./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.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/ldv-memsafety/memleaks_test20-2.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 c03aa9fd4feebd47970076773e3fcb11c7b82646fa9d57d8ea4dde0614545dfa --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 18:02:39,844 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 18:02:39,925 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-14 18:02:39,930 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 18:02:39,931 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 18:02:39,959 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 18:02:39,960 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 18:02:39,961 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 18:02:39,961 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 18:02:39,962 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 18:02:39,962 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 18:02:39,962 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 18:02:39,963 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 18:02:39,963 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 18:02:39,964 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 18:02:39,964 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 18:02:39,968 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 18:02:39,968 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 18:02:39,968 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 18:02:39,968 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 18:02:39,969 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-14 18:02:39,973 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-14 18:02:39,974 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-14 18:02:39,974 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 18:02:39,974 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-14 18:02:39,974 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 18:02:39,974 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 18:02:39,975 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 18:02:39,975 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 18:02:39,975 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 18:02:39,975 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 18:02:39,976 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 18:02:39,976 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 18:02:39,976 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 18:02:39,976 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 18:02:39,976 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 18:02:39,976 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 18:02:39,977 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 18:02:39,977 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 18:02:39,977 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 18:02:39,977 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 18:02:39,978 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 18:02:39,978 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c03aa9fd4feebd47970076773e3fcb11c7b82646fa9d57d8ea4dde0614545dfa [2024-10-14 18:02:40,234 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 18:02:40,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 18:02:40,266 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 18:02:40,267 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 18:02:40,268 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 18:02:40,269 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i [2024-10-14 18:02:41,719 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 18:02:41,993 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 18:02:41,993 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i [2024-10-14 18:02:42,010 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/304fd56a9/53e1c8fddfec48888a9438e7ecad080b/FLAGf8ab3f734 [2024-10-14 18:02:42,302 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/304fd56a9/53e1c8fddfec48888a9438e7ecad080b [2024-10-14 18:02:42,305 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 18:02:42,306 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 18:02:42,306 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 18:02:42,307 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 18:02:42,311 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 18:02:42,312 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 06:02:42" (1/1) ... [2024-10-14 18:02:42,313 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a99c220 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:02:42, skipping insertion in model container [2024-10-14 18:02:42,313 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 06:02:42" (1/1) ... [2024-10-14 18:02:42,364 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 18:02:42,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 18:02:42,774 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 18:02:42,775 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@32b72081 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:02:42, skipping insertion in model container [2024-10-14 18:02:42,775 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 18:02:42,775 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-10-14 18:02:42,777 INFO L158 Benchmark]: Toolchain (without parser) took 470.45ms. Allocated memory is still 184.5MB. Free memory was 154.3MB in the beginning and 139.1MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-14 18:02:42,777 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 121.6MB. Free memory was 82.2MB in the beginning and 82.1MB in the end (delta: 119.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 18:02:42,778 INFO L158 Benchmark]: CACSL2BoogieTranslator took 468.66ms. Allocated memory is still 184.5MB. Free memory was 153.8MB in the beginning and 139.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-14 18:02:42,780 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 121.6MB. Free memory was 82.2MB in the beginning and 82.1MB in the end (delta: 119.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 468.66ms. Allocated memory is still 184.5MB. Free memory was 153.8MB in the beginning and 139.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: 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/ldv-memsafety/memleaks_test20-2.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 c03aa9fd4feebd47970076773e3fcb11c7b82646fa9d57d8ea4dde0614545dfa --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 18:02:44,764 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 18:02:44,851 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-10-14 18:02:44,859 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 18:02:44,860 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 18:02:44,893 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 18:02:44,893 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 18:02:44,894 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 18:02:44,894 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 18:02:44,894 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 18:02:44,895 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 18:02:44,896 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 18:02:44,896 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 18:02:44,900 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 18:02:44,900 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 18:02:44,901 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 18:02:44,901 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 18:02:44,903 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 18:02:44,903 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 18:02:44,903 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 18:02:44,903 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-14 