./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml', '-i', '../sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-1.i', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/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) )\nCHECK( init(main()), LTL(G valid-deref) )\nCHECK( init(main()), LTL(G valid-memtrack) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', '143a30a80a62e6cad7506820b1f96be933051e37975b620c656decb608437802'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-1.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 143a30a80a62e6cad7506820b1f96be933051e37975b620c656decb608437802 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 16:33:42,085 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 16:33:42,167 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-07 16:33:42,173 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 16:33:42,174 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 16:33:42,197 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 16:33:42,197 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 16:33:42,197 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 16:33:42,198 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 16:33:42,198 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 16:33:42,198 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 16:33:42,198 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 16:33:42,198 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 16:33:42,198 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 16:33:42,198 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 16:33:42,199 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 16:33:42,199 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 16:33:42,199 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 16:33:42,199 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 16:33:42,199 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 16:33:42,199 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-07 16:33:42,199 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-07 16:33:42,199 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-07 16:33:42,199 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 16:33:42,199 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-07 16:33:42,199 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 16:33:42,200 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 16:33:42,200 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 16:33:42,200 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 16:33:42,200 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 16:33:42,200 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 16:33:42,200 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 16:33:42,200 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 16:33:42,200 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 16:33:42,200 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 16:33:42,200 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 16:33:42,200 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 16:33:42,200 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 16:33:42,201 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 16:33:42,201 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 16:33:42,201 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 16:33:42,201 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 16:33:42,201 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 143a30a80a62e6cad7506820b1f96be933051e37975b620c656decb608437802 [2024-11-07 16:33:42,421 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 16:33:42,439 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 16:33:42,440 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 16:33:42,441 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 16:33:42,441 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 16:33:42,445 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-1.i [2024-11-07 16:33:43,731 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 16:33:43,920 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 16:33:43,921 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-1.i [2024-11-07 16:33:43,939 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4e4a66dd4/5f3571ebff364ccda44f4a2411de2289/FLAG639a78f27 [2024-11-07 16:33:44,280 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4e4a66dd4/5f3571ebff364ccda44f4a2411de2289 [2024-11-07 16:33:44,282 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 16:33:44,283 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 16:33:44,284 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 16:33:44,284 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 16:33:44,287 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 16:33:44,287 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:33:44" (1/1) ... [2024-11-07 16:33:44,288 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@85f828d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:44, skipping insertion in model container [2024-11-07 16:33:44,288 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:33:44" (1/1) ... [2024-11-07 16:33:44,313 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 16:33:44,564 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 16:33:44,598 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 16:33:44,602 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 16:33:44,607 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 16:33:44,621 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) [2024-11-07 16:33:44,622 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@66d69de7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:44, skipping insertion in model container [2024-11-07 16:33:44,622 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 16:33:44,622 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-07 16:33:44,623 INFO L158 Benchmark]: Toolchain (without parser) took 339.83ms. Allocated memory is still 142.6MB. Free memory was 115.9MB in the beginning and 102.0MB in the end (delta: 13.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 16:33:44,623 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 117.4MB. Free memory is still 82.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 16:33:44,624 INFO L158 Benchmark]: CACSL2BoogieTranslator took 338.14ms. Allocated memory is still 142.6MB. Free memory was 115.8MB in the beginning and 102.0MB in the end (delta: 13.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 16:33:44,625 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 117.4MB. Free memory is still 82.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 338.14ms. Allocated memory is still 142.6MB. Free memory was 115.8MB in the beginning and 102.0MB in the end (delta: 13.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 607]: 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/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-1.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 143a30a80a62e6cad7506820b1f96be933051e37975b620c656decb608437802 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 16:33:46,409 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 16:33:46,536 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-07 16:33:46,546 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 16:33:46,546 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 16:33:46,603 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 16:33:46,606 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 16:33:46,606 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 16:33:46,606 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 16:33:46,607 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 16:33:46,607 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 16:33:46,607 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 16:33:46,607 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 16:33:46,607 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 16:33:46,607 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 16:33:46,607 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 16:33:46,607 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 16:33:46,607 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 16:33:46,607 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 16:33:46,607 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 16:33:46,607 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-07 16:33:46,608 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-07 16:33:46,608 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-07 16:33:46,608 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 16:33:46,608 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-07 16:33:46,608 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-07 16:33:46,608 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 16:33:46,608 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-07 16:33:46,608 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 16:33:46,608 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 16:33:46,608 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 16:33:46,608 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 16:33:46,608 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 16:33:46,608 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 16:33:46,608 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 16:33:46,608 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 16:33:46,609 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 16:33:46,609 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 16:33:46,609 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-07 16:33:46,609 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-07 16:33:46,609 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 16:33:46,609 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 16:33:46,609 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 16:33:46,615 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 16:33:46,616 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 143a30a80a62e6cad7506820b1f96be933051e37975b620c656decb608437802 [2024-11-07 16:33:46,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 16:33:46,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 16:33:46,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 16:33:46,848 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 16:33:46,848 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 16:33:46,849 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-1.i [2024-11-07 16:33:48,053 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 16:33:48,359 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 16:33:48,360 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-1.i [2024-11-07 16:33:48,377 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/dd7996ba0/886feafb5818406ebb1e51897154e597/FLAGf72c11ed2 [2024-11-07 16:33:48,654 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/dd7996ba0/886feafb5818406ebb1e51897154e597 [2024-11-07 16:33:48,656 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 16:33:48,657 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 16:33:48,658 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 16:33:48,659 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 16:33:48,662 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 16:33:48,662 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:33:48" (1/1) ... [2024-11-07 16:33:48,663 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@131f7bfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:48, skipping insertion in model container [2024-11-07 16:33:48,663 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:33:48" (1/1) ... [2024-11-07 16:33:48,690 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 16:33:48,866 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 16:33:48,897 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 16:33:48,900 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 16:33:48,902 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 16:33:48,918 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-07 16:33:48,928 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 16:33:48,951 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 16:33:48,963 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 16:33:48,965 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 16:33:48,966 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 16:33:48,970 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 16:33:49,013 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 16:33:49,042 INFO L204 MainTranslator]: Completed translation [2024-11-07 16:33:49,042 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:49 WrapperNode [2024-11-07 16:33:49,043 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 16:33:49,044 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 16:33:49,044 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 16:33:49,044 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 16:33:49,054 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:49" (1/1) ... [2024-11-07 16:33:49,071 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:49" (1/1) ... [2024-11-07 16:33:49,094 INFO L138 Inliner]: procedures = 167, calls = 78, calls flagged for inlining = 23, calls inlined = 5, statements flattened = 85 [2024-11-07 16:33:49,097 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 16:33:49,097 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 16:33:49,097 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 16:33:49,097 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 16:33:49,103 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:49" (1/1) ... [2024-11-07 16:33:49,104 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:49" (1/1) ... [2024-11-07 16:33:49,106 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:49" (1/1) ... [2024-11-07 16:33:49,126 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [2, 4]. 