./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_SFH_test2-1.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_SFH_test2-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 69d24e9affd7540aafb8052ecd737d7732ca2a63c7e8e16adc4217413d1d99a5 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 12:03:35,113 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 12:03:35,252 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-13 12:03:35,268 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 12:03:35,268 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 12:03:35,307 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 12:03:35,311 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 12:03:35,313 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 12:03:35,314 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 12:03:35,314 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 12:03:35,314 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 12:03:35,314 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 12:03:35,315 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 12:03:35,315 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 12:03:35,315 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 12:03:35,315 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 12:03:35,316 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 12:03:35,316 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 12:03:35,316 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 12:03:35,316 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 12:03:35,316 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-13 12:03:35,323 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-13 12:03:35,324 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-13 12:03:35,324 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 12:03:35,324 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-13 12:03:35,324 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 12:03:35,328 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 12:03:35,328 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 12:03:35,328 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 12:03:35,329 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 12:03:35,329 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 12:03:35,329 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 12:03:35,329 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 12:03:35,329 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 12:03:35,329 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 12:03:35,330 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 12:03:35,330 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 12:03:35,330 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 12:03:35,333 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 12:03:35,333 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 12:03:35,333 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 12:03:35,334 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 12:03:35,334 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 69d24e9affd7540aafb8052ecd737d7732ca2a63c7e8e16adc4217413d1d99a5 [2024-10-13 12:03:35,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 12:03:35,749 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 12:03:35,756 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 12:03:35,757 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 12:03:35,761 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 12:03:35,762 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test2-1.i [2024-10-13 12:03:37,434 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 12:03:37,733 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 12:03:37,735 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test2-1.i [2024-10-13 12:03:37,751 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3564c1be3/c3c16be4dfda4903944af665cfdfa06b/FLAG511088677 [2024-10-13 12:03:37,763 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3564c1be3/c3c16be4dfda4903944af665cfdfa06b [2024-10-13 12:03:37,765 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 12:03:37,767 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 12:03:37,769 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 12:03:37,769 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 12:03:37,773 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 12:03:37,774 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:03:37" (1/1) ... [2024-10-13 12:03:37,775 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2664776f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:37, skipping insertion in model container [2024-10-13 12:03:37,776 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:03:37" (1/1) ... [2024-10-13 12:03:37,823 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 12:03:38,309 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:03:38,322 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 12:03:38,327 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@aa31f7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:38, skipping insertion in model container [2024-10-13 12:03:38,328 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 12:03:38,328 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-10-13 12:03:38,330 INFO L158 Benchmark]: Toolchain (without parser) took 562.46ms. Allocated memory is still 184.5MB. Free memory was 151.7MB in the beginning and 130.8MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-13 12:03:38,331 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 121.6MB. Free memory was 83.6MB in the beginning and 83.5MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 12:03:38,331 INFO L158 Benchmark]: CACSL2BoogieTranslator took 559.70ms. Allocated memory is still 184.5MB. Free memory was 151.7MB in the beginning and 130.8MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-13 12:03:38,332 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 121.6MB. Free memory was 83.6MB in the beginning and 83.5MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 559.70ms. Allocated memory is still 184.5MB. Free memory was 151.7MB in the beginning and 130.8MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 815]: 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_SFH_test2-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 69d24e9affd7540aafb8052ecd737d7732ca2a63c7e8e16adc4217413d1d99a5 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 12:03:40,607 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 12:03:40,676 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-10-13 12:03:40,682 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 12:03:40,683 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 12:03:40,707 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 12:03:40,710 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 12:03:40,710 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 12:03:40,711 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 12:03:40,711 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 12:03:40,712 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 12:03:40,713 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 12:03:40,713 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 12:03:40,713 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 12:03:40,714 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 12:03:40,716 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 12:03:40,716 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 12:03:40,716 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 12:03:40,717 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 12:03:40,717 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 12:03:40,717 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-13 12:03:40,717 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-13 12:03:40,720 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-13 12:03:40,720 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 12:03:40,720 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-13 12:03:40,720 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-13 12:03:40,721 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 12:03:40,721 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-13 12:03:40,721 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 12:03:40,721 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 12:03:40,721 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 12:03:40,722 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 12:03:40,722 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 12:03:40,722 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 12:03:40,722 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 12:03:40,722 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 12:03:40,722 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 12:03:40,723 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 12:03:40,723 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-13 12:03:40,723 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-13 12:03:40,723 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 12:03:40,724 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 12:03:40,724 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 12:03:40,724 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 12:03:40,725 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-13 12:03:40,725 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 69d24e9affd7540aafb8052ecd737d7732ca2a63c7e8e16adc4217413d1d99a5 [2024-10-13 12:03:41,116 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 12:03:41,142 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 12:03:41,145 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 12:03:41,147 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 12:03:41,148 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 12:03:41,149 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test2-1.i [2024-10-13 12:03:42,695 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 12:03:43,008 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 12:03:43,008 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test2-1.i [2024-10-13 12:03:43,037 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/865e6c6b4/f7ac66fba17046f48340cb5b8851b768/FLAG7dac4463c [2024-10-13 12:03:43,277 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/865e6c6b4/f7ac66fba17046f48340cb5b8851b768 [2024-10-13 12:03:43,279 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 12:03:43,281 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 12:03:43,282 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 12:03:43,283 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 12:03:43,287 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 12:03:43,287 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:03:43" (1/1) ... [2024-10-13 12:03:43,288 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a5b296d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:43, skipping insertion in model container [2024-10-13 12:03:43,288 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:03:43" (1/1) ... [2024-10-13 12:03:43,339 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 12:03:43,760 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:03:43,770 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-10-13 12:03:43,790 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 12:03:43,883 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:03:43,893 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 12:03:43,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:03:44,033 INFO L204 MainTranslator]: Completed translation [2024-10-13 12:03:44,033 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:44 WrapperNode [2024-10-13 12:03:44,033 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 12:03:44,034 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 12:03:44,035 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 12:03:44,038 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 12:03:44,043 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:44" (1/1) ... [2024-10-13 12:03:44,075 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:44" (1/1) ... [2024-10-13 12:03:44,175 INFO L138 Inliner]: procedures = 211, calls = 229, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 915 [2024-10-13 12:03:44,175 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 12:03:44,176 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 12:03:44,176 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 12:03:44,176 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 12:03:44,196 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:44" (1/1) ... [2024-10-13 12:03:44,199 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:44" (1/1) ... [2024-10-13 12:03:44,214 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:44" (1/1) ... [2024-10-13 12:03:44,270 INFO L175 MemorySlicer]: Split 208 memory accesses to 3 slices as follows [2, 172, 34]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 46 writes are split as follows [0, 42, 4]. [2024-10-13 12:03:44,271 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:44" (1/1) ... [2024-10-13 12:03:44,271 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:44" (1/1) ... [2024-10-13 12:03:44,295 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:44" (1/1) ... [2024-10-13 12:03:44,301 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:44" (1/1) ... [2024-10-13 12:03:44,304 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:44" (1/1) ... [2024-10-13 12:03:44,307 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:44" (1/1) ... [2024-10-13 12:03:44,313 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 12:03:44,315 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 12:03:44,316 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 12:03:44,316 