./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3012c2825f53c0db53d950c12df6540de859b34b2bef033c36a98846352dedd3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 18:36:26,102 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 18:36:26,192 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-24 18:36:26,199 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 18:36:26,201 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 18:36:26,233 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 18:36:26,233 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 18:36:26,234 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 18:36:26,235 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 18:36:26,236 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 18:36:26,236 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 18:36:26,237 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 18:36:26,237 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 18:36:26,239 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 18:36:26,240 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 18:36:26,240 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 18:36:26,241 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 18:36:26,241 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 18:36:26,241 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 18:36:26,242 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 18:36:26,242 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 18:36:26,243 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 18:36:26,243 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-24 18:36:26,243 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 18:36:26,244 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 18:36:26,244 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 18:36:26,244 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 18:36:26,244 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 18:36:26,245 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 18:36:26,245 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 18:36:26,245 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 18:36:26,246 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 18:36:26,246 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 18:36:26,246 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 18:36:26,247 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 18:36:26,247 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 18:36:26,247 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 18:36:26,248 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 18:36:26,248 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 18:36:26,248 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 18:36:26,249 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 18:36:26,250 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 18:36:26,250 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3012c2825f53c0db53d950c12df6540de859b34b2bef033c36a98846352dedd3 [2024-10-24 18:36:26,515 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 18:36:26,542 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 18:36:26,545 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 18:36:26,546 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 18:36:26,547 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 18:36:26,548 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i [2024-10-24 18:36:28,064 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 18:36:28,391 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 18:36:28,393 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i [2024-10-24 18:36:28,420 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b928af9bb/9765e3a65c5841d4855712e41a46264e/FLAG5e8b10c9c [2024-10-24 18:36:28,635 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b928af9bb/9765e3a65c5841d4855712e41a46264e [2024-10-24 18:36:28,637 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 18:36:28,639 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 18:36:28,640 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 18:36:28,640 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 18:36:28,648 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 18:36:28,648 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:36:28" (1/1) ... [2024-10-24 18:36:28,649 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c09b0d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:28, skipping insertion in model container [2024-10-24 18:36:28,649 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:36:28" (1/1) ... [2024-10-24 18:36:28,712 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 18:36:29,419 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 18:36:29,440 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2024-10-24 18:36:29,441 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6d3b26e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:29, skipping insertion in model container [2024-10-24 18:36:29,445 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 18:36:29,446 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-10-24 18:36:29,448 INFO L158 Benchmark]: Toolchain (without parser) took 808.25ms. Allocated memory is still 146.8MB. Free memory was 88.7MB in the beginning and 65.0MB in the end (delta: 23.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-10-24 18:36:29,448 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 146.8MB. Free memory is still 106.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 18:36:29,449 INFO L158 Benchmark]: CACSL2BoogieTranslator took 805.60ms. Allocated memory is still 146.8MB. Free memory was 88.4MB in the beginning and 65.0MB in the end (delta: 23.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-24 18:36:29,450 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 146.8MB. Free memory is still 106.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 805.60ms. Allocated memory is still 146.8MB. Free memory was 88.4MB in the beginning and 65.0MB in the end (delta: 23.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 990]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3012c2825f53c0db53d950c12df6540de859b34b2bef033c36a98846352dedd3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 18:36:31,551 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 18:36:31,622 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-10-24 18:36:31,627 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 18:36:31,627 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 18:36:31,664 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 18:36:31,666 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 18:36:31,667 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 18:36:31,668 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 18:36:31,669 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 18:36:31,669 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 18:36:31,669 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 18:36:31,670 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 18:36:31,672 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 18:36:31,672 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 18:36:31,673 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 18:36:31,673 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 18:36:31,673 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 18:36:31,673 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 18:36:31,674 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 18:36:31,674 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 18:36:31,675 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 18:36:31,675 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-24 18:36:31,675 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 18:36:31,676 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 18:36:31,676 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-24 18:36:31,676 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 18:36:31,677 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-24 18:36:31,677 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 18:36:31,677 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 18:36:31,678 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 18:36:31,678 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 18:36:31,678 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 18:36:31,679 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 18:36:31,679 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 18:36:31,679 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 18:36:31,679 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 18:36:31,680 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 18:36:31,680 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-24 18:36:31,680 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-24 18:36:31,680 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 18:36:31,681 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 18:36:31,681 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 18:36:31,681 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 18:36:31,681 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-24 18:36:31,682 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3012c2825f53c0db53d950c12df6540de859b34b2bef033c36a98846352dedd3 [2024-10-24 18:36:32,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 18:36:32,064 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 18:36:32,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 18:36:32,069 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 18:36:32,070 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 18:36:32,073 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i [2024-10-24 18:36:33,767 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 18:36:34,084 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 18:36:34,084 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i [2024-10-24 18:36:34,108 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fc863294/b4b959df8ef2464eb01126ac6107c1e5/FLAG0a2561c5b [2024-10-24 18:36:34,121 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fc863294/b4b959df8ef2464eb01126ac6107c1e5 [2024-10-24 18:36:34,123 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 18:36:34,125 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 18:36:34,127 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 18:36:34,127 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 18:36:34,133 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 18:36:34,133 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:36:34" (1/1) ... [2024-10-24 18:36:34,134 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1242ef3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:34, skipping insertion in model container [2024-10-24 18:36:34,135 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:36:34" (1/1) ... [2024-10-24 18:36:34,206 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 18:36:34,849 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 18:36:34,872 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-10-24 18:36:34,886 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 18:36:35,026 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 18:36:35,035 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 18:36:35,140 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 18:36:35,199 INFO L204 MainTranslator]: Completed translation [2024-10-24 18:36:35,200 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:35 WrapperNode [2024-10-24 18:36:35,200 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 18:36:35,201 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 18:36:35,201 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 18:36:35,201 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 18:36:35,208 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:35" (1/1) ... [2024-10-24 18:36:35,250 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:35" (1/1) ... [2024-10-24 18:36:35,318 INFO L138 Inliner]: procedures = 285, calls = 290, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1069 [2024-10-24 18:36:35,319 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 18:36:35,320 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 18:36:35,320 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 18:36:35,321 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 18:36:35,332 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:35" (1/1) ... [2024-10-24 18:36:35,336 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:35" (1/1) ... [2024-10-24 18:36:35,347 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:35" (1/1) ... [2024-10-24 18:36:35,419 INFO L175 MemorySlicer]: Split 259 memory accesses to 4 slices as follows [2, 3, 220, 34]. 85 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 55 writes are split as follows [0, 2, 49, 4]. [2024-10-24 18:36:35,419 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:35" (1/1) ... [2024-10-24 18:36:35,419 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:35" (1/1) ... [2024-10-24 18:36:35,459 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:35" (1/1) ... [2024-10-24 18:36:35,467 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:35" (1/1) ... [2024-10-24 18:36:35,478 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:35" (1/1) ... [2024-10-24 18:36:35,487 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:35" (1/1) ... [2024-10-24 18:36:35,512 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 18:36:35,514 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 18:36:35,514 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 18:36:35,514 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 18:36:35,515 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:35" (1/1) ... [2024-10-24 18:36:35,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 18:36:35,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 18:36:35,560 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 18:36:35,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 18:36:35,642 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-10-24 18:36:35,642 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-10-24 18:36:35,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-10-24 18:36:35,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-10-24 18:36:35,643 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-10-24 18:36:35,643 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-10-24 18:36:35,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-24 18:36:35,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-24 18:36:35,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-24 18:36:35,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-10-24 18:36:35,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-24 18:36:35,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-24 18:36:35,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-24 18:36:35,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-24 18:36:35,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-24 18:36:35,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 18:36:35,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-24 18:36:35,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-24 18:36:35,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-24 18:36:35,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-10-24 18:36:35,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-24 18:36:35,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-24 18:36:35,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-24 18:36:35,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-10-24 18:36:35,648 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2024-10-24 18:36:35,648 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2024-10-24 18:36:35,649 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-24 18:36:35,649 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-24 18:36:35,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-24 18:36:35,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 18:36:35,649 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2024-10-24 18:36:35,650 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2024-10-24 18:36:35,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-24 18:36:35,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-24 18:36:35,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-24 18:36:35,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-24 18:36:35,651 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2024-10-24 18:36:35,651 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2024-10-24 18:36:35,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 18:36:35,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 