./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_nondet_test4-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test4-1.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 ee90c95792b81649f087e170ece38fbab8d5281ca8435570782565b7b775a87f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 19:19:57,582 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 19:19:57,653 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-11 19:19:57,659 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 19:19:57,660 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 19:19:57,688 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 19:19:57,689 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 19:19:57,689 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 19:19:57,690 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 19:19:57,690 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 19:19:57,691 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 19:19:57,691 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 19:19:57,692 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 19:19:57,692 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 19:19:57,693 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 19:19:57,694 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 19:19:57,694 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 19:19:57,695 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 19:19:57,695 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 19:19:57,695 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 19:19:57,696 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 19:19:57,696 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 19:19:57,696 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 19:19:57,701 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 19:19:57,702 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 19:19:57,702 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 19:19:57,702 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 19:19:57,702 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 19:19:57,702 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 19:19:57,703 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 19:19:57,703 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 19:19:57,703 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 19:19:57,703 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 19:19:57,704 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:19:57,704 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 19:19:57,705 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 19:19:57,706 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 19:19:57,706 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 19:19:57,707 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 19:19:57,707 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 19:19:57,708 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 19:19:57,708 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 19:19:57,708 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee90c95792b81649f087e170ece38fbab8d5281ca8435570782565b7b775a87f [2024-10-11 19:19:57,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 19:19:58,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 19:19:58,013 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 19:19:58,014 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 19:19:58,015 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 19:19:58,017 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test4-1.i [2024-10-11 19:19:59,453 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 19:19:59,785 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 19:19:59,787 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test4-1.i [2024-10-11 19:19:59,812 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/d862770a7/6dfbd8bb68cd4510868a0d25f40657c2/FLAG5d59f41ab [2024-10-11 19:19:59,830 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/d862770a7/6dfbd8bb68cd4510868a0d25f40657c2 [2024-10-11 19:19:59,833 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 19:19:59,834 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 19:19:59,836 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 19:19:59,836 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 19:19:59,841 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 19:19:59,841 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:19:59" (1/1) ... [2024-10-11 19:19:59,842 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ec74a43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:19:59, skipping insertion in model container [2024-10-11 19:19:59,842 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:19:59" (1/1) ... [2024-10-11 19:19:59,899 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:20:00,515 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:20:00,536 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) [2024-10-11 19:20:00,537 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@a1ad659 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:20:00, skipping insertion in model container [2024-10-11 19:20:00,537 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 19:20:00,537 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-10-11 19:20:00,540 INFO L158 Benchmark]: Toolchain (without parser) took 704.44ms. Allocated memory was 136.3MB in the beginning and 176.2MB in the end (delta: 39.8MB). Free memory was 66.5MB in the beginning and 131.6MB in the end (delta: -65.1MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2024-10-11 19:20:00,541 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 136.3MB. Free memory is still 87.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 19:20:00,542 INFO L158 Benchmark]: CACSL2BoogieTranslator took 701.75ms. Allocated memory was 136.3MB in the beginning and 176.2MB in the end (delta: 39.8MB). Free memory was 66.4MB in the beginning and 131.6MB in the end (delta: -65.3MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2024-10-11 19:20:00,543 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 136.3MB. Free memory is still 87.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 701.75ms. Allocated memory was 136.3MB in the beginning and 176.2MB in the end (delta: 39.8MB). Free memory was 66.4MB in the beginning and 131.6MB in the end (delta: -65.3MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 740]: 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-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test4-1.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 ee90c95792b81649f087e170ece38fbab8d5281ca8435570782565b7b775a87f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 19:20:02,720 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 19:20:02,809 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-10-11 19:20:02,815 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 19:20:02,817 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 19:20:02,844 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 19:20:02,845 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 19:20:02,845 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 19:20:02,846 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 19:20:02,850 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 19:20:02,850 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 19:20:02,851 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 19:20:02,851 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 19:20:02,852 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 19:20:02,852 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 19:20:02,852 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 19:20:02,852 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 19:20:02,852 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 19:20:02,853 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 19:20:02,853 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 19:20:02,853 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 19:20:02,854 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 19:20:02,854 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 19:20:02,854 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 19:20:02,855 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 19:20:02,855 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-11 19:20:02,855 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 19:20:02,855 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-11 19:20:02,856 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 19:20:02,856 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 19:20:02,856 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 19:20:02,856 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 19:20:02,856 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 19:20:02,857 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 19:20:02,857 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 19:20:02,857 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:20:02,857 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 19:20:02,858 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 19:20:02,859 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-11 19:20:02,859 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-11 19:20:02,859 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 19:20:02,860 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 19:20:02,860 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 19:20:02,860 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 19:20:02,861 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-11 19:20:02,861 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee90c95792b81649f087e170ece38fbab8d5281ca8435570782565b7b775a87f [2024-10-11 19:20:03,223 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 19:20:03,245 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 19:20:03,247 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 19:20:03,249 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 19:20:03,250 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 19:20:03,253 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test4-1.i [2024-10-11 19:20:04,827 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 19:20:05,123 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 19:20:05,127 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test4-1.i [2024-10-11 19:20:05,157 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/6cb4c98c7/7e29406fba0146eeabdb3c5e08e516f5/FLAGb13f4f60f [2024-10-11 19:20:05,405 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/6cb4c98c7/7e29406fba0146eeabdb3c5e08e516f5 [2024-10-11 19:20:05,408 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 19:20:05,410 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 19:20:05,414 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 19:20:05,414 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 19:20:05,420 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 19:20:05,421 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:20:05" (1/1) ... [2024-10-11 19:20:05,423 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32c7193 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:20:05, skipping insertion in model container [2024-10-11 19:20:05,424 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:20:05" (1/1) ... [2024-10-11 19:20:05,490 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:20:06,078 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:20:06,099 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-10-11 19:20:06,126 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:20:06,223 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:20:06,232 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 19:20:06,373 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:20:06,423 INFO L204 MainTranslator]: Completed translation [2024-10-11 19:20:06,424 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:20:06 WrapperNode [2024-10-11 19:20:06,424 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 19:20:06,425 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 19:20:06,425 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 19:20:06,426 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 19:20:06,432 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:20:06" (1/1) ... [2024-10-11 19:20:06,476 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:20:06" (1/1) ... [2024-10-11 19:20:06,567 INFO L138 Inliner]: procedures = 179, calls = 326, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1144 [2024-10-11 19:20:06,567 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 19:20:06,568 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 19:20:06,568 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 19:20:06,568 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 19:20:06,589 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:20:06" (1/1) ... [2024-10-11 19:20:06,589 