./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.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 d88c88b73ce2cba22159e6d055a27f0c7e4ebba5 ................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.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 d88c88b73ce2cba22159e6d055a27f0c7e4ebba5 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-30 17:50:38,304 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-30 17:50:38,306 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-30 17:50:38,326 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-30 17:50:38,326 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-30 17:50:38,327 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-30 17:50:38,328 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-30 17:50:38,339 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-30 17:50:38,341 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-30 17:50:38,345 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-30 17:50:38,345 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-30 17:50:38,348 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-30 17:50:38,349 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-30 17:50:38,351 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-30 17:50:38,352 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-30 17:50:38,354 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-30 17:50:38,356 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-30 17:50:38,357 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-30 17:50:38,359 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-30 17:50:38,364 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-30 17:50:38,365 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-30 17:50:38,366 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-30 17:50:38,367 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-30 17:50:38,368 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-30 17:50:38,373 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-30 17:50:38,373 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-30 17:50:38,373 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-30 17:50:38,375 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-30 17:50:38,375 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-30 17:50:38,376 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-30 17:50:38,376 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-30 17:50:38,376 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-30 17:50:38,377 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-30 17:50:38,378 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-30 17:50:38,379 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-30 17:50:38,379 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-30 17:50:38,380 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-30 17:50:38,380 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-30 17:50:38,380 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-30 17:50:38,381 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-30 17:50:38,381 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-30 17:50:38,382 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-08-30 17:50:38,413 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-30 17:50:38,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-30 17:50:38,414 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-30 17:50:38,414 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-30 17:50:38,416 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-30 17:50:38,416 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-30 17:50:38,416 INFO L138 SettingsManager]: * Use SBE=true [2021-08-30 17:50:38,416 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-30 17:50:38,416 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-30 17:50:38,416 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-30 17:50:38,417 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-30 17:50:38,417 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-30 17:50:38,417 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-30 17:50:38,418 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-30 17:50:38,418 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-30 17:50:38,418 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-30 17:50:38,418 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-30 17:50:38,418 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-30 17:50:38,418 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-30 17:50:38,418 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-30 17:50:38,419 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-30 17:50:38,419 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-30 17:50:38,419 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-30 17:50:38,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 17:50:38,419 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-30 17:50:38,419 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-30 17:50:38,420 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-30 17:50:38,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-30 17:50:38,420 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-30 17:50:38,420 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d88c88b73ce2cba22159e6d055a27f0c7e4ebba5 [2021-08-30 17:50:38,721 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-30 17:50:38,743 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-30 17:50:38,745 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-30 17:50:38,746 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-30 17:50:38,747 INFO L275 PluginConnector]: CDTParser initialized [2021-08-30 17:50:38,748 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-1.i [2021-08-30 17:50:38,796 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b1fe75cb/6e7f853ec4d849da924114ae2f9aee20/FLAG00864b18f [2021-08-30 17:50:39,210 INFO L306 CDTParser]: Found 1 translation units. [2021-08-30 17:50:39,211 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-1.i [2021-08-30 17:50:39,221 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b1fe75cb/6e7f853ec4d849da924114ae2f9aee20/FLAG00864b18f [2021-08-30 17:50:39,230 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b1fe75cb/6e7f853ec4d849da924114ae2f9aee20 [2021-08-30 17:50:39,232 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-30 17:50:39,233 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-30 17:50:39,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-30 17:50:39,234 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-30 17:50:39,236 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-30 17:50:39,237 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:50:39" (1/1) ... [2021-08-30 17:50:39,237 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e788a2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:50:39, skipping insertion in model container [2021-08-30 17:50:39,238 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:50:39" (1/1) ... [2021-08-30 17:50:39,242 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-30 17:50:39,263 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-30 17:50:39,543 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 17:50:39,556 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) [2021-08-30 17:50:39,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4d96d038 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:50:39, skipping insertion in model container [2021-08-30 17:50:39,557 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-30 17:50:39,557 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-08-30 17:50:39,559 INFO L158 Benchmark]: Toolchain (without parser) took 325.19ms. Allocated memory is still 56.6MB. Free memory was 33.0MB in the beginning and 35.6MB in the end (delta: -2.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-08-30 17:50:39,560 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 56.6MB. Free memory is still 37.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 17:50:39,561 INFO L158 Benchmark]: CACSL2BoogieTranslator took 323.48ms. Allocated memory is still 56.6MB. Free memory was 32.9MB in the beginning and 35.6MB in the end (delta: -2.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-08-30 17:50:39,562 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 56.6MB. Free memory is still 37.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 323.48ms. Allocated memory is still 56.6MB. Free memory was 32.9MB in the beginning and 35.6MB in the end (delta: -2.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * 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-wip.dd.seqcomp-5fbdf5b [2021-08-30 17:50:40,986 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-30 17:50:40,988 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-30 17:50:41,016 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-30 17:50:41,016 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-30 17:50:41,017 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-30 17:50:41,018 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-30 17:50:41,019 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-30 17:50:41,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-30 17:50:41,021 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-30 17:50:41,022 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-30 17:50:41,023 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-30 17:50:41,023 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-30 17:50:41,024 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-30 17:50:41,029 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-30 17:50:41,031 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-30 17:50:41,032 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-30 17:50:41,035 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-30 17:50:41,037 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-30 17:50:41,040 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-30 17:50:41,042 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-30 17:50:41,043 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-30 17:50:41,044 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-30 17:50:41,045 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-30 17:50:41,057 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-30 17:50:41,057 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-30 17:50:41,057 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-30 17:50:41,059 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-30 17:50:41,060 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-30 17:50:41,060 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-30 17:50:41,062 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-30 17:50:41,063 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-30 17:50:41,064 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-30 17:50:41,064 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-30 17:50:41,065 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-30 17:50:41,065 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-30 17:50:41,066 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-30 17:50:41,066 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-30 17:50:41,067 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-30 17:50:41,067 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-30 17:50:41,068 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-30 17:50:41,068 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-08-30 17:50:41,088 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-30 17:50:41,088 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-30 17:50:41,089 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-30 17:50:41,089 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-30 17:50:41,091 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-30 17:50:41,091 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-30 17:50:41,091 INFO L138 SettingsManager]: * Use SBE=true [2021-08-30 17:50:41,092 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-30 17:50:41,092 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-30 17:50:41,092 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-30 17:50:41,092 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-30 17:50:41,093 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-30 17:50:41,093 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-30 17:50:41,093 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-30 17:50:41,093 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-30 17:50:41,093 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-30 17:50:41,093 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-30 17:50:41,093 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-30 17:50:41,094 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-30 17:50:41,094 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-30 17:50:41,094 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-30 17:50:41,094 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-30 17:50:41,094 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-30 17:50:41,094 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-30 17:50:41,094 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-30 17:50:41,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 17:50:41,095 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-30 17:50:41,095 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-30 17:50:41,095 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-30 17:50:41,095 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-30 17:50:41,095 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-30 17:50:41,095 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-30 17:50:41,096 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d88c88b73ce2cba22159e6d055a27f0c7e4ebba5 [2021-08-30 17:50:41,376 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-30 17:50:41,393 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-30 17:50:41,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-30 17:50:41,395 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-30 17:50:41,396 INFO L275 PluginConnector]: CDTParser initialized [2021-08-30 17:50:41,398 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-1.i [2021-08-30 17:50:41,442 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f9db29cd/6d66dc5ee50b494395b9a3f55f4e1430/FLAG9c8839647 [2021-08-30 17:50:41,852 INFO L306 CDTParser]: Found 1 translation units. [2021-08-30 17:50:41,853 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-1.i [2021-08-30 17:50:41,872 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f9db29cd/6d66dc5ee50b494395b9a3f55f4e1430/FLAG9c8839647 [2021-08-30 17:50:42,213 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f9db29cd/6d66dc5ee50b494395b9a3f55f4e1430 [2021-08-30 17:50:42,215 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-30 17:50:42,216 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-30 17:50:42,217 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-30 17:50:42,217 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-30 17:50:42,219 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-30 17:50:42,220 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:50:42" (1/1) ... [2021-08-30 17:50:42,220 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@543fb114 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:50:42, skipping insertion in model container [2021-08-30 17:50:42,220 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:50:42" (1/1) ... [2021-08-30 17:50:42,224 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-30 17:50:42,250 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-30 17:50:42,510 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 17:50:42,525 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-08-30 17:50:42,538 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-30 17:50:42,566 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 17:50:42,570 INFO L203 MainTranslator]: Completed pre-run [2021-08-30 17:50:42,616 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 17:50:42,651 INFO L208 MainTranslator]: Completed translation [2021-08-30 17:50:42,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:50:42 WrapperNode [2021-08-30 17:50:42,652 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-30 17:50:42,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-30 17:50:42,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-30 17:50:42,654 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-30 17:50:42,661 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:50:42" (1/1) ... [2021-08-30 17:50:42,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:50:42" (1/1) ... [2021-08-30 17:50:42,677 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:50:42" (1/1) ... [2021-08-30 17:50:42,677 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:50:42" (1/1) ... [2021-08-30 17:50:42,716 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:50:42" (1/1) ... [2021-08-30 17:50:42,719 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:50:42" (1/1) ... [2021-08-30 17:50:42,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:50:42" (1/1) ... [2021-08-30 17:50:42,742 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-30 17:50:42,743 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-30 17:50:42,743 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-30 17:50:42,743 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-30 17:50:42,744 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:50:42" (1/1) ... [2021-08-30 17:50:42,763 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 17:50:42,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 17:50:42,794 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) [2021-08-30 17:50:42,802 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 [2021-08-30 17:50:42,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-30 17:50:42,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-30 17:50:42,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-08-30 17:50:42,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-08-30 17:50:42,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-08-30 17:50:42,826 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-08-30 17:50:42,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-08-30 17:50:42,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-08-30 17:50:42,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-08-30 17:50:42,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-08-30 17:50:42,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-08-30 17:50:42,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-08-30 17:50:42,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-08-30 17:50:42,827 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-08-30 17:50:42,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-08-30 17:50:42,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-08-30 