./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test22_5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test22_5.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.graphml --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 fd4ad7692f5709ff8aaeaf10c342a0f425eb83bd ................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test22_5.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.graphml --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 fd4ad7692f5709ff8aaeaf10c342a0f425eb83bd ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 06:21:51,066 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:21:51,069 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:21:51,114 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:21:51,114 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:21:51,117 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:21:51,119 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:21:51,124 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:21:51,127 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:21:51,132 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:21:51,133 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:21:51,138 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:21:51,139 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:21:51,142 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:21:51,143 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:21:51,147 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:21:51,148 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:21:51,149 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:21:51,151 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:21:51,157 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:21:51,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:21:51,159 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:21:51,162 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:21:51,162 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:21:51,168 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:21:51,169 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:21:51,169 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:21:51,171 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:21:51,172 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:21:51,172 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:21:51,173 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:21:51,173 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:21:51,175 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:21:51,176 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:21:51,177 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:21:51,177 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:21:51,178 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:21:51,178 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:21:51,178 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:21:51,179 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:21:51,180 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:21:51,181 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-08-27 06:21:51,218 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:21:51,219 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:21:51,220 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:21:51,220 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:21:51,222 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:21:51,222 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:21:51,222 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:21:51,222 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:21:51,223 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:21:51,223 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:21:51,224 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:21:51,224 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:21:51,224 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:21:51,224 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:21:51,224 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:21:51,225 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:21:51,225 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:21:51,225 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:21:51,225 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:21:51,225 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:21:51,226 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:21:51,226 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:21:51,226 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:21:51,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:21:51,226 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:21:51,226 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:21:51,227 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 06:21:51,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-27 06:21:51,227 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:21:51,227 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd4ad7692f5709ff8aaeaf10c342a0f425eb83bd [2021-08-27 06:21:51,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:21:51,545 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:21:51,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:21:51,549 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:21:51,549 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:21:51,550 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test22_5.i [2021-08-27 06:21:51,623 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16c4696b8/90e8d602f877477791b57f47eb98fc7a/FLAGc0ab77ad5 [2021-08-27 06:21:52,200 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:21:52,201 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test22_5.i [2021-08-27 06:21:52,219 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16c4696b8/90e8d602f877477791b57f47eb98fc7a/FLAGc0ab77ad5 [2021-08-27 06:21:52,584 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16c4696b8/90e8d602f877477791b57f47eb98fc7a [2021-08-27 06:21:52,586 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:21:52,602 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:21:52,603 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:21:52,603 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:21:52,606 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:21:52,607 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:21:52" (1/1) ... [2021-08-27 06:21:52,608 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b325268 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:21:52, skipping insertion in model container [2021-08-27 06:21:52,608 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:21:52" (1/1) ... [2021-08-27 06:21:52,615 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:21:52,671 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:21:53,076 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:21:53,095 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-08-27 06:21:53,096 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@224f30ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:21:53, skipping insertion in model container [2021-08-27 06:21:53,096 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:21:53,097 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-08-27 06:21:53,100 INFO L168 Benchmark]: Toolchain (without parser) took 496.74 ms. Allocated memory is still 60.8 MB. Free memory was 38.3 MB in the beginning and 40.5 MB in the end (delta: -2.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-27 06:21:53,101 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 60.8 MB. Free memory is still 43.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:21:53,102 INFO L168 Benchmark]: CACSL2BoogieTranslator took 494.09 ms. Allocated memory is still 60.8 MB. Free memory was 38.0 MB in the beginning and 40.5 MB in the end (delta: -2.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-27 06:21:53,104 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 60.8 MB. Free memory is still 43.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 494.09 ms. Allocated memory is still 60.8 MB. Free memory was 38.0 MB in the beginning and 40.5 MB in the end (delta: -2.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type 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... ### Bit-precise run ### This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 06:21:54,835 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:21:54,839 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:21:55,175 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:21:55,176 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:21:55,181 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:21:55,182 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:21:55,188 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:21:55,191 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:21:55,197 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:21:55,198 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:21:55,203 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:21:55,203 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:21:55,206 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:21:55,208 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:21:55,212 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:21:55,213 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:21:55,217 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:21:55,219 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:21:55,223 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:21:55,226 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:21:55,227 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:21:55,230 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:21:55,230 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:21:55,234 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:21:55,235 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:21:55,235 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:21:55,237 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:21:55,237 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:21:55,238 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:21:55,238 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:21:55,239 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:21:55,240 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:21:55,241 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:21:55,242 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:21:55,242 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:21:55,243 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:21:55,243 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:21:55,244 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:21:55,246 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:21:55,246 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:21:55,250 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-08-27 06:21:55,280 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:21:55,281 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:21:55,282 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:21:55,282 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:21:55,284 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:21:55,285 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:21:55,285 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:21:55,285 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:21:55,285 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:21:55,285 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:21:55,286 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:21:55,287 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:21:55,287 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:21:55,287 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:21:55,287 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:21:55,287 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:21:55,288 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:21:55,288 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:21:55,288 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-27 06:21:55,288 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-27 06:21:55,288 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:21:55,288 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:21:55,289 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:21:55,289 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:21:55,289 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:21:55,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:21:55,289 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:21:55,290 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:21:55,290 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-27 06:21:55,290 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-27 06:21:55,290 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:21:55,290 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-27 06:21:55,291 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd4ad7692f5709ff8aaeaf10c342a0f425eb83bd [2021-08-27 06:21:55,638 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:21:55,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:21:55,671 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:21:55,672 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:21:55,673 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:21:55,674 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test22_5.i [2021-08-27 06:21:55,732 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e1dd0961/26091b1d9ccf4d6fae9941fc7881c88e/FLAGb4d214034 [2021-08-27 06:21:56,322 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:21:56,323 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test22_5.i [2021-08-27 06:21:56,340 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e1dd0961/26091b1d9ccf4d6fae9941fc7881c88e/FLAGb4d214034 [2021-08-27 06:21:56,616 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e1dd0961/26091b1d9ccf4d6fae9941fc7881c88e [2021-08-27 06:21:56,621 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:21:56,623 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:21:56,625 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:21:56,625 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:21:56,628 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:21:56,629 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:21:56" (1/1) ... [2021-08-27 06:21:56,630 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ed8783e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:21:56, skipping insertion in model container [2021-08-27 06:21:56,631 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:21:56" (1/1) ... [2021-08-27 06:21:56,637 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:21:56,685 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:21:57,003 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:21:57,018 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-08-27 06:21:57,030 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:21:57,114 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:21:57,126 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 06:21:57,166 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:21:57,222 INFO L208 MainTranslator]: Completed translation [2021-08-27 06:21:57,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:21:57 WrapperNode [2021-08-27 06:21:57,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:21:57,224 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 06:21:57,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 06:21:57,224 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 06:21:57,231 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:21:57" (1/1) ... [2021-08-27 06:21:57,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:21:57" (1/1) ... [2021-08-27 06:21:57,251 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:21:57" (1/1) ... [2021-08-27 06:21:57,252 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:21:57" (1/1) ... [2021-08-27 06:21:57,290 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:21:57" (1/1) ... [2021-08-27 06:21:57,303 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:21:57" (1/1) ... [2021-08-27 06:21:57,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:21:57" (1/1) ... [2021-08-27 06:21:57,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 06:21:57,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 06:21:57,331 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 06:21:57,331 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 06:21:57,332 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:21:57" (1/1) ... [2021-08-27 06:21:57,340 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:21:57,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 06:21:57,359 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-27 06:21:57,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-27 06:21:57,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-27 06:21:57,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 06:21:57,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:21:57,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:21:57,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-08-27 06:21:57,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-08-27 06:21:57,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-08-27 06:21:57,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-08-27 06:21:57,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-08-27 06:21:57,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-08-27 06:21:57,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-08-27 06:21:57,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-08-27 06:21:57,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-08-27 06:21:57,394 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:21:57,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-08-27 06:21:57,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-08-27 06:21:57,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-08-27 06:21:57,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-08-27 06:21:57,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-08-27 06:21:57,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-08-27 06:21:57,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-08-27 06:21:57,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-08-27 06:21:57,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-08-27 06:21:57,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-08-27 06:21:57,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-08-27 06:21:57,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-08-27 06:21:57,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-08-27 06:21:57,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-08-27 06:21:57,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-08-27 06:21:57,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-08-27 06:21:57,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-08-27 06:21:57,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-08-27 06:21:57,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-08-27 06:21:57,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-08-27 06:21:57,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-08-27 06:21:57,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-08-27 06:21:57,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-08-27 06:21:57,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-08-27 06:21:57,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-08-27 06:21:57,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-08-27 06:21:57,399 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-08-27 06:21:57,399 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-08-27 06:21:57,399 INFO L138 BoogieDeclarations]: Found implementation of procedure f_22_get [2021-08-27 06:21:57,399 INFO L138 BoogieDeclarations]: Found implementation of procedure f_22_put [2021-08-27 06:21:57,399 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-08-27 06:21:57,399 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-27 06:21:57,400 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-08-27 06:21:57,400 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-08-27 06:21:57,400 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-08-27 06:21:57,400 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-08-27 06:21:57,400 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-08-27 06:21:57,400 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-08-27 06:21:57,401 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-08-27 06:21:57,401 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-08-27 06:21:57,401 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-08-27 06:21:57,401 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-08-27 06:21:57,401 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-08-27 06:21:57,401 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-08-27 06:21:57,402 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-08-27 06:21:57,402 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-08-27 06:21:57,402 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-08-27 06:21:57,402 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-08-27 06:21:57,402 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-08-27 06:21:57,402 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-08-27 06:21:57,403 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-08-27 06:21:57,403 