./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_test18_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 12544117846b274bd1cb12a6694f8fda1d77f0b1327b2e9a353cfe44563b100a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 18:04:11,111 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 18:04:11,173 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-11 18:04:11,180 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 18:04:11,181 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 18:04:11,209 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 18:04:11,210 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 18:04:11,210 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 18:04:11,211 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 18:04:11,211 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 18:04:11,211 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 18:04:11,212 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 18:04:11,212 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 18:04:11,212 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 18:04:11,213 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 18:04:11,213 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 18:04:11,213 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 18:04:11,214 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 18:04:11,214 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 18:04:11,217 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 18:04:11,220 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 18:04:11,221 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 18:04:11,221 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 18:04:11,221 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 18:04:11,222 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 18:04:11,222 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 18:04:11,222 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 18:04:11,222 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 18:04:11,223 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 18:04:11,223 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 18:04:11,223 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 18:04:11,223 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 18:04:11,224 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 18:04:11,224 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 18:04:11,224 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 18:04:11,224 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 18:04:11,224 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 18:04:11,225 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 18:04:11,225 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 18:04:11,225 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 18:04:11,226 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 18:04:11,226 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 18:04:11,226 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12544117846b274bd1cb12a6694f8fda1d77f0b1327b2e9a353cfe44563b100a [2024-10-11 18:04:11,454 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 18:04:11,484 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 18:04:11,487 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 18:04:11,488 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 18:04:11,488 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 18:04:11,490 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i [2024-10-11 18:04:12,858 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 18:04:13,087 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 18:04:13,088 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i [2024-10-11 18:04:13,108 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/6ae8eaad4/b4b3886355a444e7b1096b77a0aff4a2/FLAGaee422eb9 [2024-10-11 18:04:13,124 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/6ae8eaad4/b4b3886355a444e7b1096b77a0aff4a2 [2024-10-11 18:04:13,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 18:04:13,128 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 18:04:13,130 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 18:04:13,130 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 18:04:13,136 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 18:04:13,137 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:04:13" (1/1) ... [2024-10-11 18:04:13,140 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77e53714 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:04:13, skipping insertion in model container [2024-10-11 18:04:13,140 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:04:13" (1/1) ... [2024-10-11 18:04:13,191 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 18:04:13,571 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 18:04:13,588 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) [2024-10-11 18:04:13,589 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@182c9efc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:04:13, skipping insertion in model container [2024-10-11 18:04:13,589 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 18:04:13,589 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-10-11 18:04:13,591 INFO L158 Benchmark]: Toolchain (without parser) took 461.69ms. Allocated memory was 140.5MB in the beginning and 201.3MB in the end (delta: 60.8MB). Free memory was 68.8MB in the beginning and 165.7MB in the end (delta: -96.8MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. [2024-10-11 18:04:13,591 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 140.5MB. Free memory is still 92.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 18:04:13,592 INFO L158 Benchmark]: CACSL2BoogieTranslator took 458.88ms. Allocated memory was 140.5MB in the beginning and 201.3MB in the end (delta: 60.8MB). Free memory was 68.7MB in the beginning and 165.7MB in the end (delta: -97.0MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. [2024-10-11 18:04:13,593 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 140.5MB. Free memory is still 92.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 458.88ms. Allocated memory was 140.5MB in the beginning and 201.3MB in the end (delta: 60.8MB). Free memory was 68.7MB in the beginning and 165.7MB in the end (delta: -97.0MB). Peak memory consumption was 16.1MB. 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-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 12544117846b274bd1cb12a6694f8fda1d77f0b1327b2e9a353cfe44563b100a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 18:04:15,500 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 18:04:15,582 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-10-11 18:04:15,592 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 18:04:15,593 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 18:04:15,626 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 18:04:15,626 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 18:04:15,627 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 18:04:15,627 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 18:04:15,630 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 18:04:15,630 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 18:04:15,631 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 18:04:15,631 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 18:04:15,631 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 18:04:15,632 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 18:04:15,632 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 18:04:15,633 