./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-2.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 72a3b80a468e10df778a3b8ff41e4c2b1e0b82c1005f056b209a19315511b1a5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 19:13:55,869 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 19:13:55,947 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-11 19:13:55,952 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 19:13:55,953 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 19:13:55,985 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 19:13:55,985 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 19:13:55,986 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 19:13:55,987 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 19:13:55,988 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 19:13:55,989 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 19:13:55,989 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 19:13:55,990 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 19:13:55,990 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 19:13:55,991 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 19:13:55,991 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 19:13:55,995 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 19:13:55,995 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 19:13:55,996 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 19:13:55,996 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 19:13:55,996 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 19:13:55,997 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 19:13:55,997 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 19:13:55,998 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 19:13:55,999 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 19:13:55,999 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 19:13:55,999 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 19:13:56,000 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 19:13:56,000 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 19:13:56,000 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 19:13:56,001 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 19:13:56,001 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 19:13:56,002 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 19:13:56,002 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:13:56,002 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 19:13:56,003 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 19:13:56,003 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 19:13:56,003 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 19:13:56,004 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 19:13:56,004 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 19:13:56,004 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 19:13:56,005 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 19:13:56,005 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72a3b80a468e10df778a3b8ff41e4c2b1e0b82c1005f056b209a19315511b1a5 [2024-10-11 19:13:56,255 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 19:13:56,282 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 19:13:56,285 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 19:13:56,286 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 19:13:56,287 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 19:13:56,288 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-2.i [2024-10-11 19:13:57,816 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 19:13:58,116 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 19:13:58,117 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-2.i [2024-10-11 19:13:58,142 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/b7ea915e2/c00c55c850a14d6ca380f4038b0f2a4e/FLAG01d2e19f2 [2024-10-11 19:13:58,154 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/b7ea915e2/c00c55c850a14d6ca380f4038b0f2a4e [2024-10-11 19:13:58,157 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 19:13:58,159 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 19:13:58,160 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 19:13:58,160 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 19:13:58,166 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 19:13:58,167 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:13:58" (1/1) ... [2024-10-11 19:13:58,167 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b7c7ab8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:13:58, skipping insertion in model container [2024-10-11 19:13:58,169 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:13:58" (1/1) ... [2024-10-11 19:13:58,229 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:13:58,803 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:13:58,817 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2024-10-11 19:13:58,819 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2eeca7f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:13:58, skipping insertion in model container [2024-10-11 19:13:58,819 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 19:13:58,820 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-10-11 19:13:58,822 INFO L158 Benchmark]: Toolchain (without parser) took 662.65ms. Allocated memory is still 159.4MB. Free memory was 102.2MB in the beginning and 79.1MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-11 19:13:58,823 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 159.4MB. Free memory is still 120.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 19:13:58,824 INFO L158 Benchmark]: CACSL2BoogieTranslator took 659.54ms. Allocated memory is still 159.4MB. Free memory was 101.8MB in the beginning and 79.1MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-11 19:13:58,825 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 159.4MB. Free memory is still 120.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 659.54ms. Allocated memory is still 159.4MB. Free memory was 101.8MB in the beginning and 79.1MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 736]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-2.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 72a3b80a468e10df778a3b8ff41e4c2b1e0b82c1005f056b209a19315511b1a5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 19:14:00,777 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 19:14:00,869 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-10-11 19:14:00,875 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 19:14:00,876 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 19:14:00,910 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 19:14:00,911 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 19:14:00,911 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 19:14:00,912 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 19:14:00,913 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 19:14:00,913 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 19:14:00,914 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 19:14:00,914 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 19:14:00,915 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 19:14:00,916 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 19:14:00,917 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 19:14:00,917 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 19:14:00,917 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 19:14:00,918 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 19:14:00,918 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 19:14:00,921 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 19:14:00,922 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 19:14:00,922 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 19:14:00,922 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 19:14:00,923 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 19:14:00,923 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-11 19:14:00,923 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 19:14:00,923 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-11 19:14:00,923 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 19:14:00,924 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 19:14:00,924 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 19:14:00,924 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 19:14:00,924 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 19:14:00,925 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 19:14:00,925 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 19:14:00,925 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:14:00,927 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 19:14:00,927 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 19:14:00,928 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-11 19:14:00,928 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-11 19:14:00,928 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 19:14:00,928 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 19:14:00,929 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 19:14:00,929 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 19:14:00,929 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-11 19:14:00,929 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72a3b80a468e10df778a3b8ff41e4c2b1e0b82c1005f056b209a19315511b1a5 [2024-10-11 19:14:01,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 19:14:01,288 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 19:14:01,291 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 19:14:01,292 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 19:14:01,293 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 19:14:01,295 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-2.i [2024-10-11 19:14:02,825 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 19:14:03,131 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 19:14:03,132 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-2.i [2024-10-11 19:14:03,152 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/fd0f81cb0/5a9a71f114654b609afe428d2d1a9b12/FLAGdfe4561c1 [2024-10-11 19:14:03,164 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/fd0f81cb0/5a9a71f114654b609afe428d2d1a9b12 [2024-10-11 19:14:03,166 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 19:14:03,167 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 19:14:03,168 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 19:14:03,168 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 19:14:03,173 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 19:14:03,173 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:14:03" (1/1) ... [2024-10-11 19:14:03,174 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5af801c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:14:03, skipping insertion in model container [2024-10-11 19:14:03,175 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:14:03" (1/1) ... [2024-10-11 19:14:03,228 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:14:03,781 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:14:03,804 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-10-11 19:14:03,814 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:14:03,933 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:14:03,940 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 19:14:04,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:14:04,087 INFO L204 MainTranslator]: Completed translation [2024-10-11 19:14:04,087 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:14:04 WrapperNode [2024-10-11 19:14:04,087 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 19:14:04,088 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 19:14:04,088 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 19:14:04,088 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 19:14:04,095 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:14:04" (1/1) ... [2024-10-11 19:14:04,137 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:14:04" (1/1) ... [2024-10-11 19:14:04,250 INFO L138 Inliner]: procedures = 180, calls = 330, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1236 [2024-10-11 19:14:04,251 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 19:14:04,253 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 19:14:04,253 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 19:14:04,253 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 19:14:04,264 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:14:04" (1/1) ... [2024-10-11 19:14:04,264 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:14:04" (1/1) ... [2024-10-11 19:14:04,285 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:14:04" (1/1) ... [2024-10-11 19:14:04,403 INFO L175 MemorySlicer]: Split 303 memory accesses to 3 slices as follows [2, 34, 267]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 62 writes are split as follows [0, 4, 58]. [2024-10-11 19:14:04,406 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:14:04" (1/1) ... [2024-10-11 19:14:04,406 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:14:04" (1/1) ... [2024-10-11 19:14:04,455 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:14:04" (1/1) ... [2024-10-11 19:14:04,468 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:14:04" (1/1) ... [2024-10-11 19:14:04,481 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:14:04" (1/1) ... [2024-10-11 19:14:04,490 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:14:04" (1/1) ... [2024-10-11 19:14:04,508 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 19:14:04,510 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 19:14:04,510 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 19:14:04,510 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 19:14:04,511 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:14:04" (1/1) ... [2024-10-11 19:14:04,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:14:04,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:14:04,550 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 19:14:04,553 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 19:14:04,592 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-10-11 19:14:04,592 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-10-11 19:14:04,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-10-11 19:14:04,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-10-11 19:14:04,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-10-11 19:14:04,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-11 19:14:04,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-11 19:14:04,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-11 19:14:04,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-11 19:14:04,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-11 19:14:04,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-10-11 