./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f6bf6d70eb07e52125f91259e05d2dabd63dc1b16a64b1f25a229511f6ff83f8 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 12:03:47,462 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 12:03:47,557 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-13 12:03:47,564 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 12:03:47,565 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 12:03:47,606 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 12:03:47,606 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 12:03:47,608 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 12:03:47,609 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 12:03:47,609 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 12:03:47,609 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 12:03:47,609 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 12:03:47,610 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 12:03:47,612 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 12:03:47,612 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 12:03:47,613 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 12:03:47,613 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 12:03:47,613 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 12:03:47,614 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 12:03:47,614 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 12:03:47,614 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-13 12:03:47,615 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-13 12:03:47,615 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-13 12:03:47,616 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 12:03:47,616 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-13 12:03:47,616 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 12:03:47,617 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 12:03:47,617 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 12:03:47,617 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 12:03:47,618 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 12:03:47,618 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 12:03:47,618 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 12:03:47,618 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 12:03:47,619 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 12:03:47,619 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 12:03:47,619 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 12:03:47,620 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 12:03:47,620 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 12:03:47,620 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 12:03:47,621 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 12:03:47,621 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 12:03:47,621 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 12:03:47,622 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6bf6d70eb07e52125f91259e05d2dabd63dc1b16a64b1f25a229511f6ff83f8 [2024-10-13 12:03:47,912 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 12:03:47,941 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 12:03:47,945 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 12:03:47,946 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 12:03:47,947 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 12:03:47,948 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i [2024-10-13 12:03:49,476 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 12:03:49,789 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 12:03:49,790 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i [2024-10-13 12:03:49,807 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b6c1cd4c/51c4f0b8173f48988d047b0731a21497/FLAG20dad235e [2024-10-13 12:03:50,055 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b6c1cd4c/51c4f0b8173f48988d047b0731a21497 [2024-10-13 12:03:50,058 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 12:03:50,059 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 12:03:50,060 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 12:03:50,060 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 12:03:50,067 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 12:03:50,068 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:03:50" (1/1) ... [2024-10-13 12:03:50,069 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@426e25d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:50, skipping insertion in model container [2024-10-13 12:03:50,069 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:03:50" (1/1) ... [2024-10-13 12:03:50,134 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 12:03:50,686 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:03:50,702 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) [2024-10-13 12:03:50,703 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@656b4329 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:50, skipping insertion in model container [2024-10-13 12:03:50,703 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 12:03:50,703 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-10-13 12:03:50,706 INFO L158 Benchmark]: Toolchain (without parser) took 645.34ms. Allocated memory is still 174.1MB. Free memory was 140.2MB in the beginning and 119.2MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-13 12:03:50,706 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 174.1MB. Free memory is still 141.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 12:03:50,706 INFO L158 Benchmark]: CACSL2BoogieTranslator took 643.36ms. Allocated memory is still 174.1MB. Free memory was 140.2MB in the beginning and 119.2MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-13 12:03:50,708 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 174.1MB. Free memory is still 141.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 643.36ms. Allocated memory is still 174.1MB. Free memory was 140.2MB in the beginning and 119.2MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. 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/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f6bf6d70eb07e52125f91259e05d2dabd63dc1b16a64b1f25a229511f6ff83f8 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 12:03:52,820 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 12:03:52,915 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-10-13 12:03:52,921 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 12:03:52,922 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 12:03:52,953 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 12:03:52,954 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 12:03:52,954 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 12:03:52,957 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 12:03:52,958 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 12:03:52,959 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 12:03:52,959 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 12:03:52,959 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 12:03:52,960 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 12:03:52,960 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 12:03:52,960 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 12:03:52,961 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 12:03:52,964 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 12:03:52,965 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 12:03:52,965 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 12:03:52,965 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-13 12:03:52,966 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-13 12:03:52,966 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-13 12:03:52,966 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 12:03:52,966 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-13 12:03:52,967 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-13 12:03:52,967 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 12:03:52,967 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-13 12:03:52,968 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 12:03:52,968 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 12:03:52,968 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 12:03:52,969 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 12:03:52,969 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 12:03:52,970 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 12:03:52,970 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 12:03:52,980 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 12:03:52,981 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 12:03:52,981 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 12:03:52,981 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-13 12:03:52,981 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-13 12:03:52,982 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 12:03:52,982 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 12:03:52,982 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 12:03:52,983 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 12:03:52,983 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-13 12:03:52,983 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6bf6d70eb07e52125f91259e05d2dabd63dc1b16a64b1f25a229511f6ff83f8 [2024-10-13 12:03:53,301 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 12:03:53,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 12:03:53,324 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 12:03:53,325 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 12:03:53,326 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 12:03:53,329 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i [2024-10-13 12:03:54,985 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 12:03:55,341 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 12:03:55,342 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i [2024-10-13 12:03:55,370 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af235898b/6d6500acdeca41a796a342934d0f869d/FLAG78f06e087 [2024-10-13 12:03:55,580 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af235898b/6d6500acdeca41a796a342934d0f869d [2024-10-13 12:03:55,583 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 12:03:55,585 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 12:03:55,587 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 12:03:55,587 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 12:03:55,592 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 12:03:55,593 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:03:55" (1/1) ... [2024-10-13 12:03:55,594 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b78dc2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:55, skipping insertion in model container [2024-10-13 12:03:55,594 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:03:55" (1/1) ... [2024-10-13 12:03:55,662 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 12:03:56,247 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:03:56,268 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-10-13 12:03:56,280 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 12:03:56,359 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:03:56,364 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 12:03:56,510 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:03:56,556 INFO L204 MainTranslator]: Completed translation [2024-10-13 12:03:56,557 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:56 WrapperNode [2024-10-13 12:03:56,557 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 12:03:56,558 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 12:03:56,558 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 12:03:56,558 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 12:03:56,565 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:56" (1/1) ... [2024-10-13 12:03:56,602 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:56" (1/1) ... [2024-10-13 12:03:56,681 INFO L138 Inliner]: procedures = 180, calls = 279, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1069 [2024-10-13 12:03:56,682 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 12:03:56,684 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 12:03:56,684 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 12:03:56,684 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 12:03:56,695 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:56" (1/1) ... [2024-10-13 12:03:56,695 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:56" (1/1) ... [2024-10-13 12:03:56,715 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:56" (1/1) ... [2024-10-13 12:03:56,805 INFO L175 MemorySlicer]: Split 255 memory accesses to 3 slices as follows [2, 219, 34]. 