17:50:42,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-08-30 17:50:42,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-08-30 17:50:42,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-08-30 17:50:42,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-08-30 17:50:42,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-08-30 17:50:42,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-08-30 17:50:42,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-08-30 17:50:42,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-08-30 17:50:42,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-08-30 17:50:42,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-08-30 17:50:42,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-08-30 17:50:42,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-08-30 17:50:42,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-08-30 17:50:42,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-08-30 17:50:42,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-08-30 17:50:42,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-08-30 17:50:42,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-08-30 17:50:42,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-08-30 17:50:42,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-08-30 17:50:42,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-08-30 17:50:42,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-08-30 17:50:42,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-08-30 17:50:42,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-08-30 17:50:42,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-08-30 17:50:42,831 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-08-30 17:50:42,831 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-08-30 17:50:42,831 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-08-30 17:50:42,831 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-30 17:50:42,831 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-08-30 17:50:42,832 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-08-30 17:50:42,832 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-08-30 17:50:42,832 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-08-30 17:50:42,832 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-08-30 17:50:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-08-30 17:50:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-08-30 17:50:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-08-30 17:50:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-08-30 17:50:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-08-30 17:50:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-08-30 17:50:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-08-30 17:50:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-08-30 17:50:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-08-30 17:50:42,834 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-08-30 17:50:42,834 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-08-30 17:50:42,834 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-08-30 17:50:42,834 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-08-30 17:50:42,835 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-08-30 17:50:42,835 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-08-30 17:50:42,836 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-08-30 17:50:42,836 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-08-30 17:50:42,836 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-08-30 17:50:42,836 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-08-30 17:50:42,836 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-08-30 17:50:42,836 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-08-30 17:50:42,836 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-08-30 17:50:42,836 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-08-30 17:50:42,836 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-08-30 17:50:42,837 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-08-30 17:50:42,837 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-08-30 17:50:42,837 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-08-30 17:50:42,837 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-08-30 17:50:42,837 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-08-30 17:50:42,838 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-08-30 17:50:42,838 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-08-30 17:50:42,838 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-08-30 17:50:42,838 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-08-30 17:50:42,838 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-08-30 17:50:42,838 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-08-30 17:50:42,838 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-08-30 17:50:42,838 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-08-30 17:50:42,838 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-08-30 17:50:42,839 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-08-30 17:50:42,839 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-08-30 17:50:42,839 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-08-30 17:50:42,839 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-08-30 17:50:42,839 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-08-30 17:50:42,839 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-08-30 17:50:42,839 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-08-30 17:50:42,839 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-08-30 17:50:42,839 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-08-30 17:50:42,840 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-08-30 17:50:42,840 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-08-30 17:50:42,840 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-08-30 17:50:42,840 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-08-30 17:50:42,840 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-08-30 17:50:42,840 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-08-30 17:50:42,840 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-08-30 17:50:42,840 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-08-30 17:50:42,841 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-08-30 17:50:42,841 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-08-30 17:50:42,841 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-08-30 17:50:42,841 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-08-30 17:50:42,841 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-08-30 17:50:42,841 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-08-30 17:50:42,841 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-30 17:50:42,841 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-08-30 17:50:42,841 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-08-30 17:50:42,842 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-08-30 17:50:42,842 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-08-30 17:50:42,842 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-08-30 17:50:42,842 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-08-30 17:50:42,842 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-08-30 17:50:42,842 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-08-30 17:50:42,843 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-08-30 17:50:42,843 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-08-30 17:50:42,843 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-08-30 17:50:42,843 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-08-30 17:50:42,844 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-08-30 17:50:42,845 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-08-30 17:50:42,846 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-08-30 17:50:42,846 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-08-30 17:50:42,846 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-08-30 17:50:42,846 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-08-30 17:50:42,847 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-08-30 17:50:42,847 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-08-30 17:50:42,847 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-08-30 17:50:42,848 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-08-30 17:50:42,853 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-08-30 17:50:42,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-08-30 17:50:42,853 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-08-30 17:50:42,853 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-08-30 17:50:42,854 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-08-30 17:50:42,854 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-08-30 17:50:42,854 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-08-30 17:50:42,854 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-08-30 17:50:42,854 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-08-30 17:50:42,856 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-08-30 17:50:42,856 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-08-30 17:50:42,857 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-08-30 17:50:42,857 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-08-30 17:50:42,857 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-08-30 17:50:42,857 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-08-30 17:50:42,857 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-08-30 17:50:42,857 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-08-30 17:50:42,857 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-08-30 17:50:42,857 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-08-30 17:50:42,857 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-08-30 17:50:42,857 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-08-30 17:50:42,858 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-08-30 17:50:42,858 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-30 17:50:42,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-08-30 17:50:42,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-08-30 17:50:42,858 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-08-30 17:50:42,858 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-08-30 17:50:42,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-08-30 17:50:42,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-30 17:50:42,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-08-30 17:50:42,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-08-30 17:50:42,858 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-08-30 17:50:42,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-30 17:50:42,859 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-08-30 17:50:42,859 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-08-30 17:50:42,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-08-30 17:50:42,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-30 17:50:42,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-08-30 17:50:42,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-08-30 17:50:42,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-08-30 17:50:42,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-08-30 17:50:42,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-08-30 17:50:42,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-08-30 17:50:42,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-30 17:50:42,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-08-30 17:50:42,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-08-30 17:50:42,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-08-30 17:50:42,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-08-30 17:50:42,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-08-30 17:50:42,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-30 17:50:42,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-30 17:50:42,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-08-30 17:50:42,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-08-30 17:50:42,861 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-08-30 17:50:42,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-08-30 17:50:42,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-08-30 17:50:42,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-08-30 17:50:42,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-08-30 17:50:42,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-08-30 17:50:42,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-08-30 17:50:42,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-08-30 17:50:42,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-08-30 17:50:42,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-08-30 17:50:42,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-08-30 17:50:42,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-08-30 17:50:42,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-08-30 17:50:42,862 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-08-30 17:50:42,862 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-08-30 17:50:42,863 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-08-30 17:50:42,863 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-30 17:50:42,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-30 17:50:42,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-30 17:50:42,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-08-30 17:50:42,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-30 17:50:42,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-08-30 17:50:42,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-08-30 17:50:42,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-08-30 17:50:42,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-08-30 17:50:42,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-08-30 17:50:43,252 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-30 17:50:43,289 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-30 17:50:43,354 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-30 17:50:43,355 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-08-30 17:50:43,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:50:43 BoogieIcfgContainer [2021-08-30 17:50:43,356 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-30 17:50:43,357 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-30 17:50:43,358 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-30 17:50:43,359 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-30 17:50:43,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 05:50:42" (1/3) ... [2021-08-30 17:50:43,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7366f993 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:50:43, skipping insertion in model container [2021-08-30 17:50:43,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:50:42" (2/3) ... [2021-08-30 17:50:43,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7366f993 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:50:43, skipping insertion in model container [2021-08-30 17:50:43,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:50:43" (3/3) ... [2021-08-30 17:50:43,366 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test22_1-1.i [2021-08-30 17:50:43,369 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-30 17:50:43,370 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 71 error locations. [2021-08-30 17:50:43,407 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-30 17:50:43,416 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 [2021-08-30 17:50:43,416 INFO L340 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2021-08-30 17:50:43,437 INFO L276 IsEmpty]: Start isEmpty. Operand has 174 states, 97 states have (on average 1.4536082474226804) internal successors, (141), 132 states have internal predecessors, (141), 22 states have call successors, (22), 21 states have call predecessors, (22), 21 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2021-08-30 17:50:43,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-30 17:50:43,443 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:50:43,443 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:50:43,444 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_kobject_createErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 17:50:43,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:50:43,448 INFO L82 PathProgramCache]: Analyzing trace with hash -580210168, now seen corresponding path program 1 times [2021-08-30 17:50:43,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:50:43,456 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1527758529] [2021-08-30 17:50:43,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:50:43,456 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:50:43,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:50:43,458 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) [2021-08-30 17:50:43,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-30 17:50:43,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:50:43,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-30 17:50:43,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:50:43,723 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 [2021-08-30 17:50:43,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:50:43,772 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:50:43,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:50:43,859 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:50:43,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1527758529] [2021-08-30 17:50:43,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1527758529] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:50:43,861 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:50:43,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-08-30 17:50:43,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243377911] [2021-08-30 17:50:43,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-30 17:50:43,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:50:43,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-30 17:50:43,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 17:50:43,900 INFO L87 Difference]: Start difference. First operand has 174 states, 97 states have (on average 1.4536082474226804) internal successors, (141), 132 states have internal predecessors, (141), 22 states have call successors, (22), 21 states have call predecessors, (22), 21 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-30 17:50:44,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:50:44,293 INFO L93 Difference]: Finished difference Result 156 states and 167 transitions. [2021-08-30 17:50:44,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-30 17:50:44,295 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2021-08-30 17:50:44,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:50:44,302 INFO L225 Difference]: With dead ends: 156 [2021-08-30 17:50:44,302 INFO L226 Difference]: Without dead ends: 153 [2021-08-30 17:50:44,303 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.01ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 17:50:44,306 INFO L928 BasicCegarLoop]: 43 mSDtfsCounter, 5 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 287.