./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a379a11019678fc2a367efcf212f49fd3083d5f94e928c550866b32de723f686 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 15:50:38,643 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 15:50:38,698 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-12 15:50:38,704 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 15:50:38,705 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 15:50:38,727 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 15:50:38,727 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 15:50:38,727 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 15:50:38,728 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 15:50:38,728 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 15:50:38,729 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 15:50:38,729 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 15:50:38,730 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 15:50:38,733 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 15:50:38,733 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 15:50:38,733 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 15:50:38,734 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 15:50:38,734 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 15:50:38,734 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 15:50:38,734 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 15:50:38,734 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-12 15:50:38,736 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-12 15:50:38,736 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-12 15:50:38,736 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 15:50:38,736 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-12 15:50:38,737 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 15:50:38,737 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 15:50:38,738 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 15:50:38,738 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 15:50:38,738 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 15:50:38,738 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 15:50:38,739 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 15:50:38,739 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 15:50:38,739 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 15:50:38,739 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 15:50:38,740 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 15:50:38,740 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 15:50:38,740 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 15:50:38,741 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 15:50:38,741 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 15:50:38,741 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 15:50:38,744 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 15:50:38,744 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a379a11019678fc2a367efcf212f49fd3083d5f94e928c550866b32de723f686 [2024-11-12 15:50:38,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 15:50:38,974 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 15:50:38,976 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 15:50:38,977 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 15:50:38,978 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 15:50:38,979 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-1.i [2024-11-12 15:50:40,212 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 15:50:40,468 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 15:50:40,468 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-1.i [2024-11-12 15:50:40,484 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e6e4bfae/737d570e0dc3443f90a20b720797f515/FLAG33f566d0d [2024-11-12 15:50:40,497 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e6e4bfae/737d570e0dc3443f90a20b720797f515 [2024-11-12 15:50:40,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 15:50:40,501 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 15:50:40,504 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 15:50:40,504 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 15:50:40,508 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 15:50:40,509 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 03:50:40" (1/1) ... [2024-11-12 15:50:40,511 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7615f597 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:50:40, skipping insertion in model container [2024-11-12 15:50:40,511 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 03:50:40" (1/1) ... [2024-11-12 15:50:40,558 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 15:50:40,848 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 15:50:40,877 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 15:50:40,883 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 15:50:40,889 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 15:50:40,898 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 15:50:40,933 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 15:50:40,934 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 15:50:40,938 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 15:50:40,939 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 15:50:40,944 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 15:50:40,945 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 15:50:40,946 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 15:50:40,946 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 15:50:40,953 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 15:50:40,962 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 15:50:40,977 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) [2024-11-12 15:50:40,977 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3fa6064 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:50:40, skipping insertion in model container [2024-11-12 15:50:40,977 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 15:50:40,977 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-12 15:50:40,983 INFO L158 Benchmark]: Toolchain (without parser) took 476.93ms. Allocated memory is still 167.8MB. Free memory was 95.2MB in the beginning and 127.5MB in the end (delta: -32.3MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2024-11-12 15:50:40,983 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 167.8MB. Free memory is still 121.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 15:50:40,983 INFO L158 Benchmark]: CACSL2BoogieTranslator took 473.56ms. Allocated memory is still 167.8MB. Free memory was 95.0MB in the beginning and 127.5MB in the end (delta: -32.5MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2024-11-12 15:50:40,984 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 167.8MB. Free memory is still 121.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 473.56ms. Allocated memory is still 167.8MB. Free memory was 95.0MB in the beginning and 127.5MB in the end (delta: -32.5MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 747]: 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/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a379a11019678fc2a367efcf212f49fd3083d5f94e928c550866b32de723f686 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 15:50:42,781 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 15:50:42,851 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-12 15:50:42,856 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 15:50:42,856 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 15:50:42,879 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 15:50:42,881 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 15:50:42,881 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 15:50:42,882 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 15:50:42,882 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 15:50:42,883 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 15:50:42,883 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 15:50:42,883 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 15:50:42,885 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 15:50:42,885 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 15:50:42,886 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 15:50:42,886 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 15:50:42,886 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 15:50:42,886 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 15:50:42,886 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 15:50:42,886 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-12 15:50:42,889 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-12 15:50:42,890 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-12 15:50:42,890 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 15:50:42,890 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-12 15:50:42,890 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-12 15:50:42,890 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 15:50:42,891 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-12 15:50:42,891 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 15:50:42,891 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 15:50:42,891 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 15:50:42,891 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 15:50:42,891 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 15:50:42,892 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 15:50:42,892 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 15:50:42,892 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 15:50:42,892 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 15:50:42,892 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 15:50:42,892 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-12 15:50:42,892 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-12 15:50:42,893 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 15:50:42,893 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 15:50:42,893 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 15:50:42,893 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 15:50:42,893 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a379a11019678fc2a367efcf212f49fd3083d5f94e928c550866b32de723f686 [2024-11-12 15:50:43,140 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 15:50:43,171 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 15:50:43,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 15:50:43,178 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 15:50:43,178 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 15:50:43,179 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-1.i [2024-11-12 15:50:44,555 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 15:50:44,807 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 15:50:44,808 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-1.i [2024-11-12 15:50:44,819 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a01cc91d4/3f5778903cfb46d3a361e1088a6f246c/FLAGd2df59ff3 [2024-11-12 15:50:44,828 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a01cc91d4/3f5778903cfb46d3a361e1088a6f246c [2024-11-12 15:50:44,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 15:50:44,831 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 15:50:44,832 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 15:50:44,832 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 15:50:44,836 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 15:50:44,836 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 03:50:44" (1/1) ... [2024-11-12 15:50:44,837 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3970e8e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:50:44, skipping insertion in model container [2024-11-12 15:50:44,837 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 03:50:44" (1/1) ... [2024-11-12 15:50:44,877 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 15:50:45,232 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 15:50:45,260 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 15:50:45,266 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 15:50:45,272 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 15:50:45,279 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 15:50:45,314 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 15:50:45,315 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 15:50:45,317 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 15:50:45,320 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 15:50:45,322 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 15:50:45,326 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 15:50:45,327 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 15:50:45,327 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 15:50:45,330 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 15:50:45,335 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 15:50:45,346 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-12 15:50:45,353 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 15:50:45,365 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 15:50:45,375 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 15:50:45,376 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 15:50:45,383 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 15:50:45,385 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 15:50:45,419 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 15:50:45,420 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 15:50:45,425 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 15:50:45,426 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 15:50:45,427 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 15:50:45,427 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 15:50:45,429 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 15:50:45,430 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 15:50:45,432 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 15:50:45,434 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 15:50:45,436 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 15:50:45,510 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 15:50:45,541 INFO L204 MainTranslator]: Completed translation [2024-11-12 15:50:45,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:50:45 WrapperNode [2024-11-12 15:50:45,542 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 15:50:45,543 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 15:50:45,543 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 15:50:45,543 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 15:50:45,548 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:50:45" (1/1) ... [2024-11-12 15:50:45,575 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:50:45" (1/1) ... [2024-11-12 15:50:45,620 INFO L138 Inliner]: procedures = 180, calls = 279, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1069 [2024-11-12 15:50:45,620 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 15:50:45,621 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 15:50:45,621 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 15:50:45,621 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 15:50:45,637 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:50:45" (1/1) ... [2024-11-12 15:50:45,637 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:50:45" (1/1) ... [2024-11-12 15:50:45,650 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:50:45" (1/1) ... [2024-11-12 15:50:45,709 INFO L175 MemorySlicer]: Split 255 memory accesses to 3 slices as follows [34, 2, 219]. 