18:02:44,904 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-14 18:02:44,905 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-14 18:02:44,905 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 18:02:44,905 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-14 18:02:44,906 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-14 18:02:44,906 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 18:02:44,906 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-14 18:02:44,907 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 18:02:44,907 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 18:02:44,907 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 18:02:44,908 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 18:02:44,908 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 18:02:44,909 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 18:02:44,909 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 18:02:44,909 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 18:02:44,910 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 18:02:44,910 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 18:02:44,911 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-14 18:02:44,911 INFO L153 SettingsManager]: * Command for external solver=cvc5 --incremental --print-success --lang smt [2024-10-14 18:02:44,911 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 18:02:44,912 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 18:02:44,912 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 18:02:44,912 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 18:02:44,912 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-14 18:02:44,913 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c03aa9fd4feebd47970076773e3fcb11c7b82646fa9d57d8ea4dde0614545dfa [2024-10-14 18:02:45,253 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 18:02:45,276 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 18:02:45,280 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 18:02:45,282 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 18:02:45,282 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 18:02:45,283 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i [2024-10-14 18:02:46,865 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 18:02:47,146 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 18:02:47,148 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i [2024-10-14 18:02:47,171 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85a77a48a/03e66eb815674f3bba1a91e5514474ee/FLAGf22908ca6 [2024-10-14 18:02:47,187 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85a77a48a/03e66eb815674f3bba1a91e5514474ee [2024-10-14 18:02:47,190 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 18:02:47,192 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 18:02:47,195 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 18:02:47,195 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 18:02:47,200 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 18:02:47,201 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 06:02:47" (1/1) ... [2024-10-14 18:02:47,202 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@179143e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:02:47, skipping insertion in model container [2024-10-14 18:02:47,202 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 06:02:47" (1/1) ... [2024-10-14 18:02:47,252 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 18:02:47,645 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 18:02:47,671 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-10-14 18:02:47,680 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 18:02:47,738 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 18:02:47,750 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 18:02:47,805 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 18:02:47,849 INFO L204 MainTranslator]: Completed translation [2024-10-14 18:02:47,850 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:02:47 WrapperNode [2024-10-14 18:02:47,850 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 18:02:47,851 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 18:02:47,851 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 18:02:47,851 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 18:02:47,858 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:02:47" (1/1) ... [2024-10-14 18:02:47,885 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:02:47" (1/1) ... [2024-10-14 18:02:47,914 INFO L138 Inliner]: procedures = 170, calls = 73, calls flagged for inlining = 25, calls inlined = 7, statements flattened = 37 [2024-10-14 18:02:47,914 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 18:02:47,915 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 18:02:47,915 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 18:02:47,915 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 18:02:47,925 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:02:47" (1/1) ... [2024-10-14 18:02:47,926 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:02:47" (1/1) ... [2024-10-14 18:02:47,928 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:02:47" (1/1) ... [2024-10-14 18:02:47,948 INFO L175 MemorySlicer]: Split 2 memory accesses to 2 slices as follows [2, 0]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 0 writes are split as follows [0, 0]. [2024-10-14 18:02:47,948 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:02:47" (1/1) ... [2024-10-14 18:02:47,949 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:02:47" (1/1) ... [2024-10-14 18:02:47,954 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:02:47" (1/1) ... [2024-10-14 18:02:47,957 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:02:47" (1/1) ... [2024-10-14 18:02:47,959 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:02:47" (1/1) ... [2024-10-14 18:02:47,960 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:02:47" (1/1) ... [2024-10-14 18:02:47,966 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 18:02:47,967 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 18:02:47,968 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 18:02:47,968 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 18:02:47,968 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:02:47" (1/1) ... [2024-10-14 18:02:47,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 18:02:47,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 18:02:48,006 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 18:02:48,009 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 18:02:48,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-10-14 18:02:48,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-10-14 18:02:48,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-14 18:02:48,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 18:02:48,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-14 18:02:48,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-14 18:02:48,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-14 18:02:48,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 18:02:48,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 18:02:48,171 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 18:02:48,176 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 18:02:48,323 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-10-14 18:02:48,324 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 18:02:48,372 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 18:02:48,373 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 18:02:48,373 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:02:48 BoogieIcfgContainer [2024-10-14 18:02:48,373 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 18:02:48,378 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 18:02:48,378 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 