./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d619c50f205026415119876db06c9bf079f51316bee7c051af8e3a06a37e393d --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 17:07:20,831 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 17:07:20,895 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-20 17:07:20,899 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 17:07:20,900 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 17:07:20,932 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 17:07:20,932 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 17:07:20,933 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 17:07:20,933 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 17:07:20,933 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 17:07:20,934 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 17:07:20,935 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 17:07:20,936 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 17:07:20,937 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 17:07:20,937 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 17:07:20,938 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 17:07:20,938 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 17:07:20,938 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 17:07:20,939 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 17:07:20,939 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 17:07:20,939 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-20 17:07:20,940 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-20 17:07:20,940 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-20 17:07:20,940 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 17:07:20,941 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-20 17:07:20,941 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 17:07:20,941 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 17:07:20,942 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 17:07:20,942 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 17:07:20,942 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 17:07:20,943 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 17:07:20,943 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 17:07:20,943 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 17:07:20,944 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:07:20,944 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 17:07:20,944 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 17:07:20,953 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 17:07:20,953 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 17:07:20,953 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 17:07:20,954 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 17:07:20,954 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 17:07:20,954 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 17:07:20,955 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d619c50f205026415119876db06c9bf079f51316bee7c051af8e3a06a37e393d [2024-11-20 17:07:21,219 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 17:07:21,241 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 17:07:21,245 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 17:07:21,247 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 17:07:21,247 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 17:07:21,248 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-2.i [2024-11-20 17:07:22,705 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 17:07:23,061 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 17:07:23,061 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-2.i [2024-11-20 17:07:23,087 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d8fbcf0b/79b2b73f44044aee8e3e713b246da53f/FLAG701919222 [2024-11-20 17:07:23,101 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d8fbcf0b/79b2b73f44044aee8e3e713b246da53f [2024-11-20 17:07:23,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 17:07:23,104 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 17:07:23,106 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 17:07:23,106 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 17:07:23,110 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 17:07:23,111 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:07:23" (1/1) ... [2024-11-20 17:07:23,112 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25b6c326 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:07:23, skipping insertion in model container [2024-11-20 17:07:23,112 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:07:23" (1/1) ... [2024-11-20 17:07:23,176 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 17:07:23,639 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:07:23,684 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:07:23,691 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:07:23,697 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:07:23,705 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:07:23,768 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:07:23,769 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:07:23,771 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:07:23,774 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:07:23,776 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:07:23,782 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:07:23,787 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:07:23,788 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:07:23,789 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:07:23,795 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:07:23,807 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:07:23,821 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) [2024-11-20 17:07:23,822 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@47ceef4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:07:23, skipping insertion in model container [2024-11-20 17:07:23,823 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 17:07:23,823 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-20 17:07:23,825 INFO L158 Benchmark]: Toolchain (without parser) took 719.41ms. Allocated memory is still 167.8MB. Free memory was 110.9MB in the beginning and 130.2MB in the end (delta: -19.2MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. [2024-11-20 17:07:23,826 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 123.7MB. Free memory was 93.8MB in the beginning and 93.7MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 17:07:23,827 INFO L158 Benchmark]: CACSL2BoogieTranslator took 717.05ms. Allocated memory is still 167.8MB. Free memory was 110.9MB in the beginning and 130.2MB in the end (delta: -19.3MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. [2024-11-20 17:07:23,828 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 123.7MB. Free memory was 93.8MB in the beginning and 93.7MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 717.05ms. Allocated memory is still 167.8MB. Free memory was 110.9MB in the beginning and 130.2MB in the end (delta: -19.3MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 833]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d619c50f205026415119876db06c9bf079f51316bee7c051af8e3a06a37e393d --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 17:07:25,895 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 17:07:25,981 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-20 17:07:25,988 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 17:07:25,989 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 17:07:26,028 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 17:07:26,028 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 17:07:26,029 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 17:07:26,029 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 17:07:26,030 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 17:07:26,030 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 17:07:26,031 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 17:07:26,031 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 17:07:26,031 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 17:07:26,032 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 17:07:26,032 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 17:07:26,033 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 17:07:26,033 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 17:07:26,035 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 17:07:26,036 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 17:07:26,036 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-20 17:07:26,037 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-20 17:07:26,037 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-20 17:07:26,037 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 17:07:26,038 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-20 17:07:26,038 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-20 17:07:26,038 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 17:07:26,039 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-20 17:07:26,039 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 17:07:26,039 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 17:07:26,040 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 17:07:26,040 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 17:07:26,040 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 17:07:26,041 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 17:07:26,041 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 17:07:26,041 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:07:26,042 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 17:07:26,042 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 17:07:26,042 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-20 17:07:26,043 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-20 17:07:26,043 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 17:07:26,046 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 17:07:26,046 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 17:07:26,047 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 17:07:26,047 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d619c50f205026415119876db06c9bf079f51316bee7c051af8e3a06a37e393d [2024-11-20 17:07:26,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 17:07:26,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 17:07:26,417 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 17:07:26,419 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 17:07:26,419 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 17:07:26,421 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-2.i [2024-11-20 17:07:27,952 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 17:07:28,320 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 17:07:28,321 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-2.i [2024-11-20 17:07:28,345 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0827b8ee/c2952bca88e1459898be5d6a347a2d60/FLAG35db1c799 [2024-11-20 17:07:28,363 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0827b8ee/c2952bca88e1459898be5d6a347a2d60 [2024-11-20 17:07:28,366 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 17:07:28,367 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 17:07:28,369 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 17:07:28,369 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 17:07:28,374 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 17:07:28,375 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:07:28" (1/1) ... [2024-11-20 17:07:28,376 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25340045 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:07:28, skipping insertion in model container [2024-11-20 17:07:28,378 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:07:28" (1/1) ... [2024-11-20 17:07:28,440 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 17:07:28,887 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:07:28,941 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:07:28,948 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:07:28,956 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:07:28,962 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:07:29,005 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:07:29,005 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:07:29,013 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:07:29,016 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:07:29,018 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:07:29,023 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:07:29,025 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:07:29,030 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:07:29,031 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:07:29,036 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:07:29,044 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:07:29,063 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-20 17:07:29,078 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 17:07:29,107 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:07:29,127 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:07:29,133 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:07:29,141 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:07:29,146 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:07:29,169 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:07:29,169 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:07:29,187 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:07:29,187 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:07:29,189 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:07:29,190 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:07:29,195 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:07:29,196 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:07:29,196 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:07:29,203 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:07:29,210 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:07:29,218 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 17:07:29,306 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:07:29,371 INFO L204 MainTranslator]: Completed translation [2024-11-20 17:07:29,372 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:07:29 WrapperNode [2024-11-20 17:07:29,372 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 17:07:29,373 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 17:07:29,373 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 17:07:29,374 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 17:07:29,380 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:07:29" (1/1) ... [2024-11-20 17:07:29,428 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:07:29" (1/1) ... [2024-11-20 17:07:29,507 INFO L138 Inliner]: procedures = 211, calls = 280, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1082 [2024-11-20 17:07:29,508 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 17:07:29,508 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 17:07:29,508 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 17:07:29,509 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 17:07:29,519 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:07:29" (1/1) ... [2024-11-20 17:07:29,520 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:07:29" (1/1) ... [2024-11-20 17:07:29,536 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:07:29" (1/1) ... [2024-11-20 17:07:29,622 INFO L175 MemorySlicer]: Split 256 memory accesses to 3 slices as follows [220, 2, 34]. 