./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_SAX_test5-3.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_SAX_test5-3.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 cb182062e759f3e947e2f86847df2222bda90081d4cc013a50b9baa2d9844063 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 18:43:34,073 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 18:43:34,135 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-24 18:43:34,139 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 18:43:34,140 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 18:43:34,166 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 18:43:34,167 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 18:43:34,168 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 18:43:34,168 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 18:43:34,169 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 18:43:34,170 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 18:43:34,170 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 18:43:34,171 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 18:43:34,171 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 18:43:34,174 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 18:43:34,174 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 18:43:34,174 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 18:43:34,174 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 18:43:34,175 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 18:43:34,175 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 18:43:34,175 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 18:43:34,175 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 18:43:34,175 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-24 18:43:34,176 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 18:43:34,176 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 18:43:34,176 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 18:43:34,176 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 18:43:34,176 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 18:43:34,176 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 18:43:34,177 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 18:43:34,177 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 18:43:34,177 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 18:43:34,177 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 18:43:34,177 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 18:43:34,178 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 18:43:34,178 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 18:43:34,178 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 18:43:34,178 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 18:43:34,178 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 18:43:34,178 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 18:43:34,179 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 18:43:34,181 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 18:43:34,181 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb182062e759f3e947e2f86847df2222bda90081d4cc013a50b9baa2d9844063 [2024-10-24 18:43:34,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 18:43:34,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 18:43:34,454 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 18:43:34,456 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 18:43:34,456 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 18:43:34,457 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i [2024-10-24 18:43:35,797 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 18:43:36,095 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 18:43:36,096 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i [2024-10-24 18:43:36,120 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f4ea3239/eacad6a9ac984fa39da18ff2b1d05617/FLAG9a8dff771 [2024-10-24 18:43:36,139 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f4ea3239/eacad6a9ac984fa39da18ff2b1d05617 [2024-10-24 18:43:36,141 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 18:43:36,142 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 18:43:36,143 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 18:43:36,143 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 18:43:36,147 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 18:43:36,148 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:43:36" (1/1) ... [2024-10-24 18:43:36,149 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d2d5dbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:43:36, skipping insertion in model container [2024-10-24 18:43:36,150 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:43:36" (1/1) ... [2024-10-24 18:43:36,193 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 18:43:36,732 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 18:43:36,748 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 18:43:36,749 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@34cac0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:43:36, skipping insertion in model container [2024-10-24 18:43:36,749 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 18:43:36,749 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-10-24 18:43:36,751 INFO L158 Benchmark]: Toolchain (without parser) took 608.44ms. Allocated memory is still 146.8MB. Free memory was 77.4MB in the beginning and 98.6MB in the end (delta: -21.2MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2024-10-24 18:43:36,751 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 146.8MB. Free memory is still 104.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 18:43:36,751 INFO L158 Benchmark]: CACSL2BoogieTranslator took 606.38ms. Allocated memory is still 146.8MB. Free memory was 77.1MB in the beginning and 98.6MB in the end (delta: -21.5MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2024-10-24 18:43:36,752 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 146.8MB. Free memory is still 104.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 606.38ms. Allocated memory is still 146.8MB. Free memory was 77.1MB in the beginning and 98.6MB in the end (delta: -21.5MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 737]: 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_SAX_test5-3.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 cb182062e759f3e947e2f86847df2222bda90081d4cc013a50b9baa2d9844063 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 18:43:38,982 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 18:43:39,050 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-10-24 18:43:39,056 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 18:43:39,057 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 18:43:39,084 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 18:43:39,085 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 18:43:39,085 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 18:43:39,085 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 18:43:39,085 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 18:43:39,086 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 18:43:39,086 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 18:43:39,086 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 18:43:39,086 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 18:43:39,087 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 18:43:39,087 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 18:43:39,087 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 18:43:39,088 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 18:43:39,088 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 18:43:39,088 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 18:43:39,088 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 18:43:39,089 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 18:43:39,089 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-24 18:43:39,089 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 18:43:39,089 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 18:43:39,090 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-24 18:43:39,090 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 18:43:39,090 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-24 18:43:39,090 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 18:43:39,091 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 18:43:39,091 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 18:43:39,091 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 18:43:39,091 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 18:43:39,091 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 18:43:39,092 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 18:43:39,092 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 18:43:39,092 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 18:43:39,092 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 18:43:39,093 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-24 18:43:39,093 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-24 18:43:39,093 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 18:43:39,093 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 18:43:39,093 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 18:43:39,094 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 18:43:39,094 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-24 18:43:39,094 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb182062e759f3e947e2f86847df2222bda90081d4cc013a50b9baa2d9844063 [2024-10-24 18:43:39,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 18:43:39,380 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 18:43:39,383 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 18:43:39,384 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 18:43:39,385 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 18:43:39,387 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i [2024-10-24 18:43:40,733 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 18:43:40,993 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 18:43:40,993 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i [2024-10-24 18:43:41,006 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41b9e9171/a9a32b0a09b0468b808284468ef8a8ae/FLAGee0de5ca4 [2024-10-24 18:43:41,305 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41b9e9171/a9a32b0a09b0468b808284468ef8a8ae [2024-10-24 18:43:41,307 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 18:43:41,308 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 18:43:41,309 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 18:43:41,309 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 18:43:41,313 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 18:43:41,314 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:43:41" (1/1) ... [2024-10-24 18:43:41,315 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e215769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:43:41, skipping insertion in model container [2024-10-24 18:43:41,315 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:43:41" (1/1) ... [2024-10-24 18:43:41,360 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 18:43:41,859 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 18:43:41,875 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-10-24 18:43:41,883 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 18:43:42,000 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 18:43:42,006 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 18:43:42,090 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 18:43:42,123 INFO L204 MainTranslator]: Completed translation [2024-10-24 18:43:42,124 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:43:42 WrapperNode [2024-10-24 18:43:42,124 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 18:43:42,125 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 18:43:42,126 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 18:43:42,126 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 18:43:42,132 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:43:42" (1/1) ... [2024-10-24 18:43:42,182 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:43:42" (1/1) ... [2024-10-24 18:43:42,271 INFO L138 Inliner]: procedures = 180, calls = 474, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1759 [2024-10-24 18:43:42,275 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 18:43:42,276 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 18:43:42,276 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 18:43:42,276 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 18:43:42,288 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:43:42" (1/1) ... [2024-10-24 18:43:42,288 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:43:42" (1/1) ... [2024-10-24 18:43:42,299 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:43:42" (1/1) ... [2024-10-24 18:43:42,442 INFO L175 MemorySlicer]: Split 443 memory accesses to 3 slices as follows [2, 417, 24]. 