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 18:04:15,633 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 18:04:15,633 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 18:04:15,633 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 18:04:15,634 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 18:04:15,634 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 18:04:15,634 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 18:04:15,634 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 18:04:15,634 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 18:04:15,634 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-11 18:04:15,635 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 18:04:15,635 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-11 18:04:15,635 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 18:04:15,635 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 18:04:15,635 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 18:04:15,635 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 18:04:15,636 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 18:04:15,636 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 18:04:15,636 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 18:04:15,637 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 18:04:15,638 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 18:04:15,638 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 18:04:15,639 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-11 18:04:15,639 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-11 18:04:15,639 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 18:04:15,639 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 18:04:15,639 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 18:04:15,640 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 18:04:15,640 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-11 18:04:15,640 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12544117846b274bd1cb12a6694f8fda1d77f0b1327b2e9a353cfe44563b100a [2024-10-11 18:04:15,939 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 18:04:15,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 18:04:15,966 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 18:04:15,968 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 18:04:15,968 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 18:04:15,970 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i [2024-10-11 18:04:17,426 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 18:04:17,706 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 18:04:17,706 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i [2024-10-11 18:04:17,730 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/0b9ebe93b/15983f5150104285a617c6aa6b80f533/FLAGe333441f7 [2024-10-11 18:04:17,748 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/0b9ebe93b/15983f5150104285a617c6aa6b80f533 [2024-10-11 18:04:17,751 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 18:04:17,753 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 18:04:17,755 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 18:04:17,756 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 18:04:17,761 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 18:04:17,762 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:04:17" (1/1) ... [2024-10-11 18:04:17,763 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32747a75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:04:17, skipping insertion in model container [2024-10-11 18:04:17,763 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:04:17" (1/1) ... [2024-10-11 18:04:17,811 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 18:04:18,209 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 18:04:18,228 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-10-11 18:04:18,238 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 18:04:18,292 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 18:04:18,298 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 18:04:18,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 18:04:18,391 INFO L204 MainTranslator]: Completed translation [2024-10-11 18:04:18,392 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:04:18 WrapperNode [2024-10-11 18:04:18,392 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 18:04:18,394 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 18:04:18,394 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 18:04:18,394 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 18:04:18,399 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:04:18" (1/1) ... [2024-10-11 18:04:18,431 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:04:18" (1/1) ... [2024-10-11 18:04:18,448 INFO L138 Inliner]: procedures = 165, calls = 72, calls flagged for inlining = 21, calls inlined = 3, statements flattened = 48 [2024-10-11 18:04:18,449 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 18:04:18,449 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 18:04:18,450 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 18:04:18,450 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 18:04:18,460 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:04:18" (1/1) ... [2024-10-11 18:04:18,460 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:04:18" (1/1) ... [2024-10-11 18:04:18,463 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:04:18" (1/1) ... [2024-10-11 18:04:18,475 INFO L175 MemorySlicer]: Split 4 memory accesses to 2 slices as follows [2, 2]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-10-11 18:04:18,476 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:04:18" (1/1) ... [2024-10-11 18:04:18,476 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:04:18" (1/1) ... [2024-10-11 18:04:18,481 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:04:18" (1/1) ... [2024-10-11 18:04:18,484 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:04:18" (1/1) ... [2024-10-11 18:04:18,486 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:04:18" (1/1) ... [2024-10-11 18:04:18,487 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:04:18" (1/1) ... [2024-10-11 18:04:18,489 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 18:04:18,490 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 18:04:18,490 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 18:04:18,490 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 18:04:18,491 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:04:18" (1/1) ... [2024-10-11 18:04:18,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 18:04:18,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 18:04:18,530 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 18:04:18,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 18:04:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-10-11 18:04:18,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-10-11 18:04:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-11 18:04:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 18:04:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-11 18:04:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-11 18:04:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-11 18:04:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-11 18:04:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 18:04:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-11 18:04:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-11 18:04:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 18:04:18,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 