19:14:04,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-10-11 19:14:04,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-10-11 19:14:04,596 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-10-11 19:14:04,596 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-10-11 19:14:04,596 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-10-11 19:14:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-11 19:14:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 19:14:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-11 19:14:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-11 19:14:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-11 19:14:04,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 19:14:04,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-11 19:14:04,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-11 19:14:04,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-11 19:14:04,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 19:14:04,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-11 19:14:04,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-11 19:14:04,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-11 19:14:04,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-11 19:14:04,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-11 19:14:04,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-11 19:14:04,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 19:14:04,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 19:14:04,847 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 19:14:04,850 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 19:14:04,874 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-11 19:14:04,911 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-11 19:14:04,933 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-11 19:14:09,028 INFO L? ?]: Removed 1313 outVars from TransFormulas that were not future-live. [2024-10-11 19:14:09,028 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 19:14:09,224 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 19:14:09,224 INFO L314 CfgBuilder]: Removed 72 assume(true) statements. [2024-10-11 19:14:09,225 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:14:09 BoogieIcfgContainer [2024-10-11 19:14:09,225 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 19:14:09,227 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 19:14:09,227 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 19:14:09,231 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 19:14:09,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 07:14:03" (1/3) ... [2024-10-11 19:14:09,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d467582 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:14:09, skipping insertion in model container [2024-10-11 19:14:09,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:14:04" (2/3) ... [2024-10-11 19:14:09,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d467582 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:14:09, skipping insertion in model container [2024-10-11 19:14:09,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:14:09" (3/3) ... [2024-10-11 19:14:09,234 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test3-2.i [2024-10-11 19:14:09,252 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 19:14:09,253 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 632 error locations. [2024-10-11 19:14:09,351 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 19:14:09,357 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;@6437dd2c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 19:14:09,357 INFO L334 AbstractCegarLoop]: Starting to check reachability of 632 error locations. [2024-10-11 19:14:09,364 INFO L276 IsEmpty]: Start isEmpty. Operand has 1154 states, 511 states have (on average 2.522504892367906) internal successors, (1289), 1147 states have internal predecessors, (1289), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-11 19:14:09,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-10-11 19:14:09,371 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:14:09,372 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-10-11 19:14:09,372 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-10-11 19:14:09,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:14:09,377 INFO L85 PathProgramCache]: Analyzing trace with hash 64272, now seen corresponding path program 1 times [2024-10-11 19:14:09,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:14:09,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1477801750] [2024-10-11 19:14:09,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:14:09,387 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:14:09,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:14:09,388 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:14:09,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-11 19:14:09,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:14:09,546 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 19:14:09,553 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:14:09,599 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-11 19:14:09,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:09,620 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:14:09,621 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:14:09,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1477801750] [2024-10-11 19:14:09,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1477801750] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:14:09,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:14:09,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 19:14:09,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182195476] [2024-10-11 19:14:09,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:14:09,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:14:09,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:14:09,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:14:09,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:14:09,700 INFO L87 Difference]: Start difference. First operand has 1154 states, 511 states have (on average 2.522504892367906) internal successors, (1289), 1147 states have internal predecessors, (1289), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:11,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:14:11,759 INFO L93 Difference]: Finished difference Result 1313 states and 1399 transitions. [2024-10-11 19:14:11,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:14:11,762 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2024-10-11 19:14:11,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:14:11,784 INFO L225 Difference]: With dead ends: 1313 [2024-10-11 19:14:11,784 INFO L226 Difference]: Without dead ends: 1312 [2024-10-11 19:14:11,786 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:14:11,789 INFO L432 NwaCegarLoop]: 643 mSDtfsCounter, 1064 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1072 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-11 19:14:11,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1072 Valid, 782 Invalid, 776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-11 19:14:11,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1312 states. [2024-10-11 19:14:11,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1312 to 1140. [2024-10-11 19:14:11,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1140 states, 514 states have (on average 2.332684824902724) internal successors, (1199), 1133 states have internal predecessors, (1199), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-11 19:14:11,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1140 states to 1140 states and 1217 transitions. [2024-10-11 19:14:11,910 INFO L78 Accepts]: Start accepts. Automaton has 1140 states and 1217 transitions. Word has length 2 [2024-10-11 19:14:11,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:14:11,914 INFO L471 AbstractCegarLoop]: Abstraction has 1140 states and 1217 transitions. [2024-10-11 19:14:11,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:11,915 INFO L276 IsEmpty]: Start isEmpty. Operand 1140 states and 1217 transitions. [2024-10-11 19:14:11,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-10-11 19:14:11,915 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:14:11,915 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-10-11 19:14:11,926 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-10-11 19:14:12,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:14:12,117 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-10-11 19:14:12,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:14:12,118 INFO L85 PathProgramCache]: Analyzing trace with hash 64273, now seen corresponding path program 1 times [2024-10-11 19:14:12,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:14:12,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1305868730] [2024-10-11 19:14:12,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:14:12,118 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:14:12,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:14:12,120 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:14:12,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-11 19:14:12,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:14:12,262 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 19:14:12,264 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:14:12,275 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 [2024-10-11 19:14:12,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:12,289 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:14:12,289 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:14:12,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1305868730] [2024-10-11 19:14:12,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1305868730] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:14:12,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:14:12,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 19:14:12,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472217029] [2024-10-11 19:14:12,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:14:12,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:14:12,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:14:12,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:14:12,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:14:12,293 INFO L87 Difference]: Start difference. First operand 1140 states and 1217 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:14,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:14:14,594 INFO L93 Difference]: Finished difference Result 1703 states and 1833 transitions. [2024-10-11 19:14:14,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:14:14,596 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2024-10-11 19:14:14,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:14:14,601 INFO L225 Difference]: With dead ends: 1703 [2024-10-11 19:14:14,602 INFO L226 Difference]: Without dead ends: 1703 [2024-10-11 19:14:14,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:14:14,603 INFO L432 NwaCegarLoop]: 855 mSDtfsCounter, 604 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 970 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 609 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-11 19:14:14,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [609 Valid, 1444 Invalid, 976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 970 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-11 19:14:14,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2024-10-11 19:14:14,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 1313. [2024-10-11 19:14:14,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1313 states, 688 states have (on average 2.3052325581395348) internal successors, (1586), 1306 states have internal predecessors, (1586), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-11 19:14:14,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1313 states to 1313 states and 1604 transitions. [2024-10-11 19:14:14,635 INFO L78 Accepts]: Start accepts. Automaton has 1313 states and 1604 transitions. Word has length 2 [2024-10-11 19:14:14,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:14:14,635 INFO L471 AbstractCegarLoop]: Abstraction has 1313 states and 1604 transitions. [2024-10-11 19:14:14,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:14,635 INFO L276 IsEmpty]: Start isEmpty. Operand 1313 states and 1604 transitions. [2024-10-11 19:14:14,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-11 19:14:14,636 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:14:14,636 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-11 19:14:14,639 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-10-11 19:14:14,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:14:14,838 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-10-11 19:14:14,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:14:14,839 INFO L85 PathProgramCache]: Analyzing trace with hash -772531558, now seen corresponding path program 1 times [2024-10-11 19:14:14,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:14:14,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [590438455] [2024-10-11 19:14:14,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:14:14,840 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:14:14,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:14:14,843 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:14:14,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-10-11 19:14:14,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:14:14,988 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 19:14:14,991 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:14:15,004 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-11 19:14:15,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-11 19:14:15,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 19:14:15,087 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-10-11 19:14:15,103 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-11 19:14:15,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-10-11 19:14:15,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:15,128 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:14:15,129 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:14:15,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [590438455] [2024-10-11 19:14:15,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [590438455] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:14:15,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:14:15,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:14:15,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031913654] [2024-10-11 