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 12:03:44,316 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:44" (1/1) ... [2024-10-13 12:03:44,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 12:03:44,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 12:03:44,354 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 12:03:44,361 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 12:03:44,401 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-10-13 12:03:44,401 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-10-13 12:03:44,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-10-13 12:03:44,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-10-13 12:03:44,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-10-13 12:03:44,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-13 12:03:44,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-13 12:03:44,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-13 12:03:44,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-10-13 12:03:44,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-10-13 12:03:44,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-10-13 12:03:44,403 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-10-13 12:03:44,403 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-10-13 12:03:44,403 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-10-13 12:03:44,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-13 12:03:44,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-13 12:03:44,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-13 12:03:44,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-13 12:03:44,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-13 12:03:44,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-13 12:03:44,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-13 12:03:44,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-13 12:03:44,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-13 12:03:44,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-13 12:03:44,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-13 12:03:44,405 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-13 12:03:44,405 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-13 12:03:44,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-13 12:03:44,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 12:03:44,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-13 12:03:44,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-13 12:03:44,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-13 12:03:44,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 12:03:44,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 12:03:44,620 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 12:03:44,623 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 12:03:44,658 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-13 12:03:44,702 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-13 12:03:44,732 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-13 12:03:48,298 INFO L? ?]: Removed 878 outVars from TransFormulas that were not future-live. [2024-10-13 12:03:48,299 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 12:03:48,432 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 12:03:48,433 INFO L314 CfgBuilder]: Removed 54 assume(true) statements. [2024-10-13 12:03:48,433 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:03:48 BoogieIcfgContainer [2024-10-13 12:03:48,433 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 12:03:48,435 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 12:03:48,435 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 12:03:48,438 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 12:03:48,439 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:03:43" (1/3) ... [2024-10-13 12:03:48,440 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8345de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:03:48, skipping insertion in model container [2024-10-13 12:03:48,440 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:44" (2/3) ... [2024-10-13 12:03:48,440 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8345de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:03:48, skipping insertion in model container [2024-10-13 12:03:48,440 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:03:48" (3/3) ... [2024-10-13 12:03:48,441 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test2-1.i [2024-10-13 12:03:48,458 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 12:03:48,459 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 424 error locations. [2024-10-13 12:03:48,522 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 12:03:48,528 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;@1e07c46a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 12:03:48,529 INFO L334 AbstractCegarLoop]: Starting to check reachability of 424 error locations. [2024-10-13 12:03:48,535 INFO L276 IsEmpty]: Start isEmpty. Operand has 795 states, 360 states have (on average 2.477777777777778) internal successors, (892), 788 states have internal predecessors, (892), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-13 12:03:48,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-10-13 12:03:48,541 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:03:48,541 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-10-13 12:03:48,542 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-10-13 12:03:48,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:03:48,547 INFO L85 PathProgramCache]: Analyzing trace with hash 47005, now seen corresponding path program 1 times [2024-10-13 12:03:48,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:03:48,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [535438994] [2024-10-13 12:03:48,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:03:48,560 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 12:03:48,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:03:48,564 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 12:03:48,583 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 (2)] Waiting until timeout for monitored process [2024-10-13 12:03:48,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:03:48,727 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 12:03:48,736 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:03:48,774 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-13 12:03:48,788 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 12:03:48,788 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:03:48,789 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:03:48,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [535438994] [2024-10-13 12:03:48,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [535438994] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:03:48,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:03:48,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 12:03:48,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783614947] [2024-10-13 12:03:48,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:03:48,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:03:48,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:03:48,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:03:48,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:03:48,836 INFO L87 Difference]: Start difference. First operand has 795 states, 360 states have (on average 2.477777777777778) internal successors, (892), 788 states have internal predecessors, (892), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:03:50,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:03:50,054 INFO L93 Difference]: Finished difference Result 781 states and 838 transitions. [2024-10-13 12:03:50,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:03:50,057 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2024-10-13 12:03:50,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:03:50,068 INFO L225 Difference]: With dead ends: 781 [2024-10-13 12:03:50,069 INFO L226 Difference]: Without dead ends: 780 [2024-10-13 12:03:50,070 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:03:50,079 INFO L432 NwaCegarLoop]: 439 mSDtfsCounter, 714 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 722 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-13 12:03:50,079 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [722 Valid, 480 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-13 12:03:50,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2024-10-13 12:03:50,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 780. [2024-10-13 12:03:50,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 780 states, 363 states have (on average 2.256198347107438) internal successors, (819), 773 states have internal predecessors, (819), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-13 12:03:50,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 837 transitions. [2024-10-13 12:03:50,132 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 837 transitions. Word has length 2 [2024-10-13 12:03:50,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:03:50,132 INFO L471 AbstractCegarLoop]: Abstraction has 780 states and 837 transitions. [2024-10-13 12:03:50,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:03:50,133 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 837 transitions. [2024-10-13 12:03:50,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-10-13 12:03:50,133 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:03:50,133 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-10-13 12:03:50,166 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 12:03:50,334 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 12:03:50,334 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-10-13 12:03:50,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:03:50,335 INFO L85 PathProgramCache]: Analyzing trace with hash 47006, now seen corresponding path program 1 times [2024-10-13 12:03:50,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:03:50,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1541210570] [2024-10-13 12:03:50,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:03:50,336 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 12:03:50,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:03:50,339 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 12:03:50,341 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 12:03:50,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:03:50,466 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 12:03:50,468 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:03:50,481 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 12:03:50,493 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 12:03:50,497 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:03:50,497 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:03:50,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1541210570] [2024-10-13 12:03:50,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1541210570] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:03:50,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:03:50,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 12:03:50,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497438052] [2024-10-13 12:03:50,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:03:50,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:03:50,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:03:50,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:03:50,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:03:50,500 INFO L87 Difference]: Start difference. First operand 780 states and 837 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:03:52,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:03:52,005 INFO L93 Difference]: Finished difference Result 984 states and 1073 transitions. [2024-10-13 12:03:52,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:03:52,006 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2024-10-13 12:03:52,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:03:52,010 INFO L225 Difference]: With dead ends: 984 [2024-10-13 12:03:52,010 INFO L226 Difference]: Without dead ends: 984 [2024-10-13 12:03:52,010 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:03:52,011 INFO L432 NwaCegarLoop]: 665 mSDtfsCounter, 225 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 1066 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-13 12:03:52,011 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 1066 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-13 12:03:52,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2024-10-13 12:03:52,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 896. [2024-10-13 12:03:52,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 896 states, 475 states have (on average 2.1957894736842105) internal successors, (1043), 889 states have internal predecessors, (1043), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-13 12:03:52,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1071 transitions. [2024-10-13 12:03:52,052 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1071 transitions. Word has length 2 [2024-10-13 12:03:52,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:03:52,052 INFO L471 AbstractCegarLoop]: Abstraction has 896 states and 1071 transitions. [2024-10-13 12:03:52,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:03:52,052 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1071 transitions. [2024-10-13 12:03:52,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-13 12:03:52,053 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:03:52,053 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-13 12:03:52,062 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-10-13 12:03:52,261 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 12:03:52,262 