18:02:48,382 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 18:02:48,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 06:02:47" (1/3) ... [2024-10-14 18:02:48,384 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69527e0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 06:02:48, skipping insertion in model container [2024-10-14 18:02:48,384 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:02:47" (2/3) ... [2024-10-14 18:02:48,384 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69527e0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 06:02:48, skipping insertion in model container [2024-10-14 18:02:48,385 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:02:48" (3/3) ... [2024-10-14 18:02:48,386 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test20-2.i [2024-10-14 18:02:48,403 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 18:02:48,403 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-14 18:02:48,449 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 18:02:48,456 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;@2f6a9030, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 18:02:48,456 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-14 18:02:48,462 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 17 states have internal predecessors, (20), 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 18:02:48,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-14 18:02:48,470 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 18:02:48,471 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 18:02:48,471 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2024-10-14 18:02:48,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 18:02:48,477 INFO L85 PathProgramCache]: Analyzing trace with hash -603213312, now seen corresponding path program 1 times [2024-10-14 18:02:48,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 18:02:48,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [115621142] [2024-10-14 18:02:48,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 18:02:48,491 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 18:02:48,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 18:02:48,494 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 18:02:48,495 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 18:02:48,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 18:02:48,604 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 18:02:48,608 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 18:02:48,691 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 18:02:48,691 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 18:02:48,692 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 18:02:48,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [115621142] [2024-10-14 18:02:48,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [115621142] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 18:02:48,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 18:02:48,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 18:02:48,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039374492] [2024-10-14 18:02:48,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 18:02:48,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 18:02:48,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 18:02:48,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 18:02:48,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 18:02:48,738 INFO L87 Difference]: Start difference. First operand has 20 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 17 states have internal predecessors, (20), 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) Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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 18:02:48,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 18:02:48,786 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2024-10-14 18:02:48,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 18:02:48,789 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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 11 [2024-10-14 18:02:48,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 18:02:48,794 INFO L225 Difference]: With dead ends: 24 [2024-10-14 18:02:48,795 INFO L226 Difference]: Without dead ends: 23 [2024-10-14 18:02:48,796 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 18:02:48,801 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 0 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 18:02:48,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 18:02:48,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-10-14 18:02:48,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-10-14 18:02:48,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 16 states have (on average 1.375) internal successors, (22), 19 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 18:02:48,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2024-10-14 18:02:48,833 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 11 [2024-10-14 18:02:48,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 18:02:48,834 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2024-10-14 18:02:48,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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 18:02:48,834 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2024-10-14 18:02:48,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-14 18:02:48,835 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 18:02:48,835 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 18:02:48,839 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 18:02:49,036 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 18:02:49,036 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2024-10-14 18:02:49,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 18:02:49,037 INFO L85 PathProgramCache]: Analyzing trace with hash -602408955, now seen corresponding path program 1 times [2024-10-14 18:02:49,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 18:02:49,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1321826679] [2024-10-14 18:02:49,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 18:02:49,038 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 18:02:49,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 18:02:49,040 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 18:02:49,042 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 18:02:49,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 18:02:49,119 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-14 18:02:49,121 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 18:02:49,194 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 18:02:49,195 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 18:02:49,195 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 18:02:49,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1321826679] [2024-10-14 18:02:49,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1321826679] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 18:02:49,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 18:02:49,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 18:02:49,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199178031] [2024-10-14 18:02:49,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 18:02:49,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 18:02:49,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 18:02:49,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 18:02:49,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-14 18:02:49,199 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 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 18:02:49,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 18:02:49,308 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2024-10-14 