18:04:18,749 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 18:04:18,752 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 18:04:18,975 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-10-11 18:04:18,978 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 18:04:19,020 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 18:04:19,021 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-11 18:04:19,022 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 06:04:19 BoogieIcfgContainer [2024-10-11 18:04:19,022 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 18:04:19,025 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 18:04:19,026 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 18:04:19,029 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 18:04:19,029 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 06:04:17" (1/3) ... [2024-10-11 18:04:19,030 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54aaa795 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 06:04:19, skipping insertion in model container [2024-10-11 18:04:19,031 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:04:18" (2/3) ... [2024-10-11 18:04:19,031 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54aaa795 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 06:04:19, skipping insertion in model container [2024-10-11 18:04:19,031 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 06:04:19" (3/3) ... [2024-10-11 18:04:19,033 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test18_1.i [2024-10-11 18:04:19,050 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 18:04:19,051 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-10-11 18:04:19,101 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 18:04:19,111 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;@24e3ea41, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 18:04:19,111 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-11 18:04:19,115 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 26 states have internal predecessors, (33), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 18:04:19,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-11 18:04:19,121 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 18:04:19,122 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 18:04:19,123 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2024-10-11 18:04:19,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 18:04:19,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1259304932, now seen corresponding path program 1 times [2024-10-11 18:04:19,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 18:04:19,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [817986476] [2024-10-11 18:04:19,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 18:04:19,144 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 [2024-10-11 18:04:19,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 18:04:19,149 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 18:04:19,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 18:04:19,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 18:04:19,260 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 18:04:19,264 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 18:04:19,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 18:04:19,326 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 18:04:19,327 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 18:04:19,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [817986476] [2024-10-11 18:04:19,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [817986476] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 18:04:19,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 18:04:19,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 18:04:19,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317429846] [2024-10-11 18:04:19,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 18:04:19,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 18:04:19,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 18:04:19,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 18:04:19,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 18:04:19,359 INFO L87 Difference]: Start difference. First operand has 30 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 26 states have internal predecessors, (33), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 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) [2024-10-11 18:04:19,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 18:04:19,447 INFO L93 Difference]: Finished difference Result 49 states and 64 transitions. [2024-10-11 18:04:19,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 18:04:19,451 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 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 10 [2024-10-11 18:04:19,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 18:04:19,457 INFO L225 Difference]: With dead ends: 49 [2024-10-11 18:04:19,457 INFO L226 Difference]: Without dead ends: 48 [2024-10-11 18:04:19,459 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 18:04:19,462 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 17 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 18:04:19,462 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 93 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 18:04:19,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-10-11 18:04:19,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 33. [2024-10-11 18:04:19,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 28 states have internal predecessors, (33), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-11 18:04:19,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions. [2024-10-11 18:04:19,496 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 39 transitions. Word has length 10 [2024-10-11 18:04:19,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 18:04:19,496 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 39 transitions. [2024-10-11 18:04:19,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 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) [2024-10-11 18:04:19,497 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2024-10-11 18:04:19,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-11 18:04:19,498 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 18:04:19,498 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 18:04:19,503 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 18:04:19,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 18:04:19,702 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2024-10-11 18:04:19,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 18:04:19,703 INFO L85 PathProgramCache]: Analyzing trace with hash 2146808613, now seen corresponding path program 1 times [2024-10-11 18:04:19,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 18:04:19,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1896237913] [2024-10-11 18:04:19,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 18:04:19,704 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 [2024-10-11 18:04:19,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 18:04:19,724 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 18:04:19,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 18:04:19,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 18:04:19,791 INFO L255 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 18:04:19,792 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 18:04:19,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 18:04:19,821 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 