86 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [0, 2, 0]. The 54 writes are split as follows [4, 0, 50]. [2024-11-12 15:50:45,709 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:50:45" (1/1) ... [2024-11-12 15:50:45,709 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:50:45" (1/1) ... [2024-11-12 15:50:45,742 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:50:45" (1/1) ... [2024-11-12 15:50:45,752 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:50:45" (1/1) ... [2024-11-12 15:50:45,760 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:50:45" (1/1) ... [2024-11-12 15:50:45,768 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:50:45" (1/1) ... [2024-11-12 15:50:45,783 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 15:50:45,783 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 15:50:45,783 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 15:50:45,783 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 15:50:45,784 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:50:45" (1/1) ... [2024-11-12 15:50:45,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 15:50:45,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 15:50:45,822 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 15:50:45,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 15:50:45,871 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-12 15:50:45,872 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-12 15:50:45,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-12 15:50:45,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-12 15:50:45,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-12 15:50:45,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-12 15:50:45,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-12 15:50:45,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-12 15:50:45,873 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-12 15:50:45,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-12 15:50:45,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-12 15:50:45,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-12 15:50:45,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-12 15:50:45,873 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-12 15:50:45,873 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-12 15:50:45,873 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-12 15:50:45,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-12 15:50:45,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 15:50:45,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-12 15:50:45,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-12 15:50:45,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-12 15:50:45,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-12 15:50:45,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-12 15:50:45,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-12 15:50:45,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-12 15:50:45,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-12 15:50:45,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-12 15:50:45,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-12 15:50:45,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-12 15:50:45,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-12 15:50:45,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-12 15:50:45,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-12 15:50:45,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 15:50:45,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 15:50:46,030 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 15:50:46,032 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 15:50:46,049 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-12 15:50:46,073 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-12 15:50:46,085 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-12 15:50:48,754 INFO L? ?]: Removed 1092 outVars from TransFormulas that were not future-live. [2024-11-12 15:50:48,754 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 15:50:48,777 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 15:50:48,777 INFO L316 CfgBuilder]: Removed 63 assume(true) statements. [2024-11-12 15:50:48,778 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 03:50:48 BoogieIcfgContainer [2024-11-12 15:50:48,778 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 15:50:48,779 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 15:50:48,779 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 15:50:48,781 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 15:50:48,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 03:50:44" (1/3) ... [2024-11-12 15:50:48,782 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2617784f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 03:50:48, skipping insertion in model container [2024-11-12 15:50:48,782 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:50:45" (2/3) ... [2024-11-12 15:50:48,782 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2617784f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 03:50:48, skipping insertion in model container [2024-11-12 15:50:48,782 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 03:50:48" (3/3) ... [2024-11-12 15:50:48,783 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test3-1.i [2024-11-12 15:50:48,797 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 15:50:48,797 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 527 error locations. [2024-11-12 15:50:48,858 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 15:50:48,863 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;@6fe6ee5c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 15:50:48,864 INFO L334 AbstractCegarLoop]: Starting to check reachability of 527 error locations. [2024-11-12 15:50:48,873 INFO L276 IsEmpty]: Start isEmpty. Operand has 1074 states, 536 states have (on average 2.218283582089552) internal successors, (1189), 1067 states have internal predecessors, (1189), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-12 15:50:48,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-12 15:50:48,879 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 15:50:48,880 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-12 15:50:48,880 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-12 15:50:48,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 15:50:48,884 INFO L85 PathProgramCache]: Analyzing trace with hash 65605, now seen corresponding path program 1 times [2024-11-12 15:50:48,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-12 15:50:48,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [49818179] [2024-11-12 15:50:48,893 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 15:50:48,893 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 [2024-11-12 15:50:48,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-12 15:50:48,898 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-12 15:50:48,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-12 15:50:48,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 15:50:48,999 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-12 15:50:49,003 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 15:50:49,042 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 [2024-11-12 15:50:49,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 15:50:49,051 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 15:50:49,051 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-12 15:50:49,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [49818179] [2024-11-12 15:50:49,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [49818179] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 15:50:49,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 15:50:49,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 15:50:49,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537759251] [2024-11-12 15:50:49,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 15:50:49,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 15:50:49,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-12 15:50:49,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 15:50:49,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 15:50:49,098 INFO L87 Difference]: Start difference. First operand has 1074 states, 536 states have (on average 2.218283582089552) internal successors, (1189), 1067 states have internal predecessors, (1189), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 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) [2024-11-12 15:50:50,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 15:50:50,057 INFO L93 Difference]: Finished difference Result 1069 states and 1135 transitions. [2024-11-12 15:50:50,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 15:50:50,060 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 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 [2024-11-12 15:50:50,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 15:50:50,074 INFO L225 Difference]: With dead ends: 1069 [2024-11-12 15:50:50,074 INFO L226 Difference]: Without dead ends: 1067 [2024-11-12 15:50:50,075 INFO L434 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 [2024-11-12 15:50:50,078 INFO L435 NwaCegarLoop]: 652 mSDtfsCounter, 979 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 987 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-12 15:50:50,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [987 Valid, 715 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-12 15:50:50,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2024-11-12 15:50:50,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 1059. [2024-11-12 15:50:50,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1059 states, 538 states have (on average 2.057620817843866) internal successors, (1107), 1052 states have internal predecessors, (1107), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-12 15:50:50,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1059 states to 1059 states and 1125 transitions. [2024-11-12 15:50:50,140 INFO L78 Accepts]: Start accepts. Automaton has 1059 states and 1125 transitions. Word has length 3 [2024-11-12 15:50:50,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 15:50:50,141 INFO L471 AbstractCegarLoop]: Abstraction has 1059 states and 1125 transitions. [2024-11-12 15:50:50,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 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) [2024-11-12 15:50:50,141 INFO L276 IsEmpty]: Start isEmpty. Operand 1059 states and 1125 transitions. [2024-11-12 15:50:50,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-12 15:50:50,141 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 15:50:50,142 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-12 15:50:50,145 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-12 15:50:50,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-12 15:50:50,344 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-12 15:50:50,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 15:50:50,345 INFO L85 PathProgramCache]: Analyzing trace with hash 65606, now seen corresponding path program 1 times [2024-11-12 15:50:50,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-12 15:50:50,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1724907586] [2024-11-12 15:50:50,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 15:50:50,345 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 [2024-11-12 15:50:50,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-12 15:50:50,348 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-12 15:50:50,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-12 15:50:50,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 15:50:50,458 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 15:50:50,459 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 15:50:50,465 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 [2024-11-12 15:50:50,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 15:50:50,474 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 15:50:50,474 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-12 15:50:50,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1724907586] [2024-11-12 15:50:50,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1724907586] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 15:50:50,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 15:50:50,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 15:50:50,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242394781] [2024-11-12 15:50:50,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 15:50:50,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 15:50:50,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-12 15:50:50,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 15:50:50,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 15:50:50,477 INFO L87 Difference]: Start difference. First operand 1059 states and 1125 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 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) [2024-11-12 15:50:51,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 15:50:51,995 INFO L93 Difference]: Finished difference Result 1477 states and 1585 transitions. [2024-11-12 15:50:51,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 15:50:51,996 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 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 [2024-11-12 15:50:51,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 15:50:52,000 INFO L225 Difference]: With dead ends: 1477 [2024-11-12 15:50:52,001 INFO L226 Difference]: Without dead ends: 1477 [2024-11-12 15:50:52,001 INFO L434 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 [2024-11-12 15:50:52,003 INFO L435 NwaCegarLoop]: 924 mSDtfsCounter, 448 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 1517 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-12 15:50:52,004 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [453 Valid, 1517 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 712 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-12 15:50:52,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1477 states. [2024-11-12 15:50:52,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1477 to 1267. [2024-11-12 15:50:52,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1267 states, 747 states have (on average 2.0468540829986615) internal successors, (1529), 1260 states have internal predecessors, (1529), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-12 15:50:52,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1267 states to 1267 states and 1547 transitions. [2024-11-12 15:50:52,038 INFO L78 Accepts]: Start accepts. Automaton has 1267 states and 1547 transitions. Word has length 3 [2024-11-12 15:50:52,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 15:50:52,039 INFO L471 AbstractCegarLoop]: Abstraction has 1267 states and 1547 transitions. [2024-11-12 15:50:52,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 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) [2024-11-12 15:50:52,039 INFO L276 IsEmpty]: Start isEmpty. Operand 1267 states and 1547 transitions. [2024-11-12 15:50:52,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-12 15:50:52,039 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 15:50:52,040 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-12 15:50:52,042 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-12 15:50:52,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-12 15:50:52,242 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-12 15:50:52,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 15:50:52,246 INFO L85 PathProgramCache]: Analyzing trace with hash 458521935, now seen corresponding path program 1 times [2024-11-12 15:50:52,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-12 15:50:52,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1159276799] [2024-11-12 15:50:52,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 15:50:52,247 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-12 15:50:52,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-12 15:50:52,250 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-12 15:50:52,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-12 15:50:52,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 15:50:52,378 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-12 15:50:52,380 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 15:50:52,393 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 [2024-11-12 15:50:52,402 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 [2024-11-12 15:50:52,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 15:50:52,472 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 [2024-11-12 15:50:52,488 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-12 15:50:52,489 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 [2024-11-12 15:50:52,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 15:50:52,515 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 15:50:52,515 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-12 15:50:52,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1159276799] [2024-11-12 15:50:52,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1159276799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 15:50:52,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 15:50:52,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 15:50:52,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850313365] [2024-11-12 15:50:52,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 15:50:52,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 15:50:52,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-12 15:50:52,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 15:50:52,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-12 15:50:52,520 INFO L87 Difference]: Start difference. First operand 1267 states and 1547 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 15:50:54,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 15:50:54,050 INFO L93 Difference]: Finished difference Result 1269 states and 1551 transitions. [2024-11-12 15:50:54,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 15:50:54,051 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-12 15:50:54,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 15:50:54,054 INFO L225 Difference]: With dead ends: 1269 [2024-11-12 15:50:54,054 INFO L226 Difference]: Without dead ends: 1269 [2024-11-12 15:50:54,054 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-12 15:50:54,057 INFO L435 NwaCegarLoop]: 382 mSDtfsCounter, 2047 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 814 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2055 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-12 15:50:54,057 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2055 Valid, 424 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 814 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-12 15:50:54,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1269 states. [2024-11-12 15:50:54,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1269 to 1047. [2024-11-12 15:50:54,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1047 states, 538 states have (on average 2.033457249070632) internal successors, (1094), 1040 states have internal predecessors, (1094), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-12 15:50:54,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1047 states to 1047 states and 1112 transitions. [2024-11-12 15:50:54,073 INFO L78 Accepts]: Start accepts. Automaton has 1047 states and 1112 transitions. Word has length 7 [2024-11-12 15:50:54,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 15:50:54,075 INFO L471 AbstractCegarLoop]: Abstraction has 1047 states and 1112 transitions. [2024-11-12 15:50:54,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 15:50:54,075 INFO L276 IsEmpty]: Start isEmpty. Operand 1047 states and 1112 transitions. [2024-11-12 15:50:54,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-12 15:50:54,075 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 15:50:54,076 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 15:50:54,083 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-11-12 15:50:54,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-12 15:50:54,277 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-12 15:50:54,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 15:50:54,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1329278099, now seen corresponding path program 1 times [2024-11-12 15:50:54,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-12 15:50:54,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [281125992] [2024-11-12 15:50:54,278 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 15:50:54,278 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-12 15:50:54,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-12 15:50:54,280 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-12 15:50:54,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-12 15:50:54,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 15:50:54,366 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 15:50:54,367 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 15:50:54,382 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-12 15:50:54,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 15:50:54,408 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 15:50:54,408 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-12 15:50:54,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [281125992] [2024-11-12 15:50:54,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [281125992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 15:50:54,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 15:50:54,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 15:50:54,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920502610] [2024-11-12 15:50:54,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 15:50:54,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 15:50:54,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-12 15:50:54,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 15:50:54,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 15:50:54,410 INFO L87 Difference]: Start difference. First operand 1047 states and 1112 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2024-11-12 15:50:56,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 15:50:56,032 INFO L93 Difference]: Finished difference Result 1518 states and 1620 transitions. [2024-11-12 15:50:56,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 15:50:56,032 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2024-11-12 15:50:56,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 15:50:56,036 INFO L225 Difference]: With dead ends: 1518 [2024-11-12 15:50:56,036 INFO L226 Difference]: Without dead ends: 1518 [2024-11-12 15:50:56,036 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 15:50:56,037 INFO L435 NwaCegarLoop]: 1199 mSDtfsCounter, 691 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 788 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 1643 SdHoareTripleChecker+Invalid, 801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-12 15:50:56,037 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [691 Valid, 1643 Invalid, 801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 788 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-12 15:50:56,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1518 states. [2024-11-12 15:50:56,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1518 to 1074. [2024-11-12 15:50:56,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1074 states, 575 states have (on average 2.0208695652173914) internal successors, (1162), 1067 states have internal predecessors, (1162), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-12 15:50:56,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1074 states to 1074 states and 1180 transitions. [2024-11-12 15:50:56,050 INFO L78 Accepts]: Start accepts. Automaton has 1074 states and 1180 transitions. Word has length 8 [2024-11-12 15:50:56,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 15:50:56,051 INFO L471 AbstractCegarLoop]: Abstraction has 1074 states and 1180 transitions. [2024-11-12 15:50:56,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2024-11-12 15:50:56,051 INFO L276 IsEmpty]: Start isEmpty. Operand 1074 states and 1180 transitions. [2024-11-12 15:50:56,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-12 15:50:56,051 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 15:50:56,051 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 15:50:56,056 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-11-12 15:50:56,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-12 15:50:56,252 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-12 15:50:56,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 15:50:56,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1329278098, now seen corresponding path program 1 times [2024-11-12 15:50:56,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-12 15:50:56,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1849228692] [2024-11-12 15:50:56,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 15:50:56,253 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 [2024-11-12 15:50:56,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-12 15:50:56,257 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-12 15:50:56,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-12 15:50:56,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 15:50:56,339 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-12 15:50:56,341 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 15:50:56,346 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 [2024-11-12 15:50:56,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 15:50:56,362 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 15:50:56,362 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-12 15:50:56,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1849228692] [2024-11-12 15:50:56,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1849228692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 15:50:56,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 15:50:56,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 15:50:56,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75104498] [2024-11-12 15:50:56,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 15:50:56,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 15:50:56,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-12 15:50:56,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 15:50:56,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 15:50:56,364 INFO L87 Difference]: Start difference. First operand 1074 states and 1180 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2024-11-12 15:50:57,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 15:50:57,382 INFO L93 Difference]: Finished difference Result 1407 states and 1539 transitions. [2024-11-12 15:50:57,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 15:50:57,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2024-11-12 15:50:57,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 15:50:57,386 INFO L225 Difference]: With dead ends: 1407 [2024-11-12 15:50:57,386 INFO L226 Difference]: Without dead ends: 1407 [2024-11-12 15:50:57,386 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 15:50:57,390 INFO L435 NwaCegarLoop]: 969 mSDtfsCounter, 939 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 947 SdHoareTripleChecker+Valid, 1216 SdHoareTripleChecker+Invalid, 795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-12 15:50:57,391 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [947 Valid, 1216 Invalid, 795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 742 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-12 15:50:57,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1407 states. [2024-11-12 15:50:57,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1407 to 1025. [2024-11-12 15:50:57,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 575 states have (on average 1.9286956521739131) internal successors, (1109), 1018 states have internal predecessors, (1109), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-12 