67 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2024-11-07 16:33:49,126 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:49" (1/1) ... [2024-11-07 16:33:49,126 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:49" (1/1) ... [2024-11-07 16:33:49,134 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:49" (1/1) ... [2024-11-07 16:33:49,140 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:49" (1/1) ... [2024-11-07 16:33:49,142 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:49" (1/1) ... [2024-11-07 16:33:49,144 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:49" (1/1) ... [2024-11-07 16:33:49,146 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 16:33:49,147 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 16:33:49,150 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 16:33:49,150 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 16:33:49,152 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:49" (1/1) ... [2024-11-07 16:33:49,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 16:33:49,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 16:33:49,178 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 16:33:49,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 16:33:49,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-07 16:33:49,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-07 16:33:49,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-07 16:33:49,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 16:33:49,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-07 16:33:49,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-07 16:33:49,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-07 16:33:49,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-07 16:33:49,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 16:33:49,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-07 16:33:49,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-07 16:33:49,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 16:33:49,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 16:33:49,321 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 16:33:49,322 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 16:33:49,546 INFO L? ?]: Removed 52 outVars from TransFormulas that were not future-live. [2024-11-07 16:33:49,550 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 16:33:49,559 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 16:33:49,564 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-07 16:33:49,565 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:33:49 BoogieIcfgContainer [2024-11-07 16:33:49,566 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 16:33:49,571 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 16:33:49,571 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 16:33:49,579 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 16:33:49,579 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:33:48" (1/3) ... [2024-11-07 16:33:49,580 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29135921 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:33:49, skipping insertion in model container [2024-11-07 16:33:49,580 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:33:49" (2/3) ... [2024-11-07 16:33:49,580 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29135921 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:33:49, skipping insertion in model container [2024-11-07 16:33:49,580 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:33:49" (3/3) ... [2024-11-07 16:33:49,581 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test17_2-1.i [2024-11-07 16:33:49,595 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 16:33:49,596 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-11-07 16:33:49,617 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 16:33:49,624 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;@50646d0c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 16:33:49,624 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-07 16:33:49,627 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 38 states have (on average 1.763157894736842) internal successors, (67), 56 states have internal predecessors, (67), 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) [2024-11-07 16:33:49,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-07 16:33:49,631 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:33:49,631 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:33:49,632 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2024-11-07 16:33:49,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:33:49,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1738627285, now seen corresponding path program 1 times [2024-11-07 16:33:49,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 16:33:49,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [968883962] [2024-11-07 16:33:49,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:33:49,642 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 [2024-11-07 16:33:49,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 16:33:49,645 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-11-07 16:33:49,646 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-11-07 16:33:49,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:33:49,717 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 16:33:49,720 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 16:33:49,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:33:49,773 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 16:33:49,774 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 16:33:49,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [968883962] [2024-11-07 16:33:49,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [968883962] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 16:33:49,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 16:33:49,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 16:33:49,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432729305] [2024-11-07 16:33:49,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 16:33:49,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 16:33:49,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 16:33:49,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 16:33:49,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 16:33:49,797 INFO L87 Difference]: Start difference. First operand has 60 states, 38 states have (on average 1.763157894736842) internal successors, (67), 56 states have internal predecessors, (67), 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 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 16:33:49,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:33:49,873 INFO L93 Difference]: Finished difference Result 106 states and 125 transitions. [2024-11-07 16:33:49,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 16:33:49,874 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-11-07 16:33:49,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:33:49,878 INFO L225 Difference]: With dead ends: 106 [2024-11-07 16:33:49,878 INFO L226 Difference]: Without dead ends: 104 [2024-11-07 16:33:49,879 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 16:33:49,880 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 46 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 217 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 [2024-11-07 16:33:49,881 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 217 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 16:33:49,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-07 16:33:49,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 62. [2024-11-07 16:33:49,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 40 states have (on average 1.6) internal successors, (64), 57 states have internal predecessors, (64), 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) [2024-11-07 16:33:49,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 70 transitions. [2024-11-07 16:33:49,903 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 70 transitions. Word has length 11 [2024-11-07 16:33:49,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:33:49,903 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 70 transitions. [2024-11-07 16:33:49,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 16:33:49,903 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 70 transitions. [2024-11-07 16:33:49,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-07 16:33:49,904 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:33:49,904 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:33:49,907 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-11-07 16:33:50,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 16:33:50,106 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2024-11-07 16:33:50,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:33:50,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1738628211, now seen corresponding path program 1 times [2024-11-07 16:33:50,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 16:33:50,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1945714530] [2024-11-07 16:33:50,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:33:50,107 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 [2024-11-07 16:33:50,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 16:33:50,110 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-11-07 16:33:50,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-11-07 16:33:50,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:33:50,146 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 16:33:50,148 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 16:33:50,165 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 [2024-11-07 16:33:50,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:33:50,190 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 16:33:50,190 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 16:33:50,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1945714530] [2024-11-07 16:33:50,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1945714530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 16:33:50,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 16:33:50,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 16:33:50,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695177821] [2024-11-07 16:33:50,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 16:33:50,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 16:33:50,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 16:33:50,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 16:33:50,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 16:33:50,191 INFO L87 Difference]: Start difference. First operand 62 states and 70 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 16:33:50,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:33:50,296 INFO L93 Difference]: Finished difference Result 95 states and 111 transitions. [2024-11-07 16:33:50,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 16:33:50,296 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-11-07 16:33:50,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:33:50,297 INFO L225 Difference]: With dead ends: 95 [2024-11-07 16:33:50,297 INFO L226 Difference]: Without dead ends: 95 [2024-11-07 16:33:50,297 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 16:33:50,298 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 33 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 16:33:50,298 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 155 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 16:33:50,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-07 16:33:50,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 75. [2024-11-07 16:33:50,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 53 states have (on average 1.5849056603773586) internal successors, (84), 70 states have internal predecessors, (84), 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) [2024-11-07 16:33:50,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 90 transitions. [2024-11-07 16:33:50,305 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 90 transitions. Word has length 11 [2024-11-07 16:33:50,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:33:50,306 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 90 transitions. [2024-11-07 16:33:50,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 16:33:50,306 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 90 transitions. [2024-11-07 16:33:50,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-07 16:33:50,306 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:33:50,306 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:33:50,311 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-07 16:33:50,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 16:33:50,508 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2024-11-07 