to 1370. [2024-10-14 19:06:04,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1370 states, 944 states have (on average 1.9915254237288136) internal successors, (1880), 1334 states have internal predecessors, (1880), 32 states have call successors, (32), 14 states have call predecessors, (32), 12 states have return successors, (29), 24 states have call predecessors, (29), 28 states have call successors, (29) [2024-10-14 19:06:04,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1370 states to 1370 states and 1941 transitions. [2024-10-14 19:06:04,693 INFO L78 Accepts]: Start accepts. Automaton has 1370 states and 1941 transitions. Word has length 64 [2024-10-14 19:06:04,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 19:06:04,693 INFO L471 AbstractCegarLoop]: Abstraction has 1370 states and 1941 transitions. [2024-10-14 19:06:04,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 20.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 19:06:04,694 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 1941 transitions. [2024-10-14 19:06:04,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-14 19:06:04,694 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 19:06:04,694 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:06:04,706 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 (19)] Ended with exit code 0 [2024-10-14 19:06:04,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 19:06:04,895 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-14 19:06:04,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:06:04,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1853468853, now seen corresponding path program 1 times [2024-10-14 19:06:04,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 19:06:04,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1055152091] [2024-10-14 19:06:04,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:06:04,896 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 [2024-10-14 19:06:04,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 19:06:04,897 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-14 19:06:04,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-10-14 19:06:05,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:06:05,259 INFO L255 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-14 19:06:05,261 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:06:05,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-14 19:06:05,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-14 19:06:05,665 WARN L873 $PredicateComparison]: unable to prove that (exists ((|alt_malloc_#res.base| (_ BitVec 32))) (and (= (store |c_old(#length)| |alt_malloc_#res.base| (select |c_#length| |alt_malloc_#res.base|)) |c_#length|) (= (_ bv0 1) (select |c_old(#valid)| |alt_malloc_#res.base|)))) is different from true [2024-10-14 19:06:05,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 19:06:05,678 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-10-14 19:06:05,691 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-14 19:06:05,691 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-10-14 19:06:05,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:06:05,705 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 19:06:05,706 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 19:06:05,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1055152091] [2024-10-14 19:06:05,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1055152091] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:06:05,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:06:05,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 19:06:05,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120555899] [2024-10-14 19:06:05,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:06:05,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 19:06:05,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 19:06:05,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 19:06:05,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=13, Unknown=1, NotChecked=6, Total=30 [2024-10-14 19:06:05,707 INFO L87 Difference]: Start difference. First operand 1370 states and 1941 transitions. Second operand has 6 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 19:06:09,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 19:06:09,194 INFO L93 Difference]: Finished difference Result 2329 states and 3258 transitions. [2024-10-14 19:06:09,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 19:06:09,194 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 64 [2024-10-14 19:06:09,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 19:06:09,200 INFO L225 Difference]: With dead ends: 2329 [2024-10-14 19:06:09,200 INFO L226 Difference]: Without dead ends: 2329 [2024-10-14 19:06:09,200 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=13, Unknown=1, NotChecked=6, Total=30 [2024-10-14 19:06:09,200 INFO L432 NwaCegarLoop]: 786 mSDtfsCounter, 852 mSDsluCounter, 879 mSDsCounter, 0 mSdLazyCounter, 2635 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 1665 SdHoareTripleChecker+Invalid, 4286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 2635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1628 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-10-14 19:06:09,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [855 Valid, 1665 Invalid, 4286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 2635 Invalid, 0 Unknown, 1628 Unchecked, 3.4s Time] [2024-10-14 19:06:09,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2329 states. [2024-10-14 19:06:09,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2329 to 1362. [2024-10-14 19:06:09,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1362 states, 944 states have (on average 1.9745762711864407) internal successors, (1864), 1326 states have internal predecessors, (1864), 32 states have call successors, (32), 14 states have call predecessors, (32), 12 states have return successors, (29), 24 states have call predecessors, (29), 28 states have call successors, (29) [2024-10-14 19:06:09,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1362 states to 1362 states and 1925 transitions. [2024-10-14 19:06:09,222 INFO L78 Accepts]: Start accepts. Automaton has 1362 states and 1925 transitions. Word has length 64 [2024-10-14 19:06:09,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 19:06:09,222 INFO L471 AbstractCegarLoop]: Abstraction has 1362 states and 1925 transitions. [2024-10-14 19:06:09,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 19:06:09,223 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 1925 transitions. [2024-10-14 19:06:09,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-10-14 