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 [50, 0, 4]. [2024-11-20 17:07:29,623 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:07:29" (1/1) ... [2024-11-20 17:07:29,623 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:07:29" (1/1) ... [2024-11-20 17:07:29,675 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:07:29" (1/1) ... [2024-11-20 17:07:29,682 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:07:29" (1/1) ... [2024-11-20 17:07:29,687 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:07:29" (1/1) ... [2024-11-20 17:07:29,693 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:07:29" (1/1) ... [2024-11-20 17:07:29,702 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 17:07:29,707 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 17:07:29,707 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 17:07:29,707 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 17:07:29,708 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:07:29" (1/1) ... [2024-11-20 17:07:29,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:07:29,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:07:29,749 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) [2024-11-20 17:07:29,753 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 [2024-11-20 17:07:29,800 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-20 17:07:29,800 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-20 17:07:29,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-20 17:07:29,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-20 17:07:29,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-20 17:07:29,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-20 17:07:29,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-20 17:07:29,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-20 17:07:29,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-20 17:07:29,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-20 17:07:29,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-20 17:07:29,802 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-20 17:07:29,803 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-20 17:07:29,803 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-20 17:07:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-20 17:07:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-20 17:07:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-20 17:07:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-20 17:07:29,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-20 17:07:29,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-20 17:07:29,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-20 17:07:29,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-20 17:07:29,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-20 17:07:29,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-20 17:07:29,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-20 17:07:29,806 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-20 17:07:29,806 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-20 17:07:29,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 17:07:29,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 17:07:29,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-20 17:07:29,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-20 17:07:29,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-20 17:07:29,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 17:07:29,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 17:07:30,037 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 17:07:30,039 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 17:07:30,060 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-20 17:07:30,100 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-20 17:07:30,122 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-20 17:07:33,819 INFO L? ?]: Removed 1101 outVars from TransFormulas that were not future-live. [2024-11-20 17:07:33,819 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 17:07:33,859 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 17:07:33,859 INFO L316 CfgBuilder]: Removed 63 assume(true) statements. [2024-11-20 17:07:33,860 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:07:33 BoogieIcfgContainer [2024-11-20 17:07:33,860 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 17:07:33,862 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 17:07:33,862 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 17:07:33,865 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 17:07:33,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:07:28" (1/3) ... [2024-11-20 17:07:33,867 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34668ce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:07:33, skipping insertion in model container [2024-11-20 17:07:33,867 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:07:29" (2/3) ... [2024-11-20 17:07:33,867 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34668ce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:07:33, skipping insertion in model container [2024-11-20 17:07:33,867 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:07:33" (3/3) ... [2024-11-20 17:07:33,868 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test2-2.i [2024-11-20 17:07:33,888 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 17:07:33,888 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 529 error locations. [2024-11-20 17:07:33,955 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 17:07:33,961 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;@4bd8a557, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 17:07:33,961 INFO L334 AbstractCegarLoop]: Starting to check reachability of 529 error locations. [2024-11-20 17:07:33,968 INFO L276 IsEmpty]: Start isEmpty. Operand has 1083 states, 543 states have (on average 2.2099447513812156) internal successors, (1200), 1076 states have internal predecessors, (1200), 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) [2024-11-20 17:07:33,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-20 17:07:33,973 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:07:33,973 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-20 17:07:33,974 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-20 17:07:33,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:07:33,977 INFO L85 PathProgramCache]: Analyzing trace with hash 65605, now seen corresponding path program 1 times [2024-11-20 17:07:33,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:07:33,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [432008298] [2024-11-20 17:07:33,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:07:33,987 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 17:07:33,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:07:33,991 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) [2024-11-20 17:07:33,993 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 [2024-11-20 17:07:34,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:07:34,174 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 17:07:34,181 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:07:34,222 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 [2024-11-20 17:07:34,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:07:34,236 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:07:34,237 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:07:34,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [432008298] [2024-11-20 17:07:34,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [432008298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:07:34,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:07:34,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 17:07:34,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365969608] [2024-11-20 17:07:34,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:07:34,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:07:34,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:07:34,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:07:34,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:07:34,312 INFO L87 Difference]: Start difference. First operand has 1083 states, 543 states have (on average 2.2099447513812156) internal successors, (1200), 1076 states have internal predecessors, (1200), 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) [2024-11-20 17:07:35,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:07:35,805 INFO L93 Difference]: Finished difference Result 1248 states and 1325 transitions. [2024-11-20 17:07:35,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:07:35,807 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 [2024-11-20 17:07:35,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:07:35,826 INFO L225 Difference]: With dead ends: 1248 [2024-11-20 17:07:35,826 INFO L226 Difference]: Without dead ends: 1246 [2024-11-20 17:07:35,827 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:07:35,830 INFO L432 NwaCegarLoop]: 660 mSDtfsCounter, 983 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 816 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-20 17:07:35,831 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [991 Valid, 816 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-20 17:07:35,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1246 states. [2024-11-20 17:07:35,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1246 to 1067. [2024-11-20 17:07:35,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1067 states, 545 states have (on average 2.0495412844036696) internal successors, (1117), 1060 states have internal predecessors, (1117), 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) [2024-11-20 17:07:35,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1067 states to 1067 states and 1135 transitions. [2024-11-20 17:07:35,913 INFO L78 Accepts]: Start accepts. Automaton has 1067 states and 1135 transitions. Word has length 3 [2024-11-20 17:07:35,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:07:35,913 INFO L471 AbstractCegarLoop]: Abstraction has 1067 states and 1135 transitions. [2024-11-20 17:07:35,913 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) [2024-11-20 17:07:35,913 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states and 1135 transitions. [2024-11-20 17:07:35,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-20 17:07:35,914 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:07:35,914 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-20 17:07:35,919 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 (2)] Forceful destruction successful, exit code 0 [2024-11-20 17:07:36,115 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 [2024-11-20 17:07:36,115 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-20 17:07:36,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:07:36,116 INFO L85 PathProgramCache]: Analyzing trace with hash 65606, now seen corresponding path program 1 times [2024-11-20 17:07:36,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:07:36,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [449390907] [2024-11-20 17:07:36,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:07:36,117 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 [2024-11-20 17:07:36,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:07:36,119 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) [2024-11-20 17:07:36,121 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 [2024-11-20 17:07:36,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:07:36,257 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 17:07:36,259 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:07:36,273 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 [2024-11-20 17:07:36,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:07:36,285 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:07:36,285 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:07:36,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [449390907] [2024-11-20 17:07:36,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [449390907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:07:36,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:07:36,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 17:07:36,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312827678] [2024-11-20 17:07:36,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:07:36,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:07:36,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:07:36,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:07:36,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:07:36,288 INFO L87 Difference]: Start difference. First operand 1067 states and 1135 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) [2024-11-20 17:07:38,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:07:38,190 INFO L93 Difference]: Finished difference Result 1494 states and 1605 transitions. [2024-11-20 17:07:38,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:07:38,191 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 [2024-11-20 17:07:38,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:07:38,195 INFO L225 Difference]: With dead ends: 1494 [2024-11-20 17:07:38,195 INFO L226 Difference]: Without dead ends: 1494 [2024-11-20 17:07:38,196 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:07:38,197 INFO L432 NwaCegarLoop]: 933 mSDtfsCounter, 459 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-20 17:07:38,197 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [464 Valid, 1535 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-20 17:07:38,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1494 states. [2024-11-20 17:07:38,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1494 to 1205. [2024-11-20 17:07:38,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1205 states, 679 states have (on average 2.007363770250368) internal successors, (1363), 1198 states have internal predecessors, (1363), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-20 17:07:38,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1205 states to 1205 states and 1391 transitions. [2024-11-20 17:07:38,222 INFO L78 Accepts]: Start accepts. Automaton has 1205 states and 1391 transitions. Word has length 3 [2024-11-20 17:07:38,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:07:38,222 INFO L471 AbstractCegarLoop]: Abstraction has 1205 states and 1391 transitions. [2024-11-20 17:07:38,222 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) [2024-11-20 17:07:38,223 INFO L276 IsEmpty]: Start isEmpty. Operand 1205 states and 1391 transitions. [2024-11-20 17:07:38,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-20 17:07:38,223 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:07:38,223 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:07:38,227 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-20 17:07:38,425 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 [2024-11-20 17:07:38,426 