18:02:49,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 18:02:49,309 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 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 11 [2024-10-14 18:02:49,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 18:02:49,310 INFO L225 Difference]: With dead ends: 31 [2024-10-14 18:02:49,311 INFO L226 Difference]: Without dead ends: 31 [2024-10-14 18:02:49,311 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 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 18:02:49,313 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 7 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 18:02:49,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 86 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 18:02:49,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-10-14 18:02:49,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2024-10-14 18:02:49,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 22 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 18:02:49,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2024-10-14 18:02:49,321 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 11 [2024-10-14 18:02:49,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 18:02:49,321 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2024-10-14 18:02:49,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 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 18:02:49,322 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2024-10-14 18:02:49,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-14 18:02:49,323 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 18:02:49,323 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 18:02:49,328 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 18:02:49,524 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 18:02:49,524 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2024-10-14 18:02:49,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 18:02:49,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1139597023, now seen corresponding path program 1 times [2024-10-14 18:02:49,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 18:02:49,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [514228825] [2024-10-14 18:02:49,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 18:02:49,527 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 18:02:49,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 18:02:49,530 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 18:02:49,531 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 18:02:49,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 18:02:49,585 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 18:02:49,586 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 18:02:49,675 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 18:02:49,676 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 18:02:49,676 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 18:02:49,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [514228825] [2024-10-14 18:02:49,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [514228825] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 18:02:49,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 18:02:49,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 18:02:49,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654032529] [2024-10-14 18:02:49,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 18:02:49,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 18:02:49,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 18:02:49,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 18:02:49,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 18:02:49,679 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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 18:02:49,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 18:02:49,709 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2024-10-14 18:02:49,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 18:02:49,709 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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 11 [2024-10-14 18:02:49,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 18:02:49,710 INFO L225 Difference]: With dead ends: 25 [2024-10-14 18:02:49,710 INFO L226 Difference]: Without dead ends: 25 [2024-10-14 18:02:49,710 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 18:02:49,712 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 4 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 18:02:49,712 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 35 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 18:02:49,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-10-14 18:02:49,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2024-10-14 18:02:49,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 20 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 18:02:49,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2024-10-14 18:02:49,716 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 11 [2024-10-14 18:02:49,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 18:02:49,716 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2024-10-14 18:02:49,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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 18:02:49,716 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2024-10-14 18:02:49,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-14 18:02:49,717 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 18:02:49,717 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 18:02:49,721 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-10-14 18:02:49,917 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 18:02:49,918 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2024-10-14 18:02:49,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 18:02:49,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1494808363, now seen corresponding path program 1 times [2024-10-14 18:02:49,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 18:02:49,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [431064885] [2024-10-14 18:02:49,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 18:02:49,920 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 18:02:49,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 18:02:49,923 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 18:02:49,925 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 18:02:49,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 18:02:49,982 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-14 18:02:49,984 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 18:02:50,159 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 18:02:50,160 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 18:02:50,160 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 18:02:50,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [431064885] [2024-10-14 18:02:50,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [431064885] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 18:02:50,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 18:02:50,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 18:02:50,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958156610] [2024-10-14 18:02:50,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 18:02:50,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 18:02:50,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 18:02:50,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 18:02:50,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-14 18:02:50,162 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand has 9 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 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 18:02:50,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 18:02:50,338 