18:04:19,821 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 18:04:19,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1896237913] [2024-10-11 18:04:19,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1896237913] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 18:04:19,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 18:04:19,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 18:04:19,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221409224] [2024-10-11 18:04:19,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 18:04:19,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 18:04:19,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 18:04:19,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 18:04:19,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 18:04:19,824 INFO L87 Difference]: Start difference. First operand 33 states and 39 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2024-10-11 18:04:19,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 18:04:19,902 INFO L93 Difference]: Finished difference Result 53 states and 63 transitions. [2024-10-11 18:04:19,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 18:04:19,903 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 10 [2024-10-11 18:04:19,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 18:04:19,904 INFO L225 Difference]: With dead ends: 53 [2024-10-11 18:04:19,904 INFO L226 Difference]: Without dead ends: 51 [2024-10-11 18:04:19,904 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 18:04:19,905 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 20 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 18:04:19,905 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 111 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 18:04:19,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-10-11 18:04:19,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 40. [2024-10-11 18:04:19,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 27 states have (on average 1.5555555555555556) internal successors, (42), 34 states have internal predecessors, (42), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-11 18:04:19,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2024-10-11 18:04:19,911 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 10 [2024-10-11 18:04:19,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 18:04:19,911 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2024-10-11 18:04:19,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2024-10-11 18:04:19,912 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2024-10-11 18:04:19,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-11 18:04:19,912 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 18:04:19,913 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 18:04:19,916 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-10-11 18:04:20,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 18:04:20,117 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2024-10-11 18:04:20,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 18:04:20,117 INFO L85 PathProgramCache]: Analyzing trace with hash -988165480, now seen corresponding path program 1 times [2024-10-11 18:04:20,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 18:04:20,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [579725189] [2024-10-11 18:04:20,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 18:04:20,118 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 [2024-10-11 18:04:20,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 18:04:20,123 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 18:04:20,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 18:04:20,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 18:04:20,191 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 18:04:20,193 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 18:04:20,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 18:04:20,226 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 18:04:20,227 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 18:04:20,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [579725189] [2024-10-11 18:04:20,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [579725189] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 18:04:20,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 18:04:20,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 18:04:20,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681945931] [2024-10-11 18:04:20,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 18:04:20,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 18:04:20,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 18:04:20,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 18:04:20,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 18:04:20,230 INFO L87 Difference]: Start difference. First operand 40 states and 51 transitions. Second operand has 4 states, 4 states have (on average 2.5) 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) [2024-10-11 18:04:20,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 18:04:20,275 INFO L93 Difference]: Finished difference Result 67 states and 88 transitions. [2024-10-11 18:04:20,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 18:04:20,276 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) 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 [2024-10-11 18:04:20,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 18:04:20,278 INFO L225 Difference]: With dead ends: 67 [2024-10-11 18:04:20,278 INFO L226 Difference]: Without dead ends: 67 [2024-10-11 18:04:20,279 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 18:04:20,280 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 32 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 18:04:20,280 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 58 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 18:04:20,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2024-10-11 18:04:20,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 42. [2024-10-11 18:04:20,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 29 states have (on average 1.5172413793103448) internal successors, (44), 36 states have internal predecessors, (44), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-11 18:04:20,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 53 transitions. [2024-10-11 18:04:20,294 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 53 transitions. Word has length 12 [2024-10-11 18:04:20,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 18:04:20,294 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 53 transitions. [2024-10-11 18:04:20,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) 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) [2024-10-11 18:04:20,294 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 53 transitions. [2024-10-11 18:04:20,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-11 18:04:20,295 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 18:04:20,295 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 18:04:20,299 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 18:04:20,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 18:04:20,497 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2024-10-11 18:04:20,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 18:04:20,497 INFO L85 PathProgramCache]: Analyzing trace with hash -247090845, now seen corresponding path program 1 times [2024-10-11 18:04:20,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 18:04:20,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [831812534] [2024-10-11 