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-20 17:07:38,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:07:38,426 INFO L85 PathProgramCache]: Analyzing trace with hash 458521935, now seen corresponding path program 1 times [2024-11-20 17:07:38,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:07:38,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1598433920] [2024-11-20 17:07:38,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:07:38,427 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 [2024-11-20 17:07:38,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:07:38,428 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) [2024-11-20 17:07:38,429 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 [2024-11-20 17:07:38,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:07:38,572 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-20 17:07:38,574 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:07:38,589 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 [2024-11-20 17:07:38,597 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 [2024-11-20 17:07:38,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 17:07:38,674 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 [2024-11-20 17:07:38,693 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-20 17:07:38,694 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 [2024-11-20 17:07:38,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:07:38,724 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:07:38,724 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:07:38,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1598433920] [2024-11-20 17:07:38,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1598433920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:07:38,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:07:38,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:07:38,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428926430] [2024-11-20 17:07:38,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:07:38,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:07:38,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:07:38,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:07:38,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:07:38,728 INFO L87 Difference]: Start difference. First operand 1205 states and 1391 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) [2024-11-20 17:07:40,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:07:40,840 INFO L93 Difference]: Finished difference Result 1373 states and 1567 transitions. [2024-11-20 17:07:40,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 17:07:40,841 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 [2024-11-20 17:07:40,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:07:40,845 INFO L225 Difference]: With dead ends: 1373 [2024-11-20 17:07:40,845 INFO L226 Difference]: Without dead ends: 1373 [2024-11-20 17:07:40,845 INFO L431 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 [2024-11-20 17:07:40,846 INFO L432 NwaCegarLoop]: 391 mSDtfsCounter, 2241 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2249 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-20 17:07:40,847 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2249 Valid, 480 Invalid, 980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 953 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-20 17:07:40,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1373 states. [2024-11-20 17:07:40,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1373 to 1055. [2024-11-20 17:07:40,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1055 states, 545 states have (on average 2.0256880733944955) internal successors, (1104), 1048 states have internal predecessors, (1104), 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) [2024-11-20 17:07:40,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1055 states to 1055 states and 1122 transitions. [2024-11-20 17:07:40,867 INFO L78 Accepts]: Start accepts. Automaton has 1055 states and 1122 transitions. Word has length 7 [2024-11-20 17:07:40,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:07:40,868 INFO L471 AbstractCegarLoop]: Abstraction has 1055 states and 1122 transitions. [2024-11-20 17:07:40,868 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) [2024-11-20 17:07:40,868 INFO L276 IsEmpty]: Start isEmpty. Operand 1055 states and 1122 transitions. [2024-11-20 17:07:40,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-20 17:07:40,868 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:07:40,869 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:07:40,872 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-20 17:07:41,072 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 [2024-11-20 17:07:41,072 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-20 17:07:41,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:07:41,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1329278099, now seen corresponding path program 1 times [2024-11-20 17:07:41,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:07:41,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [147478866] [2024-11-20 17:07:41,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:07:41,074 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 [2024-11-20 17:07:41,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:07:41,076 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) [2024-11-20 17:07:41,076 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 [2024-11-20 17:07:41,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:07:41,180 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 17:07:41,182 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:07:41,188 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 [2024-11-20 17:07:41,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:07:41,217 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:07:41,217 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:07:41,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [147478866] [2024-11-20 17:07:41,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [147478866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:07:41,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:07:41,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 17:07:41,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412754876] [2024-11-20 17:07:41,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:07:41,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:07:41,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:07:41,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:07:41,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:07:41,219 INFO L87 Difference]: Start difference. First operand 1055 states and 1122 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) [2024-11-20 17:07:42,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:07:42,872 INFO L93 Difference]: Finished difference Result 1358 states and 1464 transitions. [2024-11-20 17:07:42,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:07:42,873 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 [2024-11-20 17:07:42,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:07:42,877 INFO L225 Difference]: With dead ends: 1358 [2024-11-20 17:07:42,877 INFO L226 Difference]: Without dead ends: 1358 [2024-11-20 17:07:42,878 INFO L431 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 [2024-11-20 17:07:42,879 INFO L432 NwaCegarLoop]: 1129 mSDtfsCounter, 515 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 711 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 1577 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-20 17:07:42,879 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [520 Valid, 1577 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 711 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-20 17:07:42,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1358 states. [2024-11-20 17:07:42,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1358 to 1082. [2024-11-20 17:07:42,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1082 states, 582 states have (on average 2.013745704467354) internal successors, (1172), 1075 states have internal predecessors, (1172), 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) [2024-11-20 17:07:42,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1190 transitions. [2024-11-20 17:07:42,899 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1190 transitions. Word has length 8 [2024-11-20 17:07:42,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:07:42,899 INFO L471 AbstractCegarLoop]: Abstraction has 1082 states and 1190 transitions. [2024-11-20 17:07:42,900 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) [2024-11-20 17:07:42,900 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1190 transitions. [2024-11-20 17:07:42,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-20 17:07:42,900 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:07:42,900 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:07:42,905 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 [2024-11-20 17:07:43,101 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 [2024-11-20 17:07:43,101 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-20 17:07:43,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:07:43,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1329278098, now seen corresponding path program 1 times [2024-11-20 17:07:43,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:07:43,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [903401969] [2024-11-20 17:07:43,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:07:43,102 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 [2024-11-20 17:07:43,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:07:43,104 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) [2024-11-20 17:07:43,105 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 [2024-11-20 17:07:43,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:07:43,207 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 17:07:43,209 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:07:43,214 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 [2024-11-20 17:07:43,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:07:43,222 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:07:43,222 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:07:43,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [903401969] [2024-11-20 17:07:43,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [903401969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:07:43,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:07:43,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 17:07:43,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970626884] [2024-11-20 17:07:43,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:07:43,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:07:43,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:07:43,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:07:43,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:07:43,223 INFO L87 Difference]: Start difference. First operand 1082 states and 1190 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) [2024-11-20 17:07:44,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:07:44,288 INFO L93 Difference]: Finished difference Result 1262 states and 1398 transitions. [2024-11-20 17:07:44,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:07:44,288 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 [2024-11-20 17:07:44,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:07:44,291 INFO L225 Difference]: With dead ends: 1262 [2024-11-20 17:07:44,292 INFO L226 Difference]: Without dead ends: 1262 [2024-11-20 17:07:44,292 INFO L431 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 [2024-11-20 17:07:44,292 INFO L432 NwaCegarLoop]: 919 mSDtfsCounter, 764 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 653 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 772 SdHoareTripleChecker+Valid, 1198 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-20 17:07:44,293 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [772 Valid, 1198 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 653 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-20 17:07:44,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1262 states. [2024-11-20 17:07:44,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1262 to 1035. [2024-11-20 17:07:44,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1035 states, 582 states have (on average 1.9261168384879725) internal successors, (1121), 1028 states have internal predecessors, (1121), 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) [2024-11-20 17:07:44,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1139 transitions. [2024-11-20 17:07:44,312 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1139 transitions. Word has length 8 [2024-11-20 17:07:44,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:07:44,312 INFO L471 AbstractCegarLoop]: Abstraction has 1035 states and 1139 transitions. [2024-11-20 17:07:44,312 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) [2024-11-20 17:07:44,312 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1139 transitions. [2024-11-20 17:07:44,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-20 17:07:44,313 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:07:44,313 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:07:44,317 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 [2024-11-20 17:07:44,513 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 [2024-11-20 17:07:44,514 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr422REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-20 17:07:44,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:07:44,514 INFO L85 PathProgramCache]: Analyzing trace with hash -285815487, now seen corresponding path program 1 times [2024-11-20 17:07:44,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:07:44,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [975149796] [2024-11-20 17:07:44,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:07:44,515 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 [2024-11-20 17:07:44,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:07:44,517 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) [2024-11-20 17:07:44,518 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 [2024-11-20 17:07:44,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:07:44,638 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 17:07:44,640 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:07:44,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:07:44,697 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:07:44,697 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:07:44,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [975149796] [2024-11-20 17:07:44,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [975149796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:07:44,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:07:44,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:07:44,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074297318] [2024-11-20 