18:36:35,919 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 18:36:35,921 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 18:36:40,001 INFO L? ?]: Removed 1086 outVars from TransFormulas that were not future-live. [2024-10-24 18:36:40,001 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 18:36:40,189 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 18:36:40,189 INFO L314 CfgBuilder]: Removed 63 assume(true) statements. [2024-10-24 18:36:40,190 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:36:40 BoogieIcfgContainer [2024-10-24 18:36:40,190 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 18:36:40,191 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 18:36:40,191 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 18:36:40,196 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 18:36:40,197 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:36:34" (1/3) ... [2024-10-24 18:36:40,197 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d15687d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:36:40, skipping insertion in model container [2024-10-24 18:36:40,198 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:35" (2/3) ... [2024-10-24 18:36:40,198 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d15687d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:36:40, skipping insertion in model container [2024-10-24 18:36:40,198 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:36:40" (3/3) ... [2024-10-24 18:36:40,199 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test6-1.i [2024-10-24 18:36:40,216 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 18:36:40,216 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 522 error locations. [2024-10-24 18:36:40,295 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 18:36:40,300 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;@e971341, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 18:36:40,301 INFO L334 AbstractCegarLoop]: Starting to check reachability of 522 error locations. [2024-10-24 18:36:40,307 INFO L276 IsEmpty]: Start isEmpty. Operand has 977 states, 432 states have (on average 2.497685185185185) internal successors, (1079), 957 states have internal predecessors, (1079), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-24 18:36:40,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-10-24 18:36:40,311 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:36:40,311 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-10-24 18:36:40,312 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-24 18:36:40,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:36:40,316 INFO L85 PathProgramCache]: Analyzing trace with hash 55116, now seen corresponding path program 1 times [2024-10-24 18:36:40,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:36:40,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1957765056] [2024-10-24 18:36:40,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:36:40,328 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:36:40,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:36:40,331 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:36:40,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-24 18:36:40,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:36:40,487 INFO L255 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 18:36:40,493 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:36:40,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-24 18:36:40,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:36:40,605 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:36:40,606 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:36:40,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1957765056] [2024-10-24 18:36:40,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1957765056] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:36:40,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:36:40,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 18:36:40,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504775500] [2024-10-24 18:36:40,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:36:40,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 18:36:40,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:36:40,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 18:36:40,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:36:40,684 INFO L87 Difference]: Start difference. First operand has 977 states, 432 states have (on average 2.497685185185185) internal successors, (1079), 957 states have internal predecessors, (1079), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:36:42,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:36:42,691 INFO L93 Difference]: Finished difference Result 1048 states and 1118 transitions. [2024-10-24 18:36:42,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 18:36:42,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2024-10-24 18:36:42,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:36:42,721 INFO L225 Difference]: With dead ends: 1048 [2024-10-24 18:36:42,721 INFO L226 Difference]: Without dead ends: 1047 [2024-10-24 18:36:42,722 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:36:42,726 INFO L432 NwaCegarLoop]: 654 mSDtfsCounter, 649 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 652 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-24 18:36:42,727 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [652 Valid, 854 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-24 18:36:42,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2024-10-24 18:36:42,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 990. [2024-10-24 18:36:42,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 990 states, 460 states have (on average 2.3239130434782607) internal successors, (1069), 972 states have internal predecessors, (1069), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-24 18:36:42,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 990 states to 990 states and 1099 transitions. [2024-10-24 18:36:42,815 INFO L78 Accepts]: Start accepts. Automaton has 990 states and 1099 transitions. Word has length 2 [2024-10-24 18:36:42,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:36:42,816 INFO L471 AbstractCegarLoop]: Abstraction has 990 states and 1099 transitions. [2024-10-24 18:36:42,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:36:42,816 INFO L276 IsEmpty]: Start isEmpty. Operand 990 states and 1099 transitions. [2024-10-24 18:36:42,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-10-24 18:36:42,817 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:36:42,817 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-10-24 18:36:42,821 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-10-24 18:36:43,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:36:43,019 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-24 18:36:43,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:36:43,020 INFO L85 PathProgramCache]: Analyzing trace with hash 55117, now seen corresponding path program 1 times [2024-10-24 18:36:43,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:36:43,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2083957865] [2024-10-24 18:36:43,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:36:43,020 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:36:43,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:36:43,024 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:36:43,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-24 18:36:43,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:36:43,150 INFO L255 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 18:36:43,151 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:36:43,164 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-24 18:36:43,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:36:43,180 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:36:43,181 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:36:43,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2083957865] [2024-10-24 18:36:43,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2083957865] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:36:43,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:36:43,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 18:36:43,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49375826] [2024-10-24 18:36:43,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:36:43,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 18:36:43,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:36:43,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 18:36:43,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:36:43,186 INFO L87 Difference]: Start difference. First operand 990 states and 1099 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:36:45,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:36:45,451 INFO L93 Difference]: Finished difference Result 1355 states and 1501 transitions. [2024-10-24 18:36:45,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 18:36:45,453 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2024-10-24 18:36:45,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:36:45,458 INFO L225 Difference]: With dead ends: 1355 [2024-10-24 18:36:45,458 INFO L226 Difference]: Without dead ends: 1355 [2024-10-24 18:36:45,462 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:36:45,463 INFO L432 NwaCegarLoop]: 765 mSDtfsCounter, 389 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 1260 SdHoareTripleChecker+Invalid, 785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-24 18:36:45,464 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 1260 Invalid, 785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-24 18:36:45,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1355 states. [2024-10-24 18:36:45,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1355 to 1164. [2024-10-24 18:36:45,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1164 states, 633 states have (on average 2.2985781990521326) internal successors, (1455), 1144 states have internal predecessors, (1455), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-24 18:36:45,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1164 states to 1164 states and 1489 transitions. [2024-10-24 18:36:45,493 INFO L78 Accepts]: Start accepts. Automaton has 1164 states and 1489 transitions. Word has length 2 [2024-10-24 18:36:45,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:36:45,493 INFO L471 AbstractCegarLoop]: Abstraction has 1164 states and 1489 transitions. [2024-10-24 18:36:45,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:36:45,494 INFO L276 IsEmpty]: Start isEmpty. Operand 1164 states and 1489 transitions. [2024-10-24 18:36:45,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-24 18:36:45,494 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:36:45,494 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-24 18:36:45,499 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-10-24 18:36:45,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:36:45,698 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-24 18:36:45,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:36:45,699 INFO L85 PathProgramCache]: Analyzing trace with hash -636050060, now seen corresponding path program 1 times [2024-10-24 18:36:45,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:36:45,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [49874459] [2024-10-24 18:36:45,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:36:45,700 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:36:45,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:36:45,703 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:36:45,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-10-24 18:36:45,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:36:45,849 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 18:36:45,852 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:36:45,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-24 18:36:45,871 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-24 18:36:45,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 18:36:45,971 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-10-24 18:36:45,995 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-24 18:36:45,996 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-10-24 18:36:46,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:36:46,029 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:36:46,030 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:36:46,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [49874459] [2024-10-24 18:36:46,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [49874459] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:36:46,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:36:46,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 18:36:46,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019028708] [2024-10-24 18:36:46,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:36:46,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 18:36:46,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:36:46,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 18:36:46,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 18:36:46,034 INFO L87 Difference]: Start difference. First operand 1164 states and 1489 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:36:49,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:36:49,550 INFO L93 Difference]: Finished difference Result 1798 states and 2181 transitions. [2024-10-24 18:36:49,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 18:36:49,551 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-10-24 18:36:49,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:36:49,557 INFO L225 Difference]: With dead ends: 1798 [2024-10-24 18:36:49,557 INFO L226 Difference]: Without dead ends: 1798 [2024-10-24 18:36:49,558 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 18:36:49,559 INFO L432 NwaCegarLoop]: 505 mSDtfsCounter, 662 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 1824 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 666 SdHoareTripleChecker+Valid, 1235 SdHoareTripleChecker+Invalid, 1836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-10-24 18:36:49,559 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [666 Valid, 1235 Invalid, 1836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1824 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-10-24 18:36:49,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1798 states. [2024-10-24 18:36:49,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1798 to 1280. [2024-10-24 18:36:49,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1280 states, 749 states have (on average 2.281708945260347) internal successors, (1709), 1260 states have internal predecessors, (1709), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-24 18:36:49,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1280 states to 1280 states and 1743 transitions. [2024-10-24 18:36:49,597 INFO L78 Accepts]: Start accepts. Automaton has 1280 states and 1743 transitions. Word has length 6 [2024-10-24 18:36:49,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:36:49,598 INFO L471 AbstractCegarLoop]: Abstraction has 1280 states and 1743 transitions. [2024-10-24 18:36:49,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:36:49,598 INFO L276 IsEmpty]: Start isEmpty. Operand 1280 states and 1743 transitions. [2024-10-24 18:36:49,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-24 18:36:49,599 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:36:49,599 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:36:49,604 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-10-24 18:36:49,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:36:49,800 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-24 18:36:49,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:36:49,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1757284643, now seen corresponding path program 1 times [2024-10-24 18:36:49,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:36:49,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [486457285] [2024-10-24 18:36:49,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:36:49,801 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:36:49,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:36:49,805 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:36:49,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-10-24 18:36:49,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:36:49,931 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 18:36:49,933 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:36:49,940 