16:33:50,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:33:50,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1738628210, now seen corresponding path program 1 times [2024-11-07 16:33:50,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 16:33:50,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1755550592] [2024-11-07 16:33:50,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:33:50,511 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 [2024-11-07 16:33:50,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 16:33:50,513 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-11-07 16:33:50,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-11-07 16:33:50,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:33:50,552 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-07 16:33:50,553 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 16:33:50,579 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 [2024-11-07 16:33:50,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:33:50,689 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 16:33:50,689 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 16:33:50,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1755550592] [2024-11-07 16:33:50,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1755550592] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 16:33:50,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 16:33:50,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 16:33:50,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744003381] [2024-11-07 16:33:50,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 16:33:50,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 16:33:50,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 16:33:50,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 16:33:50,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-07 16:33:50,691 INFO L87 Difference]: Start difference. First operand 75 states and 90 transitions. Second operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 16:33:50,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:33:50,914 INFO L93 Difference]: Finished difference Result 118 states and 142 transitions. [2024-11-07 16:33:50,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 16:33:50,914 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-11-07 16:33:50,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:33:50,915 INFO L225 Difference]: With dead ends: 118 [2024-11-07 16:33:50,915 INFO L226 Difference]: Without dead ends: 118 [2024-11-07 16:33:50,916 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-07 16:33:50,916 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 78 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 16:33:50,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 395 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 16:33:50,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-07 16:33:50,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 105. [2024-11-07 16:33:50,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 83 states have (on average 1.5783132530120483) internal successors, (131), 100 states have internal predecessors, (131), 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) [2024-11-07 16:33:50,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 137 transitions. [2024-11-07 16:33:50,921 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 137 transitions. Word has length 11 [2024-11-07 16:33:50,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:33:50,922 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 137 transitions. [2024-11-07 16:33:50,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 16:33:50,922 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 137 transitions. [2024-11-07 16:33:50,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-07 16:33:50,922 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:33:50,922 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:33:50,925 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-11-07 16:33:51,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 16:33:51,125 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2024-11-07 16:33:51,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:33:51,125 INFO L85 PathProgramCache]: Analyzing trace with hash -851123604, now seen corresponding path program 1 times [2024-11-07 16:33:51,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 16:33:51,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [27147038] [2024-11-07 16:33:51,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:33:51,126 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 [2024-11-07 16:33:51,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 16:33:51,127 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-11-07 16:33:51,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-11-07 16:33:51,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:33:51,157 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 16:33:51,157 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 16:33:51,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:33:51,174 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 16:33:51,174 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 16:33:51,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [27147038] [2024-11-07 16:33:51,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [27147038] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 16:33:51,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 16:33:51,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 16:33:51,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153839237] [2024-11-07 16:33:51,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 16:33:51,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 16:33:51,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 16:33:51,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 16:33:51,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 16:33:51,175 INFO L87 Difference]: Start difference. First operand 105 states and 137 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 16:33:51,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:33:51,243 INFO L93 Difference]: Finished difference Result 148 states and 185 transitions. [2024-11-07 16:33:51,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 16:33:51,243 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-11-07 16:33:51,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:33:51,244 INFO L225 Difference]: With dead ends: 148 [2024-11-07 16:33:51,244 INFO L226 Difference]: Without dead ends: 146 [2024-11-07 16:33:51,245 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 16:33:51,245 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 46 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 16:33:51,245 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 162 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 16:33:51,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-07 16:33:51,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 105. [2024-11-07 16:33:51,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 83 states have (on average 1.5662650602409638) internal successors, (130), 100 states have internal predecessors, (130), 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) [2024-11-07 16:33:51,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 136 transitions. [2024-11-07 16:33:51,251 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 136 transitions. Word has length 11 [2024-11-07 16:33:51,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:33:51,251 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 136 transitions. [2024-11-07 16:33:51,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 16:33:51,251 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 136 transitions. [2024-11-07 16:33:51,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-07 16:33:51,251 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:33:51,251 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:33:51,254 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-07 16:33:51,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 16:33:51,453 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2024-11-07 16:33:51,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:33:51,453 INFO L85 PathProgramCache]: Analyzing trace with hash -851124530, now seen corresponding path program 1 times [2024-11-07 16:33:51,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 16:33:51,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1778401200] [2024-11-07 16:33:51,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:33:51,453 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 [2024-11-07 16:33:51,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 16:33:51,456 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-11-07 16:33:51,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-11-07 16:33:51,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:33:51,507 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-07 16:33:51,508 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 16:33:51,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:33:51,554 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 16:33:51,554 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 16:33:51,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1778401200] [2024-11-07 16:33:51,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1778401200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 16:33:51,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 16:33:51,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 16:33:51,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133082604] [2024-11-07 16:33:51,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 16:33:51,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 16:33:51,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 16:33:51,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 16:33:51,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 16:33:51,555 INFO L87 Difference]: Start difference. First operand 105 states and 136 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 16:33:51,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:33:51,580 INFO L93 Difference]: Finished difference Result 89 states and 111 transitions. [2024-11-07 16:33:51,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 16:33:51,580 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-11-07 16:33:51,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:33:51,581 INFO L225 Difference]: With dead ends: 89 [2024-11-07 16:33:51,581 INFO L226 Difference]: Without dead ends: 87 [2024-11-07 16:33:51,581 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 16:33:51,582 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 16:33:51,582 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 243 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 16:33:51,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-07 16:33:51,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-11-07 16:33:51,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 66 states have (on average 1.5757575757575757) internal successors, (104), 83 states have internal predecessors, (104), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-07 16:33:51,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 109 transitions. [2024-11-07 16:33:51,586 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 109 transitions. Word has length 11 [2024-11-07 16:33:51,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:33:51,586 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 109 transitions. [2024-11-07 16:33:51,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 16:33:51,586 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 109 transitions. [2024-11-07 16:33:51,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-07 16:33:51,586 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:33:51,586 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:33:51,589 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-11-07 16:33:51,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 16:33:51,789 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2024-11-07 16:33:51,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:33:51,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1832553715, now seen corresponding path program 1 times [2024-11-07 16:33:51,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 16:33:51,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1532382343] [2024-11-07 16:33:51,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:33:51,790 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 [2024-11-07 16:33:51,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 16:33:51,793 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-11-07 16:33:51,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-07 16:33:51,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:33:51,846 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-07 16:33:51,848 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 16:33:51,870 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 [2024-11-07 16:33:52,001 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:33:52,001 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 16:33:52,443 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:33:52,444 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 16:33:52,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1532382343] [2024-11-07 