./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_OAT_test5-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a046e57d 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_OAT_test5-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ad1bbae792ec9c8e2e546dc04f3672720af98ce14b9bd37d0d7647e79ce45565 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 11:56:50,936 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 11:56:51,009 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-13 11:56:51,013 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 11:56:51,013 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 11:56:51,047 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 11:56:51,047 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 11:56:51,048 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 11:56:51,050 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 11:56:51,052 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 11:56:51,053 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 11:56:51,053 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 11:56:51,053 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 11:56:51,055 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 11:56:51,055 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 11:56:51,056 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 11:56:51,057 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 11:56:51,057 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 11:56:51,057 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 11:56:51,061 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 11:56:51,061 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-13 11:56:51,062 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-13 11:56:51,062 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-13 11:56:51,062 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 11:56:51,062 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-13 11:56:51,063 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 11:56:51,063 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 11:56:51,063 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 11:56:51,063 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 11:56:51,064 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 11:56:51,064 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 11:56:51,064 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 11:56:51,064 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 11:56:51,065 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 11:56:51,065 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 11:56:51,065 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 11:56:51,066 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 11:56:51,066 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 11:56:51,066 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 11:56:51,066 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 11:56:51,066 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 11:56:51,068 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 11:56:51,068 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad1bbae792ec9c8e2e546dc04f3672720af98ce14b9bd37d0d7647e79ce45565 [2024-10-13 11:56:51,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 11:56:51,347 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 11:56:51,350 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 11:56:51,351 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 11:56:51,351 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 11:56:51,353 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-2.i [2024-10-13 11:56:52,822 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 11:56:53,120 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 11:56:53,120 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-2.i [2024-10-13 11:56:53,140 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec9a89660/e9a518d22ca34958934cf03c2e80251d/FLAGb0970755d [2024-10-13 11:56:53,387 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec9a89660/e9a518d22ca34958934cf03c2e80251d [2024-10-13 11:56:53,389 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 11:56:53,390 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 11:56:53,391 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 11:56:53,391 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 11:56:53,397 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 11:56:53,397 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:56:53" (1/1) ... [2024-10-13 11:56:53,398 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b73ddcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:56:53, skipping insertion in model container [2024-10-13 11:56:53,398 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:56:53" (1/1) ... [2024-10-13 11:56:53,462 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 11:56:54,069 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 11:56:54,084 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) [2024-10-13 11:56:54,084 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@711226a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:56:54, skipping insertion in model container [2024-10-13 11:56:54,085 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 11:56:54,085 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-10-13 11:56:54,088 INFO L158 Benchmark]: Toolchain (without parser) took 697.18ms. Allocated memory was 144.7MB in the beginning and 195.0MB in the end (delta: 50.3MB). Free memory was 71.9MB in the beginning and 152.0MB in the end (delta: -80.1MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. [2024-10-13 11:56:54,089 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 144.7MB. Free memory is still 96.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 11:56:54,090 INFO L158 Benchmark]: CACSL2BoogieTranslator took 693.65ms. Allocated memory was 144.7MB in the beginning and 195.0MB in the end (delta: 50.3MB). Free memory was 71.7MB in the beginning and 152.0MB in the end (delta: -80.3MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. [2024-10-13 11:56:54,092 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 144.7MB. Free memory is still 96.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 693.65ms. Allocated memory was 144.7MB in the beginning and 195.0MB in the end (delta: 50.3MB). Free memory was 71.7MB in the beginning and 152.0MB in the end (delta: -80.3MB). Peak memory consumption was 15.8MB. 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_OAT_test5-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ad1bbae792ec9c8e2e546dc04f3672720af98ce14b9bd37d0d7647e79ce45565 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 11:56:56,101 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 11:56:56,183 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-10-13 11:56:56,189 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 11:56:56,191 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 11:56:56,219 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 11:56:56,223 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 11:56:56,224 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 11:56:56,224 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 11:56:56,224 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 11:56:56,225 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 11:56:56,225 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 11:56:56,226 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 11:56:56,226 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 11:56:56,226 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 11:56:56,227 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 11:56:56,227 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 11:56:56,227 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 11:56:56,228 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 11:56:56,228 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 11:56:56,228 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-13 11:56:56,232 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-13 11:56:56,232 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-13 11:56:56,232 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 11:56:56,232 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-13 11:56:56,233 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-13 11:56:56,233 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 11:56:56,233 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-13 11:56:56,233 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 11:56:56,234 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 11:56:56,234 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 11:56:56,234 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 11:56:56,234 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 11:56:56,235 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 11:56:56,235 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 11:56:56,245 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 11:56:56,247 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 11:56:56,247 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 11:56:56,247 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-13 11:56:56,247 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-13 11:56:56,248 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 11:56:56,248 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 11:56:56,249 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 11:56:56,249 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 11:56:56,249 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-13 11:56:56,250 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad1bbae792ec9c8e2e546dc04f3672720af98ce14b9bd37d0d7647e79ce45565 [2024-10-13 11:56:56,603 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 11:56:56,625 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 11:56:56,628 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 11:56:56,630 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 11:56:56,630 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 11:56:56,631 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-2.i [2024-10-13 11:56:58,241 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 11:56:58,585 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 11:56:58,586 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-2.i [2024-10-13 11:56:58,606 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17f37e9ff/0d4a10a0d9d94e4080cefbd9efad1f1e/FLAG62d99aee6 [2024-10-13 11:56:58,619 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17f37e9ff/0d4a10a0d9d94e4080cefbd9efad1f1e [2024-10-13 11:56:58,621 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 11:56:58,622 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 11:56:58,623 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 11:56:58,623 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 11:56:58,628 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 11:56:58,629 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:56:58" (1/1) ... [2024-10-13 11:56:58,630 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6025789c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:56:58, skipping insertion in model container [2024-10-13 11:56:58,632 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:56:58" (1/1) ... [2024-10-13 11:56:58,693 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 11:56:59,319 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 11:56:59,338 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-10-13 11:56:59,352 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 11:56:59,456 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 11:56:59,460 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 11:56:59,539 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 11:56:59,597 INFO L204 MainTranslator]: Completed translation [2024-10-13 11:56:59,597 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:56:59 WrapperNode [2024-10-13 11:56:59,597 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 11:56:59,598 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 11:56:59,598 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 11:56:59,598 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 11:56:59,604 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:56:59" (1/1) ... [2024-10-13 11:56:59,653 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:56:59" (1/1) ... [2024-10-13 11:56:59,734 INFO L138 Inliner]: procedures = 180, calls = 426, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1612 [2024-10-13 11:56:59,735 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 11:56:59,736 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 11:56:59,736 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 11:56:59,736 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 11:56:59,750 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:56:59" (1/1) ... [2024-10-13 11:56:59,750 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:56:59" (1/1) ... [2024-10-13 11:56:59,776 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:56:59" (1/1) ... [2024-10-13 11:56:59,894 INFO L175 MemorySlicer]: Split 397 memory accesses to 3 slices as follows [2, 24, 371]. 