19:14:15,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:14:15,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:14:15,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:14:15,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:14:15,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:14:15,131 INFO L87 Difference]: Start difference. First operand 1313 states and 1604 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:17,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:14:17,408 INFO L93 Difference]: Finished difference Result 1479 states and 1781 transitions. [2024-10-11 19:14:17,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:14:17,408 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-10-11 19:14:17,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:14:17,413 INFO L225 Difference]: With dead ends: 1479 [2024-10-11 19:14:17,413 INFO L226 Difference]: Without dead ends: 1479 [2024-10-11 19:14:17,414 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:14:17,415 INFO L432 NwaCegarLoop]: 333 mSDtfsCounter, 1342 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 1126 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1350 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 1143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-11 19:14:17,415 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1350 Valid, 413 Invalid, 1143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1126 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-11 19:14:17,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1479 states. [2024-10-11 19:14:17,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1479 to 1128. [2024-10-11 19:14:17,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1128 states, 514 states have (on average 2.307392996108949) internal successors, (1186), 1121 states have internal predecessors, (1186), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-11 19:14:17,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 1204 transitions. [2024-10-11 19:14:17,438 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 1204 transitions. Word has length 6 [2024-10-11 19:14:17,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:14:17,439 INFO L471 AbstractCegarLoop]: Abstraction has 1128 states and 1204 transitions. [2024-10-11 19:14:17,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:17,439 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 1204 transitions. [2024-10-11 19:14:17,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-11 19:14:17,440 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:14:17,440 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:14:17,447 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-10-11 19:14:17,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:14:17,641 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-10-11 19:14:17,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:14:17,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1821325480, now seen corresponding path program 1 times [2024-10-11 19:14:17,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:14:17,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [641186143] [2024-10-11 19:14:17,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:14:17,645 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:14:17,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:14:17,648 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:14:17,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-10-11 19:14:17,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:14:17,780 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 19:14:17,782 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:14:17,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-11 19:14:17,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:17,828 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:14:17,828 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:14:17,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [641186143] [2024-10-11 19:14:17,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [641186143] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:14:17,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:14:17,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:14:17,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088374139] [2024-10-11 19:14:17,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:14:17,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:14:17,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:14:17,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:14:17,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:14:17,830 INFO L87 Difference]: Start difference. First operand 1128 states and 1204 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:19,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:14:19,981 INFO L93 Difference]: Finished difference Result 1551 states and 1664 transitions. [2024-10-11 19:14:19,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:14:19,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-10-11 19:14:19,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:14:19,987 INFO L225 Difference]: With dead ends: 1551 [2024-10-11 19:14:19,988 INFO L226 Difference]: Without dead ends: 1551 [2024-10-11 19:14:19,989 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:14:19,990 INFO L432 NwaCegarLoop]: 1170 mSDtfsCounter, 623 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 978 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 1622 SdHoareTripleChecker+Invalid, 991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-11 19:14:19,990 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 1622 Invalid, 991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 978 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-11 19:14:19,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1551 states. [2024-10-11 19:14:20,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1551 to 1145. [2024-10-11 19:14:20,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1145 states, 541 states have (on average 2.299445471349353) internal successors, (1244), 1138 states have internal predecessors, (1244), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-11 19:14:20,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1145 states to 1145 states and 1262 transitions. [2024-10-11 19:14:20,016 INFO L78 Accepts]: Start accepts. Automaton has 1145 states and 1262 transitions. Word has length 7 [2024-10-11 19:14:20,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:14:20,017 INFO L471 AbstractCegarLoop]: Abstraction has 1145 states and 1262 transitions. [2024-10-11 19:14:20,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:20,018 INFO L276 IsEmpty]: Start isEmpty. Operand 1145 states and 1262 transitions. [2024-10-11 19:14:20,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-11 19:14:20,019 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:14:20,019 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:14:20,026 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-10-11 19:14:20,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:14:20,222 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-10-11 19:14:20,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:14:20,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1821325479, now seen corresponding path program 1 times [2024-10-11 19:14:20,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:14:20,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1205246922] [2024-10-11 19:14:20,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:14:20,223 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:14:20,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:14:20,230 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:14:20,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-10-11 19:14:20,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:14:20,350 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 19:14:20,352 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:14:20,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-11 19:14:20,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:20,382 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:14:20,382 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:14:20,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1205246922] [2024-10-11 19:14:20,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1205246922] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:14:20,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:14:20,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:14:20,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092548446] [2024-10-11 19:14:20,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:14:20,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:14:20,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:14:20,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:14:20,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:14:20,384 INFO L87 Difference]: Start difference. First operand 1145 states and 1262 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:21,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:14:21,859 INFO L93 Difference]: Finished difference Result 1444 states and 1587 transitions. [2024-10-11 19:14:21,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:14:21,860 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-10-11 19:14:21,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:14:21,865 INFO L225 Difference]: With dead ends: 1444 [2024-10-11 19:14:21,865 INFO L226 Difference]: Without dead ends: 1444 [2024-10-11 19:14:21,866 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:14:21,866 INFO L432 NwaCegarLoop]: 972 mSDtfsCounter, 842 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 904 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 1267 SdHoareTripleChecker+Invalid, 957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-11 19:14:21,867 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [850 Valid, 1267 Invalid, 957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 904 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-11 19:14:21,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1444 states. [2024-10-11 19:14:21,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1444 to 1096. [2024-10-11 19:14:21,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1096 states, 541 states have (on average 2.201478743068392) internal successors, (1191), 1089 states have internal predecessors, (1191), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-11 19:14:21,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1209 transitions. [2024-10-11 19:14:21,887 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1209 transitions. Word has length 7 [2024-10-11 19:14:21,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:14:21,888 INFO L471 AbstractCegarLoop]: Abstraction has 1096 states and 1209 transitions. [2024-10-11 19:14:21,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:21,888 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1209 transitions. [2024-10-11 19:14:21,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-11 19:14:21,889 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:14:21,889 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:14:21,893 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-10-11 19:14:22,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:14:22,090 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr519REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-10-11 19:14:22,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:14:22,090 INFO L85 PathProgramCache]: Analyzing trace with hash -425448758, now seen corresponding path program 1 times [2024-10-11 19:14:22,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:14:22,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [850398503] [2024-10-11 19:14:22,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:14:22,091 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:14:22,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:14:22,093 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:14:22,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-10-11 19:14:22,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:14:22,211 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 19:14:22,213 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:14:22,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:22,270 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:14:22,270 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:14:22,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [850398503] [2024-10-11 19:14:22,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [850398503] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:14:22,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:14:22,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:14:22,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535823953] [2024-10-11 19:14:22,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:14:22,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:14:22,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:14:22,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:14:22,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:14:22,272 INFO L87 Difference]: Start difference. First operand 1096 states and 1209 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:23,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:14:23,666 INFO L93 Difference]: Finished difference Result 1633 states and 1830 transitions. [2024-10-11 19:14:23,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:14:23,668 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2024-10-11 19:14:23,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:14:23,672 INFO L225 Difference]: With dead ends: 1633 [2024-10-11 19:14:23,673 INFO L226 Difference]: Without dead ends: 1633 [2024-10-11 19:14:23,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:14:23,673 INFO L432 NwaCegarLoop]: 1114 mSDtfsCounter, 572 mSDsluCounter, 1921 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 3035 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-11 19:14:23,674 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [572 Valid, 3035 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-11 19:14:23,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1633 states. [2024-10-11 19:14:23,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1633 to 1300. [2024-10-11 19:14:23,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1300 states, 745 states have (on average 2.161073825503356) internal successors, (1610), 1293 states have internal predecessors, (1610), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-11 19:14:23,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1300 states to 1300 states and 1628 transitions. [2024-10-11 19:14:23,699 INFO L78 Accepts]: Start accepts. Automaton has 1300 states and 1628 transitions. Word has length 10 [2024-10-11 