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:20:06" (1/1) ... [2024-10-11 19:20:06,608 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:20:06" (1/1) ... [2024-10-11 19:20:06,722 INFO L175 MemorySlicer]: Split 309 memory accesses to 2 slices as follows [2, 307]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 82 writes are split as follows [0, 82]. [2024-10-11 19:20:06,722 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:20:06" (1/1) ... [2024-10-11 19:20:06,723 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:20:06" (1/1) ... [2024-10-11 19:20:06,781 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:20:06" (1/1) ... [2024-10-11 19:20:06,795 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:20:06" (1/1) ... [2024-10-11 19:20:06,807 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:20:06" (1/1) ... [2024-10-11 19:20:06,817 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:20:06" (1/1) ... [2024-10-11 19:20:06,845 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 19:20:06,846 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 19:20:06,846 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 19:20:06,846 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 19:20:06,847 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:20:06" (1/1) ... [2024-10-11 19:20:06,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:20:06,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:20:06,892 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 19:20:06,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 19:20:06,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-10-11 19:20:06,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-10-11 19:20:06,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-11 19:20:06,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-11 19:20:06,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-10-11 19:20:06,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-10-11 19:20:06,948 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-10-11 19:20:06,948 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-10-11 19:20:06,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-11 19:20:06,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 19:20:06,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-11 19:20:06,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-11 19:20:06,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-11 19:20:06,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-11 19:20:06,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 19:20:06,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-11 19:20:06,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-11 19:20:06,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-11 19:20:06,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-11 19:20:06,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 19:20:06,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 19:20:07,232 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 19:20:07,234 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 19:20:07,238 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-11 19:20:07,297 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-11 19:20:11,975 INFO L? ?]: Removed 1315 outVars from TransFormulas that were not future-live. [2024-10-11 19:20:11,975 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 19:20:12,150 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 19:20:12,150 INFO L314 CfgBuilder]: Removed 60 assume(true) statements. [2024-10-11 19:20:12,151 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:20:12 BoogieIcfgContainer [2024-10-11 19:20:12,151 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 19:20:12,154 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 19:20:12,154 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 19:20:12,157 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 19:20:12,157 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 07:20:05" (1/3) ... [2024-10-11 19:20:12,158 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44708f81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:20:12, skipping insertion in model container [2024-10-11 19:20:12,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:20:06" (2/3) ... [2024-10-11 19:20:12,160 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44708f81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:20:12, skipping insertion in model container [2024-10-11 19:20:12,160 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:20:12" (3/3) ... [2024-10-11 19:20:12,161 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_nondet_test4-1.i [2024-10-11 19:20:12,178 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 19:20:12,179 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 628 error locations. [2024-10-11 19:20:12,268 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 19:20:12,276 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;@2dee832, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 19:20:12,276 INFO L334 AbstractCegarLoop]: Starting to check reachability of 628 error locations. [2024-10-11 19:20:12,285 INFO L276 IsEmpty]: Start isEmpty. Operand has 1109 states, 479 states have (on average 2.549060542797495) internal successors, (1221), 1101 states have internal predecessors, (1221), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-11 19:20:12,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-10-11 19:20:12,291 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:20:12,291 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-10-11 19:20:12,292 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr627ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-10-11 19:20:12,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:20:12,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1798641, now seen corresponding path program 1 times [2024-10-11 19:20:12,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:20:12,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [100862644] [2024-10-11 19:20:12,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:20:12,308 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 [2024-10-11 19:20:12,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:20:12,309 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:20:12,310 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:20:12,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:20:12,464 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-11 19:20:12,470 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:20:12,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:20:12,492 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:20:12,493 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:20:12,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [100862644] [2024-10-11 19:20:12,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [100862644] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:20:12,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:20:12,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 19:20:12,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936246231] [2024-10-11 19:20:12,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:20:12,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:20:12,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:20:12,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:20:12,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:20:12,536 INFO L87 Difference]: Start difference. First operand has 1109 states, 479 states have (on average 2.549060542797495) internal successors, (1221), 1101 states have internal predecessors, (1221), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2024-10-11 19:20:14,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:20:14,408 INFO L93 Difference]: Finished difference Result 1111 states and 1169 transitions. [2024-10-11 19:20:14,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:20:14,412 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2024-10-11 19:20:14,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:20:14,438 INFO L225 Difference]: With dead ends: 1111 [2024-10-11 19:20:14,438 INFO L226 Difference]: Without dead ends: 1108 [2024-10-11 19:20:14,440 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:20:14,445 INFO L432 NwaCegarLoop]: 1020 mSDtfsCounter, 23 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 740 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 1547 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-11 19:20:14,449 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 1547 Invalid, 740 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 740 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-11 19:20:14,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2024-10-11 19:20:14,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 1099. [2024-10-11 19:20:14,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1099 states, 480 states have (on average 2.3958333333333335) internal successors, (1150), 1091 states have internal predecessors, (1150), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-11 19:20:14,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1099 states to 1099 states and 1162 transitions. [2024-10-11 19:20:14,543 INFO L78 Accepts]: Start accepts. Automaton has 1099 states and 1162 transitions. Word has length 3 [2024-10-11 19:20:14,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:20:14,544 INFO L471 AbstractCegarLoop]: Abstraction has 1099 states and 1162 transitions. [2024-10-11 19:20:14,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2024-10-11 19:20:14,544 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states and 1162 transitions. [2024-10-11 19:20:14,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-11 19:20:14,545 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:20:14,545 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-11 19:20:14,549 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:20:14,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:20:14,746 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-10-11 19:20:14,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:20:14,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1726838456, now seen corresponding path program 1 times [2024-10-11 19:20:14,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:20:14,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1333492119] [2024-10-11 19:20:14,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:20:14,748 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 [2024-10-11 19:20:14,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:20:14,749 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:20:14,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:20:14,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:20:14,898 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 19:20:14,899 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:20:14,929 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 [2024-10-11 19:20:14,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:20:14,940 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:20:14,940 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:20:14,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1333492119] [2024-10-11 19:20:14,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1333492119] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:20:14,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:20:14,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:20:14,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805878190] [2024-10-11 19:20:14,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:20:14,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:20:14,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:20:14,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:20:14,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:20:14,946 INFO L87 Difference]: Start difference. First operand 1099 states and 1162 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:20:16,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:20:16,724 INFO L93 Difference]: Finished difference Result 1005 states and 1066 transitions. [2024-10-11 19:20:16,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:20:16,724 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-10-11 19:20:16,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:20:16,728 INFO L225 Difference]: With dead ends: 1005 [2024-10-11 19:20:16,729 INFO L226 Difference]: Without dead ends: 1005 [2024-10-11 19:20:16,730 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:20:16,731 INFO L432 NwaCegarLoop]: 438 mSDtfsCounter, 913 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 731 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 919 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-11 19:20:16,732 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [919 Valid, 442 Invalid, 833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 731 