15:50:57,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1127 transitions. [2024-11-12 15:50:57,407 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1127 transitions. Word has length 8 [2024-11-12 15:50:57,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 15:50:57,408 INFO L471 AbstractCegarLoop]: Abstraction has 1025 states and 1127 transitions. [2024-11-12 15:50:57,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2024-11-12 15:50:57,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1127 transitions. [2024-11-12 15:50:57,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-12 15:50:57,408 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 15:50:57,408 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 15:50:57,415 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-12 15:50:57,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-12 15:50:57,612 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr519REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-12 15:50:57,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 15:50:57,613 INFO L85 PathProgramCache]: Analyzing trace with hash -285594881, now seen corresponding path program 1 times [2024-11-12 15:50:57,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-12 15:50:57,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [831059959] [2024-11-12 15:50:57,614 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 15:50:57,614 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 [2024-11-12 15:50:57,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-12 15:50:57,615 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-12 15:50:57,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-12 15:50:57,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 15:50:57,718 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-12 15:50:57,719 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 15:50:57,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 15:50:57,798 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 15:50:57,798 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-12 15:50:57,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [831059959] [2024-11-12 15:50:57,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [831059959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 15:50:57,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 15:50:57,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 15:50:57,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078655941] [2024-11-12 15:50:57,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 15:50:57,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 15:50:57,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-12 15:50:57,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 15:50:57,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 15:50:57,803 INFO L87 Difference]: Start difference. First operand 1025 states and 1127 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2024-11-12 15:50:58,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 15:50:58,218 INFO L93 Difference]: Finished difference Result 1450 states and 1607 transitions. [2024-11-12 15:50:58,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 15:50:58,219 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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 [2024-11-12 15:50:58,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 15:50:58,227 INFO L225 Difference]: With dead ends: 1450 [2024-11-12 15:50:58,227 INFO L226 Difference]: Without dead ends: 1450 [2024-11-12 15:50:58,228 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 15:50:58,229 INFO L435 NwaCegarLoop]: 1113 mSDtfsCounter, 449 mSDsluCounter, 1971 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 3084 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-12 15:50:58,230 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [449 Valid, 3084 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-12 15:50:58,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1450 states. [2024-11-12 15:50:58,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1450 to 1270. [2024-11-12 15:50:58,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1270 states, 820 states have (on average 1.9134146341463414) internal successors, (1569), 1263 states have internal predecessors, (1569), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-12 15:50:58,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 1587 transitions. [2024-11-12 15:50:58,257 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 1587 transitions. Word has length 11 [2024-11-12 15:50:58,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 15:50:58,258 INFO L471 AbstractCegarLoop]: Abstraction has 1270 states and 1587 transitions. [2024-11-12 15:50:58,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2024-11-12 15:50:58,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 1587 transitions. [2024-11-12 15:50:58,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-12 15:50:58,260 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 15:50:58,260 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 15:50:58,263 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-12 15:50:58,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-12 15:50:58,464 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr525ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-12 15:50:58,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 15:50:58,464 INFO L85 PathProgramCache]: Analyzing trace with hash -263505449, now seen corresponding path program 1 times [2024-11-12 15:50:58,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-12 15:50:58,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [679447460] [2024-11-12 15:50:58,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 15:50:58,467 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 [2024-11-12 15:50:58,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-12 15:50:58,468 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-12 15:50:58,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-12 15:50:58,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 15:50:58,586 INFO L256 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-12 15:50:58,587 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 15:50:58,599 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-12 15:50:58,599 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-12 15:50:58,601 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-12 15:50:58,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2024-11-12 15:50:58,677 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 15:50:58,678 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2024-11-12 15:50:58,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 15:50:58,692 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 15:50:58,692 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-12 15:50:58,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [679447460] [2024-11-12 15:50:58,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [679447460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 15:50:58,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 15:50:58,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 15:50:58,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416028606] [2024-11-12 15:50:58,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 15:50:58,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 15:50:58,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-12 15:50:58,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 15:50:58,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 15:50:58,693 INFO L87 Difference]: Start difference. First operand 1270 states and 1587 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 15:50:59,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 15:50:59,032 INFO L93 Difference]: Finished difference Result 2189 states and 2611 transitions. [2024-11-12 15:50:59,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 15:50:59,033 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-12 15:50:59,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 15:50:59,038 INFO L225 Difference]: With dead ends: 2189 [2024-11-12 15:50:59,038 INFO L226 Difference]: Without dead ends: 2189 [2024-11-12 15:50:59,038 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-12 15:50:59,038 INFO L435 NwaCegarLoop]: 1225 mSDtfsCounter, 964 mSDsluCounter, 2218 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 972 SdHoareTripleChecker+Valid, 3443 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 15:50:59,039 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [972 Valid, 3443 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 15:50:59,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2189 states. [2024-11-12 15:50:59,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2189 to 1269. [2024-11-12 15:50:59,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1269 states, 819 states have (on average 1.9133089133089134) internal successors, (1567), 1262 states have internal predecessors, (1567), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-12 15:50:59,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1269 states to 1269 states and 1585 transitions. [2024-11-12 15:50:59,082 INFO L78 Accepts]: Start accepts. Automaton has 1269 states and 1585 transitions. Word has length 12 [2024-11-12 15:50:59,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 15:50:59,082 INFO L471 AbstractCegarLoop]: Abstraction has 1269 states and 1585 transitions. [2024-11-12 15:50:59,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 15:50:59,083 INFO L276 IsEmpty]: Start isEmpty. Operand 1269 states and 1585 transitions. [2024-11-12 15:50:59,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-12 15:50:59,083 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 15:50:59,083 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 15:50:59,088 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2024-11-12 15:50:59,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-12 15:50:59,284 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-12 15:50:59,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 15:50:59,285 INFO L85 PathProgramCache]: Analyzing trace with hash 183846334, now seen corresponding path program 1 times [2024-11-12 15:50:59,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-12 15:50:59,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [828545841] [2024-11-12 15:50:59,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 15:50:59,286 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 [2024-11-12 15:50:59,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-12 15:50:59,288 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-12 15:50:59,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-12 15:50:59,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 15:50:59,418 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 15:50:59,419 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 15:50:59,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 15:50:59,428 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 15:50:59,428 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-12 15:50:59,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [828545841] [2024-11-12 15:50:59,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [828545841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 15:50:59,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 15:50:59,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 15:50:59,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349175981] [2024-11-12 15:50:59,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 15:50:59,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 15:50:59,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-12 15:50:59,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 15:50:59,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 15:50:59,430 INFO L87 Difference]: Start difference. First operand 1269 states and 1585 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2024-11-12 15:50:59,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 15:50:59,452 INFO L93 Difference]: Finished difference Result 1209 states and 1499 transitions. [2024-11-12 15:50:59,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 15:50:59,453 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2024-11-12 15:50:59,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 15:50:59,455 INFO L225 Difference]: With dead ends: 1209 [2024-11-12 15:50:59,456 INFO L226 Difference]: Without dead ends: 1209 [2024-11-12 15:50:59,456 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 15:50:59,456 INFO L435 NwaCegarLoop]: 990 mSDtfsCounter, 71 mSDsluCounter, 927 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 1917 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 15:50:59,456 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 1917 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 15:50:59,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1209 states. [2024-11-12 15:50:59,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1209 to 1209. [2024-11-12 15:50:59,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1209 states, 783 states have (on average 1.8914431673052363) internal successors, (1481), 1202 states have internal predecessors, (1481), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-12 15:50:59,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1209 states to 1209 states and 1499 transitions. [2024-11-12 15:50:59,472 INFO L78 Accepts]: Start accepts. Automaton has 1209 states and 1499 transitions. Word has length 18 [2024-11-12 15:50:59,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 15:50:59,472 INFO L471 AbstractCegarLoop]: Abstraction has 1209 states and 1499 transitions. [2024-11-12 15:50:59,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2024-11-12 15:50:59,473 INFO L276 IsEmpty]: Start isEmpty. Operand 1209 states and 1499 transitions. [2024-11-12 15:50:59,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-12 15:50:59,473 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 15:50:59,473 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 15:50:59,482 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2024-11-12 15:50:59,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-12 15:50:59,677 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-12 15:50:59,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 15:50:59,678 INFO L85 PathProgramCache]: Analyzing trace with hash 582665080, now seen corresponding path program 1 times [2024-11-12 15:50:59,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-12 15:50:59,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2016295120] [2024-11-12 