17:07:44,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:07:44,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:07:44,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:07:44,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:07:44,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:07:44,698 INFO L87 Difference]: Start difference. First operand 1035 states and 1139 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:07:44,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:07:44,878 INFO L93 Difference]: Finished difference Result 1490 states and 1660 transitions. [2024-11-20 17:07:44,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:07:44,879 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-20 17:07:44,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:07:44,883 INFO L225 Difference]: With dead ends: 1490 [2024-11-20 17:07:44,883 INFO L226 Difference]: Without dead ends: 1490 [2024-11-20 17:07:44,883 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:07:44,884 INFO L432 NwaCegarLoop]: 1125 mSDtfsCounter, 481 mSDsluCounter, 973 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 2098 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 17:07:44,884 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 2098 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 17:07:44,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1490 states. [2024-11-20 17:07:44,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1490 to 1222. [2024-11-20 17:07:44,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1222 states, 764 states have (on average 1.8730366492146597) internal successors, (1431), 1215 states have internal predecessors, (1431), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-20 17:07:44,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 1459 transitions. [2024-11-20 17:07:44,909 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 1459 transitions. Word has length 11 [2024-11-20 17:07:44,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:07:44,910 INFO L471 AbstractCegarLoop]: Abstraction has 1222 states and 1459 transitions. [2024-11-20 17:07:44,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:07:44,911 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 1459 transitions. [2024-11-20 17:07:44,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-20 17:07:44,912 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:07:44,912 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:07:44,917 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 [2024-11-20 17:07:45,113 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 [2024-11-20 17:07:45,114 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr330REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-20 17:07:45,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:07:45,114 INFO L85 PathProgramCache]: Analyzing trace with hash -170511720, now seen corresponding path program 1 times [2024-11-20 17:07:45,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:07:45,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [677769982] [2024-11-20 17:07:45,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:07:45,115 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 [2024-11-20 17:07:45,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:07:45,122 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) [2024-11-20 17:07:45,126 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 [2024-11-20 17:07:45,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:07:45,246 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 17:07:45,247 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:07:45,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:07:45,255 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:07:45,255 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:07:45,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [677769982] [2024-11-20 17:07:45,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [677769982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:07:45,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:07:45,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:07:45,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692214917] [2024-11-20 17:07:45,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:07:45,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:07:45,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:07:45,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:07:45,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:07:45,257 INFO L87 Difference]: Start difference. First operand 1222 states and 1459 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:07:45,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:07:45,290 INFO L93 Difference]: Finished difference Result 1162 states and 1373 transitions. [2024-11-20 17:07:45,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:07:45,291 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-20 17:07:45,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:07:45,294 INFO L225 Difference]: With dead ends: 1162 [2024-11-20 17:07:45,295 INFO L226 Difference]: Without dead ends: 1162 [2024-11-20 17:07:45,295 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:07:45,296 INFO L432 NwaCegarLoop]: 1002 mSDtfsCounter, 71 mSDsluCounter, 939 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 1941 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 [2024-11-20 17:07:45,297 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 1941 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 17:07:45,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162 states. [2024-11-20 17:07:45,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162 to 1162. [2024-11-20 17:07:45,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1162 states, 728 states have (on average 1.8475274725274726) internal successors, (1345), 1155 states have internal predecessors, (1345), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-20 17:07:45,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 1373 transitions. [2024-11-20 17:07:45,318 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 1373 transitions. Word has length 13 [2024-11-20 17:07:45,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:07:45,319 INFO L471 AbstractCegarLoop]: Abstraction has 1162 states and 1373 transitions. [2024-11-20 17:07:45,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:07:45,319 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 1373 transitions. [2024-11-20 17:07:45,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-20 17:07:45,320 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:07:45,320 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:07:45,324 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-11-20 17:07:45,521 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 [2024-11-20 17:07:45,521 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr424REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-20 17:07:45,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:07:45,522 INFO L85 PathProgramCache]: Analyzing trace with hash -2096841630, now seen corresponding path program 1 times [2024-11-20 17:07:45,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:07:45,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1883089578] [2024-11-20 17:07:45,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:07:45,522 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 [2024-11-20 17:07:45,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:07:45,523 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) [2024-11-20 17:07:45,524 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 [2024-11-20 17:07:45,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:07:45,639 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 17:07:45,641 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:07:45,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:07:45,729 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:07:45,729 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:07:45,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1883089578] [2024-11-20 17:07:45,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1883089578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:07:45,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:07:45,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 17:07:45,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960557186] [2024-11-20 17:07:45,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:07:45,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:07:45,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:07:45,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:07:45,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:07:45,730 INFO L87 Difference]: Start difference. First operand 1162 states and 1373 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2024-11-20 17:07:46,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:07:46,122 INFO L93 Difference]: Finished difference Result 1408 states and 1576 transitions. [2024-11-20 17:07:46,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 17:07:46,123 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2024-11-20 17:07:46,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:07:46,126 INFO L225 Difference]: With dead ends: 1408 [2024-11-20 17:07:46,126 INFO L226 Difference]: Without dead ends: 1408 [2024-11-20 17:07:46,126 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 17:07:46,127 INFO L432 NwaCegarLoop]: 1081 mSDtfsCounter, 441 mSDsluCounter, 1905 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 2986 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 17:07:46,127 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [446 Valid, 2986 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 17:07:46,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1408 states. [2024-11-20 17:07:46,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1408 to 1164. [2024-11-20 17:07:46,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1164 states, 730 states have (on average 1.8452054794520547) internal successors, (1347), 1157 states have internal predecessors, (1347), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-20 17:07:46,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1164 states to 1164 states and 1375 transitions. [2024-11-20 17:07:46,145 INFO L78 Accepts]: Start accepts. Automaton has 1164 states and 1375 transitions. Word has length 14 [2024-11-20 17:07:46,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:07:46,146 INFO L471 AbstractCegarLoop]: Abstraction has 1164 states and 1375 transitions. [2024-11-20 17:07:46,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2024-11-20 17:07:46,146 INFO L276 IsEmpty]: Start isEmpty. Operand 1164 states and 1375 transitions. [2024-11-20 17:07:46,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-20 17:07:46,146 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:07:46,147 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:07:46,151 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-11-20 17:07:46,347 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 [2024-11-20 17:07:46,348 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr527ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-20 17:07:46,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:07:46,348 INFO L85 PathProgramCache]: Analyzing trace with hash -2096834720, now seen corresponding path program 1 times [2024-11-20 17:07:46,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:07:46,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1544256701] [2024-11-20 17:07:46,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:07:46,349 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 [2024-11-20 17:07:46,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:07:46,350 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) [2024-11-20 17:07:46,352 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 [2024-11-20 17:07:46,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:07:46,504 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 17:07:46,506 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:07:46,513 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-20 17:07:46,514 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-20 17:07:46,514 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-20 17:07:46,521 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 [2024-11-20 17:07:46,567 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 17:07:46,567 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 [2024-11-20 17:07:46,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:07:46,579 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:07:46,579 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:07:46,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1544256701] [2024-11-20 17:07:46,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1544256701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:07:46,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:07:46,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 17:07:46,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444511120] [2024-11-20 17:07:46,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:07:46,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:07:46,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:07:46,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:07:46,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:07:46,580 INFO L87 Difference]: Start difference. First operand 1164 states and 1375 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2024-11-20 17:07:46,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:07:46,809 INFO L93 Difference]: Finished difference Result 1994 states and 2228 transitions. [2024-11-20 17:07:46,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 17:07:46,810 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2024-11-20 17:07:46,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:07:46,814 INFO L225 Difference]: With dead ends: 1994 [2024-11-20 17:07:46,814 INFO L226 Difference]: Without dead ends: 1994 [2024-11-20 17:07:46,814 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 17:07:46,815 INFO L432 NwaCegarLoop]: 1206 mSDtfsCounter, 934 mSDsluCounter, 2181 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 942 SdHoareTripleChecker+Valid, 3387 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 17:07:46,815 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [942 Valid, 3387 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 17:07:46,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1994 states. [2024-11-20 17:07:46,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1994 to 1163. [2024-11-20 17:07:46,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1163 states, 729 states have (on average 1.8449931412894376) internal successors, (1345), 1156 states have internal predecessors, (1345), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-20 17:07:46,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1163 states to 1163 states and 1373 transitions. [2024-11-20 17:07:46,833 INFO L78 Accepts]: Start accepts. Automaton has 1163 states and 1373 transitions. Word has length 14 [2024-11-20 17:07:46,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:07:46,834 INFO L471 AbstractCegarLoop]: Abstraction has 1163 states and 1373 transitions. [2024-11-20 