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.51ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 359.57ms IncrementalHoareTripleChecker+Time [2021-08-30 17:50:44,306 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 155 Invalid, 472 Unknown, 0 Unchecked, 5.51ms Time], IncrementalHoareTripleChecker [0 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 359.57ms Time] [2021-08-30 17:50:44,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-08-30 17:50:44,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 147. [2021-08-30 17:50:44,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 83 states have (on average 1.3975903614457832) internal successors, (116), 109 states have internal predecessors, (116), 21 states have call successors, (21), 20 states have call predecessors, (21), 20 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2021-08-30 17:50:44,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 158 transitions. [2021-08-30 17:50:44,336 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 158 transitions. Word has length 17 [2021-08-30 17:50:44,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:50:44,336 INFO L470 AbstractCegarLoop]: Abstraction has 147 states and 158 transitions. [2021-08-30 17:50:44,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-30 17:50:44,336 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 158 transitions. [2021-08-30 17:50:44,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-30 17:50:44,337 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:50:44,337 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:50:44,346 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-30 17:50:44,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:50:44,544 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_kobject_createErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 17:50:44,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:50:44,545 INFO L82 PathProgramCache]: Analyzing trace with hash -580210167, now seen corresponding path program 1 times [2021-08-30 17:50:44,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:50:44,545 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [486308868] [2021-08-30 17:50:44,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:50:44,545 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:50:44,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:50:44,547 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) [2021-08-30 17:50:44,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-30 17:50:44,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:50:44,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-30 17:50:44,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:50:44,689 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 [2021-08-30 17:50:44,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:50:44,767 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:50:45,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:50:45,004 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:50:45,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [486308868] [2021-08-30 17:50:45,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [486308868] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:50:45,004 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:50:45,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-08-30 17:50:45,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069779086] [2021-08-30 17:50:45,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-30 17:50:45,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:50:45,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-30 17:50:45,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-08-30 17:50:45,008 INFO L87 Difference]: Start difference. First operand 147 states and 158 transitions. Second operand has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 17:50:46,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:50:46,052 INFO L93 Difference]: Finished difference Result 152 states and 163 transitions. [2021-08-30 17:50:46,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-30 17:50:46,053 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 17 [2021-08-30 17:50:46,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:50:46,054 INFO L225 Difference]: With dead ends: 152 [2021-08-30 17:50:46,054 INFO L226 Difference]: Without dead ends: 152 [2021-08-30 17:50:46,055 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 131.53ms TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-08-30 17:50:46,055 INFO L928 BasicCegarLoop]: 40 mSDtfsCounter, 12 mSDsluCounter, 742 mSDsCounter, 0 mSdLazyCounter, 802 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 873.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.58ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1003.36ms IncrementalHoareTripleChecker+Time [2021-08-30 17:50:46,056 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 252 Invalid, 802 Unknown, 0 Unchecked, 5.58ms Time], IncrementalHoareTripleChecker [0 Valid, 802 Invalid, 0 Unknown, 0 Unchecked, 1003.36ms Time] [2021-08-30 17:50:46,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-08-30 17:50:46,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 147. [2021-08-30 17:50:46,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 82 states have (on average 1.4024390243902438) internal successors, (115), 109 states have internal predecessors, (115), 21 states have call successors, (21), 20 states have call predecessors, (21), 20 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2021-08-30 17:50:46,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 157 transitions. [2021-08-30 17:50:46,065 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 157 transitions. Word has length 17 [2021-08-30 17:50:46,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:50:46,066 INFO L470 AbstractCegarLoop]: Abstraction has 147 states and 157 transitions. [2021-08-30 17:50:46,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 17:50:46,066 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 157 transitions. [2021-08-30 17:50:46,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-30 17:50:46,066 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:50:46,067 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:50:46,082 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-08-30 17:50:46,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:50:46,270 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_kobject_createErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 17:50:46,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:50:46,270 INFO L82 PathProgramCache]: Analyzing trace with hash -551581017, now seen corresponding path program 1 times [2021-08-30 17:50:46,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:50:46,271 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [162825403] [2021-08-30 17:50:46,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:50:46,271 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:50:46,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:50:46,273 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) [2021-08-30 17:50:46,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-30 17:50:46,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:50:46,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-30 17:50:46,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:50:46,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:50:46,452 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:50:46,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:50:46,520 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:50:46,520 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [162825403] [2021-08-30 17:50:46,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [162825403] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:50:46,521 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:50:46,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-30 17:50:46,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249622700] [2021-08-30 17:50:46,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-30 17:50:46,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:50:46,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-30 17:50:46,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 17:50:46,522 INFO L87 Difference]: Start difference. First operand 147 states and 157 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-30 17:50:46,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:50:46,848 INFO L93 Difference]: Finished difference Result 146 states and 154 transitions. [2021-08-30 17:50:46,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-30 17:50:46,848 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2021-08-30 17:50:46,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:50:46,849 INFO L225 Difference]: With dead ends: 146 [2021-08-30 17:50:46,849 INFO L226 Difference]: Without dead ends: 146 [2021-08-30 17:50:46,850 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.87ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 17:50:46,850 INFO L928 BasicCegarLoop]: 40 mSDtfsCounter, 1 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 252.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.73ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 312.68ms IncrementalHoareTripleChecker+Time [2021-08-30 17:50:46,851 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 159 Invalid, 444 Unknown, 0 Unchecked, 2.73ms Time], IncrementalHoareTripleChecker [1 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 312.68ms Time] [2021-08-30 17:50:46,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-08-30 17:50:46,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 144. [2021-08-30 17:50:46,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 81 states have (on average 1.382716049382716) internal successors, (112), 106 states have internal predecessors, (112), 20 states have call successors, (20), 20 states have call predecessors, (20), 20 states have return successors, (20), 20 states have call predecessors, (20), 19 states have call successors, (20) [2021-08-30 17:50:46,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 152 transitions. [2021-08-30 17:50:46,858 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 152 transitions. Word has length 17 [2021-08-30 17:50:46,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:50:46,858 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 152 transitions. [2021-08-30 17:50:46,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-30 17:50:46,858 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 152 transitions. [2021-08-30 17:50:46,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-08-30 17:50:46,859 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:50:46,859 INFO L513 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] [2021-08-30 17:50:46,881 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-08-30 17:50:47,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:50:47,059 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_atomic_add_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 17:50:47,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:50:47,060 INFO L82 PathProgramCache]: Analyzing trace with hash 180429038, now seen corresponding path program 1 times [2021-08-30 17:50:47,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:50:47,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2107184488] [2021-08-30 17:50:47,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:50:47,061 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:50:47,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:50:47,061 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) [2021-08-30 17:50:47,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-08-30 17:50:47,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:50:47,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-30 17:50:47,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:50:47,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:50:47,247 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:50:47,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:50:47,313 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:50:47,313 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2107184488] [2021-08-30 17:50:47,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2107184488] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:50:47,314 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:50:47,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-30 17:50:47,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984681452] [2021-08-30 17:50:47,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-30 17:50:47,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:50:47,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-30 17:50:47,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 17:50:47,315 INFO L87 Difference]: Start difference. First operand 144 states and 152 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 17:50:47,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:50:47,600 INFO L93 Difference]: Finished difference Result 146 states and 153 transitions. [2021-08-30 17:50:47,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-30 17:50:47,600 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2021-08-30 17:50:47,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:50:47,601 INFO L225 Difference]: With dead ends: 146 [2021-08-30 17:50:47,601 INFO L226 Difference]: Without dead ends: 146 [2021-08-30 17:50:47,602 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.74ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 17:50:47,603 INFO L928 BasicCegarLoop]: 40 mSDtfsCounter, 4 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 221.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.80ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 273.54ms IncrementalHoareTripleChecker+Time [2021-08-30 17:50:47,603 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 158 Invalid, 435 Unknown, 0 Unchecked, 2.80ms Time], IncrementalHoareTripleChecker [0 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 273.54ms Time] [2021-08-30 17:50:47,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-08-30 17:50:47,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 144. [2021-08-30 17:50:47,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 81 states have (on average 1.3703703703703705) internal successors, (111), 106 states have internal predecessors, (111), 20 states have call successors, (20), 20 states have call predecessors, (20), 20 states have return successors, (20), 20 states have call predecessors, (20), 19 states have call successors, (20) [2021-08-30 17:50:47,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 151 transitions. [2021-08-30 17:50:47,611 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 151 transitions. Word has length 27 [2021-08-30 17:50:47,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:50:47,611 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 151 transitions. [2021-08-30 17:50:47,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 17:50:47,612 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 151 transitions. [2021-08-30 17:50:47,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-08-30 17:50:47,612 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:50:47,612 INFO L513 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] [2021-08-30 17:50:47,625 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-08-30 17:50:47,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:50:47,813 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_atomic_add_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 17:50:47,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:50:47,814 INFO L82 PathProgramCache]: Analyzing trace with hash -330105139, now seen corresponding path program 1 times [2021-08-30 17:50:47,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:50:47,814 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [394807235] [2021-08-30 17:50:47,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:50:47,814 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:50:47,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:50:47,815 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) [2021-08-30 17:50:47,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-08-30 17:50:47,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:50:47,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-30 17:50:47,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:50:48,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:50:48,039 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:50:48,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:50:48,123 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:50:48,123 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [394807235] [2021-08-30 17:50:48,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [394807235] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:50:48,124 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:50:48,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-08-30 17:50:48,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104754322] [2021-08-30 17:50:48,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-30 17:50:48,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:50:48,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-30 17:50:48,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-30 17:50:48,125 INFO L87 Difference]: Start difference. First operand 144 states and 151 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 17:50:48,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:50:48,558 INFO L93 Difference]: Finished difference Result 160 states and 168 transitions. [2021-08-30 17:50:48,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-30 17:50:48,558 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2021-08-30 17:50:48,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:50:48,559 INFO L225 Difference]: With dead ends: 160 [2021-08-30 17:50:48,559 INFO L226 Difference]: Without dead ends: 160 [2021-08-30 17:50:48,559 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.42ms TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-30 17:50:48,560 INFO L928 BasicCegarLoop]: 40 mSDtfsCounter, 11 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 339.