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2024-10-14 18:02:50,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 18:02:50,340 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 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 12 [2024-10-14 18:02:50,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 18:02:50,341 INFO L225 Difference]: With dead ends: 31 [2024-10-14 18:02:50,341 INFO L226 Difference]: Without dead ends: 31 [2024-10-14 18:02:50,342 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-10-14 18:02:50,342 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 23 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 18:02:50,343 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 51 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 18:02:50,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-10-14 18:02:50,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 28. [2024-10-14 18:02:50,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 24 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 18:02:50,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2024-10-14 18:02:50,352 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 12 [2024-10-14 18:02:50,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 18:02:50,353 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2024-10-14 18:02:50,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 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 18:02:50,354 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2024-10-14 18:02:50,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-14 18:02:50,355 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 18:02:50,355 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 18:02:50,359 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 18:02:50,555 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 18:02:50,556 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2024-10-14 18:02:50,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 18:02:50,557 INFO L85 PathProgramCache]: Analyzing trace with hash 967777753, now seen corresponding path program 1 times [2024-10-14 18:02:50,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 18:02:50,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1403122189] [2024-10-14 18:02:50,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 18:02:50,558 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 18:02:50,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 18:02:50,561 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 18:02:50,562 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 (6)] Waiting until timeout for monitored process [2024-10-14 18:02:50,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 18:02:50,601 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 18:02:50,602 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 18:02:50,627 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 18:02:50,627 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 18:02:50,627 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 18:02:50,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1403122189] [2024-10-14 18:02:50,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1403122189] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 18:02:50,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 18:02:50,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 18:02:50,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362135992] [2024-10-14 18:02:50,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 18:02:50,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 18:02:50,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 18:02:50,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 18:02:50,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 18:02:50,629 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 18:02:50,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 18:02:50,668 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2024-10-14 18:02:50,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 18:02:50,668 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 12 [2024-10-14 18:02:50,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 18:02:50,669 INFO L225 Difference]: With dead ends: 32 [2024-10-14 18:02:50,670 INFO L226 Difference]: Without dead ends: 28 [2024-10-14 18:02:50,670 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 18:02:50,671 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 6 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 18:02:50,671 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 41 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 18:02:50,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-10-14 18:02:50,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2024-10-14 18:02:50,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.15) internal successors, (23), 22 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 18:02:50,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2024-10-14 18:02:50,675 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 12 [2024-10-14 18:02:50,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 18:02:50,675 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2024-10-14 18:02:50,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 18:02:50,675 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2024-10-14 18:02:50,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-14 18:02:50,676 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 18:02:50,676 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 18:02:50,679 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 18:02:50,876 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 18:02:50,877 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2024-10-14 18:02:50,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 18:02:50,878 INFO L85 PathProgramCache]: Analyzing trace with hash 992704470, now seen corresponding path program 1 times [2024-10-14 18:02:50,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 18:02:50,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [422574637] [2024-10-14 18:02:50,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 18:02:50,879 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 18:02:50,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 18:02:50,880 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 18:02:50,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-10-14 18:02:50,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 18:02:50,920 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-14 18:02:50,922 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 18:02:50,979 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 18:02:50,979 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 18:02:50,980 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 18:02:50,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [422574637] [2024-10-14 18:02:50,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [422574637] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 18:02:50,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 18:02:50,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 18:02:50,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387524290] [2024-10-14 18:02:50,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 18:02:50,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 18:02:50,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 18:02:50,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 18:02:50,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 18:02:50,983 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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 18:02:51,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 18:02:51,007 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2024-10-14 18:02:51,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 