17:07:46,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2024-11-20 17:07:46,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1163 states and 1373 transitions. [2024-11-20 17:07:46,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-20 17:07:46,834 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:07:46,834 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:07:46,840 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-11-20 17:07:47,035 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 [2024-11-20 17:07:47,036 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-20 17:07:47,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:07:47,036 INFO L85 PathProgramCache]: Analyzing trace with hash 183846334, now seen corresponding path program 1 times [2024-11-20 17:07:47,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:07:47,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1523188476] [2024-11-20 17:07:47,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:07:47,036 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 [2024-11-20 17:07:47,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:07:47,038 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) [2024-11-20 17:07:47,039 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 [2024-11-20 17:07:47,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:07:47,196 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 17:07:47,198 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:07:47,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:07:47,205 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:07:47,205 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:07:47,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1523188476] [2024-11-20 17:07:47,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1523188476] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:07:47,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:07:47,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:07:47,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391403737] [2024-11-20 17:07:47,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:07:47,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:07:47,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:07:47,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:07:47,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:07:47,207 INFO L87 Difference]: Start difference. First operand 1163 states and 1373 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) [2024-11-20 17:07:47,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:07:47,235 INFO L93 Difference]: Finished difference Result 1103 states and 1287 transitions. [2024-11-20 17:07:47,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:07:47,235 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 [2024-11-20 17:07:47,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:07:47,239 INFO L225 Difference]: With dead ends: 1103 [2024-11-20 17:07:47,239 INFO L226 Difference]: Without dead ends: 1103 [2024-11-20 17:07:47,239 INFO L431 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 [2024-11-20 17:07:47,240 INFO L432 NwaCegarLoop]: 959 mSDtfsCounter, 71 mSDsluCounter, 896 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 1855 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 [2024-11-20 17:07:47,240 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 1855 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 17:07:47,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1103 states. [2024-11-20 17:07:47,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1103 to 1103. [2024-11-20 17:07:47,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1103 states, 693 states have (on average 1.8167388167388168) internal successors, (1259), 1096 states have internal predecessors, (1259), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-20 17:07:47,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1103 states to 1103 states and 1287 transitions. [2024-11-20 17:07:47,258 INFO L78 Accepts]: Start accepts. Automaton has 1103 states and 1287 transitions. Word has length 18 [2024-11-20 17:07:47,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:07:47,259 INFO L471 AbstractCegarLoop]: Abstraction has 1103 states and 1287 transitions. [2024-11-20 17:07:47,259 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) [2024-11-20 17:07:47,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1103 states and 1287 transitions. [2024-11-20 17:07:47,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-20 17:07:47,261 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:07:47,261 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:07:47,267 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 [2024-11-20 17:07:47,462 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 [2024-11-20 17:07:47,462 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-20 17:07:47,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:07:47,463 INFO L85 PathProgramCache]: Analyzing trace with hash 582665080, now seen corresponding path program 1 times [2024-11-20 17:07:47,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:07:47,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [412152098] [2024-11-20 17:07:47,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:07:47,463 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 [2024-11-20 17:07:47,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:07:47,466 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) [2024-11-20 17:07:47,467 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 [2024-11-20 17:07:47,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:07:47,634 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 17:07:47,635 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:07:47,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:07:47,660 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:07:47,661 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:07:47,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [412152098] [2024-11-20 17:07:47,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [412152098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:07:47,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:07:47,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 17:07:47,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059996940] [2024-11-20 17:07:47,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:07:47,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:07:47,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:07:47,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:07:47,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:07:47,663 INFO L87 Difference]: Start difference. First operand 1103 states and 1287 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) [2024-11-20 17:07:47,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:07:47,730 INFO L93 Difference]: Finished difference Result 1073 states and 1229 transitions. [2024-11-20 17:07:47,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 17:07:47,730 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 [2024-11-20 17:07:47,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:07:47,734 INFO L225 Difference]: With dead ends: 1073 [2024-11-20 17:07:47,734 INFO L226 Difference]: Without dead ends: 1073 [2024-11-20 17:07:47,734 INFO L431 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 [2024-11-20 17:07:47,734 INFO L432 NwaCegarLoop]: 914 mSDtfsCounter, 48 mSDsluCounter, 1802 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 2716 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 [2024-11-20 17:07:47,735 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 2716 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 17:07:47,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2024-11-20 17:07:47,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 1073. [2024-11-20 17:07:47,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1073 states, 677 states have (on average 1.7740029542097489) internal successors, (1201), 1066 states have internal predecessors, (1201), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-20 17:07:47,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1073 states to 1073 states and 1229 transitions. [2024-11-20 17:07:47,751 INFO L78 Accepts]: Start accepts. Automaton has 1073 states and 1229 transitions. Word has length 20 [2024-11-20 17:07:47,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:07:47,751 INFO L471 AbstractCegarLoop]: Abstraction has 1073 states and 1229 transitions. [2024-11-20 17:07:47,751 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) [2024-11-20 17:07:47,752 INFO L276 IsEmpty]: Start isEmpty. Operand 1073 states and 1229 transitions. [2024-11-20 17:07:47,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-20 17:07:47,753 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:07:47,753 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:07:47,760 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 [2024-11-20 17:07:47,954 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 [2024-11-20 17:07:47,954 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-20 17:07:47,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:07:47,956 INFO L85 PathProgramCache]: Analyzing trace with hash -195006074, now seen corresponding path program 1 times [2024-11-20 17:07:47,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:07:47,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1796987773] [2024-11-20 17:07:47,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:07:47,956 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 [2024-11-20 17:07:47,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:07:47,959 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) [2024-11-20 17:07:47,961 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 [2024-11-20 17:07:48,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:07:48,140 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 17:07:48,142 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:07:48,149 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 [2024-11-20 17:07:48,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:07:48,251 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:07:48,251 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:07:48,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1796987773] [2024-11-20 17:07:48,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1796987773] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:07:48,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:07:48,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:07:48,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942395105] [2024-11-20 17:07:48,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:07:48,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:07:48,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:07:48,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:07:48,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:07:48,254 INFO L87 Difference]: Start difference. First operand 1073 states and 1229 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) [2024-11-20 17:07:49,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:07:49,434 INFO L93 Difference]: Finished difference Result 1077 states and 1229 transitions. [2024-11-20 17:07:49,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 17:07:49,435 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 [2024-11-20 17:07:49,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:07:49,438 INFO L225 Difference]: With dead ends: 1077 [2024-11-20 17:07:49,438 INFO L226 Difference]: Without dead ends: 1077 [2024-11-20 17:07:49,438 INFO L431 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 [2024-11-20 17:07:49,439 INFO L432 NwaCegarLoop]: 600 mSDtfsCounter, 654 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 662 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-20 17:07:49,439 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [662 Valid, 1154 Invalid, 966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 959 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-20 17:07:49,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2024-11-20 17:07:49,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 1069. [2024-11-20 17:07:49,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1069 states, 677 states have (on average 1.7621861152141802) internal successors, (1193), 1062 states have internal predecessors, (1193), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-20 17:07:49,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1069 states to 1069 states and 1221 transitions. [2024-11-20 17:07:49,453 INFO L78 Accepts]: Start accepts. Automaton has 1069 states and 1221 transitions. Word has length 34 [2024-11-20 17:07:49,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:07:49,454 INFO L471 AbstractCegarLoop]: Abstraction has 1069 states and 1221 transitions. [2024-11-20 17:07:49,454 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) [2024-11-20 17:07:49,454 INFO L276 IsEmpty]: Start isEmpty. Operand 1069 states and 1221 transitions. [2024-11-20 17:07:49,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-20 17:07:49,456 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:07:49,456 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:07:49,463 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 (13)] Forceful destruction successful, exit code 0 [2024-11-20 17:07:49,657 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 [2024-11-20 17:07:49,657 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-20 17:07:49,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:07:49,658 INFO L85 PathProgramCache]: Analyzing trace with hash -195006073, now seen corresponding path program 1 times [2024-11-20 17:07:49,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:07:49,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [705534003] [2024-11-20 17:07:49,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:07:49,659 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 [2024-11-20 17:07:49,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:07:49,662 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) [2024-11-20 17:07:49,663 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 [2024-11-20 17:07:49,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:07:49,838 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-20 17:07:49,842 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:07:49,853 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 [2024-11-20 17:07:50,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:07:50,027 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:07:50,028 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:07:50,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [705534003] [2024-11-20 17:07:50,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [705534003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:07:50,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:07:50,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:07:50,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694738025] [2024-11-20 17:07:50,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:07:50,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:07:50,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:07:50,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:07:50,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:07:50,032 