93 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 91 writes are split as follows [0, 1, 90]. [2024-10-13 11:56:59,898 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:56:59" (1/1) ... [2024-10-13 11:56:59,898 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:56:59" (1/1) ... [2024-10-13 11:56:59,944 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:56:59" (1/1) ... [2024-10-13 11:56:59,954 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:56:59" (1/1) ... [2024-10-13 11:56:59,960 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:56:59" (1/1) ... [2024-10-13 11:56:59,967 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:56:59" (1/1) ... [2024-10-13 11:57:00,001 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 11:57:00,003 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 11:57:00,004 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 11:57:00,004 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 11:57:00,005 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:56:59" (1/1) ... [2024-10-13 11:57:00,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 11:57:00,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 11:57:00,038 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) [2024-10-13 11:57:00,041 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 [2024-10-13 11:57:00,081 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-10-13 11:57:00,082 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-10-13 11:57:00,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-10-13 11:57:00,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-10-13 11:57:00,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-10-13 11:57:00,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-13 11:57:00,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-13 11:57:00,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-13 11:57:00,083 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-13 11:57:00,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-13 11:57:00,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-10-13 11:57:00,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-10-13 11:57:00,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-10-13 11:57:00,084 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-10-13 11:57:00,084 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-10-13 11:57:00,084 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-10-13 11:57:00,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-13 11:57:00,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 11:57:00,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-13 11:57:00,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-13 11:57:00,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-13 11:57:00,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-13 11:57:00,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-13 11:57:00,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-13 11:57:00,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-13 11:57:00,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-13 11:57:00,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-13 11:57:00,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-13 11:57:00,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-13 11:57:00,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-13 11:57:00,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-13 11:57:00,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-13 11:57:00,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 11:57:00,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 11:57:00,377 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 11:57:00,380 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 11:57:00,402 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-13 11:57:00,442 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-13 11:57:00,465 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-13 11:57:05,587 INFO L? ?]: Removed 1705 outVars from TransFormulas that were not future-live. [2024-10-13 11:57:05,589 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 11:57:05,819 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 11:57:05,819 INFO L314 CfgBuilder]: Removed 92 assume(true) statements. [2024-10-13 11:57:05,819 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:57:05 BoogieIcfgContainer [2024-10-13 11:57:05,819 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 11:57:05,821 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 11:57:05,821 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 11:57:05,825 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 11:57:05,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:56:58" (1/3) ... [2024-10-13 11:57:05,826 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54ffe0c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:57:05, skipping insertion in model container [2024-10-13 11:57:05,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:56:59" (2/3) ... [2024-10-13 11:57:05,828 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54ffe0c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:57:05, skipping insertion in model container [2024-10-13 11:57:05,828 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:57:05" (3/3) ... [2024-10-13 11:57:05,829 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test5-2.i [2024-10-13 11:57:05,846 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 11:57:05,847 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 817 error locations. [2024-10-13 11:57:05,929 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 11:57:05,935 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;@59f2e9f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 11:57:05,935 INFO L334 AbstractCegarLoop]: Starting to check reachability of 817 error locations. [2024-10-13 11:57:05,943 INFO L276 IsEmpty]: Start isEmpty. Operand has 1487 states, 659 states have (on average 2.5128983308042487) internal successors, (1656), 1477 states have internal predecessors, (1656), 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) [2024-10-13 11:57:05,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-13 11:57:05,949 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:57:05,949 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-13 11:57:05,950 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2024-10-13 11:57:05,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:57:05,954 INFO L85 PathProgramCache]: Analyzing trace with hash 78247154, now seen corresponding path program 1 times [2024-10-13 11:57:05,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:57:05,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1805078323] [2024-10-13 11:57:05,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:57:05,967 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 [2024-10-13 11:57:05,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:57:05,971 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) [2024-10-13 11:57:05,973 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 [2024-10-13 11:57:06,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:57:06,197 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-13 11:57:06,203 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:57:06,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:57:06,211 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:57:06,211 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:57:06,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1805078323] [2024-10-13 11:57:06,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1805078323] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:57:06,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:57:06,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 11:57:06,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783529783] [2024-10-13 11:57:06,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:57:06,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 11:57:06,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:57:06,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 11:57:06,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 11:57:06,252 INFO L87 Difference]: Start difference. First operand has 1487 states, 659 states have (on average 2.5128983308042487) internal successors, (1656), 1477 states have internal predecessors, (1656), 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) [2024-10-13 11:57:07,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:57:07,185 INFO L93 Difference]: Finished difference Result 1467 states and 1560 transitions. [2024-10-13 11:57:07,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 11:57:07,190 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 [2024-10-13 11:57:07,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:57:07,211 INFO L225 Difference]: With dead ends: 1467 [2024-10-13 11:57:07,212 INFO L226 Difference]: Without dead ends: 1466 [2024-10-13 11:57:07,217 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 [2024-10-13 11:57:07,221 INFO L432 NwaCegarLoop]: 1403 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1403 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-13 11:57:07,222 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1403 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-13 11:57:07,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1466 states. [2024-10-13 11:57:07,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1466 to 1466. [2024-10-13 11:57:07,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1466 states, 650 states have (on average 2.3615384615384616) internal successors, (1535), 1456 states have internal predecessors, (1535), 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) [2024-10-13 11:57:07,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1466 states to 1466 states and 1559 transitions. [2024-10-13 11:57:07,335 INFO L78 Accepts]: Start accepts. Automaton has 1466 states and 1559 transitions. Word has length 4 [2024-10-13 11:57:07,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:57:07,336 INFO L471 AbstractCegarLoop]: Abstraction has 1466 states and 1559 transitions. [2024-10-13 11:57:07,336 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) [2024-10-13 11:57:07,337 INFO L276 IsEmpty]: Start isEmpty. Operand 1466 states and 1559 transitions. [2024-10-13 11:57:07,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-13 11:57:07,337 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:57:07,337 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-13 11:57:07,344 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 [2024-10-13 11:57:07,540 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 [2024-10-13 11:57:07,541 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2024-10-13 11:57:07,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:57:07,541 INFO L85 PathProgramCache]: Analyzing trace with hash 78247216, now seen corresponding path program 1 times [2024-10-13 11:57:07,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:57:07,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [788714771] [2024-10-13 11:57:07,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:57:07,543 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 [2024-10-13 11:57:07,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:57:07,545 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) [2024-10-13 11:57:07,546 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 [2024-10-13 11:57:07,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:57:07,725 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 11:57:07,727 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:57:07,757 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 [2024-10-13 11:57:07,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:57:07,770 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:57:07,770 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:57:07,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [788714771] [2024-10-13 11:57:07,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [788714771] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:57:07,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:57:07,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 11:57:07,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136582016] [2024-10-13 11:57:07,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:57:07,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 11:57:07,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:57:07,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 11:57:07,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 11:57:07,773 