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.60ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 409.87ms IncrementalHoareTripleChecker+Time [2021-08-30 17:50:48,560 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 238 Invalid, 659 Unknown, 0 Unchecked, 3.60ms Time], IncrementalHoareTripleChecker [1 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 409.87ms Time] [2021-08-30 17:50:48,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-08-30 17:50:48,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 153. [2021-08-30 17:50:48,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 87 states have (on average 1.3448275862068966) internal successors, (117), 113 states have internal predecessors, (117), 21 states have call successors, (21), 21 states have call predecessors, (21), 22 states have return successors, (22), 21 states have call predecessors, (22), 20 states have call successors, (22) [2021-08-30 17:50:48,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 160 transitions. [2021-08-30 17:50:48,566 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 160 transitions. Word has length 27 [2021-08-30 17:50:48,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:50:48,566 INFO L470 AbstractCegarLoop]: Abstraction has 153 states and 160 transitions. [2021-08-30 17:50:48,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 17:50:48,567 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 160 transitions. [2021-08-30 17:50:48,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-08-30 17:50:48,567 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:50:48,567 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:50:48,574 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-08-30 17:50:48,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:50:48,774 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_kref_initErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 17:50:48,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:50:48,775 INFO L82 PathProgramCache]: Analyzing trace with hash 317366699, now seen corresponding path program 1 times [2021-08-30 17:50:48,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:50:48,775 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1903612298] [2021-08-30 17:50:48,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:50:48,775 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:50:48,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:50:48,776 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) [2021-08-30 17:50:48,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-08-30 17:50:48,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:50:48,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-30 17:50:48,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:50:48,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:50:48,923 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:50:48,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:50:49,000 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:50:49,000 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1903612298] [2021-08-30 17:50:49,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1903612298] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:50:49,000 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:50:49,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-08-30 17:50:49,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780979257] [2021-08-30 17:50:49,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-30 17:50:49,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:50:49,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-30 17:50:49,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-08-30 17:50:49,002 INFO L87 Difference]: Start difference. First operand 153 states and 160 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-30 17:50:49,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:50:49,247 INFO L93 Difference]: Finished difference Result 159 states and 166 transitions. [2021-08-30 17:50:49,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-30 17:50:49,247 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 32 [2021-08-30 17:50:49,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:50:49,248 INFO L225 Difference]: With dead ends: 159 [2021-08-30 17:50:49,248 INFO L226 Difference]: Without dead ends: 155 [2021-08-30 17:50:49,249 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.66ms TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-08-30 17:50:49,249 INFO L928 BasicCegarLoop]: 39 mSDtfsCounter, 6 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 191.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.72ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 231.72ms IncrementalHoareTripleChecker+Time [2021-08-30 17:50:49,250 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 115 Invalid, 334 Unknown, 0 Unchecked, 1.72ms Time], IncrementalHoareTripleChecker [1 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 231.72ms Time] [2021-08-30 17:50:49,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2021-08-30 17:50:49,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2021-08-30 17:50:49,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 89 states have (on average 1.3370786516853932) internal successors, (119), 115 states have internal predecessors, (119), 21 states have call successors, (21), 21 states have call predecessors, (21), 22 states have return successors, (22), 21 states have call predecessors, (22), 20 states have call successors, (22) [2021-08-30 17:50:49,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 162 transitions. [2021-08-30 17:50:49,255 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 162 transitions. Word has length 32 [2021-08-30 17:50:49,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:50:49,255 INFO L470 AbstractCegarLoop]: Abstraction has 155 states and 162 transitions. [2021-08-30 17:50:49,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-30 17:50:49,255 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 162 transitions. [2021-08-30 17:50:49,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-08-30 17:50:49,256 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:50:49,256 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:50:49,266 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-08-30 17:50:49,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:50:49,466 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_kref_initErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 17:50:49,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:50:49,466 INFO L82 PathProgramCache]: Analyzing trace with hash -1135828661, now seen corresponding path program 1 times [2021-08-30 17:50:49,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:50:49,466 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1770012591] [2021-08-30 17:50:49,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:50:49,467 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:50:49,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:50:49,473 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) [2021-08-30 17:50:49,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-08-30 17:50:49,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:50:49,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-30 17:50:49,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:50:49,635 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:50:49,636 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:50:49,777 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:50:49,777 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:50:49,777 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1770012591] [2021-08-30 17:50:49,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1770012591] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-30 17:50:49,778 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-30 17:50:49,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-08-30 17:50:49,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954484175] [2021-08-30 17:50:49,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-30 17:50:49,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:50:49,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-30 17:50:49,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-08-30 17:50:49,780 INFO L87 Difference]: Start difference. First operand 155 states and 162 transitions. Second operand has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-30 17:50:50,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:50:50,211 INFO L93 Difference]: Finished difference Result 163 states and 172 transitions. [2021-08-30 17:50:50,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-30 17:50:50,211 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 34 [2021-08-30 17:50:50,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:50:50,212 INFO L225 Difference]: With dead ends: 163 [2021-08-30 17:50:50,212 INFO L226 Difference]: Without dead ends: 159 [2021-08-30 17:50:50,212 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 111.05ms TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2021-08-30 17:50:50,213 INFO L928 BasicCegarLoop]: 39 mSDtfsCounter, 17 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 295.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.26ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 359.86ms IncrementalHoareTripleChecker+Time [2021-08-30 17:50:50,213 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 153 Invalid, 467 Unknown, 0 Unchecked, 2.26ms Time], IncrementalHoareTripleChecker [8 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 359.86ms Time] [2021-08-30 17:50:50,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2021-08-30 17:50:50,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2021-08-30 17:50:50,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 93 states have (on average 1.3225806451612903) internal successors, (123), 119 states have internal predecessors, (123), 21 states have call successors, (21), 21 states have call predecessors, (21), 22 states have return successors, (22), 21 states have call predecessors, (22), 20 states have call successors, (22) [2021-08-30 17:50:50,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 166 transitions. [2021-08-30 17:50:50,219 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 166 transitions. Word has length 34 [2021-08-30 17:50:50,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:50:50,219 INFO L470 AbstractCegarLoop]: Abstraction has 159 states and 166 transitions. [2021-08-30 17:50:50,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-30 17:50:50,219 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 166 transitions. [2021-08-30 17:50:50,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-08-30 17:50:50,220 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:50:50,220 INFO L513 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] [2021-08-30 17:50:50,233 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-08-30 17:50:50,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:50:50,429 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_atomic_sub_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 17:50:50,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:50:50,430 INFO L82 PathProgramCache]: Analyzing trace with hash 591246760, now seen corresponding path program 1 times [2021-08-30 17:50:50,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:50:50,430 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [199120106] [2021-08-30 17:50:50,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:50:50,430 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:50:50,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:50:50,431 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) [2021-08-30 17:50:50,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-08-30 17:50:50,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:50:50,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-30 17:50:50,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:50:50,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:50:50,632 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:50:50,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:50:50,730 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:50:50,730 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [199120106] [2021-08-30 17:50:50,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [199120106] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:50:50,731 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:50:50,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-08-30 17:50:50,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054443537] [2021-08-30 17:50:50,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-30 17:50:50,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:50:50,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-30 17:50:50,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-30 17:50:50,733 INFO L87 Difference]: Start difference. First operand 159 states and 166 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 5 states have internal predecessors, (22), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-30 17:50:51,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:50:51,181 INFO L93 Difference]: Finished difference Result 169 states and 176 transitions. [2021-08-30 17:50:51,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-30 17:50:51,182 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 5 states have internal predecessors, (22), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 36 [2021-08-30 17:50:51,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:50:51,183 INFO L225 Difference]: With dead ends: 169 [2021-08-30 17:50:51,183 INFO L226 Difference]: Without dead ends: 169 [2021-08-30 17:50:51,183 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 36.87ms TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-30 17:50:51,184 INFO L928 BasicCegarLoop]: 40 mSDtfsCounter, 7 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 364.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.33ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 427.59ms IncrementalHoareTripleChecker+Time [2021-08-30 17:50:51,184 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 238 Invalid, 659 Unknown, 0 Unchecked, 3.33ms Time], IncrementalHoareTripleChecker [1 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 427.59ms Time] [2021-08-30 17:50:51,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2021-08-30 17:50:51,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 165. [2021-08-30 17:50:51,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 97 states have (on average 1.309278350515464) internal successors, (127), 123 states have internal predecessors, (127), 22 states have call successors, (22), 22 states have call predecessors, (22), 23 states have return successors, (23), 22 states have call predecessors, (23), 21 states have call successors, (23) [2021-08-30 17:50:51,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 172 transitions. [2021-08-30 17:50:51,190 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 172 transitions. Word has length 36 [2021-08-30 17:50:51,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:50:51,190 INFO L470 AbstractCegarLoop]: Abstraction has 165 states and 172 transitions. [2021-08-30 17:50:51,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 5 states have internal predecessors, (22), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-30 17:50:51,190 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 172 transitions. [2021-08-30 17:50:51,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-08-30 17:50:51,191 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:50:51,191 INFO L513 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] [2021-08-30 17:50:51,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-08-30 17:50:51,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:50:51,403 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 17:50:51,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:50:51,404 INFO L82 PathProgramCache]: Analyzing trace with hash -212953728, now seen corresponding path program 1 times [2021-08-30 17:50:51,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:50:51,404 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1499762283] [2021-08-30 17:50:51,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:50:51,404 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:50:51,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:50:51,405 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) [2021-08-30 17:50:51,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-08-30 17:50:51,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:50:51,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-30 17:50:51,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:50:51,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:50:51,562 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:50:51,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:50:51,698 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:50:51,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1499762283] [2021-08-30 17:50:51,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1499762283] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:50:51,698 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:50:51,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-30 17:50:51,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73569834] [2021-08-30 17:50:51,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-30 17:50:51,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:50:51,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-30 17:50:51,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 17:50:51,700 INFO L87 Difference]: Start difference. First operand 165 states and 172 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-30 17:50:51,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:50:51,882 INFO L93 Difference]: Finished difference Result 176 states and 182 transitions. [2021-08-30 17:50:51,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-30 17:50:51,882 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 34 [2021-08-30 17:50:51,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:50:51,883 INFO L225 Difference]: With dead ends: 176 [2021-08-30 17:50:51,883 INFO L226 Difference]: Without dead ends: 154 [2021-08-30 17:50:51,883 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.25ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 17:50:51,884 INFO L928 BasicCegarLoop]: 29 mSDtfsCounter, 75 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 144.