INFO L87 Difference]: Start difference. First operand 1069 states and 1221 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) [2024-11-20 17:07:51,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:07:51,908 INFO L93 Difference]: Finished difference Result 1388 states and 1582 transitions. [2024-11-20 17:07:51,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 17:07:51,909 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 [2024-11-20 17:07:51,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:07:51,913 INFO L225 Difference]: With dead ends: 1388 [2024-11-20 17:07:51,913 INFO L226 Difference]: Without dead ends: 1388 [2024-11-20 17:07:51,913 INFO L431 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 [2024-11-20 17:07:51,914 INFO L432 NwaCegarLoop]: 1079 mSDtfsCounter, 401 mSDsluCounter, 1078 mSDsCounter, 0 mSdLazyCounter, 1109 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 2157 SdHoareTripleChecker+Invalid, 1112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-20 17:07:51,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 2157 Invalid, 1112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1109 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-20 17:07:51,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1388 states. [2024-11-20 17:07:51,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1388 to 1065. [2024-11-20 17:07:51,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1065 states, 677 states have (on average 1.7503692762186116) internal successors, (1185), 1058 states have internal predecessors, (1185), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-20 17:07:51,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 1213 transitions. [2024-11-20 17:07:51,935 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 1213 transitions. Word has length 34 [2024-11-20 17:07:51,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:07:51,935 INFO L471 AbstractCegarLoop]: Abstraction has 1065 states and 1213 transitions. [2024-11-20 17:07:51,936 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) [2024-11-20 17:07:51,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 1213 transitions. [2024-11-20 17:07:51,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-20 17:07:51,938 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:07:51,938 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:07:51,945 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 [2024-11-20 17:07:52,138 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 [2024-11-20 17:07:52,139 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-20 17:07:52,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:07:52,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1181697534, now seen corresponding path program 1 times [2024-11-20 17:07:52,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:07:52,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [225888524] [2024-11-20 17:07:52,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:07:52,141 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 [2024-11-20 17:07:52,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:07:52,144 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) [2024-11-20 17:07:52,146 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 [2024-11-20 17:07:52,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:07:52,405 INFO L255 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 17:07:52,407 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:07:52,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:07:52,452 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:07:52,453 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:07:52,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [225888524] [2024-11-20 17:07:52,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [225888524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:07:52,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:07:52,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 17:07:52,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206734499] [2024-11-20 17:07:52,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:07:52,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:07:52,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:07:52,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:07:52,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:07:52,454 INFO L87 Difference]: Start difference. First operand 1065 states and 1213 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) [2024-11-20 17:07:52,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:07:52,510 INFO L93 Difference]: Finished difference Result 1053 states and 1193 transitions. [2024-11-20 17:07:52,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 17:07:52,511 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 [2024-11-20 17:07:52,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:07:52,516 INFO L225 Difference]: With dead ends: 1053 [2024-11-20 17:07:52,516 INFO L226 Difference]: Without dead ends: 1053 [2024-11-20 17:07:52,516 INFO L431 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 [2024-11-20 17:07:52,517 INFO L432 NwaCegarLoop]: 908 mSDtfsCounter, 21 mSDsluCounter, 1785 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 2693 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 [2024-11-20 17:07:52,517 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 2693 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 17:07:52,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2024-11-20 17:07:52,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 1053. [2024-11-20 17:07:52,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1053 states, 665 states have (on average 1.7518796992481203) internal successors, (1165), 1046 states have internal predecessors, (1165), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-20 17:07:52,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1193 transitions. [2024-11-20 17:07:52,533 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1193 transitions. Word has length 53 [2024-11-20 17:07:52,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:07:52,533 INFO L471 AbstractCegarLoop]: Abstraction has 1053 states and 1193 transitions. [2024-11-20 17:07:52,533 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) [2024-11-20 17:07:52,533 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1193 transitions. [2024-11-20 17:07:52,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-20 17:07:52,535 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:07:52,535 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:07:52,543 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 [2024-11-20 17:07:52,735 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 [2024-11-20 17:07:52,736 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-20 17:07:52,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:07:52,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1740051530, now seen corresponding path program 1 times [2024-11-20 17:07:52,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:07:52,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1237944940] [2024-11-20 17:07:52,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:07:52,737 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 [2024-11-20 17:07:52,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:07:52,738 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) [2024-11-20 17:07:52,739 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 [2024-11-20 17:07:53,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:07:53,036 INFO L255 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-20 17:07:53,040 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:07:53,051 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 [2024-11-20 17:07:53,058 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 [2024-11-20 17:07:53,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 17:07:53,532 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 [2024-11-20 17:07:53,545 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-20 17:07:53,546 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 [2024-11-20 17:07:53,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:07:53,558 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:07:53,558 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:07:53,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1237944940] [2024-11-20 17:07:53,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1237944940] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:07:53,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:07:53,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:07:53,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360313506] [2024-11-20 17:07:53,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:07:53,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:07:53,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:07:53,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:07:53,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:07:53,560 INFO L87 Difference]: Start difference. First operand 1053 states and 1193 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) [2024-11-20 17:07:54,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:07:54,709 INFO L93 Difference]: Finished difference Result 1015 states and 1155 transitions. [2024-11-20 17:07:54,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 17:07:54,710 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 [2024-11-20 17:07:54,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:07:54,713 INFO L225 Difference]: With dead ends: 1015 [2024-11-20 17:07:54,713 INFO L226 Difference]: Without dead ends: 1015 [2024-11-20 17:07:54,713 INFO L431 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 [2024-11-20 17:07:54,714 INFO L432 NwaCegarLoop]: 479 mSDtfsCounter, 1160 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1168 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-20 17:07:54,714 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1168 Valid, 597 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-20 17:07:54,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2024-11-20 17:07:54,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 978. [2024-11-20 17:07:54,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 978 states, 628 states have (on average 1.6767515923566878) internal successors, (1053), 971 states have internal predecessors, (1053), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-20 17:07:54,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1081 transitions. [2024-11-20 17:07:54,724 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 1081 transitions. Word has length 61 [2024-11-20 17:07:54,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:07:54,724 INFO L471 AbstractCegarLoop]: Abstraction has 978 states and 1081 transitions. [2024-11-20 17:07:54,725 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) [2024-11-20 17:07:54,725 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 1081 transitions. [2024-11-20 17:07:54,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-20 17:07:54,725 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:07:54,726 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:07:54,736 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 (16)] Forceful destruction successful, exit code 0 [2024-11-20 17:07:54,926 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 [2024-11-20 17:07:54,926 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-20 17:07:54,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:07:54,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1654454369, now seen corresponding path program 1 times [2024-11-20 17:07:54,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:07:54,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1585455679] [2024-11-20 17:07:54,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:07:54,928 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 [2024-11-20 17:07:54,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:07:54,929 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) [2024-11-20 17:07:54,930 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 [2024-11-20 17:07:55,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:07:55,171 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-20 17:07:55,173 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:07:55,180 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 [2024-11-20 17:07:55,193 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 [2024-11-20 17:07:55,215 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 [2024-11-20 17:07:55,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:07:55,224 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:07:55,225 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:07:55,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1585455679] [2024-11-20 17:07:55,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1585455679] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:07:55,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:07:55,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 17:07:55,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038658560] [2024-11-20 17:07:55,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:07:55,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 17:07:55,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:07:55,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 17:07:55,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 17:07:55,226 INFO L87 Difference]: Start difference. First operand 978 states and 1081 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) [2024-11-20 17:07:56,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:07:56,562 INFO L93 Difference]: Finished difference Result 977 states and 1080 transitions. [2024-11-20 17:07:56,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 17:07:56,563 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 [2024-11-20 17:07:56,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:07:56,565 INFO L225 Difference]: With dead ends: 977 [2024-11-20 17:07:56,566 INFO L226 Difference]: Without dead ends: 977 [2024-11-20 17:07:56,566 INFO L431 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 [2024-11-20 17:07:56,566 INFO L432 NwaCegarLoop]: 881 mSDtfsCounter, 2 mSDsluCounter, 1432 mSDsCounter, 0 mSdLazyCounter, 1218 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2313 SdHoareTripleChecker+Invalid, 1219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-20 17:07:56,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2313 Invalid, 1219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1218 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-20 17:07:56,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2024-11-20 17:07:56,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 977. [2024-11-20 17:07:56,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 628 states have (on average 1.6751592356687899) internal successors, (1052), 970 states have internal predecessors, (1052), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-20 17:07:56,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1080 transitions. [2024-11-20 17:07:56,576 