19:06:09,223 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 19:06:09,223 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:06:09,235 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 (20)] Ended with exit code 0 [2024-10-14 19:06:09,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 19:06:09,424 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting alt_bzeroErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-14 19:06:09,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:06:09,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1865756806, now seen corresponding path program 1 times [2024-10-14 19:06:09,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 19:06:09,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2070318224] [2024-10-14 19:06:09,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:06:09,425 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 [2024-10-14 19:06:09,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 19:06:09,426 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-14 19:06:09,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-10-14 19:06:09,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:06:09,710 INFO L255 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-14 19:06:09,712 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:06:09,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-14 19:06:09,734 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-10-14 19:06:09,755 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-10-14 19:06:09,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:06:09,787 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 19:06:09,787 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 19:06:09,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2070318224] [2024-10-14 19:06:09,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2070318224] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:06:09,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:06:09,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 19:06:09,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53626133] [2024-10-14 19:06:09,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:06:09,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 19:06:09,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 19:06:09,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 19:06:09,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-14 19:06:09,789 INFO L87 Difference]: Start difference. First operand 1362 states and 1925 transitions. Second operand has 8 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 19:06:12,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 19:06:12,366 INFO L93 Difference]: Finished difference Result 1373 states and 1937 transitions. [2024-10-14 19:06:12,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 19:06:12,366 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 70 [2024-10-14 19:06:12,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 19:06:12,370 INFO L225 Difference]: With dead ends: 1373 [2024-10-14 19:06:12,371 INFO L226 Difference]: Without dead ends: 1373 [2024-10-14 19:06:12,371 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-10-14 19:06:12,371 INFO L432 NwaCegarLoop]: 737 mSDtfsCounter, 12 mSDsluCounter, 2527 mSDsCounter, 0 mSdLazyCounter, 2583 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 3264 SdHoareTripleChecker+Invalid, 2585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-14 19:06:12,371 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 3264 Invalid, 2585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2583 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-14 19:06:12,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1373 states. [2024-10-14 19:06:12,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1373 to 1372. [2024-10-14 19:06:12,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1372 states, 952 states have (on average 1.9705882352941178) internal successors, (1876), 1334 states have internal predecessors, (1876), 32 states have call successors, (32), 16 states have call predecessors, (32), 14 states have return successors, (29), 24 states have call predecessors, (29), 28 states have call successors, (29) [2024-10-14 19:06:12,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1372 states to 1372 states and 1937 transitions. [2024-10-14 19:06:12,397 INFO L78 Accepts]: Start accepts. Automaton has 1372 states and 1937 transitions. Word has length 70 [2024-10-14 19:06:12,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 19:06:12,397 INFO L471 AbstractCegarLoop]: Abstraction has 1372 states and 1937 transitions. [2024-10-14 19:06:12,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 19:06:12,397 INFO L276 IsEmpty]: Start isEmpty. Operand 1372 states and 1937 transitions. [2024-10-14 19:06:12,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-10-14 19:06:12,398 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 19:06:12,398 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:06:12,407 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2024-10-14 19:06:12,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 19:06:12,599 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting alt_bzeroErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-14 19:06:12,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:06:12,600 INFO L85 PathProgramCache]: Analyzing trace with hash 2003886214, now seen corresponding path program 1 times [2024-10-14 19:06:12,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 19:06:12,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2074435141] [2024-10-14 19:06:12,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:06:12,600 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 [2024-10-14 19:06:12,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 19:06:12,601 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-14 19:06:12,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2024-10-14 19:06:12,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:06:12,869 INFO L255 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-10-14 19:06:12,872 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:06:12,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-14 19:06:12,922 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-10-14 19:06:12,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-10-14 19:06:12,956 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-10-14 19:06:13,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:06:13,035 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 19:06:13,035 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 