19:14:23,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:14:23,699 INFO L471 AbstractCegarLoop]: Abstraction has 1300 states and 1628 transitions. [2024-10-11 19:14:23,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:23,699 INFO L276 IsEmpty]: Start isEmpty. Operand 1300 states and 1628 transitions. [2024-10-11 19:14:23,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-11 19:14:23,700 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:14:23,700 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:14:23,704 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-10-11 19:14:23,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:14:23,902 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr330REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-10-11 19:14:23,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:14:23,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1426101341, now seen corresponding path program 1 times [2024-10-11 19:14:23,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:14:23,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1781036613] [2024-10-11 19:14:23,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:14:23,904 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:14:23,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:14:23,907 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:14:23,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-10-11 19:14:24,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:14:24,042 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-11 19:14:24,044 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:14:24,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:24,054 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:14:24,054 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:14:24,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1781036613] [2024-10-11 19:14:24,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1781036613] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:14:24,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:14:24,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:14:24,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694604286] [2024-10-11 19:14:24,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:14:24,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:14:24,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:14:24,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:14:24,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:14:24,056 INFO L87 Difference]: Start difference. First operand 1300 states and 1628 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:24,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:14:24,556 INFO L93 Difference]: Finished difference Result 1246 states and 1548 transitions. [2024-10-11 19:14:24,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:14:24,558 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-10-11 19:14:24,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:14:24,562 INFO L225 Difference]: With dead ends: 1246 [2024-10-11 19:14:24,562 INFO L226 Difference]: Without dead ends: 1246 [2024-10-11 19:14:24,562 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:14:24,563 INFO L432 NwaCegarLoop]: 968 mSDtfsCounter, 61 mSDsluCounter, 926 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 1894 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-11 19:14:24,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 1894 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-11 19:14:24,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1246 states. [2024-10-11 19:14:24,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1246 to 1246. [2024-10-11 19:14:24,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1246 states, 715 states have (on average 2.13986013986014) internal successors, (1530), 1239 states have internal predecessors, (1530), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-11 19:14:24,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1246 states to 1246 states and 1548 transitions. [2024-10-11 19:14:24,587 INFO L78 Accepts]: Start accepts. Automaton has 1246 states and 1548 transitions. Word has length 12 [2024-10-11 19:14:24,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:14:24,587 INFO L471 AbstractCegarLoop]: Abstraction has 1246 states and 1548 transitions. [2024-10-11 19:14:24,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:24,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states and 1548 transitions. [2024-10-11 19:14:24,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-11 19:14:24,589 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:14:24,589 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:14:24,593 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-10-11 19:14:24,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:14:24,790 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr354REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-10-11 19:14:24,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:14:24,790 INFO L85 PathProgramCache]: Analyzing trace with hash -388795715, now seen corresponding path program 1 times [2024-10-11 19:14:24,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:14:24,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1547243684] [2024-10-11 19:14:24,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:14:24,791 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:14:24,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:14:24,792 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:14:24,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-10-11 19:14:24,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:14:24,907 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 19:14:24,908 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:14:24,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:24,923 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:14:24,924 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:14:24,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1547243684] [2024-10-11 19:14:24,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1547243684] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:14:24,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:14:24,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:14:24,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336846056] [2024-10-11 19:14:24,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:14:24,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:14:24,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:14:24,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:14:24,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:14:24,925 INFO L87 Difference]: Start difference. First operand 1246 states and 1548 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:25,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:14:25,585 INFO L93 Difference]: Finished difference Result 1230 states and 1504 transitions. [2024-10-11 19:14:25,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:14:25,586 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-10-11 19:14:25,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:14:25,589 INFO L225 Difference]: With dead ends: 1230 [2024-10-11 19:14:25,589 INFO L226 Difference]: Without dead ends: 1230 [2024-10-11 19:14:25,589 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:14:25,589 INFO L432 NwaCegarLoop]: 937 mSDtfsCounter, 45 mSDsluCounter, 1856 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 2793 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 19:14:25,590 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 2793 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 19:14:25,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1230 states. [2024-10-11 19:14:25,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1230 to 1230. [2024-10-11 19:14:25,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1230 states, 713 states have (on average 2.0841514726507713) internal successors, (1486), 1223 states have internal predecessors, (1486), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-11 19:14:25,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1230 states to 1230 states and 1504 transitions. [2024-10-11 19:14:25,607 INFO L78 Accepts]: Start accepts. Automaton has 1230 states and 1504 transitions. Word has length 14 [2024-10-11 19:14:25,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:14:25,607 INFO L471 AbstractCegarLoop]: Abstraction has 1230 states and 1504 transitions. [2024-10-11 19:14:25,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:25,607 INFO L276 IsEmpty]: Start isEmpty. Operand 1230 states and 1504 transitions. [2024-10-11 19:14:25,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-11 19:14:25,609 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:14:25,609 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:14:25,613 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-10-11 19:14:25,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:14:25,810 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr630ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-10-11 19:14:25,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:14:25,810 INFO L85 PathProgramCache]: Analyzing trace with hash -309780293, now seen corresponding path program 1 times [2024-10-11 19:14:25,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:14:25,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [548593969] [2024-10-11 19:14:25,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:14:25,811 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:14:25,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:14:25,813 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:14:25,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-10-11 19:14:25,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:14:25,977 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 19:14:25,979 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:14:25,985 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 19:14:25,986 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 19:14:25,986 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 19:14:25,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2024-10-11 19:14:26,041 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 19:14:26,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2024-10-11 19:14:26,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:26,057 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:14:26,057 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:14:26,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [548593969] [2024-10-11 19:14:26,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [548593969] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:14:26,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:14:26,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:14:26,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982048946] [2024-10-11 19:14:26,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:14:26,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:14:26,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:14:26,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:14:26,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:14:26,059 INFO L87 Difference]: Start difference. First operand 1230 states and 1504 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:27,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:14:27,244 INFO L93 Difference]: Finished difference Result 2187 states and 2569 transitions. [2024-10-11 19:14:27,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:14:27,245 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-10-11 19:14:27,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:14:27,250 INFO L225 Difference]: With dead ends: 2187 [2024-10-11 19:14:27,250 INFO L226 Difference]: Without dead ends: 2187 [2024-10-11 19:14:27,250 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:14:27,251 INFO L432 NwaCegarLoop]: 948 mSDtfsCounter, 997 mSDsluCounter, 1883 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1005 SdHoareTripleChecker+Valid, 2831 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-11 19:14:27,251 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1005 Valid, 2831 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-11 19:14:27,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2187 states. [2024-10-11 19:14:27,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2187 to 1229. [2024-10-11 19:14:27,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 712 states have (on average 2.0842696629213484) internal successors, (1484), 1222 states have internal predecessors, (1484), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-11 19:14:27,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 1502 transitions. [2024-10-11 19:14:27,274 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 1502 transitions. Word has length 15 [2024-10-11 19:14:27,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:14:27,274 INFO L471 AbstractCegarLoop]: Abstraction has 1229 states and 1502 transitions. [2024-10-11 19:14:27,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:27,274 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 1502 transitions. [2024-10-11 19:14:27,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-11 19:14:27,275 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:14:27,275 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:14:27,281 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-10-11 19:14:27,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:14:27,476 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-10-11 19:14:27,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:14:27,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1346334238, now seen corresponding path program 1 times [2024-10-11 19:14:27,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:14:27,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [479052697] [2024-10-11 19:14:27,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:14:27,477 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:14:27,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:14:27,480 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:14:27,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-10-11 19:14:27,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:14:27,659 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-11 19:14:27,661 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:14:27,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:27,676 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:14:27,676 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:14:27,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [479052697] [2024-10-11 