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1080 transitions. Word has length 66 [2024-11-20 17:07:56,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:07:56,576 INFO L471 AbstractCegarLoop]: Abstraction has 977 states and 1080 transitions. [2024-11-20 17:07:56,576 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) [2024-11-20 17:07:56,576 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1080 transitions. [2024-11-20 17:07:56,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-20 17:07:56,577 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:07:56,577 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:07:56,587 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 [2024-11-20 17:07:56,777 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 [2024-11-20 17:07:56,778 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-20 17:07:56,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:07:56,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1654454368, now seen corresponding path program 1 times [2024-11-20 17:07:56,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:07:56,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [326918206] [2024-11-20 17:07:56,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:07:56,779 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 [2024-11-20 17:07:56,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:07:56,782 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) [2024-11-20 17:07:56,783 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 [2024-11-20 17:07:57,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:07:57,083 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-20 17:07:57,086 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:07:57,100 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 [2024-11-20 17:07:57,117 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 [2024-11-20 17:07:57,125 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 [2024-11-20 17:07:57,158 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 [2024-11-20 17:07:57,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:07:57,176 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:07:57,176 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:07:57,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [326918206] [2024-11-20 17:07:57,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [326918206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:07:57,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:07:57,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 17:07:57,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467872072] [2024-11-20 17:07:57,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:07:57,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 17:07:57,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:07:57,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 17:07:57,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 17:07:57,178 INFO L87 Difference]: Start difference. First operand 977 states and 1080 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) [2024-11-20 17:07:58,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:07:58,932 INFO L93 Difference]: Finished difference Result 976 states and 1079 transitions. [2024-11-20 17:07:58,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 17:07:58,933 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 [2024-11-20 17:07:58,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:07:58,936 INFO L225 Difference]: With dead ends: 976 [2024-11-20 17:07:58,936 INFO L226 Difference]: Without dead ends: 976 [2024-11-20 17:07:58,936 INFO L431 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 [2024-11-20 17:07:58,937 INFO L432 NwaCegarLoop]: 881 mSDtfsCounter, 1 mSDsluCounter, 1465 mSDsCounter, 0 mSdLazyCounter, 1182 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2346 SdHoareTripleChecker+Invalid, 1183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-20 17:07:58,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2346 Invalid, 1183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1182 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-20 17:07:58,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2024-11-20 17:07:58,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 976. [2024-11-20 17:07:58,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 976 states, 627 states have (on average 1.6762360446570972) internal successors, (1051), 969 states have internal predecessors, (1051), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-20 17:07:58,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 976 states to 976 states and 1079 transitions. [2024-11-20 17:07:58,949 INFO L78 Accepts]: Start accepts. Automaton has 976 states and 1079 transitions. Word has length 66 [2024-11-20 17:07:58,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:07:58,949 INFO L471 AbstractCegarLoop]: Abstraction has 976 states and 1079 transitions. [2024-11-20 17:07:58,949 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) [2024-11-20 17:07:58,949 INFO L276 IsEmpty]: Start isEmpty. Operand 976 states and 1079 transitions. [2024-11-20 17:07:58,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-20 17:07:58,950 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:07:58,950 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:07:58,958 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2024-11-20 17:07:59,151 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 [2024-11-20 17:07:59,151 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-20 17:07:59,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:07:59,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1185864454, now seen corresponding path program 1 times [2024-11-20 17:07:59,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:07:59,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1327492165] [2024-11-20 17:07:59,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:07:59,153 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 [2024-11-20 17:07:59,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:07:59,154 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) [2024-11-20 17:07:59,155 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 [2024-11-20 17:07:59,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:07:59,391 INFO L255 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 17:07:59,393 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:07:59,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:07:59,413 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:07:59,413 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:07:59,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1327492165] [2024-11-20 17:07:59,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1327492165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:07:59,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:07:59,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 17:07:59,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294923237] [2024-11-20 17:07:59,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:07:59,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:07:59,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:07:59,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:07:59,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:07:59,415 INFO L87 Difference]: Start difference. First operand 976 states and 1079 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) [2024-11-20 17:07:59,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:07:59,444 INFO L93 Difference]: Finished difference Result 979 states and 1083 transitions. [2024-11-20 17:07:59,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 17:07:59,445 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 [2024-11-20 17:07:59,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:07:59,448 INFO L225 Difference]: With dead ends: 979 [2024-11-20 17:07:59,448 INFO L226 Difference]: Without dead ends: 979 [2024-11-20 17:07:59,449 INFO L431 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 [2024-11-20 17:07:59,449 INFO L432 NwaCegarLoop]: 881 mSDtfsCounter, 0 mSDsluCounter, 1757 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2638 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 [2024-11-20 17:07:59,449 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2638 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 17:07:59,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 979 states. [2024-11-20 17:07:59,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 979 to 979. [2024-11-20 17:07:59,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 979 states, 629 states have (on average 1.6756756756756757) internal successors, (1054), 972 states have internal predecessors, (1054), 15 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-20 17:07:59,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1083 transitions. [2024-11-20 17:07:59,463 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1083 transitions. Word has length 74 [2024-11-20 17:07:59,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:07:59,463 INFO L471 AbstractCegarLoop]: Abstraction has 979 states and 1083 transitions. [2024-11-20 17:07:59,463 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) [2024-11-20 17:07:59,463 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1083 transitions. [2024-11-20 17:07:59,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-20 17:07:59,464 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:07:59,464 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:07:59,473 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 [2024-11-20 17:07:59,665 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 [2024-11-20 17:07:59,665 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-20 17:07:59,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:07:59,665 INFO L85 PathProgramCache]: Analyzing trace with hash -939299591, now seen corresponding path program 1 times [2024-11-20 17:07:59,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:07:59,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [700783804] [2024-11-20 17:07:59,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:07:59,666 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 [2024-11-20 17:07:59,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:07:59,669 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) [2024-11-20 17:07:59,671 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 [2024-11-20 17:07:59,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:07:59,992 INFO L255 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 17:07:59,994 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:08:00,018 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:08:00,019 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 17:08:00,080 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:08:00,080 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:08:00,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [700783804] [2024-11-20 17:08:00,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [700783804] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 17:08:00,080 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-20 17:08:00,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-20 17:08:00,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151073675] [2024-11-20 17:08:00,081 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-20 17:08:00,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 17:08:00,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:08:00,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 17:08:00,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-20 17:08:00,086 INFO L87 Difference]: Start difference. First operand 979 states and 1083 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) [2024-11-20 17:08:00,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:08:00,194 INFO L93 Difference]: Finished difference Result 991 states and 1100 transitions. [2024-11-20 17:08:00,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 17:08:00,195 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 [2024-11-20 17:08:00,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:08:00,197 INFO L225 Difference]: With dead ends: 991 [2024-11-20 17:08:00,197 INFO L226 Difference]: Without dead ends: 991 [2024-11-20 17:08:00,198 INFO L431 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 [2024-11-20 17:08:00,198 INFO L432 NwaCegarLoop]: 881 mSDtfsCounter, 5 mSDsluCounter, 2634 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 3515 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 17:08:00,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 3515 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 17:08:00,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2024-11-20 17:08:00,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 989. [2024-11-20 17:08:00,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 638 states have (on average 1.6755485893416928) internal successors, (1069), 981 states have internal predecessors, (1069), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-20 17:08:00,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1098 transitions. [2024-11-20 17:08:00,210 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1098 transitions. Word has length 75 [2024-11-20 17:08:00,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:08:00,210 INFO L471 AbstractCegarLoop]: Abstraction has 989 states and 1098 transitions. [2024-11-20 17:08:00,210 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) [2024-11-20 17:08:00,210 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1098 transitions. [2024-11-20 17:08:00,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-20 17:08:00,213 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:08:00,214 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:08:00,225 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 [2024-11-20 17:08:00,414 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 [2024-11-20 17:08:00,414 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-20 17:08:00,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:08:00,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1077755846, now seen corresponding path program 2 times [2024-11-20 17:08:00,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:08:00,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [137162919] [2024-11-20 17:08:00,415 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 17:08:00,415 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 [2024-11-20 17:08:00,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:08:00,417 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) [2024-11-20 17:08:00,417 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 [2024-11-20 17:08:00,873 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-20 17:08:00,873 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 17:08:00,884 INFO L255 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-20 17:08:00,886 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:08:00,935 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:08:00,935 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 17:08:01,067 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:08:01,068 