./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 803cd42f 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 ../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.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 bb48026e7f870ff561a4cdd394c24cb5edb1d0f2fc8e8ef2bffe0b7b8438fda4 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 21:11:42,832 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 21:11:42,901 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-22 21:11:42,905 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 21:11:42,907 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 21:11:42,944 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 21:11:42,945 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 21:11:42,945 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 21:11:42,946 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 21:11:42,948 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 21:11:42,948 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 21:11:42,949 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 21:11:42,949 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 21:11:42,950 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 21:11:42,952 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 21:11:42,952 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 21:11:42,952 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 21:11:42,953 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 21:11:42,953 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 21:11:42,953 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 21:11:42,953 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-22 21:11:42,954 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-22 21:11:42,954 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-22 21:11:42,955 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 21:11:42,957 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-22 21:11:42,957 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 21:11:42,957 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 21:11:42,958 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 21:11:42,958 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 21:11:42,958 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 21:11:42,958 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 21:11:42,959 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 21:11:42,959 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 21:11:42,959 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 21:11:42,959 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 21:11:42,959 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 21:11:42,960 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 21:11:42,960 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 21:11:42,962 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 21:11:42,962 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 21:11:42,962 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 21:11:42,963 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 21:11:42,963 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb48026e7f870ff561a4cdd394c24cb5edb1d0f2fc8e8ef2bffe0b7b8438fda4 [2024-11-22 21:11:43,224 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 21:11:43,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 21:11:43,249 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 21:11:43,250 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 21:11:43,250 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 21:11:43,251 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i [2024-11-22 21:11:44,722 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 21:11:45,009 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 21:11:45,009 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i [2024-11-22 21:11:45,035 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b874afdd3/0e385ccb5e7b4a449aba1f47311b5469/FLAG71f7859ec [2024-11-22 21:11:45,288 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b874afdd3/0e385ccb5e7b4a449aba1f47311b5469 [2024-11-22 21:11:45,289 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 21:11:45,291 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 21:11:45,292 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 21:11:45,292 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 21:11:45,296 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 21:11:45,296 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:11:45" (1/1) ... [2024-11-22 21:11:45,297 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fff3ca6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:11:45, skipping insertion in model container [2024-11-22 21:11:45,297 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:11:45" (1/1) ... [2024-11-22 21:11:45,352 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 21:11:45,874 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:45,910 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:45,914 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:45,923 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:45,928 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:45,977 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:45,979 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:45,982 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:45,985 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:45,988 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:45,991 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:45,993 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:45,994 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:46,002 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:46,006 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:46,010 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:46,013 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:46,015 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:46,016 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:46,022 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:46,037 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 21:11:46,056 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) [2024-11-22 21:11:46,057 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4d311d69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:11:46, skipping insertion in model container [2024-11-22 21:11:46,057 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 21:11:46,058 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-22 21:11:46,060 INFO L158 Benchmark]: Toolchain (without parser) took 768.00ms. Allocated memory is still 172.0MB. Free memory was 112.6MB in the beginning and 85.4MB in the end (delta: 27.1MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-22 21:11:46,060 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 172.0MB. Free memory was 139.5MB in the beginning and 139.2MB in the end (delta: 293.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 21:11:46,061 INFO L158 Benchmark]: CACSL2BoogieTranslator took 765.98ms. Allocated memory is still 172.0MB. Free memory was 112.2MB in the beginning and 85.4MB in the end (delta: 26.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-22 21:11:46,062 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 172.0MB. Free memory was 139.5MB in the beginning and 139.2MB in the end (delta: 293.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 765.98ms. Allocated memory is still 172.0MB. Free memory was 112.2MB in the beginning and 85.4MB in the end (delta: 26.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1001]: 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 ../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.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 bb48026e7f870ff561a4cdd394c24cb5edb1d0f2fc8e8ef2bffe0b7b8438fda4 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 21:11:48,027 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 21:11:48,108 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-22 21:11:48,114 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 21:11:48,115 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 21:11:48,145 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 21:11:48,147 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 21:11:48,148 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 21:11:48,148 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 21:11:48,149 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 21:11:48,149 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 21:11:48,149 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 21:11:48,150 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 21:11:48,151 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 21:11:48,152 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 21:11:48,153 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 21:11:48,153 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 21:11:48,153 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 21:11:48,154 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 21:11:48,154 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 21:11:48,154 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-22 21:11:48,158 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-22 21:11:48,158 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-22 21:11:48,158 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 21:11:48,158 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-22 21:11:48,159 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-22 21:11:48,159 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 21:11:48,159 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-22 21:11:48,159 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 21:11:48,159 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 21:11:48,160 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 21:11:48,160 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 21:11:48,160 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 21:11:48,160 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 21:11:48,161 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 21:11:48,161 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 21:11:48,162 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 21:11:48,163 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 21:11:48,163 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-22 21:11:48,163 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-22 21:11:48,164 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 21:11:48,164 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 21:11:48,164 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 21:11:48,164 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 21:11:48,165 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb48026e7f870ff561a4cdd394c24cb5edb1d0f2fc8e8ef2bffe0b7b8438fda4 [2024-11-22 21:11:48,478 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 21:11:48,499 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 21:11:48,502 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 21:11:48,503 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 21:11:48,504 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 21:11:48,505 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i [2024-11-22 21:11:50,120 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 21:11:50,480 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 21:11:50,482 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i [2024-11-22 21:11:50,510 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c24db8aa9/62b58feaf98f4bca87ff7a7785fc3740/FLAG0a4016e45 [2024-11-22 21:11:50,526 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c24db8aa9/62b58feaf98f4bca87ff7a7785fc3740 [2024-11-22 21:11:50,529 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 21:11:50,530 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 21:11:50,533 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 21:11:50,534 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 21:11:50,538 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 21:11:50,539 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:11:50" (1/1) ... [2024-11-22 21:11:50,542 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1342b67a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:11:50, skipping insertion in model container [2024-11-22 21:11:50,542 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:11:50" (1/1) ... [2024-11-22 21:11:50,602 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 21:11:51,161 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:51,201 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:51,206 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:51,212 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:51,219 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:51,262 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:51,263 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:51,264 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:51,265 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:51,271 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:51,272 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:51,276 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:51,276 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:51,283 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:51,284 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:51,288 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:51,289 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:51,290 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:51,291 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:51,297 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:51,306 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 21:11:51,328 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-22 21:11:51,339 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 21:11:51,376 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:51,387 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:51,389 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:51,391 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:51,394 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:51,416 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:51,417 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:51,420 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:51,421 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:51,423 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:51,425 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:51,426 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:51,427 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:51,434 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:51,434 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:51,436 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:51,436 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:51,437 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:51,442 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:51,444 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:11:51,447 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 21:11:51,455 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 21:11:51,536 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 21:11:51,614 INFO L204 MainTranslator]: Completed translation [2024-11-22 21:11:51,615 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:11:51 WrapperNode [2024-11-22 21:11:51,615 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 21:11:51,616 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 21:11:51,616 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 21:11:51,617 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 21:11:51,623 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:11:51" (1/1) ... [2024-11-22 21:11:51,659 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:11:51" (1/1) ... [2024-11-22 21:11:51,721 INFO L138 Inliner]: procedures = 286, calls = 353, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1243 [2024-11-22 21:11:51,721 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 21:11:51,722 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 21:11:51,722 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 21:11:51,722 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 21:11:51,732 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:11:51" (1/1) ... [2024-11-22 21:11:51,733 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:11:51" (1/1) ... [2024-11-22 21:11:51,758 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:11:51" (1/1) ... [2024-11-22 21:11:51,879 INFO L175 MemorySlicer]: Split 318 memory accesses to 4 slices as follows [2, 12, 34, 270]. 