16:33:52,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1532382343] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 16:33:52,444 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-07 16:33:52,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-11-07 16:33:52,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542378521] [2024-11-07 16:33:52,444 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-07 16:33:52,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-07 16:33:52,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 16:33:52,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-07 16:33:52,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-11-07 16:33:52,445 INFO L87 Difference]: Start difference. First operand 87 states and 109 transitions. Second operand has 16 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 14 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 16:33:53,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:33:53,208 INFO L93 Difference]: Finished difference Result 109 states and 126 transitions. [2024-11-07 16:33:53,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 16:33:53,209 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 14 states have internal predecessors, (23), 2 states have call successors, (2), 1 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 14 [2024-11-07 16:33:53,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:33:53,209 INFO L225 Difference]: With dead ends: 109 [2024-11-07 16:33:53,209 INFO L226 Difference]: Without dead ends: 109 [2024-11-07 16:33:53,210 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=106, Invalid=446, Unknown=0, NotChecked=0, Total=552 [2024-11-07 16:33:53,210 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 173 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 16:33:53,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 462 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 16:33:53,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-07 16:33:53,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 96. [2024-11-07 16:33:53,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 75 states have (on average 1.5333333333333334) internal successors, (115), 92 states have internal predecessors, (115), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-07 16:33:53,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 120 transitions. [2024-11-07 16:33:53,215 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 120 transitions. Word has length 14 [2024-11-07 16:33:53,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:33:53,216 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 120 transitions. [2024-11-07 16:33:53,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 14 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 16:33:53,216 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 120 transitions. [2024-11-07 16:33:53,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-07 16:33:53,216 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:33:53,216 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:33:53,220 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2024-11-07 16:33:53,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 16:33:53,417 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2024-11-07 16:33:53,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:33:53,418 INFO L85 PathProgramCache]: Analyzing trace with hash -68910454, now seen corresponding path program 1 times [2024-11-07 16:33:53,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 16:33:53,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1835198947] [2024-11-07 16:33:53,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:33:53,419 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 [2024-11-07 16:33:53,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 16:33:53,421 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-11-07 16:33:53,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-11-07 16:33:53,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:33:53,492 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 16:33:53,493 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 16:33:53,556 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:33:53,556 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 16:33:53,619 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:33:53,620 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 16:33:53,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1835198947] [2024-11-07 16:33:53,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1835198947] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 16:33:53,620 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-07 16:33:53,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-07 16:33:53,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460974605] [2024-11-07 16:33:53,620 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-07 16:33:53,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 16:33:53,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 16:33:53,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 16:33:53,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-07 16:33:53,621 INFO L87 Difference]: Start difference. First operand 96 states and 120 transitions. Second operand has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 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) [2024-11-07 16:33:53,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:33:53,746 INFO L93 Difference]: Finished difference Result 101 states and 124 transitions. [2024-11-07 16:33:53,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 16:33:53,747 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 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 21 [2024-11-07 16:33:53,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:33:53,747 INFO L225 Difference]: With dead ends: 101 [2024-11-07 16:33:53,747 INFO L226 Difference]: Without dead ends: 101 [2024-11-07 16:33:53,748 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2024-11-07 16:33:53,748 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 84 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 16:33:53,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 287 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 16:33:53,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-07 16:33:53,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-11-07 16:33:53,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 80 states have (on average 1.4875) internal successors, (119), 97 states have internal predecessors, (119), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-07 16:33:53,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 124 transitions. [2024-11-07 16:33:53,758 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 124 transitions. Word has length 21 [2024-11-07 16:33:53,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:33:53,758 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 124 transitions. [2024-11-07 16:33:53,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 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) [2024-11-07 16:33:53,758 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 124 transitions. [2024-11-07 16:33:53,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-07 16:33:53,759 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:33:53,759 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:33:53,764 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-11-07 16:33:53,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 16:33:53,960 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2024-11-07 16:33:53,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:33:53,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1435873458, now seen corresponding path program 2 times [2024-11-07 16:33:53,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 16:33:53,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2006483924] [2024-11-07 16:33:53,961 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 16:33:53,961 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 [2024-11-07 16:33:53,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 16:33:53,966 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-11-07 16:33:53,967 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-11-07 16:33:54,028 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 16:33:54,028 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 16:33:54,031 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-07 16:33:54,033 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 16:33:54,052 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 [2024-11-07 16:33:54,318 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:33:54,318 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 16:33:55,155 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:33:55,155 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 16:33:55,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2006483924] [2024-11-07 16:33:55,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2006483924] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 16:33:55,155 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-07 16:33:55,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2024-11-07 16:33:55,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164983854] [2024-11-07 16:33:55,156 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-07 16:33:55,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-07 16:33:55,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 16:33:55,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-07 16:33:55,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=439, Unknown=0, NotChecked=0, Total=552 [2024-11-07 16:33:55,157 INFO L87 Difference]: Start difference. First operand 101 states and 124 transitions. Second operand has 24 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 22 states have internal predecessors, (41), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 16:33:56,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:33:56,739 INFO L93 Difference]: Finished difference Result 127 states and 146 transitions. [2024-11-07 16:33:56,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-07 16:33:56,740 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 22 states have internal predecessors, (41), 2 states have call successors, (2), 1 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 23 [2024-11-07 16:33:56,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:33:56,742 INFO L225 Difference]: With dead ends: 127 [2024-11-07 16:33:56,742 INFO L226 Difference]: Without dead ends: 127 [2024-11-07 16:33:56,743 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=282, Invalid=908, Unknown=0, NotChecked=0, Total=1190 [2024-11-07 16:33:56,743 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 178 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-07 16:33:56,743 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 585 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-07 16:33:56,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-07 16:33:56,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 114. [2024-11-07 16:33:56,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 93 states have (on average 1.4516129032258065) internal successors, (135), 110 states have internal predecessors, (135), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-07 16:33:56,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 140 transitions. [2024-11-07 16:33:56,749 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 140 transitions. Word has length 23 [2024-11-07 16:33:56,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:33:56,749 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 140 transitions. [2024-11-07 16:33:56,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 22 states have internal predecessors, (41), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 16:33:56,753 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 140 transitions. [2024-11-07 16:33:56,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-07 16:33:56,754 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:33:56,754 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:33:56,757 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-11-07 16:33:56,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 16:33:56,954 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2024-11-07 16:33:56,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:33:56,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1424196022, now seen corresponding path program 2 times [2024-11-07 16:33:56,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 16:33:56,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1350670008] [2024-11-07 16:33:56,955 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 16:33:56,955 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 [2024-11-07 16:33:56,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 16:33:56,957 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-11-07 16:33:56,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-11-07 16:33:57,011 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-07 16:33:57,011 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 16:33:57,013 INFO L255 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-07 16:33:57,015 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 16:33:57,021 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 [2024-11-07 16:33:57,123 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-07 