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-08-27 06:21:57,403 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-08-27 06:21:57,403 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-08-27 06:21:57,403 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-08-27 06:21:57,403 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-08-27 06:21:57,403 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-08-27 06:21:57,404 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-08-27 06:21:57,404 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-08-27 06:21:57,404 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-08-27 06:21:57,404 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-08-27 06:21:57,404 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-08-27 06:21:57,404 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-08-27 06:21:57,405 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-08-27 06:21:57,405 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-08-27 06:21:57,405 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-08-27 06:21:57,405 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-08-27 06:21:57,405 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-08-27 06:21:57,405 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-08-27 06:21:57,405 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-08-27 06:21:57,406 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-08-27 06:21:57,406 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-08-27 06:21:57,406 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-08-27 06:21:57,406 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-08-27 06:21:57,406 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-08-27 06:21:57,406 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-08-27 06:21:57,407 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-08-27 06:21:57,407 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-08-27 06:21:57,407 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-08-27 06:21:57,407 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-08-27 06:21:57,407 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-08-27 06:21:57,407 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-08-27 06:21:57,407 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-08-27 06:21:57,408 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-08-27 06:21:57,408 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-08-27 06:21:57,408 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-08-27 06:21:57,408 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-08-27 06:21:57,408 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-08-27 06:21:57,408 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-08-27 06:21:57,409 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-08-27 06:21:57,409 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-08-27 06:21:57,409 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-08-27 06:21:57,409 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-08-27 06:21:57,409 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-08-27 06:21:57,409 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-08-27 06:21:57,409 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-08-27 06:21:57,410 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-08-27 06:21:57,410 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-08-27 06:21:57,410 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-27 06:21:57,410 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-08-27 06:21:57,410 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-08-27 06:21:57,410 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-08-27 06:21:57,410 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-08-27 06:21:57,411 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-08-27 06:21:57,411 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-08-27 06:21:57,411 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-08-27 06:21:57,411 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-08-27 06:21:57,411 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-08-27 06:21:57,411 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-08-27 06:21:57,412 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-08-27 06:21:57,412 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-08-27 06:21:57,412 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-08-27 06:21:57,412 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-08-27 06:21:57,412 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-08-27 06:21:57,412 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-08-27 06:21:57,413 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-08-27 06:21:57,413 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-08-27 06:21:57,413 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-08-27 06:21:57,413 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-08-27 06:21:57,413 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-08-27 06:21:57,413 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-08-27 06:21:57,414 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-08-27 06:21:57,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-08-27 06:21:57,414 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-08-27 06:21:57,414 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-08-27 06:21:57,414 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-08-27 06:21:57,414 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-08-27 06:21:57,414 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-08-27 06:21:57,415 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-08-27 06:21:57,415 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-08-27 06:21:57,415 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-08-27 06:21:57,415 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-08-27 06:21:57,415 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-08-27 06:21:57,415 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-08-27 06:21:57,415 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-08-27 06:21:57,416 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-08-27 06:21:57,416 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-08-27 06:21:57,416 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-08-27 06:21:57,416 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-08-27 06:21:57,416 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-08-27 06:21:57,416 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-08-27 06:21:57,416 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-08-27 06:21:57,417 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-08-27 06:21:57,417 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-27 06:21:57,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-08-27 06:21:57,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-08-27 06:21:57,417 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-08-27 06:21:57,417 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-08-27 06:21:57,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-08-27 06:21:57,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-27 06:21:57,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-08-27 06:21:57,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-08-27 06:21:57,418 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:21:57,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-27 06:21:57,418 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-08-27 06:21:57,419 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-08-27 06:21:57,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-08-27 06:21:57,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-27 06:21:57,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-08-27 06:21:57,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-08-27 06:21:57,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-08-27 06:21:57,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-08-27 06:21:57,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-08-27 06:21:57,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-08-27 06:21:57,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 06:21:57,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-08-27 06:21:57,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-08-27 06:21:57,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-08-27 06:21:57,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-08-27 06:21:57,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-08-27 06:21:57,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-27 06:21:57,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-27 06:21:57,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-08-27 06:21:57,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-08-27 06:21:57,421 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:21:57,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-08-27 06:21:57,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-08-27 06:21:57,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-08-27 06:21:57,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-08-27 06:21:57,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-08-27 06:21:57,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-08-27 06:21:57,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-08-27 06:21:57,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-08-27 06:21:57,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-08-27 06:21:57,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-08-27 06:21:57,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-08-27 06:21:57,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-08-27 06:21:57,423 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-08-27 06:21:57,424 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-08-27 06:21:57,424 INFO L130 BoogieDeclarations]: Found specification of procedure f_22_get [2021-08-27 06:21:57,424 INFO L130 BoogieDeclarations]: Found specification of procedure f_22_put [2021-08-27 06:21:57,424 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-08-27 06:21:57,424 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-27 06:21:57,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-27 06:21:57,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 06:21:57,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-08-27 06:21:57,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 06:21:57,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:21:57,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-08-27 06:21:57,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-08-27 06:21:57,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-08-27 06:21:57,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-08-27 06:21:58,121 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:21:58,384 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:21:58,608 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 06:21:58,608 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-08-27 06:21:58,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:21:58 BoogieIcfgContainer [2021-08-27 06:21:58,611 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 06:21:58,612 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-27 06:21:58,612 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-27 06:21:58,615 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-27 06:21:58,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 06:21:56" (1/3) ... [2021-08-27 06:21:58,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56e40954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:21:58, skipping insertion in model container [2021-08-27 06:21:58,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:21:57" (2/3) ... [2021-08-27 06:21:58,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56e40954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:21:58, skipping insertion in model container [2021-08-27 06:21:58,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:21:58" (3/3) ... [2021-08-27 06:21:58,617 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test22_5.i [2021-08-27 06:21:58,622 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-27 06:21:58,623 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 71 error locations. [2021-08-27 06:21:58,665 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-27 06:21:58,672 INFO L339 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, mHoare=false, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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, mLoopAccelerationTechnique=FAST_UPR [2021-08-27 06:21:58,672 INFO L340 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2021-08-27 06:21:58,693 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 85 states have (on average 1.4588235294117646) internal successors, (124), 115 states have internal predecessors, (124), 21 states have call successors, (21), 19 states have call predecessors, (21), 19 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2021-08-27 06:21:58,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-27 06:21:58,706 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:21:58,707 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:21:58,707 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_kobject_createErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:21:58,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:21:58,712 INFO L82 PathProgramCache]: Analyzing trace with hash -604206848, now seen corresponding path program 1 times [2021-08-27 06:21:58,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:21:58,723 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [501564352] [2021-08-27 06:21:58,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:21:58,724 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:21:58,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:21:58,730 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:21:58,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-27 06:21:58,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:21:58,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:21:58,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:21:59,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-08-27 06:21:59,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:21:59,105 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:21:59,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:21:59,221 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:21:59,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [501564352] [2021-08-27 06:21:59,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [501564352] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:21:59,222 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:21:59,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-08-27 06:21:59,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234505862] [2021-08-27 06:21:59,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:21:59,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:21:59,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:21:59,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:21:59,241 INFO L87 Difference]: Start difference. First operand has 155 states, 85 states have (on average 1.4588235294117646) internal successors, (124), 115 states have internal predecessors, (124), 21 states have call successors, (21), 19 states have call predecessors, (21), 19 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-27 06:21:59,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:21:59,430 INFO L93 Difference]: Finished difference Result 137 states and 148 transitions. [2021-08-27 06:21:59,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:21:59,432 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2021-08-27 06:21:59,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:21:59,440 INFO L225 Difference]: With dead ends: 137 [2021-08-27 06:21:59,440 INFO L226 Difference]: Without dead ends: 134 [2021-08-27 06:21:59,442 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.4ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:21:59,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-08-27 06:21:59,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 128. [2021-08-27 06:21:59,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 71 states have (on average 1.3943661971830985) internal successors, (99), 92 states have internal predecessors, (99), 20 states have call successors, (20), 18 states have call predecessors, (20), 18 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) [2021-08-27 06:21:59,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 139 transitions. [2021-08-27 06:21:59,478 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 139 transitions. Word has length 17 [2021-08-27 06:21:59,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:21:59,479 INFO L470 AbstractCegarLoop]: Abstraction has 128 states and 139 transitions. [2021-08-27 06:21:59,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-27 06:21:59,479 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 139 transitions. [2021-08-27 06:21:59,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-27 06:21:59,480 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:21:59,480 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:21:59,495 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-27 06:21:59,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:21:59,695 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_kobject_createErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:21:59,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:21:59,696 INFO L82 PathProgramCache]: Analyzing trace with hash -604206847, now seen corresponding path program 1 times [2021-08-27 06:21:59,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:21:59,696 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [743654840] [2021-08-27 06:21:59,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:21:59,697 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:21:59,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:21:59,698 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:21:59,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-27 06:21:59,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:21:59,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 06:21:59,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:22:00,091 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-08-27 06:22:00,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:22:00,191 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:22:00,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:22:00,558 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:22:00,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [743654840] [2021-08-27 06:22:00,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [743654840] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:22:00,562 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:22:00,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-08-27 06:22:00,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076499029] [2021-08-27 06:22:00,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 06:22:00,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:22:00,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 06:22:00,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-08-27 06:22:00,567 INFO L87 Difference]: Start difference. First operand 128 states and 139 transitions. Second operand has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:22:00,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:22:00,983 INFO L93 Difference]: Finished difference Result 133 states and 144 transitions. [2021-08-27 06:22:00,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 06:22:00,986 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 17 [2021-08-27 06:22:00,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:22:00,987 INFO L225 Difference]: With dead ends: 133 [2021-08-27 06:22:00,987 INFO L226 Difference]: Without dead ends: 133 [2021-08-27 06:22:00,988 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 197.5ms TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-08-27 06:22:00,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-08-27 06:22:00,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 128. [2021-08-27 06:22:00,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 70 states have (on average 1.4) internal successors, (98), 92 states have internal predecessors, (98), 20 states have call successors, (20), 18 states have call predecessors, (20), 18 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) [2021-08-27 06:22:01,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 138 transitions. [2021-08-27 06:22:01,005 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 138 transitions. Word has length 17 [2021-08-27 06:22:01,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:22:01,005 INFO L470 AbstractCegarLoop]: Abstraction has 128 states and 138 transitions. [2021-08-27 06:22:01,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:22:01,006 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 138 transitions. [2021-08-27 06:22:01,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-27 06:22:01,006 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:22:01,006 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:22:01,018 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-08-27 06:22:01,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:22:01,215 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_kobject_createErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:22:01,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:22:01,216 