15:50:59,679 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 15:50:59,679 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 [2024-11-12 15:50:59,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-12 15:50:59,681 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-12 15:50:59,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-12 15:50:59,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 15:50:59,797 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-12 15:50:59,799 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 15:50:59,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 15:50:59,813 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 15:50:59,814 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-12 15:50:59,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2016295120] [2024-11-12 15:50:59,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2016295120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 15:50:59,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 15:50:59,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 15:50:59,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870765851] [2024-11-12 15:50:59,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 15:50:59,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 15:50:59,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-12 15:50:59,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 15:50:59,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 15:50:59,815 INFO L87 Difference]: Start difference. First operand 1209 states and 1499 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2024-11-12 15:50:59,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 15:50:59,862 INFO L93 Difference]: Finished difference Result 1179 states and 1441 transitions. [2024-11-12 15:50:59,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 15:50:59,863 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 20 [2024-11-12 15:50:59,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 15:50:59,865 INFO L225 Difference]: With dead ends: 1179 [2024-11-12 15:50:59,865 INFO L226 Difference]: Without dead ends: 1179 [2024-11-12 15:50:59,866 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-12 15:50:59,866 INFO L435 NwaCegarLoop]: 945 mSDtfsCounter, 48 mSDsluCounter, 1864 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 2809 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 15:50:59,866 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 2809 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 15:50:59,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1179 states. [2024-11-12 15:50:59,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1179 to 1179. [2024-11-12 15:50:59,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1179 states, 767 states have (on average 1.8552803129074316) internal successors, (1423), 1172 states have internal predecessors, (1423), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-12 15:50:59,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1179 states to 1179 states and 1441 transitions. [2024-11-12 15:50:59,877 INFO L78 Accepts]: Start accepts. Automaton has 1179 states and 1441 transitions. Word has length 20 [2024-11-12 15:50:59,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 15:50:59,878 INFO L471 AbstractCegarLoop]: Abstraction has 1179 states and 1441 transitions. [2024-11-12 15:50:59,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2024-11-12 15:50:59,878 INFO L276 IsEmpty]: Start isEmpty. Operand 1179 states and 1441 transitions. [2024-11-12 15:50:59,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-12 15:50:59,878 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 15:50:59,878 INFO L218 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] [2024-11-12 15:50:59,883 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2024-11-12 15:51:00,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-12 15:51:00,082 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-12 15:51:00,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 15:51:00,083 INFO L85 PathProgramCache]: Analyzing trace with hash -195006074, now seen corresponding path program 1 times [2024-11-12 15:51:00,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-12 15:51:00,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [549341804] [2024-11-12 15:51:00,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 15:51:00,083 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 [2024-11-12 15:51:00,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-12 15:51:00,086 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-12 15:51:00,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-11-12 15:51:00,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 15:51:00,204 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 15:51:00,206 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 15:51:00,217 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 [2024-11-12 15:51:00,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 15:51:00,265 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 15:51:00,265 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-12 15:51:00,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [549341804] [2024-11-12 15:51:00,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [549341804] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 15:51:00,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 15:51:00,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 15:51:00,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477706323] [2024-11-12 15:51:00,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 15:51:00,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 15:51:00,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-12 15:51:00,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 15:51:00,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 15:51:00,266 INFO L87 Difference]: Start difference. First operand 1179 states and 1441 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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) [2024-11-12 15:51:01,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 15:51:01,626 INFO L93 Difference]: Finished difference Result 1639 states and 2022 transitions. [2024-11-12 15:51:01,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 15:51:01,627 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 34 [2024-11-12 15:51:01,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 15:51:01,631 INFO L225 Difference]: With dead ends: 1639 [2024-11-12 15:51:01,631 INFO L226 Difference]: Without dead ends: 1639 [2024-11-12 15:51:01,632 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-12 15:51:01,632 INFO L435 NwaCegarLoop]: 523 mSDtfsCounter, 872 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 1186 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 880 SdHoareTripleChecker+Valid, 1222 SdHoareTripleChecker+Invalid, 1194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-12 15:51:01,633 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [880 Valid, 1222 Invalid, 1194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1186 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-12 15:51:01,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1639 states. [2024-11-12 15:51:01,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1639 to 1175. [2024-11-12 15:51:01,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1175 states, 767 states have (on average 1.8448500651890483) internal successors, (1415), 1168 states have internal predecessors, (1415), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-12 15:51:01,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1175 states to 1175 states and 1433 transitions. [2024-11-12 15:51:01,648 INFO L78 Accepts]: Start accepts. Automaton has 1175 states and 1433 transitions. Word has length 34 [2024-11-12 15:51:01,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 15:51:01,648 INFO L471 AbstractCegarLoop]: Abstraction has 1175 states and 1433 transitions. [2024-11-12 15:51:01,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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) [2024-11-12 15:51:01,649 INFO L276 IsEmpty]: Start isEmpty. Operand 1175 states and 1433 transitions. [2024-11-12 15:51:01,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-12 15:51:01,650 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 15:51:01,650 INFO L218 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] [2024-11-12 15:51:01,657 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-11-12 15:51:01,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-12 15:51:01,854 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-12 15:51:01,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 15:51:01,855 INFO L85 PathProgramCache]: Analyzing trace with hash -195006073, now seen corresponding path program 1 times [2024-11-12 15:51:01,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-12 15:51:01,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1278097854] [2024-11-12 15:51:01,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 15:51:01,855 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 [2024-11-12 15:51:01,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-12 15:51:01,857 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-12 15:51:01,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-12 15:51:01,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 15:51:01,972 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-12 15:51:01,974 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 15:51:01,983 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 [2024-11-12 15:51:02,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 15:51:02,093 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 15:51:02,093 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-12 15:51:02,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1278097854] [2024-11-12 15:51:02,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1278097854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 15:51:02,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 15:51:02,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 15:51:02,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253275475] [2024-11-12 15:51:02,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 15:51:02,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 15:51:02,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-12 15:51:02,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 15:51:02,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 15:51:02,094 INFO L87 Difference]: Start difference. First operand 1175 states and 1433 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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) [2024-11-12 15:51:04,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 15:51:04,039 INFO L93 Difference]: Finished difference Result 1780 states and 2186 transitions. [2024-11-12 15:51:04,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 15:51:04,039 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 34 [2024-11-12 15:51:04,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 15:51:04,043 INFO L225 Difference]: With dead ends: 1780 [2024-11-12 15:51:04,043 INFO L226 Difference]: Without dead ends: 1780 [2024-11-12 15:51:04,043 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-12 15:51:04,044 INFO L435 NwaCegarLoop]: 1209 mSDtfsCounter, 620 mSDsluCounter, 1211 mSDsCounter, 0 mSdLazyCounter, 1356 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 2420 SdHoareTripleChecker+Invalid, 1359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-12 15:51:04,044 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [620 Valid, 2420 Invalid, 1359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1356 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-12 15:51:04,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1780 states. [2024-11-12 15:51:04,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1780 to 1171. [2024-11-12 15:51:04,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1171 states, 767 states have (on average 1.834419817470665) internal successors, (1407), 1164 states have internal predecessors, (1407), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-12 15:51:04,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1171 states to 1171 states and 1425 transitions. [2024-11-12 15:51:04,056 INFO L78 Accepts]: Start accepts. Automaton has 1171 states and 1425 transitions. Word has length 34 [2024-11-12 15:51:04,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 15:51:04,056 INFO L471 AbstractCegarLoop]: Abstraction has 1171 states and 1425 transitions. [2024-11-12 15:51:04,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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) [2024-11-12 15:51:04,056 INFO L276 IsEmpty]: Start isEmpty. Operand 1171 states and 1425 transitions. [2024-11-12 15:51:04,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-12 15:51:04,057 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 15:51:04,057 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 15:51:04,062 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2024-11-12 15:51:04,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-12 15:51:04,261 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-12 15:51:04,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 15:51:04,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1181697534, now seen corresponding path program 1 times [2024-11-12 15:51:04,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-12 15:51:04,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [226914142] [2024-11-12 15:51:04,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 15:51:04,262 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 [2024-11-12 15:51:04,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-12 15:51:04,264 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-12 15:51:04,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-12 15:51:04,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 15:51:04,444 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-12 15:51:04,446 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 15:51:04,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 15:51:04,493 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 15:51:04,494 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-12 15:51:04,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [226914142] [2024-11-12 15:51:04,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [226914142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 15:51:04,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 