18:04:20,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 18:04:20,498 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 18:04:20,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 18:04:20,507 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 18:04:20,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 18:04:20,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 18:04:20,559 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 18:04:20,562 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 18:04:20,594 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 [2024-10-11 18:04:20,725 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2024-10-11 18:04:20,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2024-10-11 18:04:20,737 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 18:04:20,738 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 18:04:26,093 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 18:04:26,093 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 18:04:26,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [831812534] [2024-10-11 18:04:26,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [831812534] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 18:04:26,094 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 18:04:26,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2024-10-11 18:04:26,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542674695] [2024-10-11 18:04:26,095 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 18:04:26,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 18:04:26,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 18:04:26,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 18:04:26,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-11 18:04:26,096 INFO L87 Difference]: Start difference. First operand 42 states and 53 transitions. Second operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 18:04:26,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 18:04:26,301 INFO L93 Difference]: Finished difference Result 55 states and 74 transitions. [2024-10-11 18:04:26,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 18:04:26,301 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 17 [2024-10-11 18:04:26,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 18:04:26,302 INFO L225 Difference]: With dead ends: 55 [2024-10-11 18:04:26,302 INFO L226 Difference]: Without dead ends: 55 [2024-10-11 18:04:26,302 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-10-11 18:04:26,303 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 14 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 18:04:26,303 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 99 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 18:04:26,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-10-11 18:04:26,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2024-10-11 18:04:26,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 40 states have (on average 1.525) internal successors, (61), 46 states have internal predecessors, (61), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) [2024-10-11 18:04:26,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 73 transitions. [2024-10-11 18:04:26,309 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 73 transitions. Word has length 17 [2024-10-11 18:04:26,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 18:04:26,309 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 73 transitions. [2024-10-11 18:04:26,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 18:04:26,310 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 73 transitions. [2024-10-11 18:04:26,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-11 18:04:26,310 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 18:04:26,310 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 18:04:26,319 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-10-11 18:04:26,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 18:04:26,511 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2024-10-11 18:04:26,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 18:04:26,512 INFO L85 PathProgramCache]: Analyzing trace with hash -247090844, now seen corresponding path program 1 times [2024-10-11 18:04:26,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 18:04:26,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2045369134] [2024-10-11 18:04:26,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 18:04:26,512 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 [2024-10-11 18:04:26,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 18:04:26,514 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 18:04:26,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 18:04:26,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 18:04:26,569 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-11 18:04:26,572 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 18:04:26,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-11 18:04:26,604 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 [2024-10-11 18:04:26,789 WARN L873 $PredicateComparison]: unable to prove that (exists ((|ldv_malloc_#res.base| (_ BitVec 32))) (and (= (store |c_old(#length)| |ldv_malloc_#res.base| (select |c_#length| |ldv_malloc_#res.base|)) |c_#length|) (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#res.base|)))) is different from true [2024-10-11 18:04:26,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 18:04:26,822 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-10-11 18:04:26,838 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-11 18:04:26,839 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-10-11 18:04:26,882 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2024-10-11 18:04:26,883 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 18:04:27,231 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 18:04:27,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2045369134] [2024-10-11 18:04:27,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2045369134] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 18:04:27,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [129424986] [2024-10-11 18:04:27,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 18:04:27,232 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-10-11 18:04:27,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/cvc4 [2024-10-11 18:04:27,239 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-10-11 18:04:27,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-10-11 18:04:27,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 18:04:27,348 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-11 18:04:27,350 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 18:04:27,369 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 [2024-10-11 18:04:27,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-11 18:04:27,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 18:04:27,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-10-11 18:04:27,523 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-11 18:04:27,524 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-10-11 18:04:27,551 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2024-10-11 18:04:27,552 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 18:04:27,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [129424986] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 18:04:27,729 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 18:04:27,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2024-10-11 