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-10-13 12:03:52,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:03:52,263 INFO L85 PathProgramCache]: Analyzing trace with hash 460900519, now seen corresponding path program 1 times [2024-10-13 12:03:52,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:03:52,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1471959955] [2024-10-13 12:03:52,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:03:52,264 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 12:03:52,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:03:52,267 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 12:03:52,269 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 12:03:52,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:03:52,388 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 12:03:52,390 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:03:52,404 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 12:03:52,425 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 12:03:52,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 12:03:52,520 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 12:03:52,543 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-13 12:03:52,544 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 12:03:52,584 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 12:03:52,584 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:03:52,585 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:03:52,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1471959955] [2024-10-13 12:03:52,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1471959955] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:03:52,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:03:52,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 12:03:52,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158408088] [2024-10-13 12:03:52,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:03:52,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:03:52,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:03:52,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:03:52,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:03:52,587 INFO L87 Difference]: Start difference. First operand 896 states and 1071 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:03:54,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:03:54,672 INFO L93 Difference]: Finished difference Result 885 states and 1059 transitions. [2024-10-13 12:03:54,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 12:03:54,673 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-10-13 12:03:54,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:03:54,679 INFO L225 Difference]: With dead ends: 885 [2024-10-13 12:03:54,683 INFO L226 Difference]: Without dead ends: 885 [2024-10-13 12:03:54,683 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:03:54,684 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 786 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-13 12:03:54,685 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [794 Valid, 259 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-13 12:03:54,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2024-10-13 12:03:54,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 768. [2024-10-13 12:03:54,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 768 states, 363 states have (on average 2.2203856749311295) internal successors, (806), 761 states have internal predecessors, (806), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-13 12:03:54,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 824 transitions. [2024-10-13 12:03:54,730 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 824 transitions. Word has length 6 [2024-10-13 12:03:54,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:03:54,731 INFO L471 AbstractCegarLoop]: Abstraction has 768 states and 824 transitions. [2024-10-13 12:03:54,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:03:54,731 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 824 transitions. [2024-10-13 12:03:54,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-13 12:03:54,731 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:03:54,731 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:03:54,739 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-10-13 12:03:54,932 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 12:03:54,932 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-10-13 12:03:54,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:03:54,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1403014203, now seen corresponding path program 1 times [2024-10-13 12:03:54,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:03:54,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1618181325] [2024-10-13 12:03:54,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:03:54,934 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 12:03:54,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:03:54,938 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 12:03:54,939 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 12:03:55,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:03:55,091 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 12:03:55,093 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:03:55,109 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 12:03:55,148 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 12:03:55,148 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:03:55,148 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:03:55,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1618181325] [2024-10-13 12:03:55,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1618181325] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:03:55,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:03:55,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 12:03:55,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056758458] [2024-10-13 12:03:55,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:03:55,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:03:55,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:03:55,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:03:55,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:03:55,153 INFO L87 Difference]: Start difference. First operand 768 states and 824 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:03:58,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:03:58,159 INFO L93 Difference]: Finished difference Result 1038 states and 1132 transitions. [2024-10-13 12:03:58,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:03:58,160 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-10-13 12:03:58,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:03:58,172 INFO L225 Difference]: With dead ends: 1038 [2024-10-13 12:03:58,176 INFO L226 Difference]: Without dead ends: 1038 [2024-10-13 12:03:58,178 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:03:58,179 INFO L432 NwaCegarLoop]: 756 mSDtfsCounter, 462 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 1034 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-10-13 12:03:58,180 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [467 Valid, 1034 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-10-13 12:03:58,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2024-10-13 12:03:58,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 785. [2024-10-13 12:03:58,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 785 states, 390 states have (on average 2.2153846153846155) internal successors, (864), 778 states have internal predecessors, (864), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-13 12:03:58,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 882 transitions. [2024-10-13 12:03:58,230 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 882 transitions. Word has length 7 [2024-10-13 12:03:58,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:03:58,231 INFO L471 AbstractCegarLoop]: Abstraction has 785 states and 882 transitions. [2024-10-13 12:03:58,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:03:58,231 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 882 transitions. [2024-10-13 12:03:58,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-13 12:03:58,231 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:03:58,231 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:03:58,241 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 12:03:58,432 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 12:03:58,433 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-10-13 12:03:58,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:03:58,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1403014202, now seen corresponding path program 1 times [2024-10-13 12:03:58,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:03:58,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1926885154] [2024-10-13 12:03:58,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:03:58,434 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 12:03:58,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:03:58,437 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 12:03:58,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-10-13 12:03:58,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:03:58,522 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 12:03:58,523 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:03:58,529 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 12:03:58,539 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 12:03:58,539 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:03:58,540 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:03:58,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1926885154] [2024-10-13 12:03:58,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1926885154] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:03:58,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:03:58,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 12:03:58,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808787049] [2024-10-13 12:03:58,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:03:58,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:03:58,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:03:58,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:03:58,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:03:58,541 INFO L87 Difference]: Start difference. First operand 785 states and 882 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:03:59,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:03:59,764 INFO L93 Difference]: Finished difference Result 943 states and 1068 transitions. [2024-10-13 12:03:59,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:03:59,765 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-10-13 12:03:59,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:03:59,768 INFO L225 Difference]: With dead ends: 943 [2024-10-13 12:03:59,768 INFO L226 Difference]: Without dead ends: 943 [2024-10-13 12:03:59,769 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:03:59,769 INFO L432 NwaCegarLoop]: 574 mSDtfsCounter, 681 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-13 12:03:59,769 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [689 Valid, 724 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-13 12:03:59,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 943 states. [2024-10-13 12:03:59,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 943 to 738. [2024-10-13 12:03:59,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 738 states, 390 states have (on average 2.0846153846153848) internal successors, (813), 731 states have internal predecessors, (813), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-13 12:03:59,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 738 states to 738 states and 831 transitions. [2024-10-13 12:03:59,783 INFO L78 Accepts]: Start accepts. Automaton has 738 states and 831 transitions. Word has length 7 [2024-10-13 12:03:59,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:03:59,784 INFO L471 AbstractCegarLoop]: Abstraction has 738 states and 831 transitions. [2024-10-13 12:03:59,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:03:59,784 INFO L276 IsEmpty]: Start isEmpty. Operand 738 states and 831 transitions. [2024-10-13 12:03:59,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-13 12:03:59,784 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:03:59,784 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:03:59,789 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2024-10-13 12:03:59,985 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 12:03:59,985 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr422ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-10-13 12:03:59,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:03:59,986 INFO L85 PathProgramCache]: Analyzing trace with hash 469131321, now seen corresponding path program 1 times [2024-10-13 12:03:59,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:03:59,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1647793815] [2024-10-13 12:03:59,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:03:59,987 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 12:03:59,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:03:59,988 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 12:03:59,990 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 12:04:00,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:04:00,137 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 12:04:00,139 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:04:00,147 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-13 12:04:00,147 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-13 12:04:00,149 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-13 