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-11 19:20:16,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2024-10-11 19:20:16,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 1005. [2024-10-11 19:20:16,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 480 states have (on average 2.1958333333333333) internal successors, (1054), 997 states have internal predecessors, (1054), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-11 19:20:16,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1066 transitions. [2024-10-11 19:20:16,763 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1066 transitions. Word has length 5 [2024-10-11 19:20:16,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:20:16,765 INFO L471 AbstractCegarLoop]: Abstraction has 1005 states and 1066 transitions. [2024-10-11 19:20:16,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:20:16,765 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1066 transitions. [2024-10-11 19:20:16,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-11 19:20:16,767 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:20:16,767 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-11 19:20:16,771 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:20:16,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:20:16,970 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-10-11 19:20:16,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:20:16,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1726838457, now seen corresponding path program 1 times [2024-10-11 19:20:16,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:20:16,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1470519719] [2024-10-11 19:20:16,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:20:16,972 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 [2024-10-11 19:20:16,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:20:16,975 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:20:16,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:20:17,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:20:17,085 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 19:20:17,087 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:20:17,096 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 [2024-10-11 19:20:17,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:20:17,126 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:20:17,126 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:20:17,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1470519719] [2024-10-11 19:20:17,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1470519719] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:20:17,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:20:17,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:20:17,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280101195] [2024-10-11 19:20:17,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:20:17,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:20:17,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:20:17,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:20:17,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:20:17,129 INFO L87 Difference]: Start difference. First operand 1005 states and 1066 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:20:19,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:20:19,921 INFO L93 Difference]: Finished difference Result 1285 states and 1366 transitions. [2024-10-11 19:20:19,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:20:19,922 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-10-11 19:20:19,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:20:19,926 INFO L225 Difference]: With dead ends: 1285 [2024-10-11 19:20:19,927 INFO L226 Difference]: Without dead ends: 1285 [2024-10-11 19:20:19,927 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:20:19,928 INFO L432 NwaCegarLoop]: 744 mSDtfsCounter, 464 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 831 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 1090 SdHoareTripleChecker+Invalid, 856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-10-11 19:20:19,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [464 Valid, 1090 Invalid, 856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 831 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-10-11 19:20:19,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1285 states. [2024-10-11 19:20:19,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1285 to 1134. [2024-10-11 19:20:19,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1134 states, 619 states have (on average 2.158319870759289) internal successors, (1336), 1126 states have internal predecessors, (1336), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-11 19:20:19,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1134 states to 1134 states and 1348 transitions. [2024-10-11 19:20:19,954 INFO L78 Accepts]: Start accepts. Automaton has 1134 states and 1348 transitions. Word has length 5 [2024-10-11 19:20:19,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:20:19,954 INFO L471 AbstractCegarLoop]: Abstraction has 1134 states and 1348 transitions. [2024-10-11 19:20:19,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:20:19,955 INFO L276 IsEmpty]: Start isEmpty. Operand 1134 states and 1348 transitions. [2024-10-11 19:20:19,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-11 19:20:19,955 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:20:19,955 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-11 19:20:19,960 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:20:20,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:20:20,156 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr620REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-10-11 19:20:20,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:20:20,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1994044088, now seen corresponding path program 1 times [2024-10-11 19:20:20,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:20:20,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [713414794] [2024-10-11 19:20:20,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:20:20,157 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 [2024-10-11 19:20:20,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:20:20,166 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:20:20,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:20:20,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:20:20,277 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 19:20:20,278 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:20:20,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:20:20,330 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:20:20,330 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:20:20,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [713414794] [2024-10-11 19:20:20,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [713414794] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:20:20,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:20:20,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:20:20,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938139146] [2024-10-11 19:20:20,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:20:20,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:20:20,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:20:20,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:20:20,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:20:20,334 INFO L87 Difference]: Start difference. First operand 1134 states and 1348 transitions. Second operand has 4 states, 4 states have (on average 1.5) 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) [2024-10-11 19:20:22,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:20:22,135 INFO L93 Difference]: Finished difference Result 1811 states and 2151 transitions. [2024-10-11 19:20:22,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:20:22,136 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) 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 [2024-10-11 19:20:22,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:20:22,142 INFO L225 Difference]: With dead ends: 1811 [2024-10-11 19:20:22,143 INFO L226 Difference]: Without dead ends: 1809 [2024-10-11 19:20:22,143 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:20:22,145 INFO L432 NwaCegarLoop]: 917 mSDtfsCounter, 620 mSDsluCounter, 1623 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 2540 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-11 19:20:22,146 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 2540 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-11 19:20:22,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1809 states. [2024-10-11 19:20:22,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1809 to 1510. [2024-10-11 19:20:22,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1510 states, 995 states have (on average 2.141708542713568) internal successors, (2131), 1499 states have internal predecessors, (2131), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 19:20:22,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1510 states to 1510 states and 2149 transitions. [2024-10-11 19:20:22,182 INFO L78 Accepts]: Start accepts. Automaton has 1510 states and 2149 transitions. Word has length 6 [2024-10-11 19:20:22,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:20:22,183 INFO L471 AbstractCegarLoop]: Abstraction has 1510 states and 2149 transitions. [2024-10-11 19:20:22,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) 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) [2024-10-11 19:20:22,183 INFO L276 IsEmpty]: Start isEmpty. Operand 1510 states and 2149 transitions. [2024-10-11 19:20:22,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-11 19:20:22,184 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:20:22,184 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:20:22,187 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:20:22,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:20:22,386 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-10-11 19:20:22,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:20:22,387 INFO L85 PathProgramCache]: Analyzing trace with hash -46324254, now seen corresponding path program 1 times [2024-10-11 19:20:22,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:20:22,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1812976990] [2024-10-11 19:20:22,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:20:22,388 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 [2024-10-11 19:20:22,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:20:22,393 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:20:22,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:20:22,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:20:22,525 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-11 19:20:22,527 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:20:22,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:20:22,537 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:20:22,537 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:20:22,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1812976990] [2024-10-11 19:20:22,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1812976990] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:20:22,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:20:22,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:20:22,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216506200] [2024-10-11 19:20:22,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:20:22,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:20:22,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:20:22,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:20:22,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:20:22,543 INFO L87 Difference]: Start difference. First operand 1510 states and 2149 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-10-11 19:20:23,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:20:23,224 INFO L93 Difference]: Finished difference Result 1456 states and 2069 transitions. [2024-10-11 19:20:23,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:20:23,225 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2024-10-11 19:20:23,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:20:23,231 INFO L225 Difference]: With dead ends: 1456 [2024-10-11 19:20:23,232 INFO L226 Difference]: Without dead ends: 1456 [2024-10-11 19:20:23,232 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:20:23,233 INFO L432 NwaCegarLoop]: 870 mSDtfsCounter, 61 mSDsluCounter, 828 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 1698 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-11 19:20:23,233 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 1698 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-11 19:20:23,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states. [2024-10-11 