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.25ms SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 175.14ms IncrementalHoareTripleChecker+Time [2021-08-30 17:50:51,884 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 30 Invalid, 186 Unknown, 0 Unchecked, 1.25ms Time], IncrementalHoareTripleChecker [19 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 175.14ms Time] [2021-08-30 17:50:51,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-08-30 17:50:51,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 146. [2021-08-30 17:50:51,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 84 states have (on average 1.3452380952380953) internal successors, (113), 109 states have internal predecessors, (113), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-30 17:50:51,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 152 transitions. [2021-08-30 17:50:51,889 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 152 transitions. Word has length 34 [2021-08-30 17:50:51,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:50:51,889 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 152 transitions. [2021-08-30 17:50:51,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-30 17:50:51,890 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 152 transitions. [2021-08-30 17:50:51,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-08-30 17:50:51,890 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:50:51,890 INFO L513 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:50:51,899 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-08-30 17:50:52,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:50:52,099 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_kref_initErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 17:50:52,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:50:52,100 INFO L82 PathProgramCache]: Analyzing trace with hash -1203345269, now seen corresponding path program 2 times [2021-08-30 17:50:52,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:50:52,100 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [328416312] [2021-08-30 17:50:52,100 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-30 17:50:52,100 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:50:52,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:50:52,101 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) [2021-08-30 17:50:52,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-08-30 17:50:52,206 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-08-30 17:50:52,206 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-30 17:50:52,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-30 17:50:52,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:50:52,234 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 [2021-08-30 17:50:52,397 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-08-30 17:50:52,397 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:50:52,548 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-08-30 17:50:52,549 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:50:52,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [328416312] [2021-08-30 17:50:52,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [328416312] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:50:52,549 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:50:52,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2021-08-30 17:50:52,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685789219] [2021-08-30 17:50:52,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-30 17:50:52,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:50:52,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-30 17:50:52,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-08-30 17:50:52,551 INFO L87 Difference]: Start difference. First operand 146 states and 152 transitions. Second operand has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-30 17:50:53,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:50:53,042 INFO L93 Difference]: Finished difference Result 145 states and 151 transitions. [2021-08-30 17:50:53,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-30 17:50:53,042 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 38 [2021-08-30 17:50:53,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:50:53,043 INFO L225 Difference]: With dead ends: 145 [2021-08-30 17:50:53,043 INFO L226 Difference]: Without dead ends: 145 [2021-08-30 17:50:53,043 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 55 SyntacticMatches, 10 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 159.29ms TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-08-30 17:50:53,044 INFO L928 BasicCegarLoop]: 35 mSDtfsCounter, 26 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 345.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.19ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 96 IncrementalHoareTripleChecker+Unchecked, 432.17ms IncrementalHoareTripleChecker+Time [2021-08-30 17:50:53,044 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 170 Invalid, 725 Unknown, 0 Unchecked, 3.19ms Time], IncrementalHoareTripleChecker [6 Valid, 623 Invalid, 0 Unknown, 96 Unchecked, 432.17ms Time] [2021-08-30 17:50:53,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2021-08-30 17:50:53,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2021-08-30 17:50:53,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 84 states have (on average 1.3333333333333333) internal successors, (112), 108 states have internal predecessors, (112), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-30 17:50:53,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 151 transitions. [2021-08-30 17:50:53,047 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 151 transitions. Word has length 38 [2021-08-30 17:50:53,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:50:53,047 INFO L470 AbstractCegarLoop]: Abstraction has 145 states and 151 transitions. [2021-08-30 17:50:53,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-30 17:50:53,047 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 151 transitions. [2021-08-30 17:50:53,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-08-30 17:50:53,048 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:50:53,048 INFO L513 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:50:53,056 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-08-30 17:50:53,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:50:53,254 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_kref_initErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 17:50:53,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:50:53,255 INFO L82 PathProgramCache]: Analyzing trace with hash -1203345268, now seen corresponding path program 1 times [2021-08-30 17:50:53,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:50:53,255 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [514365186] [2021-08-30 17:50:53,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:50:53,255 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:50:53,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:50:53,293 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) [2021-08-30 17:50:53,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-08-30 17:50:53,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:50:53,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-30 17:50:53,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:50:53,515 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:50:53,515 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:50:53,781 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:50:53,782 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:50:53,782 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [514365186] [2021-08-30 17:50:53,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [514365186] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-30 17:50:53,782 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-30 17:50:53,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-08-30 17:50:53,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238271248] [2021-08-30 17:50:53,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-30 17:50:53,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:50:53,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-30 17:50:53,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2021-08-30 17:50:53,783 INFO L87 Difference]: Start difference. First operand 145 states and 151 transitions. Second operand has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-30 17:50:55,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:50:55,006 INFO L93 Difference]: Finished difference Result 157 states and 169 transitions. [2021-08-30 17:50:55,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-30 17:50:55,006 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 38 [2021-08-30 17:50:55,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:50:55,007 INFO L225 Difference]: With dead ends: 157 [2021-08-30 17:50:55,007 INFO L226 Difference]: Without dead ends: 153 [2021-08-30 17:50:55,008 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 552.29ms TimeCoverageRelationStatistics Valid=223, Invalid=377, Unknown=0, NotChecked=0, Total=600 [2021-08-30 17:50:55,008 INFO L928 BasicCegarLoop]: 39 mSDtfsCounter, 39 mSDsluCounter, 1130 mSDsCounter, 0 mSdLazyCounter, 1029 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 689.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 1063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.26ms SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 828.27ms IncrementalHoareTripleChecker+Time [2021-08-30 17:50:55,008 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 344 Invalid, 1063 Unknown, 0 Unchecked, 4.26ms Time], IncrementalHoareTripleChecker [34 Valid, 1029 Invalid, 0 Unknown, 0 Unchecked, 828.27ms Time] [2021-08-30 17:50:55,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-08-30 17:50:55,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2021-08-30 17:50:55,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 92 states have (on average 1.3043478260869565) internal successors, (120), 116 states have internal predecessors, (120), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-30 17:50:55,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 159 transitions. [2021-08-30 17:50:55,011 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 159 transitions. Word has length 38 [2021-08-30 17:50:55,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:50:55,012 INFO L470 AbstractCegarLoop]: Abstraction has 153 states and 159 transitions. [2021-08-30 17:50:55,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-30 17:50:55,012 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 159 transitions. [2021-08-30 17:50:55,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-08-30 17:50:55,013 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:50:55,013 INFO L513 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:50:55,023 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-08-30 17:50:55,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:50:55,223 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_kref_initErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 17:50:55,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:50:55,223 INFO L82 PathProgramCache]: Analyzing trace with hash 1038685964, now seen corresponding path program 2 times [2021-08-30 17:50:55,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:50:55,224 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [179093896] [2021-08-30 17:50:55,224 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-30 17:50:55,224 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:50:55,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:50:55,225 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) [2021-08-30 17:50:55,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-08-30 17:50:55,320 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-08-30 17:50:55,320 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-30 17:50:55,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 22 conjunts are in the unsatisfiable core [2021-08-30 17:50:55,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:50:55,345 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 [2021-08-30 17:50:55,603 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-08-30 17:50:55,603 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:50:56,276 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-08-30 17:50:56,276 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:50:56,276 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [179093896] [2021-08-30 17:50:56,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [179093896] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:50:56,276 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:50:56,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2021-08-30 17:50:56,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208968932] [2021-08-30 17:50:56,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-08-30 17:50:56,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:50:56,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-08-30 17:50:56,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-08-30 17:50:56,277 INFO L87 Difference]: Start difference. First operand 153 states and 159 transitions. Second operand has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 15 states have internal predecessors, (38), 7 states have call successors, (13), 8 states have call predecessors, (13), 4 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-08-30 17:50:57,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:50:57,914 INFO L93 Difference]: Finished difference Result 154 states and 160 transitions. [2021-08-30 17:50:57,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-30 17:50:57,915 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 15 states have internal predecessors, (38), 7 states have call successors, (13), 8 states have call predecessors, (13), 4 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 46 [2021-08-30 17:50:57,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:50:57,916 INFO L225 Difference]: With dead ends: 154 [2021-08-30 17:50:57,916 INFO L226 Difference]: Without dead ends: 154 [2021-08-30 17:50:57,917 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 673.77ms TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2021-08-30 17:50:57,917 INFO L928 BasicCegarLoop]: 34 mSDtfsCounter, 37 mSDsluCounter, 1031 mSDsCounter, 0 mSdLazyCounter, 1030 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1339.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 1138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.36ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 101 IncrementalHoareTripleChecker+Unchecked, 1512.27ms IncrementalHoareTripleChecker+Time [2021-08-30 17:50:57,917 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 374 Invalid, 1138 Unknown, 0 Unchecked, 4.36ms Time], IncrementalHoareTripleChecker [7 Valid, 1030 Invalid, 0 Unknown, 101 Unchecked, 1512.27ms Time] [2021-08-30 17:50:57,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-08-30 17:50:57,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 152. [2021-08-30 17:50:57,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 92 states have (on average 1.2934782608695652) internal successors, (119), 115 states have internal predecessors, (119), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-30 17:50:57,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 158 transitions. [2021-08-30 17:50:57,921 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 158 transitions. Word has length 46 [2021-08-30 17:50:57,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:50:57,921 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 158 transitions. [2021-08-30 17:50:57,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 15 states have internal predecessors, (38), 7 states have call successors, (13), 8 states have call predecessors, (13), 4 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-08-30 17:50:57,921 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 158 transitions. [2021-08-30 17:50:57,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-08-30 17:50:57,921 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:50:57,922 INFO L513 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:50:57,936 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-08-30 17:50:58,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:50:58,123 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 17:50:58,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:50:58,123 INFO L82 PathProgramCache]: Analyzing trace with hash 1614588820, now seen corresponding path program 1 times [2021-08-30 17:50:58,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:50:58,123 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [409612031] [2021-08-30 17:50:58,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:50:58,124 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:50:58,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:50:58,124 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) [2021-08-30 17:50:58,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-08-30 17:50:58,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:50:58,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 17 conjunts are in the unsatisfiable core [2021-08-30 17:50:58,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:50:58,447 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:50:58,447 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:50:59,167 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:50:59,167 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:50:59,167 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [409612031] [2021-08-30 17:50:59,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [409612031] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-30 17:50:59,168 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-30 17:50:59,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2021-08-30 17:50:59,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122020675] [2021-08-30 17:50:59,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-08-30 17:50:59,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:50:59,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-08-30 17:50:59,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=892, Unknown=0, NotChecked=0, Total=1122 [2021-08-30 17:50:59,169 INFO L87 Difference]: Start difference. First operand 152 states and 158 transitions. Second operand has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 34 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-30 17:51:00,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:51:00,728 INFO L93 Difference]: Finished difference Result 158 states and 164 transitions. [2021-08-30 17:51:00,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-30 17:51:00,728 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 34 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 51 [2021-08-30 17:51:00,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:51:00,729 INFO L225 Difference]: With dead ends: 158 [2021-08-30 17:51:00,729 INFO L226 Difference]: Without dead ends: 154 [2021-08-30 17:51:00,730 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 584.72ms TimeCoverageRelationStatistics Valid=250, Invalid=940, Unknown=0, NotChecked=0, Total=1190 [2021-08-30 17:51:00,730 INFO L928 BasicCegarLoop]: 39 mSDtfsCounter, 33 mSDsluCounter, 2102 mSDsCounter, 0 mSdLazyCounter, 1955 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1263.