18:04:27,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260020246] [2024-10-11 18:04:27,730 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 18:04:27,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 18:04:27,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 18:04:27,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 18:04:27,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=88, Unknown=1, NotChecked=18, Total=132 [2024-10-11 18:04:27,731 INFO L87 Difference]: Start difference. First operand 54 states and 73 transitions. Second operand has 10 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 18:04:28,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 18:04:28,013 INFO L93 Difference]: Finished difference Result 79 states and 105 transitions. [2024-10-11 18:04:28,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 18:04:28,014 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2024-10-11 18:04:28,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 18:04:28,015 INFO L225 Difference]: With dead ends: 79 [2024-10-11 18:04:28,015 INFO L226 Difference]: Without dead ends: 79 [2024-10-11 18:04:28,016 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=49, Invalid=194, Unknown=1, NotChecked=28, Total=272 [2024-10-11 18:04:28,016 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 37 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 63 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 18:04:28,017 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 140 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 152 Invalid, 0 Unknown, 63 Unchecked, 0.2s Time] [2024-10-11 18:04:28,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-10-11 18:04:28,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 58. [2024-10-11 18:04:28,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 43 states have (on average 1.5116279069767442) internal successors, (65), 49 states have internal predecessors, (65), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) [2024-10-11 18:04:28,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 80 transitions. [2024-10-11 18:04:28,023 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 80 transitions. Word has length 17 [2024-10-11 18:04:28,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 18:04:28,026 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 80 transitions. [2024-10-11 18:04:28,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 18:04:28,027 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 80 transitions. [2024-10-11 18:04:28,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-11 18:04:28,030 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 18:04:28,030 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 18:04:28,036 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-10-11 18:04:28,234 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2024-10-11 18:04:28,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-10-11 18:04:28,431 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2024-10-11 18:04:28,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 18:04:28,432 INFO L85 PathProgramCache]: Analyzing trace with hash -752649470, now seen corresponding path program 1 times [2024-10-11 18:04:28,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 18:04:28,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [348393984] [2024-10-11 18:04:28,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 18:04:28,432 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 [2024-10-11 18:04:28,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 18:04:28,435 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 18:04:28,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 18:04:28,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 18:04:28,473 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 18:04:28,474 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 18:04:28,507 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 18:04:28,507 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 18:04:28,507 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 18:04:28,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [348393984] [2024-10-11 18:04:28,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [348393984] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 18:04:28,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 18:04:28,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 18:04:28,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858207636] [2024-10-11 18:04:28,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 18:04:28,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 18:04:28,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 18:04:28,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 18:04:28,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 18:04:28,509 INFO L87 Difference]: Start difference. First operand 58 states and 80 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 18:04:28,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 18:04:28,550 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2024-10-11 18:04:28,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 18:04:28,550 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2024-10-11 18:04:28,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 18:04:28,551 INFO L225 Difference]: With dead ends: 39 [2024-10-11 18:04:28,551 INFO L226 Difference]: Without dead ends: 37 [2024-10-11 18:04:28,551 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 18:04:28,552 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 0 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 18:04:28,552 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 115 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 18:04:28,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-10-11 18:04:28,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-10-11 18:04:28,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 25 states have (on average 1.52) internal successors, (38), 32 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-10-11 18:04:28,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 46 transitions. [2024-10-11 18:04:28,558 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 46 transitions. Word has length 17 [2024-10-11 18:04:28,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 18:04:28,558 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 46 transitions. [2024-10-11 18:04:28,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 18:04:28,558 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 46 transitions. [2024-10-11 18:04:28,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-11 18:04:28,559 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 18:04:28,559 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 18:04:28,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2024-10-11 18:04:28,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 18:04:28,762 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2024-10-11 18:04:28,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 18:04:28,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1231152113, now seen corresponding path program 1 times [2024-10-11 18:04:28,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 18:04:28,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [29197862] [2024-10-11 18:04:28,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 18:04:28,763 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 [2024-10-11 18:04:28,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 18:04:28,766 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 