INFO L87 Difference]: Start difference. First operand 1466 states and 1559 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) [2024-10-13 11:57:09,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:57:09,992 INFO L93 Difference]: Finished difference Result 1581 states and 1706 transitions. [2024-10-13 11:57:09,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 11:57:09,994 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 [2024-10-13 11:57:09,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:57:10,000 INFO L225 Difference]: With dead ends: 1581 [2024-10-13 11:57:10,000 INFO L226 Difference]: Without dead ends: 1581 [2024-10-13 11:57:10,001 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 [2024-10-13 11:57:10,002 INFO L432 NwaCegarLoop]: 965 mSDtfsCounter, 1129 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 1054 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1140 SdHoareTripleChecker+Valid, 1205 SdHoareTripleChecker+Invalid, 1153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1054 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-13 11:57:10,003 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1140 Valid, 1205 Invalid, 1153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1054 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-13 11:57:10,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1581 states. [2024-10-13 11:57:10,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1581 to 1374. [2024-10-13 11:57:10,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1374 states, 650 states have (on average 2.22) internal successors, (1443), 1364 states have internal predecessors, (1443), 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) [2024-10-13 11:57:10,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1374 states to 1374 states and 1467 transitions. [2024-10-13 11:57:10,032 INFO L78 Accepts]: Start accepts. Automaton has 1374 states and 1467 transitions. Word has length 4 [2024-10-13 11:57:10,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:57:10,032 INFO L471 AbstractCegarLoop]: Abstraction has 1374 states and 1467 transitions. [2024-10-13 11:57:10,033 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) [2024-10-13 11:57:10,033 INFO L276 IsEmpty]: Start isEmpty. Operand 1374 states and 1467 transitions. [2024-10-13 11:57:10,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-13 11:57:10,033 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:57:10,033 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-13 11:57:10,037 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-10-13 11:57:10,236 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 [2024-10-13 11:57:10,237 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2024-10-13 11:57:10,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:57:10,238 INFO L85 PathProgramCache]: Analyzing trace with hash 78247217, now seen corresponding path program 1 times [2024-10-13 11:57:10,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:57:10,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1515130600] [2024-10-13 11:57:10,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:57:10,242 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 [2024-10-13 11:57:10,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:57:10,243 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) [2024-10-13 11:57:10,245 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 [2024-10-13 11:57:10,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:57:10,371 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 11:57:10,373 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:57:10,382 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 [2024-10-13 11:57:10,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:57:10,397 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:57:10,397 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:57:10,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1515130600] [2024-10-13 11:57:10,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1515130600] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:57:10,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:57:10,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 11:57:10,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799285033] [2024-10-13 11:57:10,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:57:10,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 11:57:10,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:57:10,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 11:57:10,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 11:57:10,400 INFO L87 Difference]: Start difference. First operand 1374 states and 1467 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) [2024-10-13 11:57:13,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:57:13,258 INFO L93 Difference]: Finished difference Result 1859 states and 2003 transitions. [2024-10-13 11:57:13,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 11:57:13,259 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 [2024-10-13 11:57:13,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:57:13,264 INFO L225 Difference]: With dead ends: 1859 [2024-10-13 11:57:13,265 INFO L226 Difference]: Without dead ends: 1859 [2024-10-13 11:57:13,265 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 [2024-10-13 11:57:13,266 INFO L432 NwaCegarLoop]: 1268 mSDtfsCounter, 689 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 1151 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 1845 SdHoareTripleChecker+Invalid, 1176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-10-13 11:57:13,266 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 1845 Invalid, 1176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1151 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-10-13 11:57:13,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1859 states. [2024-10-13 11:57:13,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1859 to 1503. [2024-10-13 11:57:13,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1503 states, 789 states have (on average 2.1863117870722433) internal successors, (1725), 1493 states have internal predecessors, (1725), 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) [2024-10-13 11:57:13,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 1749 transitions. [2024-10-13 11:57:13,295 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 1749 transitions. Word has length 4 [2024-10-13 11:57:13,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:57:13,295 INFO L471 AbstractCegarLoop]: Abstraction has 1503 states and 1749 transitions. [2024-10-13 11:57:13,296 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) [2024-10-13 11:57:13,296 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 1749 transitions. [2024-10-13 11:57:13,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-13 11:57:13,296 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:57:13,296 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-13 11:57:13,300 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-10-13 11:57:13,499 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 [2024-10-13 11:57:13,499 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr620REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2024-10-13 11:57:13,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:57:13,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1867644083, now seen corresponding path program 1 times [2024-10-13 11:57:13,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:57:13,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2088297869] [2024-10-13 11:57:13,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:57:13,501 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 [2024-10-13 11:57:13,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:57:13,504 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) [2024-10-13 11:57:13,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-10-13 11:57:13,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:57:13,624 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 11:57:13,626 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:57:13,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:57:13,635 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:57:13,635 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:57:13,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2088297869] [2024-10-13 11:57:13,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2088297869] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:57:13,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:57:13,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 11:57:13,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533441972] [2024-10-13 11:57:13,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:57:13,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 11:57:13,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:57:13,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 11:57:13,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 11:57:13,638 INFO L87 Difference]: Start difference. First operand 1503 states and 1749 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) [2024-10-13 11:57:14,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:57:14,914 INFO L93 Difference]: Finished difference Result 2807 states and 3288 transitions. [2024-10-13 11:57:14,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 11:57:14,915 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 [2024-10-13 11:57:14,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:57:14,924 INFO L225 Difference]: With dead ends: 2807 [2024-10-13 11:57:14,924 INFO L226 Difference]: Without dead ends: 2807 [2024-10-13 11:57:14,924 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 [2024-10-13 11:57:14,926 INFO L432 NwaCegarLoop]: 1513 mSDtfsCounter, 1222 mSDsluCounter, 1292 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1233 SdHoareTripleChecker+Valid, 2805 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-13 11:57:14,926 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1233 Valid, 2805 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-13 11:57:14,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2807 states. [2024-10-13 11:57:14,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2807 to 1505. [2024-10-13 11:57:14,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 791 states have (on average 2.183312262958281) internal successors, (1727), 1495 states have internal predecessors, (1727), 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) [2024-10-13 11:57:14,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 1751 transitions. [2024-10-13 11:57:14,960 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 1751 transitions. Word has length 5 [2024-10-13 11:57:14,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:57:14,960 INFO L471 AbstractCegarLoop]: Abstraction has 1505 states and 1751 transitions. [2024-10-13 11:57:14,960 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) [2024-10-13 11:57:14,960 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 1751 transitions. [2024-10-13 11:57:14,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-13 11:57:14,961 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:57:14,961 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 11:57:14,965 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 [2024-10-13 11:57:15,161 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 [2024-10-13 11:57:15,162 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2024-10-13 11:57:15,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:57:15,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1845807302, now seen corresponding path program 1 times [2024-10-13 11:57:15,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:57:15,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [90441579] [2024-10-13 11:57:15,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:57:15,164 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 [2024-10-13 11:57:15,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:57:15,171 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) [2024-10-13 11:57:15,172 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 [2024-10-13 11:57:15,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:57:15,328 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 11:57:15,330 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:57:15,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:57:15,346 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:57:15,346 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:57:15,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [90441579] [2024-10-13 11:57:15,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [90441579] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:57:15,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:57:15,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 