85 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 10, 0, 0]. The 62 writes are split as follows [0, 1, 4, 57]. [2024-11-22 21:11:51,883 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:11:51" (1/1) ... [2024-11-22 21:11:51,884 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:11:51" (1/1) ... [2024-11-22 21:11:51,929 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:11:51" (1/1) ... [2024-11-22 21:11:51,938 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:11:51" (1/1) ... [2024-11-22 21:11:51,943 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:11:51" (1/1) ... [2024-11-22 21:11:51,955 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:11:51" (1/1) ... [2024-11-22 21:11:51,969 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 21:11:51,973 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 21:11:51,973 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 21:11:51,973 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 21:11:51,974 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:11:51" (1/1) ... [2024-11-22 21:11:51,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 21:11:51,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:11:52,005 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) [2024-11-22 21:11:52,008 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 [2024-11-22 21:11:52,038 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-22 21:11:52,039 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-22 21:11:52,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-22 21:11:52,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-22 21:11:52,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-22 21:11:52,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-11-22 21:11:52,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-22 21:11:52,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-22 21:11:52,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-22 21:11:52,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-22 21:11:52,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 21:11:52,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-22 21:11:52,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-22 21:11:52,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-22 21:11:52,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-22 21:11:52,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 21:11:52,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-22 21:11:52,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-22 21:11:52,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-22 21:11:52,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-22 21:11:52,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-22 21:11:52,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-22 21:11:52,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-22 21:11:52,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-22 21:11:52,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-22 21:11:52,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-22 21:11:52,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-22 21:11:52,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-11-22 21:11:52,041 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2024-11-22 21:11:52,041 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2024-11-22 21:11:52,041 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-22 21:11:52,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-22 21:11:52,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-22 21:11:52,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 21:11:52,042 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2024-11-22 21:11:52,042 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2024-11-22 21:11:52,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-22 21:11:52,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-22 21:11:52,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-22 21:11:52,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-22 21:11:52,042 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2024-11-22 21:11:52,043 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2024-11-22 21:11:52,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 21:11:52,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 21:11:52,304 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 21:11:52,306 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 21:11:55,814 INFO L? ?]: Removed 1307 outVars from TransFormulas that were not future-live. [2024-11-22 21:11:55,815 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 21:11:55,846 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 21:11:55,846 INFO L316 CfgBuilder]: Removed 72 assume(true) statements. [2024-11-22 21:11:55,847 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:11:55 BoogieIcfgContainer [2024-11-22 21:11:55,847 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 21:11:55,849 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 21:11:55,849 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 21:11:55,852 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 21:11:55,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:11:50" (1/3) ... [2024-11-22 21:11:55,853 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b971d74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:11:55, skipping insertion in model container [2024-11-22 21:11:55,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:11:51" (2/3) ... [2024-11-22 21:11:55,853 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b971d74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:11:55, skipping insertion in model container [2024-11-22 21:11:55,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:11:55" (3/3) ... [2024-11-22 21:11:55,854 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test6-2.i [2024-11-22 21:11:55,869 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 21:11:55,869 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 625 error locations. [2024-11-22 21:11:55,937 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 21:11:55,944 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;@659e7db8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 21:11:55,945 INFO L334 AbstractCegarLoop]: Starting to check reachability of 625 error locations. [2024-11-22 21:11:55,952 INFO L276 IsEmpty]: Start isEmpty. Operand has 1284 states, 634 states have (on average 2.2145110410094637) internal successors, (1404), 1262 states have internal predecessors, (1404), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-22 21:11:55,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-22 21:11:55,957 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:11:55,958 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-22 21:11:55,958 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-22 21:11:55,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:11:55,963 INFO L85 PathProgramCache]: Analyzing trace with hash 85465, now seen corresponding path program 1 times [2024-11-22 21:11:55,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:11:55,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [164555485] [2024-11-22 21:11:55,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:11:55,975 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 [2024-11-22 21:11:55,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:11:55,978 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) [2024-11-22 21:11:55,981 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 [2024-11-22 21:11:56,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:11:56,158 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 21:11:56,164 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:11:56,230 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 [2024-11-22 21:11:56,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:11:56,241 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:11:56,241 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:11:56,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [164555485] [2024-11-22 21:11:56,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [164555485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:11:56,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:11:56,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 21:11:56,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71750007] [2024-11-22 21:11:56,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:11:56,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:11:56,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:11:56,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:11:56,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:11:56,280 INFO L87 Difference]: Start difference. First operand has 1284 states, 634 states have (on average 2.2145110410094637) internal successors, (1404), 1262 states have internal predecessors, (1404), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) 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) [2024-11-22 21:11:57,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:11:57,943 INFO L93 Difference]: Finished difference Result 1544 states and 1637 transitions. [2024-11-22 21:11:57,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:11:57,945 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 [2024-11-22 21:11:57,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:11:57,961 INFO L225 Difference]: With dead ends: 1544 [2024-11-22 21:11:57,961 INFO L226 Difference]: Without dead ends: 1542 [2024-11-22 21:11:57,963 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 [2024-11-22 21:11:57,966 INFO L432 NwaCegarLoop]: 911 mSDtfsCounter, 914 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 917 SdHoareTripleChecker+Valid, 1260 SdHoareTripleChecker+Invalid, 804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-22 21:11:57,966 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [917 Valid, 1260 Invalid, 804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 792 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-22 21:11:57,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1542 states. [2024-11-22 21:11:58,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1542 to 1305. [2024-11-22 21:11:58,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1305 states, 670 states have (on average 2.0791044776119403) internal successors, (1393), 1285 states have internal predecessors, (1393), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-22 21:11:58,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1305 states to 1305 states and 1427 transitions. [2024-11-22 21:11:58,058 INFO L78 Accepts]: Start accepts. Automaton has 1305 states and 1427 transitions. Word has length 3 [2024-11-22 21:11:58,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:11:58,058 INFO L471 AbstractCegarLoop]: Abstraction has 1305 states and 1427 transitions. [2024-11-22 21:11:58,059 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) [2024-11-22 21:11:58,059 INFO L276 IsEmpty]: Start isEmpty. Operand 1305 states and 1427 transitions. [2024-11-22 21:11:58,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-22 21:11:58,059 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:11:58,060 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-22 21:11:58,064 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-22 21:11:58,262 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 [2024-11-22 21:11:58,263 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-22 21:11:58,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:11:58,264 INFO L85 PathProgramCache]: Analyzing trace with hash 85466, now seen corresponding path program 1 times [2024-11-22 21:11:58,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:11:58,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1668013431] [2024-11-22 21:11:58,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:11:58,265 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 [2024-11-22 21:11:58,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:11:58,267 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) [2024-11-22 21:11:58,268 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 [2024-11-22 21:11:58,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:11:58,420 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 21:11:58,422 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:11:58,431 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 [2024-11-22 21:11:58,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:11:58,443 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:11:58,443 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:11:58,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1668013431] [2024-11-22 21:11:58,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1668013431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:11:58,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:11:58,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 21:11:58,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916805373] [2024-11-22 21:11:58,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:11:58,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:11:58,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:11:58,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:11:58,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:11:58,446 INFO L87 Difference]: Start difference. First operand 1305 states and 1427 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) [2024-11-22 21:12:00,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:12:00,811 INFO L93 Difference]: Finished difference Result 1908 states and 2080 transitions. [2024-11-22 21:12:00,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:12:00,811 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 [2024-11-22 21:12:00,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:12:00,818 INFO L225 Difference]: With dead ends: 1908 [2024-11-22 21:12:00,818 INFO L226 Difference]: Without dead ends: 1908 [2024-11-22 21:12:00,818 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 [2024-11-22 21:12:00,819 INFO L432 NwaCegarLoop]: 1048 mSDtfsCounter, 636 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 643 SdHoareTripleChecker+Valid, 1760 SdHoareTripleChecker+Invalid, 921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-22 21:12:00,820 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [643 Valid, 1760 Invalid, 921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 916 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-22 21:12:00,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1908 states. [2024-11-22 21:12:00,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1908 to 1518. [2024-11-22 21:12:00,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1518 states, 882 states have (on average 2.061224489795918) internal successors, (1818), 1496 states have internal predecessors, (1818), 21 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-22 21:12:00,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 1856 transitions. [2024-11-22 21:12:00,881 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 1856 transitions. Word has length 3 [2024-11-22 21:12:00,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:12:00,881 INFO L471 AbstractCegarLoop]: Abstraction has 1518 states and 1856 transitions. [2024-11-22 21:12:00,881 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) [2024-11-22 21:12:00,881 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 1856 transitions. [2024-11-22 21:12:00,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-22 21:12:00,882 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:12:00,882 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:12:00,886 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-22 21:12:01,085 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 [2024-11-22 21:12:01,086 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-22 21:12:01,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:12:01,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1307350193, now seen corresponding path program 1 times [2024-11-22 21:12:01,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:12:01,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [665339533] [2024-11-22 21:12:01,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:12:01,088 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 [2024-11-22 21:12:01,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:12:01,091 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) [2024-11-22 21:12:01,093 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 [2024-11-22 21:12:01,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:12:01,263 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 21:12:01,266 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:12:01,275 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 [2024-11-22 21:12:01,280 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 [2024-11-22 21:12:01,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 21:12:01,344 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 [2024-11-22 21:12:01,361 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-22 21:12:01,362 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 [2024-11-22 21:12:01,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:12:01,391 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:12:01,392 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:12:01,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [665339533] [2024-11-22 21:12:01,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [665339533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:12:01,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:12:01,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 21:12:01,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659184766] [2024-11-22 21:12:01,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:12:01,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 21:12:01,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:12:01,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 21:12:01,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 21:12:01,394 INFO L87 Difference]: Start difference. First operand 1518 states and 1856 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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) [2024-11-22 21:12:05,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:12:05,406 INFO L93 Difference]: Finished difference Result 2603 states and 3022 transitions. [2024-11-22 21:12:05,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 21:12:05,407 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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 [2024-11-22 21:12:05,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:12:05,415 INFO L225 Difference]: With dead ends: 2603 [2024-11-22 21:12:05,415 INFO L226 Difference]: Without dead ends: 2603 [2024-11-22 21:12:05,415 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 21:12:05,416 INFO L432 NwaCegarLoop]: 705 mSDtfsCounter, 1129 mSDsluCounter, 1108 mSDsCounter, 0 mSdLazyCounter, 2200 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1135 SdHoareTripleChecker+Valid, 1813 SdHoareTripleChecker+Invalid, 2213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-22 21:12:05,417 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1135 Valid, 1813 Invalid, 2213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2200 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-22 21:12:05,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2603 states. [2024-11-22 21:12:05,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2603 to 1667. [2024-11-22 21:12:05,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1667 states, 1031 states have (on average 2.0417070805043647) internal successors, (2105), 1645 states have internal predecessors, (2105), 21 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-22 21:12:05,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1667 states to 1667 states and 2143 transitions. [2024-11-22 21:12:05,450 INFO L78 Accepts]: Start accepts. Automaton has 1667 states and 2143 transitions. Word has length 8 [2024-11-22 21:12:05,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:12:05,452 INFO L471 AbstractCegarLoop]: Abstraction has 1667 states and 2143 transitions. [2024-11-22 21:12:05,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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) [2024-11-22 