94 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 99 writes are split as follows [0, 98, 1]. [2024-10-24 18:43:42,442 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:43:42" (1/1) ... [2024-10-24 18:43:42,442 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:43:42" (1/1) ... [2024-10-24 18:43:42,500 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:43:42" (1/1) ... [2024-10-24 18:43:42,515 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:43:42" (1/1) ... [2024-10-24 18:43:42,532 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:43:42" (1/1) ... [2024-10-24 18:43:42,540 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:43:42" (1/1) ... [2024-10-24 18:43:42,558 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 18:43:42,559 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 18:43:42,559 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 18:43:42,559 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 18:43:42,560 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:43:42" (1/1) ... [2024-10-24 18:43:42,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 18:43:42,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 18:43:42,608 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 18:43:42,615 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 18:43:42,654 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-10-24 18:43:42,655 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-10-24 18:43:42,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-10-24 18:43:42,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-10-24 18:43:42,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-10-24 18:43:42,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-24 18:43:42,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-24 18:43:42,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-24 18:43:42,656 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-24 18:43:42,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-24 18:43:42,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-10-24 18:43:42,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-10-24 18:43:42,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-10-24 18:43:42,657 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-10-24 18:43:42,657 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-10-24 18:43:42,658 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-10-24 18:43:42,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-24 18:43:42,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 18:43:42,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-24 18:43:42,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-24 18:43:42,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-24 18:43:42,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-24 18:43:42,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-24 18:43:42,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-24 18:43:42,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-24 18:43:42,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 18:43:42,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-24 18:43:42,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-24 18:43:42,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-24 18:43:42,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-24 18:43:42,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-24 18:43:42,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-24 18:43:42,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 18:43:42,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 18:43:42,899 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 18:43:42,901 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 18:43:42,917 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-24 18:43:42,938 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-24 18:43:42,972 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-24 18:43:47,195 INFO L? ?]: Removed 1907 outVars from TransFormulas that were not future-live. [2024-10-24 18:43:47,195 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 18:43:47,384 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 18:43:47,385 INFO L314 CfgBuilder]: Removed 100 assume(true) statements. [2024-10-24 18:43:47,385 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:43:47 BoogieIcfgContainer [2024-10-24 18:43:47,385 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 18:43:47,387 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 18:43:47,387 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 18:43:47,389 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 18:43:47,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:43:41" (1/3) ... [2024-10-24 18:43:47,390 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a352677 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:43:47, skipping insertion in model container [2024-10-24 18:43:47,390 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:43:42" (2/3) ... [2024-10-24 18:43:47,390 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a352677 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:43:47, skipping insertion in model container [2024-10-24 18:43:47,390 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:43:47" (3/3) ... [2024-10-24 18:43:47,391 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test5-3.i [2024-10-24 18:43:47,403 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 18:43:47,403 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 915 error locations. [2024-10-24 18:43:47,451 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 18:43:47,458 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;@317458b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 18:43:47,458 INFO L334 AbstractCegarLoop]: Starting to check reachability of 915 error locations. [2024-10-24 18:43:47,464 INFO L276 IsEmpty]: Start isEmpty. Operand has 1652 states, 726 states have (on average 2.5303030303030303) internal successors, (1837), 1642 states have internal predecessors, (1837), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-24 18:43:47,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-24 18:43:47,468 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:43:47,469 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-24 18:43:47,469 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-10-24 18:43:47,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:43:47,473 INFO L85 PathProgramCache]: Analyzing trace with hash 86499261, now seen corresponding path program 1 times [2024-10-24 18:43:47,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:43:47,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [869632856] [2024-10-24 18:43:47,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:43:47,484 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 18:43:47,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:43:47,492 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 18:43:47,497 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 18:43:47,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:43:47,638 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-24 18:43:47,641 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:43:47,646 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 18:43:47,646 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:43:47,647 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:43:47,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [869632856] [2024-10-24 18:43:47,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [869632856] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:43:47,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:43:47,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 18:43:47,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143960051] [2024-10-24 18:43:47,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:43:47,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 18:43:47,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:43:47,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 18:43:47,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 18:43:47,675 INFO L87 Difference]: Start difference. First operand has 1652 states, 726 states have (on average 2.5303030303030303) internal successors, (1837), 1642 states have internal predecessors, (1837), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 18:43:48,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:43:48,673 INFO L93 Difference]: Finished difference Result 1632 states and 1733 transitions. [2024-10-24 18:43:48,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 18:43:48,677 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2024-10-24 18:43:48,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:43:48,695 INFO L225 Difference]: With dead ends: 1632 [2024-10-24 18:43:48,695 INFO L226 Difference]: Without dead ends: 1631 [2024-10-24 18:43:48,697 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 18:43:48,699 INFO L432 NwaCegarLoop]: 1561 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1561 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 18:43:48,700 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1561 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 18:43:48,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2024-10-24 18:43:48,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1631. [2024-10-24 18:43:48,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1631 states, 717 states have (on average 2.382147838214784) internal successors, (1708), 1621 states have internal predecessors, (1708), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-24 18:43:48,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1631 states to 1631 states and 1732 transitions. [2024-10-24 18:43:48,789 INFO L78 Accepts]: Start accepts. Automaton has 1631 states and 1732 transitions. Word has length 4 [2024-10-24 18:43:48,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:43:48,789 INFO L471 AbstractCegarLoop]: Abstraction has 1631 states and 1732 transitions. [2024-10-24 18:43:48,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 18:43:48,790 INFO L276 IsEmpty]: Start isEmpty. Operand 1631 states and 1732 transitions. [2024-10-24 18:43:48,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-24 18:43:48,790 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:43:48,790 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-24 18:43:48,798 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 18:43:48,997 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 18:43:48,998 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-10-24 18:43:48,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:43:48,999 INFO L85 PathProgramCache]: Analyzing trace with hash 86499323, now seen corresponding path program 1 times [2024-10-24 18:43:49,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:43:49,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [949737681] [2024-10-24 18:43:49,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:43:49,000 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 18:43:49,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:43:49,003 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 18:43:49,006 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 18:43:49,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:43:49,141 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 18:43:49,143 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:43:49,172 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 18:43:49,185 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 18:43:49,186 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:43:49,186 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:43:49,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [949737681] [2024-10-24 18:43:49,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [949737681] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:43:49,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:43:49,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 18:43:49,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323947063] [2024-10-24 18:43:49,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:43:49,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 18:43:49,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:43:49,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 18:43:49,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:43:49,189 INFO L87 Difference]: Start difference. First operand 1631 states and 1732 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 18:43:52,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:43:52,038 INFO L93 Difference]: Finished difference Result 1746 states and 1879 transitions. [2024-10-24 18:43:52,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 18:43:52,039 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2024-10-24 18:43:52,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:43:52,050 INFO L225 Difference]: With dead ends: 1746 [2024-10-24 18:43:52,054 INFO L226 Difference]: Without dead ends: 1746 [2024-10-24 18:43:52,054 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 