INFO L82 PathProgramCache]: Analyzing trace with hash -575577697, now seen corresponding path program 1 times [2021-08-27 06:22:01,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:22:01,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [851345314] [2021-08-27 06:22:01,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:22:01,217 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:22:01,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:22:01,219 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:22:01,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-27 06:22:01,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:22:01,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 06:22:01,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:22:01,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:22:01,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:22:01,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:22:01,644 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:22:01,644 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [851345314] [2021-08-27 06:22:01,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [851345314] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:22:01,644 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:22:01,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-27 06:22:01,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617731610] [2021-08-27 06:22:01,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:22:01,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:22:01,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:22:01,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:22:01,646 INFO L87 Difference]: Start difference. First operand 128 states and 138 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-27 06:22:01,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:22:01,665 INFO L93 Difference]: Finished difference Result 127 states and 135 transitions. [2021-08-27 06:22:01,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:22:01,666 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2021-08-27 06:22:01,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:22:01,667 INFO L225 Difference]: With dead ends: 127 [2021-08-27 06:22:01,667 INFO L226 Difference]: Without dead ends: 127 [2021-08-27 06:22:01,667 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.1ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:22:01,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-08-27 06:22:01,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2021-08-27 06:22:01,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 69 states have (on average 1.3768115942028984) internal successors, (95), 89 states have internal predecessors, (95), 19 states have call successors, (19), 18 states have call predecessors, (19), 18 states have return successors, (19), 19 states have call predecessors, (19), 18 states have call successors, (19) [2021-08-27 06:22:01,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 133 transitions. [2021-08-27 06:22:01,675 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 133 transitions. Word has length 17 [2021-08-27 06:22:01,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:22:01,675 INFO L470 AbstractCegarLoop]: Abstraction has 125 states and 133 transitions. [2021-08-27 06:22:01,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-27 06:22:01,675 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 133 transitions. [2021-08-27 06:22:01,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-08-27 06:22:01,676 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:22:01,676 INFO L512 BasicCegarLoop]: 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] [2021-08-27 06:22:01,688 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-08-27 06:22:01,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:22:01,886 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_atomic_sub_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:22:01,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:22:01,886 INFO L82 PathProgramCache]: Analyzing trace with hash -811306797, now seen corresponding path program 1 times [2021-08-27 06:22:01,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:22:01,887 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1102285499] [2021-08-27 06:22:01,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:22:01,887 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:22:01,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:22:01,888 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:22:01,890 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-08-27 06:22:02,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:22:02,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:22:02,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:22:02,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:22:02,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:22:02,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:22:02,385 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:22:02,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1102285499] [2021-08-27 06:22:02,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1102285499] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:22:02,385 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:22:02,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-27 06:22:02,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438052443] [2021-08-27 06:22:02,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:22:02,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:22:02,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:22:02,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:22:02,387 INFO L87 Difference]: Start difference. First operand 125 states and 133 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:22:02,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:22:02,409 INFO L93 Difference]: Finished difference Result 127 states and 134 transitions. [2021-08-27 06:22:02,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:22:02,410 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2021-08-27 06:22:02,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:22:02,411 INFO L225 Difference]: With dead ends: 127 [2021-08-27 06:22:02,411 INFO L226 Difference]: Without dead ends: 127 [2021-08-27 06:22:02,412 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.2ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:22:02,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-08-27 06:22:02,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2021-08-27 06:22:02,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 69 states have (on average 1.3623188405797102) internal successors, (94), 89 states have internal predecessors, (94), 19 states have call successors, (19), 18 states have call predecessors, (19), 18 states have return successors, (19), 19 states have call predecessors, (19), 18 states have call successors, (19) [2021-08-27 06:22:02,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 132 transitions. [2021-08-27 06:22:02,419 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 132 transitions. Word has length 31 [2021-08-27 06:22:02,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:22:02,419 INFO L470 AbstractCegarLoop]: Abstraction has 125 states and 132 transitions. [2021-08-27 06:22:02,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:22:02,420 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 132 transitions. [2021-08-27 06:22:02,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-08-27 06:22:02,420 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:22:02,421 INFO L512 BasicCegarLoop]: 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] [2021-08-27 06:22:02,440 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-08-27 06:22:02,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:22:02,633 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_atomic_sub_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:22:02,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:22:02,634 INFO L82 PathProgramCache]: Analyzing trace with hash -1220131022, now seen corresponding path program 1 times [2021-08-27 06:22:02,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:22:02,634 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2003979429] [2021-08-27 06:22:02,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:22:02,634 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:22:02,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:22:02,635 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:22:02,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-08-27 06:22:02,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:22:02,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 15 conjunts are in the unsatisfiable core [2021-08-27 06:22:02,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:22:03,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:22:03,093 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:22:03,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:22:03,241 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:22:03,241 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2003979429] [2021-08-27 06:22:03,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2003979429] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:22:03,241 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:22:03,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2021-08-27 06:22:03,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230996380] [2021-08-27 06:22:03,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-27 06:22:03,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:22:03,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-27 06:22:03,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-08-27 06:22:03,244 INFO L87 Difference]: Start difference. First operand 125 states and 132 transitions. Second operand has 9 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 4 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:22:03,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:22:03,336 INFO L93 Difference]: Finished difference Result 142 states and 151 transitions. [2021-08-27 06:22:03,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-27 06:22:03,337 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 4 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2021-08-27 06:22:03,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:22:03,341 INFO L225 Difference]: With dead ends: 142 [2021-08-27 06:22:03,341 INFO L226 Difference]: Without dead ends: 142 [2021-08-27 06:22:03,342 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 84.7ms TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-08-27 06:22:03,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-08-27 06:22:03,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 138. [2021-08-27 06:22:03,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 76 states have (on average 1.3289473684210527) internal successors, (101), 97 states have internal predecessors, (101), 22 states have call successors, (22), 20 states have call predecessors, (22), 21 states have return successors, (23), 22 states have call predecessors, (23), 21 states have call successors, (23) [2021-08-27 06:22:03,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 146 transitions. [2021-08-27 06:22:03,366 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 146 transitions. Word has length 31 [2021-08-27 06:22:03,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:22:03,366 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 146 transitions. [2021-08-27 06:22:03,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 4 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:22:03,366 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 146 transitions. [2021-08-27 06:22:03,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-08-27 06:22:03,369 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:22:03,369 INFO L512 BasicCegarLoop]: 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] [2021-08-27 06:22:03,381 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-08-27 06:22:03,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:22:03,581 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_kref_initErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:22:03,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:22:03,581 INFO L82 PathProgramCache]: Analyzing trace with hash 536113147, now seen corresponding path program 1 times [2021-08-27 06:22:03,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:22:03,582 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1876976931] [2021-08-27 06:22:03,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:22:03,582 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:22:03,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:22:03,583 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:22:03,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-08-27 06:22:03,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:22:03,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-27 06:22:03,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:22:03,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:22:03,914 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:22:04,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:22:04,061 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:22:04,061 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1876976931] [2021-08-27 06:22:04,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1876976931] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:22:04,061 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:22:04,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-08-27 06:22:04,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019702413] [2021-08-27 06:22:04,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-27 06:22:04,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:22:04,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 06:22:04,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-08-27 06:22:04,068 INFO L87 Difference]: Start difference. First operand 138 states and 146 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-27 06:22:04,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:22:04,109 INFO L93 Difference]: Finished difference Result 144 states and 152 transitions. [2021-08-27 06:22:04,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 06:22:04,111 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 32 [2021-08-27 06:22:04,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:22:04,112 INFO L225 Difference]: With dead ends: 144 [2021-08-27 06:22:04,112 INFO L226 Difference]: Without dead ends: 140 [2021-08-27 06:22:04,113 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.2ms TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-08-27 06:22:04,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-08-27 06:22:04,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2021-08-27 06:22:04,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 78 states have (on average 1.3205128205128205) internal successors, (103), 99 states have internal predecessors, (103), 22 states have call successors, (22), 20 states have call predecessors, (22), 21 states have return successors, (23), 22 states have call predecessors, (23), 21 states have call successors, (23) [2021-08-27 06:22:04,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 148 transitions. [2021-08-27 06:22:04,119 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 148 transitions. Word has length 32 [2021-08-27 06:22:04,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:22:04,119 INFO L470 AbstractCegarLoop]: Abstraction has 140 states and 148 transitions. [2021-08-27 06:22:04,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-27 06:22:04,119 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 148 transitions. [2021-08-27 06:22:04,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-08-27 06:22:04,120 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:22:04,120 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:22:04,136 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-08-27 06:22:04,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:22:04,333 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_kref_initErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:22:04,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:22:04,334 INFO L82 PathProgramCache]: Analyzing trace with hash 690495131, now seen corresponding path program 1 times [2021-08-27 06:22:04,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:22:04,335 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [486533749] [2021-08-27 06:22:04,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:22:04,335 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:22:04,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:22:04,338 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:22:04,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-08-27 06:22:04,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:22:04,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 06:22:04,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:22:04,737 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:22:04,738 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:22:04,959 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:22:04,959 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:22:04,960 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [486533749] [2021-08-27 06:22:04,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [486533749] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-27 06:22:04,965 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 06:22:04,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-08-27 06:22:04,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029627052] [2021-08-27 06:22:04,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 06:22:04,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:22:04,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 06:22:04,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-08-27 06:22:04,967 INFO L87 Difference]: Start difference. First operand 140 states and 148 transitions. Second operand has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-27 06:22:05,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:22:05,128 INFO L93 Difference]: Finished difference Result 148 states and 158 transitions. [2021-08-27 06:22:05,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-27 06:22:05,138 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 34 [2021-08-27 06:22:05,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:22:05,139 INFO L225 Difference]: With dead ends: 148 [2021-08-27 06:22:05,139 INFO L226 Difference]: Without dead ends: 144 [2021-08-27 06:22:05,139 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 165.3ms TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2021-08-27 06:22:05,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-08-27 06:22:05,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2021-08-27 06:22:05,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 82 states have (on average 1.3048780487804879) internal successors, (107), 103 states have internal predecessors, (107), 22 states have call successors, (22), 20 states have call predecessors, (22), 21 states have return successors, (23), 22 states have call predecessors, (23), 21 states have call successors, (23) [2021-08-27 06:22:05,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 152 transitions. [2021-08-27 06:22:05,145 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 152 transitions. Word has length 34 [2021-08-27 06:22:05,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:22:05,146 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 152 transitions. [2021-08-27 06:22:05,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-27 06:22:05,146 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 152 transitions. [2021-08-27 06:22:05,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-08-27 06:22:05,149 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:22:05,149 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:22:05,161 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-08-27 06:22:05,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:22:05,364 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:22:05,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:22:05,364 INFO L82 PathProgramCache]: Analyzing trace with hash 780110635, now seen corresponding path program 1 times [2021-08-27 06:22:05,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:22:05,364 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1536445851] [2021-08-27 06:22:05,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:22:05,364 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:22:05,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:22:05,365 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:22:05,366 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-08-27 06:22:05,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:22:05,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 14 conjunts are in the unsatisfiable core [2021-08-27 06:22:05,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:22:05,822 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-08-27 06:22:05,822 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:22:06,133 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-08-27 06:22:06,134 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:22:06,134 