19:14:27,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [479052697] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:14:27,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:14:27,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:14:27,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845917858] [2024-10-11 19:14:27,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:14:27,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:14:27,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:14:27,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:14:27,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:14:27,679 INFO L87 Difference]: Start difference. First operand 1229 states and 1502 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:28,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:14:28,296 INFO L93 Difference]: Finished difference Result 1175 states and 1422 transitions. [2024-10-11 19:14:28,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:14:28,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-10-11 19:14:28,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:14:28,300 INFO L225 Difference]: With dead ends: 1175 [2024-10-11 19:14:28,300 INFO L226 Difference]: Without dead ends: 1175 [2024-10-11 19:14:28,300 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:14:28,301 INFO L432 NwaCegarLoop]: 910 mSDtfsCounter, 61 mSDsluCounter, 868 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 1778 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 19:14:28,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 1778 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 19:14:28,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1175 states. [2024-10-11 19:14:28,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1175 to 1175. [2024-10-11 19:14:28,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1175 states, 682 states have (on average 2.058651026392962) internal successors, (1404), 1168 states have internal predecessors, (1404), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-11 19:14:28,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1175 states to 1175 states and 1422 transitions. [2024-10-11 19:14:28,319 INFO L78 Accepts]: Start accepts. Automaton has 1175 states and 1422 transitions. Word has length 15 [2024-10-11 19:14:28,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:14:28,319 INFO L471 AbstractCegarLoop]: Abstraction has 1175 states and 1422 transitions. [2024-10-11 19:14:28,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:28,319 INFO L276 IsEmpty]: Start isEmpty. Operand 1175 states and 1422 transitions. [2024-10-11 19:14:28,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-11 19:14:28,320 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:14:28,320 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:14:28,326 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-10-11 19:14:28,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:14:28,525 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-10-11 19:14:28,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:14:28,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1042043864, now seen corresponding path program 1 times [2024-10-11 19:14:28,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:14:28,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [269025415] [2024-10-11 19:14:28,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:14:28,526 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:14:28,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:14:28,527 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:14:28,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-10-11 19:14:28,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:14:28,694 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 19:14:28,696 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:14:28,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:28,716 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:14:28,717 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:14:28,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [269025415] [2024-10-11 19:14:28,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [269025415] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:14:28,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:14:28,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:14:28,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200500227] [2024-10-11 19:14:28,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:14:28,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:14:28,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:14:28,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:14:28,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:14:28,718 INFO L87 Difference]: Start difference. First operand 1175 states and 1422 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:29,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:14:29,513 INFO L93 Difference]: Finished difference Result 1159 states and 1378 transitions. [2024-10-11 19:14:29,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:14:29,515 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-10-11 19:14:29,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:14:29,517 INFO L225 Difference]: With dead ends: 1159 [2024-10-11 19:14:29,517 INFO L226 Difference]: Without dead ends: 1159 [2024-10-11 19:14:29,518 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:14:29,518 INFO L432 NwaCegarLoop]: 879 mSDtfsCounter, 45 mSDsluCounter, 1740 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 2619 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-11 19:14:29,518 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 2619 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-11 19:14:29,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2024-10-11 19:14:29,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 1159. [2024-10-11 19:14:29,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1159 states, 680 states have (on average 2.0) internal successors, (1360), 1152 states have internal predecessors, (1360), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-11 19:14:29,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1159 states to 1159 states and 1378 transitions. [2024-10-11 19:14:29,534 INFO L78 Accepts]: Start accepts. Automaton has 1159 states and 1378 transitions. Word has length 17 [2024-10-11 19:14:29,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:14:29,534 INFO L471 AbstractCegarLoop]: Abstraction has 1159 states and 1378 transitions. [2024-10-11 19:14:29,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:29,534 INFO L276 IsEmpty]: Start isEmpty. Operand 1159 states and 1378 transitions. [2024-10-11 19:14:29,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-11 19:14:29,536 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:14:29,536 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:14:29,542 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2024-10-11 19:14:29,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:14:29,741 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-10-11 19:14:29,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:14:29,741 INFO L85 PathProgramCache]: Analyzing trace with hash 806214118, now seen corresponding path program 1 times [2024-10-11 19:14:29,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:14:29,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [847339347] [2024-10-11 19:14:29,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:14:29,742 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:14:29,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:14:29,744 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:14:29,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-10-11 19:14:29,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:14:29,895 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 19:14:29,897 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:14:29,904 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-11 19:14:29,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:29,986 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:14:29,986 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:14:29,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [847339347] [2024-10-11 19:14:29,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [847339347] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:14:29,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:14:29,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:14:29,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518372616] [2024-10-11 19:14:29,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:14:29,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:14:29,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:14:29,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:14:29,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:14:29,987 INFO L87 Difference]: Start difference. First operand 1159 states and 1378 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:31,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:14:31,532 INFO L93 Difference]: Finished difference Result 1517 states and 1849 transitions. [2024-10-11 19:14:31,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:14:31,532 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2024-10-11 19:14:31,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:14:31,536 INFO L225 Difference]: With dead ends: 1517 [2024-10-11 19:14:31,536 INFO L226 Difference]: Without dead ends: 1517 [2024-10-11 19:14:31,536 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:14:31,537 INFO L432 NwaCegarLoop]: 574 mSDtfsCounter, 716 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 1301 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 1265 SdHoareTripleChecker+Invalid, 1309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-11 19:14:31,537 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [724 Valid, 1265 Invalid, 1309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1301 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-11 19:14:31,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1517 states. [2024-10-11 19:14:31,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1517 to 1155. [2024-10-11 19:14:31,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1155 states, 680 states have (on average 1.988235294117647) internal successors, (1352), 1148 states have internal predecessors, (1352), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-11 19:14:31,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 1370 transitions. [2024-10-11 19:14:31,553 INFO L78 Accepts]: Start accepts. Automaton has 1155 states and 1370 transitions. Word has length 31 [2024-10-11 19:14:31,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:14:31,553 INFO L471 AbstractCegarLoop]: Abstraction has 1155 states and 1370 transitions. [2024-10-11 19:14:31,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:31,553 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states and 1370 transitions. [2024-10-11 19:14:31,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-11 19:14:31,554 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:14:31,554 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:14:31,560 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-10-11 19:14:31,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:14:31,755 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-10-11 19:14:31,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:14:31,755 INFO L85 PathProgramCache]: Analyzing trace with hash 806214119, now seen corresponding path program 1 times [2024-10-11 19:14:31,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:14:31,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [245567545] [2024-10-11 19:14:31,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:14:31,756 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:14:31,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:14:31,759 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:14:31,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-10-11 19:14:31,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:14:31,939 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 19:14:31,942 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:14:31,949 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-11 19:14:32,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:32,112 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:14:32,113 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:14:32,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [245567545] [2024-10-11 19:14:32,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [245567545] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:14:32,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:14:32,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:14:32,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242577521] [2024-10-11 19:14:32,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:14:32,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:14:32,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:14:32,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:14:32,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:14:32,115 INFO L87 Difference]: Start difference. First operand 1155 states and 1370 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:34,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:14:34,498 INFO L93 Difference]: Finished difference Result 1623 states and 1932 transitions. [2024-10-11 19:14:34,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:14:34,499 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2024-10-11 19:14:34,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:14:34,503 INFO L225 Difference]: With dead ends: 1623 [2024-10-11 19:14:34,503 INFO L226 Difference]: Without dead ends: 1623 [2024-10-11 19:14:34,503 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:14:34,504 INFO L432 NwaCegarLoop]: 1076 mSDtfsCounter, 493 mSDsluCounter, 1091 mSDsCounter, 0 mSdLazyCounter, 1492 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 2167 SdHoareTripleChecker+Invalid, 1495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-11 19:14:34,504 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [493 Valid, 2167 Invalid, 1495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1492 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-11 19:14:34,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1623 states. [2024-10-11 19:14:34,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1623 to 1151. [2024-10-11 19:14:34,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1151 states, 680 states have (on average 1.9764705882352942) internal successors, (1344), 1144 states have internal predecessors, (1344), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-11 19:14:34,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1151 states to 