18:43:52,056 INFO L432 NwaCegarLoop]: 1122 mSDtfsCounter, 1129 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 1165 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1140 SdHoareTripleChecker+Valid, 1439 SdHoareTripleChecker+Invalid, 1264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-10-24 18:43:52,057 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1140 Valid, 1439 Invalid, 1264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1165 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-10-24 18:43:52,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1746 states. [2024-10-24 18:43:52,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1746 to 1539. [2024-10-24 18:43:52,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1539 states, 717 states have (on average 2.2538354253835426) internal successors, (1616), 1529 states have internal predecessors, (1616), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-24 18:43:52,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1539 states to 1539 states and 1640 transitions. [2024-10-24 18:43:52,139 INFO L78 Accepts]: Start accepts. Automaton has 1539 states and 1640 transitions. Word has length 4 [2024-10-24 18:43:52,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:43:52,140 INFO L471 AbstractCegarLoop]: Abstraction has 1539 states and 1640 transitions. [2024-10-24 18:43:52,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 18:43:52,141 INFO L276 IsEmpty]: Start isEmpty. Operand 1539 states and 1640 transitions. [2024-10-24 18:43:52,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-24 18:43:52,141 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:43:52,141 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-24 18:43:52,145 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 18:43:52,342 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 18:43:52,342 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-10-24 18:43:52,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:43:52,347 INFO L85 PathProgramCache]: Analyzing trace with hash 86499324, now seen corresponding path program 1 times [2024-10-24 18:43:52,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:43:52,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [163848753] [2024-10-24 18:43:52,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:43:52,348 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 18:43:52,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:43:52,353 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 18:43:52,354 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 18:43:52,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:43:52,670 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 18:43:52,677 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:43:52,691 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 18:43:52,732 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 18:43:52,732 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:43:52,733 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:43:52,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [163848753] [2024-10-24 18:43:52,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [163848753] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:43:52,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:43:52,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 18:43:52,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133813646] [2024-10-24 18:43:52,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:43:52,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 18:43:52,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:43:52,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 18:43:52,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:43:52,734 INFO L87 Difference]: Start difference. First operand 1539 states and 1640 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 18:43:56,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:43:56,088 INFO L93 Difference]: Finished difference Result 2024 states and 2176 transitions. [2024-10-24 18:43:56,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 18:43:56,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2024-10-24 18:43:56,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:43:56,094 INFO L225 Difference]: With dead ends: 2024 [2024-10-24 18:43:56,094 INFO L226 Difference]: Without dead ends: 2024 [2024-10-24 18:43:56,095 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 18:43:56,095 INFO L432 NwaCegarLoop]: 1428 mSDtfsCounter, 689 mSDsluCounter, 658 mSDsCounter, 0 mSdLazyCounter, 1258 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 2086 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-10-24 18:43:56,096 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 2086 Invalid, 1283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1258 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-10-24 18:43:56,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2024 states. [2024-10-24 18:43:56,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2024 to 1668. [2024-10-24 18:43:56,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1668 states, 856 states have (on average 2.217289719626168) internal successors, (1898), 1658 states have internal predecessors, (1898), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-24 18:43:56,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1668 states to 1668 states and 1922 transitions. [2024-10-24 18:43:56,120 INFO L78 Accepts]: Start accepts. Automaton has 1668 states and 1922 transitions. Word has length 4 [2024-10-24 18:43:56,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:43:56,120 INFO L471 AbstractCegarLoop]: Abstraction has 1668 states and 1922 transitions. [2024-10-24 18:43:56,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 18:43:56,121 INFO L276 IsEmpty]: Start isEmpty. Operand 1668 states and 1922 transitions. [2024-10-24 18:43:56,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-24 18:43:56,121 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:43:56,121 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-24 18:43:56,125 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-10-24 18:43:56,324 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 18:43:56,326 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr620REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-10-24 18:43:56,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:43:56,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1611828766, now seen corresponding path program 1 times [2024-10-24 18:43:56,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:43:56,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1056802416] [2024-10-24 18:43:56,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:43:56,327 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 18:43:56,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:43:56,330 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 18:43:56,331 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 18:43:56,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:43:56,453 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 18:43:56,455 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:43:56,460 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 18:43:56,461 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:43:56,461 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:43:56,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1056802416] [2024-10-24 18:43:56,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1056802416] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:43:56,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:43:56,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 18:43:56,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57062990] [2024-10-24 18:43:56,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:43:56,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 18:43:56,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:43:56,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 18:43:56,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:43:56,463 INFO L87 Difference]: Start difference. First operand 1668 states and 1922 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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 18:43:57,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:43:57,782 INFO L93 Difference]: Finished difference Result 2972 states and 3461 transitions. [2024-10-24 18:43:57,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 18:43:57,786 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2024-10-24 18:43:57,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:43:57,794 INFO L225 Difference]: With dead ends: 2972 [2024-10-24 18:43:57,795 INFO L226 Difference]: Without dead ends: 2972 [2024-10-24 18:43:57,795 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 18:43:57,796 INFO L432 NwaCegarLoop]: 1843 mSDtfsCounter, 1222 mSDsluCounter, 1450 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1233 SdHoareTripleChecker+Valid, 3293 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 18:43:57,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1233 Valid, 3293 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 18:43:57,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2972 states. [2024-10-24 18:43:57,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2972 to 1670. [2024-10-24 18:43:57,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1670 states, 858 states have (on average 2.2144522144522143) internal successors, (1900), 1660 states have internal predecessors, (1900), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-24 18:43:57,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1670 states to 1670 states and 1924 transitions. [2024-10-24 18:43:57,825 INFO L78 Accepts]: Start accepts. Automaton has 1670 states and 1924 transitions. Word has length 5 [2024-10-24 18:43:57,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:43:57,825 INFO L471 AbstractCegarLoop]: Abstraction has 1670 states and 1924 transitions. [2024-10-24 18:43:57,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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 18:43:57,826 INFO L276 IsEmpty]: Start isEmpty. Operand 1670 states and 1924 transitions. [2024-10-24 18:43:57,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-24 18:43:57,826 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:43:57,826 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:43:57,831 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 18:43:58,027 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 18:43:58,027 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-10-24 18:43:58,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:43:58,028 INFO L85 PathProgramCache]: Analyzing trace with hash -445473339, now seen corresponding path program 1 times [2024-10-24 18:43:58,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:43:58,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [106430408] [2024-10-24 18:43:58,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:43:58,029 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 18:43:58,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:43:58,032 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 18:43:58,033 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 18:43:58,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:43:58,171 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 18:43:58,173 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:43:58,179 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 18:43:58,180 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:43:58,180 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:43:58,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [106430408] [2024-10-24 18:43:58,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [106430408] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:43:58,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:43:58,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 18:43:58,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894507121] [2024-10-24 18:43:58,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:43:58,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 18:43:58,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:43:58,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 18:43:58,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:43:58,181 INFO L87 Difference]: Start difference. First operand 1670 states and 1924 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 18:43:59,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:43:59,038 INFO L93 Difference]: Finished difference Result 1631 states and 1884 transitions. [2024-10-24 18:43:59,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 18:43:59,040 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2024-10-24 18:43:59,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:43:59,044 INFO L225 Difference]: With dead ends: 1631 [2024-10-24 18:43:59,044 INFO L226 Difference]: Without dead ends: 1631 [2024-10-24 18:43:59,044 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 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 18:43:59,045 INFO L432 NwaCegarLoop]: 1410 mSDtfsCounter, 61 mSDsluCounter, 1368 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 2778 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 18:43:59,045 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 2778 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 18:43:59,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2024-10-24 18:43:59,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1631. [2024-10-24 18:43:59,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1631 states, 843 states have (on average 2.206405693950178) internal successors, (1860), 1621 states have internal predecessors, (1860), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-24 18:43:59,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1631 states to 1631 states and 1884 transitions. [2024-10-24 18:43:59,065 INFO L78 Accepts]: Start accepts. Automaton has 1631 states and 1884 transitions. Word has length 10 [2024-10-24 18:43:59,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:43:59,066 INFO L471 AbstractCegarLoop]: Abstraction has 1631 states and 1884 transitions. [2024-10-24 18:43:59,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 18:43:59,066 INFO L276 IsEmpty]: Start isEmpty. Operand 1631 states and 1884 transitions. [2024-10-24 18:43:59,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-24 18:43:59,066 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:43:59,067 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:43:59,072 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-10-24 18:43:59,267 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 18:43:59,268 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-10-24 18:43:59,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:43:59,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1396847519, now seen corresponding path program 1 times [2024-10-24 18:43:59,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:43:59,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [376912273] [2024-10-24 18:43:59,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:43:59,269 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 18:43:59,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:43:59,273 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 18:43:59,275 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 18:43:59,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:43:59,429 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 18:43:59,431 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:43:59,444 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 18:43:59,444 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:43:59,445 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:43:59,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [376912273] [2024-10-24 18:43:59,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [376912273] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:43:59,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:43:59,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 18:43:59,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107580164] [2024-10-24 18:43:59,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:43:59,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 18:43:59,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:43:59,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 18:43:59,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 18:43:59,447 INFO L87 Difference]: Start difference. First operand 1631 states and 1884 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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 18:44:00,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:44:00,519 INFO L93 Difference]: Finished difference Result 1616 states and 1862 transitions. [2024-10-24 18:44:00,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 18:44:00,521 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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 18:44:00,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:44:00,525 INFO L225 Difference]: With dead ends: 1616 [2024-10-24 18:44:00,525 INFO L226 Difference]: Without dead ends: 1616 [2024-10-24 18:44:00,525 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 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 18:44:00,526 INFO L432 NwaCegarLoop]: 1379 mSDtfsCounter, 45 mSDsluCounter, 2740 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 4119 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 18:44:00,527 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 4119 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 18:44:00,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2024-10-24 18:44:00,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 1616. [2024-10-24 18:44:00,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1616 states, 842 states have (on average 2.182897862232779) internal successors, (1838), 1606 states have internal predecessors, (1838), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-24 18:44:00,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1616 states to 1616 states and 1862 transitions. [2024-10-24 18:44:00,567 INFO L78 Accepts]: Start accepts. Automaton has 1616 states and 1862 transitions. Word has length 12 [2024-10-24 18:44:00,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:44:00,567 INFO L471 AbstractCegarLoop]: Abstraction has 1616 states and 1862 transitions. [2024-10-24 18:44:00,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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 18:44:00,571 INFO L276 IsEmpty]: Start isEmpty. Operand 1616 states and 1862 transitions. [2024-10-24 18:44:00,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-24 18:44:00,572 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:44:00,572 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] [2024-10-24 18:44:00,576 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 18:44:00,772 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 18:44:00,773 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-10-24 18:44:00,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:44:00,773 INFO L85 PathProgramCache]: Analyzing trace with hash 109292173, now seen corresponding path program 1 times [2024-10-24 18:44:00,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:44:00,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [339889265] [2024-10-24 18:44:00,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:44:00,774 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 18:44:00,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:44:00,778 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 18:44:00,780 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 18:44:00,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:44:00,927 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 18:44:00,929 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:44:00,934 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 18:44:00,994 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 18:44:00,995 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:44:00,995 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:44:00,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [339889265] [2024-10-24 18:44:00,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [339889265] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:44:00,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:44:00,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 18:44:00,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871409739] [2024-10-24 18:44:00,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:44:00,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 18:44:00,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:44:00,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 18:44:00,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 18:44:00,996 INFO L87 Difference]: Start difference. First operand 1616 states and 1862 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 18:44:03,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:44:03,529 INFO L93 Difference]: Finished difference Result 1616 states and 1862 transitions. [2024-10-24 18:44:03,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 18:44:03,530 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 26 [2024-10-24 18:44:03,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:44:03,534 INFO L225 Difference]: With dead ends: 1616 [2024-10-24 18:44:03,534 INFO L226 Difference]: Without dead ends: 1616 [2024-10-24 18:44:03,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 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 18:44:03,535 INFO L432 NwaCegarLoop]: 874 mSDtfsCounter, 1073 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 1871 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1084 SdHoareTripleChecker+Valid, 1696 SdHoareTripleChecker+Invalid, 1882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-24 18:44:03,535 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1084 Valid, 1696 Invalid, 1882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1871 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-24 18:44:03,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2024-10-24 18:44:03,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 1612. [2024-10-24 18:44:03,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1612 states, 842 states have (on average 2.178147268408551) internal successors, (1834), 1602 states have internal predecessors, (1834), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-24 18:44:03,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1612 states to 1612 states and 1858 transitions. [2024-10-24 18:44:03,560 INFO L78 Accepts]: Start accepts. Automaton has 1612 states and 1858 transitions. Word has length 26 [2024-10-24 18:44:03,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:44:03,561 INFO L471 AbstractCegarLoop]: Abstraction has 1612 states and 1858 transitions. [2024-10-24 18:44:03,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 18:44:03,561 INFO L276 IsEmpty]: Start isEmpty. Operand 1612 states and 1858 transitions. [2024-10-24 18:44:03,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-24 18:44:03,561 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:44:03,561 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] [2024-10-24 18:44:03,567 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 18:44:03,765 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 18:44:03,765 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-10-24 18:44:03,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:44:03,766 INFO L85 PathProgramCache]: Analyzing trace with hash 109292174, now seen corresponding path program 1 times [2024-10-24 18:44:03,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:44:03,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1934370600] [2024-10-24 18:44:03,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:44:03,767 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 18:44:03,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:44:03,768 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 18:44:03,770 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 18:44:03,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:44:03,927 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 18:44:03,929 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:44:03,941 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 18:44:04,126 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 18:44:04,127 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:44:04,127 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:44:04,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1934370600] [2024-10-24 18:44:04,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1934370600] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:44:04,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:44:04,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 18:44:04,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099776145] [2024-10-24 18:44:04,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:44:04,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 18:44:04,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:44:04,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 18:44:04,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 18:44:04,128 INFO L87 Difference]: Start difference. First operand 1612 states and 1858 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 18:44:07,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:44:07,782 INFO L93 Difference]: Finished difference Result 1969 states and 2113 transitions. [2024-10-24 18:44:07,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 18:44:07,783 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 26 [2024-10-24 18:44:07,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:44:07,788 