19:06:13,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2074435141] [2024-10-14 19:06:13,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2074435141] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:06:13,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:06:13,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 19:06:13,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374201932] [2024-10-14 19:06:13,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:06:13,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 19:06:13,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 19:06:13,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 19:06:13,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 19:06:13,036 INFO L87 Difference]: Start difference. First operand 1372 states and 1937 transitions. Second operand has 9 states, 6 states have (on average 11.0) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 19:06:16,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 19:06:16,368 INFO L93 Difference]: Finished difference Result 1372 states and 1935 transitions. [2024-10-14 19:06:16,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 19:06:16,369 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 6 states have (on average 11.0) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 71 [2024-10-14 19:06:16,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 19:06:16,371 INFO L225 Difference]: With dead ends: 1372 [2024-10-14 19:06:16,371 INFO L226 Difference]: Without dead ends: 1372 [2024-10-14 19:06:16,371 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-10-14 19:06:16,372 INFO L432 NwaCegarLoop]: 735 mSDtfsCounter, 11 mSDsluCounter, 3097 mSDsCounter, 0 mSdLazyCounter, 2848 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 3832 SdHoareTripleChecker+Invalid, 2849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-10-14 19:06:16,372 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 3832 Invalid, 2849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2848 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-10-14 19:06:16,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1372 states. [2024-10-14 19:06:16,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1372 to 1372. [2024-10-14 19:06:16,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1372 states, 952 states have (on average 1.968487394957983) internal successors, (1874), 1334 states have internal predecessors, (1874), 32 states have call successors, (32), 16 states have call predecessors, (32), 14 states have return successors, (29), 24 states have call predecessors, (29), 28 states have call successors, (29) [2024-10-14 19:06:16,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1372 states to 1372 states and 1935 transitions. [2024-10-14 19:06:16,388 INFO L78 Accepts]: Start accepts. Automaton has 1372 states and 1935 transitions. Word has length 71 [2024-10-14 19:06:16,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 19:06:16,389 INFO L471 AbstractCegarLoop]: Abstraction has 1372 states and 1935 transitions. [2024-10-14 19:06:16,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 6 states have (on average 11.0) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 19:06:16,389 INFO L276 IsEmpty]: Start isEmpty. Operand 1372 states and 1935 transitions. [2024-10-14 19:06:16,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-14 19:06:16,389 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 19:06:16,389 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:06:16,400 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 (22)] Forceful destruction successful, exit code 0 [2024-10-14 19:06:16,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 19:06:16,590 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-14 19:06:16,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:06:16,590 INFO L85 PathProgramCache]: Analyzing trace with hash 894311914, now seen corresponding path program 1 times [2024-10-14 19:06:16,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 19:06:16,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [917715761] [2024-10-14 19:06:16,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:06:16,591 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 [2024-10-14 19:06:16,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 19:06:16,592 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-14 19:06:16,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2024-10-14 19:06:16,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:06:16,875 INFO L255 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 19:06:16,878 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:06:16,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:06:16,899 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 19:06:16,899 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 19:06:16,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [917715761] [2024-10-14 19:06:16,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [917715761] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:06:16,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:06:16,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 19:06:16,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968562207] [2024-10-14 19:06:16,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:06:16,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 19:06:16,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 19:06:16,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 19:06:16,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 19:06:16,901 INFO L87 Difference]: Start difference. First operand 1372 states and 1935 transitions. Second operand has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 19:06:17,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 19:06:17,442 INFO L93 Difference]: Finished difference Result 1380 states and 1945 transitions. [2024-10-14 19:06:17,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 19:06:17,444 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 76 [2024-10-14 19:06:17,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 19:06:17,446 INFO L225 Difference]: With dead ends: 1380 [2024-10-14 19:06:17,446 INFO L226 Difference]: Without dead ends: 1378 [2024-10-14 19:06:17,447 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 19:06:17,451 INFO L432 NwaCegarLoop]: 741 mSDtfsCounter, 3 mSDsluCounter, 1474 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2215 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 19:06:17,452 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2215 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 