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-24 18:36:49,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:36:49,951 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:36:49,952 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:36:49,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [486457285] [2024-10-24 18:36:49,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [486457285] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:36:49,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:36:49,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 18:36:49,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095563577] [2024-10-24 18:36:49,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:36:49,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 18:36:49,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:36:49,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 18:36:49,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:36:49,955 INFO L87 Difference]: Start difference. First operand 1280 states and 1743 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:36:51,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:36:51,689 INFO L93 Difference]: Finished difference Result 1754 states and 2445 transitions. [2024-10-24 18:36:51,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 18:36:51,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-10-24 18:36:51,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:36:51,696 INFO L225 Difference]: With dead ends: 1754 [2024-10-24 18:36:51,696 INFO L226 Difference]: Without dead ends: 1754 [2024-10-24 18:36:51,697 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:36:51,702 INFO L432 NwaCegarLoop]: 825 mSDtfsCounter, 830 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 833 SdHoareTripleChecker+Valid, 1066 SdHoareTripleChecker+Invalid, 860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-24 18:36:51,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [833 Valid, 1066 Invalid, 860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-24 18:36:51,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1754 states. [2024-10-24 18:36:51,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1754 to 1235. [2024-10-24 18:36:51,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1235 states, 749 states have (on average 2.202937249666222) internal successors, (1650), 1215 states have internal predecessors, (1650), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-24 18:36:51,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1235 states to 1235 states and 1684 transitions. [2024-10-24 18:36:51,732 INFO L78 Accepts]: Start accepts. Automaton has 1235 states and 1684 transitions. Word has length 7 [2024-10-24 18:36:51,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:36:51,735 INFO L471 AbstractCegarLoop]: Abstraction has 1235 states and 1684 transitions. [2024-10-24 18:36:51,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:36:51,736 INFO L276 IsEmpty]: Start isEmpty. Operand 1235 states and 1684 transitions. [2024-10-24 18:36:51,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-24 18:36:51,737 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:36:51,737 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:36:51,741 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-10-24 18:36:51,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:36:51,937 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-24 18:36:51,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:36:51,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1757284644, now seen corresponding path program 1 times [2024-10-24 18:36:51,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:36:51,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [946575947] [2024-10-24 18:36:51,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:36:51,940 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:36:51,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:36:51,944 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:36:51,945 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-10-24 18:36:52,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:36:52,081 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 18:36:52,083 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:36:52,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-24 18:36:52,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:36:52,118 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:36:52,118 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:36:52,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [946575947] [2024-10-24 18:36:52,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [946575947] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:36:52,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:36:52,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 18:36:52,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658585105] [2024-10-24 18:36:52,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:36:52,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 18:36:52,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:36:52,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 18:36:52,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:36:52,120 INFO L87 Difference]: Start difference. First operand 1235 states and 1684 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:36:54,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:36:54,002 INFO L93 Difference]: Finished difference Result 1809 states and 2458 transitions. [2024-10-24 18:36:54,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 18:36:54,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-10-24 18:36:54,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:36:54,009 INFO L225 Difference]: With dead ends: 1809 [2024-10-24 18:36:54,009 INFO L226 Difference]: Without dead ends: 1809 [2024-10-24 18:36:54,010 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:36:54,011 INFO L432 NwaCegarLoop]: 973 mSDtfsCounter, 633 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 831 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 635 SdHoareTripleChecker+Valid, 1338 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-24 18:36:54,013 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [635 Valid, 1338 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 831 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-24 18:36:54,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1809 states. [2024-10-24 18:36:54,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1809 to 1227. [2024-10-24 18:36:54,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1227 states, 751 states have (on average 2.1677762982689748) internal successors, (1628), 1207 states have internal predecessors, (1628), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-24 18:36:54,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1227 states to 1227 states and 1662 transitions. [2024-10-24 18:36:54,045 INFO L78 Accepts]: Start accepts. Automaton has 1227 states and 1662 transitions. Word has length 7 [2024-10-24 18:36:54,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:36:54,046 INFO L471 AbstractCegarLoop]: Abstraction has 1227 states and 1662 transitions. [2024-10-24 18:36:54,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:36:54,046 INFO L276 IsEmpty]: Start isEmpty. Operand 1227 states and 1662 transitions. [2024-10-24 18:36:54,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-24 18:36:54,046 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:36:54,047 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:36:54,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2024-10-24 18:36:54,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:36:54,247 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-24 18:36:54,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:36:54,248 INFO L85 PathProgramCache]: Analyzing trace with hash -2143508545, now seen corresponding path program 1 times [2024-10-24 18:36:54,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:36:54,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [920321061] [2024-10-24 18:36:54,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:36:54,249 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:36:54,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:36:54,250 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:36:54,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-10-24 18:36:54,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:36:54,370 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 18:36:54,372 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:36:54,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:36:54,451 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:36:54,452 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:36:54,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [920321061] [2024-10-24 18:36:54,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [920321061] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:36:54,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:36:54,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 18:36:54,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38240543] [2024-10-24 18:36:54,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:36:54,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 18:36:54,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:36:54,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 18:36:54,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 18:36:54,453 INFO L87 Difference]: Start difference. First operand 1227 states and 1662 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:36:55,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:36:55,878 INFO L93 Difference]: Finished difference Result 1627 states and 2172 transitions. [2024-10-24 18:36:55,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 18:36:55,880 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-10-24 18:36:55,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:36:55,884 INFO L225 Difference]: With dead ends: 1627 [2024-10-24 18:36:55,885 INFO L226 Difference]: Without dead ends: 1627 [2024-10-24 18:36:55,885 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 18:36:55,885 INFO L432 NwaCegarLoop]: 918 mSDtfsCounter, 406 mSDsluCounter, 1607 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 2525 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-24 18:36:55,886 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 2525 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-24 18:36:55,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1627 states. [2024-10-24 18:36:55,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1627 to 1437. [2024-10-24 18:36:55,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1437 states, 961 states have (on average 2.1800208116545265) internal successors, (2095), 1417 states have internal predecessors, (2095), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-24 18:36:55,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1437 states to 1437 states and 2129 transitions. [2024-10-24 18:36:55,913 INFO L78 Accepts]: Start accepts. Automaton has 1437 states and 2129 transitions. Word has length 12 [2024-10-24 18:36:55,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:36:55,914 INFO L471 AbstractCegarLoop]: Abstraction has 1437 states and 2129 transitions. [2024-10-24 18:36:55,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:36:55,914 INFO L276 IsEmpty]: Start isEmpty. Operand 1437 states and 2129 transitions. [2024-10-24 18:36:55,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-24 18:36:55,915 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:36:55,915 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:36:55,919 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-10-24 18:36:56,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:36:56,116 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr322REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-24 18:36:56,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:36:56,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1554900703, now seen corresponding path program 1 times [2024-10-24 18:36:56,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:36:56,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [632381225] [2024-10-24 18:36:56,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:36:56,118 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:36:56,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:36:56,121 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:36:56,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-10-24 18:36:56,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:36:56,246 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 18:36:56,247 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:36:56,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:36:56,254 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:36:56,255 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:36:56,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [632381225] [2024-10-24 18:36:56,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [632381225] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:36:56,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:36:56,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 18:36:56,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410017251] [2024-10-24 18:36:56,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:36:56,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 18:36:56,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:36:56,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 18:36:56,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:36:56,256 INFO L87 Difference]: Start difference. First operand 1437 states and 2129 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:36:56,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:36:56,766 INFO L93 Difference]: Finished difference Result 1353 states and 1969 transitions. [2024-10-24 18:36:56,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 18:36:56,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-10-24 18:36:56,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:36:56,771 INFO L225 Difference]: With dead ends: 1353 [2024-10-24 18:36:56,772 INFO L226 Difference]: Without dead ends: 1353 [2024-10-24 18:36:56,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:36:56,772 INFO L432 NwaCegarLoop]: 812 mSDtfsCounter, 61 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 1582 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 18:36:56,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 1582 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 18:36:56,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1353 states. [2024-10-24 18:36:56,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1353 to 1353. [2024-10-24 18:36:56,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1353 states, 901 states have (on average 2.1476137624861265) internal successors, (1935), 1333 states have internal predecessors, (1935), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-24 18:36:56,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1353 states to 1353 states and 1969 transitions. [2024-10-24 18:36:56,803 INFO L78 Accepts]: Start accepts. Automaton has 1353 states and 1969 transitions. Word has length 12 [2024-10-24 18:36:56,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:36:56,803 INFO L471 AbstractCegarLoop]: Abstraction has 1353 states and 1969 transitions. [2024-10-24 18:36:56,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:36:56,804 INFO L276 IsEmpty]: Start isEmpty. Operand 1353 states and 1969 transitions. [2024-10-24 18:36:56,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-24 18:36:56,805 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:36:56,805 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:36:56,809 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-10-24 18:36:57,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:36:57,006 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-24 18:36:57,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:36:57,006 INFO L85 PathProgramCache]: Analyzing trace with hash 201952929, now seen corresponding path program 1 times [2024-10-24 18:36:57,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:36:57,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [277863497] [2024-10-24 18:36:57,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:36:57,007 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:36:57,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:36:57,008 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:36:57,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-10-24 