INFO L225 Difference]: With dead ends: 1969 [2024-10-24 18:44:07,788 INFO L226 Difference]: Without dead ends: 1969 [2024-10-24 18:44:07,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 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 18:44:07,789 INFO L432 NwaCegarLoop]: 1178 mSDtfsCounter, 629 mSDsluCounter, 1332 mSDsCounter, 0 mSdLazyCounter, 2038 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 2510 SdHoareTripleChecker+Invalid, 2041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-10-24 18:44:07,789 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [634 Valid, 2510 Invalid, 2041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2038 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-10-24 18:44:07,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2024-10-24 18:44:07,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1608. [2024-10-24 18:44:07,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1608 states, 842 states have (on average 2.173396674584323) internal successors, (1830), 1598 states have internal predecessors, (1830), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-24 18:44:07,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1608 states to 1608 states and 1854 transitions. [2024-10-24 18:44:07,836 INFO L78 Accepts]: Start accepts. Automaton has 1608 states and 1854 transitions. Word has length 26 [2024-10-24 18:44:07,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:44:07,837 INFO L471 AbstractCegarLoop]: Abstraction has 1608 states and 1854 transitions. [2024-10-24 18:44:07,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 18:44:07,840 INFO L276 IsEmpty]: Start isEmpty. Operand 1608 states and 1854 transitions. [2024-10-24 18:44:07,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-24 18:44:07,841 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:44:07,842 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] [2024-10-24 18:44:07,854 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 18:44:08,042 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 18:44:08,043 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-10-24 18:44:08,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:44:08,043 INFO L85 PathProgramCache]: Analyzing trace with hash -898285561, now seen corresponding path program 1 times [2024-10-24 18:44:08,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:44:08,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [263535092] [2024-10-24 18:44:08,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:44:08,044 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 18:44:08,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:44:08,046 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 18:44:08,047 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 18:44:08,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:44:08,229 INFO L255 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 18:44:08,231 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:44:08,261 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 18:44:08,262 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:44:08,262 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:44:08,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [263535092] [2024-10-24 18:44:08,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [263535092] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:44:08,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:44:08,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 18:44:08,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488723276] [2024-10-24 18:44:08,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:44:08,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 18:44:08,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:44:08,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 18:44:08,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 18:44:08,264 INFO L87 Difference]: Start difference. First operand 1608 states and 1854 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 18:44:09,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:44:09,352 INFO L93 Difference]: Finished difference Result 1602 states and 1844 transitions. [2024-10-24 18:44:09,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 18:44:09,354 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 42 [2024-10-24 18:44:09,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:44:09,357 INFO L225 Difference]: With dead ends: 1602 [2024-10-24 18:44:09,357 INFO L226 Difference]: Without dead ends: 1602 [2024-10-24 18:44:09,358 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 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 18:44:09,358 INFO L432 NwaCegarLoop]: 1373 mSDtfsCounter, 15 mSDsluCounter, 2729 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 4102 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 18:44:09,358 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 4102 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 18:44:09,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1602 states. [2024-10-24 18:44:09,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1602 to 1602. [2024-10-24 18:44:09,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1602 states, 836 states have (on average 2.1770334928229667) internal successors, (1820), 1592 states have internal predecessors, (1820), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-24 18:44:09,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1602 states to 1602 states and 1844 transitions. [2024-10-24 18:44:09,380 INFO L78 Accepts]: Start accepts. Automaton has 1602 states and 1844 transitions. Word has length 42 [2024-10-24 18:44:09,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:44:09,380 INFO L471 AbstractCegarLoop]: Abstraction has 1602 states and 1844 transitions. [2024-10-24 18:44:09,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 18:44:09,380 INFO L276 IsEmpty]: Start isEmpty. Operand 1602 states and 1844 transitions. [2024-10-24 18:44:09,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-10-24 18:44:09,384 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:44:09,384 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] [2024-10-24 18:44:09,393 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 18:44:09,588 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 18:44:09,589 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-10-24 18:44:09,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:44:09,590 INFO L85 PathProgramCache]: Analyzing trace with hash -507815065, now seen corresponding path program 1 times [2024-10-24 18:44:09,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:44:09,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [756186997] [2024-10-24 18:44:09,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:44:09,591 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 18:44:09,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:44:09,593 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 18:44:09,594 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 18:44:09,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:44:09,793 INFO L255 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 18:44:09,796 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:44:10,188 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 18:44:10,189 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:44:10,189 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:44:10,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [756186997] [2024-10-24 18:44:10,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [756186997] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:44:10,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:44:10,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 18:44:10,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486980971] [2024-10-24 18:44:10,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:44:10,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 18:44:10,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:44:10,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 18:44:10,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:44:10,191 INFO L87 Difference]: Start difference. First operand 1602 states and 1844 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 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 18:44:11,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:44:11,264 INFO L93 Difference]: Finished difference Result 1964 states and 2243 transitions. [2024-10-24 18:44:11,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 18:44:11,265 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 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 46 [2024-10-24 18:44:11,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:44:11,270 INFO L225 Difference]: With dead ends: 1964 [2024-10-24 18:44:11,270 INFO L226 Difference]: Without dead ends: 1964 [2024-10-24 18:44:11,270 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 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 18:44:11,270 INFO L432 NwaCegarLoop]: 1439 mSDtfsCounter, 334 mSDsluCounter, 1325 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 2764 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 18:44:11,271 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 2764 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 18:44:11,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1964 states. [2024-10-24 18:44:11,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1964 to 1645. [2024-10-24 18:44:11,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1645 states, 879 states have (on average 2.1194539249146755) internal successors, (1863), 1635 states have internal predecessors, (1863), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-24 18:44:11,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1645 states to 1645 states and 1887 transitions. [2024-10-24 18:44:11,295 INFO L78 Accepts]: Start accepts. Automaton has 1645 states and 1887 transitions. Word has length 46 [2024-10-24 18:44:11,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:44:11,296 INFO L471 AbstractCegarLoop]: Abstraction has 1645 states and 1887 transitions. [2024-10-24 18:44:11,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 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 18:44:11,296 INFO L276 IsEmpty]: Start isEmpty. Operand 1645 states and 1887 transitions. [2024-10-24 18:44:11,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-24 18:44:11,297 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:44:11,297 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] [2024-10-24 18:44:11,304 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-10-24 18:44:11,498 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 18:44:11,498 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-10-24 18:44:11,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:44:11,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1551239862, now seen corresponding path program 1 times [2024-10-24 18:44:11,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:44:11,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1031323822] [2024-10-24 18:44:11,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:44:11,499 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 18:44:11,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:44:11,502 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 18:44:11,502 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 18:44:11,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:44:11,768 INFO L255 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 18:44:11,771 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:44:11,779 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 18:44:11,786 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 18:44:12,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-24 18:44:12,134 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 18:44:12,148 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-24 18:44:12,148 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 18:44:12,161 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 18:44:12,162 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:44:12,162 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:44:12,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1031323822] [2024-10-24 18:44:12,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1031323822] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:44:12,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:44:12,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 18:44:12,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126647021] [2024-10-24 18:44:12,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:44:12,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 18:44:12,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:44:12,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 18:44:12,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 18:44:12,163 INFO L87 Difference]: Start difference. First