19:06:17,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1378 states. [2024-10-14 19:06:17,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1378 to 1378. [2024-10-14 19:06:17,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1378 states, 956 states have (on average 1.9665271966527196) internal successors, (1880), 1340 states have internal predecessors, (1880), 32 states have call successors, (32), 16 states have call predecessors, (32), 16 states have return successors, (31), 24 states have call predecessors, (31), 28 states have call successors, (31) [2024-10-14 19:06:17,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1378 states to 1378 states and 1943 transitions. [2024-10-14 19:06:17,477 INFO L78 Accepts]: Start accepts. Automaton has 1378 states and 1943 transitions. Word has length 76 [2024-10-14 19:06:17,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 19:06:17,478 INFO L471 AbstractCegarLoop]: Abstraction has 1378 states and 1943 transitions. [2024-10-14 19:06:17,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 19:06:17,478 INFO L276 IsEmpty]: Start isEmpty. Operand 1378 states and 1943 transitions. [2024-10-14 19:06:17,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-14 19:06:17,478 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 19:06:17,479 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:06:17,488 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 (23)] Forceful destruction successful, exit code 0 [2024-10-14 19:06:17,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 19:06:17,679 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-14 19:06:17,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:06:17,680 INFO L85 PathProgramCache]: Analyzing trace with hash 886648934, now seen corresponding path program 1 times [2024-10-14 19:06:17,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 19:06:17,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1675193135] [2024-10-14 19:06:17,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:06:17,680 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 [2024-10-14 19:06:17,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 19:06:17,681 INFO L229 MonitoredProcess]: Starting monitored process 24 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) [2024-10-14 19:06:17,682 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 (24)] Waiting until timeout for monitored process [2024-10-14 19:06:17,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:06:17,991 INFO L255 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 19:06:17,993 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:06:18,025 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:06:18,025 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 19:06:18,119 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:06:18,119 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 19:06:18,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1675193135] [2024-10-14 19:06:18,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1675193135] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 19:06:18,119 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 19:06:18,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-10-14 19:06:18,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719474848] [2024-10-14 19:06:18,119 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 19:06:18,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 19:06:18,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 19:06:18,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 19:06:18,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-10-14 19:06:18,121 INFO L87 Difference]: Start difference. First operand 1378 states and 1943 transitions. Second operand has 10 states, 8 states have (on average 9.5) internal successors, (76), 10 states have internal predecessors, (76), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-14 19:06:19,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 19:06:19,357 INFO L93 Difference]: Finished difference Result 1392 states and 1961 transitions. [2024-10-14 19:06:19,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 19:06:19,358 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 9.5) internal successors, (76), 10 states have internal predecessors, (76), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 77 [2024-10-14 19:06:19,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 19:06:19,361 INFO L225 Difference]: With dead ends: 1392 [2024-10-14 19:06:19,362 INFO L226 Difference]: Without dead ends: 1388 [2024-10-14 19:06:19,362 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2024-10-14 19:06:19,363 INFO L432 NwaCegarLoop]: 741 mSDtfsCounter, 13 mSDsluCounter, 4414 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 5155 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-14 19:06:19,365 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 5155 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 709 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-14 19:06:19,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1388 states. [2024-10-14 19:06:19,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1388 to 1386. [2024-10-14 19:06:19,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1386 states, 964 states have (on average 1.9605809128630705) internal successors, (1890), 1348 states have internal predecessors, (1890), 32 states have call successors, (32), 16 states have call predecessors, (32), 16 states have return successors, (31), 24 states have call predecessors, (31), 28 states have call successors, (31) [2024-10-14 19:06:19,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1386 states to 1386 states and 1953 transitions. [2024-10-14 19:06:19,379 INFO L78 Accepts]: Start accepts. Automaton has 1386 states and 1953 transitions. Word has length 77 [2024-10-14 19:06:19,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 19:06:19,380 INFO L471 AbstractCegarLoop]: Abstraction has 1386 states and 1953 transitions. [2024-10-14 19:06:19,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 9.5) internal successors, (76), 10 states have internal predecessors, (76), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-14 19:06:19,380 INFO L276 IsEmpty]: Start isEmpty. Operand 1386 states and 1953 transitions. [2024-10-14 19:06:19,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-14 19:06:19,380 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 19:06:19,381 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:06:19,389 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 (24)] Forceful destruction successful, exit code 0 [2024-10-14 19:06:19,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 