18:36:57,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:36:57,151 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 18:36:57,154 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:36:57,159 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-24 18:36:57,160 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-24 18:36:57,161 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-24 18:36:57,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2024-10-24 18:36:57,209 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 18:36:57,210 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2024-10-24 18:36:57,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:36:57,221 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:36:57,222 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:36:57,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [277863497] [2024-10-24 18:36:57,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [277863497] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:36:57,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:36:57,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 18:36:57,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528027067] [2024-10-24 18:36:57,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:36:57,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 18:36:57,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:36:57,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 18:36:57,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 18:36:57,224 INFO L87 Difference]: Start difference. First operand 1353 states and 1969 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:36:58,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:36:58,362 INFO L93 Difference]: Finished difference Result 1853 states and 2258 transitions. [2024-10-24 18:36:58,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 18:36:58,363 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-10-24 18:36:58,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:36:58,367 INFO L225 Difference]: With dead ends: 1853 [2024-10-24 18:36:58,367 INFO L226 Difference]: Without dead ends: 1853 [2024-10-24 18:36:58,368 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 18:36:58,368 INFO L432 NwaCegarLoop]: 944 mSDtfsCounter, 809 mSDsluCounter, 1734 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 2678 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 18:36:58,368 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [821 Valid, 2678 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 18:36:58,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1853 states. [2024-10-24 18:36:58,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1853 to 1082. [2024-10-24 18:36:58,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1082 states, 632 states have (on average 2.1297468354430378) internal successors, (1346), 1064 states have internal predecessors, (1346), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-24 18:36:58,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1376 transitions. [2024-10-24 18:36:58,389 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1376 transitions. Word has length 15 [2024-10-24 18:36:58,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:36:58,390 INFO L471 AbstractCegarLoop]: Abstraction has 1082 states and 1376 transitions. [2024-10-24 18:36:58,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:36:58,390 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1376 transitions. [2024-10-24 18:36:58,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-24 18:36:58,390 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:36:58,390 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:36:58,397 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-10-24 18:36:58,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:36:58,592 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-24 18:36:58,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:36:58,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1507469734, now seen corresponding path program 1 times [2024-10-24 18:36:58,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:36:58,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [51100364] [2024-10-24 18:36:58,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:36:58,593 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:36:58,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:36:58,594 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:36:58,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-10-24 18:36:58,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:36:58,774 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 18:36:58,776 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:36:58,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:36:58,785 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:36:58,786 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:36:58,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [51100364] [2024-10-24 18:36:58,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [51100364] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:36:58,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:36:58,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 18:36:58,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400124615] [2024-10-24 18:36:58,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:36:58,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 18:36:58,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:36:58,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 18:36:58,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:36:58,787 INFO L87 Difference]: Start difference. First operand 1082 states and 1376 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:36:59,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:36:59,399 INFO L93 Difference]: Finished difference Result 1028 states and 1296 transitions. [2024-10-24 18:36:59,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 18:36:59,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-10-24 18:36:59,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:36:59,403 INFO L225 Difference]: With dead ends: 1028 [2024-10-24 18:36:59,403 INFO L226 Difference]: Without dead ends: 1028 [2024-10-24 18:36:59,403 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:36:59,404 INFO L432 NwaCegarLoop]: 775 mSDtfsCounter, 61 mSDsluCounter, 733 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 1508 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 18:36:59,404 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 1508 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 18:36:59,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2024-10-24 18:36:59,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 1028. [2024-10-24 18:36:59,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1028 states, 602 states have (on average 2.1029900332225915) internal successors, (1266), 1010 states have internal predecessors, (1266), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-24 18:36:59,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 1296 transitions. [2024-10-24 18:36:59,417 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 1296 transitions. Word has length 15 [2024-10-24 18:36:59,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:36:59,417 INFO L471 AbstractCegarLoop]: Abstraction has 1028 states and 1296 transitions. [2024-10-24 18:36:59,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:36:59,418 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 1296 transitions. [2024-10-24 18:36:59,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-24 18:36:59,418 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:36:59,418 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:36:59,424 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-10-24 18:36:59,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:36:59,623 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-24 18:36:59,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:36:59,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1274437676, now seen corresponding path program 1 times [2024-10-24 18:36:59,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:36:59,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2078082361] [2024-10-24 18:36:59,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:36:59,624 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:36:59,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:36:59,627 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:36:59,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-10-24 18:36:59,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:36:59,807 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 18:36:59,808 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:36:59,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:36:59,835 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:36:59,835 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:36:59,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2078082361] [2024-10-24 18:36:59,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2078082361] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:36:59,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:36:59,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 18:36:59,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969263113] [2024-10-24 18:36:59,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:36:59,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 18:36:59,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:36:59,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 18:36:59,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 18:36:59,837 INFO L87 Difference]: Start difference. First operand 1028 states and 1296 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:37:00,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:37:00,501 INFO L93 Difference]: Finished difference Result 1012 states and 1252 transitions. [2024-10-24 18:37:00,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 18:37:00,503 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-10-24 18:37:00,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:37:00,506 INFO L225 Difference]: With dead ends: 1012 [2024-10-24 18:37:00,507 INFO L226 Difference]: Without dead ends: 1012 [2024-10-24 18:37:00,507 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 18:37:00,507 INFO L432 NwaCegarLoop]: 744 mSDtfsCounter, 45 mSDsluCounter, 1470 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 2214 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 18:37:00,508 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 2214 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 18:37:00,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2024-10-24 18:37:00,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 1012. [2024-10-24 18:37:00,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 600 states have (on average 2.0366666666666666) internal successors, (1222), 994 states have internal predecessors, (1222), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-24 18:37:00,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1252 transitions. [2024-10-24 18:37:00,522 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1252 transitions. Word has length 17 [2024-10-24 18:37:00,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:37:00,522 INFO L471 AbstractCegarLoop]: Abstraction has 1012 states and 1252 transitions. [2024-10-24 18:37:00,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:37:00,522 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1252 transitions. [2024-10-24 18:37:00,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-24 18:37:00,523 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:37:00,523 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:37:00,529 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2024-10-24 18:37:00,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:37:00,724 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-24 18:37:00,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:37:00,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1196089309, now seen corresponding path program 1 times [2024-10-24 18:37:00,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:37:00,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1231625535] [2024-10-24 18:37:00,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:37:00,725 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:37:00,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:37:00,726 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:37:00,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-10-24 18:37:00,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:37:00,909 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 18:37:00,917 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:37:00,927 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-24 18:37:01,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:37:01,136 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:37:01,136 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:37:01,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1231625535] [2024-10-24 18:37:01,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1231625535] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:37:01,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:37:01,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 18:37:01,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143090757] [2024-10-24 18:37:01,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:37:01,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 18:37:01,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:37:01,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 18:37:01,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 18:37:01,138 INFO L87 Difference]: Start difference. First operand 1012 states and 1252 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:37:03,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:37:03,442 INFO L93 Difference]: Finished difference Result 1498 states and 1865 transitions. [2024-10-24 18:37:03,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 18:37:03,443 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2024-10-24 18:37:03,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:37:03,448 INFO L225 Difference]: With dead ends: 1498 [2024-10-24 18:37:03,448 INFO L226 Difference]: Without dead ends: 1498 [2024-10-24 18:37:03,449 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 18:37:03,449 INFO L432 NwaCegarLoop]: 951 mSDtfsCounter, 535 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 1415 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 1900 SdHoareTripleChecker+Invalid, 1418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-24 18:37:03,449 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 1900 Invalid, 1418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1415 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-24 18:37:03,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1498 states. [2024-10-24 18:37:03,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1498 to 1008. [2024-10-24 18:37:03,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1008 states, 600 states have (on average 2.0233333333333334) internal successors, (1214), 990 states have internal predecessors, (1214), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-24 18:37:03,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1008 states to 1008 states and 1244 transitions. [2024-10-24 18:37:03,468 INFO L78 Accepts]: Start accepts. Automaton has 1008 states and 1244 transitions. Word has length 31 [2024-10-24 18:37:03,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:37:03,468 INFO L471 AbstractCegarLoop]: Abstraction has 1008 states and 1244 transitions. [2024-10-24 18:37:03,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:37:03,468 INFO L276 IsEmpty]: Start isEmpty. Operand 1008 states and 1244 transitions. [2024-10-24 18:37:03,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-24 18:37:03,470 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:37:03,470 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:37:03,477 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2024-10-24 18:37:03,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:37:03,675 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-24 18:37:03,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:37:03,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1196089310, now seen corresponding path program 1 times [2024-10-24 18:37:03,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:37:03,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1409688840] [2024-10-24 