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 1997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.30ms SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1521.87ms IncrementalHoareTripleChecker+Time [2021-08-30 17:51:00,730 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 609 Invalid, 1997 Unknown, 0 Unchecked, 6.30ms Time], IncrementalHoareTripleChecker [42 Valid, 1955 Invalid, 0 Unknown, 0 Unchecked, 1521.87ms Time] [2021-08-30 17:51:00,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-08-30 17:51:00,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2021-08-30 17:51:00,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 94 states have (on average 1.2872340425531914) internal successors, (121), 117 states have internal predecessors, (121), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-30 17:51:00,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 160 transitions. [2021-08-30 17:51:00,741 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 160 transitions. Word has length 51 [2021-08-30 17:51:00,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:51:00,741 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 160 transitions. [2021-08-30 17:51:00,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 34 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-30 17:51:00,741 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 160 transitions. [2021-08-30 17:51:00,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-30 17:51:00,742 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:51:00,742 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:51:00,751 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-08-30 17:51:00,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:51:00,950 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 17:51:00,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:51:00,950 INFO L82 PathProgramCache]: Analyzing trace with hash 1256867828, now seen corresponding path program 2 times [2021-08-30 17:51:00,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:51:00,951 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1967058876] [2021-08-30 17:51:00,951 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-30 17:51:00,951 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:51:00,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:51:00,952 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) [2021-08-30 17:51:00,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-08-30 17:51:01,074 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-08-30 17:51:01,074 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-30 17:51:01,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-30 17:51:01,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:51:01,096 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 [2021-08-30 17:51:01,288 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-30 17:51:01,288 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:51:01,439 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-30 17:51:01,440 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:51:01,440 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1967058876] [2021-08-30 17:51:01,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1967058876] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:51:01,440 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:51:01,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2021-08-30 17:51:01,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78325366] [2021-08-30 17:51:01,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-30 17:51:01,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:51:01,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-30 17:51:01,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-08-30 17:51:01,441 INFO L87 Difference]: Start difference. First operand 154 states and 160 transitions. Second operand has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 8 states have internal predecessors, (32), 4 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2021-08-30 17:51:01,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:51:01,855 INFO L93 Difference]: Finished difference Result 154 states and 160 transitions. [2021-08-30 17:51:01,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-30 17:51:01,856 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 8 states have internal predecessors, (32), 4 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 53 [2021-08-30 17:51:01,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:51:01,857 INFO L225 Difference]: With dead ends: 154 [2021-08-30 17:51:01,857 INFO L226 Difference]: Without dead ends: 154 [2021-08-30 17:51:01,857 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 85 SyntacticMatches, 10 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 135.41ms TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-08-30 17:51:01,857 INFO L928 BasicCegarLoop]: 34 mSDtfsCounter, 28 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 312.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.32ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 95 IncrementalHoareTripleChecker+Unchecked, 377.60ms IncrementalHoareTripleChecker+Time [2021-08-30 17:51:01,858 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 202 Invalid, 764 Unknown, 0 Unchecked, 2.32ms Time], IncrementalHoareTripleChecker [5 Valid, 664 Invalid, 0 Unknown, 95 Unchecked, 377.60ms Time] [2021-08-30 17:51:01,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-08-30 17:51:01,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 152. [2021-08-30 17:51:01,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 94 states have (on average 1.2659574468085106) internal successors, (119), 115 states have internal predecessors, (119), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-30 17:51:01,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 158 transitions. [2021-08-30 17:51:01,861 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 158 transitions. Word has length 53 [2021-08-30 17:51:01,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:51:01,861 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 158 transitions. [2021-08-30 17:51:01,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 8 states have internal predecessors, (32), 4 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2021-08-30 17:51:01,861 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 158 transitions. [2021-08-30 17:51:01,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-30 17:51:01,861 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:51:01,861 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:51:01,868 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-08-30 17:51:02,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:51:02,062 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 17:51:02,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:51:02,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1256867829, now seen corresponding path program 1 times [2021-08-30 17:51:02,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:51:02,063 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [649402152] [2021-08-30 17:51:02,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:51:02,063 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:51:02,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:51:02,064 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) [2021-08-30 17:51:02,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-08-30 17:51:02,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:51:02,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 22 conjunts are in the unsatisfiable core [2021-08-30 17:51:02,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:51:02,219 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 [2021-08-30 17:51:02,498 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-30 17:51:02,498 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:51:03,144 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-30 17:51:03,144 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:51:03,144 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [649402152] [2021-08-30 17:51:03,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [649402152] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:51:03,144 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:51:03,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2021-08-30 17:51:03,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382349719] [2021-08-30 17:51:03,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-08-30 17:51:03,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:51:03,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-08-30 17:51:03,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-08-30 17:51:03,146 INFO L87 Difference]: Start difference. First operand 152 states and 158 transitions. Second operand has 23 states, 22 states have (on average 2.0) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (15), 8 states have call predecessors, (15), 4 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2021-08-30 17:51:05,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:51:05,107 INFO L93 Difference]: Finished difference Result 154 states and 160 transitions. [2021-08-30 17:51:05,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-30 17:51:05,108 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.0) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (15), 8 states have call predecessors, (15), 4 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) Word has length 53 [2021-08-30 17:51:05,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:51:05,109 INFO L225 Difference]: With dead ends: 154 [2021-08-30 17:51:05,109 INFO L226 Difference]: Without dead ends: 154 [2021-08-30 17:51:05,109 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 82 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 720.21ms TimeCoverageRelationStatistics Valid=95, Invalid=661, Unknown=0, NotChecked=0, Total=756 [2021-08-30 17:51:05,110 INFO L928 BasicCegarLoop]: 33 mSDtfsCounter, 53 mSDsluCounter, 1201 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1585.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 1316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.89ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 100 IncrementalHoareTripleChecker+Unchecked, 1787.38ms IncrementalHoareTripleChecker+Time [2021-08-30 17:51:05,110 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 393 Invalid, 1316 Unknown, 0 Unchecked, 3.89ms Time], IncrementalHoareTripleChecker [10 Valid, 1206 Invalid, 0 Unknown, 100 Unchecked, 1787.38ms Time] [2021-08-30 17:51:05,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-08-30 17:51:05,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 150. [2021-08-30 17:51:05,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 94 states have (on average 1.2446808510638299) internal successors, (117), 113 states have internal predecessors, (117), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-30 17:51:05,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 156 transitions. [2021-08-30 17:51:05,113 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 156 transitions. Word has length 53 [2021-08-30 17:51:05,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:51:05,114 INFO L470 AbstractCegarLoop]: Abstraction has 150 states and 156 transitions. [2021-08-30 17:51:05,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.0) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (15), 8 states have call predecessors, (15), 4 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2021-08-30 17:51:05,114 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 156 transitions. [2021-08-30 17:51:05,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-08-30 17:51:05,114 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:51:05,114 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:51:05,128 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2021-08-30 17:51:05,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:51:05,328 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_atomic_add_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 17:51:05,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:51:05,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1782492395, now seen corresponding path program 1 times [2021-08-30 17:51:05,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:51:05,329 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [351800767] [2021-08-30 17:51:05,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:51:05,330 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:51:05,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:51:05,330 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) [2021-08-30 17:51:05,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-08-30 17:51:05,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:51:05,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-30 17:51:05,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:51:05,577 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-30 17:51:05,577 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:51:05,708 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-30 17:51:05,708 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:51:05,708 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [351800767] [2021-08-30 17:51:05,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [351800767] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:51:05,708 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:51:05,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 8 [2021-08-30 17:51:05,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458360889] [2021-08-30 17:51:05,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-30 17:51:05,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:51:05,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-30 17:51:05,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-30 17:51:05,709 INFO L87 Difference]: Start difference. First operand 150 states and 156 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-30 17:51:05,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:51:05,999 INFO L93 Difference]: Finished difference Result 152 states and 157 transitions. [2021-08-30 17:51:05,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-30 17:51:05,999 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 56 [2021-08-30 17:51:05,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:51:06,000 INFO L225 Difference]: With dead ends: 152 [2021-08-30 17:51:06,000 INFO L226 Difference]: Without dead ends: 150 [2021-08-30 17:51:06,000 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.95ms TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-08-30 17:51:06,000 INFO L928 BasicCegarLoop]: 38 mSDtfsCounter, 10 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 226.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.44ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 277.24ms IncrementalHoareTripleChecker+Time [2021-08-30 17:51:06,001 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 186 Invalid, 504 Unknown, 0 Unchecked, 1.44ms Time], IncrementalHoareTripleChecker [1 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 277.24ms Time] [2021-08-30 17:51:06,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2021-08-30 17:51:06,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2021-08-30 17:51:06,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 94 states have (on average 1.2340425531914894) internal successors, (116), 112 states have internal predecessors, (116), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-30 17:51:06,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 155 transitions. [2021-08-30 17:51:06,003 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 155 transitions. Word has length 56 [2021-08-30 17:51:06,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:51:06,004 INFO L470 AbstractCegarLoop]: Abstraction has 150 states and 155 transitions. [2021-08-30 17:51:06,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-30 17:51:06,004 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 155 transitions. [2021-08-30 17:51:06,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-08-30 17:51:06,004 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:51:06,005 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:51:06,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-08-30 17:51:06,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:51:06,212 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_atomic_add_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 17:51:06,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:51:06,213 INFO L82 PathProgramCache]: Analyzing trace with hash 1924935738, now seen corresponding path program 1 times [2021-08-30 17:51:06,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:51:06,213 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1414565519] [2021-08-30 17:51:06,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:51:06,213 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:51:06,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:51:06,214 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:51:06,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-08-30 17:51:06,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:51:06,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-30 17:51:06,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:51:06,466 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-30 17:51:06,466 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:51:06,658 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-30 17:51:06,658 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:51:06,659 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1414565519] [2021-08-30 17:51:06,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1414565519] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:51:06,659 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:51:06,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 11 [2021-08-30 17:51:06,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208541206] [2021-08-30 17:51:06,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-30 17:51:06,660 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:51:06,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-30 17:51:06,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-08-30 17:51:06,660 INFO L87 Difference]: Start difference. First operand 150 states and 155 transitions. Second operand has 11 states, 11 states have (on average 3.0) internal successors, (33), 10 states have internal predecessors, (33), 5 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2021-08-30 17:51:07,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:51:07,074 INFO L93 Difference]: Finished difference Result 154 states and 158 transitions. [2021-08-30 17:51:07,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-30 17:51:07,075 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 10 states have internal predecessors, (33), 5 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) Word has length 61 [2021-08-30 17:51:07,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:51:07,075 INFO L225 Difference]: With dead ends: 154 [2021-08-30 17:51:07,076 INFO L226 Difference]: Without dead ends: 150 [2021-08-30 17:51:07,076 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 60.43ms TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-08-30 17:51:07,076 INFO L928 BasicCegarLoop]: 37 mSDtfsCounter, 12 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 706 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 329.