21:12:05,452 INFO L276 IsEmpty]: Start isEmpty. Operand 1667 states and 2143 transitions. [2024-11-22 21:12:05,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-22 21:12:05,453 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:12:05,453 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:12:05,463 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 [2024-11-22 21:12:05,653 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 [2024-11-22 21:12:05,654 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-22 21:12:05,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:12:05,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1873150296, now seen corresponding path program 1 times [2024-11-22 21:12:05,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:12:05,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [684908636] [2024-11-22 21:12:05,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:12:05,656 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 [2024-11-22 21:12:05,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:12:05,658 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) [2024-11-22 21:12:05,659 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 [2024-11-22 21:12:05,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:12:05,807 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 21:12:05,811 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:12:05,820 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 [2024-11-22 21:12:05,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:12:05,841 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:12:05,841 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:12:05,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [684908636] [2024-11-22 21:12:05,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [684908636] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:12:05,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:12:05,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 21:12:05,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286540109] [2024-11-22 21:12:05,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:12:05,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 21:12:05,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:12:05,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 21:12:05,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 21:12:05,845 INFO L87 Difference]: Start difference. First operand 1667 states and 2143 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:12:07,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:12:07,929 INFO L93 Difference]: Finished difference Result 2214 states and 2918 transitions. [2024-11-22 21:12:07,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 21:12:07,930 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-22 21:12:07,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:12:07,936 INFO L225 Difference]: With dead ends: 2214 [2024-11-22 21:12:07,937 INFO L226 Difference]: Without dead ends: 2214 [2024-11-22 21:12:07,939 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:12:07,940 INFO L432 NwaCegarLoop]: 1227 mSDtfsCounter, 924 mSDsluCounter, 1291 mSDsCounter, 0 mSdLazyCounter, 1687 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 927 SdHoareTripleChecker+Valid, 2518 SdHoareTripleChecker+Invalid, 1736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-22 21:12:07,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [927 Valid, 2518 Invalid, 1736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1687 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-22 21:12:07,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2214 states. [2024-11-22 21:12:07,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2214 to 1622. [2024-11-22 21:12:07,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1622 states, 1031 states have (on average 1.9844810863239573) internal successors, (2046), 1600 states have internal predecessors, (2046), 21 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-22 21:12:07,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1622 states to 1622 states and 2084 transitions. [2024-11-22 21:12:07,976 INFO L78 Accepts]: Start accepts. Automaton has 1622 states and 2084 transitions. Word has length 9 [2024-11-22 21:12:07,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:12:07,976 INFO L471 AbstractCegarLoop]: Abstraction has 1622 states and 2084 transitions. [2024-11-22 21:12:07,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:12:07,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1622 states and 2084 transitions. [2024-11-22 21:12:07,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-22 21:12:07,978 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:12:07,978 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:12:07,983 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-22 21:12:08,178 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 [2024-11-22 21:12:08,179 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-22 21:12:08,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:12:08,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1873150295, now seen corresponding path program 1 times [2024-11-22 21:12:08,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:12:08,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1477232441] [2024-11-22 21:12:08,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:12:08,181 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 [2024-11-22 21:12:08,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:12:08,184 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) [2024-11-22 21:12:08,185 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 [2024-11-22 21:12:08,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:12:08,331 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 21:12:08,337 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:12:08,350 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 [2024-11-22 21:12:08,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:12:08,391 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:12:08,391 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:12:08,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1477232441] [2024-11-22 21:12:08,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1477232441] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:12:08,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:12:08,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 21:12:08,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361369059] [2024-11-22 21:12:08,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:12:08,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 21:12:08,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:12:08,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 21:12:08,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 21:12:08,392 INFO L87 Difference]: Start difference. First operand 1622 states and 2084 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:12:10,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:12:10,784 INFO L93 Difference]: Finished difference Result 2278 states and 2940 transitions. [2024-11-22 21:12:10,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 21:12:10,784 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-22 21:12:10,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:12:10,791 INFO L225 Difference]: With dead ends: 2278 [2024-11-22 21:12:10,791 INFO L226 Difference]: Without dead ends: 2278 [2024-11-22 21:12:10,791 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:12:10,792 INFO L432 NwaCegarLoop]: 1403 mSDtfsCounter, 704 mSDsluCounter, 1470 mSDsCounter, 0 mSdLazyCounter, 1674 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 2873 SdHoareTripleChecker+Invalid, 1688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-22 21:12:10,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [706 Valid, 2873 Invalid, 1688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1674 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-22 21:12:10,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2278 states. [2024-11-22 21:12:10,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2278 to 1614. [2024-11-22 21:12:10,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1614 states, 1033 states have (on average 1.9593417231364956) internal successors, (2024), 1592 states have internal predecessors, (2024), 21 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-22 21:12:10,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1614 states to 1614 states and 2062 transitions. [2024-11-22 21:12:10,821 INFO L78 Accepts]: Start accepts. Automaton has 1614 states and 2062 transitions. Word has length 9 [2024-11-22 21:12:10,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:12:10,821 INFO L471 AbstractCegarLoop]: Abstraction has 1614 states and 2062 transitions. [2024-11-22 21:12:10,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:12:10,821 INFO L276 IsEmpty]: Start isEmpty. Operand 1614 states and 2062 transitions. [2024-11-22 21:12:10,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-22 21:12:10,822 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:12:10,822 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:12:10,827 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 [2024-11-22 21:12:11,026 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 [2024-11-22 21:12:11,026 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-22 21:12:11,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:12:11,027 INFO L85 PathProgramCache]: Analyzing trace with hash -325292811, now seen corresponding path program 1 times [2024-11-22 21:12:11,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:12:11,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1664291216] [2024-11-22 21:12:11,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:12:11,027 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 [2024-11-22 21:12:11,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:12:11,029 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) [2024-11-22 21:12:11,030 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 [2024-11-22 21:12:11,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:12:11,178 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 21:12:11,180 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:12:11,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:12:11,246 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:12:11,246 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:12:11,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1664291216] [2024-11-22 21:12:11,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1664291216] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:12:11,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:12:11,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 21:12:11,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040836079] [2024-11-22 21:12:11,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:12:11,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 21:12:11,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:12:11,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 21:12:11,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 21:12:11,249 INFO L87 Difference]: Start difference. First operand 1614 states and 2062 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:12:11,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:12:11,882 INFO L93 Difference]: Finished difference Result 2240 states and 2833 transitions. [2024-11-22 21:12:11,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 21:12:11,883 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-22 21:12:11,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:12:11,889 INFO L225 Difference]: With dead ends: 2240 [2024-11-22 21:12:11,889 INFO L226 Difference]: Without dead ends: 2240 [2024-11-22 21:12:11,890 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:12:11,890 INFO L432 NwaCegarLoop]: 1454 mSDtfsCounter, 640 mSDsluCounter, 2496 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 3950 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 21:12:11,891 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [645 Valid, 3950 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 21:12:11,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2240 states. [2024-11-22 21:12:11,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2240 to 1877. [2024-11-22 21:12:11,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1877 states, 1293 states have (on average 1.9651972157772621) internal successors, (2541), 1852 states have internal predecessors, (2541), 24 states have call successors, (24), 5 states have call predecessors, (24), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-22 21:12:11,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1877 states to 1877 states and 2585 transitions. [2024-11-22 21:12:11,922 INFO L78 Accepts]: Start accepts. Automaton has 1877 states and 2585 transitions. Word has length 13 [2024-11-22 21:12:11,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:12:11,923 INFO L471 AbstractCegarLoop]: Abstraction has 1877 states and 2585 transitions. [2024-11-22 21:12:11,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:12:11,923 INFO L276 IsEmpty]: Start isEmpty. Operand 1877 states and 2585 transitions. [2024-11-22 21:12:11,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-22 21:12:11,924 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:12:11,924 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:12:11,929 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 [2024-11-22 21:12:12,127 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 [2024-11-22 21:12:12,128 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr322REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-22 21:12:12,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:12:12,128 INFO L85 PathProgramCache]: Analyzing trace with hash -922136276, now seen corresponding path program 1 times [2024-11-22 21:12:12,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:12:12,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [403617947] [2024-11-22 21:12:12,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:12:12,130 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 [2024-11-22 21:12:12,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:12:12,132 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) [2024-11-22 21:12:12,134 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 [2024-11-22 21:12:12,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:12:12,282 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 21:12:12,283 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:12:12,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:12:12,292 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:12:12,292 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:12:12,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [403617947] [2024-11-22 21:12:12,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [403617947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:12:12,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:12:12,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 21:12:12,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669584176] [2024-11-22 21:12:12,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:12:12,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:12:12,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:12:12,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:12:12,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:12:12,294 INFO L87 Difference]: Start difference. First operand 1877 states and 2585 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) [2024-11-22 21:12:12,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:12:12,324 INFO L93 Difference]: Finished difference Result 1781 states and 2413 transitions. [2024-11-22 21:12:12,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:12:12,325 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 [2024-11-22 21:12:12,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:12:12,330 INFO L225 Difference]: With dead ends: 1781 [2024-11-22 21:12:12,331 INFO L226 Difference]: Without dead ends: 1781 [2024-11-22 21:12:12,331 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 [2024-11-22 21:12:12,332 INFO L432 NwaCegarLoop]: 1229 mSDtfsCounter, 71 mSDsluCounter, 1166 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 2395 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 [2024-11-22 21:12:12,332 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 2395 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 21:12:12,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1781 states. [2024-11-22 21:12:12,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1781 to 1781. [2024-11-22 21:12:12,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1781 states, 1221 states have (on average 1.9402129402129402) internal successors, (2369), 1756 states have internal predecessors, (2369), 24 states have call successors, (24), 5 states have call predecessors, (24), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-22 21:12:12,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1781 states to 1781 states and 2413 transitions. [2024-11-22 21:12:12,366 INFO L78 Accepts]: Start accepts. Automaton has 1781 states and 2413 transitions. Word has length 13 [2024-11-22 21:12:12,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:12:12,366 INFO L471 AbstractCegarLoop]: Abstraction has 1781 states and 2413 transitions. [2024-11-22 21:12:12,366 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) [2024-11-22 21:12:12,366 INFO L276 IsEmpty]: Start isEmpty. Operand 1781 states and 2413 transitions. [2024-11-22 21:12:12,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-22 21:12:12,367 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:12:12,368 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:12:12,372 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 [2024-11-22 21:12:12,568 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 [2024-11-22 21:12:12,569 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-22 21:12:12,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:12:12,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1177229704, now seen corresponding path program 1 times [2024-11-22 21:12:12,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:12:12,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1474913093] [2024-11-22 21:12:12,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:12:12,570 