11:57:15,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694357693] [2024-10-13 11:57:15,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:57:15,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 11:57:15,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:57:15,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 11:57:15,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 11:57:15,348 INFO L87 Difference]: Start difference. First operand 1505 states and 1751 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) [2024-10-13 11:57:16,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:57:16,082 INFO L93 Difference]: Finished difference Result 1466 states and 1711 transitions. [2024-10-13 11:57:16,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 11:57:16,084 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 [2024-10-13 11:57:16,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:57:16,089 INFO L225 Difference]: With dead ends: 1466 [2024-10-13 11:57:16,089 INFO L226 Difference]: Without dead ends: 1466 [2024-10-13 11:57:16,089 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 [2024-10-13 11:57:16,090 INFO L432 NwaCegarLoop]: 1252 mSDtfsCounter, 61 mSDsluCounter, 1210 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 2462 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-13 11:57:16,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 2462 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-13 11:57:16,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1466 states. [2024-10-13 11:57:16,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1466 to 1466. [2024-10-13 11:57:16,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1466 states, 776 states have (on average 2.1739690721649483) internal successors, (1687), 1456 states have internal predecessors, (1687), 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) [2024-10-13 11:57:16,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1466 states to 1466 states and 1711 transitions. [2024-10-13 11:57:16,115 INFO L78 Accepts]: Start accepts. Automaton has 1466 states and 1711 transitions. Word has length 10 [2024-10-13 11:57:16,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:57:16,116 INFO L471 AbstractCegarLoop]: Abstraction has 1466 states and 1711 transitions. [2024-10-13 11:57:16,116 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) [2024-10-13 11:57:16,116 INFO L276 IsEmpty]: Start isEmpty. Operand 1466 states and 1711 transitions. [2024-10-13 11:57:16,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-13 11:57:16,117 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:57:16,117 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 11:57:16,122 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 [2024-10-13 11:57:16,317 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 [2024-10-13 11:57:16,318 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2024-10-13 11:57:16,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:57:16,319 INFO L85 PathProgramCache]: Analyzing trace with hash 672724, now seen corresponding path program 1 times [2024-10-13 11:57:16,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:57:16,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [639268578] [2024-10-13 11:57:16,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:57:16,321 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 [2024-10-13 11:57:16,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:57:16,324 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) [2024-10-13 11:57:16,325 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 [2024-10-13 11:57:16,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:57:16,499 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 11:57:16,501 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:57:16,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:57:16,523 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:57:16,523 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:57:16,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [639268578] [2024-10-13 11:57:16,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [639268578] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:57:16,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:57:16,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 11:57:16,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406878710] [2024-10-13 11:57:16,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:57:16,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 11:57:16,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:57:16,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 11:57:16,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 11:57:16,525 INFO L87 Difference]: Start difference. First operand 1466 states and 1711 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) [2024-10-13 11:57:17,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:57:17,497 INFO L93 Difference]: Finished difference Result 1451 states and 1689 transitions. [2024-10-13 11:57:17,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 11:57:17,498 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 [2024-10-13 11:57:17,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:57:17,502 INFO L225 Difference]: With dead ends: 1451 [2024-10-13 11:57:17,502 INFO L226 Difference]: Without dead ends: 1451 [2024-10-13 11:57:17,502 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 [2024-10-13 11:57:17,503 INFO L432 NwaCegarLoop]: 1221 mSDtfsCounter, 45 mSDsluCounter, 2424 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 3645 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-13 11:57:17,503 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 3645 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-13 11:57:17,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1451 states. [2024-10-13 11:57:17,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1451 to 1451. [2024-10-13 11:57:17,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1451 states, 775 states have (on average 2.1483870967741936) internal successors, (1665), 1441 states have internal predecessors, (1665), 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) [2024-10-13 11:57:17,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1451 states to 1451 states and 1689 transitions. [2024-10-13 11:57:17,524 INFO L78 Accepts]: Start accepts. Automaton has 1451 states and 1689 transitions. Word has length 12 [2024-10-13 11:57:17,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:57:17,525 INFO L471 AbstractCegarLoop]: Abstraction has 1451 states and 1689 transitions. [2024-10-13 11:57:17,525 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) [2024-10-13 11:57:17,525 INFO L276 IsEmpty]: Start isEmpty. Operand 1451 states and 1689 transitions. [2024-10-13 11:57:17,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-13 11:57:17,526 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:57:17,526 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] [2024-10-13 11:57:17,532 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 (7)] Forceful destruction successful, exit code 0 [2024-10-13 11:57:17,726 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 [2024-10-13 11:57:17,727 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2024-10-13 11:57:17,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:57:17,727 INFO L85 PathProgramCache]: Analyzing trace with hash 106740226, now seen corresponding path program 1 times [2024-10-13 11:57:17,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:57:17,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [128411919] [2024-10-13 11:57:17,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:57:17,728 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 [2024-10-13 11:57:17,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:57:17,729 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) [2024-10-13 11:57:17,730 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 [2024-10-13 11:57:17,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:57:17,884 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 11:57:17,886 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:57:17,893 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 [2024-10-13 11:57:17,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:57:17,959 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:57:17,960 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:57:17,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [128411919] [2024-10-13 11:57:17,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [128411919] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:57:17,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:57:17,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 11:57:17,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308479635] [2024-10-13 11:57:17,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:57:17,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 11:57:17,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:57:17,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 11:57:17,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 11:57:17,961 INFO L87 Difference]: Start difference. First operand 1451 states and 1689 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) [2024-10-13 11:57:20,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:57:20,094 INFO L93 Difference]: Finished difference Result 1451 states and 1689 transitions. [2024-10-13 11:57:20,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 11:57:20,095 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 [2024-10-13 11:57:20,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:57:20,100 INFO L225 Difference]: With dead ends: 1451 [2024-10-13 11:57:20,100 INFO L226 Difference]: Without dead ends: 1451 [2024-10-13 11:57:20,100 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 [2024-10-13 11:57:20,101 INFO L432 NwaCegarLoop]: 716 mSDtfsCounter, 1073 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 1664 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1084 SdHoareTripleChecker+Valid, 1384 SdHoareTripleChecker+Invalid, 1675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-13 11:57:20,101 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1084 Valid, 1384 Invalid, 1675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1664 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-13 11:57:20,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1451 states. [2024-10-13 11:57:20,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1451 to 1447. [2024-10-13 11:57:20,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1447 states, 775 states have (on average 2.1432258064516128) internal successors, (1661), 1437 states have internal predecessors, (1661), 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) [2024-10-13 11:57:20,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1447 states to 1447 states and 1685 transitions. [2024-10-13 11:57:20,121 INFO L78 Accepts]: Start accepts. Automaton has 1447 states and 1685 transitions. Word has length 26 [2024-10-13 11:57:20,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:57:20,122 INFO L471 AbstractCegarLoop]: Abstraction has 1447 states and 1685 transitions. [2024-10-13 11:57:20,122 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) [2024-10-13 11:57:20,122 INFO L276 IsEmpty]: Start isEmpty. Operand 1447 states and 1685 transitions. [2024-10-13 11:57:20,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-13 11:57:20,122 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:57:20,123 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] [2024-10-13 11:57:20,129 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 [2024-10-13 11:57:20,323 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 [2024-10-13 11:57:20,324 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2024-10-13 11:57:20,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:57:20,324 INFO L85 PathProgramCache]: Analyzing trace with hash 106740227, now seen corresponding path program 1 times [2024-10-13 11:57:20,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:57:20,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [463515102] [2024-10-13 11:57:20,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:57:20,325 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 11:57:20,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:57:20,328 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) [2024-10-13 11:57:20,329 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 [2024-10-13 11:57:20,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:57:20,489 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-13 11:57:20,492 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:57:20,503 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 [2024-10-13 11:57:20,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:57:20,686 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:57:20,686 