1151 states and 1362 transitions. [2024-10-11 19:14:34,518 INFO L78 Accepts]: Start accepts. Automaton has 1151 states and 1362 transitions. Word has length 31 [2024-10-11 19:14:34,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:14:34,519 INFO L471 AbstractCegarLoop]: Abstraction has 1151 states and 1362 transitions. [2024-10-11 19:14:34,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:34,519 INFO L276 IsEmpty]: Start isEmpty. Operand 1151 states and 1362 transitions. [2024-10-11 19:14:34,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-10-11 19:14:34,531 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:14:34,532 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:14:34,540 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-10-11 19:14:34,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:14:34,732 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-10-11 19:14:34,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:14:34,733 INFO L85 PathProgramCache]: Analyzing trace with hash 411743650, now seen corresponding path program 1 times [2024-10-11 19:14:34,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:14:34,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [946254091] [2024-10-11 19:14:34,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:14:34,734 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:14:34,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:14:34,735 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:14:34,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-10-11 19:14:34,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:14:34,978 INFO L255 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 19:14:34,980 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:14:35,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:35,025 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:14:35,026 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:14:35,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [946254091] [2024-10-11 19:14:35,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [946254091] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:14:35,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:14:35,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:14:35,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918058171] [2024-10-11 19:14:35,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:14:35,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:14:35,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:14:35,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:14:35,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:14:35,028 INFO L87 Difference]: Start difference. First operand 1151 states and 1362 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:35,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:14:35,640 INFO L93 Difference]: Finished difference Result 1139 states and 1342 transitions. [2024-10-11 19:14:35,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:14:35,641 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2024-10-11 19:14:35,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:14:35,644 INFO L225 Difference]: With dead ends: 1139 [2024-10-11 19:14:35,644 INFO L226 Difference]: Without dead ends: 1139 [2024-10-11 19:14:35,644 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:14:35,644 INFO L432 NwaCegarLoop]: 873 mSDtfsCounter, 15 mSDsluCounter, 1729 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2602 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 19:14:35,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2602 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 19:14:35,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2024-10-11 19:14:35,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 1139. [2024-10-11 19:14:35,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1139 states, 668 states have (on average 1.9820359281437125) internal successors, (1324), 1132 states have internal predecessors, (1324), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-11 19:14:35,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1139 states to 1139 states and 1342 transitions. [2024-10-11 19:14:35,662 INFO L78 Accepts]: Start accepts. Automaton has 1139 states and 1342 transitions. Word has length 50 [2024-10-11 19:14:35,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:14:35,662 INFO L471 AbstractCegarLoop]: Abstraction has 1139 states and 1342 transitions. [2024-10-11 19:14:35,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:35,663 INFO L276 IsEmpty]: Start isEmpty. Operand 1139 states and 1342 transitions. [2024-10-11 19:14:35,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-11 19:14:35,665 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:14:35,665 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:14:35,673 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2024-10-11 19:14:35,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:14:35,867 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-10-11 19:14:35,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:14:35,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1777550175, now seen corresponding path program 1 times [2024-10-11 19:14:35,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:14:35,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2023586783] [2024-10-11 19:14:35,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:14:35,869 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:14:35,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:14:35,872 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:14:35,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-10-11 19:14:36,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:14:36,174 INFO L255 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 19:14:36,178 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:14:36,186 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-11 19:14:36,194 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-11 19:14:36,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 19:14:36,574 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-10-11 19:14:36,584 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-11 19:14:36,585 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-10-11 19:14:36,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:36,595 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:14:36,595 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:14:36,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2023586783] [2024-10-11 19:14:36,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2023586783] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:14:36,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:14:36,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:14:36,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419362596] [2024-10-11 19:14:36,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:14:36,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:14:36,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:14:36,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:14:36,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:14:36,596 INFO L87 Difference]: Start difference. First operand 1139 states and 1342 transitions. Second operand has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:38,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:14:38,301 INFO L93 Difference]: Finished difference Result 1455 states and 1775 transitions. [2024-10-11 19:14:38,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:14:38,302 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2024-10-11 19:14:38,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:14:38,306 INFO L225 Difference]: With dead ends: 1455 [2024-10-11 19:14:38,306 INFO L226 Difference]: Without dead ends: 1455 [2024-10-11 19:14:38,306 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:14:38,307 INFO L432 NwaCegarLoop]: 416 mSDtfsCounter, 1584 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 891 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1587 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-11 19:14:38,307 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1587 Valid, 633 Invalid, 937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 891 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-11 19:14:38,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1455 states. [2024-10-11 19:14:38,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1455 to 1074. [2024-10-11 19:14:38,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1074 states, 641 states have (on average 1.906396255850234) internal successors, (1222), 1067 states have internal predecessors, (1222), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-11 19:14:38,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1074 states to 1074 states and 1240 transitions. [2024-10-11 19:14:38,321 INFO L78 Accepts]: Start accepts. Automaton has 1074 states and 1240 transitions. Word has length 54 [2024-10-11 19:14:38,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:14:38,321 INFO L471 AbstractCegarLoop]: Abstraction has 1074 states and 1240 transitions. [2024-10-11 19:14:38,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:38,322 INFO L276 IsEmpty]: Start isEmpty. Operand 1074 states and 1240 transitions. [2024-10-11 19:14:38,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-11 19:14:38,322 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:14:38,322 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:14:38,331 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2024-10-11 19:14:38,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:14:38,523 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-10-11 19:14:38,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:14:38,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1918209140, now seen corresponding path program 1 times [2024-10-11 19:14:38,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:14:38,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1340040574] [2024-10-11 19:14:38,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:14:38,524 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:14:38,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:14:38,525 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:14:38,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-10-11 19:14:38,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:14:38,757 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 19:14:38,759 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:14:38,767 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-11 19:14:38,783 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-10-11 19:14:38,803 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-10-11 19:14:38,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:38,813 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:14:38,813 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:14:38,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1340040574] [2024-10-11 19:14:38,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1340040574] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:14:38,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:14:38,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:14:38,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584032571] [2024-10-11 19:14:38,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:14:38,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:14:38,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:14:38,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:14:38,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:14:38,815 INFO L87 Difference]: Start difference. First operand 1074 states and 1240 transitions. Second operand has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:40,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:14:40,613 INFO L93 Difference]: Finished difference Result 1073 states and 1239 transitions. [2024-10-11 19:14:40,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 19:14:40,613 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-10-11 19:14:40,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:14:40,616 INFO L225 Difference]: With dead ends: 1073 [2024-10-11 19:14:40,616 INFO L226 Difference]: Without dead ends: 1073 [2024-10-11 19:14:40,616 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:14:40,616 INFO L432 NwaCegarLoop]: 847 mSDtfsCounter, 2 mSDsluCounter, 1372 mSDsCounter, 0 mSdLazyCounter, 1573 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2219 SdHoareTripleChecker+Invalid, 1574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-11 19:14:40,617 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2219 Invalid, 1574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1573 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-11 19:14:40,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2024-10-11 19:14:40,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 1073. [2024-10-11 19:14:40,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1073 states, 641 states have (on average 1.9048361934477378) internal successors, (1221), 1066 states have internal predecessors, (1221), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-11 19:14:40,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1073 states to 1073 states and 1239 transitions. [2024-10-11 19:14:40,626 INFO L78 Accepts]: Start accepts. Automaton has 1073 states and 1239 transitions. Word has length 58 [2024-10-11 19:14:40,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:14:40,626 INFO L471 AbstractCegarLoop]: Abstraction has 1073 states and 1239 transitions. [2024-10-11 19:14:40,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:40,626 INFO L276 IsEmpty]: Start isEmpty. Operand 1073 states and 1239 transitions. [2024-10-11 19:14:40,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-11 19:14:40,627 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:14:40,627 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:14:40,635 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2024-10-11 19:14:40,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:14:40,827 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-10-11 19:14:40,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:14:40,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1918209141, now seen corresponding path program 1 times [2024-10-11 19:14:40,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:14:40,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [382502643] [2024-10-11 19:14:40,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:14:40,828 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:14:40,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:14:40,830 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:14:40,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-10-11 