19:20:23,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 1456. [2024-10-11 19:20:23,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1456 states, 965 states have (on average 2.1253886010362693) internal successors, (2051), 1445 states have internal predecessors, (2051), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 19:20:23,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 2069 transitions. [2024-10-11 19:20:23,265 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 2069 transitions. Word has length 11 [2024-10-11 19:20:23,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:20:23,266 INFO L471 AbstractCegarLoop]: Abstraction has 1456 states and 2069 transitions. [2024-10-11 19:20:23,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-10-11 19:20:23,266 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 2069 transitions. [2024-10-11 19:20:23,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-11 19:20:23,267 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:20:23,267 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:20:23,272 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:20:23,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:20:23,468 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-10-11 19:20:23,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:20:23,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1567938852, now seen corresponding path program 1 times [2024-10-11 19:20:23,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:20:23,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [212584651] [2024-10-11 19:20:23,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:20:23,469 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 [2024-10-11 19:20:23,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:20:23,470 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:20:23,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:20:23,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:20:23,611 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 19:20:23,613 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:20:23,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:20:23,628 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:20:23,629 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:20:23,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [212584651] [2024-10-11 19:20:23,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [212584651] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:20:23,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:20:23,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:20:23,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421531546] [2024-10-11 19:20:23,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:20:23,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:20:23,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:20:23,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:20:23,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:20:23,631 INFO L87 Difference]: Start difference. First operand 1456 states and 2069 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2024-10-11 19:20:24,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:20:24,665 INFO L93 Difference]: Finished difference Result 1440 states and 2025 transitions. [2024-10-11 19:20:24,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:20:24,667 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2024-10-11 19:20:24,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:20:24,672 INFO L225 Difference]: With dead ends: 1440 [2024-10-11 19:20:24,672 INFO L226 Difference]: Without dead ends: 1440 [2024-10-11 19:20:24,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:20:24,674 INFO L432 NwaCegarLoop]: 839 mSDtfsCounter, 45 mSDsluCounter, 1660 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 2499 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-11 19:20:24,674 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 2499 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-11 19:20:24,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1440 states. [2024-10-11 19:20:24,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1440 to 1440. [2024-10-11 19:20:24,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1440 states, 963 states have (on average 2.0841121495327104) internal successors, (2007), 1429 states have internal predecessors, (2007), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 19:20:24,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 2025 transitions. [2024-10-11 19:20:24,706 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 2025 transitions. Word has length 13 [2024-10-11 19:20:24,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:20:24,706 INFO L471 AbstractCegarLoop]: Abstraction has 1440 states and 2025 transitions. [2024-10-11 19:20:24,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2024-10-11 19:20:24,707 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 2025 transitions. [2024-10-11 19:20:24,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-10-11 19:20:24,707 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:20:24,708 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] [2024-10-11 19:20:24,712 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:20:24,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:20:24,909 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-10-11 19:20:24,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:20:24,910 INFO L85 PathProgramCache]: Analyzing trace with hash 572631978, now seen corresponding path program 1 times [2024-10-11 19:20:24,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:20:24,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [276517399] [2024-10-11 19:20:24,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:20:24,910 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 [2024-10-11 19:20:24,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:20:24,916 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:20:24,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:20:25,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:20:25,059 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 19:20:25,063 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:20:25,069 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 [2024-10-11 19:20:25,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:20:25,152 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:20:25,152 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:20:25,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [276517399] [2024-10-11 19:20:25,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [276517399] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:20:25,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:20:25,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:20:25,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050556835] [2024-10-11 19:20:25,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:20:25,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:20:25,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:20:25,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:20:25,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:20:25,154 INFO L87 Difference]: Start difference. First operand 1440 states and 2025 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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) [2024-10-11 19:20:27,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:20:27,274 INFO L93 Difference]: Finished difference Result 1444 states and 2025 transitions. [2024-10-11 19:20:27,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:20:27,275 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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 27 [2024-10-11 19:20:27,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:20:27,280 INFO L225 Difference]: With dead ends: 1444 [2024-10-11 19:20:27,281 INFO L226 Difference]: Without dead ends: 1444 [2024-10-11 19:20:27,281 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:20:27,282 INFO L432 NwaCegarLoop]: 402 mSDtfsCounter, 857 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 1254 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 863 SdHoareTripleChecker+Valid, 760 SdHoareTripleChecker+Invalid, 1266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-11 19:20:27,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [863 Valid, 760 Invalid, 1266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1254 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-11 19:20:27,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1444 states. [2024-10-11 19:20:27,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1444 to 1436. [2024-10-11 19:20:27,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 963 states have (on average 2.075804776739356) internal successors, (1999), 1425 states have internal predecessors, (1999), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 19:20:27,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 2017 transitions. [2024-10-11 19:20:27,311 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 2017 transitions. Word has length 27 [2024-10-11 19:20:27,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:20:27,313 INFO L471 AbstractCegarLoop]: Abstraction has 1436 states and 2017 transitions. [2024-10-11 19:20:27,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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) [2024-10-11 19:20:27,314 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 2017 transitions. [2024-10-11 19:20:27,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-10-11 19:20:27,315 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:20:27,315 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] [2024-10-11 19:20:27,320 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:20:27,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:20:27,519 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-10-11 19:20:27,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:20:27,520 INFO L85 PathProgramCache]: Analyzing trace with hash 572631979, now seen corresponding path program 1 times [2024-10-11 19:20:27,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:20:27,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1405329296] [2024-10-11 19:20:27,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:20:27,520 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 [2024-10-11 19:20:27,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:20:27,522 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:20:27,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:20:27,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:20:27,674 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 19:20:27,677 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:20:27,688 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 [2024-10-11 19:20:27,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:20:27,902 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:20:27,902 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:20:27,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1405329296] [2024-10-11 19:20:27,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1405329296] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:20:27,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:20:27,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:20:27,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125295830] [2024-10-11 19:20:27,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:20:27,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:20:27,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:20:27,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:20:27,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:20:27,904 INFO L87 Difference]: Start difference. First operand 1436 states and 2017 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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) [2024-10-11 19:20:31,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:20:31,294 INFO L93 Difference]: Finished difference Result 1592 states and 2038 transitions. [2024-10-11 19:20:31,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:20:31,295 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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 27 [2024-10-11 19:20:31,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:20:31,301 INFO L225 Difference]: With dead ends: 1592 [2024-10-11 19:20:31,301 INFO L226 Difference]: Without dead ends: 1592 [2024-10-11 19:20:31,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:20:31,302 INFO L432 NwaCegarLoop]: 774 mSDtfsCounter, 404 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 1400 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 1531 SdHoareTripleChecker+Invalid, 1403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-10-11 19:20:31,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 1531 Invalid, 1403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1400 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-10-11 19:20:31,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1592 states. [2024-10-11 19:20:31,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1592 to 1432. [2024-10-11 19:20:31,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 963 states have (on average 2.067497403946002) internal successors, (1991), 1421 states have internal predecessors, (1991), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 19:20:31,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 2009 transitions. [2024-10-11 19:20:31,330 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 2009 transitions. Word has length 27 [2024-10-11 19:20:31,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:20:31,330 INFO L471 AbstractCegarLoop]: Abstraction has 1432 states and 2009 transitions. [2024-10-11 19:20:31,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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) [2024-10-11 19:20:31,331 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 2009 transitions. [2024-10-11 19:20:31,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-11 19:20:31,332 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:20:31,332 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] [2024-10-11 19:20:31,337 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-10-11 19:20:31,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:20:31,534 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr108REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-10-11 19:20:31,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:20:31,534 INFO L85 PathProgramCache]: Analyzing trace with hash 768916005, now seen corresponding path program 1 times [2024-10-11 19:20:31,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:20:31,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [903927427] [2024-10-11 19:20:31,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:20:31,536 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 [2024-10-11 19:20:31,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:20:31,539 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:20:31,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:20:31,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:20:31,743 INFO L255 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 19:20:31,746 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:20:31,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:20:31,796 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:20:31,796 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:20:31,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [903927427] [2024-10-11 19:20:31,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [903927427] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:20:31,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:20:31,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:20:31,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068553353] [2024-10-11 19:20:31,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:20:31,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:20:31,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:20:31,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:20:31,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:20:31,798 INFO L87 Difference]: Start difference. First operand 1432 states and 2009 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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) [2024-10-11 19:20:32,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:20:32,798 INFO L93 Difference]: Finished difference Result 1420 states and 1989 transitions. [2024-10-11 19:20:32,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:20:32,799 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 43 [2024-10-11 19:20:32,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:20:32,803 INFO L225 Difference]: With dead ends: 1420 [2024-10-11 19:20:32,803 INFO L226 Difference]: Without dead ends: 1420 [2024-10-11 19:20:32,803 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:20:32,804 INFO L432 NwaCegarLoop]: 833 mSDtfsCounter, 15 mSDsluCounter, 1649 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2482 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-11 19:20:32,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2482 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-11 19:20:32,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1420 states. [2024-10-11 19:20:32,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1420 to 1420. [2024-10-11 19:20:32,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1420 states, 951 states have (on average 2.0725552050473186) internal successors, (1971), 1409 states have internal predecessors, (1971), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 19:20:32,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1420 states to 1420 states and 1989 transitions. [2024-10-11 19:20:32,833 INFO L78 Accepts]: Start accepts. Automaton has 1420 states and 1989 transitions. Word has length 43 [2024-10-11 19:20:32,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:20:32,834 INFO L471 AbstractCegarLoop]: Abstraction has 1420 states and 1989 transitions. [2024-10-11 19:20:32,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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) [2024-10-11 19:20:32,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1420 states and 1989 transitions. [2024-10-11 19:20:32,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-11 19:20:32,835 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:20:32,835 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] [2024-10-11 19:20:32,843 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:20:33,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:20:33,036 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr108REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-10-11 19:20:33,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:20:33,037 INFO L85 PathProgramCache]: Analyzing trace with hash -286582395, now seen corresponding path program 1 times [2024-10-11 19:20:33,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:20:33,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2090830172] [2024-10-11 19:20:33,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:20:33,037 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 [2024-10-11 19:20:33,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:20:33,040 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:20:33,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:20:33,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:20:33,238 INFO L255 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 19:20:33,240 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:20:33,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:20:33,461 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:20:33,461 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:20:33,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2090830172] [2024-10-11 19:20:33,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2090830172] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:20:33,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:20:33,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:20:33,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593026692] [2024-10-11 19:20:33,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:20:33,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:20:33,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:20:33,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:20:33,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:20:33,463 INFO L87 Difference]: Start difference. First operand 1420 states and 1989 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 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) [2024-10-11 19:20:34,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:20:34,177 INFO L93 Difference]: Finished difference Result 1310 states and 1763 transitions. [2024-10-11 19:20:34,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:20:34,179 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 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 [2024-10-11 19:20:34,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:20:34,184 INFO L225 Difference]: With dead ends: 1310 [2024-10-11 19:20:34,184 INFO L226 Difference]: Without dead ends: 1310 [2024-10-11 19:20:34,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:20:34,185 INFO L432 NwaCegarLoop]: 848 mSDtfsCounter, 0 mSDsluCounter, 821 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1669 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-11 19:20:34,186 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1669 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-11 19:20:34,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1310 states. [2024-10-11 19:20:34,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1310 to 1310. [2024-10-11 19:20:34,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1310 states, 841 states have (on average 2.074910820451843) internal successors, (1745), 1299 states have internal predecessors, (1745), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 19:20:34,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1310 states to 1310 states and 1763 transitions. [2024-10-11 19:20:34,211 INFO L78 Accepts]: Start accepts. Automaton has 1310 states and 1763 transitions. Word has length 47 [2024-10-11 19:20:34,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:20:34,211 INFO L471 AbstractCegarLoop]: Abstraction has 1310 states and 1763 transitions. [2024-10-11 19:20:34,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 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) [2024-10-11 19:20:34,212 INFO L276 IsEmpty]: Start isEmpty. Operand 1310 states and 1763 transitions. [2024-10-11 19:20:34,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-10-11 19:20:34,215 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:20:34,216 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] [2024-10-11 19:20:34,223 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-10-11 19:20:34,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:20:34,416 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-10-11 19:20:34,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:20:34,417 INFO L85 PathProgramCache]: Analyzing trace with hash 711357344, now seen corresponding path program 1 times [2024-10-11 19:20:34,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:20:34,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1365314777] [2024-10-11 19:20:34,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:20:34,418 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 [2024-10-11 19:20:34,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:20:34,419 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:20:34,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:20:34,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:20:34,770 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 19:20:34,773 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:20:34,790 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 [2024-10-11 19:20:34,801 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 [2024-10-11 19:20:35,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 19:20:35,272 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 [2024-10-11 19:20:35,286 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-11 19:20:35,286 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 [2024-10-11 19:20:35,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:20:35,303 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:20:35,303 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:20:35,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1365314777] [2024-10-11 19:20:35,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1365314777] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:20:35,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:20:35,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:20:35,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575192737] [2024-10-11 19:20:35,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:20:35,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:20:35,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:20:35,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:20:35,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:20:35,305 INFO L87 Difference]: Start difference. First operand 1310 states and 1763 transitions. Second operand has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 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) [2024-10-11 19:20:36,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:20:36,945 INFO L93 Difference]: Finished difference Result 1226 states and 1638 transitions. [2024-10-11 19:20:36,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:20:36,946 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 