operand 1645 states and 1887 transitions. Second operand has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 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 18:44:14,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:44:14,836 INFO L93 Difference]: Finished difference Result 1561 states and 1803 transitions. [2024-10-24 18:44:14,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 18:44:14,837 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 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 49 [2024-10-24 18:44:14,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:44:14,841 INFO L225 Difference]: With dead ends: 1561 [2024-10-24 18:44:14,841 INFO L226 Difference]: Without dead ends: 1561 [2024-10-24 18:44:14,841 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 46 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 18:44:14,841 INFO L432 NwaCegarLoop]: 632 mSDtfsCounter, 1007 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 1371 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1018 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 1462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-10-24 18:44:14,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1018 Valid, 886 Invalid, 1462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1371 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-10-24 18:44:14,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1561 states. [2024-10-24 18:44:14,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1561 to 1422. [2024-10-24 18:44:14,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1422 states, 740 states have (on average 2.0094594594594595) internal successors, (1487), 1412 states have internal predecessors, (1487), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-24 18:44:14,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1422 states to 1422 states and 1511 transitions. [2024-10-24 18:44:14,856 INFO L78 Accepts]: Start accepts. Automaton has 1422 states and 1511 transitions. Word has length 49 [2024-10-24 18:44:14,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:44:14,856 INFO L471 AbstractCegarLoop]: Abstraction has 1422 states and 1511 transitions. [2024-10-24 18:44:14,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 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 18:44:14,857 INFO L276 IsEmpty]: Start isEmpty. Operand 1422 states and 1511 transitions. [2024-10-24 18:44:14,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-24 18:44:14,857 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:44:14,857 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] [2024-10-24 18:44:14,867 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 18:44:15,058 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 18:44:15,058 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-10-24 18:44:15,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:44:15,059 INFO L85 PathProgramCache]: Analyzing trace with hash -961503950, now seen corresponding path program 1 times [2024-10-24 18:44:15,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:44:15,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2053137238] [2024-10-24 18:44:15,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:44:15,059 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 18:44:15,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:44:15,063 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 18:44:15,065 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 18:44:15,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:44:15,299 INFO L255 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-24 18:44:15,302 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:44:15,311 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 18:44:15,321 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 18:44:15,334 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 18:44:15,340 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 18:44:15,340 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:44:15,340 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:44:15,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2053137238] [2024-10-24 18:44:15,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2053137238] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:44:15,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:44:15,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 18:44:15,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680284927] [2024-10-24 18:44:15,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:44:15,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 18:44:15,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:44:15,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 18:44:15,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 18:44:15,342 INFO L87 Difference]: Start difference. First operand 1422 states and 1511 transitions. Second operand has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 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 18:44:18,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:44:18,261 INFO L93 Difference]: Finished difference Result 1421 states and 1510 transitions. [2024-10-24 18:44:18,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 18:44:18,261 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 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 53 [2024-10-24 18:44:18,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:44:18,265 INFO L225 Difference]: With dead ends: 1421 [2024-10-24 18:44:18,265 INFO L226 Difference]: Without dead ends: 1421 [2024-10-24 18:44:18,266 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 18:44:18,267 INFO L432 NwaCegarLoop]: 1301 mSDtfsCounter, 2 mSDsluCounter, 2078 mSDsCounter, 0 mSdLazyCounter, 2473 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3379 SdHoareTripleChecker+Invalid, 2474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-10-24 18:44:18,269 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3379 Invalid, 2474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2473 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-10-24 18:44:18,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1421 states. [2024-10-24 18:44:18,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1421 to 1421. [2024-10-24 18:44:18,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1421 states, 740 states have (on average 2.0081081081081082) internal successors, (1486), 1411 states have internal predecessors, (1486), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-24 18:44:18,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1421 states to 1421 states and 1510 transitions. [2024-10-24 18:44:18,284 INFO L78 Accepts]: Start accepts. Automaton has 1421 states and 1510 transitions. Word has length 53 [2024-10-24 18:44:18,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:44:18,285 INFO L471 AbstractCegarLoop]: Abstraction has 1421 states and 1510 transitions. [2024-10-24 18:44:18,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 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 18:44:18,285 INFO L276 IsEmpty]: Start isEmpty. Operand 1421 states and 1510 transitions. [2024-10-24 18:44:18,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-24 18:44:18,287 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:44:18,287 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] [2024-10-24 18:44:18,295 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-10-24 18:44:18,491 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 18:44:18,492 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr67REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-10-24 18:44:18,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:44:18,492 INFO L85 PathProgramCache]: Analyzing trace with hash -961503949, now seen corresponding path program 1 times [2024-10-24 18:44:18,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:44:18,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [661539784] [2024-10-24 18:44:18,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:44:18,493 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 18:44:18,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:44:18,496 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 18:44:18,496 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 18:44:18,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:44:18,708 INFO L255 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-24 18:44:18,711 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:44:18,738 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 18:44:18,758 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 18:44:18,769 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 18:44:18,806 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 18:44:18,831 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 18:44:18,832 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:44:18,832 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:44:18,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [661539784] [2024-10-24 18:44:18,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [661539784] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:44:18,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:44:18,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 18:44:18,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860191127] [2024-10-24 18:44:18,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:44:18,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 18:44:18,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:44:18,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 18:44:18,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 18:44:18,833 INFO L87 Difference]: Start difference. First operand 1421 states and 1510 transitions. Second operand has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 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 18:44:22,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:44:22,007 INFO L93 Difference]: Finished difference Result 1420 states and 1509 transitions. [2024-10-24 18:44:22,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 18:44:22,008 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 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 53 [2024-10-24 18:44:22,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:44:22,011 INFO L225 Difference]: With dead ends: 1420 [2024-10-24 18:44:22,012 INFO L226 Difference]: Without dead ends: 1420 [2024-10-24 18:44:22,012 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 18:44:22,012 INFO L432 NwaCegarLoop]: 1301 mSDtfsCounter, 1 mSDsluCounter, 2126 mSDsCounter, 0 mSdLazyCounter, 2422 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3427 SdHoareTripleChecker+Invalid, 2423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-10-24 18:44:22,012 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3427 Invalid, 2423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2422 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-10-24 18:44:22,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1420 states. [2024-10-24 18:44:22,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1420 to 1420. [2024-10-24 18:44:22,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1420 states, 739 states have (on average 2.009472259810555) internal successors, (1485), 1410 states have internal predecessors, (1485), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-24 18:44:22,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1420 states to 1420 states and 1509 transitions. [2024-10-24 18:44:22,038 INFO L78 Accepts]: Start accepts. Automaton has 1420 states and 1509 transitions. Word has length 53 [2024-10-24 18:44:22,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:44:22,038 INFO L471 AbstractCegarLoop]: Abstraction has 1420 states and 1509 transitions. [2024-10-24 18:44:22,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 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 18:44:22,038 INFO L276 IsEmpty]: Start isEmpty. Operand 1420 states and 1509 transitions. [2024-10-24 18:44:22,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-24 18:44:22,039 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:44:22,041 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 18:44:22,049 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-10-24 18:44:22,245 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 18:44:22,246 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-10-24 18:44:22,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:44:22,246 INFO L85 PathProgramCache]: Analyzing trace with hash 2102563286, now seen corresponding path program 1 times [2024-10-24 18:44:22,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:44:22,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1887414420] [2024-10-24 18:44:22,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:44:22,247 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 18:44:22,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:44:22,250 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 