19:14:41,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:14:41,081 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-11 19:14:41,083 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:14:41,092 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-11 19:14:41,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-10-11 19:14:41,107 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-10-11 19:14:41,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-10-11 19:14:41,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:41,157 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:14:41,157 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:14:41,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [382502643] [2024-10-11 19:14:41,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [382502643] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:14:41,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:14:41,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:14:41,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924583448] [2024-10-11 19:14:41,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:14:41,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:14:41,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:14:41,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:14:41,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:14:41,159 INFO L87 Difference]: Start difference. First operand 1073 states and 1239 transitions. Second operand has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:43,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:14:43,214 INFO L93 Difference]: Finished difference Result 1072 states and 1238 transitions. [2024-10-11 19:14:43,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 19:14:43,214 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-10-11 19:14:43,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:14:43,217 INFO L225 Difference]: With dead ends: 1072 [2024-10-11 19:14:43,217 INFO L226 Difference]: Without dead ends: 1072 [2024-10-11 19:14:43,218 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:14:43,218 INFO L432 NwaCegarLoop]: 847 mSDtfsCounter, 1 mSDsluCounter, 1420 mSDsCounter, 0 mSdLazyCounter, 1522 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2267 SdHoareTripleChecker+Invalid, 1523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-11 19:14:43,218 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2267 Invalid, 1523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1522 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-11 19:14:43,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2024-10-11 19:14:43,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2024-10-11 19:14:43,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 640 states have (on average 1.90625) internal successors, (1220), 1065 states have internal predecessors, (1220), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-11 19:14:43,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1238 transitions. [2024-10-11 19:14:43,228 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1238 transitions. Word has length 58 [2024-10-11 19:14:43,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:14:43,228 INFO L471 AbstractCegarLoop]: Abstraction has 1072 states and 1238 transitions. [2024-10-11 19:14:43,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:43,228 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1238 transitions. [2024-10-11 19:14:43,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-11 19:14:43,229 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:14:43,229 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:14:43,236 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2024-10-11 19:14:43,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:14:43,429 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-10-11 19:14:43,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:14:43,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1975771832, now seen corresponding path program 1 times [2024-10-11 19:14:43,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:14:43,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1634183004] [2024-10-11 19:14:43,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:14:43,431 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:14:43,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:14:43,432 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:14:43,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-10-11 19:14:43,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:14:43,679 INFO L255 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 19:14:43,682 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:14:43,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:43,697 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:14:43,697 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:14:43,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1634183004] [2024-10-11 19:14:43,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1634183004] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:14:43,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:14:43,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:14:43,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875999581] [2024-10-11 19:14:43,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:14:43,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:14:43,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:14:43,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:14:43,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:14:43,699 INFO L87 Difference]: Start difference. First operand 1072 states and 1238 transitions. Second operand has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 19:14:44,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:14:44,280 INFO L93 Difference]: Finished difference Result 1074 states and 1241 transitions. [2024-10-11 19:14:44,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:14:44,281 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2024-10-11 19:14:44,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:14:44,287 INFO L225 Difference]: With dead ends: 1074 [2024-10-11 19:14:44,287 INFO L226 Difference]: Without dead ends: 1074 [2024-10-11 19:14:44,287 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:14:44,288 INFO L432 NwaCegarLoop]: 847 mSDtfsCounter, 0 mSDsluCounter, 1691 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2538 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 19:14:44,288 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2538 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 19:14:44,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2024-10-11 19:14:44,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 1074. [2024-10-11 19:14:44,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1074 states, 641 states have (on average 1.906396255850234) internal successors, (1222), 1067 states have internal predecessors, (1222), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-10-11 19:14:44,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1074 states to 1074 states and 1241 transitions. [2024-10-11 19:14:44,307 INFO L78 Accepts]: Start accepts. Automaton has 1074 states and 1241 transitions. Word has length 64 [2024-10-11 19:14:44,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:14:44,307 INFO L471 AbstractCegarLoop]: Abstraction has 1074 states and 1241 transitions. [2024-10-11 19:14:44,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 19:14:44,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1074 states and 1241 transitions. [2024-10-11 19:14:44,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-11 19:14:44,308 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:14:44,308 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:14:44,314 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2024-10-11 19:14:44,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:14:44,508 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-10-11 19:14:44,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:14:44,509 INFO L85 PathProgramCache]: Analyzing trace with hash -433665972, now seen corresponding path program 1 times [2024-10-11 19:14:44,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:14:44,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1673135521] [2024-10-11 19:14:44,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:14:44,510 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:14:44,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:14:44,511 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:14:44,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-10-11 19:14:44,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:14:44,832 INFO L255 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 19:14:44,834 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:14:44,854 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:44,854 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 19:14:44,910 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:44,910 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:14:44,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1673135521] [2024-10-11 19:14:44,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1673135521] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 19:14:44,911 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 19:14:44,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-10-11 19:14:44,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729697221] [2024-10-11 19:14:44,911 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 19:14:44,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 19:14:44,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:14:44,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 19:14:44,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-11 19:14:44,913 INFO L87 Difference]: Start difference. First operand 1074 states and 1241 transitions. Second operand has 8 states, 6 states have (on average 11.0) internal successors, (66), 8 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 19:14:45,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:14:45,820 INFO L93 Difference]: Finished difference Result 1083 states and 1255 transitions. [2024-10-11 19:14:45,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 19:14:45,823 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 11.0) internal successors, (66), 8 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 65 [2024-10-11 19:14:45,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:14:45,826 INFO L225 Difference]: With dead ends: 1083 [2024-10-11 19:14:45,826 INFO L226 Difference]: Without dead ends: 1083 [2024-10-11 19:14:45,827 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-10-11 19:14:45,827 INFO L432 NwaCegarLoop]: 846 mSDtfsCounter, 4 mSDsluCounter, 3377 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4223 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-11 19:14:45,828 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 4223 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-11 19:14:45,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2024-10-11 19:14:45,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 1082. [2024-10-11 19:14:45,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1082 states, 648 states have (on average 1.9058641975308641) internal successors, (1235), 1074 states have internal predecessors, (1235), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-10-11 19:14:45,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1254 transitions. [2024-10-11 19:14:45,842 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1254 transitions. Word has length 65 [2024-10-11 19:14:45,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:14:45,842 INFO L471 AbstractCegarLoop]: Abstraction has 1082 states and 1254 transitions. [2024-10-11 19:14:45,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 11.0) internal successors, (66), 8 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 19:14:45,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1254 transitions. [2024-10-11 19:14:45,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-11 19:14:45,843 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:14:45,843 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:14:45,852 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2024-10-11 19:14:46,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:14:46,048 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-10-11 19:14:46,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:14:46,048 INFO L85 PathProgramCache]: Analyzing trace with hash -367351880, now seen corresponding path program 2 times [2024-10-11 19:14:46,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:14:46,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [513504633] [2024-10-11 19:14:46,048 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 19:14:46,049 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:14:46,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:14:46,050 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:14:46,051 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-10-11 19:14:46,436 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 19:14:46,436 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 19:14:46,446 INFO L255 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 19:14:46,448 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:14:46,492 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:46,492 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 19:14:46,609 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:46,609 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:14:46,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [513504633] [2024-10-11 19:14:46,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [513504633] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 19:14:46,609 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 19:14:46,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-10-11 19:14:46,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586776985] [2024-10-11 19:14:46,610 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 19:14:46,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-11 19:14:46,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:14:46,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-11 19:14:46,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-10-11 19:14:46,612 INFO L87 Difference]: Start difference. First operand 1082 states and 1254 transitions. Second operand has 14 states, 12 states have (on average 6.0) internal successors, (72), 14 states have internal predecessors, (72), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 19:14:47,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:14:47,930 INFO L93 Difference]: Finished