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1536445851] [2021-08-27 06:22:06,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1536445851] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:22:06,134 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:22:06,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-27 06:22:06,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057515325] [2021-08-27 06:22:06,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 06:22:06,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:22:06,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 06:22:06,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 06:22:06,136 INFO L87 Difference]: Start difference. First operand 144 states and 152 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-08-27 06:22:06,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:22:06,268 INFO L93 Difference]: Finished difference Result 157 states and 165 transitions. [2021-08-27 06:22:06,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 06:22:06,269 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 36 [2021-08-27 06:22:06,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:22:06,270 INFO L225 Difference]: With dead ends: 157 [2021-08-27 06:22:06,270 INFO L226 Difference]: Without dead ends: 137 [2021-08-27 06:22:06,270 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 06:22:06,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-08-27 06:22:06,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 127. [2021-08-27 06:22:06,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 72 states have (on average 1.3333333333333333) internal successors, (96), 92 states have internal predecessors, (96), 19 states have call successors, (19), 18 states have call predecessors, (19), 17 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-08-27 06:22:06,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 133 transitions. [2021-08-27 06:22:06,274 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 133 transitions. Word has length 36 [2021-08-27 06:22:06,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:22:06,274 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 133 transitions. [2021-08-27 06:22:06,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-08-27 06:22:06,274 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 133 transitions. [2021-08-27 06:22:06,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-08-27 06:22:06,275 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:22:06,275 INFO L512 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:22:06,286 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-08-27 06:22:06,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:22:06,485 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_kref_initErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:22:06,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:22:06,485 INFO L82 PathProgramCache]: Analyzing trace with hash -2002385957, now seen corresponding path program 2 times [2021-08-27 06:22:06,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:22:06,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1419119672] [2021-08-27 06:22:06,485 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 06:22:06,486 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:22:06,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:22:06,486 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:22:06,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-08-27 06:22:06,774 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-08-27 06:22:06,774 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 06:22:06,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-27 06:22:06,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:22:06,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-08-27 06:22:07,084 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-08-27 06:22:07,085 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:22:07,303 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-08-27 06:22:07,303 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:22:07,303 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1419119672] [2021-08-27 06:22:07,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1419119672] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:22:07,304 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:22:07,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2021-08-27 06:22:07,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690245324] [2021-08-27 06:22:07,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-27 06:22:07,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:22:07,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-27 06:22:07,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-08-27 06:22:07,307 INFO L87 Difference]: Start difference. First operand 127 states and 133 transitions. Second operand has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 06:22:07,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:22:07,990 INFO L93 Difference]: Finished difference Result 152 states and 166 transitions. [2021-08-27 06:22:07,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 06:22:07,991 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 38 [2021-08-27 06:22:07,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:22:07,992 INFO L225 Difference]: With dead ends: 152 [2021-08-27 06:22:07,992 INFO L226 Difference]: Without dead ends: 152 [2021-08-27 06:22:07,993 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 56 SyntacticMatches, 9 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 212.3ms TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-08-27 06:22:07,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-08-27 06:22:07,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 126. [2021-08-27 06:22:07,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 72 states have (on average 1.3194444444444444) internal successors, (95), 91 states have internal predecessors, (95), 19 states have call successors, (19), 18 states have call predecessors, (19), 17 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-08-27 06:22:07,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 132 transitions. [2021-08-27 06:22:07,997 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 132 transitions. Word has length 38 [2021-08-27 06:22:07,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:22:07,998 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 132 transitions. [2021-08-27 06:22:07,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 06:22:07,998 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 132 transitions. [2021-08-27 06:22:07,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-08-27 06:22:07,998 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:22:07,998 INFO L512 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:22:08,010 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-08-27 06:22:08,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:22:08,208 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_kref_initErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:22:08,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:22:08,208 INFO L82 PathProgramCache]: Analyzing trace with hash -2002385956, now seen corresponding path program 1 times [2021-08-27 06:22:08,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:22:08,209 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1744655101] [2021-08-27 06:22:08,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:22:08,209 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:22:08,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:22:08,210 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:22:08,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-08-27 06:22:08,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:22:08,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 06:22:08,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:22:08,712 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:22:08,712 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:22:09,095 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:22:09,095 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:22:09,095 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1744655101] [2021-08-27 06:22:09,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1744655101] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-27 06:22:09,096 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 06:22:09,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-08-27 06:22:09,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76954929] [2021-08-27 06:22:09,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-27 06:22:09,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:22:09,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-27 06:22:09,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2021-08-27 06:22:09,098 INFO L87 Difference]: Start difference. First operand 126 states and 132 transitions. Second operand has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-27 06:22:09,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:22:09,720 INFO L93 Difference]: Finished difference Result 138 states and 150 transitions. [2021-08-27 06:22:09,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-27 06:22:09,721 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 38 [2021-08-27 06:22:09,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:22:09,722 INFO L225 Difference]: With dead ends: 138 [2021-08-27 06:22:09,722 INFO L226 Difference]: Without dead ends: 134 [2021-08-27 06:22:09,722 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 645.0ms TimeCoverageRelationStatistics Valid=223, Invalid=377, Unknown=0, NotChecked=0, Total=600 [2021-08-27 06:22:09,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-08-27 06:22:09,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2021-08-27 06:22:09,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 80 states have (on average 1.2875) internal successors, (103), 99 states have internal predecessors, (103), 19 states have call successors, (19), 18 states have call predecessors, (19), 17 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-08-27 06:22:09,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 140 transitions. [2021-08-27 06:22:09,727 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 140 transitions. Word has length 38 [2021-08-27 06:22:09,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:22:09,728 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 140 transitions. [2021-08-27 06:22:09,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-27 06:22:09,728 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 140 transitions. [2021-08-27 06:22:09,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-08-27 06:22:09,729 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:22:09,729 INFO L512 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:22:09,737 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2021-08-27 06:22:09,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:22:09,937 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_kref_initErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:22:09,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:22:09,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1528032860, now seen corresponding path program 2 times [2021-08-27 06:22:09,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:22:09,938 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [24094027] [2021-08-27 06:22:09,938 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 06:22:09,938 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:22:09,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:22:09,939 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:22:09,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-08-27 06:22:10,270 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-08-27 06:22:10,270 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 06:22:10,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 22 conjunts are in the unsatisfiable core [2021-08-27 06:22:10,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:22:10,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-08-27 06:22:10,694 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-08-27 06:22:10,695 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:22:11,645 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-08-27 06:22:11,646 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:22:11,646 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [24094027] [2021-08-27 06:22:11,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [24094027] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:22:11,646 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:22:11,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2021-08-27 06:22:11,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035463809] [2021-08-27 06:22:11,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-08-27 06:22:11,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:22:11,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-08-27 06:22:11,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-08-27 06:22:11,648 INFO L87 Difference]: Start difference. First operand 134 states and 140 transitions. Second operand has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 15 states have internal predecessors, (38), 7 states have call successors, (13), 8 states have call predecessors, (13), 4 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-08-27 06:22:13,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:22:13,255 INFO L93 Difference]: Finished difference Result 133 states and 139 transitions. [2021-08-27 06:22:13,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-27 06:22:13,255 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 15 states have internal predecessors, (38), 7 states have call successors, (13), 8 states have call predecessors, (13), 4 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 46 [2021-08-27 06:22:13,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:22:13,256 INFO L225 Difference]: With dead ends: 133 [2021-08-27 06:22:13,256 INFO L226 Difference]: Without dead ends: 133 [2021-08-27 06:22:13,257 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 808.9ms TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2021-08-27 06:22:13,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-08-27 06:22:13,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2021-08-27 06:22:13,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 80 states have (on average 1.275) internal successors, (102), 98 states have internal predecessors, (102), 19 states have call successors, (19), 18 states have call predecessors, (19), 17 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-08-27 06:22:13,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 139 transitions. [2021-08-27 06:22:13,260 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 139 transitions. Word has length 46 [2021-08-27 06:22:13,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:22:13,260 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 139 transitions. [2021-08-27 06:22:13,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 15 states have internal predecessors, (38), 7 states have call successors, (13), 8 states have call predecessors, (13), 4 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-08-27 06:22:13,261 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 139 transitions. [2021-08-27 06:22:13,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-08-27 06:22:13,261 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:22:13,261 INFO L512 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:22:13,273 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-08-27 06:22:13,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:22:13,471 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:22:13,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:22:13,471 INFO L82 PathProgramCache]: Analyzing trace with hash 1472640772, now seen corresponding path program 1 times [2021-08-27 06:22:13,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:22:13,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1462630083] [2021-08-27 06:22:13,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:22:13,472 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:22:13,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:22:13,473 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:22:13,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-08-27 06:22:13,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:22:13,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 17 conjunts are in the unsatisfiable core [2021-08-27 06:22:13,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:22:14,187 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:22:14,187 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:22:15,154 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:22:15,154 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:22:15,154 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1462630083] [2021-08-27 06:22:15,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1462630083] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-27 06:22:15,154 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 06:22:15,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2021-08-27 06:22:15,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061162061] [2021-08-27 06:22:15,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-08-27 06:22:15,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:22:15,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-08-27 06:22:15,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=892, Unknown=0, NotChecked=0, Total=1122 [2021-08-27 06:22:15,156 INFO L87 Difference]: Start difference. First operand 133 states and 139 transitions. Second operand has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 34 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-27 06:22:15,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:22:15,586 INFO L93 Difference]: Finished difference Result 139 states and 145 transitions. [2021-08-27 06:22:15,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-27 06:22:15,587 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 34 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 51 [2021-08-27 06:22:15,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:22:15,588 INFO L225 Difference]: With dead ends: 139 [2021-08-27 06:22:15,588 INFO L226 Difference]: Without dead ends: 135 [2021-08-27 06:22:15,589 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 774.5ms TimeCoverageRelationStatistics Valid=250, Invalid=940, Unknown=0, NotChecked=0, Total=1190 [2021-08-27 06:22:15,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2021-08-27 06:22:15,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2021-08-27 06:22:15,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 82 states have (on average 1.2682926829268293) internal successors, (104), 100 states have internal predecessors, (104), 19 states have call successors, (19), 18 states have call predecessors, (19), 17 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-08-27 06:22:15,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 141 transitions. [2021-08-27 06:22:15,592 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 141 transitions. Word has length 51 [2021-08-27 06:22:15,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:22:15,593 INFO L470 AbstractCegarLoop]: Abstraction has 135 states and 141 transitions. [2021-08-27 06:22:15,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 34 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-27 06:22:15,593 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 141 transitions. [2021-08-27 06:22:15,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-27 06:22:15,593 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:22:15,594 INFO L512 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:22:15,605 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-08-27 06:22:15,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:22:15,805 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:22:15,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:22:15,805 INFO L82 PathProgramCache]: Analyzing trace with hash 680412260, now seen corresponding path program 2 times [2021-08-27 06:22:15,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:22:15,806 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1965891632] [2021-08-27 06:22:15,806 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 06:22:15,806 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:22:15,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:22:15,807 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:22:15,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-08-27 06:22:16,235 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-08-27 06:22:16,235 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 06:22:16,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-27 06:22:16,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:22:16,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-08-27 06:22:16,567 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:22:16,567 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:22:16,793 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:22:16,793 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:22:16,794 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1965891632] [2021-08-27 06:22:16,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1965891632] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:22:16,794 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:22:16,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2021-08-27 06:22:16,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308307194] [2021-08-27 06:22:16,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-27 06:22:16,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:22:16,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-27 06:22:16,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-08-27 06:22:16,796 INFO L87 Difference]: Start difference. First operand 135 states and 141 transitions. Second operand has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 8 states have internal predecessors, (32), 4 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2021-08-27 06:22:17,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:22:17,413 INFO L93 Difference]: Finished difference Result 159 states and 173 transitions. [2021-08-27 06:22:17,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 06:22:17,413 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 8 states have internal predecessors, (32), 4 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 53 [2021-08-27 06:22:17,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:22:17,414 INFO L225 Difference]: With dead ends: 159 [2021-08-27 06:22:17,414 INFO L226 Difference]: Without dead ends: 159 [2021-08-27 06:22:17,414 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 85 SyntacticMatches, 10 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 184.7ms TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-08-27 06:22:17,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2021-08-27 06:22:17,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 133. [2021-08-27 06:22:17,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 82 states have (on average 1.2439024390243902) internal successors, (102), 98 states have internal predecessors, (102), 19 states have call successors, (19), 18 states have call predecessors, (19), 17 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-08-27 06:22:17,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 139 transitions. [2021-08-27 06:22:17,419 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 139 transitions. Word has length 53 [2021-08-27 06:22:17,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:22:17,419 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 139 transitions. [2021-08-27 06:22:17,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 8 states have internal predecessors, (32), 4 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2021-08-27 06:22:17,419 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 139 transitions. [2021-08-27 06:22:17,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-27 06:22:17,420 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:22:17,420 INFO L512 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:22:17,430 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-08-27 06:22:17,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:22:17,630 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:22:17,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:22:17,630 INFO L82 PathProgramCache]: Analyzing trace with hash 680412261, now seen corresponding path program 1 times [2021-08-27 06:22:17,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:22:17,631 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1747570263] [2021-08-27 06:22:17,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:22:17,631 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:22:17,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:22:17,632 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:22:17,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-08-27 06:22:18,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:22:18,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 22 conjunts are in the unsatisfiable core [2021-08-27 06:22:18,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:22:18,164 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-08-27 06:22:18,583 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:22:18,583 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:22:19,479 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:22:19,479 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:22:19,479 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1747570263] [2021-08-27 06:22:19,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1747570263] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:22:19,480 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:22:19,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2021-08-27 06:22:19,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913176899] [2021-08-27 06:22:19,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-08-27 06:22:19,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:22:19,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-08-27 06:22:19,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-08-27 06:22:19,481 INFO L87 Difference]: Start difference. First operand 133 states and 139 transitions. Second operand has 23 states, 22 states have (on average 2.0) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (15), 8 states have call predecessors, (15), 4 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2021-08-27 06:22:21,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:22:21,104 INFO L93 Difference]: Finished difference Result 131 states and 137 transitions. [2021-08-27 06:22:21,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-27 06:22:21,105 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.0) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (15), 8 states have call predecessors, (15), 4 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) Word has length 53 [2021-08-27 06:22:21,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:22:21,106 INFO L225 Difference]: With dead ends: 131 [2021-08-27 06:22:21,106 INFO L226 Difference]: Without dead ends: 131 [2021-08-27 06:22:21,107 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 81 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 802.9ms TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2021-08-27 06:22:21,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-08-27 06:22:21,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2021-08-27 06:22:21,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 82 states have (on average 1.2195121951219512) internal successors, (100), 96 states have internal predecessors, (100), 19 states have call successors, (19), 18 states have call predecessors, (19), 17 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-08-27 06:22:21,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 137 transitions. [2021-08-27 06:22:21,111 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 137 transitions. Word has length 53 [2021-08-27 06:22:21,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:22:21,111 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 137 transitions. [2021-08-27 06:22:21,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.0) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (15), 8 states have call predecessors, (15), 4 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2021-08-27 06:22:21,111 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 137 transitions. [2021-08-27 06:22:21,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-08-27 06:22:21,112 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:22:21,112 INFO L512 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:22:21,122 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-08-27 06:22:21,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:22:21,317 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_atomic_sub_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:22:21,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:22:21,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1848313328, now seen corresponding path program 1 times [2021-08-27 06:22:21,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:22:21,318 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [203197138] [2021-08-27 06:22:21,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:22:21,318 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:22:21,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:22:21,319 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:22:21,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-08-27 06:22:21,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:22:21,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 06:22:21,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:22:22,017 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:22:22,017 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:22:22,259 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:22:22,259 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:22:22,259 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [203197138] [2021-08-27 06:22:22,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [203197138] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:22:22,260 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:22:22,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 8 [2021-08-27 06:22:22,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842288464] [2021-08-27 06:22:22,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 06:22:22,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:22:22,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 06:22:22,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-27 06:22:22,266 INFO L87 Difference]: Start difference. First operand 131 states and 137 transitions. Second operand has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 06:22:22,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:22:22,306 INFO L93 Difference]: Finished difference Result 133 states and 138 transitions. [2021-08-27 06:22:22,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-27 06:22:22,307 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 60 [2021-08-27 06:22:22,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:22:22,309 INFO L225 Difference]: With dead ends: 133 [2021-08-27 06:22:22,309 INFO L226 Difference]: Without dead ends: 131 [2021-08-27 06:22:22,311 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 35.9ms TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-08-27 06:22:22,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-08-27 06:22:22,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2021-08-27 06:22:22,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 82 states have (on average 1.2073170731707317) internal successors, (99), 95 states have internal predecessors, (99), 19 states have call successors, (19), 18 states have call predecessors, (19), 17 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-08-27 06:22:22,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 136 transitions. [2021-08-27 06:22:22,314 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 136 transitions. Word has length 60 [2021-08-27 06:22:22,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:22:22,315 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 136 transitions. [2021-08-27 06:22:22,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 06:22:22,315 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 136 transitions. [2021-08-27 06:22:22,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-08-27 06:22:22,316 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:22:22,317 INFO L512 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:22:22,337 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-08-27 06:22:22,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:22:22,538 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_atomic_sub_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:22:22,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:22:22,538 INFO L82 PathProgramCache]: Analyzing trace with hash -1123996245, now seen corresponding path program 1 times [2021-08-27 06:22:22,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:22:22,539 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [484182673] [2021-08-27 06:22:22,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:22:22,539 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:22:22,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:22:22,540 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:22:22,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-08-27 06:22:23,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:22:23,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-27 06:22:23,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:22:23,457 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:22:23,458 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:22:23,800 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:22:23,800 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:22:23,800 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [484182673] [2021-08-27 06:22:23,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [484182673] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:22:23,800 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:22:23,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 11 [2021-08-27 06:22:23,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339187775] [2021-08-27 06:22:23,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-27 06:22:23,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:22:23,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-27 06:22:23,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-08-27 06:22:23,802 INFO L87 Difference]: Start difference. First operand 131 states and 136 transitions. Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 10 states have internal predecessors, (35), 5 states have call successors, (14), 2 states have call predecessors, (14), 5 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2021-08-27 06:22:23,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:22:23,871 INFO L93 Difference]: Finished difference Result 135 states and 139 transitions. [2021-08-27 06:22:23,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-27 06:22:23,874 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 10 states have internal predecessors, (35), 5 states have call successors, (14), 2 states have call predecessors, (14), 5 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) Word has length 65 [2021-08-27 06:22:23,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:22:23,875 INFO L225 Difference]: With dead ends: 135 [2021-08-27 06:22:23,875 INFO L226 Difference]: Without dead ends: 131 [2021-08-27 06:22:23,875 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 86.6ms TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-08-27 06:22:23,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-08-27 06:22:23,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2021-08-27 06:22:23,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 82 states have (on average 1.1951219512195121) internal successors, (98), 94 states have internal predecessors, (98), 19 states have call successors, (19), 18 states have call predecessors, (19), 17 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-08-27 06:22:23,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 135 transitions. [2021-08-27 06:22:23,880 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 135 transitions. Word has length 65 [2021-08-27 06:22:23,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:22:23,880 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 135 transitions. [2021-08-27 06:22:23,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 10 states have internal predecessors, (35), 5 states have call successors, (14), 2 states have call predecessors, (14), 5 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2021-08-27 06:22:23,880 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 135 transitions. [2021-08-27 06:22:23,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-08-27 06:22:23,881 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:22:23,881 INFO L512 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:22:23,891 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-08-27 06:22:24,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:22:24,089 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_atomic_sub_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:22:24,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:22:24,089 INFO L82 PathProgramCache]: Analyzing trace with hash -638447166, now seen corresponding path program 1 times [2021-08-27 06:22:24,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:22:24,089 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1125566518] [2021-08-27 06:22:24,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:22:24,090 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:22:24,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:22:24,101 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:22:24,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-08-27 06:22:24,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:22:24,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 26 conjunts are in the unsatisfiable core [2021-08-27 06:22:24,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:22:24,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-08-27 06:22:25,263 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:22:25,263 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:22:25,730 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:22:25,730 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:22:25,731 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1125566518] [2021-08-27 06:22:25,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1125566518] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:22:25,731 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:22:25,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18, 17] imperfect sequences [] total 18 [2021-08-27 06:22:25,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129985608] [2021-08-27 06:22:25,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-08-27 06:22:25,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:22:25,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-08-27 06:22:25,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2021-08-27 06:22:25,733 INFO L87 Difference]: Start difference. First operand 131 states and 135 transitions. Second operand has 19 states, 14 states have (on average 4.0) internal successors, (56), 12 states have internal predecessors, (56), 8 states have call successors, (20), 7 states have call predecessors, (20), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2021-08-27 06:22:26,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:22:26,724 INFO L93 Difference]: Finished difference Result 183 states and 200 transitions. [2021-08-27 06:22:26,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-27 06:22:26,725 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 14 states have (on average 4.0) internal successors, (56), 12 states have internal predecessors, (56), 8 states have call successors, (20), 7 states have call predecessors, (20), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) Word has length 76 [2021-08-27 06:22:26,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:22:26,726 INFO L225 Difference]: With dead ends: 183 [2021-08-27 06:22:26,726 INFO L226 Difference]: Without dead ends: 183 [2021-08-27 06:22:26,726 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 118 SyntacticMatches, 16 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 454.1ms TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2021-08-27 06:22:26,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-08-27 06:22:26,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 157. [2021-08-27 06:22:26,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 100 states have (on average 1.19) internal successors, (119), 113 states have internal predecessors, (119), 22 states have call successors, (22), 22 states have call predecessors, (22), 23 states have return successors, (26), 21 states have call predecessors, (26), 21 states have call successors, (26) [2021-08-27 06:22:26,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 167 transitions. [2021-08-27 06:22:26,732 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 167 transitions. Word has length 76 [2021-08-27 06:22:26,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:22:26,733 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 167 transitions. [2021-08-27 06:22:26,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 14 states have (on average 4.0) internal successors, (56), 12 states have internal predecessors, (56), 8 states have call successors, (20), 7 states have call predecessors, (20), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2021-08-27 06:22:26,733 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 167 transitions. [2021-08-27 06:22:26,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-08-27 06:22:26,734 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:22:26,734 INFO L512 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:22:26,749 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-08-27 06:22:26,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:22:26,946 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_atomic_sub_returnErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:22:26,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:22:26,947 INFO L82 PathProgramCache]: Analyzing trace with hash -638447165, now seen corresponding path program 1 times [2021-08-27 06:22:26,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:22:26,947 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [296147352] [2021-08-27 06:22:26,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:22:26,947 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:22:26,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:22:26,948 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:22:26,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-08-27 06:22:27,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:22:27,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 36 conjunts are in the unsatisfiable core [2021-08-27 06:22:27,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:22:27,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-08-27 06:22:28,531 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:22:28,531 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:22:30,340 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:22:30,341 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:22:30,341 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [296147352] [2021-08-27 06:22:30,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [296147352] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:22:30,341 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:22:30,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19, 18] imperfect sequences [] total 36 [2021-08-27 06:22:30,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697020568] [2021-08-27 06:22:30,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-08-27 06:22:30,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:22:30,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-08-27 06:22:30,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=1229, Unknown=0, NotChecked=0, Total=1332 [2021-08-27 06:22:30,343 INFO L87 Difference]: Start difference. First operand 157 states and 167 transitions. Second operand has 37 states, 28 states have (on average 2.5714285714285716) internal successors, (72), 23 states have internal predecessors, (72), 14 states have call successors, (25), 12 states have call predecessors, (25), 6 states have return successors, (15), 8 states have call predecessors, (15), 4 states have call successors, (15) [2021-08-27 06:22:33,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:22:33,229 INFO L93 Difference]: Finished difference Result 155 states and 163 transitions. [2021-08-27 06:22:33,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-27 06:22:33,230 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 28 states have (on average 2.5714285714285716) internal successors, (72), 23 states have internal predecessors, (72), 14 states have call successors, (25), 12 states have call predecessors, (25), 6 states have return successors, (15), 8 states have call predecessors, (15), 4 states have call successors, (15) Word has length 76 [2021-08-27 06:22:33,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:22:33,231 INFO L225 Difference]: With dead ends: 155 [2021-08-27 06:22:33,231 INFO L226 Difference]: Without dead ends: 155 [2021-08-27 06:22:33,232 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 113 SyntacticMatches, 3 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 425 ImplicationChecksByTransitivity, 2072.3ms TimeCoverageRelationStatistics Valid=151, Invalid=1741, Unknown=0, NotChecked=0, Total=1892 [2021-08-27 06:22:33,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2021-08-27 06:22:33,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2021-08-27 06:22:33,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 100 states have (on average 1.15) internal successors, (115), 111 states have internal predecessors, (115), 22 states have call successors, (22), 22 states have call predecessors, (22), 23 states have return successors, (26), 21 states have call predecessors, (26), 21 states have call successors, (26) [2021-08-27 06:22:33,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 163 transitions. [2021-08-27 06:22:33,237 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 163 transitions. Word has length 76 [2021-08-27 06:22:33,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:22:33,237 INFO L470 AbstractCegarLoop]: Abstraction has 155 states and 163 transitions. [2021-08-27 06:22:33,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 28 states have (on average 2.5714285714285716) internal successors, (72), 23 states have internal predecessors, (72), 14 states have call successors, (25), 12 states have call predecessors, (25), 6 states have return successors, (15), 8 states have call predecessors, (15), 4 states have call successors, (15) [2021-08-27 06:22:33,238 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 163 transitions. [2021-08-27 06:22:33,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-08-27 06:22:33,238 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:22:33,239 INFO L512 BasicCegarLoop]: trace histogram [16, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:22:33,249 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Ended with exit code 0 [2021-08-27 06:22:33,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:22:33,445 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_atomic_sub_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:22:33,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:22:33,445 INFO L82 PathProgramCache]: Analyzing trace with hash 1131008798, now seen corresponding path program 1 times [2021-08-27 06:22:33,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:22:33,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [251061927] [2021-08-27 06:22:33,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:22:33,446 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:22:33,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:22:33,447 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:22:33,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-08-27 06:22:34,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:22:34,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-27 06:22:34,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:22:34,520 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:22:34,520 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:22:34,893 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:22:34,893 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:22:34,893 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [251061927] [2021-08-27 06:22:34,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [251061927] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:22:34,893 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:22:34,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 14 [2021-08-27 06:22:34,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778718332] [2021-08-27 06:22:34,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-08-27 06:22:34,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:22:34,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-08-27 06:22:34,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-08-27 06:22:34,895 INFO L87 Difference]: Start difference. First operand 155 states and 163 transitions. Second operand has 14 states, 11 states have (on average 4.090909090909091) internal successors, (45), 12 states have internal predecessors, (45), 6 states have call successors, (17), 2 states have call predecessors, (17), 5 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2021-08-27 06:22:35,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:22:35,032 INFO L93 Difference]: Finished difference Result 159 states and 165 transitions. [2021-08-27 06:22:35,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 06:22:35,033 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 4.090909090909091) internal successors, (45), 12 states have internal predecessors, (45), 6 states have call successors, (17), 2 states have call predecessors, (17), 5 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) Word has length 83 [2021-08-27 06:22:35,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:22:35,034 INFO L225 Difference]: With dead ends: 159 [2021-08-27 06:22:35,034 INFO L226 Difference]: Without dead ends: 153 [2021-08-27 06:22:35,034 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 120.6ms TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-08-27 06:22:35,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-08-27 06:22:35,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2021-08-27 06:22:35,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 99 states have (on average 1.1313131313131313) internal successors, (112), 109 states have internal predecessors, (112), 22 states have call successors, (22), 22 states have call predecessors, (22), 22 states have return successors, (25), 21 states have call predecessors, (25), 21 states have call successors, (25) [2021-08-27 06:22:35,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 159 transitions. [2021-08-27 06:22:35,038 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 159 transitions. Word has length 83 [2021-08-27 06:22:35,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:22:35,039 INFO L470 AbstractCegarLoop]: Abstraction has 153 states and 159 transitions. [2021-08-27 06:22:35,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 4.090909090909091) internal successors, (45), 12 states have internal predecessors, (45), 6 states have call successors, (17), 2 states have call predecessors, (17), 5 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2021-08-27 06:22:35,039 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 159 transitions. [2021-08-27 06:22:35,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-08-27 06:22:35,041 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:22:35,041 INFO L512 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:22:35,059 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-08-27 06:22:35,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:22:35,255 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_kobject_cleanupErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:22:35,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:22:35,255 INFO L82 PathProgramCache]: Analyzing trace with hash 1628283129, now seen corresponding path program 1 times [2021-08-27 06:22:35,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:22:35,255 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1089972923] [2021-08-27 06:22:35,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:22:35,255 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:22:35,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:22:35,256 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:22:35,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-08-27 06:22:36,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:22:36,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 38 conjunts are in the unsatisfiable core [2021-08-27 06:22:36,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:22:36,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-08-27 06:22:36,832 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:22:36,832 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:22:37,349 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:22:37,349 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:22:37,349 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1089972923] [2021-08-27 06:22:37,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1089972923] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:22:37,350 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:22:37,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22, 21] imperfect sequences [] total 22 [2021-08-27 06:22:37,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132927044] [2021-08-27 06:22:37,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-08-27 06:22:37,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:22:37,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-08-27 06:22:37,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2021-08-27 06:22:37,352 INFO L87 Difference]: Start difference. First operand 153 states and 159 transitions. Second operand has 23 states, 17 states have (on average 4.176470588235294) internal successors, (71), 14 states have internal predecessors, (71), 10 states have call successors, (24), 9 states have call predecessors, (24), 4 states have return successors, (15), 6 states have call predecessors, (15), 4 states have call successors, (15) [2021-08-27 06:22:38,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:22:38,646 INFO L93 Difference]: Finished difference Result 186 states and 202 transitions. [2021-08-27 06:22:38,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-27 06:22:38,646 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 17 states have (on average 4.176470588235294) internal successors, (71), 14 states have internal predecessors, (71), 10 states have call successors, (24), 9 states have call predecessors, (24), 4 states have return successors, (15), 6 states have call predecessors, (15), 4 states have call successors, (15) Word has length 89 [2021-08-27 06:22:38,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:22:38,647 INFO L225 Difference]: With dead ends: 186 [2021-08-27 06:22:38,647 INFO L226 Difference]: Without dead ends: 186 [2021-08-27 06:22:38,648 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 138 SyntacticMatches, 18 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 662.7ms TimeCoverageRelationStatistics Valid=103, Invalid=827, Unknown=0, NotChecked=0, Total=930 [2021-08-27 06:22:38,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2021-08-27 06:22:38,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 159. [2021-08-27 06:22:38,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 103 states have (on average 1.1262135922330097) internal successors, (116), 112 states have internal predecessors, (116), 25 states have call successors, (25), 25 states have call predecessors, (25), 22 states have return successors, (28), 21 states have call predecessors, (28), 24 states have call successors, (28) [2021-08-27 06:22:38,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 169 transitions. [2021-08-27 06:22:38,653 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 169 transitions. Word has length 89 [2021-08-27 06:22:38,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:22:38,653 INFO L470 AbstractCegarLoop]: Abstraction has 159 states and 169 transitions. [2021-08-27 06:22:38,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 17 states have (on average 4.176470588235294) internal successors, (71), 14 states have internal predecessors, (71), 10 states have call successors, (24), 9 states have call predecessors, (24), 4 states have return successors, (15), 6 states have call predecessors, (15), 4 states have call successors, (15) [2021-08-27 06:22:38,654 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 169 transitions. [2021-08-27 06:22:38,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-08-27 06:22:38,655 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:22:38,655 INFO L512 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:22:38,669 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-08-27 06:22:38,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:22:38,865 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_kobject_cleanupErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:22:38,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:22:38,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1628283130, now seen corresponding path program 1 times [2021-08-27 06:22:38,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:22:38,866 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1423189469] [2021-08-27 06:22:38,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:22:38,866 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:22:38,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:22:38,867 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:22:38,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-08-27 06:22:39,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:22:39,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 48 conjunts are in the unsatisfiable core [2021-08-27 06:22:39,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:22:39,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-08-27 06:22:40,651 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:22:40,651 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:22:43,062 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:22:43,062 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:22:43,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1423189469] [2021-08-27 06:22:43,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1423189469] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:22:43,063 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:22:43,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23, 22] imperfect sequences [] total 44 [2021-08-27 06:22:43,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520174322] [2021-08-27 06:22:43,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2021-08-27 06:22:43,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:22:43,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-08-27 06:22:43,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=1853, Unknown=0, NotChecked=0, Total=1980 [2021-08-27 06:22:43,065 INFO L87 Difference]: Start difference. First operand 159 states and 169 transitions. Second operand has 45 states, 34 states have (on average 2.6470588235294117) internal successors, (90), 27 states have internal predecessors, (90), 18 states have call successors, (31), 16 states have call predecessors, (31), 6 states have return successors, (17), 10 states have call predecessors, (17), 6 states have call successors, (17) [2021-08-27 06:22:46,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:22:46,827 INFO L93 Difference]: Finished difference Result 157 states and 166 transitions. [2021-08-27 06:22:46,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-08-27 06:22:46,828 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 34 states have (on average 2.6470588235294117) internal successors, (90), 27 states have internal predecessors, (90), 18 states have call successors, (31), 16 states have call predecessors, (31), 6 states have return successors, (17), 10 states have call predecessors, (17), 6 states have call successors, (17) Word has length 89 [2021-08-27 06:22:46,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:22:46,829 INFO L225 Difference]: With dead ends: 157 [2021-08-27 06:22:46,829 INFO L226 Difference]: Without dead ends: 157 [2021-08-27 06:22:46,829 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 129 SyntacticMatches, 5 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 674 ImplicationChecksByTransitivity, 2780.9ms TimeCoverageRelationStatistics Valid=189, Invalid=2673, Unknown=0, NotChecked=0, Total=2862 [2021-08-27 06:22:46,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2021-08-27 06:22:46,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2021-08-27 06:22:46,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 103 states have (on average 1.0970873786407767) internal successors, (113), 110 states have internal predecessors, (113), 25 states have call successors, (25), 25 states have call predecessors, (25), 22 states have return successors, (28), 21 states have call predecessors, (28), 24 states have call successors, (28) [2021-08-27 06:22:46,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 166 transitions. [2021-08-27 06:22:46,833 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 166 transitions. Word has length 89 [2021-08-27 06:22:46,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:22:46,834 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 166 transitions. [2021-08-27 06:22:46,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 34 states have (on average 2.6470588235294117) internal successors, (90), 27 states have internal predecessors, (90), 18 states have call successors, (31), 16 states have call predecessors, (31), 6 states have return successors, (17), 10 states have call predecessors, (17), 6 states have call successors, (17) [2021-08-27 06:22:46,834 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 166 transitions. [2021-08-27 06:22:46,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-08-27 06:22:46,835 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:22:46,835 INFO L512 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:22:46,861 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-08-27 06:22:47,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:22:47,062 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:22:47,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:22:47,062 INFO L82 PathProgramCache]: Analyzing trace with hash 822322196, now seen corresponding path program 1 times [2021-08-27 06:22:47,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:22:47,062 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [714592616] [2021-08-27 06:22:47,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:22:47,063 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:22:47,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:22:47,063 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:22:47,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-08-27 06:22:48,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:22:48,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 25 conjunts are in the unsatisfiable core [2021-08-27 06:22:48,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:22:49,450 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:22:49,451 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:22:50,408 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:22:50,408 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:22:50,408 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [714592616] [2021-08-27 06:22:50,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [714592616] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:22:50,408 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:22:50,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23, 21] imperfect sequences [] total 43 [2021-08-27 06:22:50,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772283465] [2021-08-27 06:22:50,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2021-08-27 06:22:50,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:22:50,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-08-27 06:22:50,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=1726, Unknown=0, NotChecked=0, Total=1892 [2021-08-27 06:22:50,410 INFO L87 Difference]: Start difference. First operand 157 states and 166 transitions. Second operand has 44 states, 33 states have (on average 3.0303030303030303) internal successors, (100), 26 states have internal predecessors, (100), 19 states have call successors, (35), 17 states have call predecessors, (35), 7 states have return successors, (18), 11 states have call predecessors, (18), 7 states have call successors, (18) [2021-08-27 06:22:52,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:22:52,229 INFO L93 Difference]: Finished difference Result 156 states and 165 transitions. [2021-08-27 06:22:52,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-08-27 06:22:52,232 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 33 states have (on average 3.0303030303030303) internal successors, (100), 26 states have internal predecessors, (100), 19 states have call successors, (35), 17 states have call predecessors, (35), 7 states have return successors, (18), 11 states have call predecessors, (18), 7 states have call successors, (18) Word has length 92 [2021-08-27 06:22:52,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:22:52,232 INFO L225 Difference]: With dead ends: 156 [2021-08-27 06:22:52,232 INFO L226 Difference]: Without dead ends: 156 [2021-08-27 06:22:52,233 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 136 SyntacticMatches, 5 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 611 ImplicationChecksByTransitivity, 1630.1ms TimeCoverageRelationStatistics Valid=230, Invalid=2422, Unknown=0, NotChecked=0, Total=2652 [2021-08-27 06:22:52,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2021-08-27 06:22:52,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2021-08-27 06:22:52,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 103 states have (on average 1.087378640776699) internal successors, (112), 109 states have internal predecessors, (112), 25 states have call successors, (25), 25 states have call predecessors, (25), 22 states have return successors, (28), 21 states have call predecessors, (28), 24 states have call successors, (28) [2021-08-27 06:22:52,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 165 transitions. [2021-08-27 06:22:52,238 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 165 transitions. Word has length 92 [2021-08-27 06:22:52,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:22:52,238 INFO L470 AbstractCegarLoop]: Abstraction has 156 states and 165 transitions. [2021-08-27 06:22:52,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 33 states have (on average 3.0303030303030303) internal successors, (100), 26 states have internal predecessors, (100), 19 states have call successors, (35), 17 states have call predecessors, (35), 7 states have return successors, (18), 11 states have call predecessors, (18), 7 states have call successors, (18) [2021-08-27 06:22:52,239 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 165 transitions. [2021-08-27 06:22:52,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-08-27 06:22:52,240 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:22:52,240 INFO L512 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:22:52,265 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-08-27 06:22:52,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:22:52,454 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:22:52,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:22:52,454 INFO L82 PathProgramCache]: Analyzing trace with hash -692582595, now seen corresponding path program 1 times [2021-08-27 06:22:52,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:22:52,454 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1506021537] [2021-08-27 06:22:52,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:22:52,454 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:22:52,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:22:52,455 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:22:52,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-08-27 06:22:53,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:22:53,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 121 conjunts are in the unsatisfiable core [2021-08-27 06:22:53,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:22:53,700 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-08-27 06:22:53,734 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-08-27 06:22:53,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-08-27 06:22:53,824 INFO L354 Elim1Store]: treesize reduction 68, result has 20.9 percent of original size [2021-08-27 06:22:53,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 38 treesize of output 40 [2021-08-27 06:22:53,918 INFO L354 Elim1Store]: treesize reduction 126, result has 18.2 percent of original size [2021-08-27 06:22:53,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 50 treesize of output 55 [2021-08-27 06:22:54,066 INFO L354 Elim1Store]: treesize reduction 198, result has 16.1 percent of original size [2021-08-27 06:22:54,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 62 treesize of output 70 [2021-08-27 06:22:54,306 INFO L354 Elim1Store]: treesize reduction 246, result has 15.2 percent of original size [2021-08-27 06:22:54,306 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 69 treesize of output 80 [2021-08-27 06:22:54,594 INFO L354 Elim1Store]: treesize reduction 332, result has 13.8 percent of original size [2021-08-27 06:22:54,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 80 treesize of output 94 [2021-08-27 06:22:54,939 INFO L354 Elim1Store]: treesize reduction 444, result has 12.3 percent of original size [2021-08-27 06:22:54,939 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 92 treesize of output 109 [2021-08-27 06:22:55,309 INFO L354 Elim1Store]: treesize reduction 540, result has 11.6 percent of original size [2021-08-27 06:22:55,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 102 treesize of output 122 [2021-08-27 06:22:55,769 INFO L354 Elim1Store]: treesize reduction 680, result has 10.5 percent of original size [2021-08-27 06:22:55,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 45 case distinctions, treesize of input 114 treesize of output 137 [2021-08-27 06:22:56,305 INFO L354 Elim1Store]: treesize reduction 828, result has 9.8 percent of original size [2021-08-27 06:22:56,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 55 case distinctions, treesize of input 126 treesize of output 152 [2021-08-27 06:22:56,945 INFO L354 Elim1Store]: treesize reduction 990, result has 9.2 percent of original size [2021-08-27 06:22:56,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 66 case distinctions, treesize of input 138 treesize of output 167 [2021-08-27 06:22:57,805 INFO L354 Elim1Store]: treesize reduction 1100, result has 8.9 percent of original size [2021-08-27 06:22:57,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 78 case distinctions, treesize of input 146 treesize of output 178 [2021-08-27 06:22:58,770 INFO L354 Elim1Store]: treesize reduction 1270, result has 8.4 percent of original size [2021-08-27 06:22:58,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 91 case distinctions, treesize of input 157 treesize of output 192 [2021-08-27 06:22:59,875 INFO L354 Elim1Store]: treesize reduction 1452, result has 7.9 percent of original size [2021-08-27 06:22:59,875 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 105 case distinctions, treesize of input 168 treesize of output 206 [2021-08-27 06:23:01,171 INFO L354 Elim1Store]: treesize reduction 1646, result has 7.5 percent of original size [2021-08-27 06:23:01,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 0 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 120 case distinctions, treesize of input 179 treesize of output 220 [2021-08-27 06:23:05,850 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_internal_#in~kobj.base| (let ((.cse0 (bvadd (_ bv4 32) |c_ldv_kobject_init_internal_#in~kobj.offset|))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_internal_#in~kobj.base|) (bvadd |c_ldv_kobject_init_internal_#in~kobj.offset| (_ bv12 32)) v_DerPreprocessor_1) (bvadd (_ bv13 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_2) (bvadd (_ bv14 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_3) (bvadd (_ bv15 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_4) .cse0 .cse0) (bvadd (_ bv8 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) .cse0))) |c_#memory_$Pointer$.offset|)) is different from true [2021-08-27 06:23:07,893 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_#in~kobj.base| (let ((.cse0 (bvadd (_ bv4 32) |c_ldv_kobject_init_#in~kobj.offset|))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_#in~kobj.base|) (bvadd |c_ldv_kobject_init_#in~kobj.offset| (_ bv12 32)) v_DerPreprocessor_1) (bvadd (_ bv13 32) |c_ldv_kobject_init_#in~kobj.offset|) v_DerPreprocessor_2) (bvadd (_ bv14 32) |c_ldv_kobject_init_#in~kobj.offset|) v_DerPreprocessor_3) (bvadd |c_ldv_kobject_init_#in~kobj.offset| (_ bv15 32)) v_DerPreprocessor_4) .cse0 .cse0) (bvadd (_ bv8 32) |c_ldv_kobject_init_#in~kobj.offset|) .cse0))))) is different from true [2021-08-27 06:23:07,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:07,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:08,072 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:23:08,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 120 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 185 treesize of output 195 [2021-08-27 06:23:12,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:12,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:12,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:12,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:12,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:12,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:12,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:12,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:12,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:12,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:12,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:12,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:12,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:12,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:12,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:12,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:12,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:12,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:12,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:12,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:12,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:12,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:12,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:12,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:12,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:12,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:12,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:12,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:12,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:12,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:12,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:12,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:12,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:12,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:12,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:12,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:12,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:12,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:12,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:12,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:12,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:12,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:12,467 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:23:12,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 120 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 133 treesize of output 121 [2021-08-27 06:23:14,427 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:23:14,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 66 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 92 treesize of output 40 [2021-08-27 06:23:14,762 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:23:14,762 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:25:31,963 WARN L207 SmtUtils]: Spent 2.20 m on a formula simplification that was a NOOP. DAG size: 152 [2021-08-27 06:25:45,767 WARN L207 SmtUtils]: Spent 12.21 s on a formula simplification that was a NOOP. DAG size: 106 [2021-08-27 06:25:52,362 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:25:52,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1506021537] [2021-08-27 06:25:52,362 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:25:52,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [445381845] [2021-08-27 06:25:52,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:25:52,363 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-08-27 06:25:52,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2021-08-27 06:25:52,373 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-08-27 06:25:52,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2021-08-27 06:25:54,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:25:54,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 117 conjunts are in the unsatisfiable core [2021-08-27 06:25:54,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:25:54,279 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-08-27 06:25:54,317 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-08-27 06:25:54,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-08-27 06:25:54,394 INFO L354 Elim1Store]: treesize reduction 68, result has 20.9 percent of original size [2021-08-27 06:25:54,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 38 treesize of output 40 [2021-08-27 06:25:54,518 INFO L354 Elim1Store]: treesize reduction 110, result has 19.1 percent of original size [2021-08-27 06:25:54,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 47 treesize of output 52 [2021-08-27 06:25:54,760 INFO L354 Elim1Store]: treesize reduction 198, result has 16.1 percent of original size [2021-08-27 06:25:54,760 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 62 treesize of output 70 [2021-08-27 06:25:55,008 INFO L354 Elim1Store]: treesize reduction 284, result has 14.5 percent of original size [2021-08-27 06:25:55,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 74 treesize of output 85 [2021-08-27 06:25:55,344 INFO L354 Elim1Store]: treesize reduction 344, result has 13.4 percent of original size [2021-08-27 06:25:55,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 81 treesize of output 95 [2021-08-27 06:25:55,744 INFO L354 Elim1Store]: treesize reduction 444, result has 12.3 percent of original size [2021-08-27 06:25:55,745 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 92 treesize of output 109 [2021-08-27 06:25:56,104 INFO L354 Elim1Store]: treesize reduction 540, result has 11.6 percent of original size [2021-08-27 06:25:56,104 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 102 treesize of output 122 [2021-08-27 06:25:56,571 INFO L354 Elim1Store]: treesize reduction 680, result has 10.5 percent of original size [2021-08-27 06:25:56,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 45 case distinctions, treesize of input 114 treesize of output 137 [2021-08-27 06:25:57,167 INFO L354 Elim1Store]: treesize reduction 796, result has 10.1 percent of original size [2021-08-27 06:25:57,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 55 case distinctions, treesize of input 124 treesize of output 150 [2021-08-27 06:25:58,049 INFO L354 Elim1Store]: treesize reduction 990, result has 9.2 percent of original size [2021-08-27 06:25:58,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 66 case distinctions, treesize of input 138 treesize of output 167 [2021-08-27 06:25:58,937 INFO L354 Elim1Store]: treesize reduction 1166, result has 8.6 percent of original size [2021-08-27 06:25:58,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 78 case distinctions, treesize of input 150 treesize of output 182 [2021-08-27 06:26:00,214 INFO L354 Elim1Store]: treesize reduction 1270, result has 8.4 percent of original size [2021-08-27 06:26:00,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 91 case distinctions, treesize of input 157 treesize of output 192 [2021-08-27 06:26:01,389 INFO L354 Elim1Store]: treesize reduction 1480, result has 7.8 percent of original size [2021-08-27 06:26:01,389 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 105 case distinctions, treesize of input 169 treesize of output 207 [2021-08-27 06:26:03,014 INFO L354 Elim1Store]: treesize reduction 1646, result has 7.5 percent of original size [2021-08-27 06:26:03,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 0 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 120 case distinctions, treesize of input 179 treesize of output 220 [2021-08-27 06:26:06,052 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_DerPreprocessor_21 (_ BitVec 32)) (v_DerPreprocessor_24 (_ BitVec 32)) (v_DerPreprocessor_22 (_ BitVec 32)) (v_DerPreprocessor_23 (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_internal_#in~kobj.base| (let ((.cse0 (bvadd (_ bv4 32) |c_ldv_kobject_init_internal_#in~kobj.offset|))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_internal_#in~kobj.base|) (bvadd |c_ldv_kobject_init_internal_#in~kobj.offset| (_ bv12 32)) v_DerPreprocessor_21) (bvadd (_ bv13 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_22) (bvadd (_ bv14 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_23) (bvadd (_ bv15 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_24) .cse0 .cse0) (bvadd (_ bv8 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) .cse0))) |c_#memory_$Pointer$.offset|)) is different from true [2021-08-27 06:26:08,095 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_DerPreprocessor_21 (_ BitVec 32)) (v_DerPreprocessor_24 (_ BitVec 32)) (v_DerPreprocessor_22 (_ BitVec 32)) (v_DerPreprocessor_23 (_ BitVec 32))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_#in~kobj.base| (let ((.cse0 (bvadd (_ bv4 32) |c_ldv_kobject_init_#in~kobj.offset|))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_#in~kobj.base|) (bvadd |c_ldv_kobject_init_#in~kobj.offset| (_ bv12 32)) v_DerPreprocessor_21) (bvadd (_ bv13 32) |c_ldv_kobject_init_#in~kobj.offset|) v_DerPreprocessor_22) (bvadd (_ bv14 32) |c_ldv_kobject_init_#in~kobj.offset|) v_DerPreprocessor_23) (bvadd |c_ldv_kobject_init_#in~kobj.offset| (_ bv15 32)) v_DerPreprocessor_24) .cse0 .cse0) (bvadd (_ bv8 32) |c_ldv_kobject_init_#in~kobj.offset|) .cse0))))) is different from true [2021-08-27 06:26:08,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:08,383 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:26:08,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 120 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 185 treesize of output 195 [2021-08-27 06:26:10,012 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:26:10,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 120 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 121 treesize of output 121 [2021-08-27 06:26:14,516 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:26:14,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 13 select indices, 13 select index equivalence classes, 66 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 78 case distinctions, treesize of input 92 treesize of output 136 [2021-08-27 06:26:15,902 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:26:15,903 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:28:44,849 WARN L207 SmtUtils]: Spent 2.22 m on a formula simplification that was a NOOP. DAG size: 152 [2021-08-27 06:28:55,555 WARN L207 SmtUtils]: Spent 9.06 s on a formula simplification that was a NOOP. DAG size: 110 [2021-08-27 06:29:07,795 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:29:07,795 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730890234] [2021-08-27 06:29:07,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:29:07,795 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 06:29:07,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 06:29:07,796 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 06:29:07,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-08-27 06:29:09,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:29:09,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 123 conjunts are in the unsatisfiable core [2021-08-27 06:29:09,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:29:09,493 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-08-27 06:29:09,536 INFO L354 Elim1Store]: treesize reduction 23, result has 23.3 percent of original size [2021-08-27 06:29:09,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2021-08-27 06:29:09,631 INFO L354 Elim1Store]: treesize reduction 60, result has 22.1 percent of original size [2021-08-27 06:29:09,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 36 treesize of output 38 [2021-08-27 06:29:09,772 INFO L354 Elim1Store]: treesize reduction 110, result has 19.1 percent of original size [2021-08-27 06:29:09,773 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 47 treesize of output 52 [2021-08-27 06:29:09,982 INFO L354 Elim1Store]: treesize reduction 198, result has 16.1 percent of original size [2021-08-27 06:29:09,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 62 treesize of output 70 [2021-08-27 06:29:10,179 INFO L354 Elim1Store]: treesize reduction 246, result has 15.2 percent of original size [2021-08-27 06:29:10,179 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 69 treesize of output 80 [2021-08-27 06:29:10,449 INFO L354 Elim1Store]: treesize reduction 332, result has 13.8 percent of original size [2021-08-27 06:29:10,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 80 treesize of output 94 [2021-08-27 06:29:10,766 INFO L354 Elim1Store]: treesize reduction 430, result has 12.6 percent of original size [2021-08-27 06:29:10,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 91 treesize of output 108 [2021-08-27 06:29:11,255 INFO L354 Elim1Store]: treesize reduction 566, result has 11.3 percent of original size [2021-08-27 06:29:11,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 104 treesize of output 124 [2021-08-27 06:29:11,853 INFO L354 Elim1Store]: treesize reduction 662, result has 10.8 percent of original size [2021-08-27 06:29:11,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 45 case distinctions, treesize of input 113 treesize of output 136 [2021-08-27 06:29:12,637 INFO L354 Elim1Store]: treesize reduction 796, result has 10.1 percent of original size [2021-08-27 06:29:12,637 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 55 case distinctions, treesize of input 124 treesize of output 150 [2021-08-27 06:29:13,496 INFO L354 Elim1Store]: treesize reduction 990, result has 9.2 percent of original size [2021-08-27 06:29:13,496 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 66 case distinctions, treesize of input 138 treesize of output 167 [2021-08-27 06:29:14,338 INFO L354 Elim1Store]: treesize reduction 1100, result has 8.9 percent of original size [2021-08-27 06:29:14,338 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 78 case distinctions, treesize of input 146 treesize of output 178 [2021-08-27 06:29:15,380 INFO L354 Elim1Store]: treesize reduction 1270, result has 8.4 percent of original size [2021-08-27 06:29:15,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 91 case distinctions, treesize of input 157 treesize of output 192 [2021-08-27 06:29:16,594 INFO L354 Elim1Store]: treesize reduction 1452, result has 7.9 percent of original size [2021-08-27 06:29:16,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 105 case distinctions, treesize of input 168 treesize of output 206 [2021-08-27 06:29:18,159 INFO L354 Elim1Store]: treesize reduction 1646, result has 7.5 percent of original size [2021-08-27 06:29:18,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 0 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 120 case distinctions, treesize of input 179 treesize of output 220 [2021-08-27 06:29:21,327 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_DerPreprocessor_42 (_ BitVec 32)) (v_DerPreprocessor_43 (_ BitVec 32)) (v_DerPreprocessor_41 (_ BitVec 32)) (v_DerPreprocessor_44 (_ BitVec 32))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_internal_#in~kobj.base| (let ((.cse0 (bvadd (_ bv4 32) |c_ldv_kobject_init_internal_#in~kobj.offset|))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_internal_#in~kobj.base|) (bvadd |c_ldv_kobject_init_internal_#in~kobj.offset| (_ bv12 32)) v_DerPreprocessor_41) (bvadd (_ bv13 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_42) (bvadd (_ bv14 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_43) (bvadd (_ bv15 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_44) .cse0 .cse0) (bvadd (_ bv8 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) .cse0))))) is different from true [2021-08-27 06:29:23,379 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_DerPreprocessor_42 (_ BitVec 32)) (v_DerPreprocessor_43 (_ BitVec 32)) (v_DerPreprocessor_41 (_ BitVec 32)) (v_DerPreprocessor_44 (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_#in~kobj.base| (let ((.cse0 (bvadd (_ bv4 32) |c_ldv_kobject_init_#in~kobj.offset|))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_#in~kobj.base|) (bvadd |c_ldv_kobject_init_#in~kobj.offset| (_ bv12 32)) v_DerPreprocessor_41) (bvadd (_ bv13 32) |c_ldv_kobject_init_#in~kobj.offset|) v_DerPreprocessor_42) (bvadd (_ bv14 32) |c_ldv_kobject_init_#in~kobj.offset|) v_DerPreprocessor_43) (bvadd |c_ldv_kobject_init_#in~kobj.offset| (_ bv15 32)) v_DerPreprocessor_44) .cse0 .cse0) (bvadd (_ bv8 32) |c_ldv_kobject_init_#in~kobj.offset|) .cse0))) |c_#memory_$Pointer$.offset|)) is different from true [2021-08-27 06:29:23,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:23,659 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:29:23,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 120 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 185 treesize of output 195 [2021-08-27 06:29:25,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:25,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:25,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:25,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:25,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:25,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:25,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:25,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:25,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:25,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:25,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:25,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:25,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:25,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:25,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:25,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:25,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:25,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:25,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:25,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:25,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:25,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:25,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:25,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:25,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:25,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:25,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:25,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:25,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:25,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:25,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:25,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:25,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:25,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:25,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:25,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:25,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:25,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:25,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:25,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:25,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:25,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:29:25,419 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:29:25,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 120 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 133 treesize of output 121 [2021-08-27 06:29:26,068 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:29:26,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 13 select indices, 13 select index equivalence classes, 66 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 78 case distinctions, treesize of input 92 treesize of output 43 [2021-08-27 06:29:26,969 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:29:26,969 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:31:50,367 WARN L207 SmtUtils]: Spent 2.20 m on a formula simplification that was a NOOP. DAG size: 152 [2021-08-27 06:31:59,775 WARN L207 SmtUtils]: Spent 7.56 s on a formula simplification that was a NOOP. DAG size: 106 [2021-08-27 06:32:10,183 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:32:10,184 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:32:10,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-08-27 06:32:10,184 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-08-27 06:32:10,184 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-08-27 06:32:10,187 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:32:10,189 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-08-27 06:32:10,189 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-08-27 06:32:10,189 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-08-27 06:32:10,189 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-08-27 06:32:10,189 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-08-27 06:32:10,189 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-08-27 06:32:10,189 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-08-27 06:32:10,189 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-08-27 06:32:10,189 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-08-27 06:32:10,189 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-08-27 06:32:10,189 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-08-27 06:32:10,189 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-08-27 06:32:10,189 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:32:10,189 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:32:10,190 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-08-27 06:32:10,190 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-08-27 06:32:10,190 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-08-27 06:32:10,190 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-08-27 06:32:10,190 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-08-27 06:32:10,190 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-08-27 06:32:10,190 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:32:10,190 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:32:10,190 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:32:10,190 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:32:10,190 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:32:10,190 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:32:10,190 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-08-27 06:32:10,190 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-08-27 06:32:10,190 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-08-27 06:32:10,190 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-08-27 06:32:10,191 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:32:10,191 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:32:10,191 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-08-27 06:32:10,191 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-08-27 06:32:10,191 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-08-27 06:32:10,191 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-08-27 06:32:10,191 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-08-27 06:32:10,191 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-08-27 06:32:10,191 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:32:10,191 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:32:10,191 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-08-27 06:32:10,191 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-08-27 06:32:10,191 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:32:10,191 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:32:10,191 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:32:10,191 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:32:10,192 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:32:10,192 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:32:10,192 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-08-27 06:32:10,192 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-08-27 06:32:10,192 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-08-27 06:32:10,192 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-08-27 06:32:10,192 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-08-27 06:32:10,192 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-08-27 06:32:10,192 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-08-27 06:32:10,192 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-08-27 06:32:10,193 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-08-27 06:32:10,193 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:32:10,193 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:32:10,193 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:32:10,193 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:32:10,193 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:32:10,193 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-08-27 06:32:10,193 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-08-27 06:32:10,193 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:32:10,194 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:32:10,194 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:32:10,194 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:32:10,194 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-08-27 06:32:10,194 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-08-27 06:32:10,202 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (25)] Forceful destruction successful, exit code 0 [2021-08-27 06:32:10,421 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2021-08-27 06:32:10,608 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Ended with exit code 0 [2021-08-27 06:32:10,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:32:10,799 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-27 06:32:10,802 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-08-27 06:32:10,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 06:32:10 BoogieIcfgContainer [2021-08-27 06:32:10,810 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-27 06:32:10,811 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 06:32:10,811 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 06:32:10,811 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 06:32:10,811 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:21:58" (3/4) ... [2021-08-27 06:32:10,813 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 06:32:10,813 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 06:32:10,814 INFO L168 Benchmark]: Toolchain (without parser) took 614190.83 ms. Allocated memory was 60.8 MB in the beginning and 339.7 MB in the end (delta: 278.9 MB). Free memory was 37.9 MB in the beginning and 93.3 MB in the end (delta: -55.4 MB). Peak memory consumption was 222.4 MB. Max. memory is 16.1 GB. [2021-08-27 06:32:10,815 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 60.8 MB. Free memory was 42.9 MB in the beginning and 42.9 MB in the end (delta: 42.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:32:10,815 INFO L168 Benchmark]: CACSL2BoogieTranslator took 598.26 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 37.7 MB in the beginning and 58.8 MB in the end (delta: -21.1 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. [2021-08-27 06:32:10,815 INFO L168 Benchmark]: Boogie Preprocessor took 105.71 ms. Allocated memory is still 77.6 MB. Free memory was 58.8 MB in the beginning and 54.1 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 06:32:10,815 INFO L168 Benchmark]: RCFGBuilder took 1280.16 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 54.1 MB in the beginning and 69.1 MB in the end (delta: -15.0 MB). Peak memory consumption was 28.2 MB. Max. memory is 16.1 GB. [2021-08-27 06:32:10,816 INFO L168 Benchmark]: TraceAbstraction took 612198.25 ms. Allocated memory was 94.4 MB in the beginning and 339.7 MB in the end (delta: 245.4 MB). Free memory was 68.5 MB in the beginning and 93.3 MB in the end (delta: -24.8 MB). Peak memory consumption was 220.9 MB. Max. memory is 16.1 GB. [2021-08-27 06:32:10,816 INFO L168 Benchmark]: Witness Printer took 2.91 ms. Allocated memory is still 339.7 MB. Free memory is still 93.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:32:10,817 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 60.8 MB. Free memory was 42.9 MB in the beginning and 42.9 MB in the end (delta: 42.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 598.26 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 37.7 MB in the beginning and 58.8 MB in the end (delta: -21.1 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 105.71 ms. Allocated memory is still 77.6 MB. Free memory was 58.8 MB in the beginning and 54.1 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1280.16 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 54.1 MB in the beginning and 69.1 MB in the end (delta: -15.0 MB). Peak memory consumption was 28.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 612198.25 ms. Allocated memory was 94.4 MB in the beginning and 339.7 MB in the end (delta: 245.4 MB). Free memory was 68.5 MB in the beginning and 93.3 MB in the end (delta: -24.8 MB). Peak memory consumption was 220.9 MB. Max. memory is 16.1 GB. * Witness Printer took 2.91 ms. Allocated memory is still 339.7 MB. Free memory is still 93.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L770] CALL entry_point() [L764] struct ldv_kobject *kobj; [L765] CALL, EXPR ldv_kobject_create() [L740] struct ldv_kobject *kobj; [L741] CALL, EXPR ldv_malloc(sizeof(*kobj)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L741] RET, EXPR ldv_malloc(sizeof(*kobj)) [L741] kobj = ldv_malloc(sizeof(*kobj)) [L742] COND FALSE !(!kobj) [L744] FCALL memset(kobj, 0, sizeof(*kobj)) [L745] CALL ldv_kobject_init(kobj) [L730] COND FALSE !(!kobj) [L733] CALL ldv_kobject_init_internal(kobj) [L723] COND FALSE !(!kobj) [L725] CALL ldv_kref_init(&kobj->kref) [L682] ((&kref->refcount)->counter) = (1) [L725] RET ldv_kref_init(&kobj->kref) [L726] CALL LDV_INIT_LIST_HEAD(&kobj->entry) [L540] list->next = list [L541] list->prev = list [L726] RET LDV_INIT_LIST_HEAD(&kobj->entry) [L733] RET ldv_kobject_init_internal(kobj) [L745] RET ldv_kobject_init(kobj) [L746] return kobj; [L765] RET, EXPR ldv_kobject_create() [L765] kobj = ldv_kobject_create() [L766] CALL f_22_put(kobj) [L761] CALL ldv_kobject_put(kobj) [L711] COND TRUE \read(*kobj) [L712] CALL ldv_kref_put(&kobj->kref, ldv_kobject_release) [L690] CALL ldv_kref_sub(kref, 1, release) [L674] CALL, EXPR ldv_atomic_sub_return(((int) count), (&kref->refcount)) [L665] int temp; [L666] EXPR v->counter [L666] temp = v->counter [L667] temp -= i [L668] v->counter = temp [L669] return temp; [L674] RET, EXPR ldv_atomic_sub_return(((int) count), (&kref->refcount)) [L674] COND TRUE (ldv_atomic_sub_return(((int) count), (&kref->refcount)) == 0) [L675] CALL release(kref) [L706] const typeof( ((struct ldv_kobject *)0)->kref ) *__mptr = (kref); [L706] struct ldv_kobject *kobj = ({ const typeof( ((struct ldv_kobject *)0)->kref ) *__mptr = (kref); (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) );}); [L707] CALL ldv_kobject_cleanup(kobj) [L699] EXPR kobj->name [L699] char *name = kobj->name; [L700] free(kobj) [L700] free(kobj) [L700] free(kobj) [L701] COND TRUE \read(*name) [L702] free(name) - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 769]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 49 procedures, 341 locations, 71 error locations. Started 1 CEGAR loops. OverallTime: 612135.4ms, OverallIterations: 23, TraceHistogramMax: 16, EmptinessCheckTime: 38.6ms, AutomataDifference: 17772.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 15.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 2409 SDtfs, 1258 SDslu, 19332 SDs, 0 SdLazy, 10820 SolverSat, 352 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12537.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2299 GetRequests, 1821 SyntacticMatches, 73 SemanticMatches, 405 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2296 ImplicationChecksByTransitivity, 11808.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=159occurred in iteration=20, InterpolantAutomatonStates: 281, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 156.6ms AutomataMinimizationTime, 22 MinimizatonAttempts, 134 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 432.9ms SsaConstructionTime, 1342.2ms SatisfiabilityAnalysisTime, 20668.1ms InterpolantComputationTime, 1124 NumberOfCodeBlocks, 1088 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 2204 ConstructedInterpolants, 306 QuantifiedInterpolants, 9559 SizeOfPredicates, 106 NumberOfNonLiveVariables, 4858 ConjunctsInSsa, 351 ConjunctsInUnsatCore, 44 InterpolantComputations, 38 PerfectInterpolantSequences, 2984/3242 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-08-27 06:32:10,876 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...