18:44:22,251 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 18:44:22,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:44:22,497 INFO L255 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 18:44:22,499 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:44:22,516 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 18:44:22,516 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:44:22,516 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:44:22,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1887414420] [2024-10-24 18:44:22,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1887414420] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:44:22,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:44:22,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 18:44:22,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130274569] [2024-10-24 18:44:22,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:44:22,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 18:44:22,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:44:22,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 18:44:22,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 18:44:22,518 INFO L87 Difference]: Start difference. First operand 1420 states and 1509 transitions. Second operand has 4 states, 3 states have (on average 19.0) 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 18:44:23,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:44:23,570 INFO L93 Difference]: Finished difference Result 1422 states and 1513 transitions. [2024-10-24 18:44:23,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 18:44:23,571 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.0) 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 18:44:23,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:44:23,575 INFO L225 Difference]: With dead ends: 1422 [2024-10-24 18:44:23,575 INFO L226 Difference]: Without dead ends: 1422 [2024-10-24 18:44:23,575 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 56 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 18:44:23,576 INFO L432 NwaCegarLoop]: 1300 mSDtfsCounter, 0 mSDsluCounter, 2594 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3894 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 18:44:23,576 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3894 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 18:44:23,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1422 states. [2024-10-24 18:44:23,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1422 to 1422. [2024-10-24 18:44:23,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1422 states, 740 states have (on average 2.0094594594594595) internal successors, (1487), 1412 states have internal predecessors, (1487), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2024-10-24 18:44:23,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1422 states to 1422 states and 1513 transitions. [2024-10-24 18:44:23,599 INFO L78 Accepts]: Start accepts. Automaton has 1422 states and 1513 transitions. Word has length 59 [2024-10-24 18:44:23,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:44:23,600 INFO L471 AbstractCegarLoop]: Abstraction has 1422 states and 1513 transitions. [2024-10-24 18:44:23,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.0) 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 18:44:23,600 INFO L276 IsEmpty]: Start isEmpty. Operand 1422 states and 1513 transitions. [2024-10-24 18:44:23,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-24 18:44:23,601 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:44:23,601 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] [2024-10-24 18:44:23,608 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 18:44:23,801 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 18:44:23,801 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-10-24 18:44:23,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:44:23,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1436189954, now seen corresponding path program 1 times [2024-10-24 18:44:23,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:44:23,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [182557061] [2024-10-24 18:44:23,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:44:23,803 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 18:44:23,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:44:23,805 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 18:44:23,806 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 (16)] Waiting until timeout for monitored process [2024-10-24 18:44:24,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:44:24,047 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 18:44:24,049 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:44:24,068 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 18:44:24,068 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 18:44:24,116 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 18:44:24,116 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:44:24,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [182557061] [2024-10-24 18:44:24,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [182557061] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 18:44:24,117 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 18:44:24,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-10-24 18:44:24,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094998489] [2024-10-24 18:44:24,117 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 18:44:24,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 18:44:24,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:44:24,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 18:44:24,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-24 18:44:24,118 INFO L87 Difference]: Start difference. First operand 1422 states and 1513 transitions. Second operand has 8 states, 6 states have (on average 10.166666666666666) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 18:44:25,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:44:25,428 INFO L93 Difference]: Finished difference Result 1431 states and 1528 transitions. [2024-10-24 18:44:25,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 18:44:25,428 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 10.166666666666666) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 60 [2024-10-24 18:44:25,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:44:25,432 INFO L225 Difference]: With dead ends: 1431 [2024-10-24 18:44:25,439 INFO L226 Difference]: Without dead ends: 1431 [2024-10-24 18:44:25,439 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-10-24 18:44:25,440 INFO L432 NwaCegarLoop]: 1298 mSDtfsCounter, 5 mSDsluCounter, 3884 mSDsCounter, 0 mSdLazyCounter, 703 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 5182 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 18:44:25,440 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 5182 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 703 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 18:44:25,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1431 states. [2024-10-24 18:44:25,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1431 to 1430. [2024-10-24 18:44:25,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1430 states, 747 states have (on average 2.0080321285140563) internal successors, (1500), 1419 states have internal predecessors, (1500), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2024-10-24 18:44:25,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1430 states to 1430 states and 1526 transitions. [2024-10-24 18:44:25,469 INFO L78 Accepts]: Start accepts. Automaton has 1430 states and 1526 transitions. Word has length 60 [2024-10-24 18:44:25,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:44:25,470 INFO L471 AbstractCegarLoop]: Abstraction has 1430 states and 1526 transitions. [2024-10-24 18:44:25,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 10.166666666666666) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 18:44:25,470 INFO L276 IsEmpty]: Start isEmpty. Operand 1430 states and 1526 transitions. [2024-10-24 18:44:25,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-24 18:44:25,471 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:44:25,471 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] [2024-10-24 18:44:25,486 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 (16)] Ended with exit code 0 [2024-10-24 18:44:25,672 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 18:44:25,674 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-10-24 18:44:25,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:44:25,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1229716694, now seen corresponding path program 2 times [2024-10-24 18:44:25,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:44:25,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [817995898] [2024-10-24 18:44:25,675 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 18:44:25,675 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 18:44:25,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:44:25,676 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 18:44:25,678 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 18:44:26,085 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 18:44:26,085 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 18:44:26,097 INFO L255 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-24 18:44:26,099 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:44:26,155 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 18:44:26,155 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 18:44:26,260 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 18:44:26,260 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:44:26,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [817995898] [2024-10-24 18:44:26,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [817995898] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 18:44:26,260 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 18:44:26,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-10-24 18:44:26,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222230963] [2024-10-24 18:44:26,261 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 18:44:26,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 18:44:26,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:44:26,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 18:44:26,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-10-24 18:44:26,262 INFO L87 Difference]: Start difference. First operand 1430 states and 1526 transitions. Second operand has 14 states, 12 states have (on average 5.583333333333333) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 18:44:28,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:44:28,184 INFO L93 Difference]: Finished difference Result 1442 states and 1546 transitions. [2024-10-24 18:44:28,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-24 18:44:28,185 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.583333333333333) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 63 [2024-10-24 18:44:28,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:44:28,195 INFO L225 Difference]: With dead ends: 1442 [2024-10-24 18:44:28,195 INFO L226 Difference]: Without dead ends: 1440 [2024-10-24 18:44:28,196 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2024-10-24 18:44:28,196 INFO L432 NwaCegarLoop]: 1298 mSDtfsCounter, 7 mSDsluCounter, 6480 mSDsCounter, 0 mSdLazyCounter, 1144 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 7778 SdHoareTripleChecker+Invalid, 1169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-24 18:44:28,196 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 7778 Invalid, 1169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1144 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-24 18:44:28,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1440 states. [2024-10-24 18:44:28,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1440 to 1439. [2024-10-24 18:44:28,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1439 states, 756 states have (on average 2.0) internal successors, (1512), 1428 states have internal predecessors, (1512), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2024-10-24 18:44:28,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1439 states to 1439 states and 1538 transitions. [2024-10-24 18:44:28,218 INFO L78 Accepts]: Start accepts. Automaton has 1439 states and 1538 transitions. Word has length 63 [2024-10-24 18:44:28,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:44:28,227 INFO L471 AbstractCegarLoop]: Abstraction has 1439 states and 1538 transitions. [2024-10-24 18:44:28,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.583333333333333) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 18:44:28,232 INFO L276 IsEmpty]: Start isEmpty. Operand 1439 states and 1538 transitions. [2024-10-24 18:44:28,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-24 18:44:28,233 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:44:28,233 