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:57:20,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [463515102] [2024-10-13 11:57:20,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [463515102] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:57:20,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:57:20,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 11:57:20,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392322697] [2024-10-13 11:57:20,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:57:20,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 11:57:20,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:57:20,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 11:57:20,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 11:57:20,687 INFO L87 Difference]: Start difference. First operand 1447 states and 1685 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) [2024-10-13 11:57:23,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:57:23,775 INFO L93 Difference]: Finished difference Result 1804 states and 1940 transitions. [2024-10-13 11:57:23,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 11:57:23,775 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 [2024-10-13 11:57:23,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:57:23,780 INFO L225 Difference]: With dead ends: 1804 [2024-10-13 11:57:23,780 INFO L226 Difference]: Without dead ends: 1804 [2024-10-13 11:57:23,780 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 [2024-10-13 11:57:23,780 INFO L432 NwaCegarLoop]: 1020 mSDtfsCounter, 629 mSDsluCounter, 1170 mSDsCounter, 0 mSdLazyCounter, 1839 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 2190 SdHoareTripleChecker+Invalid, 1842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-10-13 11:57:23,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [634 Valid, 2190 Invalid, 1842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1839 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-10-13 11:57:23,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1804 states. [2024-10-13 11:57:23,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1804 to 1443. [2024-10-13 11:57:23,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1443 states, 775 states have (on average 2.1380645161290324) internal successors, (1657), 1433 states have internal predecessors, (1657), 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) [2024-10-13 11:57:23,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1443 states to 1443 states and 1681 transitions. [2024-10-13 11:57:23,801 INFO L78 Accepts]: Start accepts. Automaton has 1443 states and 1681 transitions. Word has length 26 [2024-10-13 11:57:23,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:57:23,801 INFO L471 AbstractCegarLoop]: Abstraction has 1443 states and 1681 transitions. [2024-10-13 11:57:23,802 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) [2024-10-13 11:57:23,802 INFO L276 IsEmpty]: Start isEmpty. Operand 1443 states and 1681 transitions. [2024-10-13 11:57:23,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-13 11:57:23,803 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:57:23,803 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] [2024-10-13 11:57:23,808 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 (9)] Forceful destruction successful, exit code 0 [2024-10-13 11:57:24,003 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 [2024-10-13 11:57:24,005 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2024-10-13 11:57:24,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:57:24,005 INFO L85 PathProgramCache]: Analyzing trace with hash -906836612, now seen corresponding path program 1 times [2024-10-13 11:57:24,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:57:24,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [632531201] [2024-10-13 11:57:24,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:57:24,006 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 [2024-10-13 11:57:24,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:57:24,009 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) [2024-10-13 11:57:24,012 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 [2024-10-13 11:57:24,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:57:24,220 INFO L255 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 11:57:24,222 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:57:24,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:57:24,257 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:57:24,257 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:57:24,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [632531201] [2024-10-13 11:57:24,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [632531201] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:57:24,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:57:24,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 11:57:24,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580803577] [2024-10-13 11:57:24,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:57:24,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 11:57:24,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:57:24,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 11:57:24,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 11:57:24,259 INFO L87 Difference]: Start difference. First operand 1443 states and 1681 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) [2024-10-13 11:57:25,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:57:25,342 INFO L93 Difference]: Finished difference Result 1437 states and 1671 transitions. [2024-10-13 11:57:25,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 11:57:25,344 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 [2024-10-13 11:57:25,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:57:25,347 INFO L225 Difference]: With dead ends: 1437 [2024-10-13 11:57:25,347 INFO L226 Difference]: Without dead ends: 1437 [2024-10-13 11:57:25,348 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 [2024-10-13 11:57:25,348 INFO L432 NwaCegarLoop]: 1215 mSDtfsCounter, 15 mSDsluCounter, 2413 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 3628 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-13 11:57:25,348 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 3628 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-13 11:57:25,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1437 states. [2024-10-13 11:57:25,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1437 to 1437. [2024-10-13 11:57:25,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1437 states, 769 states have (on average 2.141742522756827) internal successors, (1647), 1427 states have internal predecessors, (1647), 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) [2024-10-13 11:57:25,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1437 states to 1437 states and 1671 transitions. [2024-10-13 11:57:25,370 INFO L78 Accepts]: Start accepts. Automaton has 1437 states and 1671 transitions. Word has length 42 [2024-10-13 11:57:25,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:57:25,371 INFO L471 AbstractCegarLoop]: Abstraction has 1437 states and 1671 transitions. [2024-10-13 11:57:25,371 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) [2024-10-13 11:57:25,371 INFO L276 IsEmpty]: Start isEmpty. Operand 1437 states and 1671 transitions. [2024-10-13 11:57:25,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-10-13 11:57:25,372 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:57:25,372 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] [2024-10-13 11:57:25,379 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 (10)] Forceful destruction successful, exit code 0 [2024-10-13 11:57:25,572 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 [2024-10-13 11:57:25,573 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2024-10-13 11:57:25,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:57:25,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1382147612, now seen corresponding path program 1 times [2024-10-13 11:57:25,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:57:25,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1007863618] [2024-10-13 11:57:25,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:57:25,578 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 [2024-10-13 11:57:25,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:57:25,581 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) [2024-10-13 11:57:25,583 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 [2024-10-13 11:57:25,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:57:25,821 INFO L255 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 11:57:25,824 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:57:26,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:57:26,032 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:57:26,032 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:57:26,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1007863618] [2024-10-13 11:57:26,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1007863618] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:57:26,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:57:26,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 11:57:26,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395247611] [2024-10-13 11:57:26,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:57:26,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 11:57:26,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:57:26,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 11:57:26,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 11:57:26,035 INFO L87 Difference]: Start difference. First operand 1437 states and 1671 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) [2024-10-13 11:57:26,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:57:26,854 INFO L93 Difference]: Finished difference Result 1634 states and 1897 transitions. [2024-10-13 11:57:26,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 11:57:26,855 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 [2024-10-13 11:57:26,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:57:26,860 INFO L225 Difference]: With dead ends: 1634 [2024-10-13 11:57:26,860 INFO L226 Difference]: Without dead ends: 1634 [2024-10-13 11:57:26,860 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 [2024-10-13 11:57:26,860 INFO L432 NwaCegarLoop]: 1282 mSDtfsCounter, 161 mSDsluCounter, 1168 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 2450 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-13 11:57:26,860 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 2450 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-13 11:57:26,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2024-10-13 11:57:26,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 1480. [2024-10-13 11:57:26,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1480 states, 812 states have (on average 2.08128078817734) internal successors, (1690), 1470 states have internal predecessors, (1690), 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) [2024-10-13 11:57:26,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1480 states to 1480 states and 1714 transitions. [2024-10-13 11:57:26,878 INFO L78 Accepts]: Start accepts. Automaton has 1480 states and 1714 transitions. Word has length 46 [2024-10-13 11:57:26,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:57:26,879 INFO L471 AbstractCegarLoop]: Abstraction has 1480 states and 1714 transitions. [2024-10-13 11:57:26,879 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) [2024-10-13 11:57:26,879 INFO L276 IsEmpty]: Start isEmpty. Operand 1480 states and 1714 transitions. [2024-10-13 11:57:26,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-13 11:57:26,880 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:57:26,880 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] [2024-10-13 11:57:26,887 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 [2024-10-13 11:57:27,081 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 [2024-10-13 11:57:27,081 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2024-10-13 11:57:27,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:57:27,081 INFO L85 PathProgramCache]: Analyzing trace with hash -399412619, now seen corresponding path program 1 times [2024-10-13 11:57:27,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:57:27,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1590989052] [2024-10-13 11:57:27,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:57:27,082 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 [2024-10-13 11:57:27,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:57:27,085 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) [2024-10-13 11:57:27,087 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 [2024-10-13 11:57:27,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:57:27,419 INFO