difference Result 1094 states and 1273 transitions. [2024-10-11 19:14:47,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-11 19:14:47,931 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 6.0) internal successors, (72), 14 states have internal predecessors, (72), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 68 [2024-10-11 19:14:47,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:14:47,935 INFO L225 Difference]: With dead ends: 1094 [2024-10-11 19:14:47,935 INFO L226 Difference]: Without dead ends: 1092 [2024-10-11 19:14:47,935 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2024-10-11 19:14:47,936 INFO L432 NwaCegarLoop]: 846 mSDtfsCounter, 7 mSDsluCounter, 4225 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5071 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-11 19:14:47,936 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5071 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-11 19:14:47,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2024-10-11 19:14:47,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 1091. [2024-10-11 19:14:47,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1091 states, 657 states have (on average 1.8980213089802132) internal successors, (1247), 1083 states have internal predecessors, (1247), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-10-11 19:14:47,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1091 states to 1091 states and 1266 transitions. [2024-10-11 19:14:47,949 INFO L78 Accepts]: Start accepts. Automaton has 1091 states and 1266 transitions. Word has length 68 [2024-10-11 19:14:47,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:14:47,950 INFO L471 AbstractCegarLoop]: Abstraction has 1091 states and 1266 transitions. [2024-10-11 19:14:47,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 6.0) internal successors, (72), 14 states have internal predecessors, (72), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 19:14:47,950 INFO L276 IsEmpty]: Start isEmpty. Operand 1091 states and 1266 transitions. [2024-10-11 19:14:47,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-11 19:14:47,951 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:14:47,951 INFO L215 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:14:47,961 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2024-10-11 19:14:48,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:14:48,152 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-10-11 19:14:48,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:14:48,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1018618056, now seen corresponding path program 3 times [2024-10-11 19:14:48,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:14:48,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1205989661] [2024-10-11 19:14:48,153 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 19:14:48,153 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:14:48,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:14:48,154 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:14:48,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2024-10-11 19:14:48,714 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-10-11 19:14:48,715 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 19:14:48,726 INFO L255 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 19:14:48,728 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:14:48,862 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:48,862 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 19:14:49,282 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:49,283 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:14:49,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1205989661] [2024-10-11 19:14:49,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1205989661] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 19:14:49,283 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 19:14:49,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-10-11 19:14:49,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580672042] [2024-10-11 19:14:49,283 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 19:14:49,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-11 19:14:49,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:14:49,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-11 19:14:49,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-10-11 19:14:49,285 INFO L87 Difference]: Start difference. First operand 1091 states and 1266 transitions. Second operand has 26 states, 24 states have (on average 3.5) internal successors, (84), 26 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 19:14:52,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:14:52,713 INFO L93 Difference]: Finished difference Result 1112 states and 1302 transitions. [2024-10-11 19:14:52,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-10-11 19:14:52,714 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 3.5) internal successors, (84), 26 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 74 [2024-10-11 19:14:52,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:14:52,716 INFO L225 Difference]: With dead ends: 1112 [2024-10-11 19:14:52,717 INFO L226 Difference]: Without dead ends: 1109 [2024-10-11 19:14:52,717 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2024-10-11 19:14:52,718 INFO L432 NwaCegarLoop]: 846 mSDtfsCounter, 13 mSDsluCounter, 10137 mSDsCounter, 0 mSdLazyCounter, 1833 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 10983 SdHoareTripleChecker+Invalid, 1846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-10-11 19:14:52,718 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 10983 Invalid, 1846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1833 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-10-11 19:14:52,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2024-10-11 19:14:52,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 1109. [2024-10-11 19:14:52,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1109 states, 675 states have (on average 1.8814814814814815) internal successors, (1270), 1101 states have internal predecessors, (1270), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-10-11 19:14:52,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1109 states to 1109 states and 1289 transitions. [2024-10-11 19:14:52,731 INFO L78 Accepts]: Start accepts. Automaton has 1109 states and 1289 transitions. Word has length 74 [2024-10-11 19:14:52,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:14:52,731 INFO L471 AbstractCegarLoop]: Abstraction has 1109 states and 1289 transitions. [2024-10-11 19:14:52,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 3.5) internal successors, (84), 26 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 19:14:52,732 INFO L276 IsEmpty]: Start isEmpty. Operand 1109 states and 1289 transitions. [2024-10-11 19:14:52,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-11 19:14:52,732 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:14:52,733 INFO L215 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:14:52,745 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2024-10-11 19:14:52,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:14:52,933 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-10-11 19:14:52,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:14:52,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1470681544, now seen corresponding path program 4 times [2024-10-11 19:14:52,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:14:52,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [103076109] [2024-10-11 19:14:52,934 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-11 19:14:52,934 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:14:52,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:14:52,936 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:14:52,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2024-10-11 19:14:53,372 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-11 19:14:53,372 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 19:14:53,385 INFO L255 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-10-11 19:14:53,388 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:14:53,825 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:53,826 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 19:14:55,052 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:55,052 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:14:55,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [103076109] [2024-10-11 19:14:55,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [103076109] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 19:14:55,053 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 19:14:55,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2024-10-11 19:14:55,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129861149] [2024-10-11 19:14:55,053 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 19:14:55,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-10-11 19:14:55,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:14:55,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-10-11 19:14:55,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2024-10-11 19:14:55,056 INFO L87 Difference]: Start difference. First operand 1109 states and 1289 transitions. Second operand has 50 states, 48 states have (on average 2.25) internal successors, (108), 50 states have internal predecessors, (108), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 19:15:03,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:15:03,269 INFO L93 Difference]: Finished difference Result 1147 states and 1359 transitions. [2024-10-11 19:15:03,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-10-11 19:15:03,270 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 48 states have (on average 2.25) internal successors, (108), 50 states have internal predecessors, (108), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 86 [2024-10-11 19:15:03,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:15:03,273 INFO L225 Difference]: With dead ends: 1147 [2024-10-11 19:15:03,273 INFO L226 Difference]: Without dead ends: 1145 [2024-10-11 19:15:03,275 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=2713, Invalid=5843, Unknown=0, NotChecked=0, Total=8556 [2024-10-11 19:15:03,275 INFO L432 NwaCegarLoop]: 846 mSDtfsCounter, 25 mSDsluCounter, 19397 mSDsCounter, 0 mSdLazyCounter, 4345 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 20243 SdHoareTripleChecker+Invalid, 4401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 4345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-10-11 19:15:03,276 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 20243 Invalid, 4401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 4345 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-10-11 19:15:03,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1145 states. [2024-10-11 19:15:03,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1145 to 1143. [2024-10-11 19:15:03,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1143 states, 709 states have (on average 1.8561354019746121) internal successors, (1316), 1135 states have internal predecessors, (1316), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-10-11 19:15:03,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1143 states to 1143 states and 1335 transitions. [2024-10-11 19:15:03,289 INFO L78 Accepts]: Start accepts. Automaton has 1143 states and 1335 transitions. Word has length 86 [2024-10-11 19:15:03,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:15:03,289 INFO L471 AbstractCegarLoop]: Abstraction has 1143 states and 1335 transitions. [2024-10-11 19:15:03,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 48 states have (on average 2.25) internal successors, (108), 50 states have internal predecessors, (108), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 19:15:03,290 INFO L276 IsEmpty]: Start isEmpty. Operand 1143 states and 1335 transitions. [2024-10-11 19:15:03,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-10-11 19:15:03,291 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:15:03,291 INFO L215 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:15:03,303 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2024-10-11 19:15:03,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:15:03,491 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-10-11 19:15:03,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:15:03,492 INFO L85 PathProgramCache]: Analyzing trace with hash -77801032, now seen corresponding path program 5 times [2024-10-11 19:15:03,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:15:03,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1172957035] [2024-10-11 19:15:03,493 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-11 19:15:03,493 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:15:03,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:15:03,494 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:15:03,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2024-10-11 19:15:04,645 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2024-10-11 19:15:04,645 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 19:15:04,668 INFO L255 TraceCheckSpWp]: Trace formula consists of 809 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-10-11 19:15:04,675 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:15:04,682 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-11 19:15:04,760 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-10-11 19:15:04,760 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2024-10-11 19:15:04,783 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-10-11 19:15:04,850 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2024-10-11 19:15:05,745 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-10-11 19:15:05,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-10-11 19:15:05,798 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-10-11 19:15:05,830 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-10-11 19:15:05,830 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 19:15:06,175 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:15:06,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1172957035] [2024-10-11 19:15:06,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1172957035] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 19:15:06,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1196087581] [2024-10-11 19:15:06,176 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-11 19:15:06,176 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-10-11 19:15:06,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/cvc4 [2024-10-11 19:15:06,177 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-10-11 19:15:06,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process