16:33:57,123 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 16:33:57,123 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 16:33:57,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1350670008] [2024-11-07 16:33:57,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1350670008] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 16:33:57,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 16:33:57,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 16:33:57,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988464798] [2024-11-07 16:33:57,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 16:33:57,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 16:33:57,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 16:33:57,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 16:33:57,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 16:33:57,124 INFO L87 Difference]: Start difference. First operand 114 states and 140 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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) [2024-11-07 16:33:57,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:33:57,445 INFO L93 Difference]: Finished difference Result 137 states and 167 transitions. [2024-11-07 16:33:57,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 16:33:57,445 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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 33 [2024-11-07 16:33:57,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:33:57,446 INFO L225 Difference]: With dead ends: 137 [2024-11-07 16:33:57,446 INFO L226 Difference]: Without dead ends: 137 [2024-11-07 16:33:57,446 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-07 16:33:57,446 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 46 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 16:33:57,446 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 177 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 16:33:57,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-07 16:33:57,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 118. [2024-11-07 16:33:57,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 97 states have (on average 1.4639175257731958) internal successors, (142), 114 states have internal predecessors, (142), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-07 16:33:57,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 147 transitions. [2024-11-07 16:33:57,450 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 147 transitions. Word has length 33 [2024-11-07 16:33:57,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:33:57,451 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 147 transitions. [2024-11-07 16:33:57,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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) [2024-11-07 16:33:57,451 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 147 transitions. [2024-11-07 16:33:57,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-07 16:33:57,451 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:33:57,451 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:33:57,456 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-11-07 16:33:57,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 16:33:57,654 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2024-11-07 16:33:57,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:33:57,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1424196021, now seen corresponding path program 1 times [2024-11-07 16:33:57,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 16:33:57,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [841729725] [2024-11-07 16:33:57,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:33:57,655 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 [2024-11-07 16:33:57,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 16:33:57,658 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-11-07 16:33:57,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-11-07 16:33:57,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:33:57,727 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-07 16:33:57,729 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 16:33:57,828 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:33:57,828 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 16:33:57,995 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:33:57,995 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 16:33:57,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [841729725] [2024-11-07 16:33:57,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [841729725] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 16:33:57,995 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-07 16:33:57,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2024-11-07 16:33:57,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106410485] [2024-11-07 16:33:57,995 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-07 16:33:57,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-07 16:33:57,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 16:33:57,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-07 16:33:57,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2024-11-07 16:33:57,997 INFO L87 Difference]: Start difference. First operand 118 states and 147 transitions. Second operand has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 18 states have internal predecessors, (53), 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) [2024-11-07 16:33:58,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:33:58,213 INFO L93 Difference]: Finished difference Result 118 states and 143 transitions. [2024-11-07 16:33:58,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-07 16:33:58,214 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 18 states have internal predecessors, (53), 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 33 [2024-11-07 16:33:58,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:33:58,214 INFO L225 Difference]: With dead ends: 118 [2024-11-07 16:33:58,214 INFO L226 Difference]: Without dead ends: 118 [2024-11-07 16:33:58,215 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=133, Invalid=287, Unknown=0, NotChecked=0, Total=420 [2024-11-07 16:33:58,215 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 49 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 16:33:58,215 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 467 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 16:33:58,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-07 16:33:58,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2024-11-07 16:33:58,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 97 states have (on average 1.422680412371134) internal successors, (138), 114 states have internal predecessors, (138), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-07 16:33:58,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 143 transitions. [2024-11-07 16:33:58,218 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 143 transitions. Word has length 33 [2024-11-07 16:33:58,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:33:58,218 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 143 transitions. [2024-11-07 16:33:58,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 18 states have internal predecessors, (53), 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) [2024-11-07 16:33:58,218 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 143 transitions. [2024-11-07 16:33:58,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-07 16:33:58,219 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:33:58,219 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:33:58,225 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-11-07 16:33:58,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 16:33:58,422 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2024-11-07 16:33:58,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:33:58,423 INFO L85 PathProgramCache]: Analyzing trace with hash 2030306542, now seen corresponding path program 3 times [2024-11-07 16:33:58,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 16:33:58,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1811092217] [2024-11-07 16:33:58,423 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 16:33:58,423 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 [2024-11-07 16:33:58,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 16:33:58,426 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-11-07 16:33:58,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-07 16:33:58,562 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-07 16:33:58,563 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 16:33:58,566 INFO L255 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-07 16:33:58,569 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 16:33:58,592 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 [2024-11-07 16:33:59,270 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 10 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:33:59,270 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 16:34:02,115 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:34:02,116 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 16:34:02,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1811092217] [2024-11-07 16:34:02,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1811092217] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 16:34:02,116 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-07 16:34:02,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19] total 36 [2024-11-07 16:34:02,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459130292] [2024-11-07 16:34:02,116 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-07 16:34:02,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-07 16:34:02,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 16:34:02,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-07 16:34:02,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=979, Unknown=0, NotChecked=0, Total=1260 [2024-11-07 16:34:02,117 INFO L87 Difference]: Start difference. First operand 118 states and 143 transitions. Second operand has 36 states, 34 states have (on average 2.264705882352941) internal successors, (77), 34 states have internal predecessors, (77), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 16:34:04,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:34:04,084 INFO L93 Difference]: Finished difference Result 124 states and 146 transitions. [2024-11-07 16:34:04,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-07 16:34:04,085 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 34 states have (on average 2.264705882352941) internal successors, (77), 34 states have internal predecessors, (77), 2 states have call successors, (2), 1 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 41 [2024-11-07 16:34:04,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:34:04,087 INFO L225 Difference]: With dead ends: 124 [2024-11-07 16:34:04,087 INFO L226 Difference]: Without dead ends: 124 [2024-11-07 16:34:04,087 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=291, Invalid=1115, Unknown=0, NotChecked=0, Total=1406 [2024-11-07 16:34:04,088 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 66 mSDsluCounter, 708 mSDsCounter, 0 mSdLazyCounter, 887 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-07 16:34:04,088 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 757 Invalid, 891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 887 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-07 16:34:04,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-11-07 16:34:04,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 116. [2024-11-07 16:34:04,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 96 states have (on average 1.40625) internal successors, (135), 112 states have internal predecessors, (135), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-07 16:34:04,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 140 transitions. [2024-11-07 16:34:04,091 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 140 transitions. Word has length 41 [2024-11-07 16:34:04,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:34:04,092 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 140 transitions. [2024-11-07 16:34:04,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 34 states have (on average 2.264705882352941) internal successors, (77), 34 states have internal predecessors, (77), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 16:34:04,092 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 140 transitions. [2024-11-07 16:34:04,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-07 16:34:04,095 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:34:04,095 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:34:04,105 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2024-11-07 16:34:04,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 16:34:04,296 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2024-11-07 16:34:04,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:34:04,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1720133109, now seen corresponding path program 2 times [2024-11-07 16:34:04,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 16:34:04,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [672894665] [2024-11-07 16:34:04,297 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 