18:04:28,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 18:04:28,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 18:04:28,804 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 18:04:28,805 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 18:04:28,826 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 18:04:28,826 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 18:04:28,827 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 18:04:28,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [29197862] [2024-10-11 18:04:28,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [29197862] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 18:04:28,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 18:04:28,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 18:04:28,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996169658] [2024-10-11 18:04:28,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 18:04:28,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 18:04:28,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 18:04:28,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 18:04:28,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 18:04:28,828 INFO L87 Difference]: Start difference. First operand 37 states and 46 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 18:04:28,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 18:04:28,860 INFO L93 Difference]: Finished difference Result 44 states and 53 transitions. [2024-10-11 18:04:28,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 18:04:28,861 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2024-10-11 18:04:28,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 18:04:28,861 INFO L225 Difference]: With dead ends: 44 [2024-10-11 18:04:28,861 INFO L226 Difference]: Without dead ends: 44 [2024-10-11 18:04:28,861 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 18:04:28,862 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 2 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 18:04:28,862 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 102 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 18:04:28,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-10-11 18:04:28,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 41. [2024-10-11 18:04:28,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 29 states have (on average 1.4482758620689655) internal successors, (42), 34 states have internal predecessors, (42), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2024-10-11 18:04:28,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions. [2024-10-11 18:04:28,871 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 50 transitions. Word has length 19 [2024-10-11 18:04:28,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 18:04:28,871 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 50 transitions. [2024-10-11 18:04:28,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 18:04:28,872 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2024-10-11 18:04:28,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-11 18:04:28,872 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 18:04:28,872 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 18:04:28,877 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 18:04:29,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 18:04:29,073 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2024-10-11 18:04:29,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 18:04:29,073 INFO L85 PathProgramCache]: Analyzing trace with hash 511658222, now seen corresponding path program 1 times [2024-10-11 18:04:29,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 18:04:29,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1209914500] [2024-10-11 18:04:29,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 18:04:29,074 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 [2024-10-11 18:04:29,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 18:04:29,076 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 18:04:29,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-10-11 18:04:29,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 18:04:29,120 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 18:04:29,121 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 18:04:29,141 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 18:04:29,142 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 18:04:29,142 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 18:04:29,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1209914500] [2024-10-11 18:04:29,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1209914500] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 18:04:29,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 18:04:29,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 18:04:29,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669991480] [2024-10-11 18:04:29,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 18:04:29,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 18:04:29,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 18:04:29,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 18:04:29,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 18:04:29,143 INFO L87 Difference]: Start difference. First operand 41 states and 50 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 18:04:29,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 18:04:29,191 INFO L93 Difference]: Finished difference Result 43 states and 52 transitions. [2024-10-11 18:04:29,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 18:04:29,192 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19 [2024-10-11 18:04:29,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 18:04:29,193 INFO L225 Difference]: With dead ends: 43 [2024-10-11 18:04:29,193 INFO L226 Difference]: Without dead ends: 43 [2024-10-11 18:04:29,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 18:04:29,194 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 1 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 18:04:29,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 71 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 18:04:29,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-10-11 18:04:29,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2024-10-11 18:04:29,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 31 states have (on average 1.4193548387096775) internal successors, (44), 36 states have internal predecessors, (44), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2024-10-11 18:04:29,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 52 transitions. [2024-10-11 18:04:29,200 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 52 transitions. Word has length 19 [2024-10-11 18:04:29,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 18:04:29,200 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 52 transitions. [2024-10-11 18:04:29,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 18:04:29,201 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 52 transitions. [2024-10-11 18:04:29,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-10-11 18:04:29,201 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 18:04:29,201 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 18:04:29,206 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-10-11 18:04:29,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 18:04:29,402 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2024-10-11 18:04:29,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 