15:51:04,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 15:51:04,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785647047] [2024-11-12 15:51:04,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 15:51:04,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 15:51:04,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-12 15:51:04,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 15:51:04,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 15:51:04,495 INFO L87 Difference]: Start difference. First operand 1171 states and 1425 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 15:51:04,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 15:51:04,560 INFO L93 Difference]: Finished difference Result 1159 states and 1405 transitions. [2024-11-12 15:51:04,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 15:51:04,560 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2024-11-12 15:51:04,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 15:51:04,563 INFO L225 Difference]: With dead ends: 1159 [2024-11-12 15:51:04,563 INFO L226 Difference]: Without dead ends: 1159 [2024-11-12 15:51:04,563 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-12 15:51:04,563 INFO L435 NwaCegarLoop]: 939 mSDtfsCounter, 21 mSDsluCounter, 1847 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 2786 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 15:51:04,563 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 2786 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 15:51:04,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2024-11-12 15:51:04,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 1159. [2024-11-12 15:51:04,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1159 states, 755 states have (on average 1.8370860927152317) internal successors, (1387), 1152 states have internal predecessors, (1387), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-12 15:51:04,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1159 states to 1159 states and 1405 transitions. [2024-11-12 15:51:04,580 INFO L78 Accepts]: Start accepts. Automaton has 1159 states and 1405 transitions. Word has length 53 [2024-11-12 15:51:04,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 15:51:04,581 INFO L471 AbstractCegarLoop]: Abstraction has 1159 states and 1405 transitions. [2024-11-12 15:51:04,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 15:51:04,581 INFO L276 IsEmpty]: Start isEmpty. Operand 1159 states and 1405 transitions. [2024-11-12 15:51:04,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-12 15:51:04,581 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 15:51:04,582 INFO L218 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] [2024-11-12 15:51:04,591 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-11-12 15:51:04,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-12 15:51:04,782 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-12 15:51:04,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 15:51:04,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1740051530, now seen corresponding path program 1 times [2024-11-12 15:51:04,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-12 15:51:04,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1661255206] [2024-11-12 15:51:04,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 15:51:04,784 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 [2024-11-12 15:51:04,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-12 15:51:04,786 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-12 15:51:04,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-11-12 15:51:05,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 15:51:05,037 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-12 15:51:05,040 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 15:51:05,050 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 [2024-11-12 15:51:05,060 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 [2024-11-12 15:51:05,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 15:51:05,526 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 [2024-11-12 15:51:05,537 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-12 15:51:05,538 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 [2024-11-12 15:51:05,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 15:51:05,548 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 15:51:05,548 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-12 15:51:05,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1661255206] [2024-11-12 15:51:05,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1661255206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 15:51:05,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 15:51:05,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 15:51:05,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390451962] [2024-11-12 15:51:05,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 15:51:05,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 15:51:05,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-12 15:51:05,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 15:51:05,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-12 15:51:05,549 INFO L87 Difference]: Start difference. First operand 1159 states and 1405 transitions. Second operand has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 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) [2024-11-12 15:51:07,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 15:51:07,000 INFO L93 Difference]: Finished difference Result 1577 states and 1948 transitions. [2024-11-12 15:51:07,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 15:51:07,000 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 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 61 [2024-11-12 15:51:07,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 15:51:07,004 INFO L225 Difference]: With dead ends: 1577 [2024-11-12 15:51:07,004 INFO L226 Difference]: Without dead ends: 1577 [2024-11-12 15:51:07,004 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-12 15:51:07,004 INFO L435 NwaCegarLoop]: 347 mSDtfsCounter, 1981 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 877 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1984 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-12 15:51:07,005 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1984 Valid, 528 Invalid, 923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 877 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-12 15:51:07,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1577 states. [2024-11-12 15:51:07,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1577 to 1084. [2024-11-12 15:51:07,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 718 states have (on average 1.775766016713092) internal successors, (1275), 1077 states have internal predecessors, (1275), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-12 15:51:07,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1293 transitions. [2024-11-12 15:51:07,017 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1293 transitions. Word has length 61 [2024-11-12 15:51:07,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 15:51:07,017 INFO L471 AbstractCegarLoop]: Abstraction has 1084 states and 1293 transitions. [2024-11-12 15:51:07,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 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) [2024-11-12 15:51:07,018 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1293 transitions. [2024-11-12 15:51:07,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-12 15:51:07,020 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 15:51:07,020 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 15:51:07,031 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-11-12 15:51:07,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-12 15:51:07,225 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-12 15:51:07,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 15:51:07,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1654454369, now seen corresponding path program 1 times [2024-11-12 15:51:07,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-12 15:51:07,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1485774757] [2024-11-12 15:51:07,226 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 15:51:07,226 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-12 15:51:07,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-12 15:51:07,228 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-12 15:51:07,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-11-12 15:51:07,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 15:51:07,462 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-12 15:51:07,465 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 15:51:07,473 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 [2024-11-12 15:51:07,486 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 [2024-11-12 15:51:07,512 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 [2024-11-12 15:51:07,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 15:51:07,519 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 15:51:07,520 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-12 15:51:07,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1485774757] [2024-11-12 15:51:07,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1485774757] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 15:51:07,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 15:51:07,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 15:51:07,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422841873] [2024-11-12 15:51:07,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 15:51:07,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 15:51:07,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-12 15:51:07,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 15:51:07,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 15:51:07,521 INFO L87 Difference]: Start difference. First operand 1084 states and 1293 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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) [2024-11-12 15:51:08,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 15:51:08,748 INFO L93 Difference]: Finished difference Result 1083 states and 1292 transitions. [2024-11-12 15:51:08,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 15:51:08,748 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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 66 [2024-11-12 15:51:08,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 15:51:08,750 INFO L225 Difference]: With dead ends: 1083 [2024-11-12 15:51:08,751 INFO L226 Difference]: Without dead ends: 1083 [2024-11-12 15:51:08,751 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-12 15:51:08,755 INFO L435 NwaCegarLoop]: 912 mSDtfsCounter, 2 mSDsluCounter, 1464 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2376 SdHoareTripleChecker+Invalid, 1280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-12 15:51:08,755 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2376 Invalid, 1280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1279 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-12 15:51:08,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2024-11-12 15:51:08,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 1083. [2024-11-12 15:51:08,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 718 states have (on average 1.7743732590529249) internal successors, (1274), 1076 states have internal predecessors, (1274), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-12 15:51:08,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1292 transitions. [2024-11-12 15:51:08,767 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1292 transitions. Word has length 66 [2024-11-12 15:51:08,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 15:51:08,768 INFO L471 AbstractCegarLoop]: Abstraction has 1083 states and 1292 transitions. [2024-11-12 15:51:08,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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) [2024-11-12 15:51:08,768 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1292 transitions. [2024-11-12 15:51:08,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-12 15:51:08,769 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 15:51:08,769 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 15:51:08,781 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2024-11-12 15:51:08,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-12 15:51:08,970 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-12 15:51:08,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 15:51:08,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1654454368, now seen corresponding path program 1 times [2024-11-12 15:51:08,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-12 15:51:08,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1409115901] [2024-11-12 15:51:08,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 15:51:08,971 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 [2024-11-12 15:51:08,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-12 15:51:08,974 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-12 15:51:08,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-11-12 15:51:09,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 15:51:09,185 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-12 15:51:09,187 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 15:51:09,199 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 [2024-11-12 15:51:09,212 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 [2024-11-12 15:51:09,215 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 [2024-11-12 15:51:09,243 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 [2024-11-12 15:51:09,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 15:51:09,255 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 15:51:09,255 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-12 15:51:09,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1409115901] [2024-11-12 15:51:09,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1409115901] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 15:51:09,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 15:51:09,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 15:51:09,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758957703] [2024-11-12 15:51:09,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 15:51:09,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 15:51:09,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-12 15:51:09,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 15:51:09,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 15:51:09,257 INFO L87 Difference]: Start difference. First operand 1083 states and 1292 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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) [2024-11-12 15:51:10,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 15:51:10,999 INFO L93 Difference]: Finished difference Result 1082 states and 1291 transitions. [2024-11-12 15:51:11,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 15:51:11,000 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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 66 [2024-11-12 15:51:11,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 15:51:11,002 INFO L225 Difference]: With dead ends: 1082 [2024-11-12 15:51:11,002 INFO L226 Difference]: Without dead ends: 1082 [2024-11-12 15:51:11,003 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-12 15:51:11,003 INFO L435 NwaCegarLoop]: 912 mSDtfsCounter, 1 mSDsluCounter, 1498 mSDsCounter, 0 mSdLazyCounter, 1242 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2410 SdHoareTripleChecker+Invalid, 1243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-12 15:51:11,003 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2410 Invalid, 1243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1242 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-12 15:51:11,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1082 states. [2024-11-12 15:51:11,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1082 to 1082. [2024-11-12 15:51:11,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1082 states, 717 states have (on average 1.7754532775453278) internal successors, (1273), 1075 states have internal predecessors, (1273), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-12 15:51:11,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1291 transitions. [2024-11-12 15:51:11,012 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1291 transitions. Word has length 66 [2024-11-12 15:51:11,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 15:51:11,012 INFO L471 AbstractCegarLoop]: Abstraction has 1082 states and 1291 transitions. [2024-11-12 15:51:11,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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) [2024-11-12 15:51:11,012 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1291 transitions. [2024-11-12 15:51:11,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-12 15:51:11,013 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 15:51:11,013 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 15:51:11,023 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2024-11-12 15:51:11,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-12 15:51:11,217 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-12 15:51:11,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 15:51:11,218 INFO L85 PathProgramCache]: Analyzing trace with hash -663808730, now seen corresponding path program 1 times [2024-11-12 15:51:11,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-12 15:51:11,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [685002003] [2024-11-12 15:51:11,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 15:51:11,218 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 [2024-11-12 15:51:11,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-12 15:51:11,221 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-12 15:51:11,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-11-12 15:51:11,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 15:51:11,420 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-12 15:51:11,422 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 15:51:11,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 15:51:11,448 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 15:51:11,448 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-12 15:51:11,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [685002003] [2024-11-12 15:51:11,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [685002003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 15:51:11,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 15:51:11,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 15:51:11,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752143694] [2024-11-12 15:51:11,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 15:51:11,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 15:51:11,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-12 15:51:11,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 15:51:11,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 15:51:11,450 INFO L87 Difference]: Start difference. First operand 1082 states and 1291 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2024-11-12 15:51:11,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 15:51:11,498 INFO L93 Difference]: Finished difference Result 1085 states and 1295 transitions. [2024-11-12 15:51:11,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 15:51:11,498 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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 74 [2024-11-12 15:51:11,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 15:51:11,501 INFO L225 Difference]: With dead ends: 1085 [2024-11-12 15:51:11,504 INFO L226 Difference]: Without dead ends: 1085 [2024-11-12 15:51:11,505 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 15:51:11,505 INFO L435 NwaCegarLoop]: 912 mSDtfsCounter, 0 mSDsluCounter, 1819 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2731 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 15:51:11,505 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2731 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 15:51:11,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2024-11-12 15:51:11,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 1085. [2024-11-12 15:51:11,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1085 states, 719 states have (on average 1.7746870653685674) internal successors, (1276), 1078 states have internal predecessors, (1276), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-12 15:51:11,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1085 states to 1085 states and 1295 transitions. [2024-11-12 15:51:11,522 INFO L78 Accepts]: Start accepts. Automaton has 1085 states and 1295 transitions. Word has length 74 [2024-11-12 15:51:11,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 15:51:11,522 INFO L471 AbstractCegarLoop]: Abstraction has 1085 states and 1295 transitions. [2024-11-12 15:51:11,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2024-11-12 15:51:11,523 INFO L276 IsEmpty]: Start isEmpty. Operand 1085 states and 1295 transitions. [2024-11-12 15:51:11,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-12 15:51:11,523 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 15:51:11,523 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 15:51:11,531 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2024-11-12 15:51:11,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-12 15:51:11,724 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-12 15:51:11,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 15:51:11,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1875666408, now seen corresponding path program 1 times [2024-11-12 15:51:11,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-12 15:51:11,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [442079031] [2024-11-12 15:51:11,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 15:51:11,725 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-12 15:51:11,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-12 15:51:11,727 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-12 15:51:11,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-11-12 15:51:11,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 15:51:11,952 INFO L256 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 15:51:11,953 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 15:51:11,980 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 15:51:11,980 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 15:51:12,053 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 15:51:12,057 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-12 15:51:12,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [442079031] [2024-11-12 15:51:12,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [442079031] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 15:51:12,057 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-12 15:51:12,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-12 15:51:12,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619253716] [2024-11-12 15:51:12,057 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-12 15:51:12,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-12 15:51:12,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-12 15:51:12,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 15:51:12,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-12 15:51:12,058 INFO L87 Difference]: Start difference. First operand 1085 states and 1295 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 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) [2024-11-12 15:51:12,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 15:51:12,171 INFO L93 Difference]: Finished difference Result 1097 states and 1312 transitions. [2024-11-12 15:51:12,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-12 15:51:12,171 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 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 75 [2024-11-12 15:51:12,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 15:51:12,174 INFO L225 Difference]: With dead ends: 1097 [2024-11-12 15:51:12,174 INFO L226 Difference]: Without dead ends: 1097 [2024-11-12 15:51:12,174 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-12 15:51:12,175 INFO L435 NwaCegarLoop]: 912 mSDtfsCounter, 5 mSDsluCounter, 5447 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 6359 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 15:51:12,175 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 6359 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 15:51:12,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2024-11-12 15:51:12,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 1095. [2024-11-12 15:51:12,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1095 states, 728 states have (on average 1.7733516483516483) internal successors, (1291), 1087 states have internal predecessors, (1291), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-12 15:51:12,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1095 states to 1095 states and 1310 transitions. [2024-11-12 15:51:12,185 INFO L78 Accepts]: Start accepts. Automaton has 1095 states and 1310 transitions. Word has length 75 [2024-11-12 15:51:12,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 15:51:12,185 INFO L471 AbstractCegarLoop]: Abstraction has 1095 states and 1310 transitions. [2024-11-12 15:51:12,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 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) [2024-11-12 15:51:12,186 INFO L276 IsEmpty]: Start isEmpty. Operand 1095 states and 1310 transitions. [2024-11-12 15:51:12,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-12 15:51:12,186 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 15:51:12,186 INFO L218 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 15:51:12,195 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2024-11-12 15:51:12,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-12 15:51:12,387 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-12 15:51:12,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 15:51:12,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1839084966, now seen corresponding path program 2 times [2024-11-12 15:51:12,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-12 15:51:12,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1400622679] [2024-11-12 15:51:12,388 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 15:51:12,388 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 [2024-11-12 15:51:12,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-12 15:51:12,390 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-12 15:51:12,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-11-12 15:51:12,785 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-12 15:51:12,785 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 15:51:12,794 INFO L256 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-12 15:51:12,796 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 15:51:12,829 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 15:51:12,829 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 15:51:12,938 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 15:51:12,939 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-12 15:51:12,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1400622679] [2024-11-12 15:51:12,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1400622679] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 15:51:12,939 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-12 15:51:12,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-12 15:51:12,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974520926] [2024-11-12 15:51:12,941 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-12 15:51:12,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-12 15:51:12,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-12 15:51:12,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-12 15:51:12,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-12 15:51:12,942 INFO L87 Difference]: Start difference. First operand 1095 states and 1310 transitions. Second operand has 14 states, 14 states have (on average 5.928571428571429) internal successors, (83), 14 states have internal predecessors, (83), 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) [2024-11-12 15:51:13,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 15:51:13,231 INFO L93 Difference]: Finished difference Result 1110 states and 1332 transitions. [2024-11-12 15:51:13,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-12 15:51:13,231 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.928571428571429) internal successors, (83), 14 states have internal predecessors, (83), 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 78 [2024-11-12 15:51:13,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 15:51:13,234 INFO L225 Difference]: With dead ends: 1110 [2024-11-12 15:51:13,234 INFO L226 Difference]: Without dead ends: 1106 [2024-11-12 15:51:13,234 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2024-11-12 15:51:13,234 INFO L435 NwaCegarLoop]: 912 mSDtfsCounter, 10 mSDsluCounter, 4548 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 5460 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 15:51:13,235 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 5460 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 15:51:13,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2024-11-12 15:51:13,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 1104. [2024-11-12 15:51:13,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1104 states, 737 states have (on average 1.7679782903663501) internal successors, (1303), 1096 states have internal predecessors, (1303), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-12 15:51:13,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1104 states to 1104 states and 1322 transitions. [2024-11-12 15:51:13,247 INFO L78 Accepts]: Start accepts. Automaton has 1104 states and 1322 transitions. Word has length 78 [2024-11-12 15:51:13,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 15:51:13,247 INFO L471 AbstractCegarLoop]: Abstraction has 1104 states and 1322 transitions. [2024-11-12 15:51:13,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.928571428571429) internal successors, (83), 14 states have internal predecessors, (83), 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) [2024-11-12 15:51:13,248 INFO L276 IsEmpty]: Start isEmpty. Operand 1104 states and 1322 transitions. [2024-11-12 15:51:13,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-12 15:51:13,248 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 15:51:13,248 INFO L218 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 15:51:13,256 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2024-11-12 15:51:13,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-12 15:51:13,451 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-12 15:51:13,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 15:51:13,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1166610842, now seen corresponding path program 3 times [2024-11-12 15:51:13,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-12 15:51:13,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1416190782] [2024-11-12 15:51:13,452 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-12 15:51:13,452 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 [2024-11-12 15:51:13,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-12 15:51:13,454 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-12 15:51:13,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-11-12 15:51:14,008 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-12 15:51:14,008 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 15:51:14,021 INFO L256 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-12 15:51:14,023 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 15:51:14,130 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 15:51:14,130 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 15:51:14,575 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 15:51:14,575 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-12 15:51:14,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1416190782] [2024-11-12 15:51:14,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1416190782] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 15:51:14,575 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-12 15:51:14,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-11-12 15:51:14,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093402299] [2024-11-12 15:51:14,576 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-12 15:51:14,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-12 15:51:14,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-12 15:51:14,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-12 15:51:14,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-11-12 15:51:14,577 INFO L87 Difference]: Start difference. First operand 1104 states and 1322 transitions. Second operand has 26 states, 26 states have (on average 3.6538461538461537) internal successors, (95), 26 states have internal predecessors, (95), 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) [2024-11-12 15:51:15,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 15:51:15,770 INFO L93 Difference]: Finished difference Result 1128 states and 1361 transitions. [2024-11-12 15:51:15,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-12 15:51:15,771 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.6538461538461537) internal successors, (95), 26 states have internal predecessors, (95), 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 84 [2024-11-12 15:51:15,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 15:51:15,773 INFO L225 Difference]: With dead ends: 1128 [2024-11-12 15:51:15,773 INFO L226 Difference]: Without dead ends: 1122 [2024-11-12 15:51:15,774 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2024-11-12 15:51:15,774 INFO L435 NwaCegarLoop]: 913 mSDtfsCounter, 22 mSDsluCounter, 10918 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 11831 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-12 15:51:15,774 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 11831 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-12 15:51:15,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1122 states. [2024-11-12 15:51:15,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 1122. [2024-11-12 15:51:15,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1122 states, 755 states have (on average 1.7562913907284767) internal successors, (1326), 1114 states have internal predecessors, (1326), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-12 15:51:15,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 1345 transitions. [2024-11-12 15:51:15,784 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 1345 transitions. Word has length 84 [2024-11-12 15:51:15,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 15:51:15,784 INFO L471 AbstractCegarLoop]: Abstraction has 1122 states and 1345 transitions. [2024-11-12 15:51:15,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.6538461538461537) internal successors, (95), 26 states have internal predecessors, (95), 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) [2024-11-12 15:51:15,784 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 1345 transitions. [2024-11-12 15:51:15,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-12 15:51:15,785 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 15:51:15,785 INFO L218 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 15:51:15,793 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2024-11-12 15:51:15,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-12 15:51:15,989 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-12 15:51:15,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 15:51:15,990 INFO L85 PathProgramCache]: Analyzing trace with hash 73117670, now seen corresponding path program 4 times [2024-11-12 15:51:15,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-12 15:51:15,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [747067064] [2024-11-12 15:51:15,990 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-12 15:51:15,991 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 [2024-11-12 15:51:15,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-12 15:51:15,993 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-12 15:51:15,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-11-12 15:51:16,403 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-12 15:51:16,404 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 15:51:16,416 INFO L256 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-12 15:51:16,418 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 15:51:16,697 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 15:51:16,698 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 15:51:17,698 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 15:51:17,698 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-12 15:51:17,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [747067064] [2024-11-12 15:51:17,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [747067064] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 15:51:17,698 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-12 15:51:17,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2024-11-12 15:51:17,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866697858] [2024-11-12 15:51:17,699 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-12 15:51:17,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-11-12 15:51:17,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-12 15:51:17,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-11-12 15:51:17,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2024-11-12 15:51:17,702 INFO L87 Difference]: Start difference. First operand 1122 states and 1345 transitions. Second operand has 50 states, 50 states have (on average 2.38) internal successors, (119), 50 states have internal predecessors, (119), 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) [2024-11-12 15:51:21,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 15:51:21,832 INFO L93 Difference]: Finished difference Result 1162 states and 1417 transitions. [2024-11-12 15:51:21,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-11-12 15:51:21,833 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 2.38) internal successors, (119), 50 states have internal predecessors, (119), 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 96 [2024-11-12 15:51:21,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 15:51:21,835 INFO L225 Difference]: With dead ends: 1162 [2024-11-12 15:51:21,835 INFO L226 Difference]: Without dead ends: 1158 [2024-11-12 15:51:21,837 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=2713, Invalid=5843, Unknown=0, NotChecked=0, Total=8556 [2024-11-12 15:51:21,837 INFO L435 NwaCegarLoop]: 912 mSDtfsCounter, 33 mSDsluCounter, 20911 mSDsCounter, 0 mSdLazyCounter, 1947 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 21823 SdHoareTripleChecker+Invalid, 1985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-12 15:51:21,837 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 21823 Invalid, 1985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1947 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-12 15:51:21,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2024-11-12 15:51:21,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1156. [2024-11-12 15:51:21,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1156 states, 789 states have (on average 1.7389100126742711) internal successors, (1372), 1148 states have internal predecessors, (1372), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-12 15:51:21,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1156 states to 1156 states and 1391 transitions. [2024-11-12 15:51:21,847 INFO L78 Accepts]: Start accepts. Automaton has 1156 states and 1391 transitions. Word has length 96 [2024-11-12 15:51:21,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 15:51:21,847 INFO L471 AbstractCegarLoop]: Abstraction has 1156 states and 1391 transitions. [2024-11-12 15:51:21,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.38) internal successors, (119), 50 states have internal predecessors, (119), 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) [2024-11-12 15:51:21,847 INFO L276 IsEmpty]: Start isEmpty. Operand 1156 states and 1391 transitions. [2024-11-12 15:51:21,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-12 15:51:21,848 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 15:51:21,848 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 15:51:21,860 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2024-11-12 15:51:22,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-12 15:51:22,049 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-12 15:51:22,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 15:51:22,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1297368410, now seen corresponding path program 5 times [2024-11-12 15:51:22,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-12 15:51:22,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [569384308] [2024-11-12 15:51:22,050 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-12 15:51:22,050 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 [2024-11-12 15:51:22,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-12 15:51:22,052 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-12 15:51:22,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2024-11-12 15:51:23,051 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2024-11-12 15:51:23,051 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 15:51:23,075 INFO L256 TraceCheckSpWp]: Trace formula consists of 816 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-11-12 15:51:23,081 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 15:51:23,085 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 [2024-11-12 15:51:23,170 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-12 15:51:23,170 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2024-11-12 15:51:23,207 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 [2024-11-12 15:51:23,268 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2024-11-12 15:51:23,893 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-12 15:51:23,893 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-12 15:51:23,923 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-12 15:51:23,942 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-12 15:51:23,942 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 15:51:24,197 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1959 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_1959) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))) is different from false [2024-11-12 15:51:24,198 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-12 15:51:24,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [569384308] [2024-11-12 15:51:24,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [569384308] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 15:51:24,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [482402509] [2024-11-12 15:51:24,199 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-12 15:51:24,199 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-12 15:51:24,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-12 15:51:24,201 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-12 15:51:24,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process