19:06:19,584 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-14 19:06:19,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:06:19,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1220336874, now seen corresponding path program 2 times [2024-10-14 19:06:19,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 19:06:19,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1006025982] [2024-10-14 19:06:19,585 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 19:06:19,585 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 19:06:19,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 19:06:19,586 INFO L229 MonitoredProcess]: Starting monitored process 25 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) [2024-10-14 19:06:19,587 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 (25)] Waiting until timeout for monitored process [2024-10-14 19:06:20,099 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 19:06:20,099 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 19:06:20,112 INFO L255 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-14 19:06:20,114 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:06:20,209 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:06:20,209 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 19:06:20,446 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:06:20,447 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 19:06:20,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1006025982] [2024-10-14 19:06:20,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1006025982] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 19:06:20,447 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 19:06:20,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2024-10-14 19:06:20,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559427024] [2024-10-14 19:06:20,448 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 19:06:20,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-14 19:06:20,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 19:06:20,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-14 19:06:20,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2024-10-14 19:06:20,450 INFO L87 Difference]: Start difference. First operand 1386 states and 1953 transitions. Second operand has 16 states, 14 states have (on average 5.857142857142857) internal successors, (82), 16 states have internal predecessors, (82), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-14 19:06:22,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 19:06:22,396 INFO L93 Difference]: Finished difference Result 1410 states and 1991 transitions. [2024-10-14 19:06:22,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-14 19:06:22,398 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 5.857142857142857) internal successors, (82), 16 states have internal predecessors, (82), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 80 [2024-10-14 19:06:22,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 19:06:22,400 INFO L225 Difference]: With dead ends: 1410 [2024-10-14 19:06:22,400 INFO L226 Difference]: Without dead ends: 1406 [2024-10-14 19:06:22,400 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=248, Invalid=454, Unknown=0, NotChecked=0, Total=702 [2024-10-14 19:06:22,401 INFO L432 NwaCegarLoop]: 741 mSDtfsCounter, 32 mSDsluCounter, 5890 mSDsCounter, 0 mSdLazyCounter, 979 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 6631 SdHoareTripleChecker+Invalid, 1002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-14 19:06:22,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 6631 Invalid, 1002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 979 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-14 19:06:22,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1406 states. [2024-10-14 19:06:22,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1406 to 1404. [2024-10-14 19:06:22,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 982 states have (on average 1.9490835030549898) internal successors, (1914), 1366 states have internal predecessors, (1914), 32 states have call successors, (32), 16 states have call predecessors, (32), 16 states have return successors, (31), 24 states have call predecessors, (31), 28 states have call successors, (31) [2024-10-14 19:06:22,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 1977 transitions. [2024-10-14 19:06:22,416 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 1977 transitions. Word has length 80 [2024-10-14 19:06:22,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 19:06:22,417 INFO L471 AbstractCegarLoop]: Abstraction has 1404 states and 1977 transitions. [2024-10-14 19:06:22,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 5.857142857142857) internal successors, (82), 16 states have internal predecessors, (82), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-14 19:06:22,417 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 1977 transitions. [2024-10-14 19:06:22,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-14 19:06:22,417 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 19:06:22,417 INFO L215 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:06:22,434 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 (25)] Ended with exit code 0 [2024-10-14 19:06:22,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 19:06:22,625 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-14 19:06:22,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:06:22,625 INFO L85 PathProgramCache]: Analyzing trace with hash 680455018, now seen corresponding path program 3 times [2024-10-14 19:06:22,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 19:06:22,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [351797508] [2024-10-14 19:06:22,626 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-14 19:06:22,626 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 [2024-10-14 19:06:22,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 19:06:22,627 INFO L229 MonitoredProcess]: Starting monitored process 26 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) [2024-10-14 19:06:22,628 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 (26)] Waiting until timeout for monitored process [2024-10-14 19:06:23,363 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-10-14 19:06:23,363 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 19:06:23,375 INFO L255 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-14 19:06:23,377 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:06:23,556 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:06:23,556 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 19:06:24,086 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:06:24,086 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 19:06:24,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [351797508] [2024-10-14 19:06:24,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [351797508] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 19:06:24,086 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 19:06:24,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2024-10-14 19:06:24,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023762717] [2024-10-14 19:06:24,087 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 19:06:24,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-10-14 19:06:24,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 19:06:24,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-10-14 19:06:24,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=534, Unknown=0, NotChecked=0, Total=756 [2024-10-14 19:06:24,089 INFO L87 Difference]: Start difference. First operand 1404 states and 1977 transitions. Second operand has 28 states, 26 states have (on average 3.6153846153846154) internal successors, (94), 28 states have internal predecessors, (94), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-14 19:06:29,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 19:06:29,114 INFO L93 Difference]: Finished difference Result 1446 states and 2049 transitions. [2024-10-14 19:06:29,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-10-14 19:06:29,115 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 26 states have (on average 3.6153846153846154) internal successors, (94), 28 states have internal predecessors, (94), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 86 [2024-10-14 19:06:29,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 19:06:29,117 INFO L225 Difference]: With dead ends: 1446 [2024-10-14 19:06:29,117 INFO L226 Difference]: Without dead ends: 1440 [2024-10-14 19:06:29,118 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=854, Invalid=1696, Unknown=0, NotChecked=0, Total=2550 [2024-10-14 19:06:29,118 INFO L432 NwaCegarLoop]: 741 mSDtfsCounter, 65 mSDsluCounter, 11047 mSDsCounter, 0 mSdLazyCounter, 2046 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 11788 SdHoareTripleChecker+Invalid, 2087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-10-14 19:06:29,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 11788 Invalid, 2087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2046 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-10-14 19:06:29,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1440 states. [2024-10-14 19:06:29,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1440 to 1440. [2024-10-14 19:06:29,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1440 states, 1018 states have (on average 1.925343811394892) internal successors, (1960), 1402 states have internal predecessors, (1960), 32 states have call successors, (32), 16 states have call predecessors, (32), 16 states have return successors, (31), 24 states have call predecessors, (31), 28 states have call successors, (31) [2024-10-14 19:06:29,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 2023 transitions. [2024-10-14 19:06:29,132 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 2023 transitions. Word has length 86 [2024-10-14 19:06:29,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 19:06:29,133 INFO L471 AbstractCegarLoop]: Abstraction has 1440 states and 2023 transitions. [2024-10-14 19:06:29,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 26 states have (on average 3.6153846153846154) internal successors, (94), 28 states have internal predecessors, (94), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-14 19:06:29,133 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 2023 transitions. [2024-10-14 19:06:29,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-10-14 19:06:29,134 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 19:06:29,134 INFO L215 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:06:29,149 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 (26)] Ended with exit code 0 [2024-10-14 19:06:29,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 19:06:29,335 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-14 19:06:29,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:06:29,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1913886614, now seen corresponding path program 4 times [2024-10-14 19:06:29,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 19:06:29,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [204147467] [2024-10-14 19:06:29,337 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-14 19:06:29,337 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 19:06:29,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 19:06:29,341 INFO L229 MonitoredProcess]: Starting monitored process 27 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) [2024-10-14 19:06:29,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2024-10-14 19:06:29,970 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-14 19:06:29,970 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 19:06:29,984 INFO L255 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-10-14 19:06:29,987 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:06:30,574 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:06:30,574 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 19:06:31,977 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:06:31,977 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 19:06:31,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [204147467] [2024-10-14 19:06:31,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [204147467] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 19:06:31,978 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 19:06:31,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 52 [2024-10-14 19:06:31,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907922771] [2024-10-14 19:06:31,978 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 19:06:31,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-10-14 19:06:31,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 19:06:31,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-10-14 19:06:31,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=725, Invalid=1927, Unknown=0, NotChecked=0, Total=2652 [2024-10-14 19:06:31,980 INFO L87 Difference]: Start difference. First operand 1440 states and 2023 transitions. Second operand has 52 states, 50 states have (on average 2.36) internal successors, (118), 52 states have internal predecessors, (118), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4)