L255 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 11:57:27,425 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:57:27,435 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 [2024-10-13 11:57:27,442 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 [2024-10-13 11:57:27,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 11:57:27,834 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 [2024-10-13 11:57:27,851 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-13 11:57:27,851 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 [2024-10-13 11:57:27,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:57:27,866 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:57:27,866 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:57:27,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1590989052] [2024-10-13 11:57:27,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1590989052] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:57:27,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:57:27,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 11:57:27,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441421883] [2024-10-13 11:57:27,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:57:27,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 11:57:27,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:57:27,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 11:57:27,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 11:57:27,869 INFO L87 Difference]: Start difference. First operand 1480 states and 1714 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) [2024-10-13 11:57:29,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:57:29,930 INFO L93 Difference]: Finished difference Result 1396 states and 1630 transitions. [2024-10-13 11:57:29,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 11:57:29,931 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 [2024-10-13 11:57:29,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:57:29,935 INFO L225 Difference]: With dead ends: 1396 [2024-10-13 11:57:29,935 INFO L226 Difference]: Without dead ends: 1396 [2024-10-13 11:57:29,935 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 [2024-10-13 11:57:29,936 INFO L432 NwaCegarLoop]: 474 mSDtfsCounter, 1007 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 1122 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1018 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 1213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-13 11:57:29,936 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1018 Valid, 616 Invalid, 1213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1122 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-13 11:57:29,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1396 states. [2024-10-13 11:57:29,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1396 to 1257. [2024-10-13 11:57:29,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 673 states have (on average 1.9524517087667161) internal successors, (1314), 1247 states have internal predecessors, (1314), 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) [2024-10-13 11:57:29,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 1338 transitions. [2024-10-13 11:57:29,952 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 1338 transitions. Word has length 49 [2024-10-13 11:57:29,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:57:29,952 INFO L471 AbstractCegarLoop]: Abstraction has 1257 states and 1338 transitions. [2024-10-13 11:57:29,952 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) [2024-10-13 11:57:29,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 1338 transitions. [2024-10-13 11:57:29,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-13 11:57:29,953 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:57:29,953 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] [2024-10-13 11:57:29,963 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 [2024-10-13 11:57:30,157 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 [2024-10-13 11:57:30,158 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2024-10-13 11:57:30,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:57:30,158 INFO L85 PathProgramCache]: Analyzing trace with hash 879763016, now seen corresponding path program 1 times [2024-10-13 11:57:30,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:57:30,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1420382040] [2024-10-13 11:57:30,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:57:30,159 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 [2024-10-13 11:57:30,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:57:30,164 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) [2024-10-13 11:57:30,184 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 [2024-10-13 11:57:30,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:57:30,431 INFO L255 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-13 11:57:30,433 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:57:30,440 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 [2024-10-13 11:57:30,451 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 [2024-10-13 11:57:30,468 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 [2024-10-13 11:57:30,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:57:30,475 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:57:30,475 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:57:30,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1420382040] [2024-10-13 11:57:30,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1420382040] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:57:30,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:57:30,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 11:57:30,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990790312] [2024-10-13 11:57:30,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:57:30,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 11:57:30,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:57:30,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 11:57:30,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 11:57:30,476 INFO L87 Difference]: Start difference. First operand 1257 states and 1338 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) [2024-10-13 11:57:32,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:57:32,944 INFO L93 Difference]: Finished difference Result 1256 states and 1337 transitions. [2024-10-13 11:57:32,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 11:57:32,945 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 [2024-10-13 11:57:32,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:57:32,948 INFO L225 Difference]: With dead ends: 1256 [2024-10-13 11:57:32,948 INFO L226 Difference]: Without dead ends: 1256 [2024-10-13 11:57:32,948 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 [2024-10-13 11:57:32,948 INFO L432 NwaCegarLoop]: 1143 mSDtfsCounter, 2 mSDsluCounter, 1847 mSDsCounter, 0 mSdLazyCounter, 2170 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2990 SdHoareTripleChecker+Invalid, 2171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-13 11:57:32,949 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2990 Invalid, 2171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2170 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-13 11:57:32,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1256 states. [2024-10-13 11:57:32,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1256 to 1256. [2024-10-13 11:57:32,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1256 states, 673 states have (on average 1.950965824665676) internal successors, (1313), 1246 states have internal predecessors, (1313), 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) [2024-10-13 11:57:32,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1256 states to 1256 states and 1337 transitions. [2024-10-13 11:57:32,963 INFO L78 Accepts]: Start accepts. Automaton has 1256 states and 1337 transitions. Word has length 53 [2024-10-13 11:57:32,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:57:32,964 INFO L471 AbstractCegarLoop]: Abstraction has 1256 states and 1337 transitions. [2024-10-13 11:57:32,965 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) [2024-10-13 11:57:32,965 INFO L276 IsEmpty]: Start isEmpty. Operand 1256 states and 1337 transitions. [2024-10-13 11:57:32,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-13 11:57:32,967 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:57:32,967 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] [2024-10-13 11:57:32,975 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 [2024-10-13 11:57:33,167 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 [2024-10-13 11:57:33,168 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr67REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2024-10-13 11:57:33,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:57:33,168 INFO L85 PathProgramCache]: Analyzing trace with hash 879763017, now seen corresponding path program 1 times [2024-10-13 11:57:33,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:57:33,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [663024500] [2024-10-13 11:57:33,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:57:33,169 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 [2024-10-13 11:57:33,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:57:33,170 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) [2024-10-13 11:57:33,171 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 [2024-10-13 11:57:33,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:57:33,428 INFO L255 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-13 11:57:33,431 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:57:33,440 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 [2024-10-13 11:57:33,462 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 [2024-10-13 11:57:33,468 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 [2024-10-13 11:57:33,505 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 [2024-10-13 11:57:33,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:57:33,524 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:57:33,525 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:57:33,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [663024500] [2024-10-13 11:57:33,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [663024500] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:57:33,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:57:33,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 11:57:33,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365208473] [2024-10-13 11:57:33,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:57:33,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 11:57:33,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:57:33,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 11:57:33,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 11:57:33,526 INFO L87 Difference]: Start difference. First operand 1256 states and 1337 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) [2024-10-13 11:57:36,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:57:36,597 INFO L93 Difference]: Finished difference Result 1255 states and 1336 transitions. [2024-10-13 11:57:36,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 11:57:36,598 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 [2024-10-13 11:57:36,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:57:36,600 INFO L225 Difference]: With dead ends: 1255 [2024-10-13 11:57:36,600 INFO L226 Difference]: Without dead ends: 1255 [2024-10-13 11:57:36,601 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 [2024-10-13 11:57:36,601 INFO L432 NwaCegarLoop]: 1143 mSDtfsCounter, 1 mSDsluCounter, 1883 mSDsCounter, 0 mSdLazyCounter, 2131 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3026 SdHoareTripleChecker+Invalid, 2132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-10-13 11:57:36,601 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3026 Invalid, 2132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2131 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-10-13 11:57:36,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2024-10-13 11:57:36,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1255. [2024-10-13 11:57:36,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 672 states have (on average 1.9523809523809523) internal successors, (1312), 1245 states have internal predecessors, (1312), 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) [2024-10-13 11:57:36,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1336 transitions. [2024-10-13 11:57:36,614 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1336 transitions. Word has length 53 [2024-10-13 11:57:36,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:57:36,614 INFO L471 AbstractCegarLoop]: Abstraction has 1255 states and 1336 