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] [2024-10-24 18:44:28,251 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 18:44:28,433 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 18:44:28,434 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-10-24 18:44:28,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:44:28,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1583821482, now seen corresponding path program 3 times [2024-10-24 18:44:28,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:44:28,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [275763584] [2024-10-24 18:44:28,435 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-24 18:44:28,435 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 18:44:28,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:44:28,436 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 18:44:28,438 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 18:44:29,037 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-10-24 18:44:29,037 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 18:44:29,051 INFO L255 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-24 18:44:29,053 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:44:29,196 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 18:44:29,196 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 18:44:29,602 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 18:44:29,603 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:44:29,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [275763584] [2024-10-24 18:44:29,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [275763584] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 18:44:29,604 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 18:44:29,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-10-24 18:44:29,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205198710] [2024-10-24 18:44:29,604 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 18:44:29,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-24 18:44:29,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:44:29,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-24 18:44:29,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-10-24 18:44:29,606 INFO L87 Difference]: Start difference. First operand 1439 states and 1538 transitions. Second operand has 26 states, 24 states have (on average 3.2916666666666665) internal successors, (79), 26 states have internal predecessors, (79), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 18:44:35,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:44:35,041 INFO L93 Difference]: Finished difference Result 1460 states and 1574 transitions. [2024-10-24 18:44:35,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-10-24 18:44:35,041 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 3.2916666666666665) internal successors, (79), 26 states have internal predecessors, (79), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 69 [2024-10-24 18:44:35,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:44:35,046 INFO L225 Difference]: With dead ends: 1460 [2024-10-24 18:44:35,048 INFO L226 Difference]: Without dead ends: 1457 [2024-10-24 18:44:35,049 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2024-10-24 18:44:35,049 INFO L432 NwaCegarLoop]: 1298 mSDtfsCounter, 13 mSDsluCounter, 18132 mSDsCounter, 0 mSdLazyCounter, 2996 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 19430 SdHoareTripleChecker+Invalid, 3007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-10-24 18:44:35,049 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 19430 Invalid, 3007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2996 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-10-24 18:44:35,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states. [2024-10-24 18:44:35,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 1457. [2024-10-24 18:44:35,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1457 states, 774 states have (on average 1.983204134366925) internal successors, (1535), 1446 states have internal predecessors, (1535), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2024-10-24 18:44:35,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1457 states to 1457 states and 1561 transitions. [2024-10-24 18:44:35,071 INFO L78 Accepts]: Start accepts. Automaton has 1457 states and 1561 transitions. Word has length 69 [2024-10-24 18:44:35,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:44:35,072 INFO L471 AbstractCegarLoop]: Abstraction has 1457 states and 1561 transitions. [2024-10-24 18:44:35,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 3.2916666666666665) internal successors, (79), 26 states have internal predecessors, (79), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 18:44:35,072 INFO L276 IsEmpty]: Start isEmpty. Operand 1457 states and 1561 transitions. [2024-10-24 18:44:35,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-24 18:44:35,076 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:44:35,076 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] [2024-10-24 18:44:35,090 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 18:44:35,276 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 18:44:35,277 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-10-24 18:44:35,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:44:35,278 INFO L85 PathProgramCache]: Analyzing trace with hash 289361494, now seen corresponding path program 4 times [2024-10-24 18:44:35,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:44:35,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1765249788] [2024-10-24 18:44:35,278 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-24 18:44:35,278 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 18:44:35,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:44:35,280 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 18:44:35,282 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 18:44:35,729 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-24 18:44:35,729 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 18:44:35,744 INFO L255 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-10-24 18:44:35,746 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:44:36,107 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:44:36,107 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 18:44:37,452 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:44:37,453 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:44:37,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1765249788] [2024-10-24 18:44:37,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1765249788] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 18:44:37,453 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 18:44:37,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2024-10-24 18:44:37,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199803826] [2024-10-24 18:44:37,453 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 18:44:37,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-10-24 18:44:37,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 18:44:37,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-10-24 18:44:37,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2024-10-24 18:44:37,456 INFO L87 Difference]: Start difference. First operand 1457 states and 1561 transitions. Second operand has 50 states, 48 states have (on average 2.1458333333333335) internal successors, (103), 50 states have internal predecessors, (103), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 18:44:48,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 18:44:48,625 INFO L93 Difference]: Finished difference Result 1494 states and 1631 transitions. [2024-10-24 18:44:48,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-10-24 18:44:48,626 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 48 states have (on average 2.1458333333333335) internal successors, (103), 50 states have internal predecessors, (103), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 81 [2024-10-24 18:44:48,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 18:44:48,631 INFO L225 Difference]: With dead ends: 1494 [2024-10-24 18:44:48,631 INFO L226 Difference]: Without dead ends: 1492 [2024-10-24 18:44:48,633 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=2713, Invalid=5843, Unknown=0, NotChecked=0, Total=8556 [2024-10-24 18:44:48,633 INFO L432 NwaCegarLoop]: 1298 mSDtfsCounter, 26 mSDsluCounter, 31102 mSDsCounter, 0 mSdLazyCounter, 5937 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 32400 SdHoareTripleChecker+Invalid, 6020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 5937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2024-10-24 18:44:48,633 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 32400 Invalid, 6020 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [83 Valid, 5937 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2024-10-24 18:44:48,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1492 states. [2024-10-24 18:44:48,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1492 to 1491. [2024-10-24 18:44:48,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1491 states, 808 states have (on average 1.9566831683168318) internal successors, (1581), 1480 states have internal predecessors, (1581), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2024-10-24 18:44:48,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1491 states to 1491 states and 1607 transitions. [2024-10-24 18:44:48,648 INFO L78 Accepts]: Start accepts. Automaton has 1491 states and 1607 transitions. Word has length 81 [2024-10-24 18:44:48,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 18:44:48,649 INFO L471 AbstractCegarLoop]: Abstraction has 1491 states and 1607 transitions. [2024-10-24 18:44:48,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 48 states have (on average 2.1458333333333335) internal successors, (103), 50 states have internal predecessors, (103), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 18:44:48,649 INFO L276 IsEmpty]: Start isEmpty. Operand 1491 states and 1607 transitions. [2024-10-24 18:44:48,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-10-24 18:44:48,649 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 18:44:48,650 INFO L215 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:44:48,662 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 18:44:48,850 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 18:44:48,851 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-10-24 18:44:48,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:44:48,852 INFO L85 PathProgramCache]: Analyzing trace with hash 830712534, now seen corresponding path program 5 times [2024-10-24 18:44:48,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 18:44:48,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2001727816] [2024-10-24 18:44:48,852 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-24 18:44:48,852 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 18:44:48,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 18:44:48,855 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 18:44:48,856 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 18:44:49,944 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2024-10-24 18:44:49,944 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 18:44:49,966 INFO L255 TraceCheckSpWp]: Trace formula consists of 770 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-10-24 18:44:49,973 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:44:49,976 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 18:44:50,065 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-10-24 18:44:50,065 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2024-10-24 18:44:50,089 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 18:44:50,155 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 24 treesize of output 12 [2024-10-24 18:44:50,920 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-10-24 18:44:50,920 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-10-24 18:44:50,947 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 33 treesize of output 15 [2024-10-24 18:44:50,969 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-10-24 18:44:50,969 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 18:44:51,279 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 18:44:51,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2001727816] [2024-10-24 18:44:51,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2001727816] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 18:44:51,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [908250564] [2024-10-24 18:44:51,279 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-24 18:44:51,280 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-10-24 18:44:51,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-10-24 18:44:51,283 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-10-24 18:44:51,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process