12:04:00,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2024-10-13 12:04:00,224 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 12:04:00,225 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2024-10-13 12:04:00,244 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 12:04:00,244 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:04:00,245 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:04:00,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1647793815] [2024-10-13 12:04:00,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1647793815] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:04:00,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:04:00,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 12:04:00,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484076946] [2024-10-13 12:04:00,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:04:00,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:04:00,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:04:00,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:04:00,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:04:00,248 INFO L87 Difference]: Start difference. First operand 738 states and 831 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 12:04:01,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:04:01,228 INFO L93 Difference]: Finished difference Result 1459 states and 1647 transitions. [2024-10-13 12:04:01,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 12:04:01,229 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2024-10-13 12:04:01,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:04:01,233 INFO L225 Difference]: With dead ends: 1459 [2024-10-13 12:04:01,233 INFO L226 Difference]: Without dead ends: 1459 [2024-10-13 12:04:01,233 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 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 12:04:01,234 INFO L432 NwaCegarLoop]: 653 mSDtfsCounter, 723 mSDsluCounter, 1294 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 731 SdHoareTripleChecker+Valid, 1947 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-13 12:04:01,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [731 Valid, 1947 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-13 12:04:01,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1459 states. [2024-10-13 12:04:01,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1459 to 740. [2024-10-13 12:04:01,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 740 states, 392 states have (on average 2.079081632653061) internal successors, (815), 733 states have internal predecessors, (815), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-13 12:04:01,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 833 transitions. [2024-10-13 12:04:01,248 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 833 transitions. Word has length 9 [2024-10-13 12:04:01,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:04:01,248 INFO L471 AbstractCegarLoop]: Abstraction has 740 states and 833 transitions. [2024-10-13 12:04:01,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 12:04:01,249 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 833 transitions. [2024-10-13 12:04:01,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-13 12:04:01,249 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:04:01,249 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:04:01,256 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-10-13 12:04:01,449 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 12:04:01,450 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-10-13 12:04:01,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:04:01,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1384503377, now seen corresponding path program 1 times [2024-10-13 12:04:01,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:04:01,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [974759189] [2024-10-13 12:04:01,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:04:01,451 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 12:04:01,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:04:01,454 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 12:04:01,455 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 12:04:01,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:04:01,564 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 12:04:01,565 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:04:01,576 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 12:04:01,577 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:04:01,577 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:04:01,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [974759189] [2024-10-13 12:04:01,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [974759189] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:04:01,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:04:01,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 12:04:01,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809600398] [2024-10-13 12:04:01,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:04:01,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:04:01,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:04:01,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:04:01,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:04:01,579 INFO L87 Difference]: Start difference. First operand 740 states and 833 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:04:01,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:04:01,985 INFO L93 Difference]: Finished difference Result 701 states and 793 transitions. [2024-10-13 12:04:01,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:04:01,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-10-13 12:04:01,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:04:01,988 INFO L225 Difference]: With dead ends: 701 [2024-10-13 12:04:01,988 INFO L226 Difference]: Without dead ends: 701 [2024-10-13 12:04:01,988 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:04:01,989 INFO L432 NwaCegarLoop]: 624 mSDtfsCounter, 61 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 1206 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 12:04:01,989 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 1206 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 12:04:01,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2024-10-13 12:04:02,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 701. [2024-10-13 12:04:02,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 377 states have (on average 2.055702917771883) internal successors, (775), 694 states have internal predecessors, (775), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-13 12:04:02,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 793 transitions. [2024-10-13 12:04:02,022 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 793 transitions. Word has length 15 [2024-10-13 12:04:02,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:04:02,023 INFO L471 AbstractCegarLoop]: Abstraction has 701 states and 793 transitions. [2024-10-13 12:04:02,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:04:02,023 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 793 transitions. [2024-10-13 12:04:02,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-13 12:04:02,023 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:04:02,024 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:04:02,029 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 12:04:02,224 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 12:04:02,225 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-10-13 12:04:02,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:04:02,225 INFO L85 PathProgramCache]: Analyzing trace with hash -932119221, now seen corresponding path program 1 times [2024-10-13 12:04:02,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:04:02,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1953317706] [2024-10-13 12:04:02,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:04:02,226 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 12:04:02,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:04:02,229 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 12:04:02,236 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 12:04:02,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:04:02,350 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 12:04:02,351 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:04:02,372 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 12:04:02,372 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:04:02,372 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:04:02,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1953317706] [2024-10-13 12:04:02,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1953317706] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:04:02,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:04:02,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 12:04:02,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751171500] [2024-10-13 12:04:02,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:04:02,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:04:02,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:04:02,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:04:02,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:04:02,375 INFO L87 Difference]: Start difference. First operand 701 states and 793 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:04:02,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:04:02,930 INFO L93 Difference]: Finished difference Result 686 states and 771 transitions. [2024-10-13 12:04:02,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 12:04:02,931 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-10-13 12:04:02,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:04:02,933 INFO L225 Difference]: With dead ends: 686 [2024-10-13 12:04:02,933 INFO L226 Difference]: Without dead ends: 686 [2024-10-13 12:04:02,934 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 12:04:02,934 INFO L432 NwaCegarLoop]: 593 mSDtfsCounter, 45 mSDsluCounter, 1168 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 1761 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-13 12:04:02,934 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 1761 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-13 12:04:02,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2024-10-13 12:04:02,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 686. [2024-10-13 12:04:02,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 376 states have (on average 2.002659574468085) internal successors, (753), 679 states have internal predecessors, (753), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-13 12:04:02,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 771 transitions. [2024-10-13 12:04:02,943 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 771 transitions. Word has length 17 [2024-10-13 12:04:02,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:04:02,943 INFO L471 AbstractCegarLoop]: Abstraction has 686 states and 771 transitions. [2024-10-13 12:04:02,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:04:02,943 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 771 transitions. [2024-10-13 12:04:02,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-13 12:04:02,944 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:04:02,944 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:04:02,953 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 12:04:03,144 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 12:04:03,145 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-10-13 12:04:03,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:04:03,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1310162457, now seen corresponding path program 1 times [2024-10-13 12:04:03,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:04:03,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1936283780] [2024-10-13 12:04:03,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:04:03,146 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 12:04:03,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:04:03,149 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 12:04:03,150 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 12:04:03,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:04:03,416 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 12:04:03,421 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:04:03,436 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 12:04:03,518 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 12:04:03,518 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:04:03,519 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:04:03,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1936283780] [2024-10-13 12:04:03,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1936283780] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:04:03,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:04:03,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 12:04:03,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869040512] [2024-10-13 12:04:03,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:04:03,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:04:03,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:04:03,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:04:03,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:04:03,520 INFO L87 Difference]: Start difference. First operand 686 states and 771 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:04:04,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:04:04,642 INFO L93 Difference]: Finished difference Result 686 states and 771 transitions. [2024-10-13 12:04:04,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 