86 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 54 writes are split as follows [0, 50, 4]. [2024-10-13 12:03:56,806 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:56" (1/1) ... [2024-10-13 12:03:56,806 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:56" (1/1) ... [2024-10-13 12:03:56,855 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:56" (1/1) ... [2024-10-13 12:03:56,882 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:56" (1/1) ... [2024-10-13 12:03:56,888 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:56" (1/1) ... [2024-10-13 12:03:56,893 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:56" (1/1) ... [2024-10-13 12:03:56,912 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 12:03:56,913 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 12:03:56,913 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 12:03:56,913 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 12:03:56,914 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:56" (1/1) ... [2024-10-13 12:03:56,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 12:03:56,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 12:03:56,956 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 12:03:56,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 12:03:57,008 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-10-13 12:03:57,009 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-10-13 12:03:57,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-10-13 12:03:57,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-10-13 12:03:57,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-10-13 12:03:57,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-13 12:03:57,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-13 12:03:57,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-13 12:03:57,011 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-13 12:03:57,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-13 12:03:57,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-10-13 12:03:57,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-10-13 12:03:57,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-10-13 12:03:57,012 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-10-13 12:03:57,012 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-10-13 12:03:57,012 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-10-13 12:03:57,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-13 12:03:57,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 12:03:57,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-13 12:03:57,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-13 12:03:57,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-13 12:03:57,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-13 12:03:57,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-13 12:03:57,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-13 12:03:57,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-13 12:03:57,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-13 12:03:57,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-13 12:03:57,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-13 12:03:57,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-13 12:03:57,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-13 12:03:57,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-13 12:03:57,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-13 12:03:57,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 12:03:57,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 12:03:57,273 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 12:03:57,276 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 12:03:57,302 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-13 12:03:57,347 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-13 12:03:57,371 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-13 12:04:01,163 INFO L? ?]: Removed 1092 outVars from TransFormulas that were not future-live. [2024-10-13 12:04:01,163 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 12:04:01,361 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 12:04:01,361 INFO L314 CfgBuilder]: Removed 63 assume(true) statements. [2024-10-13 12:04:01,362 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:04:01 BoogieIcfgContainer [2024-10-13 12:04:01,362 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 12:04:01,364 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 12:04:01,364 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 12:04:01,367 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 12:04:01,367 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:03:55" (1/3) ... [2024-10-13 12:04:01,368 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bd188b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:04:01, skipping insertion in model container [2024-10-13 12:04:01,368 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:03:56" (2/3) ... [2024-10-13 12:04:01,368 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bd188b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:04:01, skipping insertion in model container [2024-10-13 12:04:01,368 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:04:01" (3/3) ... [2024-10-13 12:04:01,370 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test3-1.i [2024-10-13 12:04:01,386 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 12:04:01,387 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 527 error locations. [2024-10-13 12:04:01,457 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 12:04:01,463 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;@71ebc557, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 12:04:01,464 INFO L334 AbstractCegarLoop]: Starting to check reachability of 527 error locations. [2024-10-13 12:04:01,470 INFO L276 IsEmpty]: Start isEmpty. Operand has 971 states, 433 states have (on average 2.508083140877598) internal successors, (1086), 964 states have internal predecessors, (1086), 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) [2024-10-13 12:04:01,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-10-13 12:04:01,475 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:04:01,475 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-10-13 12:04:01,476 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-10-13 12:04:01,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:04:01,480 INFO L85 PathProgramCache]: Analyzing trace with hash 55003, now seen corresponding path program 1 times [2024-10-13 12:04:01,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:04:01,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [672906218] [2024-10-13 12:04:01,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:04:01,489 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 [2024-10-13 12:04:01,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:04:01,491 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 12:04:01,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-13 12:04:01,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:04:01,637 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 12:04:01,642 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:04:01,683 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 [2024-10-13 12:04:01,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:04:01,704 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:04:01,705 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:04:01,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [672906218] [2024-10-13 12:04:01,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [672906218] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:04:01,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:04:01,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 12:04:01,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209874623] [2024-10-13 12:04:01,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:04:01,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:04:01,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:04:01,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:04:01,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:04:01,763 INFO L87 Difference]: Start difference. First operand has 971 states, 433 states have (on average 2.508083140877598) internal successors, (1086), 964 states have internal predecessors, (1086), 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) [2024-10-13 12:04:03,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:04:03,291 INFO L93 Difference]: Finished difference Result 966 states and 1032 transitions. [2024-10-13 12:04:03,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:04:03,293 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 [2024-10-13 12:04:03,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:04:03,310 INFO L225 Difference]: With dead ends: 966 [2024-10-13 12:04:03,310 INFO L226 Difference]: Without dead ends: 965 [2024-10-13 12:04:03,311 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 [2024-10-13 12:04:03,314 INFO L432 NwaCegarLoop]: 539 mSDtfsCounter, 887 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 895 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-13 12:04:03,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [895 Valid, 591 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-13 12:04:03,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states. [2024-10-13 12:04:03,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 957. [2024-10-13 12:04:03,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 957 states, 436 states have (on average 2.305045871559633) internal successors, (1005), 950 states have internal predecessors, (1005), 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) [2024-10-13 12:04:03,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 1023 transitions. [2024-10-13 12:04:03,402 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 1023 transitions. Word has length 2 [2024-10-13 12:04:03,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:04:03,403 INFO L471 AbstractCegarLoop]: Abstraction has 957 states and 1023 transitions. [2024-10-13 12:04:03,403 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) [2024-10-13 12:04:03,404 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 1023 transitions. [2024-10-13 12:04:03,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-10-13 12:04:03,404 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:04:03,404 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-10-13 12:04:03,409 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-10-13 12:04:03,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:04:03,605 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-10-13 12:04:03,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:04:03,606 INFO L85 PathProgramCache]: Analyzing trace with hash 55004, now seen corresponding path program 1 times [2024-10-13 12:04:03,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:04:03,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [646379833] [2024-10-13 12:04:03,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:04:03,607 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 [2024-10-13 12:04:03,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:04:03,611 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 12:04:03,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-13 12:04:03,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:04:03,715 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 12:04:03,720 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:04:03,732 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 [2024-10-13 12:04:03,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:04:03,743 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:04:03,743 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:04:03,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [646379833] [2024-10-13 12:04:03,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [646379833] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:04:03,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:04:03,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 12:04:03,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158250788] [2024-10-13 12:04:03,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:04:03,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:04:03,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:04:03,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:04:03,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:04:03,746 INFO L87 Difference]: Start difference. First operand 957 states and 1023 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) [2024-10-13 12:04:06,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:04:06,110 INFO L93 Difference]: Finished difference Result 1337 states and 1445 transitions. [2024-10-13 12:04:06,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:04:06,111 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 [2024-10-13 12:04:06,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:04:06,117 INFO L225 Difference]: With dead ends: 1337 [2024-10-13 12:04:06,117 INFO L226 Difference]: Without dead ends: 1337 [2024-10-13 12:04:06,118 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 [2024-10-13 12:04:06,119 INFO L432 NwaCegarLoop]: 758 mSDtfsCounter, 410 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 1250 SdHoareTripleChecker+Invalid, 782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-13 12:04:06,120 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [415 Valid, 1250 Invalid, 782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-13 12:04:06,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1337 states. [2024-10-13 12:04:06,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1337 to 1130. [2024-10-13 12:04:06,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1130 states, 610 states have (on average 2.281967213114754) internal successors, (1392), 1123 states have internal predecessors, (1392), 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) [2024-10-13 12:04:06,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1130 states to 1130 states and 1410 transitions. [2024-10-13 12:04:06,168 INFO L78 Accepts]: Start accepts. Automaton has 1130 states and 1410 transitions. Word has length 2 [2024-10-13 12:04:06,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:04:06,168 INFO L471 AbstractCegarLoop]: Abstraction has 1130 states and 1410 transitions. [2024-10-13 12:04:06,168 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) [2024-10-13 12:04:06,169 INFO L276 IsEmpty]: Start isEmpty. Operand 1130 states and 1410 transitions. [2024-10-13 12:04:06,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-13 12:04:06,170 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:04:06,170 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-13 12:04:06,174 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-10-13 12:04:06,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:04:06,373 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-10-13 12:04:06,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:04:06,374 INFO L85 PathProgramCache]: Analyzing trace with hash -742713115, now seen corresponding path program 1 times [2024-10-13 12:04:06,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:04:06,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1914962245] [2024-10-13 12:04:06,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:04:06,375 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 [2024-10-13 12:04:06,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:04:06,378 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 12:04:06,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-10-13 12:04:06,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:04:06,516 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 12:04:06,519 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:04:06,532 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 [2024-10-13 12:04:06,541 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 [2024-10-13 12:04:06,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 12:04:06,635 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 [2024-10-13 12:04:06,649 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-13 12:04:06,649 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 [2024-10-13 12:04:06,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:04:06,675 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:04:06,675 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:04:06,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1914962245] [2024-10-13 12:04:06,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1914962245] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:04:06,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:04:06,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 12:04:06,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052559531] [2024-10-13 12:04:06,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:04:06,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:04:06,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:04:06,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:04:06,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:04:06,678 INFO L87 Difference]: Start difference. First operand 1130 states and 1410 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) [2024-10-13 12:04:08,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:04:08,684 INFO L93 Difference]: Finished difference Result 1132 states and 1414 transitions. [2024-10-13 12:04:08,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 12:04:08,685 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 [2024-10-13 12:04:08,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:04:08,689 INFO L225 Difference]: With dead ends: 1132 [2024-10-13 12:04:08,690 INFO L226 Difference]: Without dead ends: 1132 [2024-10-13 12:04:08,690 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 [2024-10-13 12:04:08,691 INFO L432 NwaCegarLoop]: 278 mSDtfsCounter, 977 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 831 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 985 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-13 12:04:08,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [985 Valid, 318 Invalid, 848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 831 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-13 12:04:08,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2024-10-13 12:04:08,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 945. [2024-10-13 12:04:08,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 945 states, 436 states have (on average 2.2752293577981653) internal successors, (992), 938 states have internal predecessors, (992), 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) [2024-10-13 12:04:08,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 1010 transitions. [2024-10-13 12:04:08,715 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 1010 transitions. Word has length 6 [2024-10-13 12:04:08,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:04:08,716 INFO L471 AbstractCegarLoop]: Abstraction has 945 states and 1010 transitions. [2024-10-13 12:04:08,716 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) [2024-10-13 12:04:08,716 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1010 transitions. [2024-10-13 12:04:08,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-13 12:04:08,717 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:04:08,717 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:04:08,723 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-10-13 12:04:08,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:04:08,918 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-10-13 12:04:08,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:04:08,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1549270083, now seen corresponding path program 1 times [2024-10-13 12:04:08,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:04:08,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [577651468] [2024-10-13 12:04:08,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:04:08,921 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 [2024-10-13 12:04:08,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:04:08,928 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 12:04:08,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-10-13 12:04:09,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:04:09,056 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 12:04:09,058 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:04:09,070 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 [2024-10-13 12:04:09,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:04:09,097 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:04:09,097 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:04:09,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [577651468] [2024-10-13 12:04:09,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [577651468] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:04:09,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:04:09,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 12:04:09,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323245625] [2024-10-13 12:04:09,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:04:09,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:04:09,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:04:09,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:04:09,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:04:09,099 INFO L87 Difference]: Start difference. First operand 945 states and 1010 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) [2024-10-13 12:04:11,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:04:11,044 INFO L93 Difference]: Finished difference Result 1368 states and 1470 transitions. [2024-10-13 12:04:11,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:04:11,046 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 [2024-10-13 12:04:11,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:04:11,050 INFO L225 Difference]: With dead ends: 1368 [2024-10-13 12:04:11,050 INFO L226 Difference]: Without dead ends: 1368 [2024-10-13 12:04:11,052 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 [2024-10-13 12:04:11,054 INFO L432 NwaCegarLoop]: 994 mSDtfsCounter, 623 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 1358 SdHoareTripleChecker+Invalid, 867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-13 12:04:11,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 1358 Invalid, 867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 854 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-13 12:04:11,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1368 states. [2024-10-13 12:04:11,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1368 to 962. [2024-10-13 12:04:11,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 463 states have (on average 2.2678185745140387) internal successors, (1050), 955 states have internal predecessors, (1050), 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) [2024-10-13 12:04:11,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1068 transitions. [2024-10-13 12:04:11,077 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1068 transitions. Word has length 7 [2024-10-13 12:04:11,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:04:11,077 INFO L471 AbstractCegarLoop]: Abstraction has 962 states and 1068 transitions. [2024-10-13 12:04:11,077 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) [2024-10-13 12:04:11,078 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1068 transitions. [2024-10-13 12:04:11,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-13 12:04:11,078 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:04:11,078 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:04:11,082 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-10-13 12:04:11,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:04:11,279 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-10-13 12:04:11,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:04:11,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1549270084, now seen corresponding path program 1 times [2024-10-13 12:04:11,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:04:11,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [550653007] [2024-10-13 12:04:11,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:04:11,281 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 [2024-10-13 12:04:11,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:04:11,283 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 12:04:11,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-10-13 12:04:11,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:04:11,394 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 12:04:11,396 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:04:11,405 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 [2024-10-13 12:04:11,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:04:11,414 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:04:11,414 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:04:11,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [550653007] [2024-10-13 12:04:11,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [550653007] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:04:11,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:04:11,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 12:04:11,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130033757] [2024-10-13 12:04:11,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:04:11,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:04:11,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:04:11,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:04:11,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:04:11,416 INFO L87 Difference]: Start difference. First operand 962 states and 1068 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) [2024-10-13 12:04:12,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:04:12,763 INFO L93 Difference]: Finished difference Result 1261 states and 1393 transitions. [2024-10-13 12:04:12,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:04:12,763 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 [2024-10-13 12:04:12,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:04:12,768 INFO L225 Difference]: With dead ends: 1261 [2024-10-13 12:04:12,768 INFO L226 Difference]: Without dead ends: 1261 [2024-10-13 12:04:12,768 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 [2024-10-13 12:04:12,769 INFO L432 NwaCegarLoop]: 796 mSDtfsCounter, 842 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 1005 SdHoareTripleChecker+Invalid, 831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-13 12:04:12,769 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [850 Valid, 1005 Invalid, 831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 778 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-13 12:04:12,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1261 states. [2024-10-13 12:04:12,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1261 to 913. [2024-10-13 12:04:12,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 463 states have (on average 2.1533477321814254) internal successors, (997), 906 states have internal predecessors, (997), 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) [2024-10-13 12:04:12,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1015 transitions. [2024-10-13 12:04:12,793 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1015 transitions. Word has length 7 [2024-10-13 12:04:12,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:04:12,793 INFO L471 AbstractCegarLoop]: Abstraction has 913 states and 1015 transitions. [2024-10-13 12:04:12,793 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) [2024-10-13 12:04:12,794 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1015 transitions. [2024-10-13 12:04:12,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-13 12:04:12,794 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:04:12,794 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:04:12,798 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-10-13 12:04:12,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:04:12,998 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr519REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-10-13 12:04:12,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:04:12,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1797452907, now seen corresponding path program 1 times [2024-10-13 12:04:12,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:04:12,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1272866706] [2024-10-13 12:04:12,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:04:12,999 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 [2024-10-13 12:04:12,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:04:13,000 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 12:04:13,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-10-13 12:04:13,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:04:13,120 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 12:04:13,121 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:04:13,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:04:13,218 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:04:13,218 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:04:13,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1272866706] [2024-10-13 12:04:13,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1272866706] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:04:13,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:04:13,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 12:04:13,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249673937] [2024-10-13 12:04:13,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:04:13,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:04:13,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:04:13,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:04:13,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:04:13,222 INFO L87 Difference]: Start difference. First operand 913 states and 1015 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) [2024-10-13 12:04:14,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:04:14,348 INFO L93 Difference]: Finished difference Result 1292 states and 1449 transitions. [2024-10-13 12:04:14,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 12:04:14,349 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 [2024-10-13 12:04:14,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:04:14,354 INFO L225 Difference]: With dead ends: 1292 [2024-10-13 12:04:14,354 INFO L226 Difference]: Without dead ends: 1292 [2024-10-13 12:04:14,354 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:04:14,355 INFO L432 NwaCegarLoop]: 889 mSDtfsCounter, 403 mSDsluCounter, 1561 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 2450 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-13 12:04:14,355 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 2450 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-13 12:04:14,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1292 states. [2024-10-13 12:04:14,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1292 to 1113. [2024-10-13 12:04:14,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1113 states, 663 states have (on average 2.129713423831071) internal successors, (1412), 1106 states have internal predecessors, (1412), 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) [2024-10-13 12:04:14,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1113 states to 1113 states and 1430 transitions. [2024-10-13 12:04:14,376 INFO L78 Accepts]: Start accepts. Automaton has 1113 states and 1430 transitions. Word has length 10 [2024-10-13 12:04:14,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:04:14,376 INFO L471 AbstractCegarLoop]: Abstraction has 1113 states and 1430 transitions. [2024-10-13 12:04:14,376 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) [2024-10-13 12:04:14,376 INFO L276 IsEmpty]: Start isEmpty. Operand 1113 states and 1430 transitions. [2024-10-13 12:04:14,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-13 12:04:14,377 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:04:14,377 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:04:14,382 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-10-13 12:04:14,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:04:14,578 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr525ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-10-13 12:04:14,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:04:14,579 INFO L85 PathProgramCache]: Analyzing trace with hash 113536001, now seen corresponding path program 1 times [2024-10-13 12:04:14,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:04:14,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1642423133] [2024-10-13 12:04:14,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:04:14,580 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 [2024-10-13 12:04:14,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:04:14,581 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 12:04:14,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-10-13 12:04:14,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:04:14,725 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 12:04:14,727 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:04:14,735 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-13 12:04:14,736 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-13 12:04:14,736 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-13 12:04:14,740 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 [2024-10-13 12:04:14,788 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 12:04:14,789 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 [2024-10-13 12:04:14,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:04:14,802 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:04:14,805 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:04:14,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1642423133] [2024-10-13 12:04:14,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1642423133] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:04:14,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:04:14,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 12:04:14,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738612536] [2024-10-13 12:04:14,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:04:14,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:04:14,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:04:14,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:04:14,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:04:14,807 INFO L87 Difference]: Start difference. First operand 1113 states and 1430 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:04:16,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:04:16,073 INFO L93 Difference]: Finished difference Result 1941 states and 2363 transitions. [2024-10-13 12:04:16,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 12:04:16,073 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-10-13 12:04:16,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:04:16,079 INFO L225 Difference]: With dead ends: 1941 [2024-10-13 12:04:16,079 INFO L226 Difference]: Without dead ends: 1941 [2024-10-13 12:04:16,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 12:04:16,080 INFO L432 NwaCegarLoop]: 995 mSDtfsCounter, 871 mSDsluCounter, 1803 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 879 SdHoareTripleChecker+Valid, 2798 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-13 12:04:16,080 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [879 Valid, 2798 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-13 12:04:16,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1941 states. [2024-10-13 12:04:16,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1941 to 1112. [2024-10-13 12:04:16,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 662 states have (on average 2.1299093655589125) internal successors, (1410), 1105 states have internal predecessors, (1410), 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) [2024-10-13 12:04:16,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1428 transitions. [2024-10-13 12:04:16,105 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1428 transitions. Word has length 11 [2024-10-13 12:04:16,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:04:16,105 INFO L471 AbstractCegarLoop]: Abstraction has 1112 states and 1428 transitions. [2024-10-13 12:04:16,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:04:16,105 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1428 transitions. [2024-10-13 12:04:16,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-13 12:04:16,106 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:04:16,106 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:04:16,112 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-10-13 12:04:16,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:04:16,307 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-10-13 12:04:16,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:04:16,309 INFO L85 PathProgramCache]: Analyzing trace with hash 852733011, now seen corresponding path program 1 times [2024-10-13 12:04:16,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:04:16,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2082321877] [2024-10-13 12:04:16,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:04:16,310 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 [2024-10-13 12:04:16,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:04:16,313 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 12:04:16,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-10-13 12:04:16,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:04:16,459 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 12:04:16,460 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:04:16,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:04:16,471 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:04:16,472 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:04:16,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2082321877] [2024-10-13 12:04:16,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2082321877] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:04:16,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:04:16,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 12:04:16,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570195075] [2024-10-13 12:04:16,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:04:16,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:04:16,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:04:16,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:04:16,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:04:16,474 INFO L87 Difference]: Start difference. First operand 1112 states and 1428 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) [2024-10-13 12:04:16,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:04:16,937 INFO L93 Difference]: Finished difference Result 1058 states and 1348 transitions. [2024-10-13 12:04:16,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:04:16,939 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 [2024-10-13 12:04:16,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:04:16,943 INFO L225 Difference]: With dead ends: 1058 [2024-10-13 12:04:16,943 INFO L226 Difference]: Without dead ends: 1058 [2024-10-13 12:04:16,943 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 [2024-10-13 12:04:16,944 INFO L432 NwaCegarLoop]: 792 mSDtfsCounter, 61 mSDsluCounter, 750 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 1542 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 12:04:16,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 1542 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 12:04:16,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1058 states. [2024-10-13 12:04:16,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1058 to 1058. [2024-10-13 12:04:16,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 632 states have (on average 2.1044303797468356) internal successors, (1330), 1051 states have internal predecessors, (1330), 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) [2024-10-13 12:04:16,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1348 transitions. [2024-10-13 12:04:16,975 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1348 transitions. Word has length 15 [2024-10-13 12:04:16,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:04:16,975 INFO L471 AbstractCegarLoop]: Abstraction has 1058 states and 1348 transitions. [2024-10-13 12:04:16,975 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) [2024-10-13 12:04:16,975 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1348 transitions. [2024-10-13 12:04:16,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-13 12:04:16,976 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:04:16,976 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:04:16,983 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2024-10-13 12:04:17,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:04:17,177 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-10-13 12:04:17,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:04:17,178 INFO L85 PathProgramCache]: Analyzing trace with hash -862332723, now seen corresponding path program 1 times [2024-10-13 12:04:17,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:04:17,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1185436586] [2024-10-13 12:04:17,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:04:17,179 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 [2024-10-13 12:04:17,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:04:17,182 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 12:04:17,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-10-13 12:04:17,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:04:17,323 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 12:04:17,325 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:04:17,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:04:17,340 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:04:17,340 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:04:17,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1185436586] [2024-10-13 12:04:17,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1185436586] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:04:17,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:04:17,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 12:04:17,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414917119] [2024-10-13 12:04:17,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:04:17,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:04:17,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:04:17,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:04:17,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:04:17,342 INFO L87 Difference]: Start difference. First operand 1058 states and 1348 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) [2024-10-13 12:04:17,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:04:17,976 INFO L93 Difference]: Finished difference Result 1042 states and 1304 transitions. [2024-10-13 12:04:17,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 12:04:17,978 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 [2024-10-13 12:04:17,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:04:17,982 INFO L225 Difference]: With dead ends: 1042 [2024-10-13 12:04:17,982 INFO L226 Difference]: Without dead ends: 1042 [2024-10-13 12:04:17,982 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 [2024-10-13 12:04:17,983 INFO L432 NwaCegarLoop]: 761 mSDtfsCounter, 45 mSDsluCounter, 1504 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 2265 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-13 12:04:17,983 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 2265 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-13 12:04:17,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2024-10-13 12:04:17,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 1042. [2024-10-13 12:04:17,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1042 states, 630 states have (on average 2.041269841269841) internal successors, (1286), 1035 states have internal predecessors, (1286), 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) [2024-10-13 12:04:18,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1042 states to 1042 states and 1304 transitions. [2024-10-13 12:04:18,003 INFO L78 Accepts]: Start accepts. Automaton has 1042 states and 1304 transitions. Word has length 17 [2024-10-13 12:04:18,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:04:18,004 INFO L471 AbstractCegarLoop]: Abstraction has 1042 states and 1304 transitions. [2024-10-13 12:04:18,004 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) [2024-10-13 12:04:18,004 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states and 1304 transitions. [2024-10-13 12:04:18,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-13 12:04:18,004 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:04:18,005 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] [2024-10-13 12:04:18,013 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2024-10-13 12:04:18,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:04:18,206 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-10-13 12:04:18,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:04:18,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1100025371, now seen corresponding path program 1 times [2024-10-13 12:04:18,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:04:18,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [61308294] [2024-10-13 12:04:18,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:04:18,207 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 [2024-10-13 12:04:18,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:04:18,210 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 12:04:18,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-10-13 12:04:18,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:04:18,399 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 12:04:18,404 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:04:18,410 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 [2024-10-13 12:04:18,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:04:18,479 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:04:18,480 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:04:18,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [61308294] [2024-10-13 12:04:18,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [61308294] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:04:18,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:04:18,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 12:04:18,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105898684] [2024-10-13 12:04:18,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:04:18,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:04:18,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:04:18,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:04:18,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:04:18,482 INFO L87 Difference]: Start difference. First operand 1042 states and 1304 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) [2024-10-13 12:04:20,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:04:20,065 INFO L93 Difference]: Finished difference Result 1454 states and 1837 transitions. [2024-10-13 12:04:20,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 12:04:20,066 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 [2024-10-13 12:04:20,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:04:20,070 INFO L225 Difference]: With dead ends: 1454 [2024-10-13 12:04:20,070 INFO L226 Difference]: Without dead ends: 1454 [2024-10-13 12:04:20,070 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 [2024-10-13 12:04:20,070 INFO L432 NwaCegarLoop]: 428 mSDtfsCounter, 784 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 1187 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 1001 SdHoareTripleChecker+Invalid, 1195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-13 12:04:20,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [792 Valid, 1001 Invalid, 1195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1187 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-13 12:04:20,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1454 states. [2024-10-13 12:04:20,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1454 to 1038. [2024-10-13 12:04:20,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1038 states, 630 states have (on average 2.0285714285714285) internal successors, (1278), 1031 states have internal predecessors, (1278), 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) [2024-10-13 12:04:20,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1038 states to 1038 states and 1296 transitions. [2024-10-13 12:04:20,088 INFO L78 Accepts]: Start accepts. Automaton has 1038 states and 1296 transitions. Word has length 31 [2024-10-13 12:04:20,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:04:20,088 INFO L471 AbstractCegarLoop]: Abstraction has 1038 states and 1296 transitions. [2024-10-13 12:04:20,089 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) [2024-10-13 12:04:20,089 INFO L276 IsEmpty]: Start isEmpty. Operand 1038 states and 1296 transitions. [2024-10-13 12:04:20,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-13 12:04:20,089 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:04:20,090 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] [2024-10-13 12:04:20,096 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2024-10-13 12:04:20,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:04:20,290 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-10-13 12:04:20,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:04:20,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1100025372, now seen corresponding path program 1 times [2024-10-13 12:04:20,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:04:20,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [903300298] [2024-10-13 12:04:20,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:04:20,292 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 [2024-10-13 12:04:20,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:04:20,293 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 12:04:20,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-10-13 12:04:20,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:04:20,462 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-13 12:04:20,465 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:04:20,472 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-13 12:04:20,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:04:20,651 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:04:20,651 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:04:20,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [903300298] [2024-10-13 12:04:20,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [903300298] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:04:20,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:04:20,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 12:04:20,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173554496] [2024-10-13 12:04:20,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:04:20,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:04:20,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:04:20,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:04:20,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:04:20,653 INFO L87 Difference]: Start difference. First operand 1038 states and 1296 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) [2024-10-13 12:04:23,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:04:23,052 INFO L93 Difference]: Finished difference Result 1576 states and 1982 transitions. [2024-10-13 12:04:23,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 12:04:23,053 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 [2024-10-13 12:04:23,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:04:23,059 INFO L225 Difference]: With dead ends: 1576 [2024-10-13 12:04:23,059 INFO L226 Difference]: Without dead ends: 1576 [2024-10-13 12:04:23,059 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 [2024-10-13 12:04:23,060 INFO L432 NwaCegarLoop]: 988 mSDtfsCounter, 561 mSDsluCounter, 996 mSDsCounter, 0 mSdLazyCounter, 1433 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 1984 SdHoareTripleChecker+Invalid, 1436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-13 12:04:23,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [561 Valid, 1984 Invalid, 1436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1433 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-13 12:04:23,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2024-10-13 12:04:23,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1034. [2024-10-13 12:04:23,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1034 states, 630 states have (on average 2.015873015873016) internal successors, (1270), 1027 states have internal predecessors, (1270), 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) [2024-10-13 12:04:23,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1288 transitions. [2024-10-13 12:04:23,099 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1288 transitions. Word has length 31 [2024-10-13 12:04:23,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:04:23,101 INFO L471 AbstractCegarLoop]: Abstraction has 1034 states and 1288 transitions. [2024-10-13 12:04:23,101 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) [2024-10-13 12:04:23,101 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1288 transitions. [2024-10-13 12:04:23,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-10-13 12:04:23,102 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:04:23,102 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] [2024-10-13 12:04:23,108 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2024-10-13 12:04:23,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:04:23,307 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-10-13 12:04:23,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:04:23,307 INFO L85 PathProgramCache]: Analyzing trace with hash -298556595, now seen corresponding path program 1 times [2024-10-13 12:04:23,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:04:23,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2139886965] [2024-10-13 12:04:23,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:04:23,308 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:04:23,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:04:23,311 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 12:04:23,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-10-13 12:04:23,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:04:23,535 INFO L255 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 12:04:23,537 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:04:23,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:04:23,579 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:04:23,579 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:04:23,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2139886965] [2024-10-13 12:04:23,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2139886965] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:04:23,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:04:23,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 12:04:23,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334351165] [2024-10-13 12:04:23,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:04:23,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:04:23,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:04:23,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:04:23,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:04:23,581 INFO L87 Difference]: Start difference. First operand 1034 states and 1288 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) [2024-10-13 12:04:24,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:04:24,233 INFO L93 Difference]: Finished difference Result 1022 states and 1268 transitions. [2024-10-13 12:04:24,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 12:04:24,234 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 [2024-10-13 12:04:24,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:04:24,237 INFO L225 Difference]: With dead ends: 1022 [2024-10-13 12:04:24,237 INFO L226 Difference]: Without dead ends: 1022 [2024-10-13 12:04:24,237 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 [2024-10-13 12:04:24,238 INFO L432 NwaCegarLoop]: 755 mSDtfsCounter, 15 mSDsluCounter, 1493 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2248 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-13 12:04:24,238 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2248 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-13 12:04:24,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2024-10-13 12:04:24,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 1022. [2024-10-13 12:04:24,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1022 states, 618 states have (on average 2.0226537216828477) internal successors, (1250), 1015 states have internal predecessors, (1250), 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) [2024-10-13 12:04:24,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1022 states to 1022 states and 1268 transitions. [2024-10-13 12:04:24,252 INFO L78 Accepts]: Start accepts. Automaton has 1022 states and 1268 transitions. Word has length 50 [2024-10-13 12:04:24,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:04:24,252 INFO L471 AbstractCegarLoop]: Abstraction has 1022 states and 1268 transitions. [2024-10-13 12:04:24,252 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) [2024-10-13 12:04:24,252 INFO L276 IsEmpty]: Start isEmpty. Operand 1022 states and 1268 transitions. [2024-10-13 12:04:24,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-13 12:04:24,253 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:04:24,254 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] [2024-10-13 12:04:24,264 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-10-13 12:04:24,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:04:24,454 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-10-13 12:04:24,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:04:24,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1751174284, now seen corresponding path program 1 times [2024-10-13 12:04:24,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:04:24,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2052245971] [2024-10-13 12:04:24,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:04:24,456 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 [2024-10-13 12:04:24,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:04:24,458 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 12:04:24,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-10-13 12:04:24,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:04:24,780 INFO L255 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 12:04:24,783 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:04:24,793 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 [2024-10-13 12:04:24,800 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 [2024-10-13 12:04:25,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 12:04:25,255 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 [2024-10-13 12:04:25,264 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-13 12:04:25,265 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 [2024-10-13 12:04:25,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:04:25,279 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:04:25,279 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:04:25,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2052245971] [2024-10-13 12:04:25,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2052245971] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:04:25,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:04:25,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 12:04:25,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217607126] [2024-10-13 12:04:25,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:04:25,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:04:25,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:04:25,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:04:25,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:04:25,281 INFO L87 Difference]: Start difference. First operand 1022 states and 1268 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) [2024-10-13 12:04:26,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:04:26,952 INFO L93 Difference]: Finished difference Result 1392 states and 1763 transitions. [2024-10-13 12:04:26,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 12:04:26,953 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 [2024-10-13 12:04:26,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:04:26,957 INFO L225 Difference]: With dead ends: 1392 [2024-10-13 12:04:26,957 INFO L226 Difference]: Without dead ends: 1392 [2024-10-13 12:04:26,957 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 [2024-10-13 12:04:26,958 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 1788 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1791 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-13 12:04:26,958 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1791 Valid, 391 Invalid, 927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 881 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-13 12:04:26,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1392 states. [2024-10-13 12:04:26,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1392 to 957. [2024-10-13 12:04:26,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 957 states, 591 states have (on average 1.9424703891708968) internal successors, (1148), 950 states have internal predecessors, (1148), 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) [2024-10-13 12:04:26,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 1166 transitions. [2024-10-13 12:04:26,975 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 1166 transitions. Word has length 54 [2024-10-13 12:04:26,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:04:26,976 INFO L471 AbstractCegarLoop]: Abstraction has 957 states and 1166 transitions. [2024-10-13 12:04:26,976 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) [2024-10-13 12:04:26,976 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 1166 transitions. [2024-10-13 12:04:26,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-13 12:04:26,977 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:04:26,977 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:04:26,989 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-10-13 12:04:27,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:04:27,178 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-10-13 12:04:27,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:04:27,178 INFO L85 PathProgramCache]: Analyzing trace with hash -897303756, now seen corresponding path program 1 times [2024-10-13 12:04:27,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:04:27,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1689626879] [2024-10-13 12:04:27,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:04:27,179 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 [2024-10-13 12:04:27,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:04:27,183 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 12:04:27,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-10-13 12:04:27,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:04:27,458 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-13 12:04:27,461 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:04:27,467 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 [2024-10-13 12:04:27,479 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 [2024-10-13 12:04:27,496 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 [2024-10-13 12:04:27,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:04:27,507 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:04:27,507 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:04:27,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1689626879] [2024-10-13 12:04:27,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1689626879] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:04:27,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:04:27,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 12:04:27,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058272561] [2024-10-13 12:04:27,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:04:27,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 12:04:27,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:04:27,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 12:04:27,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 12:04:27,509 INFO L87 Difference]: Start difference. First operand 957 states and 1166 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) [2024-10-13 12:04:29,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:04:29,139 INFO L93 Difference]: Finished difference Result 956 states and 1165 transitions. [2024-10-13 12:04:29,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 12:04:29,140 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 [2024-10-13 12:04:29,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:04:29,143 INFO L225 Difference]: With dead ends: 956 [2024-10-13 12:04:29,143 INFO L226 Difference]: Without dead ends: 956 [2024-10-13 12:04:29,143 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 [2024-10-13 12:04:29,144 INFO L432 NwaCegarLoop]: 729 mSDtfsCounter, 2 mSDsluCounter, 1194 mSDsCounter, 0 mSdLazyCounter, 1365 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1923 SdHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-13 12:04:29,144 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1923 Invalid, 1366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1365 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-13 12:04:29,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2024-10-13 12:04:29,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 956. [2024-10-13 12:04:29,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 956 states, 591 states have (on average 1.9407783417935702) internal successors, (1147), 949 states have internal predecessors, (1147), 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) [2024-10-13 12:04:29,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 956 states to 956 states and 1165 transitions. [2024-10-13 12:04:29,156 INFO L78 Accepts]: Start accepts. Automaton has 956 states and 1165 transitions. Word has length 58 [2024-10-13 12:04:29,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:04:29,156 INFO L471 AbstractCegarLoop]: Abstraction has 956 states and 1165 transitions. [2024-10-13 12:04:29,156 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) [2024-10-13 12:04:29,157 INFO L276 IsEmpty]: Start isEmpty. Operand 956 states and 1165 transitions. [2024-10-13 12:04:29,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-13 12:04:29,157 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:04:29,157 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] [2024-10-13 12:04:29,168 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2024-10-13 12:04:29,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:04:29,359 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-10-13 12:04:29,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:04:29,360 INFO L85 PathProgramCache]: Analyzing trace with hash -897303755, now seen corresponding path program 1 times [2024-10-13 12:04:29,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:04:29,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1779069039] [2024-10-13 12:04:29,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:04:29,361 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 [2024-10-13 12:04:29,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:04:29,364 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 12:04:29,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-10-13 12:04:29,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:04:29,668 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-13 12:04:29,670 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:04:29,680 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 [2024-10-13 12:04:29,696 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 [2024-10-13 12:04:29,705 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 [2024-10-13 12:04:29,747 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 [2024-10-13 12:04:29,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:04:29,766 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:04:29,766 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:04:29,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1779069039] [2024-10-13 12:04:29,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1779069039] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:04:29,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:04:29,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 12:04:29,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683780694] [2024-10-13 12:04:29,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:04:29,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 12:04:29,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:04:29,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 12:04:29,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 12:04:29,768 INFO L87 Difference]: Start difference. First operand 956 states and 1165 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) [2024-10-13 12:04:31,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:04:31,779 INFO L93 Difference]: Finished difference Result 955 states and 1164 transitions. [2024-10-13 12:04:31,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 12:04:31,780 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 [2024-10-13 12:04:31,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:04:31,783 INFO L225 Difference]: With dead ends: 955 [2024-10-13 12:04:31,783 INFO L226 Difference]: Without dead ends: 955 [2024-10-13 12:04:31,783 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 [2024-10-13 12:04:31,783 INFO L432 NwaCegarLoop]: 729 mSDtfsCounter, 1 mSDsluCounter, 1228 mSDsCounter, 0 mSdLazyCounter, 1328 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1957 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-13 12:04:31,784 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1957 Invalid, 1329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1328 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-13 12:04:31,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2024-10-13 12:04:31,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 955. [2024-10-13 12:04:31,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 955 states, 590 states have (on average 1.9423728813559322) internal successors, (1146), 948 states have internal predecessors, (1146), 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) [2024-10-13 12:04:31,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 955 states to 955 states and 1164 transitions. [2024-10-13 12:04:31,799 INFO L78 Accepts]: Start accepts. Automaton has 955 states and 1164 transitions. Word has length 58 [2024-10-13 12:04:31,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:04:31,800 INFO L471 AbstractCegarLoop]: Abstraction has 955 states and 1164 transitions. [2024-10-13 12:04:31,800 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) [2024-10-13 12:04:31,800 INFO L276 IsEmpty]: Start isEmpty. Operand 955 states and 1164 transitions. [2024-10-13 12:04:31,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-13 12:04:31,801 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:04:31,801 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] [2024-10-13 12:04:31,814 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2024-10-13 12:04:32,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:04:32,003 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-10-13 12:04:32,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:04:32,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1120195656, now seen corresponding path program 1 times [2024-10-13 12:04:32,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:04:32,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1622841358] [2024-10-13 12:04:32,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:04:32,004 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 [2024-10-13 12:04:32,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:04:32,006 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 12:04:32,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-10-13 12:04:32,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:04:32,257 INFO L255 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 12:04:32,259 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:04:32,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:04:32,282 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:04:32,282 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:04:32,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1622841358] [2024-10-13 12:04:32,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1622841358] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:04:32,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:04:32,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 12:04:32,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800063480] [2024-10-13 12:04:32,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:04:32,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:04:32,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:04:32,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:04:32,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:04:32,284 INFO L87 Difference]: Start difference. First operand 955 states and 1164 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) [2024-10-13 12:04:32,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:04:32,875 INFO L93 Difference]: Finished difference Result 957 states and 1167 transitions. [2024-10-13 12:04:32,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 12:04:32,876 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 [2024-10-13 12:04:32,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:04:32,880 INFO L225 Difference]: With dead ends: 957 [2024-10-13 12:04:32,880 INFO L226 Difference]: Without dead ends: 957 [2024-10-13 12:04:32,880 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 [2024-10-13 12:04:32,881 INFO L432 NwaCegarLoop]: 729 mSDtfsCounter, 0 mSDsluCounter, 1455 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2184 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-13 12:04:32,881 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2184 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-13 12:04:32,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2024-10-13 12:04:32,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 957. [2024-10-13 12:04:32,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 957 states, 591 states have (on average 1.9424703891708968) internal successors, (1148), 950 states have internal predecessors, (1148), 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) [2024-10-13 12:04:32,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 1167 transitions. [2024-10-13 12:04:32,896 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 1167 transitions. Word has length 64 [2024-10-13 12:04:32,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:04:32,897 INFO L471 AbstractCegarLoop]: Abstraction has 957 states and 1167 transitions. [2024-10-13 12:04:32,897 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) [2024-10-13 12:04:32,897 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 1167 transitions. [2024-10-13 12:04:32,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-13 12:04:32,899 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:04:32,899 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] [2024-10-13 12:04:32,908 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2024-10-13 12:04:33,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:04:33,100 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-10-13 12:04:33,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:04:33,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1932361558, now seen corresponding path program 1 times [2024-10-13 12:04:33,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:04:33,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1049712476] [2024-10-13 12:04:33,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:04:33,102 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:04:33,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:04:33,104 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 12:04:33,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-10-13 12:04:33,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:04:33,369 INFO L255 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 12:04:33,371 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:04:33,398 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:04:33,398 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 12:04:33,444 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:04:33,444 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:04:33,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1049712476] [2024-10-13 12:04:33,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1049712476] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 12:04:33,445 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 12:04:33,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-10-13 12:04:33,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790316331] [2024-10-13 12:04:33,445 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 12:04:33,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 12:04:33,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:04:33,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 12:04:33,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-13 12:04:33,447 INFO L87 Difference]: Start difference. First operand 957 states and 1167 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) [2024-10-13 12:04:34,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:04:34,136 INFO L93 Difference]: Finished difference Result 966 states and 1181 transitions. [2024-10-13 12:04:34,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 12:04:34,137 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 [2024-10-13 12:04:34,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:04:34,140 INFO L225 Difference]: With dead ends: 966 [2024-10-13 12:04:34,140 INFO L226 Difference]: Without dead ends: 966 [2024-10-13 12:04:34,141 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 [2024-10-13 12:04:34,141 INFO L432 NwaCegarLoop]: 728 mSDtfsCounter, 5 mSDsluCounter, 1454 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2182 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-13 12:04:34,141 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2182 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-13 12:04:34,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2024-10-13 12:04:34,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 965. [2024-10-13 12:04:34,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 598 states have (on average 1.9414715719063544) internal successors, (1161), 957 states have internal predecessors, (1161), 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) [2024-10-13 12:04:34,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1180 transitions. [2024-10-13 12:04:34,154 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1180 transitions. Word has length 65 [2024-10-13 12:04:34,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:04:34,154 INFO L471 AbstractCegarLoop]: Abstraction has 965 states and 1180 transitions. [2024-10-13 12:04:34,154 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) [2024-10-13 12:04:34,154 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1180 transitions. [2024-10-13 12:04:34,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-13 12:04:34,155 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:04:34,155 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] [2024-10-13 12:04:34,166 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2024-10-13 12:04:34,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:04:34,356 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-10-13 12:04:34,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:04:34,357 INFO L85 PathProgramCache]: Analyzing trace with hash -788389064, now seen corresponding path program 2 times [2024-10-13 12:04:34,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:04:34,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1827386666] [2024-10-13 12:04:34,358 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 12:04:34,358 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 [2024-10-13 12:04:34,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:04:34,361 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 12:04:34,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-10-13 12:04:34,836 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 12:04:34,836 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 12:04:34,849 INFO L255 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-13 12:04:34,851 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:04:34,894 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:04:34,894 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 12:04:35,024 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:04:35,024 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:04:35,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1827386666] [2024-10-13 12:04:35,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1827386666] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 12:04:35,025 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 12:04:35,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-10-13 12:04:35,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454591919] [2024-10-13 12:04:35,025 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 12:04:35,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-13 12:04:35,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:04:35,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-13 12:04:35,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-10-13 12:04:35,027 INFO L87 Difference]: Start difference. First operand 965 states and 1180 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) [2024-10-13 12:04:36,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:04:36,426 INFO L93 Difference]: Finished difference Result 977 states and 1199 transitions. [2024-10-13 12:04:36,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-13 12:04:36,428 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 [2024-10-13 12:04:36,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:04:36,431 INFO L225 Difference]: With dead ends: 977 [2024-10-13 12:04:36,431 INFO L226 Difference]: Without dead ends: 975 [2024-10-13 12:04:36,431 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2024-10-13 12:04:36,432 INFO L432 NwaCegarLoop]: 728 mSDtfsCounter, 7 mSDsluCounter, 4361 mSDsCounter, 0 mSdLazyCounter, 797 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5089 SdHoareTripleChecker+Invalid, 809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-13 12:04:36,432 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5089 Invalid, 809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 797 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-13 12:04:36,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 975 states. [2024-10-13 12:04:36,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 975 to 974. [2024-10-13 12:04:36,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 974 states, 607 states have (on average 1.9324546952224053) internal successors, (1173), 966 states have internal predecessors, (1173), 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) [2024-10-13 12:04:36,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 974 states to 974 states and 1192 transitions. [2024-10-13 12:04:36,451 INFO L78 Accepts]: Start accepts. Automaton has 974 states and 1192 transitions. Word has length 68 [2024-10-13 12:04:36,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:04:36,452 INFO L471 AbstractCegarLoop]: Abstraction has 974 states and 1192 transitions. [2024-10-13 12:04:36,452 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) [2024-10-13 12:04:36,452 INFO L276 IsEmpty]: Start isEmpty. Operand 974 states and 1192 transitions. [2024-10-13 12:04:36,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-13 12:04:36,453 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:04:36,453 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] [2024-10-13 12:04:36,464 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2024-10-13 12:04:36,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:04:36,654 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-10-13 12:04:36,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:04:36,655 INFO L85 PathProgramCache]: Analyzing trace with hash -151253384, now seen corresponding path program 3 times [2024-10-13 12:04:36,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:04:36,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [397900818] [2024-10-13 12:04:36,655 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-13 12:04:36,655 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 [2024-10-13 12:04:36,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:04:36,657 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 12:04:36,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-10-13 12:04:37,412 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-10-13 12:04:37,412 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 12:04:37,428 INFO L255 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-13 12:04:37,430 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:04:37,538 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:04:37,538 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 12:04:37,978 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:04:37,978 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:04:37,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [397900818] [2024-10-13 12:04:37,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [397900818] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 12:04:37,978 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 12:04:37,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-10-13 12:04:37,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022619774] [2024-10-13 12:04:37,979 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 12:04:37,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-13 12:04:37,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:04:37,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-13 12:04:37,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-10-13 12:04:37,981 INFO L87 Difference]: Start difference. First operand 974 states and 1192 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) [2024-10-13 12:04:41,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:04:41,220 INFO L93 Difference]: Finished difference Result 995 states and 1228 transitions. [2024-10-13 12:04:41,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-10-13 12:04:41,221 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 [2024-10-13 12:04:41,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:04:41,224 INFO L225 Difference]: With dead ends: 995 [2024-10-13 12:04:41,224 INFO L226 Difference]: Without dead ends: 992 [2024-10-13 12:04:41,225 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 [2024-10-13 12:04:41,225 INFO L432 NwaCegarLoop]: 728 mSDtfsCounter, 13 mSDsluCounter, 7995 mSDsCounter, 0 mSdLazyCounter, 1637 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 8723 SdHoareTripleChecker+Invalid, 1650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-13 12:04:41,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 8723 Invalid, 1650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1637 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-13 12:04:41,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2024-10-13 12:04:41,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 992. [2024-10-13 12:04:41,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 625 states have (on average 1.9136) internal successors, (1196), 984 states have internal predecessors, (1196), 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) [2024-10-13 12:04:41,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1215 transitions. [2024-10-13 12:04:41,237 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1215 transitions. Word has length 74 [2024-10-13 12:04:41,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:04:41,238 INFO L471 AbstractCegarLoop]: Abstraction has 992 states and 1215 transitions. [2024-10-13 12:04:41,238 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) [2024-10-13 12:04:41,238 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1215 transitions. [2024-10-13 12:04:41,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-13 12:04:41,239 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:04:41,239 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] [2024-10-13 12:04:41,251 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2024-10-13 12:04:41,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:04:41,440 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-10-13 12:04:41,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:04:41,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1885050104, now seen corresponding path program 4 times [2024-10-13 12:04:41,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:04:41,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1821239979] [2024-10-13 12:04:41,441 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-13 12:04:41,441 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 [2024-10-13 12:04:41,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:04:41,445 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 12:04:41,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-10-13 12:04:41,951 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-13 12:04:41,951 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 12:04:41,967 INFO L255 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-10-13 12:04:41,969 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:04:42,274 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:04:42,275 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 12:04:43,407 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:04:43,407 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:04:43,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1821239979] [2024-10-13 12:04:43,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1821239979] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 12:04:43,408 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 12:04:43,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2024-10-13 12:04:43,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992332179] [2024-10-13 12:04:43,408 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 12:04:43,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-10-13 12:04:43,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:04:43,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-10-13 12:04:43,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2024-10-13 12:04:43,411 INFO L87 Difference]: Start difference. First operand 992 states and 1215 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) [2024-10-13 12:04:51,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:04:51,372 INFO L93 Difference]: Finished difference Result 1029 states and 1284 transitions. [2024-10-13 12:04:51,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-10-13 12:04:51,374 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 [2024-10-13 12:04:51,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:04:51,380 INFO L225 Difference]: With dead ends: 1029 [2024-10-13 12:04:51,380 INFO L226 Difference]: Without dead ends: 1027 [2024-10-13 12:04:51,382 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 [2024-10-13 12:04:51,383 INFO L432 NwaCegarLoop]: 728 mSDtfsCounter, 25 mSDsluCounter, 16721 mSDsCounter, 0 mSdLazyCounter, 4056 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 17449 SdHoareTripleChecker+Invalid, 4088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 4056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-10-13 12:04:51,383 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 17449 Invalid, 4088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 4056 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-10-13 12:04:51,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2024-10-13 12:04:51,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 1026. [2024-10-13 12:04:51,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1026 states, 659 states have (on average 1.8846737481031866) internal successors, (1242), 1018 states have internal predecessors, (1242), 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) [2024-10-13 12:04:51,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1026 states to 1026 states and 1261 transitions. [2024-10-13 12:04:51,397 INFO L78 Accepts]: Start accepts. Automaton has 1026 states and 1261 transitions. Word has length 86 [2024-10-13 12:04:51,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:04:51,398 INFO L471 AbstractCegarLoop]: Abstraction has 1026 states and 1261 transitions. [2024-10-13 12:04:51,398 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) [2024-10-13 12:04:51,398 INFO L276 IsEmpty]: Start isEmpty. Operand 1026 states and 1261 transitions. [2024-10-13 12:04:51,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-10-13 12:04:51,399 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:04:51,399 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] [2024-10-13 12:04:51,413 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2024-10-13 12:04:51,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 12:04:51,600 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-10-13 12:04:51,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:04:51,600 INFO L85 PathProgramCache]: Analyzing trace with hash -272789960, now seen corresponding path program 5 times [2024-10-13 12:04:51,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:04:51,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1580283972] [2024-10-13 12:04:51,601 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-13 12:04:51,601 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 [2024-10-13 12:04:51,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:04:51,602 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 12:04:51,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2024-10-13 12:04:52,826 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2024-10-13 12:04:52,827 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 12:04:52,853 INFO L255 TraceCheckSpWp]: Trace formula consists of 809 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-10-13 12:04:52,860 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:04:52,864 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 [2024-10-13 12:04:52,984 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-10-13 12:04:52,984 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 [2024-10-13 12:04:53,022 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 [2024-10-13 12:04:53,104 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 [2024-10-13 12:04:54,105 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-10-13 12:04:54,105 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 [2024-10-13 12:04:54,161 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 [2024-10-13 12:04:54,193 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-10-13 12:04:54,193 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 12:04:54,513 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1961 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_1961) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))) is different from false [2024-10-13 12:04:54,516 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:04:54,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1580283972] [2024-10-13 12:04:54,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1580283972] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 12:04:54,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1010574570] [2024-10-13 12:04:54,516 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-13 12:04:54,516 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-10-13 12:04:54,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-10-13 12:04:54,519 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-10-13 12:04:54,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process