18:37:03,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:37:03,676 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:37:03,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:37:03,679 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:37:03,681 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-10-24 18:37:03,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:37:03,870 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 18:37:03,872 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:37:03,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-24 18:37:03,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:37:03,980 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:37:03,980 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:37:03,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1409688840] [2024-10-24 18:37:03,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1409688840] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:37:03,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:37:03,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 18:37:03,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923110258] [2024-10-24 18:37:03,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:37:03,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 18:37:03,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:37:03,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 18:37:03,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 18:37:03,982 INFO L87 Difference]: Start difference. First operand 1008 states and 1244 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:37:05,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:37:05,601 INFO L93 Difference]: Finished difference Result 1387 states and 1744 transitions. [2024-10-24 18:37:05,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 18:37:05,602 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2024-10-24 18:37:05,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:37:05,607 INFO L225 Difference]: With dead ends: 1387 [2024-10-24 18:37:05,608 INFO L226 Difference]: Without dead ends: 1387 [2024-10-24 18:37:05,608 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 18:37:05,608 INFO L432 NwaCegarLoop]: 431 mSDtfsCounter, 728 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 731 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 1120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-24 18:37:05,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [731 Valid, 1022 Invalid, 1120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1113 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-24 18:37:05,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1387 states. [2024-10-24 18:37:05,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1387 to 1004. [2024-10-24 18:37:05,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1004 states, 600 states have (on average 2.01) internal successors, (1206), 986 states have internal predecessors, (1206), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-24 18:37:05,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1004 states to 1004 states and 1236 transitions. [2024-10-24 18:37:05,623 INFO L78 Accepts]: Start accepts. Automaton has 1004 states and 1236 transitions. Word has length 31 [2024-10-24 18:37:05,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:37:05,623 INFO L471 AbstractCegarLoop]: Abstraction has 1004 states and 1236 transitions. [2024-10-24 18:37:05,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:37:05,624 INFO L276 IsEmpty]: Start isEmpty. Operand 1004 states and 1236 transitions. [2024-10-24 18:37:05,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-10-24 18:37:05,625 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:37:05,625 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:37:05,632 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2024-10-24 18:37:05,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:37:05,826 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-24 18:37:05,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:37:05,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1418610896, now seen corresponding path program 1 times [2024-10-24 18:37:05,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:37:05,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1480307163] [2024-10-24 18:37:05,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:37:05,828 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:37:05,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:37:05,831 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:37:05,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-10-24 18:37:06,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:37:06,086 INFO L255 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 18:37:06,089 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:37:06,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:37:06,140 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:37:06,140 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:37:06,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1480307163] [2024-10-24 18:37:06,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1480307163] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:37:06,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:37:06,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 18:37:06,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758494954] [2024-10-24 18:37:06,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:37:06,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 18:37:06,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:37:06,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 18:37:06,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 18:37:06,142 INFO L87 Difference]: Start difference. First operand 1004 states and 1236 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:37:06,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:37:06,981 INFO L93 Difference]: Finished difference Result 992 states and 1216 transitions. [2024-10-24 18:37:06,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 18:37:06,982 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-10-24 18:37:06,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:37:06,984 INFO L225 Difference]: With dead ends: 992 [2024-10-24 18:37:06,985 INFO L226 Difference]: Without dead ends: 992 [2024-10-24 18:37:06,985 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 18:37:06,985 INFO L432 NwaCegarLoop]: 738 mSDtfsCounter, 15 mSDsluCounter, 1459 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2197 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 18:37:06,985 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2197 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 18:37:06,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2024-10-24 18:37:06,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 992. [2024-10-24 18:37:06,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 588 states have (on average 2.0170068027210886) internal successors, (1186), 974 states have internal predecessors, (1186), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-24 18:37:06,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1216 transitions. [2024-10-24 18:37:06,997 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1216 transitions. Word has length 51 [2024-10-24 18:37:06,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:37:06,997 INFO L471 AbstractCegarLoop]: Abstraction has 992 states and 1216 transitions. [2024-10-24 18:37:06,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:37:06,998 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1216 transitions. [2024-10-24 18:37:06,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-24 18:37:07,001 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:37:07,001 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:37:07,009 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2024-10-24 18:37:07,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:37:07,202 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-24 18:37:07,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:37:07,202 INFO L85 PathProgramCache]: Analyzing trace with hash -711112527, now seen corresponding path program 1 times [2024-10-24 18:37:07,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:37:07,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [969029378] [2024-10-24 18:37:07,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:37:07,203 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:37:07,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:37:07,207 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:37:07,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-10-24 18:37:07,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:37:07,567 INFO L255 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-24 18:37:07,570 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:37:07,600 INFO L349 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2024-10-24 18:37:07,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 17 [2024-10-24 18:37:07,662 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-10-24 18:37:07,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 28 [2024-10-24 18:37:08,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:37:08,277 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:37:08,277 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:37:08,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [969029378] [2024-10-24 18:37:08,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [969029378] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:37:08,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:37:08,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 18:37:08,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583974976] [2024-10-24 18:37:08,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:37:08,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 18:37:08,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:37:08,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 18:37:08,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-24 18:37:08,278 INFO L87 Difference]: Start difference. First operand 992 states and 1216 transitions. Second operand has 5 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:37:10,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:37:10,718 INFO L93 Difference]: Finished difference Result 1810 states and 2219 transitions. [2024-10-24 18:37:10,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 18:37:10,719 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-10-24 18:37:10,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:37:10,723 INFO L225 Difference]: With dead ends: 1810 [2024-10-24 18:37:10,723 INFO L226 Difference]: Without dead ends: 1810 [2024-10-24 18:37:10,723 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-24 18:37:10,724 INFO L432 NwaCegarLoop]: 479 mSDtfsCounter, 715 mSDsluCounter, 869 mSDsCounter, 0 mSdLazyCounter, 1194 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 715 SdHoareTripleChecker+Valid, 1348 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-24 18:37:10,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [715 Valid, 1348 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1194 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-24 18:37:10,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1810 states. [2024-10-24 18:37:10,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1810 to 1344. [2024-10-24 18:37:10,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1344 states, 925 states have (on average 2.0086486486486486) internal successors, (1858), 1314 states have internal predecessors, (1858), 29 states have call successors, (29), 9 states have call predecessors, (29), 7 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-24 18:37:10,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1344 states to 1344 states and 1912 transitions. [2024-10-24 18:37:10,744 INFO L78 Accepts]: Start accepts. Automaton has 1344 states and 1912 transitions. Word has length 55 [2024-10-24 18:37:10,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:37:10,745 INFO L471 AbstractCegarLoop]: Abstraction has 1344 states and 1912 transitions. [2024-10-24 18:37:10,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:37:10,745 INFO L276 IsEmpty]: Start isEmpty. Operand 1344 states and 1912 transitions. [2024-10-24 18:37:10,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-24 18:37:10,746 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:37:10,746 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:37:10,757 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2024-10-24 18:37:10,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:37:10,947 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-24 18:37:10,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:37:10,947 INFO L85 PathProgramCache]: Analyzing trace with hash -711112526, now seen corresponding path program 1 times [2024-10-24 18:37:10,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:37:10,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1198972888] [2024-10-24 18:37:10,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:37:10,948 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:37:10,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:37:10,949 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:37:10,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-10-24 18:37:11,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:37:11,242 INFO L255 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-24 18:37:11,245 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:37:11,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 18:37:11,266 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-10-24 18:37:11,330 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2024-10-24 18:37:11,330 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2024-10-24 18:37:11,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:37:11,856 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:37:11,857 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:37:11,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1198972888] [2024-10-24 18:37:11,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1198972888] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:37:11,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:37:11,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 18:37:11,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126041166] [2024-10-24 18:37:11,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:37:11,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 18:37:11,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:37:11,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 18:37:11,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 18:37:11,858 INFO L87 Difference]: Start difference. First operand 1344 states and 1912 transitions. Second operand has 4 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:37:13,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:37:13,523 INFO L93 Difference]: Finished difference Result 1349 states and 1918 transitions. [2024-10-24 18:37:13,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 18:37:13,524 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-10-24 18:37:13,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:37:13,528 INFO L225 Difference]: With dead ends: 1349 [2024-10-24 18:37:13,528 INFO L226 Difference]: Without dead ends: 1349 [2024-10-24 18:37:13,528 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 18:37:13,528 INFO L432 NwaCegarLoop]: 743 mSDtfsCounter, 0 mSDsluCounter, 801 mSDsCounter, 0 mSdLazyCounter, 992 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1544 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-24 18:37:13,529 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1544 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 992 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-24 18:37:13,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1349 states. [2024-10-24 18:37:13,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1349 to 1349. [2024-10-24 18:37:13,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1349 states, 929 states have (on average 2.0043057050592035) internal successors, (1862), 1318 states have internal predecessors, (1862), 30 states have call successors, (30), 10 states have call predecessors, (30), 7 states have return successors, (26), 22 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-24 18:37:13,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1349 states to 1349 states and 1918 transitions. [2024-10-24 18:37:13,545 INFO L78 Accepts]: Start accepts. Automaton has 1349 states and 1918 transitions. Word has