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 [2024-11-22 21:12:12,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:12:12,574 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) [2024-11-22 21:12:12,575 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 [2024-11-22 21:12:12,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:12:12,755 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 21:12:12,757 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:12:12,762 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:12:12,763 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:12:12,763 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 21:12:12,767 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 [2024-11-22 21:12:12,806 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 21:12:12,807 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 [2024-11-22 21:12:12,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:12:12,819 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:12:12,819 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:12:12,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1474913093] [2024-11-22 21:12:12,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1474913093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:12:12,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:12:12,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 21:12:12,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484664203] [2024-11-22 21:12:12,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:12:12,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 21:12:12,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:12:12,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 21:12:12,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 21:12:12,820 INFO L87 Difference]: Start difference. First operand 1781 states and 2413 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:12:13,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:12:13,117 INFO L93 Difference]: Finished difference Result 2505 states and 2939 transitions. [2024-11-22 21:12:13,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 21:12:13,118 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-22 21:12:13,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:12:13,123 INFO L225 Difference]: With dead ends: 2505 [2024-11-22 21:12:13,123 INFO L226 Difference]: Without dead ends: 2505 [2024-11-22 21:12:13,123 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:12:13,124 INFO L432 NwaCegarLoop]: 1453 mSDtfsCounter, 1107 mSDsluCounter, 2643 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1121 SdHoareTripleChecker+Valid, 4096 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 21:12:13,124 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1121 Valid, 4096 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 21:12:13,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2505 states. [2024-11-22 21:12:13,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2505 to 1446. [2024-11-22 21:12:13,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1446 states, 888 states have (on average 1.9324324324324325) internal successors, (1716), 1423 states have internal predecessors, (1716), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-22 21:12:13,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1446 states to 1446 states and 1756 transitions. [2024-11-22 21:12:13,152 INFO L78 Accepts]: Start accepts. Automaton has 1446 states and 1756 transitions. Word has length 16 [2024-11-22 21:12:13,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:12:13,152 INFO L471 AbstractCegarLoop]: Abstraction has 1446 states and 1756 transitions. [2024-11-22 21:12:13,152 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:12:13,152 INFO L276 IsEmpty]: Start isEmpty. Operand 1446 states and 1756 transitions. [2024-11-22 21:12:13,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-22 21:12:13,153 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:12:13,153 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:12:13,161 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 [2024-11-22 21:12:13,353 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 [2024-11-22 21:12:13,354 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-22 21:12:13,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:12:13,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1057218028, now seen corresponding path program 1 times [2024-11-22 21:12:13,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:12:13,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1113761222] [2024-11-22 21:12:13,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:12:13,355 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 [2024-11-22 21:12:13,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:12:13,357 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) [2024-11-22 21:12:13,358 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 [2024-11-22 21:12:13,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:12:13,526 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 21:12:13,528 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:12:13,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:12:13,534 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:12:13,534 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:12:13,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1113761222] [2024-11-22 21:12:13,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1113761222] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:12:13,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:12:13,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 21:12:13,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463008638] [2024-11-22 21:12:13,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:12:13,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:12:13,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:12:13,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:12:13,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:12:13,536 INFO L87 Difference]: Start difference. First operand 1446 states and 1756 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2024-11-22 21:12:13,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:12:13,556 INFO L93 Difference]: Finished difference Result 1386 states and 1670 transitions. [2024-11-22 21:12:13,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:12:13,557 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 19 [2024-11-22 21:12:13,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:12:13,560 INFO L225 Difference]: With dead ends: 1386 [2024-11-22 21:12:13,560 INFO L226 Difference]: Without dead ends: 1386 [2024-11-22 21:12:13,560 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:12:13,561 INFO L432 NwaCegarLoop]: 1186 mSDtfsCounter, 71 mSDsluCounter, 1123 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 2309 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 [2024-11-22 21:12:13,561 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 2309 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 21:12:13,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1386 states. [2024-11-22 21:12:13,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1386 to 1386. [2024-11-22 21:12:13,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1386 states, 852 states have (on average 1.9131455399061033) internal successors, (1630), 1363 states have internal predecessors, (1630), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-22 21:12:13,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1386 states to 1386 states and 1670 transitions. [2024-11-22 21:12:13,579 INFO L78 Accepts]: Start accepts. Automaton has 1386 states and 1670 transitions. Word has length 19 [2024-11-22 21:12:13,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:12:13,579 INFO L471 AbstractCegarLoop]: Abstraction has 1386 states and 1670 transitions. [2024-11-22 21:12:13,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2024-11-22 21:12:13,580 INFO L276 IsEmpty]: Start isEmpty. Operand 1386 states and 1670 transitions. [2024-11-22 21:12:13,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-22 21:12:13,580 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:12:13,580 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] [2024-11-22 21:12:13,587 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 (10)] Ended with exit code 0 [2024-11-22 21:12:13,781 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 [2024-11-22 21:12:13,781 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-22 21:12:13,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:12:13,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1920722190, now seen corresponding path program 1 times [2024-11-22 21:12:13,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:12:13,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [347615985] [2024-11-22 21:12:13,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:12:13,782 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 [2024-11-22 21:12:13,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:12:13,786 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) [2024-11-22 21:12:13,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-11-22 21:12:13,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:12:13,981 INFO L255 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 21:12:13,984 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:12:13,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:12:13,995 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:12:13,995 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:12:13,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [347615985] [2024-11-22 21:12:13,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [347615985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:12:13,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:12:13,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 21:12:13,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724053012] [2024-11-22 21:12:13,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:12:13,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 21:12:13,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:12:13,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 21:12:13,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 21:12:13,997 INFO L87 Difference]: Start difference. First operand 1386 states and 1670 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2024-11-22 21:12:14,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:12:14,057 INFO L93 Difference]: Finished difference Result 1356 states and 1612 transitions. [2024-11-22 21:12:14,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 21:12:14,058 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 21 [2024-11-22 21:12:14,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:12:14,063 INFO L225 Difference]: With dead ends: 1356 [2024-11-22 21:12:14,063 INFO L226 Difference]: Without dead ends: 1356 [2024-11-22 21:12:14,063 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:12:14,063 INFO L432 NwaCegarLoop]: 1141 mSDtfsCounter, 48 mSDsluCounter, 2256 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 3397 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 [2024-11-22 21:12:14,064 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 3397 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 21:12:14,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1356 states. [2024-11-22 21:12:14,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1356 to 1356. [2024-11-22 21:12:14,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1356 states, 836 states have (on average 1.8803827751196172) internal successors, (1572), 1333 states have internal predecessors, (1572), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-22 21:12:14,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1356 states to 1356 states and 1612 transitions. [2024-11-22 21:12:14,092 INFO L78 Accepts]: Start accepts. Automaton has 1356 states and 1612 transitions. Word has length 21 [2024-11-22 21:12:14,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:12:14,092 INFO L471 AbstractCegarLoop]: Abstraction has 1356 states and 1612 transitions. [2024-11-22 21:12:14,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2024-11-22 21:12:14,093 INFO L276 IsEmpty]: Start isEmpty. Operand 1356 states and 1612 transitions. [2024-11-22 21:12:14,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-22 21:12:14,095 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:12:14,095 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] [2024-11-22 21:12:14,104 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 [2024-11-22 21:12:14,299 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 [2024-11-22 21:12:14,300 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-22 21:12:14,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:12:14,301 INFO L85 PathProgramCache]: Analyzing trace with hash -956254243, now seen corresponding path program 1 times [2024-11-22 21:12:14,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:12:14,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1256515081] [2024-11-22 21:12:14,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:12:14,302 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 [2024-11-22 21:12:14,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:12:14,305 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) [2024-11-22 21:12:14,306 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 [2024-11-22 21:12:14,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:12:14,490 INFO L255 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-22 21:12:14,493 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:12:14,503 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-22 21:12:14,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:12:14,657 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:12:14,657 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:12:14,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1256515081] [2024-11-22 21:12:14,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1256515081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:12:14,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:12:14,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 21:12:14,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146173690] [2024-11-22 21:12:14,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:12:14,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 21:12:14,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:12:14,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 21:12:14,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:12:14,659 INFO L87 Difference]: Start difference. First operand 1356 states and 1612 transitions. Second operand has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 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) [2024-11-22 21:12:17,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:12:17,268 INFO L93 Difference]: Finished difference Result 1909 states and 2292 transitions. [2024-11-22 21:12:17,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 21:12:17,268 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 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 35 [2024-11-22 21:12:17,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:12:17,273 INFO L225 Difference]: With dead ends: 1909 [2024-11-22 21:12:17,273 INFO L226 Difference]: Without dead ends: 1909 [2024-11-22 21:12:17,273 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 21:12:17,273 INFO L432 NwaCegarLoop]: 1387 mSDtfsCounter, 594 mSDsluCounter, 2271 mSDsCounter, 0 mSdLazyCounter, 2304 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 3658 SdHoareTripleChecker+Invalid, 2308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-22 21:12:17,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [596 Valid, 3658 Invalid, 2308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2304 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-22 21:12:17,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1909 states. [2024-11-22 21:12:17,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1909 to 1352. [2024-11-22 21:12:17,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1352 states, 836 states have (on average 1.8708133971291867) internal successors, (1564), 1329 states have internal predecessors, (1564), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-22 21:12:17,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 1604 transitions. [2024-11-22 21:12:17,289 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 1604 transitions. Word has length 35 [2024-11-22 21:12:17,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:12:17,290 INFO L471 AbstractCegarLoop]: Abstraction has 1352 states and 1604 transitions. [2024-11-22 21:12:17,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 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) [2024-11-22 21:12:17,290 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 1604 transitions. [2024-11-22 21:12:17,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-22 21:12:17,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:12:17,292 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] [2024-11-22 21:12:17,300 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2024-11-22 21:12:17,492 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 [2024-11-22 21:12:17,493 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-22 21:12:17,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:12:17,494 INFO L85 PathProgramCache]: Analyzing trace with hash -956254244, now seen corresponding path program 1 times [2024-11-22 21:12:17,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:12:17,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [945451732] [2024-11-22 21:12:17,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:12:17,495 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 [2024-11-22 21:12:17,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:12:17,497 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) [2024-11-22 21:12:17,498 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 [2024-11-22 21:12:17,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:12:17,696 INFO L255 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 21:12:17,699 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:12:17,705 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 [2024-11-22 21:12:17,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:12:17,776 