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.90ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 392.11ms IncrementalHoareTripleChecker+Time [2021-08-30 17:51:07,077 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 252 Invalid, 708 Unknown, 0 Unchecked, 1.90ms Time], IncrementalHoareTripleChecker [2 Valid, 706 Invalid, 0 Unknown, 0 Unchecked, 392.11ms Time] [2021-08-30 17:51:07,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2021-08-30 17:51:07,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2021-08-30 17:51:07,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 94 states have (on average 1.2234042553191489) internal successors, (115), 111 states have internal predecessors, (115), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-30 17:51:07,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 154 transitions. [2021-08-30 17:51:07,080 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 154 transitions. Word has length 61 [2021-08-30 17:51:07,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:51:07,081 INFO L470 AbstractCegarLoop]: Abstraction has 150 states and 154 transitions. [2021-08-30 17:51:07,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 10 states have internal predecessors, (33), 5 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2021-08-30 17:51:07,081 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 154 transitions. [2021-08-30 17:51:07,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-08-30 17:51:07,082 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:51:07,082 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:51:07,094 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-08-30 17:51:07,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:51:07,295 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_atomic_add_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 17:51:07,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:51:07,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1553235633, now seen corresponding path program 1 times [2021-08-30 17:51:07,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:51:07,296 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1560422148] [2021-08-30 17:51:07,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:51:07,296 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:51:07,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:51:07,297 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:51:07,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-08-30 17:51:07,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:51:07,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 14 conjunts are in the unsatisfiable core [2021-08-30 17:51:07,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:51:07,495 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 [2021-08-30 17:51:07,731 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-30 17:51:07,731 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:51:07,940 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-30 17:51:07,940 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:51:07,940 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1560422148] [2021-08-30 17:51:07,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1560422148] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:51:07,940 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:51:07,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14, 13] imperfect sequences [] total 14 [2021-08-30 17:51:07,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31464741] [2021-08-30 17:51:07,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-30 17:51:07,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:51:07,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-30 17:51:07,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-08-30 17:51:07,942 INFO L87 Difference]: Start difference. First operand 150 states and 154 transitions. Second operand has 15 states, 12 states have (on average 4.5) internal successors, (54), 10 states have internal predecessors, (54), 6 states have call successors, (18), 5 states have call predecessors, (18), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2021-08-30 17:51:08,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:51:08,218 INFO L93 Difference]: Finished difference Result 151 states and 155 transitions. [2021-08-30 17:51:08,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-30 17:51:08,218 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 4.5) internal successors, (54), 10 states have internal predecessors, (54), 6 states have call successors, (18), 5 states have call predecessors, (18), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) Word has length 72 [2021-08-30 17:51:08,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:51:08,219 INFO L225 Difference]: With dead ends: 151 [2021-08-30 17:51:08,219 INFO L226 Difference]: Without dead ends: 151 [2021-08-30 17:51:08,220 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 119 SyntacticMatches, 11 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 183.99ms TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2021-08-30 17:51:08,220 INFO L928 BasicCegarLoop]: 35 mSDtfsCounter, 45 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 186.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.10ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 163 IncrementalHoareTripleChecker+Unchecked, 226.87ms IncrementalHoareTripleChecker+Time [2021-08-30 17:51:08,220 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 56 Invalid, 462 Unknown, 0 Unchecked, 1.10ms Time], IncrementalHoareTripleChecker [1 Valid, 298 Invalid, 0 Unknown, 163 Unchecked, 226.87ms Time] [2021-08-30 17:51:08,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-08-30 17:51:08,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 148. [2021-08-30 17:51:08,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 94 states have (on average 1.202127659574468) internal successors, (113), 109 states have internal predecessors, (113), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-30 17:51:08,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 152 transitions. [2021-08-30 17:51:08,223 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 152 transitions. Word has length 72 [2021-08-30 17:51:08,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:51:08,224 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 152 transitions. [2021-08-30 17:51:08,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 4.5) internal successors, (54), 10 states have internal predecessors, (54), 6 states have call successors, (18), 5 states have call predecessors, (18), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2021-08-30 17:51:08,224 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 152 transitions. [2021-08-30 17:51:08,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-08-30 17:51:08,225 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:51:08,225 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:51:08,235 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-08-30 17:51:08,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:51:08,433 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_atomic_add_returnErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 17:51:08,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:51:08,433 INFO L82 PathProgramCache]: Analyzing trace with hash 1553235634, now seen corresponding path program 1 times [2021-08-30 17:51:08,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:51:08,434 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [559439374] [2021-08-30 17:51:08,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:51:08,434 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:51:08,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:51:08,435 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:51:08,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-08-30 17:51:08,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:51:08,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 28 conjunts are in the unsatisfiable core [2021-08-30 17:51:08,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:51:08,605 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 [2021-08-30 17:51:08,949 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-30 17:51:08,949 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:51:09,967 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-30 17:51:09,968 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:51:09,968 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [559439374] [2021-08-30 17:51:09,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [559439374] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:51:09,968 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:51:09,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15, 14] imperfect sequences [] total 28 [2021-08-30 17:51:09,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766432264] [2021-08-30 17:51:09,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-08-30 17:51:09,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:51:09,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-08-30 17:51:09,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=733, Unknown=0, NotChecked=0, Total=812 [2021-08-30 17:51:09,969 INFO L87 Difference]: Start difference. First operand 148 states and 152 transitions. Second operand has 29 states, 24 states have (on average 2.8333333333333335) internal successors, (68), 19 states have internal predecessors, (68), 10 states have call successors, (21), 8 states have call predecessors, (21), 6 states have return successors, (15), 8 states have call predecessors, (15), 4 states have call successors, (15) [2021-08-30 17:51:12,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:51:12,037 INFO L93 Difference]: Finished difference Result 149 states and 153 transitions. [2021-08-30 17:51:12,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-30 17:51:12,038 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 24 states have (on average 2.8333333333333335) internal successors, (68), 19 states have internal predecessors, (68), 10 states have call successors, (21), 8 states have call predecessors, (21), 6 states have return successors, (15), 8 states have call predecessors, (15), 4 states have call successors, (15) Word has length 72 [2021-08-30 17:51:12,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:51:12,039 INFO L225 Difference]: With dead ends: 149 [2021-08-30 17:51:12,039 INFO L226 Difference]: Without dead ends: 149 [2021-08-30 17:51:12,039 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 113 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 1096.37ms TimeCoverageRelationStatistics Valid=118, Invalid=1072, Unknown=0, NotChecked=0, Total=1190 [2021-08-30 17:51:12,040 INFO L928 BasicCegarLoop]: 33 mSDtfsCounter, 62 mSDsluCounter, 1031 mSDsCounter, 0 mSdLazyCounter, 1184 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1587.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 1368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.06ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 178 IncrementalHoareTripleChecker+Unchecked, 1783.40ms IncrementalHoareTripleChecker+Time [2021-08-30 17:51:12,040 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 316 Invalid, 1368 Unknown, 0 Unchecked, 4.06ms Time], IncrementalHoareTripleChecker [6 Valid, 1184 Invalid, 0 Unknown, 178 Unchecked, 1783.40ms Time] [2021-08-30 17:51:12,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2021-08-30 17:51:12,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 146. [2021-08-30 17:51:12,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 94 states have (on average 1.1808510638297873) internal successors, (111), 107 states have internal predecessors, (111), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-30 17:51:12,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 150 transitions. [2021-08-30 17:51:12,043 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 150 transitions. Word has length 72 [2021-08-30 17:51:12,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:51:12,043 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 150 transitions. [2021-08-30 17:51:12,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 24 states have (on average 2.8333333333333335) internal successors, (68), 19 states have internal predecessors, (68), 10 states have call successors, (21), 8 states have call predecessors, (21), 6 states have return successors, (15), 8 states have call predecessors, (15), 4 states have call successors, (15) [2021-08-30 17:51:12,043 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 150 transitions. [2021-08-30 17:51:12,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-08-30 17:51:12,044 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:51:12,044 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:51:12,056 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-08-30 17:51:12,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:51:12,252 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_atomic_sub_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 17:51:12,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:51:12,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1822676548, now seen corresponding path program 1 times [2021-08-30 17:51:12,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:51:12,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [153990096] [2021-08-30 17:51:12,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:51:12,253 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:51:12,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:51:12,254 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:51:12,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-08-30 17:51:12,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:51:12,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-30 17:51:12,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:51:12,560 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-30 17:51:12,560 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:51:12,737 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-30 17:51:12,738 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:51:12,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [153990096] [2021-08-30 17:51:12,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [153990096] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:51:12,738 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:51:12,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 11 [2021-08-30 17:51:12,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128272058] [2021-08-30 17:51:12,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-30 17:51:12,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:51:12,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-30 17:51:12,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-08-30 17:51:12,739 INFO L87 Difference]: Start difference. First operand 146 states and 150 transitions. Second operand has 11 states, 10 states have (on average 4.4) internal successors, (44), 9 states have internal predecessors, (44), 4 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) [2021-08-30 17:51:13,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:51:13,239 INFO L93 Difference]: Finished difference Result 149 states and 152 transitions. [2021-08-30 17:51:13,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-30 17:51:13,239 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.4) internal successors, (44), 9 states have internal predecessors, (44), 4 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) Word has length 81 [2021-08-30 17:51:13,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:51:13,240 INFO L225 Difference]: With dead ends: 149 [2021-08-30 17:51:13,240 INFO L226 Difference]: Without dead ends: 146 [2021-08-30 17:51:13,240 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 60.34ms TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-08-30 17:51:13,240 INFO L928 BasicCegarLoop]: 38 mSDtfsCounter, 10 mSDsluCounter, 1109 mSDsCounter, 0 mSdLazyCounter, 940 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 387.