length 55 [2024-10-24 18:37:13,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:37:13,546 INFO L471 AbstractCegarLoop]: Abstraction has 1349 states and 1918 transitions. [2024-10-24 18:37:13,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:37:13,546 INFO L276 IsEmpty]: Start isEmpty. Operand 1349 states and 1918 transitions. [2024-10-24 18:37:13,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-24 18:37:13,547 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:37:13,547 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:37:13,556 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2024-10-24 18:37:13,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:37:13,748 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-24 18:37:13,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:37:13,748 INFO L85 PathProgramCache]: Analyzing trace with hash 511752310, now seen corresponding path program 1 times [2024-10-24 18:37:13,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:37:13,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [451328164] [2024-10-24 18:37:13,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:37:13,749 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:37:13,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:37:13,750 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:37:13,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-10-24 18:37:14,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:37:14,029 INFO L255 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 18:37:14,031 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:37:14,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:37:14,155 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:37:14,155 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:37:14,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [451328164] [2024-10-24 18:37:14,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [451328164] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:37:14,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:37:14,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 18:37:14,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728849013] [2024-10-24 18:37:14,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:37:14,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 18:37:14,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:37:14,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 18:37:14,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 18:37:14,158 INFO L87 Difference]: Start difference. First operand 1349 states and 1918 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-24 18:37:15,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:37:15,499 INFO L93 Difference]: Finished difference Result 1353 states and 1926 transitions. [2024-10-24 18:37:15,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 18:37:15,501 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2024-10-24 18:37:15,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:37:15,506 INFO L225 Difference]: With dead ends: 1353 [2024-10-24 18:37:15,506 INFO L226 Difference]: Without dead ends: 1353 [2024-10-24 18:37:15,507 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-24 18:37:15,507 INFO L432 NwaCegarLoop]: 735 mSDtfsCounter, 19 mSDsluCounter, 2855 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 3590 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 18:37:15,508 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 3590 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 18:37:15,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1353 states. [2024-10-24 18:37:15,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1353 to 1351. [2024-10-24 18:37:15,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1351 states, 930 states have (on average 2.003225806451613) internal successors, (1863), 1319 states have internal predecessors, (1863), 30 states have call successors, (30), 10 states have call predecessors, (30), 8 states have return successors, (29), 22 states have call predecessors, (29), 26 states have call successors, (29) [2024-10-24 18:37:15,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1351 states to 1351 states and 1922 transitions. [2024-10-24 18:37:15,529 INFO L78 Accepts]: Start accepts. Automaton has 1351 states and 1922 transitions. Word has length 59 [2024-10-24 18:37:15,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:37:15,530 INFO L471 AbstractCegarLoop]: Abstraction has 1351 states and 1922 transitions. [2024-10-24 18:37:15,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-24 18:37:15,530 INFO L276 IsEmpty]: Start isEmpty. Operand 1351 states and 1922 transitions. [2024-10-24 18:37:15,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-24 18:37:15,530 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:37:15,531 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:37:15,542 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2024-10-24 18:37:15,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:37:15,731 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-24 18:37:15,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:37:15,732 INFO L85 PathProgramCache]: Analyzing trace with hash -918850781, now seen corresponding path program 1 times [2024-10-24 18:37:15,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:37:15,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1815274736] [2024-10-24 18:37:15,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:37:15,732 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 [2024-10-24 18:37:15,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:37:15,735 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:37:15,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-10-24 18:37:15,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:37:15,998 INFO L255 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 18:37:16,000 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:37:16,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:37:16,035 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:37:16,035 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:37:16,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1815274736] [2024-10-24 18:37:16,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1815274736] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:37:16,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:37:16,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 18:37:16,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638062869] [2024-10-24 18:37:16,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:37:16,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 18:37:16,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:37:16,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 18:37:16,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 18:37:16,036 INFO L87 Difference]: Start difference. First operand 1351 states and 1922 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:37:17,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:37:17,322 INFO L93 Difference]: Finished difference Result 1375 states and 1946 transitions. [2024-10-24 18:37:17,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 18:37:17,323 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2024-10-24 18:37:17,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:37:17,328 INFO L225 Difference]: With dead ends: 1375 [2024-10-24 18:37:17,328 INFO L226 Difference]: Without dead ends: 1375 [2024-10-24 18:37:17,328 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-24 18:37:17,329 INFO L432 NwaCegarLoop]: 750 mSDtfsCounter, 13 mSDsluCounter, 2993 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 3743 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 18:37:17,329 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 3743 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 18:37:17,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1375 states. [2024-10-24 18:37:17,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1375 to 1371. [2024-10-24 18:37:17,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1371 states, 944 states have (on average 1.99364406779661) internal successors, (1882), 1335 states have internal predecessors, (1882), 32 states have call successors, (32), 14 states have call predecessors, (32), 12 states have return successors, (29), 24 states have call predecessors, (29), 28 states have call successors, (29) [2024-10-24 18:37:17,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1371 states to 1371 states and 1943 transitions. [2024-10-24 18:37:17,360 INFO L78 Accepts]: Start accepts. Automaton has 1371 states and 1943 transitions. Word has length 62 [2024-10-24 18:37:17,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:37:17,362 INFO L471 AbstractCegarLoop]: Abstraction has 1371 states and 1943 transitions. [2024-10-24 18:37:17,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:37:17,362 INFO L276 IsEmpty]: Start isEmpty. Operand 1371 states and 1943 transitions. [2024-10-24 18:37:17,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-24 18:37:17,363 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:37:17,363 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:37:17,372 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2024-10-24 18:37:17,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:37:17,564 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-24 18:37:17,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:37:17,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1853468852, now seen corresponding path program 1 times [2024-10-24 18:37:17,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:37:17,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2143547255] [2024-10-24 18:37:17,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:37:17,565 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:37:17,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:37:17,566 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:37:17,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-10-24 18:37:17,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:37:17,953 INFO L255 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-24 18:37:17,956 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:37:17,961 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-24 18:37:18,072 WARN L873 $PredicateComparison]: unable to prove that (exists ((|alt_malloc_#res.base| (_ BitVec 32))) (= (store |c_old(#valid)| |alt_malloc_#res.base| (_ bv1 1)) |c_#valid|)) is different from true [2024-10-24 18:37:18,084 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-10-24 18:37:18,084 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2024-10-24 18:37:18,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:37:18,097 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:37:18,097 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:37:18,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2143547255] [2024-10-24 18:37:18,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2143547255] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:37:18,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:37:18,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 18:37:18,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430198485] [2024-10-24 18:37:18,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:37:18,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 18:37:18,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:37:18,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 18:37:18,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2024-10-24 18:37:18,101 INFO L87 Difference]: Start difference. First operand 1371 states and 1943 transitions. Second operand has 5 states, 3 states have (on average 20.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 18:37:19,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:37:19,763 INFO L93 Difference]: Finished difference Result 1745 states and 2441 transitions. [2024-10-24 18:37:19,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 18:37:19,764 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 20.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 64 [2024-10-24 18:37:19,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:37:19,768 INFO L225 Difference]: With dead ends: 1745 [2024-10-24 18:37:19,769 INFO L226 Difference]: Without dead ends: 1745 [2024-10-24 18:37:19,769 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2024-10-24 18:37:19,770 INFO L432 NwaCegarLoop]: 402 mSDtfsCounter, 693 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 1134 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 2348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1194 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-24 18:37:19,770 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [696 Valid, 964 Invalid, 2348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1134 Invalid, 0 Unknown, 1194 Unchecked, 1.6s Time] [2024-10-24 18:37:19,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1745 states. [2024-10-24 18:37:19,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1745 to 1370. [2024-10-24 18:37:19,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1370 states, 944 states have (on average 1.9915254237288136) internal successors, (1880), 1334 states have internal predecessors, (1880), 32 states have call successors, (32), 14 states have call predecessors, (32), 12 states have return successors, (29), 24 states have call predecessors, (29), 28 states have call successors, (29) [2024-10-24 18:37:19,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1370 states to 1370 states and 1941 transitions. [2024-10-24 18:37:19,795 INFO L78 Accepts]: Start accepts. Automaton has 1370 states and 1941 transitions. Word has length 64 [2024-10-24 18:37:19,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:37:19,795 INFO L471 AbstractCegarLoop]: Abstraction has 1370 states and 1941 transitions. [2024-10-24 18:37:19,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 20.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 18:37:19,796 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 1941 transitions. [2024-10-24 18:37:19,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-24 18:37:19,796 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:37:19,796 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:37:19,807 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2024-10-24 18:37:19,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:37:19,997 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-24 18:37:19,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:37:19,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1853468853, now seen corresponding path program 1 times [2024-10-24 18:37:19,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:37:19,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [231158617] [2024-10-24 18:37:19,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:37:19,999 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:37:19,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:37:20,002 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:37:20,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-10-24 18:37:20,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:37:20,369 INFO L255 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-24 18:37:20,372 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:37:20,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-24 18:37:20,386 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-24 18:37:20,827 WARN L873 $PredicateComparison]: unable to prove that (exists ((|alt_malloc_#res.base| (_ BitVec 32))) (and (= (store |c_old(#length)| |alt_malloc_#res.base| (select |c_#length| |alt_malloc_#res.base|)) |c_#length|) (= (_ bv0 1) (select |c_old(#valid)| |alt_malloc_#res.base|)))) is different from true [2024-10-24 18:37:20,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 18:37:20,840 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-10-24 18:37:20,855 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-24 18:37:20,855 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-10-24 18:37:20,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:37:20,870 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:37:20,870 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:37:20,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [231158617] [2024-10-24 18:37:20,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [231158617] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:37:20,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:37:20,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 18:37:20,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423093863] [2024-10-24 