12:04:04,643 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2024-10-13 12:04:04,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:04:04,645 INFO L225 Difference]: With dead ends: 686 [2024-10-13 12:04:04,645 INFO L226 Difference]: Without dead ends: 686 [2024-10-13 12:04:04,645 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 12:04:04,645 INFO L432 NwaCegarLoop]: 328 mSDtfsCounter, 623 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 798 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 631 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-13 12:04:04,646 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [631 Valid, 613 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 798 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-13 12:04:04,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2024-10-13 12:04:04,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 682. [2024-10-13 12:04:04,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 376 states have (on average 1.9920212765957446) internal successors, (749), 675 states have internal predecessors, (749), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-13 12:04:04,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 767 transitions. [2024-10-13 12:04:04,655 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 767 transitions. Word has length 31 [2024-10-13 12:04:04,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:04:04,656 INFO L471 AbstractCegarLoop]: Abstraction has 682 states and 767 transitions. [2024-10-13 12:04:04,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:04:04,656 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 767 transitions. [2024-10-13 12:04:04,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-13 12:04:04,657 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:04:04,657 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:04:04,664 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-10-13 12:04:04,860 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 12:04:04,861 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-10-13 12:04:04,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:04:04,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1310162458, now seen corresponding path program 1 times [2024-10-13 12:04:04,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:04:04,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1368783683] [2024-10-13 12:04:04,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:04:04,862 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 12:04:04,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:04:04,865 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 12:04:04,867 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 12:04:04,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:04:04,992 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-13 12:04:04,994 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:04:05,005 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 12:04:05,129 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 12:04:05,130 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:04:05,130 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:04:05,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1368783683] [2024-10-13 12:04:05,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1368783683] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:04:05,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:04:05,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 12:04:05,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764057895] [2024-10-13 12:04:05,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:04:05,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:04:05,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:04:05,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:04:05,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:04:05,132 INFO L87 Difference]: Start difference. First operand 682 states and 767 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:04:06,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:04:06,784 INFO L93 Difference]: Finished difference Result 935 states and 1017 transitions. [2024-10-13 12:04:06,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 12:04:06,785 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2024-10-13 12:04:06,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:04:06,787 INFO L225 Difference]: With dead ends: 935 [2024-10-13 12:04:06,788 INFO L226 Difference]: Without dead ends: 935 [2024-10-13 12:04:06,788 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 12:04:06,789 INFO L432 NwaCegarLoop]: 478 mSDtfsCounter, 400 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-13 12:04:06,789 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 1039 Invalid, 898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 895 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-13 12:04:06,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 935 states. [2024-10-13 12:04:06,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 935 to 678. [2024-10-13 12:04:06,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 376 states have (on average 1.9813829787234043) internal successors, (745), 671 states have internal predecessors, (745), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-13 12:04:06,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 763 transitions. [2024-10-13 12:04:06,800 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 763 transitions. Word has length 31 [2024-10-13 12:04:06,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:04:06,801 INFO L471 AbstractCegarLoop]: Abstraction has 678 states and 763 transitions. [2024-10-13 12:04:06,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:04:06,801 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 763 transitions. [2024-10-13 12:04:06,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-13 12:04:06,802 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:04:06,802 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] [2024-10-13 12:04:06,808 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 (11)] Forceful destruction successful, exit code 0 [2024-10-13 12:04:07,003 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 12:04:07,004 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr117REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-10-13 12:04:07,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:04:07,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1916251283, now seen corresponding path program 1 times [2024-10-13 12:04:07,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:04:07,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1358895920] [2024-10-13 12:04:07,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:04:07,005 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 12:04:07,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:04:07,008 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 12:04:07,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-10-13 12:04:07,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:04:07,201 INFO L255 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 12:04:07,204 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:04:07,242 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 12:04:07,243 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:04:07,243 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:04:07,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1358895920] [2024-10-13 12:04:07,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1358895920] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:04:07,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:04:07,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 12:04:07,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070398775] [2024-10-13 12:04:07,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:04:07,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:04:07,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:04:07,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:04:07,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:04:07,245 INFO L87 Difference]: Start difference. First operand 678 states and 763 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 12:04:07,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:04:07,907 INFO L93 Difference]: Finished difference Result 672 states and 753 transitions. [2024-10-13 12:04:07,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 12:04:07,908 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 47 [2024-10-13 12:04:07,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:04:07,910 INFO L225 Difference]: With dead ends: 672 [2024-10-13 12:04:07,910 INFO L226 Difference]: Without dead ends: 672 [2024-10-13 12:04:07,910 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 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 12:04:07,911 INFO L432 NwaCegarLoop]: 587 mSDtfsCounter, 15 mSDsluCounter, 1157 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 1744 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-13 12:04:07,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 1744 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-13 12:04:07,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2024-10-13 12:04:07,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 672. [2024-10-13 12:04:07,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 370 states have (on average 1.9864864864864864) internal successors, (735), 665 states have internal predecessors, (735), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-13 12:04:07,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 753 transitions. [2024-10-13 12:04:07,919 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 753 transitions. Word has length 47 [2024-10-13 12:04:07,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:04:07,920 INFO L471 AbstractCegarLoop]: Abstraction has 672 states and 753 transitions. [2024-10-13 12:04:07,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 12:04:07,920 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 753 transitions. [2024-10-13 12:04:07,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-10-13 12:04:07,921 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:04:07,921 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:04:07,927 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 12:04:08,121 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 12:04:08,122 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr117REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-10-13 12:04:08,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:04:08,122 INFO L85 PathProgramCache]: Analyzing trace with hash 227917556, now seen corresponding path program 1 times [2024-10-13 12:04:08,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:04:08,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1549242753] [2024-10-13 12:04:08,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:04:08,123 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 12:04:08,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:04:08,126 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 12:04:08,127 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 12:04:08,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:04:08,595 INFO L255 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 12:04:08,597 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:04:08,910 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 12:04:08,910 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:04:08,910 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:04:08,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1549242753] [2024-10-13 12:04:08,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1549242753] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:04:08,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:04:08,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 12:04:08,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864147326] [2024-10-13 12:04:08,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:04:08,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:04:08,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:04:08,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:04:08,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:04:08,912 INFO L87 Difference]: Start difference. First operand 672 states and 753 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 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 12:04:09,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:04:09,434 INFO L93 Difference]: Finished difference Result 853 states and 957 transitions. [2024-10-13 12:04:09,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:04:09,438 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 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 51 [2024-10-13 12:04:09,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:04:09,441 INFO L225 Difference]: With dead ends: 853 [2024-10-13 12:04:09,441 INFO L226 Difference]: Without dead ends: 853 [2024-10-13 12:04:09,442 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 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 12:04:09,446 INFO L432 NwaCegarLoop]: 712 mSDtfsCounter, 146 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 1270 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-13 12:04:09,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 1270 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-13 12:04:09,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2024-10-13 12:04:09,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 799. [2024-10-13 12:04:09,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 799 states, 492 states have (on average 1.8821138211382114) internal successors, (926), 792 states have internal