16:34:04,297 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 [2024-11-07 16:34:04,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 16:34:04,299 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-11-07 16:34:04,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-07 16:34:04,347 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-07 16:34:04,347 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 16:34:04,349 INFO L255 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 16:34:04,351 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 16:34:04,393 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-07 16:34:04,393 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 16:34:04,394 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 16:34:04,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [672894665] [2024-11-07 16:34:04,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [672894665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 16:34:04,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 16:34:04,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 16:34:04,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788457022] [2024-11-07 16:34:04,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 16:34:04,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 16:34:04,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 16:34:04,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 16:34:04,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 16:34:04,395 INFO L87 Difference]: Start difference. First operand 116 states and 140 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2024-11-07 16:34:04,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:34:04,427 INFO L93 Difference]: Finished difference Result 97 states and 108 transitions. [2024-11-07 16:34:04,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 16:34:04,428 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 45 [2024-11-07 16:34:04,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:34:04,429 INFO L225 Difference]: With dead ends: 97 [2024-11-07 16:34:04,429 INFO L226 Difference]: Without dead ends: 97 [2024-11-07 16:34:04,429 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 16:34:04,429 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 39 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 16:34:04,429 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 132 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 16:34:04,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-11-07 16:34:04,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 90. [2024-11-07 16:34:04,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 70 states have (on average 1.3142857142857143) internal successors, (92), 86 states have internal predecessors, (92), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-07 16:34:04,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 97 transitions. [2024-11-07 16:34:04,432 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 97 transitions. Word has length 45 [2024-11-07 16:34:04,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:34:04,432 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 97 transitions. [2024-11-07 16:34:04,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2024-11-07 16:34:04,432 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 97 transitions. [2024-11-07 16:34:04,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-07 16:34:04,432 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:34:04,432 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:34:04,435 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2024-11-07 16:34:04,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 16:34:04,635 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2024-11-07 16:34:04,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:34:04,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1217377455, now seen corresponding path program 1 times [2024-11-07 16:34:04,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 16:34:04,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1899765315] [2024-11-07 16:34:04,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:34:04,636 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 [2024-11-07 16:34:04,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 16:34:04,639 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-11-07 16:34:04,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-11-07 16:34:04,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:34:04,766 INFO L255 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-07 16:34:04,770 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 16:34:04,773 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 [2024-11-07 16:34:04,836 WARN L873 $PredicateComparison]: unable to prove that (exists ((|ldv_malloc_#res.base| (_ BitVec 32))) (= |c_#valid| (store |c_old(#valid)| |ldv_malloc_#res.base| (_ bv1 1)))) is different from true [2024-11-07 16:34:04,856 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-11-07 16:34:04,857 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2024-11-07 16:34:04,867 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 2 not checked. [2024-11-07 16:34:04,869 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 16:34:05,001 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-07 16:34:05,002 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 16:34:05,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1899765315] [2024-11-07 16:34:05,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1899765315] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 16:34:05,002 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-07 16:34:05,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 8 [2024-11-07 16:34:05,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376073932] [2024-11-07 16:34:05,002 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-07 16:34:05,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 16:34:05,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 16:34:05,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 16:34:05,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=43, Unknown=1, NotChecked=12, Total=72 [2024-11-07 16:34:05,003 INFO L87 Difference]: Start difference. First operand 90 states and 97 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 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) [2024-11-07 16:34:05,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:34:05,136 INFO L93 Difference]: Finished difference Result 115 states and 125 transitions. [2024-11-07 16:34:05,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 16:34:05,137 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 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 50 [2024-11-07 16:34:05,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:34:05,138 INFO L225 Difference]: With dead ends: 115 [2024-11-07 16:34:05,138 INFO L226 Difference]: Without dead ends: 115 [2024-11-07 16:34:05,138 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 88 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=69, Unknown=1, NotChecked=16, Total=110 [2024-11-07 16:34:05,138 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 57 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 90 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 16:34:05,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 189 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 146 Invalid, 0 Unknown, 90 Unchecked, 0.1s Time] [2024-11-07 16:34:05,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-07 16:34:05,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 95. [2024-11-07 16:34:05,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 76 states have (on average 1.3157894736842106) internal successors, (100), 91 states have internal predecessors, (100), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-07 16:34:05,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 105 transitions. [2024-11-07 16:34:05,141 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 105 transitions. Word has length 50 [2024-11-07 16:34:05,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:34:05,141 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 105 transitions. [2024-11-07 16:34:05,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 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) [2024-11-07 16:34:05,141 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 105 transitions. [2024-11-07 16:34:05,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-07 16:34:05,141 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:34:05,141 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:34:05,146 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-11-07 16:34:05,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 16:34:05,345 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2024-11-07 16:34:05,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:34:05,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1217377454, now seen corresponding path program 1 times [2024-11-07 16:34:05,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 16:34:05,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [698016430] [2024-11-07 16:34:05,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:34:05,346 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 [2024-11-07 16:34:05,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 16:34:05,349 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-11-07 16:34:05,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-11-07 16:34:05,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:34:05,465 INFO L255 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-07 16:34:05,467 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 16:34:05,482 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 [2024-11-07 16:34:05,489 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 [2024-11-07 16:34:05,738 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 [2024-11-07 16:34:05,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-07 16:34:05,754 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 [2024-11-07 16:34:05,762 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-07 16:34:05,762 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 [2024-11-07 16:34:05,794 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 145 trivial. 2 not checked. [2024-11-07 16:34:05,794 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 16:34:05,955 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 16:34:05,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [698016430] [2024-11-07 16:34:05,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [698016430] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 16:34:05,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1689017337] [2024-11-07 16:34:05,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:34:05,956 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-07 16:34:05,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-07 16:34:05,975 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-07 16:34:05,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2024-11-07 16:34:06,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:34:06,220 INFO L255 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-07 16:34:06,221 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 16:34:06,235 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 [2024-11-07 16:34:06,239 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 [2024-11-07 16:34:06,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-07 16:34:06,452 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 [2024-11-07 16:34:06,459 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-07 16:34:06,460 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 [2024-11-07 16:34:06,470 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 145 trivial. 