18:37:20,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:37:20,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 18:37:20,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:37:20,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 18:37:20,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=13, Unknown=1, NotChecked=6, Total=30 [2024-10-24 18:37:20,872 INFO L87 Difference]: Start difference. First operand 1370 states and 1941 transitions. Second operand has 6 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 18:37:24,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:37:24,997 INFO L93 Difference]: Finished difference Result 2329 states and 3258 transitions. [2024-10-24 18:37:24,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 18:37:24,999 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 64 [2024-10-24 18:37:24,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:37:25,008 INFO L225 Difference]: With dead ends: 2329 [2024-10-24 18:37:25,012 INFO L226 Difference]: Without dead ends: 2329 [2024-10-24 18:37:25,012 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=13, Unknown=1, NotChecked=6, Total=30 [2024-10-24 18:37:25,013 INFO L432 NwaCegarLoop]: 786 mSDtfsCounter, 852 mSDsluCounter, 879 mSDsCounter, 0 mSdLazyCounter, 2635 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 1665 SdHoareTripleChecker+Invalid, 4286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 2635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1628 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-10-24 18:37:25,013 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [855 Valid, 1665 Invalid, 4286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 2635 Invalid, 0 Unknown, 1628 Unchecked, 4.0s Time] [2024-10-24 18:37:25,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2329 states. [2024-10-24 18:37:25,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2329 to 1362. [2024-10-24 18:37:25,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1362 states, 944 states have (on average 1.9745762711864407) internal successors, (1864), 1326 states have internal predecessors, (1864), 32 states have call successors, (32), 14 states have call predecessors, (32), 12 states have return successors, (29), 24 states have call predecessors, (29), 28 states have call successors, (29) [2024-10-24 18:37:25,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1362 states to 1362 states and 1925 transitions. [2024-10-24 18:37:25,040 INFO L78 Accepts]: Start accepts. Automaton has 1362 states and 1925 transitions. Word has length 64 [2024-10-24 18:37:25,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:37:25,041 INFO L471 AbstractCegarLoop]: Abstraction has 1362 states and 1925 transitions. [2024-10-24 18:37:25,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 18:37:25,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 1925 transitions. [2024-10-24 18:37:25,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-10-24 18:37:25,042 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:37:25,042 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:37:25,054 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2024-10-24 18:37:25,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:37:25,243 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting alt_bzeroErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-24 18:37:25,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:37:25,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1865756806, now seen corresponding path program 1 times [2024-10-24 18:37:25,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:37:25,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1420648550] [2024-10-24 18:37:25,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:37:25,245 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:37:25,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:37:25,248 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:37:25,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-10-24 18:37:25,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:37:25,599 INFO L255 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-24 18:37:25,601 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:37:25,609 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-24 18:37:25,626 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-10-24 18:37:25,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-10-24 18:37:25,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:37:25,676 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:37:25,676 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:37:25,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1420648550] [2024-10-24 18:37:25,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1420648550] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:37:25,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:37:25,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 18:37:25,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265774415] [2024-10-24 18:37:25,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:37:25,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 18:37:25,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:37:25,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 18:37:25,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-24 18:37:25,678 INFO L87 Difference]: Start difference. First operand 1362 states and 1925 transitions. Second operand has 8 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 18:37:28,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:37:28,696 INFO L93 Difference]: Finished difference Result 1373 states and 1937 transitions. [2024-10-24 18:37:28,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 18:37:28,697 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 70 [2024-10-24 18:37:28,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:37:28,700 INFO L225 Difference]: With dead ends: 1373 [2024-10-24 18:37:28,700 INFO L226 Difference]: Without dead ends: 1373 [2024-10-24 18:37:28,701 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-10-24 18:37:28,701 INFO L432 NwaCegarLoop]: 737 mSDtfsCounter, 12 mSDsluCounter, 2527 mSDsCounter, 0 mSdLazyCounter, 2583 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 3264 SdHoareTripleChecker+Invalid, 2585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-10-24 18:37:28,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 3264 Invalid, 2585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2583 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-10-24 18:37:28,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1373 states. [2024-10-24 18:37:28,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1373 to 1372. [2024-10-24 18:37:28,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1372 states, 952 states have (on average 1.9705882352941178) internal successors, (1876), 1334 states have internal predecessors, (1876), 32 states have call successors, (32), 16 states have call predecessors, (32), 14 states have return successors, (29), 24 states have call predecessors, (29), 28 states have call successors, (29) [2024-10-24 18:37:28,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1372 states to 1372 states and 1937 transitions. [2024-10-24 18:37:28,725 INFO L78 Accepts]: Start accepts. Automaton has 1372 states and 1937 transitions. Word has length 70 [2024-10-24 18:37:28,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:37:28,725 INFO L471 AbstractCegarLoop]: Abstraction has 1372 states and 1937 transitions. [2024-10-24 18:37:28,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 18:37:28,725 INFO L276 IsEmpty]: Start isEmpty. Operand 1372 states and 1937 transitions. [2024-10-24 18:37:28,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-10-24 18:37:28,726 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:37:28,726 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:37:28,736 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2024-10-24 18:37:28,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:37:28,927 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting alt_bzeroErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-24 18:37:28,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:37:28,927 INFO L85 PathProgramCache]: Analyzing trace with hash 2003886214, now seen corresponding path program 1 times [2024-10-24 18:37:28,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:37:28,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1812709337] [2024-10-24 18:37:28,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:37:28,928 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:37:28,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:37:28,930 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:37:28,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2024-10-24 18:37:29,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:37:29,227 INFO L255 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-10-24 18:37:29,229 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:37:29,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-24 18:37:29,277 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-10-24 18:37:29,282 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-10-24 18:37:29,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-10-24 18:37:29,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:37:29,408 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:37:29,408 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:37:29,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1812709337] [2024-10-24 18:37:29,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1812709337] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:37:29,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:37:29,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 18:37:29,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862959349] [2024-10-24 18:37:29,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:37:29,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 18:37:29,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:37:29,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 18:37:29,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 18:37:29,410 INFO L87 Difference]: Start difference. First operand 1372 states and 1937 transitions. Second operand has 9 states, 6 states have (on average 11.0) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 18:37:33,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:37:33,271 INFO L93 Difference]: Finished difference Result 1372 states and 1935 transitions. [2024-10-24 18:37:33,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 18:37:33,272 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 6 states have (on average 11.0) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 71 [2024-10-24 18:37:33,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:37:33,275 INFO L225 Difference]: With dead ends: 1372 [2024-10-24 18:37:33,275 INFO L226 Difference]: Without dead ends: 1372 [2024-10-24 18:37:33,275 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-10-24 18:37:33,279 INFO L432 NwaCegarLoop]: 735 mSDtfsCounter, 11 mSDsluCounter, 3097 mSDsCounter, 0 mSdLazyCounter, 2848 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 3832 SdHoareTripleChecker+Invalid, 2849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-10-24 18:37:33,280 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 3832 Invalid, 2849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2848 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-10-24 18:37:33,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1372 states. [2024-10-24 18:37:33,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1372 to 1372. [2024-10-24 18:37:33,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1372 states, 952 states have (on average 1.968487394957983) internal successors, (1874), 1334 states have internal predecessors, (1874), 32 states have call successors, (32), 16 states have call predecessors, (32), 14 states have return successors, (29), 24 states have call predecessors, (29), 28 states have call successors, (29) [2024-10-24 18:37:33,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1372 states to 1372 states and 1935 transitions. [2024-10-24 18:37:33,300 INFO L78 Accepts]: Start accepts. Automaton has 1372 states and 1935 transitions. Word has length 71 [2024-10-24 18:37:33,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:37:33,300 INFO L471 AbstractCegarLoop]: Abstraction has 1372 states and 1935 transitions. [2024-10-24 18:37:33,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 6 states have (on average 11.0) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 18:37:33,300 INFO L276 IsEmpty]: Start isEmpty. Operand 1372 states and 1935 transitions. [2024-10-24 18:37:33,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-24 18:37:33,301 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:37:33,301 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:37:33,311 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2024-10-24 18:37:33,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:37:33,502 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-24 18:37:33,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:37:33,502 INFO L85 PathProgramCache]: Analyzing trace with hash 894311914, now seen corresponding path program 1 times [2024-10-24 18:37:33,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:37:33,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [195686997] [2024-10-24 18:37:33,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:37:33,503 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:37:33,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:37:33,506 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:37:33,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2024-10-24 18:37:33,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:37:33,857 INFO L255 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 18:37:33,860 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:37:33,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:37:33,882 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:37:33,882 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:37:33,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [195686997] [2024-10-24 18:37:33,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [195686997] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:37:33,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:37:33,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 18:37:33,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844983107] [2024-10-24 18:37:33,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:37:33,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 18:37:33,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:37:33,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 18:37:33,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 18:37:33,884 INFO L87 Difference]: Start difference. First operand 1372 states and 1935 transitions. Second operand has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 18:37:34,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:37:34,557 INFO L93 Difference]: Finished difference Result 1380 states and 1945 transitions. [2024-10-24 18:37:34,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 18:37:34,559 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 76 [2024-10-24 18:37:34,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:37:34,561 INFO L225 Difference]: With dead ends: 1380 [2024-10-24 18:37:34,561 INFO L226 Difference]: Without dead ends: 1378 [2024-10-24 18:37:34,562 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 18:37:34,562 INFO L432 NwaCegarLoop]: 741 mSDtfsCounter, 3 mSDsluCounter, 1474 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2215 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 18:37:34,562 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2215 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 18:37:34,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1378 states. [2024-10-24 18:37:34,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1378 to 1378. [2024-10-24 18:37:34,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1378 states, 956 states have (on average 1.9665271966527196) internal successors, (1880), 1340 states have internal predecessors, (1880), 32 states have call successors, (32), 16 states have call predecessors, (32), 16 states have return successors, (31), 24 states have call predecessors, (31), 28 states have call successors, (31) [2024-10-24 18:37:34,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1378 states to 1378 states and 1943 transitions. [2024-10-24 18:37:34,581 INFO L78 Accepts]: Start accepts. Automaton has 1378 states