transitions. [2024-10-13 11:57:36,614 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) [2024-10-13 11:57:36,614 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1336 transitions. [2024-10-13 11:57:36,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-13 11:57:36,615 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:57:36,615 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] [2024-10-13 11:57:36,624 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 [2024-10-13 11:57:36,819 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 [2024-10-13 11:57:36,820 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2024-10-13 11:57:36,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:57:36,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1289906924, now seen corresponding path program 1 times [2024-10-13 11:57:36,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:57:36,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [195387694] [2024-10-13 11:57:36,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:57:36,821 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 [2024-10-13 11:57:36,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:57:36,822 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) [2024-10-13 11:57:36,823 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 [2024-10-13 11:57:37,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:57:37,052 INFO L255 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 11:57:37,054 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:57:37,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:57:37,075 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:57:37,075 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:57:37,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [195387694] [2024-10-13 11:57:37,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [195387694] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:57:37,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:57:37,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 11:57:37,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554276108] [2024-10-13 11:57:37,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:57:37,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 11:57:37,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:57:37,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 11:57:37,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 11:57:37,077 INFO L87 Difference]: Start difference. First operand 1255 states and 1336 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) [2024-10-13 11:57:37,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:57:37,876 INFO L93 Difference]: Finished difference Result 1257 states and 1340 transitions. [2024-10-13 11:57:37,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 11:57:37,877 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 [2024-10-13 11:57:37,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:57:37,881 INFO L225 Difference]: With dead ends: 1257 [2024-10-13 11:57:37,881 INFO L226 Difference]: Without dead ends: 1257 [2024-10-13 11:57:37,881 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 [2024-10-13 11:57:37,882 INFO L432 NwaCegarLoop]: 1142 mSDtfsCounter, 0 mSDsluCounter, 2278 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3420 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-13 11:57:37,882 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3420 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-13 11:57:37,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2024-10-13 11:57:37,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2024-10-13 11:57:37,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 673 states have (on average 1.9524517087667161) internal successors, (1314), 1247 states have internal predecessors, (1314), 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) [2024-10-13 11:57:37,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 1340 transitions. [2024-10-13 11:57:37,911 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 1340 transitions. Word has length 59 [2024-10-13 11:57:37,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:57:37,912 INFO L471 AbstractCegarLoop]: Abstraction has 1257 states and 1340 transitions. [2024-10-13 11:57:37,912 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) [2024-10-13 11:57:37,912 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 1340 transitions. [2024-10-13 11:57:37,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-13 11:57:37,912 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:57:37,913 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] [2024-10-13 11:57:37,922 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 (15)] Forceful destruction successful, exit code 0 [2024-10-13 11:57:38,116 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 [2024-10-13 11:57:38,117 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2024-10-13 11:57:38,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:57:38,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1149650274, now seen corresponding path program 1 times [2024-10-13 11:57:38,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:57:38,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [9448120] [2024-10-13 11:57:38,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:57:38,118 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 11:57:38,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:57:38,119 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) [2024-10-13 11:57:38,120 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 [2024-10-13 11:57:38,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:57:38,362 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 11:57:38,364 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:57:38,384 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:57:38,384 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 11:57:38,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:57:38,458 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:57:38,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [9448120] [2024-10-13 11:57:38,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [9448120] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 11:57:38,459 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 11:57:38,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-10-13 11:57:38,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693240731] [2024-10-13 11:57:38,459 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 11:57:38,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 11:57:38,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:57:38,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 11:57:38,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-13 11:57:38,461 INFO L87 Difference]: Start difference. First operand 1257 states and 1340 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) [2024-10-13 11:57:39,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:57:39,341 INFO L93 Difference]: Finished difference Result 1266 states and 1355 transitions. [2024-10-13 11:57:39,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 11:57:39,342 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 [2024-10-13 11:57:39,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:57:39,346 INFO L225 Difference]: With dead ends: 1266 [2024-10-13 11:57:39,346 INFO L226 Difference]: Without dead ends: 1266 [2024-10-13 11:57:39,346 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 [2024-10-13 11:57:39,346 INFO L432 NwaCegarLoop]: 1140 mSDtfsCounter, 5 mSDsluCounter, 2276 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 3416 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-13 11:57:39,347 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 3416 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-13 11:57:39,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1266 states. [2024-10-13 11:57:39,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1266 to 1265. [2024-10-13 11:57:39,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 680 states have (on average 1.951470588235294) internal successors, (1327), 1254 states have internal predecessors, (1327), 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) [2024-10-13 11:57:39,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 1353 transitions. [2024-10-13 11:57:39,363 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 1353 transitions. Word has length 60 [2024-10-13 11:57:39,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:57:39,363 INFO L471 AbstractCegarLoop]: Abstraction has 1265 states and 1353 transitions. [2024-10-13 11:57:39,364 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) [2024-10-13 11:57:39,364 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 1353 transitions. [2024-10-13 11:57:39,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-13 11:57:39,364 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:57:39,364 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] [2024-10-13 11:57:39,373 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 [2024-10-13 11:57:39,565 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 [2024-10-13 11:57:39,565 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2024-10-13 11:57:39,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:57:39,566 INFO L85 PathProgramCache]: Analyzing trace with hash 71325804, now seen corresponding path program 2 times [2024-10-13 11:57:39,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:57:39,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1293395597] [2024-10-13 11:57:39,566 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 11:57:39,566 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 [2024-10-13 11:57:39,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:57:39,567 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) [2024-10-13 11:57:39,568 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 [2024-10-13 11:57:39,932 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 11:57:39,932 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 11:57:39,942 INFO L255 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-13 11:57:39,944 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:57:39,983 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:57:39,984 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 11:57:40,105 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:57:40,106 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:57:40,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1293395597] [2024-10-13 11:57:40,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1293395597] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 11:57:40,106 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 11:57:40,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-10-13 11:57:40,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675737088] [2024-10-13 11:57:40,106 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 11:57:40,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-13 11:57:40,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:57:40,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-13 11:57:40,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-10-13 11:57:40,108 INFO L87 Difference]: Start difference. First operand 1265 states and 1353 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) [2024-10-13 11:57:41,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:57:41,795 INFO L93 Difference]: Finished difference Result 1277 states and 1373 transitions. [2024-10-13 11:57:41,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-13 11:57:41,796 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 [2024-10-13 11:57:41,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:57:41,801 INFO L225 Difference]: With dead ends: 1277 [2024-10-13 11:57:41,801 INFO L226 Difference]: Without dead ends: 1275 [2024-10-13 11:57:41,802 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 [2024-10-13 11:57:41,802 INFO L432 NwaCegarLoop]: 1140 mSDtfsCounter, 7 mSDsluCounter, 5690 mSDsCounter, 0 mSdLazyCounter, 1048 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 6830 SdHoareTripleChecker+Invalid, 1069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-13 11:57:41,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 6830 Invalid, 1069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1048 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-13 11:57:41,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1275 states. [2024-10-13 11:57:41,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1275 to 1274. [2024-10-13 11:57:41,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1274 states, 689 states have (on average 1.9433962264150944) internal successors, (1339), 1263 states have internal predecessors, (1339), 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) [2024-10-13 11:57:41,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 1365 