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 50 [2024-10-11 19:20:36,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:20:36,949 INFO L225 Difference]: With dead ends: 1226 [2024-10-11 19:20:36,949 INFO L226 Difference]: Without dead ends: 1226 [2024-10-11 19:20:36,949 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:20:36,950 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 1564 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1570 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-11 19:20:36,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1570 Valid, 221 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-11 19:20:36,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1226 states. [2024-10-11 19:20:36,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1226 to 1087. [2024-10-11 19:20:36,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1087 states, 702 states have (on average 1.8917378917378918) internal successors, (1328), 1076 states have internal predecessors, (1328), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 19:20:36,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1087 states to 1087 states and 1346 transitions. [2024-10-11 19:20:36,974 INFO L78 Accepts]: Start accepts. Automaton has 1087 states and 1346 transitions. Word has length 50 [2024-10-11 19:20:36,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:20:36,975 INFO L471 AbstractCegarLoop]: Abstraction has 1087 states and 1346 transitions. [2024-10-11 19:20:36,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 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) [2024-10-11 19:20:36,975 INFO L276 IsEmpty]: Start isEmpty. Operand 1087 states and 1346 transitions. [2024-10-11 19:20:36,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-11 19:20:36,977 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:20:36,977 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] [2024-10-11 19:20:36,988 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:20:37,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:20:37,182 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-10-11 19:20:37,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:20:37,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1000351691, now seen corresponding path program 1 times [2024-10-11 19:20:37,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:20:37,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [133790426] [2024-10-11 19:20:37,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:20:37,183 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 [2024-10-11 19:20:37,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:20:37,187 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:20:37,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:20:37,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:20:37,462 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 19:20:37,465 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:20:37,472 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 [2024-10-11 19:20:37,487 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 [2024-10-11 19:20:37,508 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 [2024-10-11 19:20:37,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:20:37,518 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:20:37,518 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:20:37,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [133790426] [2024-10-11 19:20:37,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [133790426] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:20:37,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:20:37,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:20:37,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488361453] [2024-10-11 19:20:37,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:20:37,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:20:37,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:20:37,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:20:37,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:20:37,520 INFO L87 Difference]: Start difference. First operand 1087 states and 1346 transitions. Second operand has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 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) [2024-10-11 19:20:39,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:20:39,769 INFO L93 Difference]: Finished difference Result 1086 states and 1344 transitions. [2024-10-11 19:20:39,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 19:20:39,771 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 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 [2024-10-11 19:20:39,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:20:39,775 INFO L225 Difference]: With dead ends: 1086 [2024-10-11 19:20:39,775 INFO L226 Difference]: Without dead ends: 1086 [2024-10-11 19:20:39,775 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:20:39,776 INFO L432 NwaCegarLoop]: 761 mSDtfsCounter, 2 mSDsluCounter, 1165 mSDsCounter, 0 mSdLazyCounter, 1562 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1926 SdHoareTripleChecker+Invalid, 1563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-11 19:20:39,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1926 Invalid, 1563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1562 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-11 19:20:39,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1086 states. [2024-10-11 19:20:39,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1086 to 1086. [2024-10-11 19:20:39,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1086 states, 702 states have (on average 1.8888888888888888) internal successors, (1326), 1075 states have internal predecessors, (1326), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 19:20:39,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 1344 transitions. [2024-10-11 19:20:39,793 INFO L78 Accepts]: Start accepts. Automaton has 1086 states and 1344 transitions. Word has length 54 [2024-10-11 19:20:39,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:20:39,793 INFO L471 AbstractCegarLoop]: Abstraction has 1086 states and 1344 transitions. [2024-10-11 19:20:39,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 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) [2024-10-11 19:20:39,794 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states and 1344 transitions. [2024-10-11 19:20:39,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-11 19:20:39,794 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:20:39,795 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] [2024-10-11 19:20:39,802 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:20:39,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:20:39,996 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr67REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-10-11 19:20:39,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:20:39,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1000351692, now seen corresponding path program 1 times [2024-10-11 19:20:39,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:20:39,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1030770604] [2024-10-11 19:20:39,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:20:39,997 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 [2024-10-11 19:20:39,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:20:40,000 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:20:40,002 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:20:40,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:20:40,257 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-11 19:20:40,260 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:20:40,272 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 [2024-10-11 19:20:40,292 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 [2024-10-11 19:20:40,299 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 [2024-10-11 19:20:40,338 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 [2024-10-11 19:20:40,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:20:40,357 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:20:40,357 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:20:40,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1030770604] [2024-10-11 19:20:40,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1030770604] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:20:40,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:20:40,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:20:40,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348625346] [2024-10-11 19:20:40,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:20:40,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:20:40,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:20:40,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:20:40,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:20:40,359 INFO L87 Difference]: Start difference. First operand 1086 states and 1344 transitions. Second operand has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 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) [2024-10-11 19:20:42,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:20:42,954 INFO L93 Difference]: Finished difference Result 1085 states and 1342 transitions. [2024-10-11 19:20:42,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 19:20:42,956 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 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 [2024-10-11 19:20:42,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:20:42,959 INFO L225 Difference]: With dead ends: 1085 [2024-10-11 19:20:42,959 INFO L226 Difference]: Without dead ends: 1085 [2024-10-11 19:20:42,959 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:20:42,960 INFO L432 NwaCegarLoop]: 761 mSDtfsCounter, 1 mSDsluCounter, 1180 mSDsCounter, 0 mSdLazyCounter, 1544 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1941 SdHoareTripleChecker+Invalid, 1545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-11 19:20:42,960 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1941 Invalid, 1545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1544 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-11 19:20:42,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2024-10-11 19:20:42,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 1085. [2024-10-11 19:20:42,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1085 states, 700 states have (on average 1.8914285714285715) internal successors, (1324), 1074 states have internal predecessors, (1324), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 19:20:42,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1085 states to 1085 states and 1342 transitions. [2024-10-11 19:20:42,974 INFO L78 Accepts]: Start accepts. Automaton has 1085 states and 1342 transitions. Word has length 54 [2024-10-11 19:20:42,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:20:42,975 INFO L471 AbstractCegarLoop]: Abstraction has 1085 states and 1342 transitions. [2024-10-11 19:20:42,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 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) [2024-10-11 19:20:42,975 INFO L276 IsEmpty]: Start isEmpty. Operand 1085 states and 1342 transitions. [2024-10-11 19:20:42,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-11 19:20:42,976 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:20:42,976 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:20:42,985 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:20:43,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:20:43,181 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-10-11 19:20:43,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:20:43,182 INFO L85 PathProgramCache]: Analyzing trace with hash -408802097, now seen corresponding path program 1 times [2024-10-11 19:20:43,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:20:43,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [629408339] [2024-10-11 19:20:43,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:20:43,182 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 [2024-10-11 19:20:43,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:20:43,187 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:20:43,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:20:43,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:20:43,443 INFO L255 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 19:20:43,446 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:20:43,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:20:43,468 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:20:43,468 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:20:43,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [629408339] [2024-10-11 