18:02:51,008 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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 12 [2024-10-14 18:02:51,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 18:02:51,008 INFO L225 Difference]: With dead ends: 21 [2024-10-14 18:02:51,008 INFO L226 Difference]: Without dead ends: 17 [2024-10-14 18:02:51,009 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 18:02:51,009 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 18:02:51,010 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 54 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 18:02:51,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-10-14 18:02:51,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-10-14 18:02:51,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 14 states have internal predecessors, (14), 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 18:02:51,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2024-10-14 18:02:51,012 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 12 [2024-10-14 18:02:51,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 18:02:51,013 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2024-10-14 18:02:51,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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 18:02:51,013 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2024-10-14 18:02:51,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-14 18:02:51,013 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 18:02:51,014 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 18:02:51,017 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-10-14 18:02:51,217 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 18:02:51,218 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2024-10-14 18:02:51,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 18:02:51,218 INFO L85 PathProgramCache]: Analyzing trace with hash 905581063, now seen corresponding path program 1 times [2024-10-14 18:02:51,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 18:02:51,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [680126750] [2024-10-14 18:02:51,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 18:02:51,219 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 18:02:51,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 18:02:51,222 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 18:02:51,223 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 18:02:51,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 18:02:51,265 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 18:02:51,267 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 18:02:51,293 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 18:02:51,367 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 18:02:51,367 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 18:02:51,367 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 18:02:51,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [680126750] [2024-10-14 18:02:51,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [680126750] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 18:02:51,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 18:02:51,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 18:02:51,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54865012] [2024-10-14 18:02:51,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 18:02:51,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 18:02:51,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 18:02:51,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 18:02:51,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-14 18:02:51,369 INFO L87 Difference]: Start difference. First operand 17 states and 16 transitions. Second operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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 18:02:51,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 18:02:51,459 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2024-10-14 18:02:51,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 18:02:51,459 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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 13 [2024-10-14 18:02:51,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 18:02:51,460 INFO L225 Difference]: With dead ends: 16 [2024-10-14 18:02:51,461 INFO L226 Difference]: Without dead ends: 16 [2024-10-14 18:02:51,461 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 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 18:02:51,462 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 4 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 18:02:51,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 28 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 18:02:51,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-10-14 18:02:51,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-10-14 18:02:51,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.0) internal successors, (13), 13 states have internal predecessors, (13), 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 18:02:51,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2024-10-14 18:02:51,468 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 13 [2024-10-14 18:02:51,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 18:02:51,468 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2024-10-14 18:02:51,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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 18:02:51,468 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2024-10-14 18:02:51,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-14 18:02:51,469 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 18:02:51,469 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 18:02:51,475 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-10-14 18:02:51,669 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 18:02:51,670 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2024-10-14 18:02:51,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 18:02:51,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1614957089, now seen corresponding path program 1 times [2024-10-14 18:02:51,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 18:02:51,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1613397816] [2024-10-14 18:02:51,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 18:02:51,671 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 18:02:51,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 18:02:51,673 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 18:02:51,674 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 18:02:51,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 18:02:51,715 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-14 18:02:51,717 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 18:02:51,909 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_free_20_~p~1#1.base_13| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_free_20_~p~1#1.base_13|)) (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_free_20_~p~1#1.base_13| (_ bv0 1))))) is different from true [2024-10-14 18:02:51,924 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 18:02:51,924 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 18:02:51,924 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 18:02:51,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1613397816] [2024-10-14 18:02:51,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1613397816] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 18:02:51,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 18:02:51,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 18:02:51,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486829090] [2024-10-14 18:02:51,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 18:02:51,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 