2 not checked. [2024-11-07 16:34:06,470 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 16:34:06,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1689017337] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 16:34:06,596 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-07 16:34:06,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2024-11-07 16:34:06,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592929238] [2024-11-07 16:34:06,597 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-07 16:34:06,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-07 16:34:06,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 16:34:06,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-07 16:34:06,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=108, Unknown=1, NotChecked=20, Total=156 [2024-11-07 16:34:06,597 INFO L87 Difference]: Start difference. First operand 95 states and 105 transitions. Second operand has 11 states, 9 states have (on average 2.111111111111111) internal successors, (19), 10 states have internal predecessors, (19), 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) [2024-11-07 16:34:06,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:34:06,980 INFO L93 Difference]: Finished difference Result 137 states and 157 transitions. [2024-11-07 16:34:06,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 16:34:06,980 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 2.111111111111111) internal successors, (19), 10 states have internal predecessors, (19), 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 50 [2024-11-07 16:34:06,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:34:06,981 INFO L225 Difference]: With dead ends: 137 [2024-11-07 16:34:06,981 INFO L226 Difference]: Without dead ends: 137 [2024-11-07 16:34:06,982 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 94 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=279, Unknown=1, NotChecked=34, Total=380 [2024-11-07 16:34:06,982 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 83 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 114 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 16:34:06,982 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 428 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 339 Invalid, 0 Unknown, 114 Unchecked, 0.3s Time] [2024-11-07 16:34:06,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-07 16:34:06,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 115. [2024-11-07 16:34:06,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 94 states have (on average 1.3297872340425532) internal successors, (125), 108 states have internal predecessors, (125), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-07 16:34:06,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 136 transitions. [2024-11-07 16:34:06,985 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 136 transitions. Word has length 50 [2024-11-07 16:34:06,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:34:06,985 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 136 transitions. [2024-11-07 16:34:06,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 2.111111111111111) internal successors, (19), 10 states have internal predecessors, (19), 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) [2024-11-07 16:34:06,985 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 136 transitions. [2024-11-07 16:34:06,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-07 16:34:06,986 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:34:06,986 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:34:06,990 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2024-11-07 16:34:07,191 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2024-11-07 16:34:07,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,16 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-07 16:34:07,386 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2024-11-07 16:34:07,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:34:07,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1668680547, now seen corresponding path program 1 times [2024-11-07 16:34:07,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 16:34:07,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1673833532] [2024-11-07 16:34:07,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:34:07,387 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 [2024-11-07 16:34:07,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 16:34:07,389 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-11-07 16:34:07,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-11-07 16:34:07,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:34:07,486 INFO L255 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 16:34:07,488 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 16:34:07,502 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2024-11-07 16:34:07,502 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 16:34:07,502 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 16:34:07,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1673833532] [2024-11-07 16:34:07,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1673833532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 16:34:07,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 16:34:07,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 16:34:07,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781434821] [2024-11-07 16:34:07,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 16:34:07,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 16:34:07,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 16:34:07,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 16:34:07,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 16:34:07,504 INFO L87 Difference]: Start difference. First operand 115 states and 136 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2024-11-07 16:34:07,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:34:07,525 INFO L93 Difference]: Finished difference Result 119 states and 139 transitions. [2024-11-07 16:34:07,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 16:34:07,526 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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 52 [2024-11-07 16:34:07,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:34:07,526 INFO L225 Difference]: With dead ends: 119 [2024-11-07 16:34:07,526 INFO L226 Difference]: Without dead ends: 119 [2024-11-07 16:34:07,526 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 16:34:07,527 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 2 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 16:34:07,527 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 225 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 16:34:07,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-07 16:34:07,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 117. [2024-11-07 16:34:07,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 96 states have (on average 1.3125) internal successors, (126), 109 states have internal predecessors, (126), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (7), 6 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-07 16:34:07,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 137 transitions. [2024-11-07 16:34:07,530 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 137 transitions. Word has length 52 [2024-11-07 16:34:07,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:34:07,530 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 137 transitions. [2024-11-07 16:34:07,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2024-11-07 16:34:07,530 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 137 transitions. [2024-11-07 16:34:07,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-07 16:34:07,531 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:34:07,531 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:34:07,535 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2024-11-07 16:34:07,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 16:34:07,731 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2024-11-07 16:34:07,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:34:07,731 INFO L85 PathProgramCache]: Analyzing trace with hash 74129788, now seen corresponding path program 1 times [2024-11-07 16:34:07,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 16:34:07,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [530034451] [2024-11-07 16:34:07,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:34:07,732 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 [2024-11-07 16:34:07,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 16:34:07,734 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-11-07 16:34:07,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-11-07 16:34:07,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:34:07,829 INFO L255 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 16:34:07,830 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 16:34:07,841 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-07 16:34:07,842 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 16:34:07,842 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 16:34:07,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [530034451] [2024-11-07 16:34:07,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [530034451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 16:34:07,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 16:34:07,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 16:34:07,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162165954] [2024-11-07 16:34:07,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 16:34:07,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 16:34:07,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 16:34:07,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 16:34:07,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 16:34:07,842 INFO L87 Difference]: Start difference. First operand 117 states and 137 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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) [2024-11-07 16:34:07,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:34:07,876 INFO L93 Difference]: Finished difference Result 121 states and 141 transitions. [2024-11-07 16:34:07,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 16:34:07,876 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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 52 [2024-11-07 16:34:07,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:34:07,877 INFO L225 Difference]: With dead ends: 121 [2024-11-07 16:34:07,877 INFO L226 Difference]: Without dead ends: 121 [2024-11-07 16:34:07,877 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 16:34:07,877 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 2 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 16:34:07,877 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 161 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 16:34:07,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-11-07 16:34:07,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 119. [2024-11-07 16:34:07,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 98 states have (on average 1.3061224489795917) internal successors, (128), 111 states have internal predecessors, (128), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (7), 6 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-07 16:34:07,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 139 transitions. [2024-11-07 16:34:07,880 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 139 transitions. Word has length 52 [2024-11-07 16:34:07,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:34:07,880 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 139 transitions. [2024-11-07 16:34:07,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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) [2024-11-07 16:34:07,880 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 139 transitions. [2024-11-07 16:34:07,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-07 16:34:07,882 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:34:07,882 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:34:07,887 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2024-11-07 16:34:08,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 16:34:08,083 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2024-11-07 16:34:08,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:34:08,084 INFO L85 PathProgramCache]: Analyzing trace with hash -176607943, now seen corresponding path program 1 times [2024-11-07 16:34:08,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 16:34:08,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [366967648] [2024-11-07 16:34:08,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:34:08,085 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 [2024-11-07 16:34:08,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 16:34:08,086 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-11-07 16:34:08,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-11-07 16:34:08,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:34:08,185 INFO L255 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 16:34:08,188 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 16:34:08,255 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-07 16:34:08,255 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 16:34:08,332 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-07 16:34:08,332 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 16:34:08,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [366967648] [2024-11-07 16:34:08,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [366967648] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 16:34:08,332 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-07 16:34:08,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-07 16:34:08,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092881492] [2024-11-07 16:34:08,332 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-07 16:34:08,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 16:34:08,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 16:34:08,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 16:34:08,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-07 16:34:08,333 INFO L87 Difference]: Start difference. First operand 119 states and 139 transitions. Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-07 16:34:08,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:34:08,448 INFO L93 Difference]: Finished difference Result 157 states and 193 transitions. [2024-11-07 16:34:08,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 16:34:08,448 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 55 [2024-11-07 16:34:08,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:34:08,450 INFO L225 Difference]: With dead ends: 157 [2024-11-07 16:34:08,450 INFO L226 Difference]: Without dead ends: 157 [2024-11-07 16:34:08,450 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2024-11-07 16:34:08,451 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 71 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 16:34:08,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 218 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 16:34:08,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-11-07 16:34:08,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 151. [2024-11-07 16:34:08,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 126 states have (on average 1.3015873015873016) internal successors, (164), 137 states have internal predecessors, (164), 8 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (15), 12 states have call predecessors, (15), 8 states have call successors, (15) [2024-11-07 16:34:08,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 187 transitions. [2024-11-07 16:34:08,457 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 187 transitions. Word has length 55 [2024-11-07 16:34:08,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:34:08,458 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 187 transitions. [2024-11-07 16:34:08,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-07 16:34:08,458 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 187 transitions. [2024-11-07 16:34:08,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-07 16:34:08,458 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:34:08,458 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:34:08,465 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2024-11-07 16:34:08,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 16:34:08,659 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2024-11-07 16:34:08,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:34:08,659 INFO L85 PathProgramCache]: Analyzing trace with hash 785915305, now seen corresponding path program 1 times [2024-11-07 16:34:08,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 16:34:08,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [433372202] [2024-11-07 16:34:08,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:34:08,663 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 [2024-11-07 16:34:08,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 16:34:08,666 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-11-07 16:34:08,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-11-07 16:34:08,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:34:08,768 INFO L255 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-07 16:34:08,770 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 16:34:08,774 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 [2024-11-07 16:34:08,857 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-07 16:34:08,858 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 16:34:08,961 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-07 16:34:08,962 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 16:34:08,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [433372202] [2024-11-07 16:34:08,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [433372202] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 16:34:08,962 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-07 16:34:08,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2024-11-07 16:34:08,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796496321] [2024-11-07 16:34:08,962 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-07 16:34:08,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 16:34:08,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 16:34:08,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 16:34:08,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-07 16:34:08,964 INFO L87 Difference]: Start difference. First operand 151 states and 187 transitions. Second operand has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 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) [2024-11-07 16:34:09,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:34:09,111 INFO L93 Difference]: Finished difference Result 167 states and 201 transitions. [2024-11-07 16:34:09,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 16:34:09,111 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 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 55 [2024-11-07 16:34:09,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:34:09,113 INFO L225 Difference]: With dead ends: 167 [2024-11-07 16:34:09,113 INFO L226 Difference]: Without dead ends: 167 [2024-11-07 16:34:09,113 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-07 16:34:09,113 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 39 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 16:34:09,113 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 238 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 16:34:09,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-11-07 16:34:09,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 152. [2024-11-07 16:34:09,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 127 states have (on average 1.3070866141732282) internal successors, (166), 138 states have internal predecessors, (166), 8 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (15), 12 states have call predecessors, (15), 8 states have call successors, (15) [2024-11-07 16:34:09,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 189 transitions. [2024-11-07 16:34:09,119 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 189 transitions. Word has length 55 [2024-11-07 16:34:09,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:34:09,119 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 189 transitions. [2024-11-07 16:34:09,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 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) [2024-11-07 16:34:09,120 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 189 transitions. [2024-11-07 16:34:09,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-07 16:34:09,120 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:34:09,120 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:34:09,127 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2024-11-07 16:34:09,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 16:34:09,324 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2024-11-07 16:34:09,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:34:09,325 INFO L85 PathProgramCache]: Analyzing trace with hash 785915306, now seen corresponding path program 1 times [2024-11-07 16:34:09,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 16:34:09,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1636326731] [2024-11-07 16:34:09,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:34:09,325 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 [2024-11-07 16:34:09,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 16:34:09,328 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-11-07 16:34:09,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-11-07 16:34:09,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:34:09,447 INFO L255 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-07 16:34:09,449 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 16:34:09,460 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 [2024-11-07 16:34:09,636 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-07 16:34:09,636 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 16:34:10,129 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-07 16:34:10,129 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 16:34:10,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1636326731] [2024-11-07 16:34:10,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1636326731] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 16:34:10,129 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-07 16:34:10,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-11-07 16:34:10,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096851836] [2024-11-07 16:34:10,129 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-07 16:34:10,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-07 16:34:10,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 16:34:10,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-07 16:34:10,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-11-07 16:34:10,130 INFO L87 Difference]: Start difference. First operand 152 states and 189 transitions. Second operand has 16 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 14 states have internal predecessors, (47), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-07 16:34:10,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:34:10,675 INFO L93 Difference]: Finished difference Result 192 states and 235 transitions. [2024-11-07 16:34:10,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 16:34:10,677 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 14 states have internal predecessors, (47), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 55 [2024-11-07 16:34:10,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:34:10,678 INFO L225 Difference]: With dead ends: 192 [2024-11-07 16:34:10,678 INFO L226 Difference]: Without dead ends: 192 [2024-11-07 16:34:10,678 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2024-11-07 16:34:10,679 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 151 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 16:34:10,679 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 483 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 16:34:10,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2024-11-07 16:34:10,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 178. [2024-11-07 16:34:10,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 153 states have (on average 1.3856209150326797) internal successors, (212), 164 states have internal predecessors, (212), 8 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (15), 12 states have call predecessors, (15), 8 states have call successors, (15) [2024-11-07 16:34:10,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 235 transitions. [2024-11-07 16:34:10,684 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 235 transitions. Word has length 55 [2024-11-07 16:34:10,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:34:10,686 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 235 transitions. [2024-11-07 16:34:10,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 14 states have internal predecessors, (47), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-07 16:34:10,686 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 235 transitions. [2024-11-07 16:34:10,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-07 16:34:10,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:34:10,686 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:34:10,690 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2024-11-07 16:34:10,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 16:34:10,887 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2024-11-07 16:34:10,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:34:10,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1406429259, now seen corresponding path program 1 times [2024-11-07 16:34:10,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 16:34:10,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1929697808] [2024-11-07 16:34:10,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:34:10,888 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 [2024-11-07 16:34:10,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 16:34:10,890 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-11-07 16:34:10,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2024-11-07 16:34:11,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:34:11,012 INFO L255 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-07 16:34:11,014 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 16:34:11,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-07 16:34:11,066 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-07 16:34:11,127 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 16:34:11,128 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 30 treesize of output 32 [2024-11-07 16:34:11,199 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 16:34:11,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-11-07 16:34:11,300 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 16:34:11,301 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 56 [2024-11-07 16:34:11,403 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 16:34:11,403 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 57 treesize of output 68 [2024-11-07 16:34:11,536 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 16:34:11,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 66 treesize of output 80 [2024-11-07 16:34:11,700 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 16:34:11,700 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 75 treesize of output 92 [2024-11-07 16:34:11,891 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 16:34:11,892 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 84 treesize of output 104 [2024-11-07 16:34:12,109 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 16:34:12,110 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 93 treesize of output 116 [2024-11-07 16:35:02,801 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 4 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:35:02,801 INFO L311 TraceCheckSpWp]: Computing backward predicates...