19:20:43,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [629408339] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:20:43,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:20:43,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:20:43,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513892290] [2024-10-11 19:20:43,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:20:43,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:20:43,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:20:43,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:20:43,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:20:43,470 INFO L87 Difference]: Start difference. First operand 1085 states and 1342 transitions. Second operand has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 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) [2024-10-11 19:20:44,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:20:44,253 INFO L93 Difference]: Finished difference Result 1087 states and 1347 transitions. [2024-10-11 19:20:44,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:20:44,255 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 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 60 [2024-10-11 19:20:44,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:20:44,260 INFO L225 Difference]: With dead ends: 1087 [2024-10-11 19:20:44,260 INFO L226 Difference]: Without dead ends: 1087 [2024-10-11 19:20:44,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:20:44,261 INFO L432 NwaCegarLoop]: 760 mSDtfsCounter, 0 mSDsluCounter, 1514 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2274 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-11 19:20:44,261 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2274 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-11 19:20:44,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1087 states. [2024-10-11 19:20:44,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1087 to 1087. [2024-10-11 19:20:44,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1087 states, 701 states have (on average 1.891583452211127) internal successors, (1326), 1076 states have internal predecessors, (1326), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-10-11 19:20:44,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1087 states to 1087 states and 1347 transitions. [2024-10-11 19:20:44,287 INFO L78 Accepts]: Start accepts. Automaton has 1087 states and 1347 transitions. Word has length 60 [2024-10-11 19:20:44,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:20:44,288 INFO L471 AbstractCegarLoop]: Abstraction has 1087 states and 1347 transitions. [2024-10-11 19:20:44,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 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) [2024-10-11 19:20:44,288 INFO L276 IsEmpty]: Start isEmpty. Operand 1087 states and 1347 transitions. [2024-10-11 19:20:44,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-10-11 19:20:44,290 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:20:44,291 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] [2024-10-11 19:20:44,302 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2024-10-11 19:20:44,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:20:44,493 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-10-11 19:20:44,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:20:44,493 INFO L85 PathProgramCache]: Analyzing trace with hash -555930372, now seen corresponding path program 1 times [2024-10-11 19:20:44,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:20:44,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1709211007] [2024-10-11 19:20:44,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:20:44,494 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 [2024-10-11 19:20:44,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:20:44,497 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:20:44,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:20:44,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:20:44,749 INFO L255 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 19:20:44,751 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:20:44,768 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:20:44,769 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 19:20:44,822 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:20:44,823 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:20:44,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1709211007] [2024-10-11 19:20:44,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1709211007] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 19:20:44,823 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 19:20:44,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-10-11 19:20:44,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519666586] [2024-10-11 19:20:44,824 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 19:20:44,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 19:20:44,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:20:44,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 19:20:44,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-11 19:20:44,825 INFO L87 Difference]: Start difference. First operand 1087 states and 1347 transitions. Second operand has 8 states, 6 states have (on average 10.333333333333334) internal successors, (62), 8 states have internal predecessors, (62), 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) [2024-10-11 19:20:46,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:20:46,266 INFO L93 Difference]: Finished difference Result 1096 states and 1363 transitions. [2024-10-11 19:20:46,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 19:20:46,267 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 10.333333333333334) internal successors, (62), 8 states have internal predecessors, (62), 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 61 [2024-10-11 19:20:46,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:20:46,270 INFO L225 Difference]: With dead ends: 1096 [2024-10-11 19:20:46,270 INFO L226 Difference]: Without dead ends: 1096 [2024-10-11 19:20:46,271 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-10-11 19:20:46,271 INFO L432 NwaCegarLoop]: 758 mSDtfsCounter, 5 mSDsluCounter, 3018 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 3776 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-11 19:20:46,271 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 3776 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-11 19:20:46,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2024-10-11 19:20:46,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 1095. [2024-10-11 19:20:46,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1095 states, 708 states have (on average 1.8912429378531073) internal successors, (1339), 1083 states have internal predecessors, (1339), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-10-11 19:20:46,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1095 states to 1095 states and 1360 transitions. [2024-10-11 19:20:46,287 INFO L78 Accepts]: Start accepts. Automaton has 1095 states and 1360 transitions. Word has length 61 [2024-10-11 19:20:46,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:20:46,288 INFO L471 AbstractCegarLoop]: Abstraction has 1095 states and 1360 transitions. [2024-10-11 19:20:46,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 10.333333333333334) internal successors, (62), 8 states have internal predecessors, (62), 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) [2024-10-11 19:20:46,288 INFO L276 IsEmpty]: Start isEmpty. Operand 1095 states and 1360 transitions. [2024-10-11 19:20:46,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-11 19:20:46,289 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:20:46,289 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] [2024-10-11 19:20:46,297 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:20:46,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:20:46,489 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-10-11 19:20:46,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:20:46,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1584877583, now seen corresponding path program 2 times [2024-10-11 19:20:46,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:20:46,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [28443019] [2024-10-11 19:20:46,490 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 19:20:46,491 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 [2024-10-11 19:20:46,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:20:46,492 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:20:46,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:20:46,834 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 19:20:46,835 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 19:20:46,846 INFO L255 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 19:20:46,848 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:20:46,895 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:20:46,895 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 19:20:47,031 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:20:47,031 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:20:47,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [28443019] [2024-10-11 19:20:47,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [28443019] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 19:20:47,032 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 19:20:47,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-10-11 19:20:47,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373032719] [2024-10-11 19:20:47,032 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 19:20:47,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-11 19:20:47,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:20:47,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-11 19:20:47,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-10-11 19:20:47,034 INFO L87 Difference]: Start difference. First operand 1095 states and 1360 transitions. Second operand has 14 states, 12 states have (on average 5.666666666666667) internal successors, (68), 14 states have internal predecessors, (68), 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) [2024-10-11 19:20:48,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:20:48,893 INFO L93 Difference]: Finished difference Result 1107 states and 1381 transitions. [2024-10-11 19:20:48,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-11 19:20:48,894 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.666666666666667) internal successors, (68), 14 states have internal predecessors, (68), 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 64 [2024-10-11 19:20:48,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:20:48,897 INFO L225 Difference]: With dead ends: 1107 [2024-10-11 19:20:48,897 INFO L226 Difference]: Without dead ends: 1105 [2024-10-11 19:20:48,898 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2024-10-11 19:20:48,898 INFO L432 NwaCegarLoop]: 758 mSDtfsCounter, 7 mSDsluCounter, 3780 mSDsCounter, 0 mSdLazyCounter, 832 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4538 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-11 19:20:48,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 4538 Invalid, 849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 832 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-11 19:20:48,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1105 states. [2024-10-11 19:20:48,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1105 to 1104. [2024-10-11 19:20:48,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1104 states, 717 states have (on average 1.8842398884239888) internal successors, (1351), 1092 states have internal predecessors, (1351), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-10-11 19:20:48,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1104 states to 1104 states and 1372 transitions. [2024-10-11 19:20:48,918 INFO L78 Accepts]: Start accepts. Automaton has 1104 states and 1372 transitions. Word has length 64 [2024-10-11 19:20:48,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:20:48,919 INFO L471 AbstractCegarLoop]: Abstraction has 1104 states and 1372 transitions. [2024-10-11 19:20:48,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.666666666666667) internal successors, (68), 14 states have internal predecessors, (68), 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) [2024-10-11 19:20:48,919 INFO L276 IsEmpty]: Start isEmpty. Operand 1104 states and 1372 transitions. [2024-10-11 19:20:48,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-10-11 19:20:48,920 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:20:48,920 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] [2024-10-11 19:20:48,930 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:20:49,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:20:49,121 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-10-11 19:20:49,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:20:49,121 INFO L85 PathProgramCache]: Analyzing trace with hash -606521105, now seen corresponding path program 3 times [2024-10-11 19:20:49,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:20:49,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [272393705] [2024-10-11 19:20:49,122 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 19:20:49,122 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 [2024-10-11 19:20:49,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:20:49,123 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:20:49,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:20:49,864 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-10-11 19:20:49,864 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 19:20:49,877 INFO L255 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 19:20:49,879 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:20:50,014 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:20:50,014 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 19:20:50,484 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:20:50,484 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:20:50,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [272393705] [2024-10-11 19:20:50,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [272393705] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 19:20:50,484 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 19:20:50,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-10-11 19:20:50,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789780850] [2024-10-11 19:20:50,484 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 19:20:50,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-11 19:20:50,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:20:50,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-11 19:20:50,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-10-11 19:20:50,487 INFO L87 Difference]: Start difference. First operand 1104 states and 1372 transitions. Second operand has 26 states, 24 states have (on average 3.3333333333333335) internal successors, (80), 26 states have internal predecessors, (80), 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) [2024-10-11 19:20:54,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:20:54,827 INFO L93 Difference]: Finished difference Result 1125 states and 1408 transitions. [2024-10-11 19:20:54,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-10-11 19:20:54,827 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 3.3333333333333335) internal successors, (80), 26 states have internal predecessors, (80), 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 70 [2024-10-11 19:20:54,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:20:54,831 INFO L225 Difference]: With dead ends: 1125 [2024-10-11 19:20:54,831 INFO L226 Difference]: Without dead ends: 1122 [2024-10-11 19:20:54,832 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2024-10-11 19:20:54,832 INFO L432 NwaCegarLoop]: 758 mSDtfsCounter, 13 mSDsluCounter, 9064 mSDsCounter, 0 mSdLazyCounter, 2007 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 9822 SdHoareTripleChecker+Invalid, 2018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-10-11 19:20:54,832 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 9822 Invalid, 2018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2007 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-10-11 19:20:54,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1122 states. [2024-10-11 19:20:54,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 1122. [2024-10-11 19:20:54,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1122 states, 735 states have (on average 1.8693877551020408) internal successors, (1374), 1110 states have internal predecessors, (1374), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-10-11 19:20:54,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 1395 transitions. [2024-10-11 19:20:54,852 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 1395 transitions. Word has length 70 [2024-10-11 19:20:54,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:20:54,852 INFO L471 AbstractCegarLoop]: Abstraction has 1122 states and 1395 transitions. [2024-10-11 19:20:54,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 3.3333333333333335) internal successors, (80), 26 states have internal predecessors, (80), 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) [2024-10-11 19:20:54,852 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 1395 transitions. [2024-10-11 19:20:54,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-11 19:20:54,853 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:20:54,853 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] [2024-10-11 19:20:54,866 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:20:55,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:20:55,054 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-10-11 19:20:55,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:20:55,055 INFO L85 PathProgramCache]: Analyzing trace with hash -536046929, now seen corresponding path program 4 times [2024-10-11 19:20:55,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:20:55,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1978055340] [2024-10-11 19:20:55,055 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-11 19:20:55,056 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 [2024-10-11 19:20:55,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:20:55,057 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:20:55,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:20:55,530 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-11 19:20:55,531 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 19:20:55,543 INFO L255 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-10-11 19:20:55,546 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:20:55,850 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:20:55,850 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 19:20:57,030 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:20:57,031 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:20:57,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1978055340] [2024-10-11 19:20:57,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1978055340] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 19:20:57,031 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 19:20:57,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2024-10-11 19:20:57,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480881207] [2024-10-11 19:20:57,031 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 19:20:57,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-10-11 19:20:57,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:20:57,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-10-11 19:20:57,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2024-10-11 19:20:57,035 INFO L87 Difference]: Start difference. First operand 1122 states and 1395 transitions. Second operand has 50 states, 48 states have (on average 2.1666666666666665) internal successors, (104), 50 states have internal predecessors, (104), 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) [2024-10-11 19:21:06,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:21:06,513 INFO L93 Difference]: Finished difference Result 1159 states and 1466 transitions. [2024-10-11 19:21:06,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-10-11 19:21:06,515 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 48 states have (on average 2.1666666666666665) internal successors, (104), 50 states have internal predecessors, (104), 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 82 [2024-10-11 19:21:06,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:21:06,519 INFO L225 Difference]: With dead ends: 1159 [2024-10-11 19:21:06,520 INFO L226 Difference]: Without dead ends: 1157 [2024-10-11 19:21:06,522 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=2713, Invalid=5843, Unknown=0, NotChecked=0, Total=8556 [2024-10-11 19:21:06,522 INFO L432 NwaCegarLoop]: 758 mSDtfsCounter, 25 mSDsluCounter, 17388 mSDsCounter, 0 mSdLazyCounter, 4572 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 18146 SdHoareTripleChecker+Invalid, 4645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 4572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2024-10-11 19:21:06,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 18146 Invalid, 4645 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [73 Valid, 4572 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2024-10-11 19:21:06,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2024-10-11 19:21:06,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 1156. [2024-10-11 19:21:06,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1156 states, 769 states have (on average 1.846553966189857) internal successors, (1420), 1144 states have internal predecessors, (1420), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-10-11 19:21:06,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1156 states to 1156 states and 1441 transitions. [2024-10-11 19:21:06,554 INFO L78 Accepts]: Start accepts. Automaton has 1156 states and 1441 transitions. Word has length 82 [2024-10-11 19:21:06,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:21:06,555 INFO L471 AbstractCegarLoop]: Abstraction has 1156 states and 1441 transitions. [2024-10-11 19:21:06,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 48 states have (on average 2.1666666666666665) internal successors, (104), 50 states have internal predecessors, (104), 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) [2024-10-11 19:21:06,555 INFO L276 IsEmpty]: Start isEmpty. Operand 1156 states and 1441 transitions. [2024-10-11 19:21:06,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-11 19:21:06,556 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:21:06,556 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] [2024-10-11 19:21:06,570 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:21:06,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:21:06,757 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2024-10-11 19:21:06,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:21:06,758 INFO L85 PathProgramCache]: Analyzing trace with hash -908898161, now seen corresponding path program 5 times [2024-10-11 19:21:06,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:21:06,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [631394914] [2024-10-11 19:21:06,758 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-11 19:21:06,758 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 [2024-10-11 19:21:06,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:21:06,759 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:21:06,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:21:07,881 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2024-10-11 19:21:07,881 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 19:21:07,902 INFO L255 TraceCheckSpWp]: Trace formula consists of 762 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-10-11 19:21:07,909 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:21:07,927 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-10-11 19:21:07,927 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 22 [2024-10-11 19:21:08,314 INFO L349 Elim1Store]: treesize reduction 54, result has 29.9 percent of original size [2024-10-11 19:21:08,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 28 treesize of output 45 [2024-10-11 19:21:08,382 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 [2024-10-11 19:21:08,535 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 42 treesize of output 24 [2024-10-11 19:21:11,058 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-10-11 19:21:11,058 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 62 treesize of output 59 [2024-10-11 19:21:11,166 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 51 treesize of output 27 [2024-10-11 19:21:11,229 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-10-11 19:21:11,229 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 19:21:11,536 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1648 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_1648) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (_ bv1 1)))) is different from false [2024-10-11 19:21:11,538 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:21:11,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [631394914] [2024-10-11 19:21:11,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [631394914] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 19:21:11,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [598736428] [2024-10-11 19:21:11,539 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-11 19:21:11,539 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-10-11 19:21:11,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/cvc4 [2024-10-11 19:21:11,542 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-10-11 19:21:11,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process