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:12:17,776 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:12:17,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [945451732] [2024-11-22 21:12:17,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [945451732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:12:17,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:12:17,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 21:12:17,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576091161] [2024-11-22 21:12:17,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:12:17,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 21:12:17,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:12:17,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 21:12:17,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:12:17,778 INFO L87 Difference]: Start difference. First operand 1352 states and 1604 transitions. Second operand has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 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) [2024-11-22 21:12:19,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:12:19,682 INFO L93 Difference]: Finished difference Result 1778 states and 2151 transitions. [2024-11-22 21:12:19,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 21:12:19,682 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 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 35 [2024-11-22 21:12:19,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:12:19,687 INFO L225 Difference]: With dead ends: 1778 [2024-11-22 21:12:19,687 INFO L226 Difference]: Without dead ends: 1778 [2024-11-22 21:12:19,688 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 21:12:19,689 INFO L432 NwaCegarLoop]: 747 mSDtfsCounter, 810 mSDsluCounter, 1540 mSDsCounter, 0 mSdLazyCounter, 1870 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 813 SdHoareTripleChecker+Valid, 2287 SdHoareTripleChecker+Invalid, 1878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-22 21:12:19,689 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [813 Valid, 2287 Invalid, 1878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1870 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-22 21:12:19,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1778 states. [2024-11-22 21:12:19,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1778 to 1348. [2024-11-22 21:12:19,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1348 states, 836 states have (on average 1.861244019138756) internal successors, (1556), 1325 states have internal predecessors, (1556), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-22 21:12:19,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1348 states to 1348 states and 1596 transitions. [2024-11-22 21:12:19,717 INFO L78 Accepts]: Start accepts. Automaton has 1348 states and 1596 transitions. Word has length 35 [2024-11-22 21:12:19,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:12:19,717 INFO L471 AbstractCegarLoop]: Abstraction has 1348 states and 1596 transitions. [2024-11-22 21:12:19,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 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) [2024-11-22 21:12:19,717 INFO L276 IsEmpty]: Start isEmpty. Operand 1348 states and 1596 transitions. [2024-11-22 21:12:19,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-22 21:12:19,718 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:12:19,718 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] [2024-11-22 21:12:19,726 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-11-22 21:12:19,919 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 [2024-11-22 21:12:19,919 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-22 21:12:19,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:12:19,920 INFO L85 PathProgramCache]: Analyzing trace with hash 103975123, now seen corresponding path program 1 times [2024-11-22 21:12:19,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:12:19,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [441162239] [2024-11-22 21:12:19,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:12:19,920 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 [2024-11-22 21:12:19,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:12:19,924 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) [2024-11-22 21:12:19,925 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 [2024-11-22 21:12:20,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:12:20,179 INFO L255 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 21:12:20,180 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:12:20,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:12:20,225 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:12:20,225 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:12:20,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [441162239] [2024-11-22 21:12:20,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [441162239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:12:20,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:12:20,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 21:12:20,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333036147] [2024-11-22 21:12:20,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:12:20,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 21:12:20,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:12:20,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 21:12:20,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 21:12:20,227 INFO L87 Difference]: Start difference. First operand 1348 states and 1596 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:12:20,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:12:20,281 INFO L93 Difference]: Finished difference Result 1336 states and 1576 transitions. [2024-11-22 21:12:20,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 21:12:20,282 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-11-22 21:12:20,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:12:20,286 INFO L225 Difference]: With dead ends: 1336 [2024-11-22 21:12:20,286 INFO L226 Difference]: Without dead ends: 1336 [2024-11-22 21:12:20,286 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:12:20,287 INFO L432 NwaCegarLoop]: 1135 mSDtfsCounter, 21 mSDsluCounter, 2239 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 3374 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 [2024-11-22 21:12:20,287 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 3374 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 21:12:20,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1336 states. [2024-11-22 21:12:20,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1336 to 1336. [2024-11-22 21:12:20,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1336 states, 824 states have (on average 1.8640776699029127) internal successors, (1536), 1313 states have internal predecessors, (1536), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-22 21:12:20,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 1576 transitions. [2024-11-22 21:12:20,302 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 1576 transitions. Word has length 55 [2024-11-22 21:12:20,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:12:20,302 INFO L471 AbstractCegarLoop]: Abstraction has 1336 states and 1576 transitions. [2024-11-22 21:12:20,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:12:20,302 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 1576 transitions. [2024-11-22 21:12:20,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-22 21:12:20,303 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:12:20,303 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] [2024-11-22 21:12:20,312 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 [2024-11-22 21:12:20,504 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 [2024-11-22 21:12:20,504 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-22 21:12:20,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:12:20,505 INFO L85 PathProgramCache]: Analyzing trace with hash -635878753, now seen corresponding path program 1 times [2024-11-22 21:12:20,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:12:20,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [866328756] [2024-11-22 21:12:20,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:12:20,505 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 [2024-11-22 21:12:20,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:12:20,507 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) [2024-11-22 21:12:20,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-11-22 21:12:20,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:12:20,887 INFO L255 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-22 21:12:20,890 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:12:20,920 INFO L349 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2024-11-22 21:12:20,920 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 17 [2024-11-22 21:12:20,978 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-11-22 21:12:20,979 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 28 [2024-11-22 21:12:21,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:12:21,373 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:12:21,373 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:12:21,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [866328756] [2024-11-22 21:12:21,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [866328756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:12:21,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:12:21,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 21:12:21,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408821197] [2024-11-22 21:12:21,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:12:21,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 21:12:21,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:12:21,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 21:12:21,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-22 21:12:21,376 INFO L87 Difference]: Start difference. First operand 1336 states and 1576 transitions. Second operand has 6 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:12:24,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:12:24,389 INFO L93 Difference]: Finished difference Result 2445 states and 2881 transitions. [2024-11-22 21:12:24,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 21:12:24,390 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-11-22 21:12:24,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:12:24,395 INFO L225 Difference]: With dead ends: 2445 [2024-11-22 21:12:24,395 INFO L226 Difference]: Without dead ends: 2445 [2024-11-22 21:12:24,395 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2024-11-22 21:12:24,396 INFO L432 NwaCegarLoop]: 893 mSDtfsCounter, 1945 mSDsluCounter, 1813 mSDsCounter, 0 mSdLazyCounter, 1993 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1945 SdHoareTripleChecker+Valid, 2706 SdHoareTripleChecker+Invalid, 2025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-22 21:12:24,396 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1945 Valid, 2706 Invalid, 2025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1993 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-22 21:12:24,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2445 states. [2024-11-22 21:12:24,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2445 to 1785. [2024-11-22 21:12:24,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1785 states, 1257 states have (on average 1.847255369928401) internal successors, (2322), 1749 states have internal predecessors, (2322), 35 states have call successors, (35), 9 states have call predecessors, (35), 7 states have return successors, (31), 28 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-22 21:12:24,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1785 states to 1785 states and 2388 transitions. [2024-11-22 21:12:24,422 INFO L78 Accepts]: Start accepts. Automaton has 1785 states and 2388 transitions. Word has length 63 [2024-11-22 21:12:24,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:12:24,422 INFO L471 AbstractCegarLoop]: Abstraction has 1785 states and 2388 transitions. [2024-11-22 21:12:24,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:12:24,423 INFO L276 IsEmpty]: Start isEmpty. Operand 1785 states and 2388 transitions. [2024-11-22 21:12:24,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-22 21:12:24,423 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:12:24,424 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] [2024-11-22 21:12:24,435 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 [2024-11-22 21:12:24,624 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 [2024-11-22 21:12:24,624 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-22 21:12:24,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:12:24,625 INFO L85 PathProgramCache]: Analyzing trace with hash -635878752, now seen corresponding path program 1 times [2024-11-22 21:12:24,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:12:24,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2109857440] [2024-11-22 21:12:24,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:12:24,625 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 [2024-11-22 21:12:24,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:12:24,627 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) [2024-11-22 21:12:24,628 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 [2024-11-22 21:12:24,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:12:25,011 INFO L255 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-22 21:12:25,014 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:12:25,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 21:12:25,063 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 [2024-11-22 21:12:25,127 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2024-11-22 21:12:25,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2024-11-22 21:12:25,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:12:25,773 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:12:25,773 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:12:25,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2109857440] [2024-11-22 21:12:25,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2109857440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:12:25,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:12:25,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 21:12:25,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351775930] [2024-11-22 21:12:25,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:12:25,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 21:12:25,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:12:25,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 21:12:25,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 21:12:25,775 INFO L87 Difference]: Start difference. First operand 1785 states and 2388 transitions. Second operand has 6 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:12:27,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:12:27,684 INFO L93 Difference]: Finished difference Result 1790 states and 2394 transitions. [2024-11-22 21:12:27,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 21:12:27,684 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-11-22 21:12:27,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:12:27,688 INFO L225 Difference]: With dead ends: 1790 [2024-11-22 21:12:27,688 INFO L226 Difference]: Without dead ends: 1790 [2024-11-22 21:12:27,689 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-22 21:12:27,689 INFO L432 NwaCegarLoop]: 1130 mSDtfsCounter, 58 mSDsluCounter, 1253 mSDsCounter, 0 mSdLazyCounter, 1127 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 2383 SdHoareTripleChecker+Invalid, 1129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-22 21:12:27,689 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 2383 Invalid, 1129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1127 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-22 21:12:27,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1790 states. [2024-11-22 21:12:27,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1790 to 1790. [2024-11-22 21:12:27,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1790 states, 1261 states have (on average 1.84456780333069) internal successors, (2326), 1753 states have internal predecessors, (2326), 36 states have call successors, (36), 10 states have call predecessors, (36), 7 states have return successors, (32), 28 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-22 21:12:27,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1790 states to 1790 states and 2394 transitions. [2024-11-22 21:12:27,713 INFO L78 Accepts]: Start accepts. Automaton has 1790 states and 2394 transitions. Word has length 63 [2024-11-22 21:12:27,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:12:27,714 INFO L471 AbstractCegarLoop]: Abstraction has 1790 states and 2394 transitions. [2024-11-22 21:12:27,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:12:27,714 INFO L276 IsEmpty]: Start isEmpty. Operand 1790 states and 2394 transitions. [2024-11-22 21:12:27,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-22 21:12:27,715 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:12:27,715 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] [2024-11-22 21:12:27,728 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2024-11-22 21:12:27,916 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 [2024-11-22 21:12:27,916 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-22 21:12:27,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:12:27,917 INFO L85 PathProgramCache]: Analyzing trace with hash 735482981, now seen corresponding path program 1 times [2024-11-22 21:12:27,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:12:27,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [619053473] [2024-11-22 21:12:27,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:12:27,917 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 [2024-11-22 21:12:27,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:12:27,919 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) [2024-11-22 21:12:27,919 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 [2024-11-22 21:12:28,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:12:28,185 INFO L255 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 21:12:28,186 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:12:28,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:12:28,222 