18:02:51,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 18:02:51,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 18:02:51,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=74, Unknown=1, NotChecked=16, Total=110 [2024-10-14 18:02:51,930 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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 18:02:52,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 18:02:52,124 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2024-10-14 18:02:52,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 18:02:52,125 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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 15 [2024-10-14 18:02:52,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 18:02:52,125 INFO L225 Difference]: With dead ends: 15 [2024-10-14 18:02:52,126 INFO L226 Difference]: Without dead ends: 0 [2024-10-14 18:02:52,126 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=150, Unknown=1, NotChecked=24, Total=210 [2024-10-14 18:02:52,127 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 5 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 12 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 18:02:52,127 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 24 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 82 Invalid, 0 Unknown, 12 Unchecked, 0.1s Time] [2024-10-14 18:02:52,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-14 18:02:52,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-14 18:02:52,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 18:02:52,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-14 18:02:52,128 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2024-10-14 18:02:52,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 18:02:52,129 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-14 18:02:52,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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 18:02:52,129 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-14 18:02:52,129 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-14 18:02:52,133 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE (3 of 4 remaining) [2024-10-14 18:02:52,135 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE (2 of 4 remaining) [2024-10-14 18:02:52,135 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (1 of 4 remaining) [2024-10-14 18:02:52,136 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (0 of 4 remaining) [2024-10-14 18:02:52,139 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 18:02:52,336 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 18:02:52,339 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 18:02:52,341 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 18:02:52,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 06:02:52 BoogieIcfgContainer [2024-10-14 18:02:52,343 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 18:02:52,344 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 18:02:52,344 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 18:02:52,344 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 18:02:52,345 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:02:48" (3/4) ... [2024-10-14 18:02:52,352 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-14 18:02:52,355 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2024-10-14 18:02:52,359 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-10-14 18:02:52,359 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-14 18:02:52,359 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-14 18:02:52,446 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-14 18:02:52,449 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-14 18:02:52,449 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 18:02:52,450 INFO L158 Benchmark]: Toolchain (without parser) took 5258.27ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 46.0MB in the beginning and 64.4MB in the end (delta: -18.4MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. [2024-10-14 18:02:52,450 INFO L158 Benchmark]: CDTParser took 1.27ms. Allocated memory is still 58.7MB. Free memory was 30.3MB in the beginning and 30.2MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 18:02:52,451 INFO L158 Benchmark]: CACSL2BoogieTranslator took 655.49ms. Allocated memory is still 75.5MB. Free memory was 45.8MB in the beginning and 34.4MB in the end (delta: 11.4MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2024-10-14 18:02:52,451 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.55ms. Allocated memory is still 75.5MB. Free memory was 34.4MB in the beginning and 53.3MB in the end (delta: -18.9MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. [2024-10-14 18:02:52,451 INFO L158 Benchmark]: Boogie Preprocessor took 51.64ms. Allocated memory is still 75.5MB. Free memory was 53.3MB in the beginning and 51.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 18:02:52,451 INFO L158 Benchmark]: RCFGBuilder took 405.73ms. Allocated memory is still 75.5MB. Free memory was 51.3MB in the beginning and 35.8MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-14 18:02:52,452 INFO L158 Benchmark]: TraceAbstraction took 3965.25ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 35.4MB in the beginning and 27.3MB in the end (delta: 8.1MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. [2024-10-14 18:02:52,452 INFO L158 Benchmark]: Witness Printer took 105.38ms. Allocated memory is still 92.3MB. Free memory was 27.3MB in the beginning and 64.4MB in the end (delta: -37.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 18:02:52,455 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.27ms. Allocated memory is still 58.7MB. Free memory was 30.3MB in the beginning and 30.2MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 655.49ms. Allocated memory is still 75.5MB. Free memory was 45.8MB in the beginning and 34.4MB in the end (delta: 11.4MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.55ms. Allocated memory is still 75.5MB. Free memory was 34.4MB in the beginning and 53.3MB in the end (delta: -18.9MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.64ms. Allocated memory is still 75.5MB. Free memory was 53.3MB in the beginning and 51.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 405.73ms. Allocated memory is still 75.5MB. Free memory was 51.3MB in the beginning and 35.8MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3965.25ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 35.4MB in the beginning and 27.3MB in the end (delta: 8.1MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. * Witness Printer took 105.38ms. Allocated memory is still 92.3MB. Free memory was 27.3MB in the beginning and 64.4MB in the end (delta: -37.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 781]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 781]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 781]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 789]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 20 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3.9s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 49 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 49 mSDsluCounter, 380 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 12 IncrementalHoareTripleChecker+Unchecked, 281 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 398 IncrementalHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 99 mSDtfsCounter, 398 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=4, InterpolantAutomatonStates: 54, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 11 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 89 ConstructedInterpolants, 2 QuantifiedInterpolants, 478 SizeOfPredicates, 6 NumberOfNonLiveVariables, 352 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-14 18:02:52,484 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE