./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test6_2.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_test6_2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.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 098cac8041f427989b0fcb649de06793770da06a ................................................................................................................................... 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_test6_2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.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 098cac8041f427989b0fcb649de06793770da06a ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-free) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 06:24:05,327 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:24:05,329 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:24:05,359 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:24:05,360 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:24:05,363 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:24:05,364 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:24:05,368 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:24:05,370 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:24:05,373 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:24:05,374 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:24:05,377 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:24:05,377 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:24:05,379 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:24:05,380 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:24:05,383 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:24:05,384 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:24:05,384 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:24:05,386 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:24:05,390 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:24:05,391 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:24:05,392 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:24:05,393 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:24:05,394 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:24:05,399 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:24:05,399 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:24:05,399 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:24:05,401 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:24:05,401 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:24:05,401 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:24:05,402 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:24:05,402 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:24:05,403 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:24:05,404 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:24:05,405 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:24:05,405 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:24:05,406 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:24:05,406 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:24:05,406 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:24:05,407 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:24:05,407 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:24:05,411 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-08-27 06:24:05,446 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:24:05,446 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:24:05,447 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:24:05,447 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:24:05,448 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:24:05,448 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:24:05,448 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:24:05,449 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:24:05,449 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:24:05,449 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:24:05,449 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:24:05,449 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:24:05,449 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:24:05,450 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:24:05,450 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:24:05,450 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:24:05,450 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:24:05,450 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:24:05,450 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:24:05,450 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:24:05,450 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:24:05,450 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:24:05,450 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:24:05,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:24:05,451 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:24:05,451 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:24:05,451 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 06:24:05,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-27 06:24:05,451 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:24:05,451 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 098cac8041f427989b0fcb649de06793770da06a [2021-08-27 06:24:05,726 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:24:05,741 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:24:05,743 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:24:05,743 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:24:05,744 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:24:05,745 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test6_2.i [2021-08-27 06:24:05,789 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff0e9943d/976dae0b873943da957b4f57bba64e39/FLAG9d8c3e7ee [2021-08-27 06:24:06,142 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:24:06,142 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test6_2.i [2021-08-27 06:24:06,161 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff0e9943d/976dae0b873943da957b4f57bba64e39/FLAG9d8c3e7ee [2021-08-27 06:24:06,515 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff0e9943d/976dae0b873943da957b4f57bba64e39 [2021-08-27 06:24:06,516 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:24:06,517 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:24:06,518 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:24:06,518 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:24:06,525 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:24:06,526 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:24:06" (1/1) ... [2021-08-27 06:24:06,527 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a008c78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:24:06, skipping insertion in model container [2021-08-27 06:24:06,527 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:24:06" (1/1) ... [2021-08-27 06:24:06,532 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:24:06,566 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:24:06,798 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:24:06,813 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 06:24:06,813 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@69dea417 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:24:06, skipping insertion in model container [2021-08-27 06:24:06,813 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:24:06,814 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-08-27 06:24:06,816 INFO L168 Benchmark]: Toolchain (without parser) took 297.27 ms. Allocated memory is still 62.9 MB. Free memory was 41.1 MB in the beginning and 43.2 MB in the end (delta: -2.1 MB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. [2021-08-27 06:24:06,817 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 62.9 MB. Free memory was 43.5 MB in the beginning and 43.4 MB in the end (delta: 36.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:24:06,817 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.79 ms. Allocated memory is still 62.9 MB. Free memory was 40.9 MB in the beginning and 43.2 MB in the end (delta: -2.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. [2021-08-27 06:24:06,819 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 62.9 MB. Free memory was 43.5 MB in the beginning and 43.4 MB in the end (delta: 36.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 295.79 ms. Allocated memory is still 62.9 MB. Free memory was 40.9 MB in the beginning and 43.2 MB in the end (delta: -2.3 MB). Peak memory consumption was 12.3 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 06:24:08,128 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:24:08,130 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:24:08,156 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:24:08,156 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:24:08,157 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:24:08,157 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:24:08,159 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:24:08,160 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:24:08,160 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:24:08,161 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:24:08,161 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:24:08,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:24:08,162 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:24:08,163 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:24:08,164 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:24:08,164 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:24:08,165 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:24:08,166 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:24:08,167 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:24:08,168 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:24:08,170 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:24:08,171 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:24:08,171 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:24:08,173 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:24:08,173 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:24:08,173 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:24:08,174 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:24:08,174 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:24:08,175 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:24:08,175 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:24:08,175 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:24:08,175 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:24:08,176 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:24:08,177 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:24:08,177 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:24:08,177 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:24:08,177 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:24:08,177 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:24:08,178 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:24:08,178 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:24:08,184 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-08-27 06:24:08,206 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:24:08,206 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:24:08,207 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:24:08,207 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:24:08,208 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:24:08,209 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:24:08,209 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:24:08,209 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:24:08,209 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:24:08,209 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:24:08,210 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:24:08,210 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:24:08,210 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:24:08,210 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:24:08,210 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:24:08,210 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:24:08,210 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:24:08,210 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:24:08,210 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-27 06:24:08,210 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-27 06:24:08,210 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:24:08,210 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:24:08,211 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:24:08,211 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:24:08,211 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:24:08,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:24:08,211 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:24:08,211 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:24:08,211 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-27 06:24:08,211 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-27 06:24:08,211 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:24:08,211 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-27 06:24:08,212 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 098cac8041f427989b0fcb649de06793770da06a [2021-08-27 06:24:08,460 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:24:08,475 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:24:08,477 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:24:08,478 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:24:08,478 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:24:08,479 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test6_2.i [2021-08-27 06:24:08,524 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45384ec3b/3b0aa9787bbc4b4d9cc96d21add4d268/FLAGa3f4cf836 [2021-08-27 06:24:08,937 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:24:08,938 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test6_2.i [2021-08-27 06:24:08,953 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45384ec3b/3b0aa9787bbc4b4d9cc96d21add4d268/FLAGa3f4cf836 [2021-08-27 06:24:08,963 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45384ec3b/3b0aa9787bbc4b4d9cc96d21add4d268 [2021-08-27 06:24:08,964 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:24:08,965 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:24:08,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:24:08,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:24:08,968 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:24:08,969 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:24:08" (1/1) ... [2021-08-27 06:24:08,969 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72324c43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:24:08, skipping insertion in model container [2021-08-27 06:24:08,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:24:08" (1/1) ... [2021-08-27 06:24:08,980 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:24:09,012 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:24:09,265 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:24:09,282 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-08-27 06:24:09,293 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:24:09,345 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:24:09,352 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 06:24:09,406 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:24:09,441 INFO L208 MainTranslator]: Completed translation [2021-08-27 06:24:09,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:24:09 WrapperNode [2021-08-27 06:24:09,442 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:24:09,442 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 06:24:09,442 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 06:24:09,443 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 06:24:09,450 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:24:09" (1/1) ... [2021-08-27 06:24:09,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:24:09" (1/1) ... [2021-08-27 06:24:09,480 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:24:09" (1/1) ... [2021-08-27 06:24:09,482 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:24:09" (1/1) ... [2021-08-27 06:24:09,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:24:09" (1/1) ... [2021-08-27 06:24:09,528 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:24:09" (1/1) ... [2021-08-27 06:24:09,531 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:24:09" (1/1) ... [2021-08-27 06:24:09,547 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 06:24:09,552 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 06:24:09,552 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 06:24:09,552 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 06:24:09,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:24:09" (1/1) ... [2021-08-27 06:24:09,558 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:24:09,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 06:24:09,582 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 06:24:09,605 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 06:24:09,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-27 06:24:09,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 06:24:09,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:24:09,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:24:09,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-08-27 06:24:09,620 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-08-27 06:24:09,621 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-08-27 06:24:09,621 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-08-27 06:24:09,621 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-08-27 06:24:09,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-08-27 06:24:09,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-08-27 06:24:09,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-08-27 06:24:09,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-08-27 06:24:09,621 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:24:09,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-08-27 06:24:09,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-08-27 06:24:09,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-08-27 06:24:09,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-08-27 06:24:09,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-08-27 06:24:09,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-08-27 06:24:09,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-08-27 06:24:09,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-08-27 06:24:09,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-08-27 06:24:09,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-08-27 06:24:09,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-08-27 06:24:09,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-08-27 06:24:09,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-08-27 06:24:09,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-08-27 06:24:09,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-08-27 06:24:09,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-08-27 06:24:09,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-08-27 06:24:09,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-08-27 06:24:09,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-08-27 06:24:09,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-08-27 06:24:09,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-08-27 06:24:09,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-08-27 06:24:09,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-08-27 06:24:09,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-08-27 06:24:09,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-08-27 06:24:09,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-08-27 06:24:09,624 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-08-27 06:24:09,624 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-08-27 06:24:09,625 INFO L138 BoogieDeclarations]: Found implementation of procedure f6 [2021-08-27 06:24:09,625 INFO L138 BoogieDeclarations]: Found implementation of procedure g6 [2021-08-27 06:24:09,625 INFO L138 BoogieDeclarations]: Found implementation of procedure probe3_6 [2021-08-27 06:24:09,625 INFO L138 BoogieDeclarations]: Found implementation of procedure disconnect_6 [2021-08-27 06:24:09,626 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-08-27 06:24:09,626 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-27 06:24:09,626 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-08-27 06:24:09,626 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-08-27 06:24:09,626 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-08-27 06:24:09,626 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-08-27 06:24:09,627 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-08-27 06:24:09,627 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-08-27 06:24:09,627 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-08-27 06:24:09,627 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-08-27 06:24:09,627 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-08-27 06:24:09,627 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-08-27 06:24:09,627 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-08-27 06:24:09,628 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-08-27 06:24:09,628 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-08-27 06:24:09,628 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-08-27 06:24:09,629 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-08-27 06:24:09,629 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-08-27 06:24:09,629 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-08-27 06:24:09,629 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-08-27 06:24:09,629 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-08-27 06:24:09,629 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-08-27 06:24:09,630 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-08-27 06:24:09,630 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-08-27 06:24:09,630 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-08-27 06:24:09,630 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-08-27 06:24:09,630 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-08-27 06:24:09,631 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-08-27 06:24:09,631 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-08-27 06:24:09,631 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-08-27 06:24:09,631 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-08-27 06:24:09,631 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-08-27 06:24:09,631 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-08-27 06:24:09,632 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-08-27 06:24:09,632 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-08-27 06:24:09,632 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-08-27 06:24:09,632 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-08-27 06:24:09,632 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-08-27 06:24:09,632 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-08-27 06:24:09,632 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-08-27 06:24:09,632 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-08-27 06:24:09,632 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-08-27 06:24:09,633 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-08-27 06:24:09,633 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-08-27 06:24:09,633 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-08-27 06:24:09,633 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-08-27 06:24:09,633 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-08-27 06:24:09,633 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-08-27 06:24:09,633 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-08-27 06:24:09,633 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-08-27 06:24:09,633 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-08-27 06:24:09,633 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-08-27 06:24:09,634 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-08-27 06:24:09,634 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-08-27 06:24:09,634 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-08-27 06:24:09,634 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-08-27 06:24:09,634 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-08-27 06:24:09,634 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-08-27 06:24:09,634 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-08-27 06:24:09,635 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-08-27 06:24:09,635 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-08-27 06:24:09,635 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-08-27 06:24:09,635 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-08-27 06:24:09,635 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-08-27 06:24:09,635 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-08-27 06:24:09,635 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-08-27 06:24:09,635 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-08-27 06:24:09,635 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-08-27 06:24:09,636 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-27 06:24:09,636 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-08-27 06:24:09,636 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-08-27 06:24:09,636 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-08-27 06:24:09,636 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-08-27 06:24:09,636 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-08-27 06:24:09,636 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-08-27 06:24:09,636 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-08-27 06:24:09,637 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-08-27 06:24:09,637 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-08-27 06:24:09,639 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-08-27 06:24:09,639 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-08-27 06:24:09,639 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-08-27 06:24:09,639 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-08-27 06:24:09,641 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-08-27 06:24:09,641 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-08-27 06:24:09,641 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-08-27 06:24:09,641 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-08-27 06:24:09,642 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-08-27 06:24:09,646 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-08-27 06:24:09,646 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-08-27 06:24:09,646 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-08-27 06:24:09,646 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-08-27 06:24:09,646 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-08-27 06:24:09,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-08-27 06:24:09,646 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-08-27 06:24:09,646 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-08-27 06:24:09,646 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-08-27 06:24:09,646 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-08-27 06:24:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-08-27 06:24:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-08-27 06:24:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-08-27 06:24:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-08-27 06:24:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-08-27 06:24:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-08-27 06:24:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-08-27 06:24:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-08-27 06:24:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-08-27 06:24:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-08-27 06:24:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-08-27 06:24:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-08-27 06:24:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-08-27 06:24:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-08-27 06:24:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-08-27 06:24:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-08-27 06:24:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-27 06:24:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-08-27 06:24:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-08-27 06:24:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-08-27 06:24:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-08-27 06:24:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-08-27 06:24:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-27 06:24:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-08-27 06:24:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-08-27 06:24:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:24:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-27 06:24:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-08-27 06:24:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-08-27 06:24:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-08-27 06:24:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-27 06:24:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-08-27 06:24:09,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-08-27 06:24:09,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-08-27 06:24:09,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-08-27 06:24:09,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-08-27 06:24:09,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-08-27 06:24:09,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 06:24:09,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-08-27 06:24:09,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-08-27 06:24:09,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-08-27 06:24:09,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-08-27 06:24:09,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-08-27 06:24:09,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-27 06:24:09,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-27 06:24:09,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-08-27 06:24:09,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-08-27 06:24:09,651 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:24:09,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-08-27 06:24:09,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-08-27 06:24:09,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-08-27 06:24:09,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-08-27 06:24:09,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-08-27 06:24:09,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-08-27 06:24:09,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-08-27 06:24:09,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-08-27 06:24:09,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-08-27 06:24:09,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-08-27 06:24:09,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-08-27 06:24:09,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-08-27 06:24:09,652 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-08-27 06:24:09,652 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-08-27 06:24:09,652 INFO L130 BoogieDeclarations]: Found specification of procedure f6 [2021-08-27 06:24:09,652 INFO L130 BoogieDeclarations]: Found specification of procedure g6 [2021-08-27 06:24:09,653 INFO L130 BoogieDeclarations]: Found specification of procedure probe3_6 [2021-08-27 06:24:09,653 INFO L130 BoogieDeclarations]: Found specification of procedure disconnect_6 [2021-08-27 06:24:09,653 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-08-27 06:24:09,653 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-27 06:24:09,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-27 06:24:09,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 06:24:09,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-08-27 06:24:09,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 06:24:09,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:24:09,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-08-27 06:24:09,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-08-27 06:24:09,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-08-27 06:24:09,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-08-27 06:24:10,287 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:24:10,601 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:24:11,003 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 06:24:11,003 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-08-27 06:24:11,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:24:11 BoogieIcfgContainer [2021-08-27 06:24:11,006 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 06:24:11,007 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-27 06:24:11,007 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-27 06:24:11,009 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-27 06:24:11,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 06:24:08" (1/3) ... [2021-08-27 06:24:11,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cd9098d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:24:11, skipping insertion in model container [2021-08-27 06:24:11,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:24:09" (2/3) ... [2021-08-27 06:24:11,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cd9098d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:24:11, skipping insertion in model container [2021-08-27 06:24:11,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:24:11" (3/3) ... [2021-08-27 06:24:11,011 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test6_2.i [2021-08-27 06:24:11,015 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-27 06:24:11,015 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 86 error locations. [2021-08-27 06:24:11,049 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-27 06:24:11,053 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 06:24:11,053 INFO L340 AbstractCegarLoop]: Starting to check reachability of 86 error locations. [2021-08-27 06:24:11,068 INFO L276 IsEmpty]: Start isEmpty. Operand has 139 states, 76 states have (on average 1.5657894736842106) internal successors, (119), 110 states have internal predecessors, (119), 15 states have call successors, (15), 14 states have call predecessors, (15), 14 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-08-27 06:24:11,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-08-27 06:24:11,081 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:24:11,081 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] [2021-08-27 06:24:11,082 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 82 more)] === [2021-08-27 06:24:11,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:24:11,085 INFO L82 PathProgramCache]: Analyzing trace with hash -2083337596, now seen corresponding path program 1 times [2021-08-27 06:24:11,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:24:11,093 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [743251144] [2021-08-27 06:24:11,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:24:11,094 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:24:11,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:24:11,108 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 06:24:11,111 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 06:24:11,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:24:11,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:24:11,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:24:11,409 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 06:24:11,409 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:24:11,537 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 06:24:11,538 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:24:11,538 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [743251144] [2021-08-27 06:24:11,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [743251144] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:24:11,539 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:24:11,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-27 06:24:11,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519208688] [2021-08-27 06:24:11,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:24:11,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:24:11,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:24:11,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:24:11,559 INFO L87 Difference]: Start difference. First operand has 139 states, 76 states have (on average 1.5657894736842106) internal successors, (119), 110 states have internal predecessors, (119), 15 states have call successors, (15), 14 states have call predecessors, (15), 14 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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 06:24:11,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:24:11,633 INFO L93 Difference]: Finished difference Result 94 states and 104 transitions. [2021-08-27 06:24:11,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:24:11,634 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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 20 [2021-08-27 06:24:11,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:24:11,641 INFO L225 Difference]: With dead ends: 94 [2021-08-27 06:24:11,642 INFO L226 Difference]: Without dead ends: 91 [2021-08-27 06:24:11,643 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.9ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:24:11,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-08-27 06:24:11,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 70. [2021-08-27 06:24:11,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 38 states have (on average 1.5263157894736843) internal successors, (58), 54 states have internal predecessors, (58), 8 states have call successors, (8), 8 states have call predecessors, (8), 8 states have return successors, (8), 8 states have call predecessors, (8), 7 states have call successors, (8) [2021-08-27 06:24:11,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 74 transitions. [2021-08-27 06:24:11,672 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 74 transitions. Word has length 20 [2021-08-27 06:24:11,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:24:11,672 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 74 transitions. [2021-08-27 06:24:11,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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 06:24:11,672 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 74 transitions. [2021-08-27 06:24:11,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-08-27 06:24:11,673 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:24:11,673 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] [2021-08-27 06:24:11,680 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-08-27 06:24:11,879 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 06:24:11,880 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 82 more)] === [2021-08-27 06:24:11,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:24:11,880 INFO L82 PathProgramCache]: Analyzing trace with hash 2015116195, now seen corresponding path program 1 times [2021-08-27 06:24:11,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:24:11,881 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [698434573] [2021-08-27 06:24:11,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:24:11,881 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:24:11,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:24:11,882 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 06:24:11,890 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 06:24:12,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:24:12,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-27 06:24:12,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:24:12,116 INFO L354 Elim1Store]: treesize reduction 34, result has 38.2 percent of original size [2021-08-27 06:24:12,117 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 26 [2021-08-27 06:24:12,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-08-27 06:24:12,296 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 06:24:12,296 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:24:12,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-08-27 06:24:12,495 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 06:24:12,495 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:24:12,495 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [698434573] [2021-08-27 06:24:12,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [698434573] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:24:12,495 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:24:12,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-08-27 06:24:12,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53457619] [2021-08-27 06:24:12,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:24:12,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:24:12,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:24:12,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:24:12,497 INFO L87 Difference]: Start difference. First operand 70 states and 74 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2021-08-27 06:24:12,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:24:12,625 INFO L93 Difference]: Finished difference Result 111 states and 120 transitions. [2021-08-27 06:24:12,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:24:12,626 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 20 [2021-08-27 06:24:12,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:24:12,629 INFO L225 Difference]: With dead ends: 111 [2021-08-27 06:24:12,629 INFO L226 Difference]: Without dead ends: 108 [2021-08-27 06:24:12,630 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 6 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 34.9ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-08-27 06:24:12,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-08-27 06:24:12,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 75. [2021-08-27 06:24:12,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 42 states have (on average 1.5) internal successors, (63), 58 states have internal predecessors, (63), 8 states have call successors, (8), 8 states have call predecessors, (8), 9 states have return successors, (9), 9 states have call predecessors, (9), 7 states have call successors, (9) [2021-08-27 06:24:12,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 80 transitions. [2021-08-27 06:24:12,646 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 80 transitions. Word has length 20 [2021-08-27 06:24:12,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:24:12,646 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 80 transitions. [2021-08-27 06:24:12,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2021-08-27 06:24:12,647 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 80 transitions. [2021-08-27 06:24:12,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-08-27 06:24:12,648 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:24:12,648 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] [2021-08-27 06:24:12,657 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 06:24:12,857 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 06:24:12,857 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting entry_pointErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 82 more)] === [2021-08-27 06:24:12,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:24:12,858 INFO L82 PathProgramCache]: Analyzing trace with hash 2015116196, now seen corresponding path program 1 times [2021-08-27 06:24:12,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:24:12,858 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [141188677] [2021-08-27 06:24:12,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:24:12,858 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:24:12,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:24:12,865 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 06:24:12,866 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 06:24:13,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:24:13,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-27 06:24:13,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:24:13,062 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-08-27 06:24:13,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-08-27 06:24:13,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-08-27 06:24:13,221 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 06:24:13,222 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:24:13,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-08-27 06:24:13,582 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 06:24:13,582 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:24:13,582 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [141188677] [2021-08-27 06:24:13,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [141188677] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:24:13,582 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:24:13,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-08-27 06:24:13,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688854630] [2021-08-27 06:24:13,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-27 06:24:13,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:24:13,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 06:24:13,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-08-27 06:24:13,583 INFO L87 Difference]: Start difference. First operand 75 states and 80 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 5 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2021-08-27 06:24:13,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:24:13,748 INFO L93 Difference]: Finished difference Result 125 states and 131 transitions. [2021-08-27 06:24:13,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 06:24:13,749 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 5 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 20 [2021-08-27 06:24:13,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:24:13,750 INFO L225 Difference]: With dead ends: 125 [2021-08-27 06:24:13,750 INFO L226 Difference]: Without dead ends: 124 [2021-08-27 06:24:13,750 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 52.0ms TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-08-27 06:24:13,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2021-08-27 06:24:13,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 106. [2021-08-27 06:24:13,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 66 states have (on average 1.5606060606060606) internal successors, (103), 83 states have internal predecessors, (103), 11 states have call successors, (11), 11 states have call predecessors, (11), 13 states have return successors, (13), 13 states have call predecessors, (13), 10 states have call successors, (13) [2021-08-27 06:24:13,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 127 transitions. [2021-08-27 06:24:13,754 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 127 transitions. Word has length 20 [2021-08-27 06:24:13,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:24:13,755 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 127 transitions. [2021-08-27 06:24:13,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 5 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2021-08-27 06:24:13,755 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 127 transitions. [2021-08-27 06:24:13,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-27 06:24:13,755 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:24:13,755 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] [2021-08-27 06:24:13,764 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 06:24:13,956 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 06:24:13,956 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting probe3_6Err5ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 82 more)] === [2021-08-27 06:24:13,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:24:13,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1702507591, now seen corresponding path program 1 times [2021-08-27 06:24:13,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:24:13,957 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [57168070] [2021-08-27 06:24:13,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:24:13,957 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:24:13,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:24:13,958 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 06:24:13,960 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 06:24:14,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:24:14,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:24:14,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:24:14,235 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 06:24:14,235 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:24:14,298 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 06:24:14,299 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:24:14,300 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [57168070] [2021-08-27 06:24:14,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [57168070] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:24:14,301 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:24:14,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-08-27 06:24:14,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014454094] [2021-08-27 06:24:14,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:24:14,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:24:14,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:24:14,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:24:14,302 INFO L87 Difference]: Start difference. First operand 106 states and 127 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-27 06:24:14,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:24:14,319 INFO L93 Difference]: Finished difference Result 104 states and 123 transitions. [2021-08-27 06:24:14,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:24:14,319 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2021-08-27 06:24:14,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:24:14,320 INFO L225 Difference]: With dead ends: 104 [2021-08-27 06:24:14,320 INFO L226 Difference]: Without dead ends: 104 [2021-08-27 06:24:14,320 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.6ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:24:14,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-08-27 06:24:14,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2021-08-27 06:24:14,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 66 states have (on average 1.5) internal successors, (99), 81 states have internal predecessors, (99), 11 states have call successors, (11), 11 states have call predecessors, (11), 13 states have return successors, (13), 13 states have call predecessors, (13), 10 states have call successors, (13) [2021-08-27 06:24:14,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 123 transitions. [2021-08-27 06:24:14,324 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 123 transitions. Word has length 22 [2021-08-27 06:24:14,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:24:14,325 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 123 transitions. [2021-08-27 06:24:14,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-27 06:24:14,325 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 123 transitions. [2021-08-27 06:24:14,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-27 06:24:14,325 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:24:14,325 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] [2021-08-27 06:24:14,333 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 06:24:14,532 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 06:24:14,533 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting disconnect_6Err0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 82 more)] === [2021-08-27 06:24:14,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:24:14,533 INFO L82 PathProgramCache]: Analyzing trace with hash -503576158, now seen corresponding path program 1 times [2021-08-27 06:24:14,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:24:14,534 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [71936825] [2021-08-27 06:24:14,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:24:14,534 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:24:14,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:24:14,535 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 06:24:14,536 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 06:24:14,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:24:14,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 06:24:14,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:24:14,820 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 06:24:14,820 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:24:14,941 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 06:24:14,941 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:24:14,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [71936825] [2021-08-27 06:24:14,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [71936825] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:24:14,941 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:24:14,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-08-27 06:24:14,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284917593] [2021-08-27 06:24:14,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 06:24:14,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:24:14,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 06:24:14,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-08-27 06:24:14,942 INFO L87 Difference]: Start difference. First operand 104 states and 123 transitions. Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 8 states have internal predecessors, (19), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-08-27 06:24:14,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:24:14,999 INFO L93 Difference]: Finished difference Result 118 states and 137 transitions. [2021-08-27 06:24:15,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-27 06:24:15,000 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 8 states have internal predecessors, (19), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 22 [2021-08-27 06:24:15,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:24:15,001 INFO L225 Difference]: With dead ends: 118 [2021-08-27 06:24:15,001 INFO L226 Difference]: Without dead ends: 114 [2021-08-27 06:24:15,001 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 57.4ms TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-08-27 06:24:15,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-08-27 06:24:15,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 108. [2021-08-27 06:24:15,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 69 states have (on average 1.463768115942029) internal successors, (101), 84 states have internal predecessors, (101), 11 states have call successors, (11), 11 states have call predecessors, (11), 14 states have return successors, (14), 14 states have call predecessors, (14), 10 states have call successors, (14) [2021-08-27 06:24:15,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 126 transitions. [2021-08-27 06:24:15,005 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 126 transitions. Word has length 22 [2021-08-27 06:24:15,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:24:15,005 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 126 transitions. [2021-08-27 06:24:15,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 8 states have internal predecessors, (19), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-08-27 06:24:15,005 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 126 transitions. [2021-08-27 06:24:15,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-27 06:24:15,006 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:24:15,006 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] [2021-08-27 06:24:15,016 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 06:24:15,212 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 06:24:15,212 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting probe3_6Err6ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 82 more)] === [2021-08-27 06:24:15,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:24:15,213 INFO L82 PathProgramCache]: Analyzing trace with hash -1238127481, now seen corresponding path program 1 times [2021-08-27 06:24:15,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:24:15,213 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [511843221] [2021-08-27 06:24:15,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:24:15,213 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:24:15,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:24:15,214 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 06:24:15,215 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 06:24:15,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:24:15,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 06:24:15,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:24:15,632 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 06:24:15,632 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:24:15,743 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 06:24:15,743 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:24:15,743 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [511843221] [2021-08-27 06:24:15,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [511843221] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:24:15,746 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:24:15,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 4] imperfect sequences [] total 9 [2021-08-27 06:24:15,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630033921] [2021-08-27 06:24:15,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 06:24:15,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:24:15,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 06:24:15,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-08-27 06:24:15,747 INFO L87 Difference]: Start difference. First operand 108 states and 126 transitions. Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 8 states have internal predecessors, (28), 4 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-08-27 06:24:15,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:24:15,936 INFO L93 Difference]: Finished difference Result 118 states and 125 transitions. [2021-08-27 06:24:15,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-27 06:24:15,937 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 8 states have internal predecessors, (28), 4 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 23 [2021-08-27 06:24:15,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:24:15,937 INFO L225 Difference]: With dead ends: 118 [2021-08-27 06:24:15,937 INFO L226 Difference]: Without dead ends: 118 [2021-08-27 06:24:15,938 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 77.5ms TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-08-27 06:24:15,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-08-27 06:24:15,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 106. [2021-08-27 06:24:15,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 69 states have (on average 1.4057971014492754) internal successors, (97), 82 states have internal predecessors, (97), 11 states have call successors, (11), 11 states have call predecessors, (11), 14 states have return successors, (14), 14 states have call predecessors, (14), 10 states have call successors, (14) [2021-08-27 06:24:15,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 122 transitions. [2021-08-27 06:24:15,945 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 122 transitions. Word has length 23 [2021-08-27 06:24:15,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:24:15,945 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 122 transitions. [2021-08-27 06:24:15,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 8 states have internal predecessors, (28), 4 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-08-27 06:24:15,946 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 122 transitions. [2021-08-27 06:24:15,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-27 06:24:15,947 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:24:15,947 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] [2021-08-27 06:24:15,956 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 06:24:16,154 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 06:24:16,154 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting probe3_6Err7ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 82 more)] === [2021-08-27 06:24:16,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:24:16,155 INFO L82 PathProgramCache]: Analyzing trace with hash 272754043, now seen corresponding path program 1 times [2021-08-27 06:24:16,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:24:16,155 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1064951083] [2021-08-27 06:24:16,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:24:16,155 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:24:16,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:24:16,156 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 06:24:16,158 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 06:24:16,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:24:16,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:24:16,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:24:16,401 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 06:24:16,491 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 06:24:16,492 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:24:16,576 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 06:24:16,576 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:24:16,576 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1064951083] [2021-08-27 06:24:16,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1064951083] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:24:16,576 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:24:16,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 5 [2021-08-27 06:24:16,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622449780] [2021-08-27 06:24:16,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-27 06:24:16,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:24:16,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 06:24:16,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-27 06:24:16,577 INFO L87 Difference]: Start difference. First operand 106 states and 122 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 06:24:16,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:24:16,685 INFO L93 Difference]: Finished difference Result 108 states and 120 transitions. [2021-08-27 06:24:16,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 06:24:16,686 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 24 [2021-08-27 06:24:16,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:24:16,687 INFO L225 Difference]: With dead ends: 108 [2021-08-27 06:24:16,687 INFO L226 Difference]: Without dead ends: 108 [2021-08-27 06:24:16,687 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 4 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 34.7ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-27 06:24:16,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-08-27 06:24:16,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 106. [2021-08-27 06:24:16,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 69 states have (on average 1.3768115942028984) internal successors, (95), 82 states have internal predecessors, (95), 11 states have call successors, (11), 11 states have call predecessors, (11), 14 states have return successors, (14), 14 states have call predecessors, (14), 10 states have call successors, (14) [2021-08-27 06:24:16,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 120 transitions. [2021-08-27 06:24:16,690 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 120 transitions. Word has length 24 [2021-08-27 06:24:16,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:24:16,691 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 120 transitions. [2021-08-27 06:24:16,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 06:24:16,691 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 120 transitions. [2021-08-27 06:24:16,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-27 06:24:16,692 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:24:16,692 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] [2021-08-27 06:24:16,702 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 06:24:16,892 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 06:24:16,892 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting probe3_6Err7ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 82 more)] === [2021-08-27 06:24:16,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:24:16,893 INFO L82 PathProgramCache]: Analyzing trace with hash -232804582, now seen corresponding path program 1 times [2021-08-27 06:24:16,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:24:16,893 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1466219673] [2021-08-27 06:24:16,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:24:16,893 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:24:16,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:24:16,894 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 06:24:16,895 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 06:24:17,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:24:17,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 06:24:17,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:24:17,207 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 06:24:17,207 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:24:17,321 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 06:24:17,322 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:24:17,322 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1466219673] [2021-08-27 06:24:17,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1466219673] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:24:17,322 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:24:17,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-27 06:24:17,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299019153] [2021-08-27 06:24:17,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:24:17,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:24:17,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:24:17,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:24:17,323 INFO L87 Difference]: Start difference. First operand 106 states and 120 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 06:24:17,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:24:17,342 INFO L93 Difference]: Finished difference Result 68 states and 70 transitions. [2021-08-27 06:24:17,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:24:17,343 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 24 [2021-08-27 06:24:17,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:24:17,343 INFO L225 Difference]: With dead ends: 68 [2021-08-27 06:24:17,343 INFO L226 Difference]: Without dead ends: 64 [2021-08-27 06:24:17,343 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.9ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:24:17,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-08-27 06:24:17,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2021-08-27 06:24:17,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 38 states have (on average 1.3157894736842106) internal successors, (50), 48 states have internal predecessors, (50), 8 states have call successors, (8), 8 states have call predecessors, (8), 8 states have return successors, (8), 8 states have call predecessors, (8), 7 states have call successors, (8) [2021-08-27 06:24:17,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 66 transitions. [2021-08-27 06:24:17,345 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 66 transitions. Word has length 24 [2021-08-27 06:24:17,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:24:17,345 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 66 transitions. [2021-08-27 06:24:17,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 06:24:17,346 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 66 transitions. [2021-08-27 06:24:17,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-08-27 06:24:17,346 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:24:17,346 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] [2021-08-27 06:24:17,360 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 06:24:17,557 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 06:24:17,558 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting probe3_6Err0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 82 more)] === [2021-08-27 06:24:17,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:24:17,558 INFO L82 PathProgramCache]: Analyzing trace with hash 1514319562, now seen corresponding path program 1 times [2021-08-27 06:24:17,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:24:17,558 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1231762312] [2021-08-27 06:24:17,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:24:17,558 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:24:17,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:24:17,560 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 06:24:17,561 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 06:24:17,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:24:17,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 13 conjunts are in the unsatisfiable core [2021-08-27 06:24:17,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:24:17,826 INFO L354 Elim1Store]: treesize reduction 34, result has 38.2 percent of original size [2021-08-27 06:24:17,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 26 [2021-08-27 06:24:17,946 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-08-27 06:24:17,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 22 [2021-08-27 06:24:18,050 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 06:24:18,050 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:24:18,253 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 06:24:18,253 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:24:18,253 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1231762312] [2021-08-27 06:24:18,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1231762312] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:24:18,253 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:24:18,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 5] imperfect sequences [] total 8 [2021-08-27 06:24:18,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029603378] [2021-08-27 06:24:18,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-27 06:24:18,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:24:18,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-27 06:24:18,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-08-27 06:24:18,254 INFO L87 Difference]: Start difference. First operand 64 states and 66 transitions. Second operand has 9 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 3 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-08-27 06:24:18,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:24:18,530 INFO L93 Difference]: Finished difference Result 63 states and 65 transitions. [2021-08-27 06:24:18,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-27 06:24:18,530 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 3 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 28 [2021-08-27 06:24:18,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:24:18,531 INFO L225 Difference]: With dead ends: 63 [2021-08-27 06:24:18,531 INFO L226 Difference]: Without dead ends: 63 [2021-08-27 06:24:18,531 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 37 SyntacticMatches, 12 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 193.3ms TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2021-08-27 06:24:18,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-08-27 06:24:18,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2021-08-27 06:24:18,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 38 states have (on average 1.2894736842105263) internal successors, (49), 47 states have internal predecessors, (49), 8 states have call successors, (8), 8 states have call predecessors, (8), 8 states have return successors, (8), 8 states have call predecessors, (8), 7 states have call successors, (8) [2021-08-27 06:24:18,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 65 transitions. [2021-08-27 06:24:18,536 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 65 transitions. Word has length 28 [2021-08-27 06:24:18,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:24:18,536 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 65 transitions. [2021-08-27 06:24:18,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 3 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-08-27 06:24:18,541 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 65 transitions. [2021-08-27 06:24:18,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-08-27 06:24:18,542 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:24:18,542 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] [2021-08-27 06:24:18,549 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-08-27 06:24:18,746 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 06:24:18,747 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting probe3_6Err1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 82 more)] === [2021-08-27 06:24:18,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:24:18,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1514319563, now seen corresponding path program 1 times [2021-08-27 06:24:18,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:24:18,748 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [115749928] [2021-08-27 06:24:18,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:24:18,748 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:24:18,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:24:18,748 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 06:24:18,749 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 06:24:18,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:24:19,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 18 conjunts are in the unsatisfiable core [2021-08-27 06:24:19,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:24:19,026 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-08-27 06:24:19,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-08-27 06:24:23,208 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-27 06:24:23,209 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2021-08-27 06:24:23,356 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 06:24:23,357 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:24:24,570 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 06:24:24,570 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:24:24,572 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [115749928] [2021-08-27 06:24:24,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [115749928] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:24:24,572 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:24:24,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 14 [2021-08-27 06:24:24,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344777146] [2021-08-27 06:24:24,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-27 06:24:24,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:24:24,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-27 06:24:24,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=167, Unknown=2, NotChecked=0, Total=210 [2021-08-27 06:24:24,573 INFO L87 Difference]: Start difference. First operand 63 states and 65 transitions. Second operand has 15 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 12 states have internal predecessors, (34), 6 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2021-08-27 06:24:32,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:24:32,916 INFO L93 Difference]: Finished difference Result 61 states and 63 transitions. [2021-08-27 06:24:32,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 06:24:32,917 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 12 states have internal predecessors, (34), 6 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 28 [2021-08-27 06:24:32,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:24:32,917 INFO L225 Difference]: With dead ends: 61 [2021-08-27 06:24:32,917 INFO L226 Difference]: Without dead ends: 61 [2021-08-27 06:24:32,918 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 38 SyntacticMatches, 5 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 5400.0ms TimeCoverageRelationStatistics Valid=123, Invalid=381, Unknown=2, NotChecked=0, Total=506 [2021-08-27 06:24:32,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-08-27 06:24:32,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2021-08-27 06:24:32,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 38 states have (on average 1.236842105263158) internal successors, (47), 45 states have internal predecessors, (47), 8 states have call successors, (8), 8 states have call predecessors, (8), 8 states have return successors, (8), 8 states have call predecessors, (8), 7 states have call successors, (8) [2021-08-27 06:24:32,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 63 transitions. [2021-08-27 06:24:32,919 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 63 transitions. Word has length 28 [2021-08-27 06:24:32,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:24:32,920 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 63 transitions. [2021-08-27 06:24:32,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 12 states have internal predecessors, (34), 6 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2021-08-27 06:24:32,920 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 63 transitions. [2021-08-27 06:24:32,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-08-27 06:24:32,921 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:24:32,921 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] [2021-08-27 06:24:32,935 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-08-27 06:24:33,121 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 06:24:33,122 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 82 more)] === [2021-08-27 06:24:33,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:24:33,122 INFO L82 PathProgramCache]: Analyzing trace with hash -1727877462, now seen corresponding path program 1 times [2021-08-27 06:24:33,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:24:33,122 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [459572947] [2021-08-27 06:24:33,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:24:33,123 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:24:33,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:24:33,123 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 06:24:33,124 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 06:24:33,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:24:33,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 15 conjunts are in the unsatisfiable core [2021-08-27 06:24:33,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:24:33,441 INFO L354 Elim1Store]: treesize reduction 34, result has 38.2 percent of original size [2021-08-27 06:24:33,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 26 [2021-08-27 06:24:33,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-08-27 06:24:33,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 17 [2021-08-27 06:24:33,725 INFO L354 Elim1Store]: treesize reduction 20, result has 28.6 percent of original size [2021-08-27 06:24:33,725 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 31 [2021-08-27 06:24:33,764 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 06:24:33,764 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:24:34,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2021-08-27 06:24:34,147 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 06:24:34,147 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:24:34,148 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [459572947] [2021-08-27 06:24:34,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [459572947] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:24:34,148 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:24:34,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 6] imperfect sequences [] total 13 [2021-08-27 06:24:34,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178210468] [2021-08-27 06:24:34,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-08-27 06:24:34,148 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:24:34,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-08-27 06:24:34,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2021-08-27 06:24:34,149 INFO L87 Difference]: Start difference. First operand 61 states and 63 transitions. Second operand has 14 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 6 states have call successors, (9), 5 states have call predecessors, (9), 7 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2021-08-27 06:24:58,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:24:58,590 INFO L93 Difference]: Finished difference Result 65 states and 66 transitions. [2021-08-27 06:24:58,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-27 06:24:58,591 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 6 states have call successors, (9), 5 states have call predecessors, (9), 7 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 29 [2021-08-27 06:24:58,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:24:58,591 INFO L225 Difference]: With dead ends: 65 [2021-08-27 06:24:58,591 INFO L226 Difference]: Without dead ends: 54 [2021-08-27 06:24:58,592 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 38 SyntacticMatches, 8 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 4273.7ms TimeCoverageRelationStatistics Valid=74, Invalid=231, Unknown=1, NotChecked=0, Total=306 [2021-08-27 06:24:58,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-08-27 06:24:58,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-08-27 06:24:58,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 32 states have (on average 1.1875) internal successors, (38), 38 states have internal predecessors, (38), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-08-27 06:24:58,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 53 transitions. [2021-08-27 06:24:58,593 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 53 transitions. Word has length 29 [2021-08-27 06:24:58,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:24:58,594 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 53 transitions. [2021-08-27 06:24:58,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 6 states have call successors, (9), 5 states have call predecessors, (9), 7 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2021-08-27 06:24:58,594 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 53 transitions. [2021-08-27 06:24:58,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-08-27 06:24:58,595 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:24:58,595 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, 1, 1, 1, 1, 1, 1] [2021-08-27 06:24:58,602 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 06:24:58,800 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 06:24:58,801 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting disconnect_6Err0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 82 more)] === [2021-08-27 06:24:58,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:24:58,801 INFO L82 PathProgramCache]: Analyzing trace with hash 764373490, now seen corresponding path program 1 times [2021-08-27 06:24:58,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:24:58,801 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1108310672] [2021-08-27 06:24:58,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:24:58,802 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:24:58,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:24:58,802 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 06:24:58,803 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 06:24:59,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:24:59,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 22 conjunts are in the unsatisfiable core [2021-08-27 06:24:59,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:24:59,165 INFO L354 Elim1Store]: treesize reduction 34, result has 38.2 percent of original size [2021-08-27 06:24:59,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 26 [2021-08-27 06:24:59,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-08-27 06:24:59,367 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 17 [2021-08-27 06:24:59,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 17 [2021-08-27 06:25:03,685 INFO L354 Elim1Store]: treesize reduction 20, result has 28.6 percent of original size [2021-08-27 06:25:03,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 47 [2021-08-27 06:25:03,798 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 06:25:03,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:25:04,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2021-08-27 06:25:04,659 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 06:25:04,659 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:25:04,659 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1108310672] [2021-08-27 06:25:04,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1108310672] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:25:04,659 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:25:04,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 10] imperfect sequences [] total 21 [2021-08-27 06:25:04,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450706466] [2021-08-27 06:25:04,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-08-27 06:25:04,660 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:25:04,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-08-27 06:25:04,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=377, Unknown=2, NotChecked=0, Total=462 [2021-08-27 06:25:04,660 INFO L87 Difference]: Start difference. First operand 54 states and 53 transitions. Second operand has 22 states, 20 states have (on average 2.4) internal successors, (48), 18 states have internal predecessors, (48), 7 states have call successors, (13), 8 states have call predecessors, (13), 7 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2021-08-27 06:26:03,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:26:03,639 INFO L93 Difference]: Finished difference Result 53 states and 52 transitions. [2021-08-27 06:26:03,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-27 06:26:03,640 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 2.4) internal successors, (48), 18 states have internal predecessors, (48), 7 states have call successors, (13), 8 states have call predecessors, (13), 7 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) Word has length 38 [2021-08-27 06:26:03,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:26:03,640 INFO L225 Difference]: With dead ends: 53 [2021-08-27 06:26:03,640 INFO L226 Difference]: Without dead ends: 53 [2021-08-27 06:26:03,641 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 46 SyntacticMatches, 9 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 12922.3ms TimeCoverageRelationStatistics Valid=175, Invalid=749, Unknown=6, NotChecked=0, Total=930 [2021-08-27 06:26:03,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-08-27 06:26:03,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-08-27 06:26:03,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 32 states have (on average 1.15625) internal successors, (37), 37 states have internal predecessors, (37), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-08-27 06:26:03,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 52 transitions. [2021-08-27 06:26:03,642 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 52 transitions. Word has length 38 [2021-08-27 06:26:03,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:26:03,643 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 52 transitions. [2021-08-27 06:26:03,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 2.4) internal successors, (48), 18 states have internal predecessors, (48), 7 states have call successors, (13), 8 states have call predecessors, (13), 7 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2021-08-27 06:26:03,643 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 52 transitions. [2021-08-27 06:26:03,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-08-27 06:26:03,644 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:26:03,644 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, 1, 1, 1, 1, 1, 1] [2021-08-27 06:26:03,658 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 06:26:03,851 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 06:26:03,851 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting disconnect_6Err1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 82 more)] === [2021-08-27 06:26:03,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:26:03,851 INFO L82 PathProgramCache]: Analyzing trace with hash 764373491, now seen corresponding path program 1 times [2021-08-27 06:26:03,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:26:03,852 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [391778940] [2021-08-27 06:26:03,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:26:03,852 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:26:03,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:26:03,853 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 06:26:03,853 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 06:26:04,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:26:04,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-27 06:26:04,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:26:04,533 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 06:26:04,533 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:26:04,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-08-27 06:26:05,014 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:26:05,014 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2021-08-27 06:26:05,383 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 06:26:05,383 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:26:05,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [391778940] [2021-08-27 06:26:05,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [391778940] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:26:05,384 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:26:05,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-08-27 06:26:05,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509652919] [2021-08-27 06:26:05,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-08-27 06:26:05,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:26:05,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-08-27 06:26:05,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-08-27 06:26:05,386 INFO L87 Difference]: Start difference. First operand 53 states and 52 transitions. Second operand has 14 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 12 states have internal predecessors, (50), 7 states have call successors, (15), 5 states have call predecessors, (15), 5 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) [2021-08-27 06:26:05,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:26:05,735 INFO L93 Difference]: Finished difference Result 52 states and 51 transitions. [2021-08-27 06:26:05,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-27 06:26:05,736 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 12 states have internal predecessors, (50), 7 states have call successors, (15), 5 states have call predecessors, (15), 5 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) Word has length 38 [2021-08-27 06:26:05,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:26:05,736 INFO L225 Difference]: With dead ends: 52 [2021-08-27 06:26:05,736 INFO L226 Difference]: Without dead ends: 52 [2021-08-27 06:26:05,737 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 386.2ms TimeCoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2021-08-27 06:26:05,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-08-27 06:26:05,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-08-27 06:26:05,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 32 states have (on average 1.125) internal successors, (36), 36 states have internal predecessors, (36), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-08-27 06:26:05,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 51 transitions. [2021-08-27 06:26:05,738 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 51 transitions. Word has length 38 [2021-08-27 06:26:05,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:26:05,738 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 51 transitions. [2021-08-27 06:26:05,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 12 states have internal predecessors, (50), 7 states have call successors, (15), 5 states have call predecessors, (15), 5 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) [2021-08-27 06:26:05,739 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 51 transitions. [2021-08-27 06:26:05,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-08-27 06:26:05,739 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:26:05,739 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, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:26:05,747 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 06:26:05,946 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 06:26:05,946 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 82 more)] === [2021-08-27 06:26:05,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:26:05,947 INFO L82 PathProgramCache]: Analyzing trace with hash -2074225181, now seen corresponding path program 1 times [2021-08-27 06:26:05,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:26:05,947 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [894417670] [2021-08-27 06:26:05,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:26:05,947 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:26:05,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:26:05,948 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 06:26:05,949 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 06:26:06,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:26:06,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 14 conjunts are in the unsatisfiable core [2021-08-27 06:26:06,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:26:06,540 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 11 treesize of output 7 [2021-08-27 06:26:06,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-08-27 06:26:06,623 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 06:26:06,623 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:26:06,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2021-08-27 06:26:06,903 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 06:26:06,903 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:26:06,903 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [894417670] [2021-08-27 06:26:06,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [894417670] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:26:06,904 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:26:06,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 10 [2021-08-27 06:26:06,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784123259] [2021-08-27 06:26:06,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-27 06:26:06,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:26:06,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-27 06:26:06,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-08-27 06:26:06,905 INFO L87 Difference]: Start difference. First operand 52 states and 51 transitions. Second operand has 11 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 4 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2021-08-27 06:26:07,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:26:07,216 INFO L93 Difference]: Finished difference Result 51 states and 50 transitions. [2021-08-27 06:26:07,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-27 06:26:07,217 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 4 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 39 [2021-08-27 06:26:07,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:26:07,217 INFO L225 Difference]: With dead ends: 51 [2021-08-27 06:26:07,217 INFO L226 Difference]: Without dead ends: 51 [2021-08-27 06:26:07,218 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 207.4ms TimeCoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2021-08-27 06:26:07,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-08-27 06:26:07,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-08-27 06:26:07,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 32 states have (on average 1.09375) internal successors, (35), 35 states have internal predecessors, (35), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-08-27 06:26:07,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 50 transitions. [2021-08-27 06:26:07,219 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 50 transitions. Word has length 39 [2021-08-27 06:26:07,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:26:07,220 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 50 transitions. [2021-08-27 06:26:07,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 4 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2021-08-27 06:26:07,220 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 50 transitions. [2021-08-27 06:26:07,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-08-27 06:26:07,220 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:26:07,221 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:26:07,234 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 06:26:07,429 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 06:26:07,429 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 82 more)] === [2021-08-27 06:26:07,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:26:07,429 INFO L82 PathProgramCache]: Analyzing trace with hash 123529298, now seen corresponding path program 1 times [2021-08-27 06:26:07,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:26:07,430 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1348397438] [2021-08-27 06:26:07,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:26:07,430 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:26:07,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:26:07,431 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 06:26:07,432 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 06:26:07,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:26:07,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 17 conjunts are in the unsatisfiable core [2021-08-27 06:26:07,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:26:08,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-08-27 06:26:08,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2021-08-27 06:26:08,586 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 06:26:08,587 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:26:08,912 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2021-08-27 06:26:09,290 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 06:26:09,290 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:26:09,290 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1348397438] [2021-08-27 06:26:09,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1348397438] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:26:09,290 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:26:09,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 11] imperfect sequences [] total 23 [2021-08-27 06:26:09,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136698135] [2021-08-27 06:26:09,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-08-27 06:26:09,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:26:09,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-08-27 06:26:09,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=451, Unknown=0, NotChecked=0, Total=552 [2021-08-27 06:26:09,292 INFO L87 Difference]: Start difference. First operand 51 states and 50 transitions. Second operand has 24 states, 21 states have (on average 2.5714285714285716) internal successors, (54), 20 states have internal predecessors, (54), 8 states have call successors, (15), 5 states have call predecessors, (15), 7 states have return successors, (10), 8 states have call predecessors, (10), 6 states have call successors, (10) [2021-08-27 06:26:10,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:26:10,197 INFO L93 Difference]: Finished difference Result 50 states and 49 transitions. [2021-08-27 06:26:10,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-27 06:26:10,198 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 2.5714285714285716) internal successors, (54), 20 states have internal predecessors, (54), 8 states have call successors, (15), 5 states have call predecessors, (15), 7 states have return successors, (10), 8 states have call predecessors, (10), 6 states have call successors, (10) Word has length 40 [2021-08-27 06:26:10,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:26:10,199 INFO L225 Difference]: With dead ends: 50 [2021-08-27 06:26:10,199 INFO L226 Difference]: Without dead ends: 50 [2021-08-27 06:26:10,199 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 54 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 898.0ms TimeCoverageRelationStatistics Valid=223, Invalid=899, Unknown=0, NotChecked=0, Total=1122 [2021-08-27 06:26:10,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-08-27 06:26:10,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2021-08-27 06:26:10,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 32 states have (on average 1.0625) internal successors, (34), 34 states have internal predecessors, (34), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-08-27 06:26:10,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 49 transitions. [2021-08-27 06:26:10,201 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 49 transitions. Word has length 40 [2021-08-27 06:26:10,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:26:10,201 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 49 transitions. [2021-08-27 06:26:10,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 2.5714285714285716) internal successors, (54), 20 states have internal predecessors, (54), 8 states have call successors, (15), 5 states have call predecessors, (15), 7 states have return successors, (10), 8 states have call predecessors, (10), 6 states have call successors, (10) [2021-08-27 06:26:10,201 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 49 transitions. [2021-08-27 06:26:10,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-08-27 06:26:10,202 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:26:10,202 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:26:10,210 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 06:26:10,409 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 06:26:10,410 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 82 more)] === [2021-08-27 06:26:10,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:26:10,410 INFO L82 PathProgramCache]: Analyzing trace with hash -465558587, now seen corresponding path program 1 times [2021-08-27 06:26:10,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:26:10,410 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [212927298] [2021-08-27 06:26:10,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:26:10,411 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:26:10,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:26:10,411 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 06:26:10,440 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 06:26:10,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 06:26:10,915 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 06:26:10,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 06:26:11,008 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-08-27 06:26:11,008 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-27 06:26:11,009 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:11,010 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-08-27 06:26:11,010 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-08-27 06:26:11,010 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-08-27 06:26:11,010 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-08-27 06:26:11,010 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-08-27 06:26:11,011 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-08-27 06:26:11,011 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-08-27 06:26:11,011 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-08-27 06:26:11,011 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-08-27 06:26:11,011 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-08-27 06:26:11,011 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-08-27 06:26:11,011 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-08-27 06:26:11,011 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:26:11,012 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:26:11,012 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-08-27 06:26:11,012 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-08-27 06:26:11,012 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-08-27 06:26:11,012 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-08-27 06:26:11,012 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-08-27 06:26:11,012 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-08-27 06:26:11,012 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:26:11,012 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:26:11,013 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:26:11,013 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:26:11,013 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:26:11,013 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:26:11,013 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-08-27 06:26:11,013 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-08-27 06:26:11,013 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-08-27 06:26:11,013 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-08-27 06:26:11,014 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:26:11,014 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:26:11,014 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-08-27 06:26:11,014 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-08-27 06:26:11,014 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-08-27 06:26:11,014 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-08-27 06:26:11,014 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-08-27 06:26:11,014 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-08-27 06:26:11,015 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:26:11,015 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:26:11,015 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe3_6Err0REQUIRES_VIOLATION [2021-08-27 06:26:11,015 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe3_6Err1REQUIRES_VIOLATION [2021-08-27 06:26:11,015 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe3_6Err2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:11,015 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe3_6Err3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:11,015 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe3_6Err4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:11,015 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe3_6Err5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:11,016 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe3_6Err6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:11,016 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe3_6Err7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:11,016 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-08-27 06:26:11,016 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-08-27 06:26:11,016 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:11,016 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:11,016 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:11,016 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:11,017 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:11,017 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:11,017 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-08-27 06:26:11,017 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-08-27 06:26:11,017 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-08-27 06:26:11,017 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-08-27 06:26:11,017 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-08-27 06:26:11,018 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-08-27 06:26:11,018 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-08-27 06:26:11,018 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-08-27 06:26:11,018 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-08-27 06:26:11,018 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:11,018 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:11,018 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:11,018 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:11,019 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:11,019 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:11,019 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-08-27 06:26:11,019 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-08-27 06:26:11,019 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:26:11,019 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:26:11,019 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:26:11,019 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:26:11,019 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-08-27 06:26:11,020 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-08-27 06:26:11,020 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr0REQUIRES_VIOLATION [2021-08-27 06:26:11,020 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr1REQUIRES_VIOLATION [2021-08-27 06:26:11,020 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_6Err0REQUIRES_VIOLATION [2021-08-27 06:26:11,020 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_6Err1REQUIRES_VIOLATION [2021-08-27 06:26:11,020 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:11,020 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:11,044 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2021-08-27 06:26:11,229 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 06:26:11,233 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-27 06:26:11,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 06:26:11 BoogieIcfgContainer [2021-08-27 06:26:11,257 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-27 06:26:11,258 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 06:26:11,258 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 06:26:11,258 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 06:26:11,258 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:24:11" (3/4) ... [2021-08-27 06:26:11,259 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-08-27 06:26:11,292 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 06:26:11,292 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 06:26:11,292 INFO L168 Benchmark]: Toolchain (without parser) took 122327.02 ms. Allocated memory was 56.6 MB in the beginning and 188.7 MB in the end (delta: 132.1 MB). Free memory was 34.4 MB in the beginning and 146.7 MB in the end (delta: -112.3 MB). Peak memory consumption was 19.5 MB. Max. memory is 16.1 GB. [2021-08-27 06:26:11,293 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 56.6 MB. Free memory was 39.2 MB in the beginning and 39.2 MB in the end (delta: 38.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:26:11,293 INFO L168 Benchmark]: CACSL2BoogieTranslator took 475.68 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 34.2 MB in the beginning and 36.0 MB in the end (delta: -1.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-08-27 06:26:11,293 INFO L168 Benchmark]: Boogie Preprocessor took 109.08 ms. Allocated memory is still 71.3 MB. Free memory was 36.0 MB in the beginning and 51.0 MB in the end (delta: -14.9 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2021-08-27 06:26:11,293 INFO L168 Benchmark]: RCFGBuilder took 1453.54 ms. Allocated memory was 71.3 MB in the beginning and 88.1 MB in the end (delta: 16.8 MB). Free memory was 50.7 MB in the beginning and 48.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 33.3 MB. Max. memory is 16.1 GB. [2021-08-27 06:26:11,294 INFO L168 Benchmark]: TraceAbstraction took 120250.25 ms. Allocated memory was 88.1 MB in the beginning and 188.7 MB in the end (delta: 100.7 MB). Free memory was 48.0 MB in the beginning and 149.8 MB in the end (delta: -101.9 MB). Peak memory consumption was 100.5 MB. Max. memory is 16.1 GB. [2021-08-27 06:26:11,294 INFO L168 Benchmark]: Witness Printer took 34.29 ms. Allocated memory is still 188.7 MB. Free memory was 149.8 MB in the beginning and 146.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 06:26:11,295 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 56.6 MB. Free memory was 39.2 MB in the beginning and 39.2 MB in the end (delta: 38.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 475.68 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 34.2 MB in the beginning and 36.0 MB in the end (delta: -1.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 109.08 ms. Allocated memory is still 71.3 MB. Free memory was 36.0 MB in the beginning and 51.0 MB in the end (delta: -14.9 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1453.54 ms. Allocated memory was 71.3 MB in the beginning and 88.1 MB in the end (delta: 16.8 MB). Free memory was 50.7 MB in the beginning and 48.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 33.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 120250.25 ms. Allocated memory was 88.1 MB in the beginning and 188.7 MB in the end (delta: 100.7 MB). Free memory was 48.0 MB in the beginning and 149.8 MB in the end (delta: -101.9 MB). Peak memory consumption was 100.5 MB. Max. memory is 16.1 GB. * Witness Printer took 34.29 ms. Allocated memory is still 188.7 MB. Free memory was 149.8 MB in the beginning and 146.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 - CounterExampleResult [Line: 782]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L784] struct A a6; VAL [\old(a6)=null, \old(a6)=null, \old(ldv_global_msg_list)=null, \old(ldv_global_msg_list)=null, a6={3:0}, ldv_global_msg_list={-2147483648:0}] [L793] CALL entry_point() VAL [a6={3:0}, ldv_global_msg_list={-2147483648:0}] [L786] CALL, EXPR probe3_6(&a6) VAL [a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}] [L764] int ret = - -3; VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}, ret=3] [L765] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4, a6={3:0}, ldv_global_msg_list={-2147483648:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L765] RET, EXPR ldv_malloc(sizeof(int)) VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}, ldv_malloc(sizeof(int))={1:0}, ret=3] [L765] int *p = (int *)ldv_malloc(sizeof(int)); [L766] COND FALSE !(p==0) VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=3] [L768] CALL, EXPR f6() VAL [a6={3:0}, ldv_global_msg_list={-2147483648:0}] [L758] return __VERIFIER_nondet_int(); [L768] RET, EXPR f6() VAL [a={3:0}, a={3:0}, a6={3:0}, f6()=0, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=3] [L768] ret = f6() [L769] COND FALSE !(ret<0) VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=0] [L771] CALL, EXPR g6() VAL [a6={3:0}, ldv_global_msg_list={-2147483648:0}] [L761] return __VERIFIER_nondet_int(); [L771] RET, EXPR g6() VAL [a={3:0}, a={3:0}, a6={3:0}, g6()=0, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=0] [L771] ret = g6() [L772] COND FALSE !(ret<0) VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=0] [L774] a->p = p VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=0] [L775] free(p) VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=0] [L775] free(p) VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=0] [L775] free(p) [L776] return 0; VAL [\result=0, a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=0] [L786] RET, EXPR probe3_6(&a6) VAL [a6={3:0}, ldv_global_msg_list={-2147483648:0}, probe3_6(&a6)=0] [L786] int ret = probe3_6(&a6); [L787] COND TRUE ret==0 VAL [a6={3:0}, ldv_global_msg_list={-2147483648:0}, ret=0] [L788] CALL disconnect_6(&a6) VAL [a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}] [L782] EXPR a->p VAL [a={3:0}, a={3:0}, a->p={1:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}] [L782] free(a->p) VAL [a={3:0}, a={3:0}, a->p={1:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}] [L782] free(a->p) VAL [a={3:0}, a={3:0}, a->p={1:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}] [L782] free(a->p) VAL [a={3:0}, a={3:0}, a->p={1:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}] - 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: 774]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 775]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 775]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 775]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 778]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 778]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 778]: Unable to prove that free always succeeds Unable to prove that free 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: 792]: 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: 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. - UnprovableResult [Line: 790]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 790]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 782]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 782]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 782]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 782]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 51 procedures, 379 locations, 86 error locations. Started 1 CEGAR loops. OverallTime: 120184.0ms, OverallIterations: 16, TraceHistogramMax: 1, EmptinessCheckTime: 25.5ms, AutomataDifference: 94419.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 790 SDtfs, 1229 SDslu, 2395 SDs, 0 SdLazy, 1902 SolverSat, 329 SolverUnsat, 38 SolverUnknown, 0 SolverNotchecked, 79844.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 873 GetRequests, 639 SyntacticMatches, 49 SemanticMatches, 185 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 724 ImplicationChecksByTransitivity, 24578.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=139occurred in iteration=0, InterpolantAutomatonStates: 133, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 74.0ms AutomataMinimizationTime, 15 MinimizatonAttempts, 92 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 147.4ms SsaConstructionTime, 392.2ms SatisfiabilityAnalysisTime, 17753.6ms InterpolantComputationTime, 456 NumberOfCodeBlocks, 456 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 800 ConstructedInterpolants, 71 QuantifiedInterpolants, 6419 SizeOfPredicates, 72 NumberOfNonLiveVariables, 1767 ConjunctsInSsa, 161 ConjunctsInUnsatCore, 30 InterpolantComputations, 30 PerfectInterpolantSequences, 0/0 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 proved your program to be incorrect! [2021-08-27 06:26:11,336 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...