predecessors, (926), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-13 12:04:09,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 954 transitions. [2024-10-13 12:04:09,485 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 954 transitions. Word has length 51 [2024-10-13 12:04:09,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:04:09,489 INFO L471 AbstractCegarLoop]: Abstraction has 799 states and 954 transitions. [2024-10-13 12:04:09,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 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 12:04:09,490 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 954 transitions. [2024-10-13 12:04:09,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-13 12:04:09,490 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:04:09,490 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] [2024-10-13 12:04:09,503 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 12:04:09,691 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 12:04:09,691 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-10-13 12:04:09,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:04:09,692 INFO L85 PathProgramCache]: Analyzing trace with hash -558822258, now seen corresponding path program 1 times [2024-10-13 12:04:09,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:04:09,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1481497051] [2024-10-13 12:04:09,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:04:09,694 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 12:04:09,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:04:09,695 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 12:04:09,697 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 12:04:09,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:04:09,981 INFO L255 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 12:04:09,984 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:04:10,003 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 12:04:10,011 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 12:04:10,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 12:04:10,365 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 12:04:10,376 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-13 12:04:10,376 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 12:04:10,385 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 12:04:10,385 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:04:10,386 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:04:10,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1481497051] [2024-10-13 12:04:10,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1481497051] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:04:10,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:04:10,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 12:04:10,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850933466] [2024-10-13 12:04:10,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:04:10,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:04:10,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:04:10,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:04:10,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:04:10,387 INFO L87 Difference]: Start difference. First operand 799 states and 954 transitions. Second operand has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 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 12:04:11,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:04:11,432 INFO L93 Difference]: Finished difference Result 761 states and 916 transitions. [2024-10-13 12:04:11,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 12:04:11,432 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 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 54 [2024-10-13 12:04:11,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:04:11,439 INFO L225 Difference]: With dead ends: 761 [2024-10-13 12:04:11,439 INFO L226 Difference]: Without dead ends: 761 [2024-10-13 12:04:11,439 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 51 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 12:04:11,440 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 1114 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1122 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-13 12:04:11,440 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1122 Valid, 203 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-13 12:04:11,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2024-10-13 12:04:11,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 734. [2024-10-13 12:04:11,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 465 states have (on average 1.772043010752688) internal successors, (824), 727 states have internal predecessors, (824), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-13 12:04:11,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 852 transitions. [2024-10-13 12:04:11,485 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 852 transitions. Word has length 54 [2024-10-13 12:04:11,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:04:11,486 INFO L471 AbstractCegarLoop]: Abstraction has 734 states and 852 transitions. [2024-10-13 12:04:11,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 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 12:04:11,490 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 852 transitions. [2024-10-13 12:04:11,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-13 12:04:11,491 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:04:11,491 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] [2024-10-13 12:04:11,501 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 12:04:11,692 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 12:04:11,692 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-10-13 12:04:11,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:04:11,693 INFO L85 PathProgramCache]: Analyzing trace with hash 277799603, now seen corresponding path program 1 times [2024-10-13 12:04:11,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:04:11,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2111128352] [2024-10-13 12:04:11,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:04:11,694 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 12:04:11,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:04:11,696 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 12:04:11,698 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 12:04:11,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:04:12,000 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-13 12:04:12,003 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:04:12,013 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 12:04:12,046 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 12:04:12,065 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 12:04:12,078 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 12:04:12,078 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:04:12,078 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:04:12,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2111128352] [2024-10-13 12:04:12,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2111128352] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:04:12,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:04:12,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 12:04:12,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817246253] [2024-10-13 12:04:12,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:04:12,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 12:04:12,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:04:12,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 12:04:12,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 12:04:12,080 INFO L87 Difference]: Start difference. First operand 734 states and 852 transitions. Second operand has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 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 12:04:13,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:04:13,333 INFO L93 Difference]: Finished difference Result 733 states and 851 transitions. [2024-10-13 12:04:13,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 12:04:13,333 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 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 58 [2024-10-13 12:04:13,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:04:13,335 INFO L225 Difference]: With dead ends: 733 [2024-10-13 12:04:13,335 INFO L226 Difference]: Without dead ends: 733 [2024-10-13 12:04:13,336 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 54 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 12:04:13,336 INFO L432 NwaCegarLoop]: 561 mSDtfsCounter, 2 mSDsluCounter, 945 mSDsCounter, 0 mSdLazyCounter, 1046 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1506 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-13 12:04:13,336 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1506 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1046 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-13 12:04:13,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2024-10-13 12:04:13,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 733. [2024-10-13 12:04:13,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 733 states, 465 states have (on average 1.7698924731182795) internal successors, (823), 726 states have internal predecessors, (823), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-13 12:04:13,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 851 transitions. [2024-10-13 12:04:13,347 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 851 transitions. Word has length 58 [2024-10-13 12:04:13,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:04:13,348 INFO L471 AbstractCegarLoop]: Abstraction has 733 states and 851 transitions. [2024-10-13 12:04:13,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 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 12:04:13,348 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 851 transitions. [2024-10-13 12:04:13,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-13 12:04:13,349 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:04:13,349 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] [2024-10-13 12:04:13,357 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2024-10-13 12:04:13,549 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 12:04:13,550 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-10-13 12:04:13,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:04:13,550 INFO L85 PathProgramCache]: Analyzing trace with hash 277799604, now seen corresponding path program 1 times [2024-10-13 12:04:13,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:04:13,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2091577936] [2024-10-13 12:04:13,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:04:13,551 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 12:04:13,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:04:13,553 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 12:04:13,555 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 12:04:13,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:04:13,783 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-13 12:04:13,785 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:04:13,800 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 12:04:13,812 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 12:04:13,818 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 12:04:13,845 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 12:04:13,857 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 12:04:13,858 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:04:13,858 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:04:13,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2091577936] [2024-10-13 12:04:13,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2091577936] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:04:13,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:04:13,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 12:04:13,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174475477] [2024-10-13 12:04:13,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:04:13,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 12:04:13,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:04:13,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 12:04:13,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 12:04:13,859 INFO L87 Difference]: Start difference. First operand 733 states and 851 transitions. Second operand has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 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 12:04:15,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:04:15,734 INFO L93 Difference]: Finished difference Result 732 states and 850 transitions. [2024-10-13 12:04:15,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 12:04:15,735 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 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 58 [2024-10-13 12:04:15,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:04:15,737 INFO L225 Difference]: With dead ends: 732 [2024-10-13 12:04:15,737 INFO L226 Difference]: Without dead ends: 732 [2024-10-13 12:04:15,737 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 54 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 12:04:15,737 INFO L432 NwaCegarLoop]: 561 mSDtfsCounter, 1 mSDsluCounter, 962 mSDsCounter, 0 mSdLazyCounter, 1026 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1523 SdHoareTripleChecker+Invalid, 1027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-13 12:04:15,738 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1523 Invalid, 1027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1026 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-13 12:04:15,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2024-10-13 12:04:15,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 732. [2024-10-13 12:04:15,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 464 states have (on average 1.771551724137931) internal successors, (822), 725 states have internal predecessors, (822), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-13 12:04:15,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 850 transitions. [2024-10-13 12:04:15,746 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 850 transitions. Word has length 58 [2024-10-13 12:04:15,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:04:15,747 INFO L471 AbstractCegarLoop]: Abstraction has 732 states and 850 transitions. [2024-10-13 12:04:15,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 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 12:04:15,747 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 850 transitions. [2024-10-13 12:04:15,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-13 12:04:15,747 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:04:15,748 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:04:15,759 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 12:04:15,951 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 12:04:15,952 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-10-13 12:04:15,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:04:15,952 INFO L85 PathProgramCache]: Analyzing trace with hash 2031959543, now seen corresponding path program 1 times [2024-10-13 12:04:15,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:04:15,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1813945317] [2024-10-13 12:04:15,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:04:15,953 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 12:04:15,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:04:15,956 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 12:04:15,957 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 12:04:16,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:04:16,177 INFO L255 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 12:04:16,179 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:04:16,195 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 12:04:16,195 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:04:16,195 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:04:16,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1813945317] [2024-10-13 12:04:16,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1813945317] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:04:16,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:04:16,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 12:04:16,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27031572] [2024-10-13 12:04:16,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:04:16,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:04:16,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:04:16,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:04:16,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:04:16,212 INFO L87 Difference]: Start difference. First operand 732 states and 850 transitions. Second operand has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 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 12:04:16,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:04:16,730 INFO L93 Difference]: Finished difference Result 734 states and 853 transitions. [2024-10-13 12:04:16,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 12:04:16,731 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 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 64 [2024-10-13 12:04:16,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:04:16,735 INFO L225 Difference]: With dead ends: 734 [2024-10-13 12:04:16,735 INFO L226 Difference]: Without dead ends: 734 [2024-10-13 12:04:16,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 61 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 12:04:16,736 INFO L432 NwaCegarLoop]: 561 mSDtfsCounter, 0 mSDsluCounter, 1119 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1680 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-13 12:04:16,736 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1680 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-13 12:04:16,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2024-10-13 12:04:16,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 734. [2024-10-13 12:04:16,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 465 states have (on average 1.772043010752688) internal successors, (824), 727 states have internal predecessors, (824), 15 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2024-10-13 12:04:16,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 853 transitions. [2024-10-13 12:04:16,747 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 853 transitions. Word has length 64 [2024-10-13 12:04:16,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:04:16,747 INFO L471 AbstractCegarLoop]: Abstraction has 734 states and 853 transitions. [2024-10-13 12:04:16,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 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 12:04:16,747 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 853 transitions. [2024-10-13 12:04:16,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-13 12:04:16,748 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:04:16,748 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:04:16,756 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 12:04:16,949 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 12:04:16,949 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-10-13 12:04:16,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:04:16,950 INFO L85 PathProgramCache]: Analyzing trace with hash 282811127, now seen corresponding path program 1 times [2024-10-13 12:04:16,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:04:16,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [430936520] [2024-10-13 12:04:16,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:04:16,951 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 12:04:16,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:04:16,953 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 12:04:16,954 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 12:04:17,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:04:17,186 INFO L255 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 12:04:17,187 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:04:17,204 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 12:04:17,204 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 12:04:17,254 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:04:17,255 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:04:17,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [430936520] [2024-10-13 12:04:17,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [430936520] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 12:04:17,255 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 12:04:17,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-10-13 12:04:17,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278520134] [2024-10-13 12:04:17,255 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 12:04:17,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 12:04:17,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:04:17,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 12:04:17,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-13 12:04:17,257 INFO L87 Difference]: Start difference. First operand 734 states and 853 transitions. Second operand has 8 states, 6 states have (on average 11.0) internal successors, (66), 8 states have internal predecessors, (66), 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 12:04:18,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:04:18,211 INFO L93 Difference]: Finished difference Result 743 states and 867 transitions. [2024-10-13 12:04:18,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 12:04:18,212 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 11.0) internal successors, (66), 8 states have internal predecessors, (66), 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 65 [2024-10-13 12:04:18,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:04:18,215 INFO L225 Difference]: With dead ends: 743 [2024-10-13 12:04:18,215 INFO L226 Difference]: Without dead ends: 743 [2024-10-13 12:04:18,215 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 122 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 12:04:18,216 INFO L432 NwaCegarLoop]: 560 mSDtfsCounter, 4 mSDsluCounter, 2790 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3350 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-13 12:04:18,216 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 3350 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-13 12:04:18,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2024-10-13 12:04:18,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 742. [2024-10-13 12:04:18,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 472 states have (on average 1.7733050847457628) internal successors, (837), 734 states have internal predecessors, (837), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2024-10-13 12:04:18,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 866 transitions. [2024-10-13 12:04:18,226 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 866 transitions. Word has length 65 [2024-10-13 12:04:18,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:04:18,226 INFO L471 AbstractCegarLoop]: Abstraction has 742 states and 866 transitions. [2024-10-13 12:04:18,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 11.0) internal successors, (66), 8 states have internal predecessors, (66), 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 12:04:18,226 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 866 transitions. [2024-10-13 12:04:18,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-13 12:04:18,227 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:04:18,227 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:04:18,235 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 12:04:18,427 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 12:04:18,428 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-10-13 12:04:18,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:04:18,428 INFO L85 PathProgramCache]: Analyzing trace with hash -2042855945, now seen corresponding path program 2 times [2024-10-13 12:04:18,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:04:18,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1978773316] [2024-10-13 12:04:18,429 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 12:04:18,429 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 12:04:18,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:04:18,434 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 12:04:18,437 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 12:04:18,890 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 12:04:18,890 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 12:04:18,908 INFO L255 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-13 12:04:18,910 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:04:18,950 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 12:04:18,950 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 12:04:19,075 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 12:04:19,076 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:04:19,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1978773316] [2024-10-13 12:04:19,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1978773316] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 12:04:19,076 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 12:04:19,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-10-13 12:04:19,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268487851] [2024-10-13 12:04:19,077 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 12:04:19,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-13 12:04:19,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:04:19,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-13 12:04:19,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-10-13 12:04:19,078 INFO L87 Difference]: Start difference. First operand 742 states and 866 transitions. Second operand has 14 states, 12 states have (on average 6.0) internal successors, (72), 14 states have internal predecessors, (72), 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 12:04:20,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:04:20,450 INFO L93 Difference]: Finished difference Result 754 states and 885 transitions. [2024-10-13 12:04:20,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-13 12:04:20,453 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 6.0) internal successors, (72), 14 states have internal predecessors, (72), 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 68 [2024-10-13 12:04:20,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:04:20,456 INFO L225 Difference]: With dead ends: 754 [2024-10-13 12:04:20,456 INFO L226 Difference]: Without dead ends: 752 [2024-10-13 12:04:20,457 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 122 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 12:04:20,457 INFO L432 NwaCegarLoop]: 560 mSDtfsCounter, 7 mSDsluCounter, 3352 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 3912 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-13 12:04:20,458 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 3912 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 687 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-13 12:04:20,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2024-10-13 