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:12:28,223 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:12:28,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [619053473] [2024-11-22 21:12:28,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [619053473] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:12:28,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:12:28,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 21:12:28,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677440923] [2024-11-22 21:12:28,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:12:28,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 21:12:28,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:12:28,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 21:12:28,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 21:12:28,224 INFO L87 Difference]: Start difference. First operand 1790 states and 2394 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:12:28,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:12:28,317 INFO L93 Difference]: Finished difference Result 1816 states and 2421 transitions. [2024-11-22 21:12:28,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 21:12:28,318 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-22 21:12:28,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:12:28,322 INFO L225 Difference]: With dead ends: 1816 [2024-11-22 21:12:28,323 INFO L226 Difference]: Without dead ends: 1816 [2024-11-22 21:12:28,323 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-22 21:12:28,323 INFO L432 NwaCegarLoop]: 1145 mSDtfsCounter, 15 mSDsluCounter, 4575 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 5720 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 21:12:28,324 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 5720 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 21:12:28,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1816 states. [2024-11-22 21:12:28,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1816 to 1814. [2024-11-22 21:12:28,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1814 states, 1279 states have (on average 1.836591086786552) internal successors, (2349), 1773 states have internal predecessors, (2349), 38 states have call successors, (38), 14 states have call predecessors, (38), 11 states have return successors, (34), 30 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-22 21:12:28,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1814 states to 1814 states and 2421 transitions. [2024-11-22 21:12:28,359 INFO L78 Accepts]: Start accepts. Automaton has 1814 states and 2421 transitions. Word has length 71 [2024-11-22 21:12:28,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:12:28,359 INFO L471 AbstractCegarLoop]: Abstraction has 1814 states and 2421 transitions. [2024-11-22 21:12:28,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:12:28,359 INFO L276 IsEmpty]: Start isEmpty. Operand 1814 states and 2421 transitions. [2024-11-22 21:12:28,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-22 21:12:28,360 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:12:28,360 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] [2024-11-22 21:12:28,369 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2024-11-22 21:12:28,561 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 [2024-11-22 21:12:28,561 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-22 21:12:28,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:12:28,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1006494928, now seen corresponding path program 1 times [2024-11-22 21:12:28,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:12:28,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [821801458] [2024-11-22 21:12:28,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:12:28,563 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 [2024-11-22 21:12:28,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:12:28,566 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) [2024-11-22 21:12:28,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-11-22 21:12:28,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:12:28,913 INFO L255 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 21:12:28,915 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:12:29,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:12:29,037 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:12:29,037 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:12:29,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [821801458] [2024-11-22 21:12:29,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [821801458] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:12:29,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:12:29,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 21:12:29,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119766795] [2024-11-22 21:12:29,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:12:29,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 21:12:29,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:12:29,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 21:12:29,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 21:12:29,039 INFO L87 Difference]: Start difference. First operand 1814 states and 2421 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-11-22 21:12:29,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:12:29,284 INFO L93 Difference]: Finished difference Result 1826 states and 2435 transitions. [2024-11-22 21:12:29,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 21:12:29,285 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 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 69 [2024-11-22 21:12:29,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:12:29,289 INFO L225 Difference]: With dead ends: 1826 [2024-11-22 21:12:29,290 INFO L226 Difference]: Without dead ends: 1826 [2024-11-22 21:12:29,290 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-22 21:12:29,290 INFO L432 NwaCegarLoop]: 1129 mSDtfsCounter, 22 mSDsluCounter, 4416 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 5545 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 21:12:29,291 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 5545 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 21:12:29,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1826 states. [2024-11-22 21:12:29,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1826 to 1817. [2024-11-22 21:12:29,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1817 states, 1281 states have (on average 1.8352849336455894) internal successors, (2351), 1775 states have internal predecessors, (2351), 38 states have call successors, (38), 14 states have call predecessors, (38), 12 states have return successors, (35), 30 states have call predecessors, (35), 34 states have call successors, (35) [2024-11-22 21:12:29,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1817 states to 1817 states and 2424 transitions. [2024-11-22 21:12:29,327 INFO L78 Accepts]: Start accepts. Automaton has 1817 states and 2424 transitions. Word has length 69 [2024-11-22 21:12:29,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:12:29,327 INFO L471 AbstractCegarLoop]: Abstraction has 1817 states and 2424 transitions. [2024-11-22 21:12:29,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-11-22 21:12:29,328 INFO L276 IsEmpty]: Start isEmpty. Operand 1817 states and 2424 transitions. [2024-11-22 21:12:29,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-22 21:12:29,328 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:12:29,328 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] [2024-11-22 21:12:29,338 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2024-11-22 21:12:29,529 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 [2024-11-22 21:12:29,530 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-22 21:12:29,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:12:29,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1237454463, now seen corresponding path program 1 times [2024-11-22 21:12:29,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:12:29,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [949476002] [2024-11-22 21:12:29,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:12:29,531 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 [2024-11-22 21:12:29,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:12:29,534 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) [2024-11-22 21:12:29,535 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 [2024-11-22 21:12:29,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:12:29,960 INFO L255 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 21:12:29,963 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:12:29,967 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 [2024-11-22 21:12:30,073 WARN L873 $PredicateComparison]: unable to prove that (exists ((|alt_malloc_#res.base| (_ BitVec 32))) (= (store |c_old(#valid)| |alt_malloc_#res.base| (_ bv1 1)) |c_#valid|)) is different from true [2024-11-22 21:12:30,101 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-11-22 21:12:30,102 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2024-11-22 21:12:30,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:12:30,112 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:12:30,113 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:12:30,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [949476002] [2024-11-22 21:12:30,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [949476002] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:12:30,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:12:30,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 21:12:30,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112873365] [2024-11-22 21:12:30,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:12:30,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 21:12:30,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:12:30,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 21:12:30,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2024-11-22 21:12:30,114 INFO L87 Difference]: Start difference. First operand 1817 states and 2424 transitions. Second operand has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 21:12:32,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:12:32,437 INFO L93 Difference]: Finished difference Result 2238 states and 2969 transitions. [2024-11-22 21:12:32,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 21:12:32,438 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 74 [2024-11-22 21:12:32,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:12:32,442 INFO L225 Difference]: With dead ends: 2238 [2024-11-22 21:12:32,442 INFO L226 Difference]: Without dead ends: 2238 [2024-11-22 21:12:32,443 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=20, Unknown=1, NotChecked=8, Total=42 [2024-11-22 21:12:32,443 INFO L432 NwaCegarLoop]: 710 mSDtfsCounter, 771 mSDsluCounter, 1474 mSDsCounter, 0 mSdLazyCounter, 1922 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 2184 SdHoareTripleChecker+Invalid, 3483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1538 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-22 21:12:32,444 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [774 Valid, 2184 Invalid, 3483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1922 Invalid, 0 Unknown, 1538 Unchecked, 2.3s Time] [2024-11-22 21:12:32,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2238 states. [2024-11-22 21:12:32,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2238 to 1816. [2024-11-22 21:12:32,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1816 states, 1281 states have (on average 1.8337236533957846) internal successors, (2349), 1774 states have internal predecessors, (2349), 38 states have call successors, (38), 14 states have call predecessors, (38), 12 states have return successors, (35), 30 states have call predecessors, (35), 34 states have call successors, (35) [2024-11-22 21:12:32,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1816 states to 1816 states and 2422 transitions. [2024-11-22 21:12:32,493 INFO L78 Accepts]: Start accepts. Automaton has 1816 states and 2422 transitions. Word has length 74 [2024-11-22 21:12:32,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:12:32,493 INFO L471 AbstractCegarLoop]: Abstraction has 1816 states and 2422 transitions. [2024-11-22 21:12:32,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 21:12:32,494 INFO L276 IsEmpty]: Start isEmpty. Operand 1816 states and 2422 transitions. [2024-11-22 21:12:32,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-22 21:12:32,494 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:12:32,495 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] [2024-11-22 21:12:32,507 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 [2024-11-22 21:12:32,695 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 [2024-11-22 21:12:32,696 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-22 21:12:32,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:12:32,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1237454464, now seen corresponding path program 1 times [2024-11-22 21:12:32,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:12:32,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1919664735] [2024-11-22 21:12:32,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:12:32,697 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 [2024-11-22 21:12:32,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:12:32,700 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) [2024-11-22 21:12:32,701 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 [2024-11-22 21:12:33,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:12:33,257 INFO L255 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-22 21:12:33,260 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:12:33,267 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 [2024-11-22 21:12:33,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-22 21:12:33,749 WARN L873 $PredicateComparison]: unable to prove that (exists ((|alt_malloc_#res.base| (_ BitVec 32))) (and (= (store |c_old(#length)| |alt_malloc_#res.base| (select |c_#length| |alt_malloc_#res.base|)) |c_#length|) (= (_ bv0 1) (select |c_old(#valid)| |alt_malloc_#res.base|)))) is different from true [2024-11-22 21:12:33,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 21:12:33,770 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 [2024-11-22 21:12:33,784 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-22 21:12:33,785 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 [2024-11-22 21:12:33,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:12:33,801 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:12:33,801 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:12:33,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1919664735] [2024-11-22 21:12:33,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1919664735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:12:33,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:12:33,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 21:12:33,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203962055] [2024-11-22 21:12:33,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:12:33,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 21:12:33,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:12:33,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 21:12:33,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=21, Unknown=1, NotChecked=8, Total=42 [2024-11-22 21:12:33,805 INFO L87 Difference]: Start difference. First operand 1816 states and 2422 transitions. Second operand has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 21:12:37,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:12:37,696 INFO L93 Difference]: Finished difference Result 2914 states and 3878 transitions. [2024-11-22 21:12:37,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 21:12:37,697 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 74 [2024-11-22 21:12:37,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:12:37,701 INFO L225 Difference]: With dead ends: 2914 [2024-11-22 21:12:37,701 INFO L226 Difference]: Without dead ends: 2914 [2024-11-22 21:12:37,702 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=28, Unknown=1, NotChecked=10, Total=56 [2024-11-22 21:12:37,702 INFO L432 NwaCegarLoop]: 1207 mSDtfsCounter, 1477 mSDsluCounter, 1634 mSDsCounter, 0 mSdLazyCounter, 3379 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1480 SdHoareTripleChecker+Valid, 2841 SdHoareTripleChecker+Invalid, 5429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 3379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2022 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-22 21:12:37,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1480 Valid, 2841 Invalid, 5429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 3379 Invalid, 0 Unknown, 2022 Unchecked, 3.8s Time] [2024-11-22 21:12:37,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2914 states. [2024-11-22 21:12:37,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2914 to 1808. [2024-11-22 21:12:37,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1808 states, 1281 states have (on average 1.8212334113973458) internal successors, (2333), 1766 states have internal predecessors, (2333), 38 states have call successors, (38), 14 states have call predecessors, (38), 12 states have return successors, (35), 30 states have call predecessors, (35), 34 states have call successors, (35) [2024-11-22 21:12:37,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1808 states to 1808 states and 2406 transitions. [2024-11-22 21:12:37,736 INFO L78 Accepts]: Start accepts. Automaton has 1808 states and 2406 transitions. Word has length 74 [2024-11-22 21:12:37,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:12:37,736 INFO L471 AbstractCegarLoop]: Abstraction has 1808 states and 2406 transitions. [2024-11-22 21:12:37,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 21:12:37,738 INFO L276 IsEmpty]: Start isEmpty. Operand 1808 states and 2406 transitions. [2024-11-22 21:12:37,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-22 21:12:37,738 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:12:37,738 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, 1, 1, 1, 1, 1, 1] [2024-11-22 21:12:37,752 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 [2024-11-22 21:12:37,939 