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:08:01,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [137162919] [2024-11-20 17:08:01,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [137162919] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 17:08:01,068 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-20 17:08:01,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-20 17:08:01,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097048477] [2024-11-20 17:08:01,068 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-20 17:08:01,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-20 17:08:01,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:08:01,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-20 17:08:01,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-20 17:08:01,070 INFO L87 Difference]: Start difference. First operand 989 states and 1098 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) [2024-11-20 17:08:01,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:08:01,429 INFO L93 Difference]: Finished difference Result 1004 states and 1120 transitions. [2024-11-20 17:08:01,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-20 17:08:01,430 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 [2024-11-20 17:08:01,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:08:01,433 INFO L225 Difference]: With dead ends: 1004 [2024-11-20 17:08:01,433 INFO L226 Difference]: Without dead ends: 1000 [2024-11-20 17:08:01,434 INFO L431 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 [2024-11-20 17:08:01,434 INFO L432 NwaCegarLoop]: 881 mSDtfsCounter, 13 mSDsluCounter, 7896 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 8777 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 17:08:01,434 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 8777 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 17:08:01,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1000 states. [2024-11-20 17:08:01,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1000 to 998. [2024-11-20 17:08:01,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 647 states have (on average 1.6707882534775889) internal successors, (1081), 990 states have internal predecessors, (1081), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-20 17:08:01,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1110 transitions. [2024-11-20 17:08:01,451 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1110 transitions. Word has length 78 [2024-11-20 17:08:01,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:08:01,452 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1110 transitions. [2024-11-20 17:08:01,452 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) [2024-11-20 17:08:01,452 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1110 transitions. [2024-11-20 17:08:01,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-20 17:08:01,452 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:08:01,452 INFO L215 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:08:01,461 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2024-11-20 17:08:01,653 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 [2024-11-20 17:08:01,653 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-20 17:08:01,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:08:01,653 INFO L85 PathProgramCache]: Analyzing trace with hash -207019290, now seen corresponding path program 3 times [2024-11-20 17:08:01,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:08:01,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1678679353] [2024-11-20 17:08:01,654 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-20 17:08:01,654 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 [2024-11-20 17:08:01,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:08:01,655 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) [2024-11-20 17:08:01,656 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 [2024-11-20 17:08:02,240 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-20 17:08:02,240 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 17:08:02,252 INFO L255 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-20 17:08:02,254 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:08:02,375 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:08:02,375 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 17:08:02,783 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:08:02,784 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:08:02,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1678679353] [2024-11-20 17:08:02,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1678679353] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 17:08:02,784 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-20 17:08:02,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-11-20 17:08:02,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649624970] [2024-11-20 17:08:02,784 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-20 17:08:02,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-20 17:08:02,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:08:02,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-20 17:08:02,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-11-20 17:08:02,786 INFO L87 Difference]: Start difference. First operand 998 states and 1110 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) [2024-11-20 17:08:04,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:08:04,132 INFO L93 Difference]: Finished difference Result 1022 states and 1149 transitions. [2024-11-20 17:08:04,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-20 17:08:04,133 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 [2024-11-20 17:08:04,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:08:04,138 INFO L225 Difference]: With dead ends: 1022 [2024-11-20 17:08:04,138 INFO L226 Difference]: Without dead ends: 1016 [2024-11-20 17:08:04,139 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2024-11-20 17:08:04,139 INFO L432 NwaCegarLoop]: 882 mSDtfsCounter, 21 mSDsluCounter, 11423 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 12305 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-20 17:08:04,139 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 12305 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-20 17:08:04,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states. [2024-11-20 17:08:04,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 1016. [2024-11-20 17:08:04,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1016 states, 665 states have (on average 1.6601503759398497) internal successors, (1104), 1008 states have internal predecessors, (1104), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-20 17:08:04,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1016 states to 1016 states and 1133 transitions. [2024-11-20 17:08:04,153 INFO L78 Accepts]: Start accepts. Automaton has 1016 states and 1133 transitions. Word has length 84 [2024-11-20 17:08:04,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:08:04,154 INFO L471 AbstractCegarLoop]: Abstraction has 1016 states and 1133 transitions. [2024-11-20 17:08:04,154 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) [2024-11-20 17:08:04,154 INFO L276 IsEmpty]: Start isEmpty. Operand 1016 states and 1133 transitions. [2024-11-20 17:08:04,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-20 17:08:04,155 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:08:04,155 INFO L215 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:08:04,166 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Ended with exit code 0 [2024-11-20 17:08:04,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 17:08:04,356 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-20 17:08:04,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:08:04,357 INFO L85 PathProgramCache]: Analyzing trace with hash -667524826, now seen corresponding path program 4 times [2024-11-20 17:08:04,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:08:04,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1224344170] [2024-11-20 17:08:04,357 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-20 17:08:04,357 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 [2024-11-20 17:08:04,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:08:04,358 INFO L229 MonitoredProcess]: Starting monitored process 23 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) [2024-11-20 17:08:04,360 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 (23)] Waiting until timeout for monitored process [2024-11-20 17:08:04,782 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-20 17:08:04,782 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 17:08:04,795 INFO L255 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-20 17:08:04,797 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:08:05,104 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:08:05,104 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 17:08:06,240 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:08:06,241 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:08:06,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1224344170] [2024-11-20 17:08:06,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1224344170] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 17:08:06,241 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-20 17:08:06,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2024-11-20 17:08:06,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161411259] [2024-11-20 17:08:06,241 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-20 17:08:06,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-11-20 17:08:06,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:08:06,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-11-20 17:08:06,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2024-11-20 17:08:06,243 INFO L87 Difference]: Start difference. First operand 1016 states and 1133 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) [2024-11-20 17:08:10,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:08:10,392 INFO L93 Difference]: Finished difference Result 1056 states and 1205 transitions. [2024-11-20 17:08:10,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-11-20 17:08:10,393 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 [2024-11-20 17:08:10,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:08:10,396 INFO L225 Difference]: With dead ends: 1056 [2024-11-20 17:08:10,397 INFO L226 Difference]: Without dead ends: 1052 [2024-11-20 17:08:10,398 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=2713, Invalid=5843, Unknown=0, NotChecked=0, Total=8556 [2024-11-20 17:08:10,399 INFO L432 NwaCegarLoop]: 881 mSDtfsCounter, 37 mSDsluCounter, 20197 mSDsCounter, 0 mSdLazyCounter, 1931 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 21078 SdHoareTripleChecker+Invalid, 1977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1931 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-20 17:08:10,399 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 21078 Invalid, 1977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1931 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-20 17:08:10,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2024-11-20 17:08:10,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 1050. [2024-11-20 17:08:10,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1050 states, 699 states have (on average 1.6452074391988556) internal successors, (1150), 1042 states have internal predecessors, (1150), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-20 17:08:10,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1179 transitions. [2024-11-20 17:08:10,411 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1179 transitions. Word has length 96 [2024-11-20 17:08:10,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:08:10,412 INFO L471 AbstractCegarLoop]: Abstraction has 1050 states and 1179 transitions. [2024-11-20 17:08:10,412 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) [2024-11-20 17:08:10,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1179 transitions. [2024-11-20 17:08:10,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-20 17:08:10,413 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:08:10,413 INFO L215 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:08:10,425 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 (23)] Forceful destruction successful, exit code 0 [2024-11-20 17:08:10,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 17:08:10,617 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-11-20 17:08:10,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:08:10,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1226272954, now seen corresponding path program 5 times [2024-11-20 17:08:10,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:08:10,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [15260039] [2024-11-20 17:08:10,619 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-20 17:08:10,619 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 [2024-11-20 17:08:10,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:08:10,620 INFO L229 MonitoredProcess]: Starting monitored process 24 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) [2024-11-20 17:08:10,621 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 (24)] Waiting until timeout for monitored process [2024-11-20 17:08:11,742 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2024-11-20 17:08:11,743 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 17:08:11,764 INFO L255 TraceCheckSpWp]: Trace formula consists of 816 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-11-20 17:08:11,771 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:08:11,776 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 [2024-11-20 17:08:11,866 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-20 17:08:11,867 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 [2024-11-20 17:08:11,907 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 [2024-11-20 17:08:11,997 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 [2024-11-20 17:08:12,889 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-20 17:08:12,890 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 [2024-11-20 17:08:12,936 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 [2024-11-20 17:08:12,956 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-20 17:08:12,956 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 17:08:13,236 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2025 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_2025) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))) is different from false [2024-11-20 17:08:13,238 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:08:13,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [15260039] [2024-11-20 17:08:13,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [15260039] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 17:08:13,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [525414202] [2024-11-20 17:08:13,238 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-20 17:08:13,238 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-20 17:08:13,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-20 17:08:13,240 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-20 17:08:13,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process