12:04:20,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 751. [2024-10-13 12:04:20,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 751 states, 481 states have (on average 1.7650727650727651) internal successors, (849), 743 states have internal predecessors, (849), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2024-10-13 12:04:20,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 878 transitions. [2024-10-13 12:04:20,473 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 878 transitions. Word has length 68 [2024-10-13 12:04:20,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:04:20,473 INFO L471 AbstractCegarLoop]: Abstraction has 751 states and 878 transitions. [2024-10-13 12:04:20,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 6.0) internal successors, (72), 14 states have internal predecessors, (72), 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 12:04:20,473 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 878 transitions. [2024-10-13 12:04:20,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-13 12:04:20,474 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:04:20,474 INFO L215 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:04:20,487 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 (19)] Forceful destruction successful, exit code 0 [2024-10-13 12:04:20,678 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 12:04:20,679 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-10-13 12:04:20,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:04:20,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1142989321, now seen corresponding path program 3 times [2024-10-13 12:04:20,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:04:20,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [450328725] [2024-10-13 12:04:20,681 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-13 12:04:20,681 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 12:04:20,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:04:20,684 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 12:04:20,686 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 12:04:21,362 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-10-13 12:04:21,362 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 12:04:21,386 INFO L255 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-13 12:04:21,389 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:04:21,582 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 12:04:21,582 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 12:04:22,185 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 12:04:22,185 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:04:22,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [450328725] [2024-10-13 12:04:22,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [450328725] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 12:04:22,186 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 12:04:22,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-10-13 12:04:22,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813973885] [2024-10-13 12:04:22,186 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 12:04:22,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-13 12:04:22,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:04:22,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-13 12:04:22,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-10-13 12:04:22,188 INFO L87 Difference]: Start difference. First operand 751 states and 878 transitions. Second operand has 26 states, 24 states have (on average 3.5) internal successors, (84), 26 states have internal predecessors, (84), 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 12:04:26,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:04:26,860 INFO L93 Difference]: Finished difference Result 772 states and 914 transitions. [2024-10-13 12:04:26,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-10-13 12:04:26,861 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 3.5) internal successors, (84), 26 states have internal predecessors, (84), 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 74 [2024-10-13 12:04:26,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:04:26,864 INFO L225 Difference]: With dead ends: 772 [2024-10-13 12:04:26,864 INFO L226 Difference]: Without dead ends: 769 [2024-10-13 12:04:26,865 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2024-10-13 12:04:26,865 INFO L432 NwaCegarLoop]: 560 mSDtfsCounter, 14 mSDsluCounter, 6705 mSDsCounter, 0 mSdLazyCounter, 1521 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 7265 SdHoareTripleChecker+Invalid, 1534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-10-13 12:04:26,865 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 7265 Invalid, 1534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1521 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-10-13 12:04:26,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2024-10-13 12:04:26,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 769. [2024-10-13 12:04:26,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 769 states, 499 states have (on average 1.74749498997996) internal successors, (872), 761 states have internal predecessors, (872), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2024-10-13 12:04:26,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 901 transitions. [2024-10-13 12:04:26,878 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 901 transitions. Word has length 74 [2024-10-13 12:04:26,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:04:26,878 INFO L471 AbstractCegarLoop]: Abstraction has 769 states and 901 transitions. [2024-10-13 12:04:26,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 3.5) internal successors, (84), 26 states have internal predecessors, (84), 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 12:04:26,879 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 901 transitions. [2024-10-13 12:04:26,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-13 12:04:26,879 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:04:26,879 INFO L215 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:04:26,903 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 (20)] Ended with exit code 0 [2024-10-13 12:04:27,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:04:27,081 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-10-13 12:04:27,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:04:27,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1674764809, now seen corresponding path program 4 times [2024-10-13 12:04:27,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:04:27,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1643997547] [2024-10-13 12:04:27,082 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-13 12:04:27,082 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 12:04:27,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:04:27,085 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 12:04:27,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-10-13 12:04:27,780 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-13 12:04:27,780 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 12:04:27,803 INFO L255 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-10-13 12:04:27,806 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:04:28,200 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 12:04:28,201 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 12:04:29,700 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 12:04:29,700 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:04:29,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1643997547] [2024-10-13 12:04:29,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1643997547] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 12:04:29,701 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 12:04:29,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2024-10-13 12:04:29,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844073493] [2024-10-13 12:04:29,701 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 12:04:29,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-10-13 12:04:29,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:04:29,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-10-13 12:04:29,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2024-10-13 12:04:29,703 INFO L87 Difference]: Start difference. First operand 769 states and 901 transitions. Second operand has 50 states, 48 states have (on average 2.25) internal successors, (108), 50 states have internal predecessors, (108), 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 12:04:40,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:04:40,885 INFO L93 Difference]: Finished difference Result 806 states and 970 transitions. [2024-10-13 12:04:40,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-10-13 12:04:40,888 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 48 states have (on average 2.25) internal successors, (108), 50 states have internal predecessors, (108), 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 86 [2024-10-13 12:04:40,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:04:40,891 INFO L225 Difference]: With dead ends: 806 [2024-10-13 12:04:40,891 INFO L226 Difference]: Without dead ends: 804 [2024-10-13 12:04:40,893 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=2713, Invalid=5843, Unknown=0, NotChecked=0, Total=8556 [2024-10-13 12:04:40,893 INFO L432 NwaCegarLoop]: 560 mSDtfsCounter, 25 mSDsluCounter, 13415 mSDsCounter, 0 mSdLazyCounter, 3743 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 13975 SdHoareTripleChecker+Invalid, 3773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 3743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2024-10-13 12:04:40,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 13975 Invalid, 3773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 3743 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2024-10-13 12:04:40,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2024-10-13 12:04:40,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 803. [2024-10-13 12:04:40,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 803 states, 533 states have (on average 1.722326454033771) internal successors, (918), 795 states have internal predecessors, (918), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2024-10-13 12:04:40,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 947 transitions. [2024-10-13 12:04:40,905 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 947 transitions. Word has length 86 [2024-10-13 12:04:40,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:04:40,905 INFO L471 AbstractCegarLoop]: Abstraction has 803 states and 947 transitions. [2024-10-13 12:04:40,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 48 states have (on average 2.25) internal successors, (108), 50 states have internal predecessors, (108), 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 12:04:40,906 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 947 transitions. [2024-10-13 12:04:40,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-10-13 12:04:40,907 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:04:40,907 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, 1, 1, 1, 1, 1] [2024-10-13 12:04:40,927 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2024-10-13 12:04:41,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:04:41,111 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-10-13 12:04:41,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:04:41,112 INFO L85 PathProgramCache]: Analyzing trace with hash -535495177, now seen corresponding path program 5 times [2024-10-13 12:04:41,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:04:41,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1733751682] [2024-10-13 12:04:41,113 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-13 12:04:41,113 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 12:04:41,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:04:41,114 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 12:04:41,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2024-10-13 12:04:42,714 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2024-10-13 12:04:42,714 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 12:04:42,754 INFO L255 TraceCheckSpWp]: Trace formula consists of 809 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-10-13 12:04:42,761 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:04:42,768 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 12:04:42,882 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-10-13 12:04:42,882 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 12:04:42,915 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 12:04:43,018 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 12:04:43,947 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-10-13 12:04:43,947 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 12:04:43,995 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 12:04:44,028 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 12:04:44,028 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 12:04:44,472 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:04:44,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1733751682] [2024-10-13 12:04:44,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1733751682] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 12:04:44,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [853765608] [2024-10-13 12:04:44,472 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-13 12:04:44,472 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-10-13 12:04:44,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-10-13 12:04:44,475 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-10-13 12:04:44,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process