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 [2024-11-22 21:12:37,939 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting alt_bzeroErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-22 21:12:37,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:12:37,940 INFO L85 PathProgramCache]: Analyzing trace with hash -948585261, now seen corresponding path program 1 times [2024-11-22 21:12:37,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:12:37,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [235945688] [2024-11-22 21:12:37,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:12:37,940 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 [2024-11-22 21:12:37,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:12:37,942 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) [2024-11-22 21:12:37,944 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 [2024-11-22 21:12:38,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:12:38,257 INFO L255 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-22 21:12:38,260 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:12:38,267 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 [2024-11-22 21:12:38,288 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 [2024-11-22 21:12:38,314 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 [2024-11-22 21:12:38,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:12:38,349 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:12:38,349 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:12:38,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [235945688] [2024-11-22 21:12:38,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [235945688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:12:38,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:12:38,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 21:12:38,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393530571] [2024-11-22 21:12:38,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:12:38,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 21:12:38,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:12:38,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 21:12:38,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 21:12:38,351 INFO L87 Difference]: Start difference. First operand 1808 states and 2406 transitions. Second operand has 8 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 21:12:41,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:12:41,055 INFO L93 Difference]: Finished difference Result 1823 states and 2422 transitions. [2024-11-22 21:12:41,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 21:12:41,056 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 81 [2024-11-22 21:12:41,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:12:41,059 INFO L225 Difference]: With dead ends: 1823 [2024-11-22 21:12:41,059 INFO L226 Difference]: Without dead ends: 1823 [2024-11-22 21:12:41,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-22 21:12:41,060 INFO L432 NwaCegarLoop]: 1132 mSDtfsCounter, 16 mSDsluCounter, 3731 mSDsCounter, 0 mSdLazyCounter, 3116 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 4863 SdHoareTripleChecker+Invalid, 3118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-22 21:12:41,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 4863 Invalid, 3118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3116 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-22 21:12:41,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1823 states. [2024-11-22 21:12:41,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1823 to 1822. [2024-11-22 21:12:41,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1822 states, 1293 states have (on average 1.8167053364269141) internal successors, (2349), 1778 states have internal predecessors, (2349), 38 states have call successors, (38), 16 states have call predecessors, (38), 14 states have return successors, (35), 30 states have call predecessors, (35), 34 states have call successors, (35) [2024-11-22 21:12:41,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1822 states to 1822 states and 2422 transitions. [2024-11-22 21:12:41,079 INFO L78 Accepts]: Start accepts. Automaton has 1822 states and 2422 transitions. Word has length 81 [2024-11-22 21:12:41,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:12:41,079 INFO L471 AbstractCegarLoop]: Abstraction has 1822 states and 2422 transitions. [2024-11-22 21:12:41,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 21:12:41,080 INFO L276 IsEmpty]: Start isEmpty. Operand 1822 states and 2422 transitions. [2024-11-22 21:12:41,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-22 21:12:41,080 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:12:41,080 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:12:41,091 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2024-11-22 21:12:41,282 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 [2024-11-22 21:12:41,282 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting alt_bzeroErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-22 21:12:41,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:12:41,283 INFO L85 PathProgramCache]: Analyzing trace with hash 658628057, now seen corresponding path program 1 times [2024-11-22 21:12:41,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:12:41,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [889354507] [2024-11-22 21:12:41,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:12:41,284 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 [2024-11-22 21:12:41,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:12:41,287 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) [2024-11-22 21:12:41,288 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 [2024-11-22 21:12:41,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:12:41,635 INFO L255 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-22 21:12:41,638 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:12:41,653 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 [2024-11-22 21:12:41,684 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 [2024-11-22 21:12:41,687 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 [2024-11-22 21:12:41,716 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 [2024-11-22 21:12:41,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:12:41,775 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:12:41,776 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:12:41,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [889354507] [2024-11-22 21:12:41,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [889354507] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:12:41,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:12:41,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 21:12:41,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461238744] [2024-11-22 21:12:41,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:12:41,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 21:12:41,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:12:41,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 21:12:41,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-22 21:12:41,777 INFO L87 Difference]: Start difference. First operand 1822 states and 2422 transitions. Second operand has 9 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 21:12:45,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:12:45,330 INFO L93 Difference]: Finished difference Result 1822 states and 2420 transitions. [2024-11-22 21:12:45,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 21:12:45,331 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 82 [2024-11-22 21:12:45,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:12:45,333 INFO L225 Difference]: With dead ends: 1822 [2024-11-22 21:12:45,333 INFO L226 Difference]: Without dead ends: 1822 [2024-11-22 21:12:45,333 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-22 21:12:45,333 INFO L432 NwaCegarLoop]: 1128 mSDtfsCounter, 13 mSDsluCounter, 4710 mSDsCounter, 0 mSdLazyCounter, 3279 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 5838 SdHoareTripleChecker+Invalid, 3280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-22 21:12:45,334 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 5838 Invalid, 3280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3279 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-22 21:12:45,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1822 states. [2024-11-22 21:12:45,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1822 to 1822. [2024-11-22 21:12:45,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1822 states, 1293 states have (on average 1.8151585460170148) internal successors, (2347), 1778 states have internal predecessors, (2347), 38 states have call successors, (38), 16 states have call predecessors, (38), 14 states have return successors, (35), 30 states have call predecessors, (35), 34 states have call successors, (35) [2024-11-22 21:12:45,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1822 states to 1822 states and 2420 transitions. [2024-11-22 21:12:45,351 INFO L78 Accepts]: Start accepts. Automaton has 1822 states and 2420 transitions. Word has length 82 [2024-11-22 21:12:45,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:12:45,352 INFO L471 AbstractCegarLoop]: Abstraction has 1822 states and 2420 transitions. [2024-11-22 21:12:45,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 21:12:45,352 INFO L276 IsEmpty]: Start isEmpty. Operand 1822 states and 2420 transitions. [2024-11-22 21:12:45,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-22 21:12:45,353 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:12:45,353 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:12:45,364 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 [2024-11-22 21:12:45,553 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 [2024-11-22 21:12:45,554 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-22 21:12:45,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:12:45,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1486914519, now seen corresponding path program 1 times [2024-11-22 21:12:45,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:12:45,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [212223133] [2024-11-22 21:12:45,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:12:45,555 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 [2024-11-22 21:12:45,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:12:45,556 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) [2024-11-22 21:12:45,557 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 [2024-11-22 21:12:45,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:12:45,861 INFO L255 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 21:12:45,864 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:12:45,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:12:45,892 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:12:45,892 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:12:45,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [212223133] [2024-11-22 21:12:45,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [212223133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:12:45,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:12:45,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 21:12:45,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937276471] [2024-11-22 21:12:45,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:12:45,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 21:12:45,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:12:45,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 21:12:45,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:12:45,893 INFO L87 Difference]: Start difference. First operand 1822 states and 2420 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 21:12:45,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:12:45,933 INFO L93 Difference]: Finished difference Result 1838 states and 2438 transitions. [2024-11-22 21:12:45,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 21:12:45,933 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 89 [2024-11-22 21:12:45,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:12:45,936 INFO L225 Difference]: With dead ends: 1838 [2024-11-22 21:12:45,936 INFO L226 Difference]: Without dead ends: 1832 [2024-11-22 21:12:45,937 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:12:45,937 INFO L432 NwaCegarLoop]: 1137 mSDtfsCounter, 3 mSDsluCounter, 3395 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 4532 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 21:12:45,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 4532 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 21:12:45,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1832 states. [2024-11-22 21:12:45,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1832 to 1832. [2024-11-22 21:12:45,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1832 states, 1301 states have (on average 1.8116833205226748) internal successors, (2357), 1788 states have internal predecessors, (2357), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (37), 30 states have call predecessors, (37), 34 states have call successors, (37) [2024-11-22 21:12:45,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1832 states to 1832 states and 2432 transitions. [2024-11-22 21:12:45,967 INFO L78 Accepts]: Start accepts. Automaton has 1832 states and 2432 transitions. Word has length 89 [2024-11-22 21:12:45,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:12:45,968 INFO L471 AbstractCegarLoop]: Abstraction has 1832 states and 2432 transitions. [2024-11-22 21:12:45,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 21:12:45,968 INFO L276 IsEmpty]: Start isEmpty. Operand 1832 states and 2432 transitions. [2024-11-22 21:12:45,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 21:12:45,969 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:12:45,969 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:12:45,981 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 [2024-11-22 21:12:46,169 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 [2024-11-22 21:12:46,170 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-22 21:12:46,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:12:46,171 INFO L85 PathProgramCache]: Analyzing trace with hash 400224857, now seen corresponding path program 1 times [2024-11-22 21:12:46,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:12:46,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [241058390] [2024-11-22 21:12:46,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:12:46,172 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 [2024-11-22 21:12:46,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:12:46,175 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) [2024-11-22 21:12:46,176 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 [2024-11-22 21:12:46,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:12:46,525 INFO L255 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 21:12:46,528 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:12:46,568 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:12:46,568 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 21:12:46,654 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:12:46,655 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:12:46,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [241058390] [2024-11-22 21:12:46,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [241058390] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 21:12:46,655 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-22 21:12:46,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-22 21:12:46,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549346673] [2024-11-22 21:12:46,655 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-22 21:12:46,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 21:12:46,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:12:46,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 21:12:46,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-22 21:12:46,656 INFO L87 Difference]: Start difference. First operand 1832 states and 2432 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-22 21:12:46,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:12:46,795 INFO L93 Difference]: Finished difference Result 1858 states and 2462 transitions. [2024-11-22 21:12:46,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 21:12:46,797 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 90 [2024-11-22 21:12:46,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:12:46,799 INFO L225 Difference]: With dead ends: 1858 [2024-11-22 21:12:46,799 INFO L226 Difference]: Without dead ends: 1846 [2024-11-22 21:12:46,799 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2024-11-22 21:12:46,800 INFO L432 NwaCegarLoop]: 1137 mSDtfsCounter, 17 mSDsluCounter, 5660 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 6797 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 21:12:46,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 6797 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 21:12:46,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1846 states. [2024-11-22 21:12:46,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1846 to 1840. [2024-11-22 21:12:46,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1840 states, 1309 states have (on average 1.8082505729564553) internal successors, (2367), 1796 states have internal predecessors, (2367), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (37), 30 states have call predecessors, (37), 34 states have call successors, (37) [2024-11-22 21:12:46,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1840 states to 1840 states and 2442 transitions. [2024-11-22 21:12:46,821 INFO L78 Accepts]: Start accepts. Automaton has 1840 states and 2442 transitions. Word has length 90 [2024-11-22 21:12:46,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:12:46,822 INFO L471 AbstractCegarLoop]: Abstraction has 1840 states and 2442 transitions. [2024-11-22 21:12:46,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-22 21:12:46,822 INFO L276 IsEmpty]: Start isEmpty. Operand 1840 states and 2442 transitions. [2024-11-22 21:12:46,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-22 21:12:46,823 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:12:46,823 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:12:46,836 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 (24)] Ended with exit code 0 [2024-11-22 21:12:47,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:12:47,024 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-22 21:12:47,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:12:47,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1962339241, now seen corresponding path program 2 times [2024-11-22 21:12:47,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:12:47,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [255734296] [2024-11-22 21:12:47,025 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 21:12:47,025 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 [2024-11-22 21:12:47,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:12:47,026 INFO L229 MonitoredProcess]: Starting monitored process 25 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) [2024-11-22 21:12:47,027 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 (25)] Waiting until timeout for monitored process [2024-11-22 21:12:47,649 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 21:12:47,650 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:12:47,662 INFO L255 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-22 21:12:47,664 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:12:47,749 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:12:47,749 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 21:12:47,984 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:12:47,985 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:12:47,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [255734296] [2024-11-22 21:12:47,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [255734296] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 21:12:47,985 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-22 21:12:47,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2024-11-22 21:12:47,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264757848] [2024-11-22 21:12:47,986 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-22 21:12:47,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-22 21:12:47,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:12:47,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-22 21:12:47,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2024-11-22 21:12:47,988 INFO L87 Difference]: Start difference. First operand 1840 states and 2442 transitions. Second operand has 16 states, 16 states have (on average 6.0625) internal successors, (97), 16 states have internal predecessors, (97), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-22 21:12:48,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:12:48,477 INFO L93 Difference]: Finished difference Result 1876 states and 2492 transitions. [2024-11-22 21:12:48,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-22 21:12:48,478 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.0625) internal successors, (97), 16 states have internal predecessors, (97), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 93 [2024-11-22 21:12:48,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:12:48,482 INFO L225 Difference]: With dead ends: 1876 [2024-11-22 21:12:48,482 INFO L226 Difference]: Without dead ends: 1864 [2024-11-22 21:12:48,482 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=248, Invalid=454, Unknown=0, NotChecked=0, Total=702 [2024-11-22 21:12:48,483 INFO L432 NwaCegarLoop]: 1137 mSDtfsCounter, 34 mSDsluCounter, 6798 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 7935 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 21:12:48,487 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 7935 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 21:12:48,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1864 states. [2024-11-22 21:12:48,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1864 to 1858. [2024-11-22 21:12:48,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1858 states, 1327 states have (on average 1.8018085908063302) internal successors, (2391), 1814 states have internal predecessors, (2391), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (37), 30 states have call predecessors, (37), 34 states have call successors, (37) [2024-11-22 21:12:48,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1858 states to 1858 states and 2466 transitions. [2024-11-22 21:12:48,516 INFO L78 Accepts]: Start accepts. Automaton has 1858 states and 2466 transitions. Word has length 93 [2024-11-22 21:12:48,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:12:48,518 INFO L471 AbstractCegarLoop]: Abstraction has 1858 states and 2466 transitions. [2024-11-22 21:12:48,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.0625) internal successors, (97), 16 states have internal predecessors, (97), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-22 21:12:48,518 INFO L276 IsEmpty]: Start isEmpty. Operand 1858 states and 2466 transitions. [2024-11-22 21:12:48,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-22 21:12:48,519 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:12:48,519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:12:48,532 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2024-11-22 21:12:48,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:12:48,720 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-22 21:12:48,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:12:48,721 INFO L85 PathProgramCache]: Analyzing trace with hash 860812567, now seen corresponding path program 3 times [2024-11-22 21:12:48,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:12:48,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [882792688] [2024-11-22 21:12:48,722 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 21:12:48,722 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 [2024-11-22 21:12:48,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:12:48,726 INFO L229 MonitoredProcess]: Starting monitored process 26 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) [2024-11-22 21:12:48,727 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 (26)] Waiting until timeout for monitored process [2024-11-22 21:12:49,626 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-22 21:12:49,626 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:12:49,644 INFO L255 TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-22 21:12:49,647 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:12:49,814 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:12:49,814 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 21:12:50,333 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:12:50,333 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:12:50,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [882792688] [2024-11-22 21:12:50,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [882792688] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 21:12:50,333 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-22 21:12:50,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2024-11-22 21:12:50,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694195997] [2024-11-22 21:12:50,334 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-22 21:12:50,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-22 21:12:50,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:12:50,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-22 21:12:50,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=534, Unknown=0, NotChecked=0, Total=756 [2024-11-22 21:12:50,335 INFO L87 Difference]: Start difference. First operand 1858 states and 2466 transitions. Second operand has 28 states, 28 states have (on average 3.892857142857143) internal successors, (109), 28 states have internal predecessors, (109), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-22 21:12:52,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:12:52,038 INFO L93 Difference]: Finished difference Result 1912 states and 2550 transitions. [2024-11-22 21:12:52,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-22 21:12:52,038 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.892857142857143) internal successors, (109), 28 states have internal predecessors, (109), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 99 [2024-11-22 21:12:52,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:12:52,041 INFO L225 Difference]: With dead ends: 1912 [2024-11-22 21:12:52,042 INFO L226 Difference]: Without dead ends: 1894 [2024-11-22 21:12:52,042 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=854, Invalid=1696, Unknown=0, NotChecked=0, Total=2550 [2024-11-22 21:12:52,043 INFO L432 NwaCegarLoop]: 1137 mSDtfsCounter, 79 mSDsluCounter, 13597 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 14734 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 21:12:52,043 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 14734 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 21:12:52,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1894 states. [2024-11-22 21:12:52,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1894 to 1894. [2024-11-22 21:12:52,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1894 states, 1363 states have (on average 1.7879677182685254) internal successors, (2437), 1850 states have internal predecessors, (2437), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (37), 30 states have call predecessors, (37), 34 states have call successors, (37) [2024-11-22 21:12:52,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1894 states to 1894 states and 2512 transitions. [2024-11-22 21:12:52,063 INFO L78 Accepts]: Start accepts. Automaton has 1894 states and 2512 transitions. Word has length 99 [2024-11-22 21:12:52,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:12:52,064 INFO L471 AbstractCegarLoop]: Abstraction has 1894 states and 2512 transitions. [2024-11-22 21:12:52,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.892857142857143) internal successors, (109), 28 states have internal predecessors, (109), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-22 21:12:52,064 INFO L276 IsEmpty]: Start isEmpty. Operand 1894 states and 2512 transitions. [2024-11-22 21:12:52,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-22 21:12:52,066 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:12:52,066 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:12:52,081 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 (26)] Ended with exit code 0 [2024-11-22 21:12:52,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:12:52,271 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-22 21:12:52,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:12:52,272 INFO L85 PathProgramCache]: Analyzing trace with hash -451672425, now seen corresponding path program 4 times [2024-11-22 21:12:52,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:12:52,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1207098959] [2024-11-22 21:12:52,273 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 21:12:52,273 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 [2024-11-22 21:12:52,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:12:52,277 INFO L229 MonitoredProcess]: Starting monitored process 27 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) [2024-11-22 21:12:52,278 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 (27)] Waiting until timeout for monitored process [2024-11-22 21:12:53,001 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 21:12:53,002 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:12:53,018 INFO L255 TraceCheckSpWp]: Trace formula consists of 685 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-22 21:12:53,021 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:12:53,457 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:12:53,457 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 21:12:54,785 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:12:54,785 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:12:54,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1207098959] [2024-11-22 21:12:54,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1207098959] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 21:12:54,786 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-22 21:12:54,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 52 [2024-11-22 21:12:54,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312565591] [2024-11-22 21:12:54,786 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-22 21:12:54,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-11-22 21:12:54,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 21:12:54,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-11-22 21:12:54,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=725, Invalid=1927, Unknown=0, NotChecked=0, Total=2652 [2024-11-22 21:12:54,789 INFO L87 Difference]: Start difference. First operand 1894 states and 2512 transitions. Second operand has 52 states, 52 states have (on average 2.5576923076923075) internal successors, (133), 52 states have internal predecessors, (133), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-22 21:13:01,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:13:01,709 INFO L93 Difference]: Finished difference Result 1980 states and 2662 transitions. [2024-11-22 21:13:01,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2024-11-22 21:13:01,710 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 2.5576923076923075) internal successors, (133), 52 states have internal predecessors, (133), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 111 [2024-11-22 21:13:01,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:13:01,713 INFO L225 Difference]: With dead ends: 1980 [2024-11-22 21:13:01,713 INFO L226 Difference]: Without dead ends: 1968 [2024-11-22 21:13:01,715 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1126 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=2955, Invalid=6357, Unknown=0, NotChecked=0, Total=9312 [2024-11-22 21:13:01,716 INFO L432 NwaCegarLoop]: 1137 mSDtfsCounter, 96 mSDsluCounter, 29434 mSDsCounter, 0 mSdLazyCounter, 1564 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 30571 SdHoareTripleChecker+Invalid, 1635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-22 21:13:01,717 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 30571 Invalid, 1635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1564 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-22 21:13:01,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1968 states. [2024-11-22 21:13:01,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1968 to 1962. [2024-11-22 21:13:01,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1962 states, 1431 states have (on average 1.7672955974842768) internal successors, (2529), 1918 states have internal predecessors, (2529), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (37), 30 states have call predecessors, (37), 34 states have call successors, (37) [2024-11-22 21:13:01,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2604 transitions. [2024-11-22 21:13:01,740 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2604 transitions. Word has length 111 [2024-11-22 21:13:01,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:13:01,741 INFO L471 AbstractCegarLoop]: Abstraction has 1962 states and 2604 transitions. [2024-11-22 21:13:01,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 2.5576923076923075) internal successors, (133), 52 states have internal predecessors, (133), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-22 21:13:01,741 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2604 transitions. [2024-11-22 21:13:01,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-22 21:13:01,742 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:13:01,742 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:13:01,757 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 (27)] Ended with exit code 0 [2024-11-22 21:13:01,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 21:13:01,943 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2024-11-22 21:13:01,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:13:01,943 INFO L85 PathProgramCache]: Analyzing trace with hash 508361047, now seen corresponding path program 5 times [2024-11-22 21:13:01,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 21:13:01,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [746498397] [2024-11-22 21:13:01,944 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-22 21:13:01,944 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 [2024-11-22 21:13:01,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 21:13:01,945 INFO L229 MonitoredProcess]: Starting monitored process 28 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) [2024-11-22 21:13:01,946 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 (28)] Waiting until timeout for monitored process [2024-11-22 21:13:03,198 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2024-11-22 21:13:03,198 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:13:03,229 INFO L255 TraceCheckSpWp]: Trace formula consists of 927 conjuncts, 65 conjuncts are in the unsatisfiable core [2024-11-22 21:13:03,240 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:13:03,245 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 [2024-11-22 21:13:03,398 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-22 21:13:03,399 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 [2024-11-22 21:13:03,426 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 [2024-11-22 21:13:03,501 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 [2024-11-22 21:13:04,666 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-22 21:13:04,667 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 [2024-11-22 21:13:04,711 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 [2024-11-22 21:13:04,749 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2024-11-22 21:13:04,749 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 21:13:05,172 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 21:13:05,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [746498397] [2024-11-22 21:13:05,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [746498397] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 21:13:05,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [525572497] [2024-11-22 21:13:05,173 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-22 21:13:05,173 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-22 21:13:05,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-22 21:13:05,175 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-22 21:13:05,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process