18:04:29,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1318465756, now seen corresponding path program 1 times [2024-10-11 18:04:29,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 18:04:29,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [231539469] [2024-10-11 18:04:29,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 18:04:29,403 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 [2024-10-11 18:04:29,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 18:04:29,404 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 18:04:29,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-10-11 18:04:29,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 18:04:29,458 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 18:04:29,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 18:04:29,500 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-10-11 18:04:29,500 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 18:04:29,501 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2024-10-11 18:04:29,502 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2024-10-11 18:04:29,502 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 8 remaining) [2024-10-11 18:04:29,502 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 8 remaining) [2024-10-11 18:04:29,503 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2024-10-11 18:04:29,503 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE (2 of 8 remaining) [2024-10-11 18:04:29,503 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE (1 of 8 remaining) [2024-10-11 18:04:29,503 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE (0 of 8 remaining) [2024-10-11 18:04:29,507 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2024-10-11 18:04:29,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 18:04:29,709 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 18:04:29,737 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 18:04:29,739 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 06:04:29 BoogieIcfgContainer [2024-10-11 18:04:29,739 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 18:04:29,739 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 18:04:29,739 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 18:04:29,739 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 18:04:29,740 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 06:04:19" (3/4) ... [2024-10-11 18:04:29,741 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-11 18:04:29,742 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 18:04:29,743 INFO L158 Benchmark]: Toolchain (without parser) took 11989.89ms. Allocated memory was 71.3MB in the beginning and 94.4MB in the end (delta: 23.1MB). Free memory was 41.9MB in the beginning and 69.3MB in the end (delta: -27.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 18:04:29,743 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 52.4MB. Free memory is still 35.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 18:04:29,743 INFO L158 Benchmark]: CACSL2BoogieTranslator took 637.02ms. Allocated memory is still 71.3MB. Free memory was 41.7MB in the beginning and 30.2MB in the end (delta: 11.5MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2024-10-11 18:04:29,743 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.34ms. Allocated memory is still 71.3MB. Free memory was 30.2MB in the beginning and 49.4MB in the end (delta: -19.2MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. [2024-10-11 18:04:29,743 INFO L158 Benchmark]: Boogie Preprocessor took 39.64ms. Allocated memory is still 71.3MB. Free memory was 49.4MB in the beginning and 46.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 18:04:29,744 INFO L158 Benchmark]: RCFGBuilder took 532.91ms. Allocated memory is still 71.3MB. Free memory was 46.8MB in the beginning and 29.8MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-11 18:04:29,744 INFO L158 Benchmark]: TraceAbstraction took 10713.79ms. Allocated memory was 71.3MB in the beginning and 94.4MB in the end (delta: 23.1MB). Free memory was 29.3MB in the beginning and 69.3MB in the end (delta: -40.0MB). Peak memory consumption was 25.8MB. Max. memory is 16.1GB. [2024-10-11 18:04:29,744 INFO L158 Benchmark]: Witness Printer took 3.05ms. Allocated memory is still 94.4MB. Free memory is still 69.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 18:04:29,745 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 52.4MB. Free memory is still 35.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 637.02ms. Allocated memory is still 71.3MB. Free memory was 41.7MB in the beginning and 30.2MB in the end (delta: 11.5MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.34ms. Allocated memory is still 71.3MB. Free memory was 30.2MB in the beginning and 49.4MB in the end (delta: -19.2MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.64ms. Allocated memory is still 71.3MB. Free memory was 49.4MB in the beginning and 46.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 532.91ms. Allocated memory is still 71.3MB. Free memory was 46.8MB in the beginning and 29.8MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 10713.79ms. Allocated memory was 71.3MB in the beginning and 94.4MB in the end (delta: 23.1MB). Free memory was 29.3MB in the beginning and 69.3MB in the end (delta: -40.0MB). Peak memory consumption was 25.8MB. Max. memory is 16.1GB. * Witness Printer took 3.05ms. Allocated memory is still 94.4MB. Free memory is still 69.3MB. There was no memory consumed. 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 - UnprovableResult [Line: 778]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 778. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L779] CALL entry_point() [L761] int len = 10; VAL [ldv_global_msg_list={1:0}, len=10] [L762] CALL, EXPR ldv_malloc(sizeof(struct A18*)*len) VAL [\old(size)=40, ldv_global_msg_list={1:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L762] RET, EXPR ldv_malloc(sizeof(struct A18*)*len) VAL [ldv_global_msg_list={1:0}, len=10] [L762] struct A18 **array = (struct A18 **)ldv_malloc(sizeof(struct A18*)*len); [L763] struct A18 *p; [L764] int i=0; [L765] int j; VAL [array={2:0}, i=0, ldv_global_msg_list={1:0}, len=10] [L766] COND FALSE !(!array) VAL [array={2:0}, i=0, ldv_global_msg_list={1:0}, len=10] [L767] COND TRUE i=0) VAL [array={2:0}, ldv_global_msg_list={1:0}, len=10] [L779] RET entry_point() - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 30 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 10.6s, OverallIterations: 9, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 131 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 123 mSDsluCounter, 789 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 63 IncrementalHoareTripleChecker+Unchecked, 551 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 441 IncrementalHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 238 mSDtfsCounter, 441 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 159 GetRequests, 119 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 5.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=5, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 76 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 6.8s InterpolantComputationTime, 158 NumberOfCodeBlocks, 158 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 145 ConstructedInterpolants, 10 QuantifiedInterpolants, 799 SizeOfPredicates, 5 NumberOfNonLiveVariables, 469 ConjunctsInSsa, 74 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 18/28 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-11 18:04:29,773 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample