./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_BER_test5-1.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_BER_test5-1.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 df25530cebe2f8dbf5c0f407e5ccf4cecba61e3d44431cb17b70a57441db534c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 11:46:07,626 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 11:46:07,703 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-13 11:46:07,706 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 11:46:07,706 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 11:46:07,730 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 11:46:07,731 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 11:46:07,731 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 11:46:07,732 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 11:46:07,732 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 11:46:07,733 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 11:46:07,734 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 11:46:07,734 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 11:46:07,734 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 11:46:07,736 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 11:46:07,736 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 11:46:07,736 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 11:46:07,736 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 11:46:07,736 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 11:46:07,736 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 11:46:07,737 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-13 11:46:07,737 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-13 11:46:07,737 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-13 11:46:07,737 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 11:46:07,737 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-13 11:46:07,738 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 11:46:07,738 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 11:46:07,738 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 11:46:07,738 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 11:46:07,738 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 11:46:07,738 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 11:46:07,739 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 11:46:07,739 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 11:46:07,739 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 11:46:07,739 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 11:46:07,739 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 11:46:07,739 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 11:46:07,740 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 11:46:07,740 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 11:46:07,740 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 11:46:07,740 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 11:46:07,743 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 11:46:07,743 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df25530cebe2f8dbf5c0f407e5ccf4cecba61e3d44431cb17b70a57441db534c [2024-10-13 11:46:07,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 11:46:07,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 11:46:07,984 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 11:46:07,985 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 11:46:07,985 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 11:46:07,986 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i [2024-10-13 11:46:09,218 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 11:46:09,442 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 11:46:09,443 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i [2024-10-13 11:46:09,464 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbe723715/d60e32986aeb45f5bf9c9e33e299422a/FLAGf5eaafbea [2024-10-13 11:46:09,478 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbe723715/d60e32986aeb45f5bf9c9e33e299422a [2024-10-13 11:46:09,481 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 11:46:09,482 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 11:46:09,483 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 11:46:09,483 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 11:46:09,488 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 11:46:09,488 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:46:09" (1/1) ... [2024-10-13 11:46:09,489 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71405e4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:46:09, skipping insertion in model container [2024-10-13 11:46:09,491 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:46:09" (1/1) ... [2024-10-13 11:46:09,530 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 11:46:09,965 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 11:46:09,979 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 11:46:09,980 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@39408a96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:46:09, skipping insertion in model container [2024-10-13 11:46:09,980 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 11:46:09,981 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-10-13 11:46:09,982 INFO L158 Benchmark]: Toolchain (without parser) took 499.57ms. Allocated memory is still 192.9MB. Free memory was 121.0MB in the beginning and 96.9MB in the end (delta: 24.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-10-13 11:46:09,982 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 121.6MB. Free memory is still 85.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 11:46:09,983 INFO L158 Benchmark]: CACSL2BoogieTranslator took 497.54ms. Allocated memory is still 192.9MB. Free memory was 121.0MB in the beginning and 96.9MB in the end (delta: 24.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-10-13 11:46:09,984 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 121.6MB. Free memory is still 85.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 497.54ms. Allocated memory is still 192.9MB. Free memory was 121.0MB in the beginning and 96.9MB in the end (delta: 24.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 737]: 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_BER_test5-1.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 df25530cebe2f8dbf5c0f407e5ccf4cecba61e3d44431cb17b70a57441db534c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 11:46:11,743 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 11:46:11,813 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-10-13 11:46:11,819 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 11:46:11,820 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 11:46:11,846 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 11:46:11,848 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 11:46:11,848 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 11:46:11,849 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 11:46:11,849 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 11:46:11,849 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 11:46:11,849 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 11:46:11,850 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 11:46:11,850 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 11:46:11,850 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 11:46:11,850 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 11:46:11,851 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 11:46:11,851 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 11:46:11,852 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 11:46:11,852 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 11:46:11,852 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-13 11:46:11,853 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-13 11:46:11,856 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-13 11:46:11,856 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 11:46:11,856 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-13 11:46:11,856 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-13 11:46:11,856 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 11:46:11,856 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-13 11:46:11,856 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 11:46:11,856 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 11:46:11,857 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 11:46:11,857 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 11:46:11,857 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 11:46:11,857 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 11:46:11,857 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 11:46:11,857 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 11:46:11,857 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 11:46:11,858 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 11:46:11,858 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-13 11:46:11,858 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-13 11:46:11,858 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 11:46:11,859 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 11:46:11,859 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 11:46:11,859 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 11:46:11,859 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-13 11:46:11,859 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df25530cebe2f8dbf5c0f407e5ccf4cecba61e3d44431cb17b70a57441db534c [2024-10-13 11:46:12,133 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 11:46:12,155 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 11:46:12,158 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 11:46:12,159 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 11:46:12,160 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 11:46:12,161 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i [2024-10-13 11:46:13,475 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 11:46:13,746 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 11:46:13,747 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i [2024-10-13 11:46:13,766 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/305cddb55/de668a31a10648e19bec9f1c9b04db68/FLAG230cba380 [2024-10-13 11:46:14,046 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/305cddb55/de668a31a10648e19bec9f1c9b04db68 [2024-10-13 11:46:14,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 11:46:14,049 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 11:46:14,049 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 11:46:14,049 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 11:46:14,054 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 11:46:14,054 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:46:14" (1/1) ... [2024-10-13 11:46:14,055 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1af83b16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:46:14, skipping insertion in model container [2024-10-13 11:46:14,055 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:46:14" (1/1) ... [2024-10-13 11:46:14,102 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 11:46:14,559 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 11:46:14,569 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-10-13 11:46:14,575 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 11:46:14,658 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 11:46:14,662 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 11:46:14,750 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 11:46:14,782 INFO L204 MainTranslator]: Completed translation [2024-10-13 11:46:14,782 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:46:14 WrapperNode [2024-10-13 11:46:14,782 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 11:46:14,783 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 11:46:14,783 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 11:46:14,783 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 11:46:14,788 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:46:14" (1/1) ... [2024-10-13 11:46:14,812 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:46:14" (1/1) ... [2024-10-13 11:46:14,863 INFO L138 Inliner]: procedures = 180, calls = 375, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1445 [2024-10-13 11:46:14,864 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 11:46:14,865 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 11:46:14,865 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 11:46:14,865 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 11:46:14,875 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:46:14" (1/1) ... [2024-10-13 11:46:14,875 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:46:14" (1/1) ... [2024-10-13 11:46:14,884 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:46:14" (1/1) ... [2024-10-13 11:46:14,958 INFO L175 MemorySlicer]: Split 349 memory accesses to 3 slices as follows [2, 323, 24]. 93 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 83 writes are split as follows [0, 82, 1]. [2024-10-13 11:46:14,958 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:46:14" (1/1) ... [2024-10-13 11:46:14,959 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:46:14" (1/1) ... [2024-10-13 11:46:14,997 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:46:14" (1/1) ... [2024-10-13 11:46:15,004 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:46:14" (1/1) ... [2024-10-13 11:46:15,014 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:46:14" (1/1) ... [2024-10-13 11:46:15,024 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:46:14" (1/1) ... [2024-10-13 11:46:15,049 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 11:46:15,050 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 11:46:15,050 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 11:46:15,050 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 11:46:15,050 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:46:14" (1/1) ... [2024-10-13 11:46:15,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 11:46:15,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 11:46:15,075 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 11:46:15,079 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 11:46:15,111 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-10-13 11:46:15,111 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-10-13 11:46:15,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-10-13 11:46:15,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-10-13 11:46:15,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-10-13 11:46:15,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-13 11:46:15,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-13 11:46:15,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-13 11:46:15,112 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-13 11:46:15,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-13 11:46:15,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-10-13 11:46:15,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-10-13 11:46:15,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-10-13 11:46:15,112 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-10-13 11:46:15,112 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-10-13 11:46:15,112 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-10-13 11:46:15,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-13 11:46:15,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 11:46:15,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-13 11:46:15,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-13 11:46:15,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-13 11:46:15,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-13 11:46:15,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-13 11:46:15,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-13 11:46:15,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-13 11:46:15,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-13 11:46:15,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-13 11:46:15,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-13 11:46:15,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-13 11:46:15,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-13 11:46:15,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-13 11:46:15,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-13 11:46:15,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 11:46:15,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 11:46:15,277 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 11:46:15,279 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 11:46:15,297 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-13 11:46:15,323 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-13 11:46:15,341 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-13 11:46:19,178 INFO L? ?]: Removed 1482 outVars from TransFormulas that were not future-live. [2024-10-13 11:46:19,178 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 11:46:19,367 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 11:46:19,367 INFO L314 CfgBuilder]: Removed 83 assume(true) statements. [2024-10-13 11:46:19,368 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:46:19 BoogieIcfgContainer [2024-10-13 11:46:19,371 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 11:46:19,373 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 11:46:19,373 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 11:46:19,376 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 11:46:19,376 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:46:14" (1/3) ... [2024-10-13 11:46:19,377 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a7c056f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:46:19, skipping insertion in model container [2024-10-13 11:46:19,377 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:46:14" (2/3) ... [2024-10-13 11:46:19,377 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a7c056f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:46:19, skipping insertion in model container [2024-10-13 11:46:19,378 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:46:19" (3/3) ... [2024-10-13 11:46:19,379 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test5-1.i [2024-10-13 11:46:19,392 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 11:46:19,393 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 712 error locations. [2024-10-13 11:46:19,454 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 11:46:19,459 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;@6b669908, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 11:46:19,460 INFO L334 AbstractCegarLoop]: Starting to check reachability of 712 error locations. [2024-10-13 11:46:19,470 INFO L276 IsEmpty]: Start isEmpty. Operand has 1304 states, 581 states have (on average 2.5008605851979344) internal successors, (1453), 1294 states have internal predecessors, (1453), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-13 11:46:19,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-13 11:46:19,476 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:46:19,477 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-13 11:46:19,477 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-10-13 11:46:19,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:46:19,482 INFO L85 PathProgramCache]: Analyzing trace with hash 69339645, now seen corresponding path program 1 times [2024-10-13 11:46:19,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:46:19,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1070499694] [2024-10-13 11:46:19,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:46:19,492 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 11:46:19,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:46:19,495 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 11:46:19,496 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 11:46:19,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:46:19,624 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-13 11:46:19,628 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:46:19,633 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 11:46:19,633 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:46:19,634 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:46:19,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1070499694] [2024-10-13 11:46:19,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1070499694] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:46:19,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:46:19,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 11:46:19,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821228998] [2024-10-13 11:46:19,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:46:19,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 11:46:19,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:46:19,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 11:46:19,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 11:46:19,663 INFO L87 Difference]: Start difference. First operand has 1304 states, 581 states have (on average 2.5008605851979344) internal successors, (1453), 1294 states have internal predecessors, (1453), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 11:46:20,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:46:20,362 INFO L93 Difference]: Finished difference Result 1284 states and 1366 transitions. [2024-10-13 11:46:20,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 11:46:20,365 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2024-10-13 11:46:20,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:46:20,381 INFO L225 Difference]: With dead ends: 1284 [2024-10-13 11:46:20,381 INFO L226 Difference]: Without dead ends: 1283 [2024-10-13 11:46:20,382 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 11:46:20,385 INFO L432 NwaCegarLoop]: 1227 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1227 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-13 11:46:20,386 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1227 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-13 11:46:20,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1283 states. [2024-10-13 11:46:20,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1283 to 1283. [2024-10-13 11:46:20,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1283 states, 572 states have (on average 2.3444055944055946) internal successors, (1341), 1273 states have internal predecessors, (1341), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-13 11:46:20,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 1365 transitions. [2024-10-13 11:46:20,467 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 1365 transitions. Word has length 4 [2024-10-13 11:46:20,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:46:20,467 INFO L471 AbstractCegarLoop]: Abstraction has 1283 states and 1365 transitions. [2024-10-13 11:46:20,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 11:46:20,467 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 1365 transitions. [2024-10-13 11:46:20,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-13 11:46:20,468 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:46:20,468 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-13 11:46:20,472 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 11:46:20,670 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 11:46:20,671 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-10-13 11:46:20,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:46:20,671 INFO L85 PathProgramCache]: Analyzing trace with hash 69339707, now seen corresponding path program 1 times [2024-10-13 11:46:20,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:46:20,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [595902628] [2024-10-13 11:46:20,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:46:20,672 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 11:46:20,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:46:20,674 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 11:46:20,674 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 11:46:20,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:46:20,795 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 11:46:20,797 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:46:20,823 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 11:46:20,834 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 11:46:20,835 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:46:20,835 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:46:20,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [595902628] [2024-10-13 11:46:20,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [595902628] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:46:20,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:46:20,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 11:46:20,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125069030] [2024-10-13 11:46:20,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:46:20,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 11:46:20,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:46:20,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 11:46:20,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 11:46:20,840 INFO L87 Difference]: Start difference. First operand 1283 states and 1365 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 11:46:22,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:46:22,487 INFO L93 Difference]: Finished difference Result 1398 states and 1512 transitions. [2024-10-13 11:46:22,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 11:46:22,488 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2024-10-13 11:46:22,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:46:22,493 INFO L225 Difference]: With dead ends: 1398 [2024-10-13 11:46:22,494 INFO L226 Difference]: Without dead ends: 1398 [2024-10-13 11:46:22,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 11:46:22,495 INFO L432 NwaCegarLoop]: 788 mSDtfsCounter, 1129 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 929 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1140 SdHoareTripleChecker+Valid, 942 SdHoareTripleChecker+Invalid, 1028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-13 11:46:22,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1140 Valid, 942 Invalid, 1028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 929 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-13 11:46:22,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1398 states. [2024-10-13 11:46:22,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1398 to 1191. [2024-10-13 11:46:22,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1191 states, 572 states have (on average 2.1835664335664338) internal successors, (1249), 1181 states have internal predecessors, (1249), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-13 11:46:22,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1191 states to 1191 states and 1273 transitions. [2024-10-13 11:46:22,534 INFO L78 Accepts]: Start accepts. Automaton has 1191 states and 1273 transitions. Word has length 4 [2024-10-13 11:46:22,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:46:22,535 INFO L471 AbstractCegarLoop]: Abstraction has 1191 states and 1273 transitions. [2024-10-13 11:46:22,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 11:46:22,535 INFO L276 IsEmpty]: Start isEmpty. Operand 1191 states and 1273 transitions. [2024-10-13 11:46:22,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-13 11:46:22,535 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:46:22,536 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-13 11:46:22,543 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-10-13 11:46:22,738 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 11:46:22,739 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-10-13 11:46:22,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:46:22,739 INFO L85 PathProgramCache]: Analyzing trace with hash 69339708, now seen corresponding path program 1 times [2024-10-13 11:46:22,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:46:22,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1664528598] [2024-10-13 11:46:22,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:46:22,740 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 11:46:22,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:46:22,742 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 11:46:22,743 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 11:46:22,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:46:22,830 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 11:46:22,831 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:46:22,838 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 11:46:22,849 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 11:46:22,850 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:46:22,850 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:46:22,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1664528598] [2024-10-13 11:46:22,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1664528598] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:46:22,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:46:22,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 11:46:22,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338232877] [2024-10-13 11:46:22,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:46:22,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 11:46:22,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:46:22,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 11:46:22,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 11:46:22,851 INFO L87 Difference]: Start difference. First operand 1191 states and 1273 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 11:46:25,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:46:25,262 INFO L93 Difference]: Finished difference Result 1678 states and 1810 transitions. [2024-10-13 11:46:25,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 11:46:25,263 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2024-10-13 11:46:25,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:46:25,267 INFO L225 Difference]: With dead ends: 1678 [2024-10-13 11:46:25,267 INFO L226 Difference]: Without dead ends: 1678 [2024-10-13 11:46:25,268 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 11:46:25,268 INFO L432 NwaCegarLoop]: 1095 mSDtfsCounter, 691 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 1026 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 1584 SdHoareTripleChecker+Invalid, 1051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-13 11:46:25,268 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [696 Valid, 1584 Invalid, 1051 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1026 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-13 11:46:25,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1678 states. [2024-10-13 11:46:25,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1678 to 1320. [2024-10-13 11:46:25,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 711 states have (on average 2.1533052039381153) internal successors, (1531), 1310 states have internal predecessors, (1531), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-13 11:46:25,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 1555 transitions. [2024-10-13 11:46:25,289 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 1555 transitions. Word has length 4 [2024-10-13 11:46:25,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:46:25,289 INFO L471 AbstractCegarLoop]: Abstraction has 1320 states and 1555 transitions. [2024-10-13 11:46:25,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 11:46:25,290 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 1555 transitions. [2024-10-13 11:46:25,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-13 11:46:25,290 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:46:25,290 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-13 11:46:25,294 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-10-13 11:46:25,493 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 11:46:25,493 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr620REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-10-13 11:46:25,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:46:25,493 INFO L85 PathProgramCache]: Analyzing trace with hash -2143776862, now seen corresponding path program 1 times [2024-10-13 11:46:25,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:46:25,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1181974768] [2024-10-13 11:46:25,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:46:25,494 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 11:46:25,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:46:25,495 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 11:46:25,497 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 11:46:25,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:46:25,579 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 11:46:25,580 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:46:25,588 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 11:46:25,588 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:46:25,589 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:46:25,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1181974768] [2024-10-13 11:46:25,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1181974768] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:46:25,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:46:25,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 11:46:25,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217405688] [2024-10-13 11:46:25,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:46:25,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 11:46:25,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:46:25,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 11:46:25,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 11:46:25,594 INFO L87 Difference]: Start difference. First operand 1320 states and 1555 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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 11:46:26,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:46:26,494 INFO L93 Difference]: Finished difference Result 2624 states and 3094 transitions. [2024-10-13 11:46:26,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 11:46:26,496 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2024-10-13 11:46:26,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:46:26,504 INFO L225 Difference]: With dead ends: 2624 [2024-10-13 11:46:26,504 INFO L226 Difference]: Without dead ends: 2624 [2024-10-13 11:46:26,504 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 11:46:26,506 INFO L432 NwaCegarLoop]: 1339 mSDtfsCounter, 1222 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1233 SdHoareTripleChecker+Valid, 2455 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-13 11:46:26,507 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1233 Valid, 2455 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-13 11:46:26,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2624 states. [2024-10-13 11:46:26,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2624 to 1322. [2024-10-13 11:46:26,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1322 states, 713 states have (on average 2.150070126227209) internal successors, (1533), 1312 states have internal predecessors, (1533), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-13 11:46:26,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 1557 transitions. [2024-10-13 11:46:26,535 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 1557 transitions. Word has length 5 [2024-10-13 11:46:26,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:46:26,536 INFO L471 AbstractCegarLoop]: Abstraction has 1322 states and 1557 transitions. [2024-10-13 11:46:26,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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 11:46:26,537 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 1557 transitions. [2024-10-13 11:46:26,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-13 11:46:26,537 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:46:26,537 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 11:46:26,542 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-10-13 11:46:26,738 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 11:46:26,738 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-10-13 11:46:26,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:46:26,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1077155845, now seen corresponding path program 1 times [2024-10-13 11:46:26,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:46:26,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1805634534] [2024-10-13 11:46:26,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:46:26,739 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 11:46:26,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:46:26,741 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 11:46:26,742 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 11:46:26,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:46:26,852 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 11:46:26,853 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:46:26,860 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 11:46:26,860 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:46:26,861 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:46:26,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1805634534] [2024-10-13 11:46:26,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1805634534] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:46:26,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:46:26,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 11:46:26,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235876458] [2024-10-13 11:46:26,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:46:26,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 11:46:26,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:46:26,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 11:46:26,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 11:46:26,862 INFO L87 Difference]: Start difference. First operand 1322 states and 1557 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) 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 11:46:27,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:46:27,428 INFO L93 Difference]: Finished difference Result 1283 states and 1517 transitions. [2024-10-13 11:46:27,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 11:46:27,430 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) 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 11:46:27,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:46:27,433 INFO L225 Difference]: With dead ends: 1283 [2024-10-13 11:46:27,433 INFO L226 Difference]: Without dead ends: 1283 [2024-10-13 11:46:27,433 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 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 11:46:27,434 INFO L432 NwaCegarLoop]: 1076 mSDtfsCounter, 61 mSDsluCounter, 1034 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 2110 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-13 11:46:27,434 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 2110 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-13 11:46:27,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1283 states. [2024-10-13 11:46:27,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1283 to 1283. [2024-10-13 11:46:27,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1283 states, 698 states have (on average 2.138968481375358) internal successors, (1493), 1273 states have internal predecessors, (1493), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-13 11:46:27,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 1517 transitions. [2024-10-13 11:46:27,449 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 1517 transitions. Word has length 10 [2024-10-13 11:46:27,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:46:27,449 INFO L471 AbstractCegarLoop]: Abstraction has 1283 states and 1517 transitions. [2024-10-13 11:46:27,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) 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 11:46:27,449 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 1517 transitions. [2024-10-13 11:46:27,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-13 11:46:27,449 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:46:27,450 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 11:46:27,454 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 11:46:27,653 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 11:46:27,653 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-10-13 11:46:27,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:46:27,654 INFO L85 PathProgramCache]: Analyzing trace with hash 59645407, now seen corresponding path program 1 times [2024-10-13 11:46:27,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:46:27,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [878532740] [2024-10-13 11:46:27,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:46:27,654 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 11:46:27,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:46:27,655 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 11:46:27,657 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 11:46:27,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:46:27,769 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 11:46:27,771 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:46:27,785 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 11:46:27,785 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:46:27,785 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:46:27,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [878532740] [2024-10-13 11:46:27,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [878532740] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:46:27,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:46:27,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 11:46:27,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630703742] [2024-10-13 11:46:27,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:46:27,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 11:46:27,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:46:27,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 11:46:27,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 11:46:27,786 INFO L87 Difference]: Start difference. First operand 1283 states and 1517 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 11:46:28,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:46:28,536 INFO L93 Difference]: Finished difference Result 1268 states and 1495 transitions. [2024-10-13 11:46:28,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 11:46:28,537 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-10-13 11:46:28,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:46:28,540 INFO L225 Difference]: With dead ends: 1268 [2024-10-13 11:46:28,540 INFO L226 Difference]: Without dead ends: 1268 [2024-10-13 11:46:28,541 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 11:46:28,541 INFO L432 NwaCegarLoop]: 1045 mSDtfsCounter, 45 mSDsluCounter, 2072 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 3117 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-13 11:46:28,541 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 3117 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-13 11:46:28,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1268 states. [2024-10-13 11:46:28,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1268 to 1268. [2024-10-13 11:46:28,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 697 states have (on average 2.110473457675753) internal successors, (1471), 1258 states have internal predecessors, (1471), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-13 11:46:28,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 1495 transitions. [2024-10-13 11:46:28,554 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 1495 transitions. Word has length 12 [2024-10-13 11:46:28,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:46:28,555 INFO L471 AbstractCegarLoop]: Abstraction has 1268 states and 1495 transitions. [2024-10-13 11:46:28,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 11:46:28,555 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 1495 transitions. [2024-10-13 11:46:28,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-13 11:46:28,556 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:46:28,556 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] [2024-10-13 11:46:28,560 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 11:46:28,756 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 11:46:28,756 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-10-13 11:46:28,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:46:28,757 INFO L85 PathProgramCache]: Analyzing trace with hash -578247475, now seen corresponding path program 1 times [2024-10-13 11:46:28,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:46:28,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [936090248] [2024-10-13 11:46:28,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:46:28,757 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 11:46:28,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:46:28,758 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 11:46:28,760 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 11:46:28,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:46:28,870 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 11:46:28,872 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:46:28,876 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 11:46:28,925 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 11:46:28,925 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:46:28,925 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:46:28,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [936090248] [2024-10-13 11:46:28,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [936090248] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:46:28,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:46:28,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 11:46:28,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242652678] [2024-10-13 11:46:28,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:46:28,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 11:46:28,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:46:28,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 11:46:28,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 11:46:28,926 INFO L87 Difference]: Start difference. First operand 1268 states and 1495 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 11:46:30,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:46:30,685 INFO L93 Difference]: Finished difference Result 1268 states and 1495 transitions. [2024-10-13 11:46:30,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 11:46:30,685 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 26 [2024-10-13 11:46:30,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:46:30,688 INFO L225 Difference]: With dead ends: 1268 [2024-10-13 11:46:30,688 INFO L226 Difference]: Without dead ends: 1268 [2024-10-13 11:46:30,689 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 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 11:46:30,689 INFO L432 NwaCegarLoop]: 539 mSDtfsCounter, 1073 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 1437 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1084 SdHoareTripleChecker+Valid, 1029 SdHoareTripleChecker+Invalid, 1448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-13 11:46:30,689 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1084 Valid, 1029 Invalid, 1448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1437 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-13 11:46:30,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1268 states. [2024-10-13 11:46:30,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1268 to 1264. [2024-10-13 11:46:30,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1264 states, 697 states have (on average 2.104734576757532) internal successors, (1467), 1254 states have internal predecessors, (1467), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-13 11:46:30,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 1491 transitions. [2024-10-13 11:46:30,704 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 1491 transitions. Word has length 26 [2024-10-13 11:46:30,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:46:30,705 INFO L471 AbstractCegarLoop]: Abstraction has 1264 states and 1491 transitions. [2024-10-13 11:46:30,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 11:46:30,705 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 1491 transitions. [2024-10-13 11:46:30,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-13 11:46:30,705 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:46:30,706 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] [2024-10-13 11:46:30,711 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 11:46:30,906 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 11:46:30,907 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-10-13 11:46:30,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:46:30,907 INFO L85 PathProgramCache]: Analyzing trace with hash -578247474, now seen corresponding path program 1 times [2024-10-13 11:46:30,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:46:30,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1856053412] [2024-10-13 11:46:30,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:46:30,908 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 11:46:30,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:46:30,910 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 11:46:30,911 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 11:46:31,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:46:31,020 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-13 11:46:31,022 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:46:31,035 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 11:46:31,155 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 11:46:31,155 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:46:31,155 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:46:31,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1856053412] [2024-10-13 11:46:31,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1856053412] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:46:31,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:46:31,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 11:46:31,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750060385] [2024-10-13 11:46:31,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:46:31,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 11:46:31,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:46:31,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 11:46:31,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 11:46:31,157 INFO L87 Difference]: Start difference. First operand 1264 states and 1491 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 11:46:33,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:46:33,704 INFO L93 Difference]: Finished difference Result 1623 states and 1747 transitions. [2024-10-13 11:46:33,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 11:46:33,704 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 26 [2024-10-13 11:46:33,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:46:33,708 INFO L225 Difference]: With dead ends: 1623 [2024-10-13 11:46:33,708 INFO L226 Difference]: Without dead ends: 1623 [2024-10-13 11:46:33,708 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 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 11:46:33,709 INFO L432 NwaCegarLoop]: 844 mSDtfsCounter, 631 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 1618 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 1829 SdHoareTripleChecker+Invalid, 1621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-13 11:46:33,709 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [636 Valid, 1829 Invalid, 1621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1618 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-13 11:46:33,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1623 states. [2024-10-13 11:46:33,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1623 to 1260. [2024-10-13 11:46:33,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1260 states, 697 states have (on average 2.0989956958393114) internal successors, (1463), 1250 states have internal predecessors, (1463), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-13 11:46:33,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1260 states to 1260 states and 1487 transitions. [2024-10-13 11:46:33,723 INFO L78 Accepts]: Start accepts. Automaton has 1260 states and 1487 transitions. Word has length 26 [2024-10-13 11:46:33,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:46:33,723 INFO L471 AbstractCegarLoop]: Abstraction has 1260 states and 1487 transitions. [2024-10-13 11:46:33,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 11:46:33,724 INFO L276 IsEmpty]: Start isEmpty. Operand 1260 states and 1487 transitions. [2024-10-13 11:46:33,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-13 11:46:33,724 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:46:33,724 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] [2024-10-13 11:46:33,732 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-10-13 11:46:33,925 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 11:46:33,925 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-10-13 11:46:33,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:46:33,925 INFO L85 PathProgramCache]: Analyzing trace with hash 649968199, now seen corresponding path program 1 times [2024-10-13 11:46:33,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:46:33,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1980933062] [2024-10-13 11:46:33,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:46:33,926 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 11:46:33,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:46:33,929 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 11:46:33,929 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 11:46:34,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:46:34,090 INFO L255 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 11:46:34,092 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:46:34,130 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 11:46:34,131 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:46:34,131 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:46:34,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1980933062] [2024-10-13 11:46:34,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1980933062] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:46:34,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:46:34,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 11:46:34,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737656660] [2024-10-13 11:46:34,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:46:34,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 11:46:34,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:46:34,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 11:46:34,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 11:46:34,132 INFO L87 Difference]: Start difference. First operand 1260 states and 1487 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 11:46:34,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:46:34,826 INFO L93 Difference]: Finished difference Result 1254 states and 1477 transitions. [2024-10-13 11:46:34,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 11:46:34,827 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 42 [2024-10-13 11:46:34,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:46:34,831 INFO L225 Difference]: With dead ends: 1254 [2024-10-13 11:46:34,831 INFO L226 Difference]: Without dead ends: 1254 [2024-10-13 11:46:34,831 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 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 11:46:34,832 INFO L432 NwaCegarLoop]: 1039 mSDtfsCounter, 15 mSDsluCounter, 2061 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 3100 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-13 11:46:34,832 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 3100 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-13 11:46:34,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1254 states. [2024-10-13 11:46:34,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1254 to 1254. [2024-10-13 11:46:34,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1254 states, 691 states have (on average 2.1027496382054993) internal successors, (1453), 1244 states have internal predecessors, (1453), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-13 11:46:34,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1254 states to 1254 states and 1477 transitions. [2024-10-13 11:46:34,848 INFO L78 Accepts]: Start accepts. Automaton has 1254 states and 1477 transitions. Word has length 42 [2024-10-13 11:46:34,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:46:34,848 INFO L471 AbstractCegarLoop]: Abstraction has 1254 states and 1477 transitions. [2024-10-13 11:46:34,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 11:46:34,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1254 states and 1477 transitions. [2024-10-13 11:46:34,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-10-13 11:46:34,849 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:46:34,849 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] [2024-10-13 11:46:34,857 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-10-13 11:46:35,053 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 11:46:35,054 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-10-13 11:46:35,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:46:35,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1995728295, now seen corresponding path program 1 times [2024-10-13 11:46:35,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:46:35,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [39319525] [2024-10-13 11:46:35,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:46:35,055 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 11:46:35,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:46:35,061 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 11:46:35,062 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 11:46:35,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:46:35,219 INFO L255 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 11:46:35,221 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:46:35,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:46:35,382 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:46:35,382 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:46:35,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [39319525] [2024-10-13 11:46:35,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [39319525] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:46:35,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:46:35,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 11:46:35,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069627535] [2024-10-13 11:46:35,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:46:35,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 11:46:35,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:46:35,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 11:46:35,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 11:46:35,384 INFO L87 Difference]: Start difference. First operand 1254 states and 1477 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 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 11:46:35,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:46:35,932 INFO L93 Difference]: Finished difference Result 1297 states and 1520 transitions. [2024-10-13 11:46:35,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 11:46:35,933 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 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 46 [2024-10-13 11:46:35,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:46:35,937 INFO L225 Difference]: With dead ends: 1297 [2024-10-13 11:46:35,938 INFO L226 Difference]: Without dead ends: 1297 [2024-10-13 11:46:35,938 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 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 11:46:35,938 INFO L432 NwaCegarLoop]: 1054 mSDtfsCounter, 0 mSDsluCounter, 1028 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2082 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-13 11:46:35,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2082 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-13 11:46:35,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1297 states. [2024-10-13 11:46:35,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1297 to 1297. [2024-10-13 11:46:35,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1297 states, 734 states have (on average 2.0381471389645776) internal successors, (1496), 1287 states have internal predecessors, (1496), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-13 11:46:35,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1297 states to 1297 states and 1520 transitions. [2024-10-13 11:46:35,951 INFO L78 Accepts]: Start accepts. Automaton has 1297 states and 1520 transitions. Word has length 46 [2024-10-13 11:46:35,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:46:35,952 INFO L471 AbstractCegarLoop]: Abstraction has 1297 states and 1520 transitions. [2024-10-13 11:46:35,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 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 11:46:35,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1297 states and 1520 transitions. [2024-10-13 11:46:35,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-13 11:46:35,953 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:46:35,953 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] [2024-10-13 11:46:35,960 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 11:46:36,153 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 11:46:36,153 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-10-13 11:46:36,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:46:36,154 INFO L85 PathProgramCache]: Analyzing trace with hash -598097142, now seen corresponding path program 1 times [2024-10-13 11:46:36,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:46:36,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [970020313] [2024-10-13 11:46:36,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:46:36,155 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 11:46:36,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:46:36,157 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 11:46:36,158 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 11:46:36,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:46:36,381 INFO L255 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 11:46:36,385 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:46:36,391 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 11:46:36,398 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 11:46:36,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 11:46:36,708 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 11:46:36,725 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-13 11:46:36,725 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 11:46:36,738 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 11:46:36,738 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:46:36,738 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:46:36,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [970020313] [2024-10-13 11:46:36,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [970020313] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:46:36,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:46:36,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 11:46:36,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959585075] [2024-10-13 11:46:36,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:46:36,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 11:46:36,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:46:36,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 11:46:36,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 11:46:36,740 INFO L87 Difference]: Start difference. First operand 1297 states and 1520 transitions. Second operand has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 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 11:46:38,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:46:38,293 INFO L93 Difference]: Finished difference Result 1213 states and 1436 transitions. [2024-10-13 11:46:38,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 11:46:38,294 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 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 49 [2024-10-13 11:46:38,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:46:38,296 INFO L225 Difference]: With dead ends: 1213 [2024-10-13 11:46:38,296 INFO L226 Difference]: Without dead ends: 1213 [2024-10-13 11:46:38,297 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 46 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 11:46:38,297 INFO L432 NwaCegarLoop]: 297 mSDtfsCounter, 1009 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 841 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1020 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 841 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-13 11:46:38,297 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1020 Valid, 313 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 841 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-13 11:46:38,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2024-10-13 11:46:38,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 1074. [2024-10-13 11:46:38,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1074 states, 595 states have (on average 1.8823529411764706) internal successors, (1120), 1064 states have internal predecessors, (1120), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-13 11:46:38,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1074 states to 1074 states and 1144 transitions. [2024-10-13 11:46:38,307 INFO L78 Accepts]: Start accepts. Automaton has 1074 states and 1144 transitions. Word has length 49 [2024-10-13 11:46:38,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:46:38,307 INFO L471 AbstractCegarLoop]: Abstraction has 1074 states and 1144 transitions. [2024-10-13 11:46:38,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 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 11:46:38,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1074 states and 1144 transitions. [2024-10-13 11:46:38,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-13 11:46:38,308 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:46:38,308 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 11:46:38,317 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2024-10-13 11:46:38,509 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 11:46:38,509 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-10-13 11:46:38,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:46:38,510 INFO L85 PathProgramCache]: Analyzing trace with hash 867084466, now seen corresponding path program 1 times [2024-10-13 11:46:38,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:46:38,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1611818716] [2024-10-13 11:46:38,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:46:38,512 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 11:46:38,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:46:38,516 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 11:46:38,517 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 11:46:38,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:46:38,731 INFO L255 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-13 11:46:38,734 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:46:38,745 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 11:46:38,757 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 11:46:38,772 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 11:46:38,779 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 11:46:38,780 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:46:38,780 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:46:38,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1611818716] [2024-10-13 11:46:38,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1611818716] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:46:38,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:46:38,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 11:46:38,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498692978] [2024-10-13 11:46:38,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:46:38,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 11:46:38,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:46:38,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 11:46:38,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 11:46:38,782 INFO L87 Difference]: Start difference. First operand 1074 states and 1144 transitions. Second operand has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 11:46:40,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:46:40,718 INFO L93 Difference]: Finished difference Result 1073 states and 1143 transitions. [2024-10-13 11:46:40,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 11:46:40,718 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2024-10-13 11:46:40,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:46:40,721 INFO L225 Difference]: With dead ends: 1073 [2024-10-13 11:46:40,721 INFO L226 Difference]: Without dead ends: 1073 [2024-10-13 11:46:40,721 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 49 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 11:46:40,721 INFO L432 NwaCegarLoop]: 967 mSDtfsCounter, 2 mSDsluCounter, 1579 mSDsCounter, 0 mSdLazyCounter, 1838 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2546 SdHoareTripleChecker+Invalid, 1839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-13 11:46:40,721 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2546 Invalid, 1839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1838 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-13 11:46:40,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2024-10-13 11:46:40,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 1073. [2024-10-13 11:46:40,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1073 states, 595 states have (on average 1.880672268907563) internal successors, (1119), 1063 states have internal predecessors, (1119), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-13 11:46:40,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1073 states to 1073 states and 1143 transitions. [2024-10-13 11:46:40,731 INFO L78 Accepts]: Start accepts. Automaton has 1073 states and 1143 transitions. Word has length 53 [2024-10-13 11:46:40,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:46:40,731 INFO L471 AbstractCegarLoop]: Abstraction has 1073 states and 1143 transitions. [2024-10-13 11:46:40,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 11:46:40,731 INFO L276 IsEmpty]: Start isEmpty. Operand 1073 states and 1143 transitions. [2024-10-13 11:46:40,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-13 11:46:40,731 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:46:40,731 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 11:46:40,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2024-10-13 11:46:40,935 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 11:46:40,936 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr67REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-10-13 11:46:40,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:46:40,936 INFO L85 PathProgramCache]: Analyzing trace with hash 867084467, now seen corresponding path program 1 times [2024-10-13 11:46:40,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:46:40,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1406815646] [2024-10-13 11:46:40,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:46:40,937 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 11:46:40,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:46:40,937 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 11:46:40,938 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 11:46:41,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:46:41,123 INFO L255 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-13 11:46:41,125 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:46:41,132 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 11:46:41,147 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 11:46:41,150 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 11:46:41,185 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 11:46:41,202 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 11:46:41,202 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:46:41,202 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:46:41,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1406815646] [2024-10-13 11:46:41,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1406815646] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:46:41,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:46:41,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 11:46:41,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648334957] [2024-10-13 11:46:41,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:46:41,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 11:46:41,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:46:41,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 11:46:41,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 11:46:41,203 INFO L87 Difference]: Start difference. First operand 1073 states and 1143 transitions. Second operand has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 11:46:43,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:46:43,544 INFO L93 Difference]: Finished difference Result 1072 states and 1142 transitions. [2024-10-13 11:46:43,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 11:46:43,545 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2024-10-13 11:46:43,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:46:43,547 INFO L225 Difference]: With dead ends: 1072 [2024-10-13 11:46:43,547 INFO L226 Difference]: Without dead ends: 1072 [2024-10-13 11:46:43,547 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 49 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 11:46:43,548 INFO L432 NwaCegarLoop]: 967 mSDtfsCounter, 1 mSDsluCounter, 1601 mSDsCounter, 0 mSdLazyCounter, 1813 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2568 SdHoareTripleChecker+Invalid, 1814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-13 11:46:43,548 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2568 Invalid, 1814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1813 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-13 11:46:43,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2024-10-13 11:46:43,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2024-10-13 11:46:43,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 594 states have (on average 1.8821548821548821) internal successors, (1118), 1062 states have internal predecessors, (1118), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-13 11:46:43,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1142 transitions. [2024-10-13 11:46:43,557 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1142 transitions. Word has length 53 [2024-10-13 11:46:43,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:46:43,557 INFO L471 AbstractCegarLoop]: Abstraction has 1072 states and 1142 transitions. [2024-10-13 11:46:43,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 11:46:43,557 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1142 transitions. [2024-10-13 11:46:43,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-13 11:46:43,558 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:46:43,558 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] [2024-10-13 11:46:43,564 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 (14)] Forceful destruction successful, exit code 0 [2024-10-13 11:46:43,759 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 11:46:43,759 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-10-13 11:46:43,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:46:43,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1984124906, now seen corresponding path program 1 times [2024-10-13 11:46:43,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:46:43,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1437245447] [2024-10-13 11:46:43,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:46:43,760 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 11:46:43,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:46:43,762 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 11:46:43,763 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 11:46:43,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:46:43,960 INFO L255 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 11:46:43,962 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:46:43,982 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 11:46:43,983 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:46:43,983 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:46:43,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1437245447] [2024-10-13 11:46:43,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1437245447] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:46:43,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:46:43,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 11:46:43,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903637044] [2024-10-13 11:46:43,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:46:43,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 11:46:43,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:46:43,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 11:46:43,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 11:46:43,987 INFO L87 Difference]: Start difference. First operand 1072 states and 1142 transitions. Second operand has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 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 11:46:44,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:46:44,660 INFO L93 Difference]: Finished difference Result 1074 states and 1146 transitions. [2024-10-13 11:46:44,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 11:46:44,660 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 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 59 [2024-10-13 11:46:44,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:46:44,664 INFO L225 Difference]: With dead ends: 1074 [2024-10-13 11:46:44,664 INFO L226 Difference]: Without dead ends: 1074 [2024-10-13 11:46:44,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 56 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 11:46:44,664 INFO L432 NwaCegarLoop]: 966 mSDtfsCounter, 0 mSDsluCounter, 1926 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2892 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-13 11:46:44,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2892 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-13 11:46:44,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2024-10-13 11:46:44,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 1074. [2024-10-13 11:46:44,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1074 states, 595 states have (on average 1.8823529411764706) internal successors, (1120), 1064 states have internal predecessors, (1120), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2024-10-13 11:46:44,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1074 states to 1074 states and 1146 transitions. [2024-10-13 11:46:44,675 INFO L78 Accepts]: Start accepts. Automaton has 1074 states and 1146 transitions. Word has length 59 [2024-10-13 11:46:44,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:46:44,675 INFO L471 AbstractCegarLoop]: Abstraction has 1074 states and 1146 transitions. [2024-10-13 11:46:44,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 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 11:46:44,676 INFO L276 IsEmpty]: Start isEmpty. Operand 1074 states and 1146 transitions. [2024-10-13 11:46:44,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-13 11:46:44,676 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:46:44,676 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] [2024-10-13 11:46:44,684 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 11:46:44,880 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 11:46:44,881 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-10-13 11:46:44,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:46:44,881 INFO L85 PathProgramCache]: Analyzing trace with hash -2004316798, now seen corresponding path program 1 times [2024-10-13 11:46:44,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:46:44,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1259633429] [2024-10-13 11:46:44,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:46:44,882 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 11:46:44,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:46:44,884 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 11:46:44,885 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 11:46:45,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:46:45,074 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 11:46:45,075 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:46:45,102 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 11:46:45,102 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 11:46:45,153 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 11:46:45,156 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:46:45,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1259633429] [2024-10-13 11:46:45,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1259633429] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 11:46:45,157 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 11:46:45,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-10-13 11:46:45,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832753623] [2024-10-13 11:46:45,157 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 11:46:45,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 11:46:45,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:46:45,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 11:46:45,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-13 11:46:45,158 INFO L87 Difference]: Start difference. First operand 1074 states and 1146 transitions. Second operand has 8 states, 6 states have (on average 10.166666666666666) internal successors, (61), 8 states have internal predecessors, (61), 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 11:46:46,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:46:46,137 INFO L93 Difference]: Finished difference Result 1083 states and 1161 transitions. [2024-10-13 11:46:46,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 11:46:46,138 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 10.166666666666666) internal successors, (61), 8 states have internal predecessors, (61), 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 60 [2024-10-13 11:46:46,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:46:46,141 INFO L225 Difference]: With dead ends: 1083 [2024-10-13 11:46:46,141 INFO L226 Difference]: Without dead ends: 1083 [2024-10-13 11:46:46,141 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 112 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 11:46:46,141 INFO L432 NwaCegarLoop]: 964 mSDtfsCounter, 4 mSDsluCounter, 2884 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3848 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-13 11:46:46,142 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 3848 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 569 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-13 11:46:46,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2024-10-13 11:46:46,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 1082. [2024-10-13 11:46:46,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1082 states, 602 states have (on average 1.8820598006644518) internal successors, (1133), 1071 states have internal predecessors, (1133), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2024-10-13 11:46:46,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1159 transitions. [2024-10-13 11:46:46,152 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1159 transitions. Word has length 60 [2024-10-13 11:46:46,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:46:46,152 INFO L471 AbstractCegarLoop]: Abstraction has 1082 states and 1159 transitions. [2024-10-13 11:46:46,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 10.166666666666666) internal successors, (61), 8 states have internal predecessors, (61), 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 11:46:46,153 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1159 transitions. [2024-10-13 11:46:46,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-13 11:46:46,153 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:46:46,153 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] [2024-10-13 11:46:46,160 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 11:46:46,353 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 11:46:46,354 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-10-13 11:46:46,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:46:46,354 INFO L85 PathProgramCache]: Analyzing trace with hash -801070314, now seen corresponding path program 2 times [2024-10-13 11:46:46,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:46:46,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1790333295] [2024-10-13 11:46:46,355 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 11:46:46,355 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 11:46:46,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:46:46,357 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 11:46:46,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-10-13 11:46:46,687 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 11:46:46,687 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 11:46:46,696 INFO L255 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-13 11:46:46,698 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:46:46,732 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 11:46:46,732 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 11:46:46,842 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 11:46:46,842 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:46:46,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1790333295] [2024-10-13 11:46:46,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1790333295] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 11:46:46,842 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 11:46:46,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-10-13 11:46:46,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104790463] [2024-10-13 11:46:46,842 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 11:46:46,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-13 11:46:46,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:46:46,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-13 11:46:46,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-10-13 11:46:46,844 INFO L87 Difference]: Start difference. First operand 1082 states and 1159 transitions. Second operand has 14 states, 12 states have (on average 5.583333333333333) internal successors, (67), 14 states have internal predecessors, (67), 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 11:46:48,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:46:48,428 INFO L93 Difference]: Finished difference Result 1094 states and 1179 transitions. [2024-10-13 11:46:48,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-13 11:46:48,428 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.583333333333333) internal successors, (67), 14 states have internal predecessors, (67), 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 63 [2024-10-13 11:46:48,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:46:48,431 INFO L225 Difference]: With dead ends: 1094 [2024-10-13 11:46:48,431 INFO L226 Difference]: Without dead ends: 1092 [2024-10-13 11:46:48,432 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2024-10-13 11:46:48,432 INFO L432 NwaCegarLoop]: 964 mSDtfsCounter, 7 mSDsluCounter, 5770 mSDsCounter, 0 mSdLazyCounter, 1070 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 6734 SdHoareTripleChecker+Invalid, 1087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-13 11:46:48,432 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 6734 Invalid, 1087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1070 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-13 11:46:48,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2024-10-13 11:46:48,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 1091. [2024-10-13 11:46:48,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1091 states, 611 states have (on average 1.873977086743044) internal successors, (1145), 1080 states have internal predecessors, (1145), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2024-10-13 11:46:48,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1091 states to 1091 states and 1171 transitions. [2024-10-13 11:46:48,445 INFO L78 Accepts]: Start accepts. Automaton has 1091 states and 1171 transitions. Word has length 63 [2024-10-13 11:46:48,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:46:48,445 INFO L471 AbstractCegarLoop]: Abstraction has 1091 states and 1171 transitions. [2024-10-13 11:46:48,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.583333333333333) internal successors, (67), 14 states have internal predecessors, (67), 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 11:46:48,445 INFO L276 IsEmpty]: Start isEmpty. Operand 1091 states and 1171 transitions. [2024-10-13 11:46:48,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-13 11:46:48,446 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:46:48,446 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] [2024-10-13 11:46:48,453 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 11:46:48,646 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 11:46:48,647 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-10-13 11:46:48,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:46:48,647 INFO L85 PathProgramCache]: Analyzing trace with hash -318354538, now seen corresponding path program 3 times [2024-10-13 11:46:48,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:46:48,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [254401577] [2024-10-13 11:46:48,647 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-13 11:46:48,647 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 11:46:48,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:46:48,648 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 11:46:48,649 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 11:46:49,183 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-10-13 11:46:49,183 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 11:46:49,194 INFO L255 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-13 11:46:49,196 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:46:49,295 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 11:46:49,295 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 11:46:49,660 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 11:46:49,661 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:46:49,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [254401577] [2024-10-13 11:46:49,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [254401577] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 11:46:49,661 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 11:46:49,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-10-13 11:46:49,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9549499] [2024-10-13 11:46:49,661 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 11:46:49,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-13 11:46:49,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:46:49,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-13 11:46:49,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-10-13 11:46:49,662 INFO L87 Difference]: Start difference. First operand 1091 states and 1171 transitions. Second operand has 26 states, 24 states have (on average 3.2916666666666665) internal successors, (79), 26 states have internal predecessors, (79), 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 11:46:53,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:46:53,358 INFO L93 Difference]: Finished difference Result 1112 states and 1207 transitions. [2024-10-13 11:46:53,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-10-13 11:46:53,358 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 3.2916666666666665) internal successors, (79), 26 states have internal predecessors, (79), 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 69 [2024-10-13 11:46:53,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:46:53,361 INFO L225 Difference]: With dead ends: 1112 [2024-10-13 11:46:53,361 INFO L226 Difference]: Without dead ends: 1109 [2024-10-13 11:46:53,362 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2024-10-13 11:46:53,362 INFO L432 NwaCegarLoop]: 964 mSDtfsCounter, 13 mSDsluCounter, 11536 mSDsCounter, 0 mSdLazyCounter, 2241 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 12500 SdHoareTripleChecker+Invalid, 2252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-10-13 11:46:53,362 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 12500 Invalid, 2252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2241 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-10-13 11:46:53,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2024-10-13 11:46:53,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 1109. [2024-10-13 11:46:53,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1109 states, 629 states have (on average 1.8569157392686804) internal successors, (1168), 1098 states have internal predecessors, (1168), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2024-10-13 11:46:53,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1109 states to 1109 states and 1194 transitions. [2024-10-13 11:46:53,372 INFO L78 Accepts]: Start accepts. Automaton has 1109 states and 1194 transitions. Word has length 69 [2024-10-13 11:46:53,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:46:53,372 INFO L471 AbstractCegarLoop]: Abstraction has 1109 states and 1194 transitions. [2024-10-13 11:46:53,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 3.2916666666666665) internal successors, (79), 26 states have internal predecessors, (79), 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 11:46:53,373 INFO L276 IsEmpty]: Start isEmpty. Operand 1109 states and 1194 transitions. [2024-10-13 11:46:53,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-13 11:46:53,373 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:46:53,373 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] [2024-10-13 11:46:53,383 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2024-10-13 11:46:53,573 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 11:46:53,574 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-10-13 11:46:53,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:46:53,575 INFO L85 PathProgramCache]: Analyzing trace with hash -2028438378, now seen corresponding path program 4 times [2024-10-13 11:46:53,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:46:53,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1236239735] [2024-10-13 11:46:53,575 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-13 11:46:53,575 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 11:46:53,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:46:53,577 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 11:46:53,578 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 11:46:53,918 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-13 11:46:53,918 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 11:46:53,929 INFO L255 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-10-13 11:46:53,931 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:46:54,193 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 11:46:54,193 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 11:46:55,131 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 11:46:55,131 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:46:55,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1236239735] [2024-10-13 11:46:55,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1236239735] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 11:46:55,132 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 11:46:55,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2024-10-13 11:46:55,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790593694] [2024-10-13 11:46:55,132 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 11:46:55,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-10-13 11:46:55,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:46:55,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-10-13 11:46:55,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2024-10-13 11:46:55,134 INFO L87 Difference]: Start difference. First operand 1109 states and 1194 transitions. Second operand has 50 states, 48 states have (on average 2.1458333333333335) internal successors, (103), 50 states have internal predecessors, (103), 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 11:47:03,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:47:03,198 INFO L93 Difference]: Finished difference Result 1146 states and 1264 transitions. [2024-10-13 11:47:03,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-10-13 11:47:03,199 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 48 states have (on average 2.1458333333333335) internal successors, (103), 50 states have internal predecessors, (103), 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 81 [2024-10-13 11:47:03,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:47:03,202 INFO L225 Difference]: With dead ends: 1146 [2024-10-13 11:47:03,204 INFO L226 Difference]: Without dead ends: 1144 [2024-10-13 11:47:03,205 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=2713, Invalid=5843, Unknown=0, NotChecked=0, Total=8556 [2024-10-13 11:47:03,206 INFO L432 NwaCegarLoop]: 964 mSDtfsCounter, 26 mSDsluCounter, 22126 mSDsCounter, 0 mSdLazyCounter, 5022 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 23090 SdHoareTripleChecker+Invalid, 5125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 5022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-10-13 11:47:03,206 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 23090 Invalid, 5125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 5022 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2024-10-13 11:47:03,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1144 states. [2024-10-13 11:47:03,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1144 to 1143. [2024-10-13 11:47:03,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1143 states, 663 states have (on average 1.8310708898944192) internal successors, (1214), 1132 states have internal predecessors, (1214), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2024-10-13 11:47:03,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1143 states to 1143 states and 1240 transitions. [2024-10-13 11:47:03,215 INFO L78 Accepts]: Start accepts. Automaton has 1143 states and 1240 transitions. Word has length 81 [2024-10-13 11:47:03,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:47:03,215 INFO L471 AbstractCegarLoop]: Abstraction has 1143 states and 1240 transitions. [2024-10-13 11:47:03,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 48 states have (on average 2.1458333333333335) internal successors, (103), 50 states have internal predecessors, (103), 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 11:47:03,215 INFO L276 IsEmpty]: Start isEmpty. Operand 1143 states and 1240 transitions. [2024-10-13 11:47:03,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-10-13 11:47:03,216 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:47:03,216 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] [2024-10-13 11:47:03,225 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2024-10-13 11:47:03,416 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 11:47:03,417 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-10-13 11:47:03,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:47:03,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1776939286, now seen corresponding path program 5 times [2024-10-13 11:47:03,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:47:03,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1747121399] [2024-10-13 11:47:03,418 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-13 11:47:03,418 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 11:47:03,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:47:03,419 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 11:47:03,420 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 11:47:04,387 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2024-10-13 11:47:04,387 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 11:47:04,406 INFO L255 TraceCheckSpWp]: Trace formula consists of 770 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-10-13 11:47:04,415 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:47:04,421 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 11:47:04,491 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-10-13 11:47:04,492 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 11:47:04,516 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 11:47:04,596 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 11:47:05,350 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-10-13 11:47:05,350 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 11:47:05,380 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 11:47:05,403 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 11:47:05,403 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 11:47:05,685 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:47:05,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1747121399] [2024-10-13 11:47:05,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1747121399] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 11:47:05,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1257385788] [2024-10-13 11:47:05,685 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-13 11:47:05,686 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-10-13 11:47:05,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-10-13 11:47:05,688 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-10-13 11:47:05,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process