and 1943 transitions. Word has length 76 [2024-10-24 18:37:34,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:37:34,581 INFO L471 AbstractCegarLoop]: Abstraction has 1378 states and 1943 transitions. [2024-10-24 18:37:34,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 18:37:34,582 INFO L276 IsEmpty]: Start isEmpty. Operand 1378 states and 1943 transitions. [2024-10-24 18:37:34,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-24 18:37:34,582 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:37:34,583 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:37:34,593 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2024-10-24 18:37:34,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:37:34,784 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-24 18:37:34,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:37:34,784 INFO L85 PathProgramCache]: Analyzing trace with hash 886648934, now seen corresponding path program 1 times [2024-10-24 18:37:34,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:37:34,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [256490790] [2024-10-24 18:37:34,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:37:34,785 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:37:34,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:37:34,789 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:37:34,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2024-10-24 18:37:35,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:37:35,115 INFO L255 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 18:37:35,117 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:37:35,150 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:37:35,150 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 18:37:35,254 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:37:35,254 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:37:35,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [256490790] [2024-10-24 18:37:35,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [256490790] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 18:37:35,254 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 18:37:35,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-10-24 18:37:35,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720686077] [2024-10-24 18:37:35,255 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 18:37:35,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 18:37:35,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:37:35,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 18:37:35,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-10-24 18:37:35,256 INFO L87 Difference]: Start difference. First operand 1378 states and 1943 transitions. Second operand has 10 states, 8 states have (on average 9.5) internal successors, (76), 10 states have internal predecessors, (76), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-24 18:37:36,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:37:36,681 INFO L93 Difference]: Finished difference Result 1392 states and 1961 transitions. [2024-10-24 18:37:36,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 18:37:36,682 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 9.5) internal successors, (76), 10 states have internal predecessors, (76), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 77 [2024-10-24 18:37:36,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:37:36,685 INFO L225 Difference]: With dead ends: 1392 [2024-10-24 18:37:36,685 INFO L226 Difference]: Without dead ends: 1388 [2024-10-24 18:37:36,685 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2024-10-24 18:37:36,685 INFO L432 NwaCegarLoop]: 741 mSDtfsCounter, 13 mSDsluCounter, 4414 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 5155 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 18:37:36,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 5155 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 709 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 18:37:36,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1388 states. [2024-10-24 18:37:36,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1388 to 1386. [2024-10-24 18:37:36,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1386 states, 964 states have (on average 1.9605809128630705) internal successors, (1890), 1348 states have internal predecessors, (1890), 32 states have call successors, (32), 16 states have call predecessors, (32), 16 states have return successors, (31), 24 states have call predecessors, (31), 28 states have call successors, (31) [2024-10-24 18:37:36,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1386 states to 1386 states and 1953 transitions. [2024-10-24 18:37:36,705 INFO L78 Accepts]: Start accepts. Automaton has 1386 states and 1953 transitions. Word has length 77 [2024-10-24 18:37:36,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:37:36,706 INFO L471 AbstractCegarLoop]: Abstraction has 1386 states and 1953 transitions. [2024-10-24 18:37:36,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 9.5) internal successors, (76), 10 states have internal predecessors, (76), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-24 18:37:36,706 INFO L276 IsEmpty]: Start isEmpty. Operand 1386 states and 1953 transitions. [2024-10-24 18:37:36,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-24 18:37:36,707 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:37:36,707 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:37:36,717 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2024-10-24 18:37:36,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:37:36,908 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-24 18:37:36,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:37:36,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1220336874, now seen corresponding path program 2 times [2024-10-24 18:37:36,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:37:36,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1207732830] [2024-10-24 18:37:36,909 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 18:37:36,909 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:37:36,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:37:36,912 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:37:36,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2024-10-24 18:37:37,470 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 18:37:37,470 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 18:37:37,484 INFO L255 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-24 18:37:37,486 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:37:37,569 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:37:37,569 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 18:37:37,828 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:37:37,828 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:37:37,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1207732830] [2024-10-24 18:37:37,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1207732830] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 18:37:37,828 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 18:37:37,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2024-10-24 18:37:37,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260380876] [2024-10-24 18:37:37,828 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 18:37:37,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-24 18:37:37,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:37:37,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-24 18:37:37,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2024-10-24 18:37:37,831 INFO L87 Difference]: Start difference. First operand 1386 states and 1953 transitions. Second operand has 16 states, 14 states have (on average 5.857142857142857) internal successors, (82), 16 states have internal predecessors, (82), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-24 18:37:40,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:37:40,157 INFO L93 Difference]: Finished difference Result 1410 states and 1991 transitions. [2024-10-24 18:37:40,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-24 18:37:40,159 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 5.857142857142857) internal successors, (82), 16 states have internal predecessors, (82), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 80 [2024-10-24 18:37:40,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:37:40,161 INFO L225 Difference]: With dead ends: 1410 [2024-10-24 18:37:40,162 INFO L226 Difference]: Without dead ends: 1406 [2024-10-24 18:37:40,162 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=248, Invalid=454, Unknown=0, NotChecked=0, Total=702 [2024-10-24 18:37:40,163 INFO L432 NwaCegarLoop]: 741 mSDtfsCounter, 32 mSDsluCounter, 5890 mSDsCounter, 0 mSdLazyCounter, 979 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 6631 SdHoareTripleChecker+Invalid, 1002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-24 18:37:40,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 6631 Invalid, 1002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 979 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-24 18:37:40,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1406 states. [2024-10-24 18:37:40,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1406 to 1404. [2024-10-24 18:37:40,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 982 states have (on average 1.9490835030549898) internal successors, (1914), 1366 states have internal predecessors, (1914), 32 states have call successors, (32), 16 states have call predecessors, (32), 16 states have return successors, (31), 24 states have call predecessors, (31), 28 states have call successors, (31) [2024-10-24 18:37:40,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 1977 transitions. [2024-10-24 18:37:40,181 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 1977 transitions. Word has length 80 [2024-10-24 18:37:40,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:37:40,181 INFO L471 AbstractCegarLoop]: Abstraction has 1404 states and 1977 transitions. [2024-10-24 18:37:40,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 5.857142857142857) internal successors, (82), 16 states have internal predecessors, (82), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-24 18:37:40,181 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 1977 transitions. [2024-10-24 18:37:40,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-24 18:37:40,182 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:37:40,182 INFO L215 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:37:40,195 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2024-10-24 18:37:40,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:37:40,383 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-24 18:37:40,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:37:40,383 INFO L85 PathProgramCache]: Analyzing trace with hash 680455018, now seen corresponding path program 3 times [2024-10-24 18:37:40,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:37:40,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [142487502] [2024-10-24 18:37:40,384 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-24 18:37:40,384 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:37:40,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:37:40,385 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:37:40,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2024-10-24 18:37:41,160 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-10-24 18:37:41,160 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 18:37:41,174 INFO L255 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-24 18:37:41,176 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:37:41,356 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:37:41,356 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 18:37:42,005 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:37:42,006 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:37:42,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [142487502] [2024-10-24 18:37:42,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [142487502] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 18:37:42,006 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 18:37:42,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2024-10-24 18:37:42,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91263939] [2024-10-24 18:37:42,006 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 18:37:42,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-10-24 18:37:42,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:37:42,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-10-24 18:37:42,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=534, Unknown=0, NotChecked=0, Total=756 [2024-10-24 18:37:42,009 INFO L87 Difference]: Start difference. First operand 1404 states and 1977 transitions. Second operand has 28 states, 26 states have (on average 3.6153846153846154) internal successors, (94), 28 states have internal predecessors, (94), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-24 18:37:47,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:37:47,931 INFO L93 Difference]: Finished difference Result 1446 states and 2049 transitions. [2024-10-24 18:37:47,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-10-24 18:37:47,931 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 26 states have (on average 3.6153846153846154) internal successors, (94), 28 states have internal predecessors, (94), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 86 [2024-10-24 18:37:47,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:37:47,934 INFO L225 Difference]: With dead ends: 1446 [2024-10-24 18:37:47,934 INFO L226 Difference]: Without dead ends: 1440 [2024-10-24 18:37:47,935 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=854, Invalid=1696, Unknown=0, NotChecked=0, Total=2550 [2024-10-24 18:37:47,935 INFO L432 NwaCegarLoop]: 741 mSDtfsCounter, 65 mSDsluCounter, 11047 mSDsCounter, 0 mSdLazyCounter, 2046 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 11788 SdHoareTripleChecker+Invalid, 2087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-10-24 18:37:47,936 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 11788 Invalid, 2087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2046 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-10-24 18:37:47,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1440 states. [2024-10-24 18:37:47,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1440 to 1440. [2024-10-24 18:37:47,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1440 states, 1018 states have (on average 1.925343811394892) internal successors, (1960), 1402 states have internal predecessors, (1960), 32 states have call successors, (32), 16 states have call predecessors, (32), 16 states have return successors, (31), 24 states have call predecessors, (31), 28 states have call successors, (31) [2024-10-24 18:37:47,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 2023 transitions. [2024-10-24 18:37:47,952 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 2023 transitions. Word has length 86 [2024-10-24 18:37:47,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:37:47,952 INFO L471 AbstractCegarLoop]: Abstraction has 1440 states and 2023 transitions. [2024-10-24 18:37:47,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 26 states have (on average 3.6153846153846154) internal successors, (94), 28 states have internal predecessors, (94), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-24 18:37:47,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 2023 transitions. [2024-10-24 18:37:47,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-10-24 18:37:47,953 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:37:47,953 INFO L215 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:37:47,965 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2024-10-24 18:37:48,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:37:48,156 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-10-24 18:37:48,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:37:48,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1913886614, now seen corresponding path program 4 times [2024-10-24 18:37:48,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:37:48,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [817213395] [2024-10-24 18:37:48,157 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-24 18:37:48,158 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:37:48,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:37:48,159 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 18:37:48,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process