transitions. [2024-10-13 11:57:41,819 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 1365 transitions. Word has length 63 [2024-10-13 11:57:41,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:57:41,819 INFO L471 AbstractCegarLoop]: Abstraction has 1274 states and 1365 transitions. [2024-10-13 11:57:41,819 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) [2024-10-13 11:57:41,820 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 1365 transitions. [2024-10-13 11:57:41,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-13 11:57:41,820 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:57:41,820 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] [2024-10-13 11:57:41,832 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 (17)] Forceful destruction successful, exit code 0 [2024-10-13 11:57:42,021 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 [2024-10-13 11:57:42,021 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2024-10-13 11:57:42,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:57:42,022 INFO L85 PathProgramCache]: Analyzing trace with hash 780932268, now seen corresponding path program 3 times [2024-10-13 11:57:42,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:57:42,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [117331089] [2024-10-13 11:57:42,022 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-13 11:57:42,023 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 [2024-10-13 11:57:42,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:57:42,024 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) [2024-10-13 11:57:42,025 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 [2024-10-13 11:57:42,578 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-10-13 11:57:42,578 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 11:57:42,590 INFO L255 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-13 11:57:42,592 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:57:42,718 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:57:42,719 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 11:57:43,136 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:57:43,136 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:57:43,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [117331089] [2024-10-13 11:57:43,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [117331089] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 11:57:43,136 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 11:57:43,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-10-13 11:57:43,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723690261] [2024-10-13 11:57:43,137 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 11:57:43,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-13 11:57:43,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:57:43,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-13 11:57:43,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-10-13 11:57:43,141 INFO L87 Difference]: Start difference. First operand 1274 states and 1365 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) [2024-10-13 11:57:47,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:57:47,505 INFO L93 Difference]: Finished difference Result 1295 states and 1401 transitions. [2024-10-13 11:57:47,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-10-13 11:57:47,505 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 [2024-10-13 11:57:47,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:57:47,509 INFO L225 Difference]: With dead ends: 1295 [2024-10-13 11:57:47,509 INFO L226 Difference]: Without dead ends: 1292 [2024-10-13 11:57:47,510 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2024-10-13 11:57:47,510 INFO L432 NwaCegarLoop]: 1140 mSDtfsCounter, 13 mSDsluCounter, 13648 mSDsCounter, 0 mSdLazyCounter, 2486 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 14788 SdHoareTripleChecker+Invalid, 2505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-10-13 11:57:47,510 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 14788 Invalid, 2505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 2486 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-10-13 11:57:47,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1292 states. [2024-10-13 11:57:47,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1292 to 1292. [2024-10-13 11:57:47,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1292 states, 707 states have (on average 1.9264497878359264) internal successors, (1362), 1281 states have internal predecessors, (1362), 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) [2024-10-13 11:57:47,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1292 states to 1292 states and 1388 transitions. [2024-10-13 11:57:47,527 INFO L78 Accepts]: Start accepts. Automaton has 1292 states and 1388 transitions. Word has length 69 [2024-10-13 11:57:47,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:57:47,528 INFO L471 AbstractCegarLoop]: Abstraction has 1292 states and 1388 transitions. [2024-10-13 11:57:47,528 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) [2024-10-13 11:57:47,528 INFO L276 IsEmpty]: Start isEmpty. Operand 1292 states and 1388 transitions. [2024-10-13 11:57:47,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-13 11:57:47,530 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:57:47,531 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] [2024-10-13 11:57:47,544 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 (18)] Ended with exit code 0 [2024-10-13 11:57:47,731 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 [2024-10-13 11:57:47,732 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2024-10-13 11:57:47,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:57:47,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1828519212, now seen corresponding path program 4 times [2024-10-13 11:57:47,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:57:47,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [557774184] [2024-10-13 11:57:47,733 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-13 11:57:47,733 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 [2024-10-13 11:57:47,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:57:47,735 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) [2024-10-13 11:57:47,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-10-13 11:57:48,163 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-13 11:57:48,163 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 11:57:48,178 INFO L255 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-10-13 11:57:48,180 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:57:48,505 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:57:48,505 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 11:57:49,620 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:57:49,621 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:57:49,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [557774184] [2024-10-13 11:57:49,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [557774184] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 11:57:49,621 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 11:57:49,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2024-10-13 11:57:49,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943682649] [2024-10-13 11:57:49,622 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 11:57:49,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-10-13 11:57:49,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:57:49,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-10-13 11:57:49,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2024-10-13 11:57:49,625 INFO L87 Difference]: Start difference. First operand 1292 states and 1388 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) [2024-10-13 11:57:59,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:57:59,416 INFO L93 Difference]: Finished difference Result 1329 states and 1458 transitions. [2024-10-13 11:57:59,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-10-13 11:57:59,416 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 [2024-10-13 11:57:59,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:57:59,419 INFO L225 Difference]: With dead ends: 1329 [2024-10-13 11:57:59,420 INFO L226 Difference]: Without dead ends: 1327 [2024-10-13 11:57:59,422 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=2713, Invalid=5843, Unknown=0, NotChecked=0, Total=8556 [2024-10-13 11:57:59,422 INFO L432 NwaCegarLoop]: 1140 mSDtfsCounter, 25 mSDsluCounter, 26174 mSDsCounter, 0 mSdLazyCounter, 5434 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 27314 SdHoareTripleChecker+Invalid, 5487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 5434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2024-10-13 11:57:59,423 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 27314 Invalid, 5487 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [53 Valid, 5434 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2024-10-13 11:57:59,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1327 states. [2024-10-13 11:57:59,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1327 to 1326. [2024-10-13 11:57:59,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1326 states, 741 states have (on average 1.9001349527665317) internal successors, (1408), 1315 states have internal predecessors, (1408), 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) [2024-10-13 11:57:59,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 1434 transitions. [2024-10-13 11:57:59,440 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 1434 transitions. Word has length 81 [2024-10-13 11:57:59,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:57:59,440 INFO L471 AbstractCegarLoop]: Abstraction has 1326 states and 1434 transitions. [2024-10-13 11:57:59,440 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) [2024-10-13 11:57:59,440 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 1434 transitions. [2024-10-13 11:57:59,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-10-13 11:57:59,441 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:57:59,441 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] [2024-10-13 11:57:59,457 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 [2024-10-13 11:57:59,642 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 [2024-10-13 11:57:59,642 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2024-10-13 11:57:59,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:57:59,643 INFO L85 PathProgramCache]: Analyzing trace with hash -211525780, now seen corresponding path program 5 times [2024-10-13 11:57:59,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:57:59,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1269381208] [2024-10-13 11:57:59,643 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-13 11:57:59,643 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 [2024-10-13 11:57:59,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:57:59,645 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) [2024-10-13 11:57:59,646 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 [2024-10-13 11:58:00,850 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2024-10-13 11:58:00,850 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 11:58:00,875 INFO L255 TraceCheckSpWp]: Trace formula consists of 770 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-10-13 11:58:00,883 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:58:00,886 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 [2024-10-13 11:58:00,970 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-10-13 11:58:00,970 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 [2024-10-13 11:58:01,000 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 [2024-10-13 11:58:01,101 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 [2024-10-13 11:58:02,004 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-10-13 11:58:02,005 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 [2024-10-13 11:58:02,044 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 [2024-10-13 11:58:02,084 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-10-13 11:58:02,084 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 11:58:02,414 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:58:02,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1269381208] [2024-10-13 11:58:02,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1269381208] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 11:58:02,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [68486116] [2024-10-13 11:58:02,415 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-13 11:58:02,415 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-10-13 11:58:02,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-10-13 11:58:02,418 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) [2024-10-13 11:58:02,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process