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.34ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 478.31ms IncrementalHoareTripleChecker+Time [2021-08-30 17:51:13,241 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 369 Invalid, 940 Unknown, 0 Unchecked, 2.34ms Time], IncrementalHoareTripleChecker [0 Valid, 940 Invalid, 0 Unknown, 0 Unchecked, 478.31ms Time] [2021-08-30 17:51:13,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-08-30 17:51:13,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2021-08-30 17:51:13,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 94 states have (on average 1.1702127659574468) internal successors, (110), 106 states have internal predecessors, (110), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-30 17:51:13,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 149 transitions. [2021-08-30 17:51:13,243 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 149 transitions. Word has length 81 [2021-08-30 17:51:13,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:51:13,244 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 149 transitions. [2021-08-30 17:51:13,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.4) internal successors, (44), 9 states have internal predecessors, (44), 4 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) [2021-08-30 17:51:13,244 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 149 transitions. [2021-08-30 17:51:13,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-30 17:51:13,244 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:51:13,245 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:51:13,259 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-08-30 17:51:13,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:51:13,453 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_atomic_sub_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 17:51:13,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:51:13,454 INFO L82 PathProgramCache]: Analyzing trace with hash 1759296345, now seen corresponding path program 1 times [2021-08-30 17:51:13,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:51:13,454 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [765831796] [2021-08-30 17:51:13,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:51:13,454 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:51:13,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:51:13,456 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:51:13,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-08-30 17:51:13,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:51:13,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 22 conjunts are in the unsatisfiable core [2021-08-30 17:51:13,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:51:13,654 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 [2021-08-30 17:51:14,020 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-30 17:51:14,021 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:51:14,299 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-30 17:51:14,299 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:51:14,299 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [765831796] [2021-08-30 17:51:14,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [765831796] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:51:14,300 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:51:14,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16, 15] imperfect sequences [] total 16 [2021-08-30 17:51:14,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379384037] [2021-08-30 17:51:14,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-08-30 17:51:14,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:51:14,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-08-30 17:51:14,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2021-08-30 17:51:14,301 INFO L87 Difference]: Start difference. First operand 146 states and 149 transitions. Second operand has 17 states, 14 states have (on average 5.857142857142857) internal successors, (82), 11 states have internal predecessors, (82), 7 states have call successors, (25), 6 states have call predecessors, (25), 4 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) [2021-08-30 17:51:14,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:51:14,801 INFO L93 Difference]: Finished difference Result 151 states and 154 transitions. [2021-08-30 17:51:14,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-30 17:51:14,802 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 5.857142857142857) internal successors, (82), 11 states have internal predecessors, (82), 7 states have call successors, (25), 6 states have call predecessors, (25), 4 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) Word has length 94 [2021-08-30 17:51:14,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:51:14,803 INFO L225 Difference]: With dead ends: 151 [2021-08-30 17:51:14,803 INFO L226 Difference]: Without dead ends: 151 [2021-08-30 17:51:14,803 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 155 SyntacticMatches, 17 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 276.33ms TimeCoverageRelationStatistics Valid=70, Invalid=392, Unknown=0, NotChecked=0, Total=462 [2021-08-30 17:51:14,804 INFO L928 BasicCegarLoop]: 33 mSDtfsCounter, 39 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 364.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 1072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.34ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 223 IncrementalHoareTripleChecker+Unchecked, 435.95ms IncrementalHoareTripleChecker+Time [2021-08-30 17:51:14,804 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 155 Invalid, 1072 Unknown, 0 Unchecked, 2.34ms Time], IncrementalHoareTripleChecker [4 Valid, 845 Invalid, 0 Unknown, 223 Unchecked, 435.95ms Time] [2021-08-30 17:51:14,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-08-30 17:51:14,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 144. [2021-08-30 17:51:14,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 94 states have (on average 1.148936170212766) internal successors, (108), 104 states have internal predecessors, (108), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-30 17:51:14,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 147 transitions. [2021-08-30 17:51:14,807 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 147 transitions. Word has length 94 [2021-08-30 17:51:14,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:51:14,807 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 147 transitions. [2021-08-30 17:51:14,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 5.857142857142857) internal successors, (82), 11 states have internal predecessors, (82), 7 states have call successors, (25), 6 states have call predecessors, (25), 4 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) [2021-08-30 17:51:14,807 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 147 transitions. [2021-08-30 17:51:14,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-30 17:51:14,808 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:51:14,808 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:51:14,819 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-08-30 17:51:15,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:51:15,020 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_atomic_sub_returnErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 17:51:15,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:51:15,020 INFO L82 PathProgramCache]: Analyzing trace with hash 1759296346, now seen corresponding path program 1 times [2021-08-30 17:51:15,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:51:15,021 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2093526143] [2021-08-30 17:51:15,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:51:15,021 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:51:15,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:51:15,022 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:51:15,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-08-30 17:51:15,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:51:15,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 32 conjunts are in the unsatisfiable core [2021-08-30 17:51:15,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:51:15,232 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 [2021-08-30 17:51:15,721 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-30 17:51:15,721 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:51:17,030 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-30 17:51:17,031 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:51:17,031 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2093526143] [2021-08-30 17:51:17,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2093526143] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:51:17,031 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:51:17,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17, 16] imperfect sequences [] total 32 [2021-08-30 17:51:17,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231945255] [2021-08-30 17:51:17,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-08-30 17:51:17,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:51:17,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-08-30 17:51:17,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=965, Unknown=0, NotChecked=0, Total=1056 [2021-08-30 17:51:17,032 INFO L87 Difference]: Start difference. First operand 144 states and 147 transitions. Second operand has 33 states, 28 states have (on average 3.5) internal successors, (98), 21 states have internal predecessors, (98), 12 states have call successors, (29), 10 states have call predecessors, (29), 6 states have return successors, (21), 10 states have call predecessors, (21), 6 states have call successors, (21) [2021-08-30 17:51:19,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:51:19,258 INFO L93 Difference]: Finished difference Result 144 states and 147 transitions. [2021-08-30 17:51:19,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-30 17:51:19,259 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 28 states have (on average 3.5) internal successors, (98), 21 states have internal predecessors, (98), 12 states have call successors, (29), 10 states have call predecessors, (29), 6 states have return successors, (21), 10 states have call predecessors, (21), 6 states have call successors, (21) Word has length 94 [2021-08-30 17:51:19,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:51:19,260 INFO L225 Difference]: With dead ends: 144 [2021-08-30 17:51:19,260 INFO L226 Difference]: Without dead ends: 144 [2021-08-30 17:51:19,260 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 152 SyntacticMatches, 5 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 336 ImplicationChecksByTransitivity, 1467.41ms TimeCoverageRelationStatistics Valid=139, Invalid=1421, Unknown=0, NotChecked=0, Total=1560 [2021-08-30 17:51:19,260 INFO L928 BasicCegarLoop]: 31 mSDtfsCounter, 62 mSDsluCounter, 971 mSDsCounter, 0 mSdLazyCounter, 1311 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1666.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 1607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.54ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 288 IncrementalHoareTripleChecker+Unchecked, 1868.48ms IncrementalHoareTripleChecker+Time [2021-08-30 17:51:19,261 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 260 Invalid, 1607 Unknown, 0 Unchecked, 8.54ms Time], IncrementalHoareTripleChecker [8 Valid, 1311 Invalid, 0 Unknown, 288 Unchecked, 1868.48ms Time] [2021-08-30 17:51:19,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-08-30 17:51:19,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 142. [2021-08-30 17:51:19,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 94 states have (on average 1.127659574468085) internal successors, (106), 102 states have internal predecessors, (106), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-30 17:51:19,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 145 transitions. [2021-08-30 17:51:19,263 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 145 transitions. Word has length 94 [2021-08-30 17:51:19,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:51:19,264 INFO L470 AbstractCegarLoop]: Abstraction has 142 states and 145 transitions. [2021-08-30 17:51:19,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 28 states have (on average 3.5) internal successors, (98), 21 states have internal predecessors, (98), 12 states have call successors, (29), 10 states have call predecessors, (29), 6 states have return successors, (21), 10 states have call predecessors, (21), 6 states have call successors, (21) [2021-08-30 17:51:19,264 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 145 transitions. [2021-08-30 17:51:19,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-08-30 17:51:19,265 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:51:19,265 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:51:19,278 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-08-30 17:51:19,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:51:19,474 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 17:51:19,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:51:19,474 INFO L82 PathProgramCache]: Analyzing trace with hash -207269007, now seen corresponding path program 1 times [2021-08-30 17:51:19,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:51:19,474 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [57204048] [2021-08-30 17:51:19,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:51:19,475 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:51:19,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:51:19,476 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:51:19,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-08-30 17:51:19,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:51:19,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-30 17:51:19,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:51:19,794 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-30 17:51:19,794 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:51:20,071 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-30 17:51:20,071 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:51:20,071 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [57204048] [2021-08-30 17:51:20,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [57204048] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:51:20,071 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:51:20,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 11 [2021-08-30 17:51:20,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190639566] [2021-08-30 17:51:20,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-30 17:51:20,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:51:20,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-30 17:51:20,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-08-30 17:51:20,072 INFO L87 Difference]: Start difference. First operand 142 states and 145 transitions. Second operand has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 3 states have call successors, (13) [2021-08-30 17:51:20,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:51:20,498 INFO L93 Difference]: Finished difference Result 144 states and 146 transitions. [2021-08-30 17:51:20,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-30 17:51:20,499 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 3 states have call successors, (13) Word has length 92 [2021-08-30 17:51:20,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:51:20,500 INFO L225 Difference]: With dead ends: 144 [2021-08-30 17:51:20,500 INFO L226 Difference]: Without dead ends: 142 [2021-08-30 17:51:20,500 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 52.29ms TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-08-30 17:51:20,500 INFO L928 BasicCegarLoop]: 38 mSDtfsCounter, 13 mSDsluCounter, 954 mSDsCounter, 0 mSdLazyCounter, 803 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 338.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.92ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 405.27ms IncrementalHoareTripleChecker+Time [2021-08-30 17:51:20,500 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 333 Invalid, 804 Unknown, 0 Unchecked, 1.92ms Time], IncrementalHoareTripleChecker [1 Valid, 803 Invalid, 0 Unknown, 0 Unchecked, 405.27ms Time] [2021-08-30 17:51:20,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-08-30 17:51:20,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2021-08-30 17:51:20,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 94 states have (on average 1.1170212765957446) internal successors, (105), 102 states have internal predecessors, (105), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-30 17:51:20,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 144 transitions. [2021-08-30 17:51:20,503 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 144 transitions. Word has length 92 [2021-08-30 17:51:20,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:51:20,503 INFO L470 AbstractCegarLoop]: Abstraction has 142 states and 144 transitions. [2021-08-30 17:51:20,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 3 states have call successors, (13) [2021-08-30 17:51:20,503 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 144 transitions. [2021-08-30 17:51:20,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-08-30 17:51:20,504 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:51:20,504 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:51:20,529 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-08-30 17:51:20,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:51:20,714 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_kobject_cleanupErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 17:51:20,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:51:20,714 INFO L82 PathProgramCache]: Analyzing trace with hash -889618677, now seen corresponding path program 1 times [2021-08-30 17:51:20,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:51:20,715 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [924968924] [2021-08-30 17:51:20,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:51:20,715 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:51:20,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:51:20,715 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:51:20,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-08-30 17:51:20,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:51:20,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 34 conjunts are in the unsatisfiable core [2021-08-30 17:51:20,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:51:20,944 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 [2021-08-30 17:51:21,431 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-30 17:51:21,431 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:51:21,771 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-30 17:51:21,772 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:51:21,772 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [924968924] [2021-08-30 17:51:21,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [924968924] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:51:21,772 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:51:21,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20, 19] imperfect sequences [] total 20 [2021-08-30 17:51:21,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542287508] [2021-08-30 17:51:21,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-08-30 17:51:21,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:51:21,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-08-30 17:51:21,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2021-08-30 17:51:21,773 INFO L87 Difference]: Start difference. First operand 142 states and 144 transitions. Second operand has 21 states, 17 states have (on average 5.705882352941177) internal successors, (97), 13 states have internal predecessors, (97), 9 states have call successors, (29), 8 states have call predecessors, (29), 4 states have return successors, (21), 7 states have call predecessors, (21), 5 states have call successors, (21) [2021-08-30 17:51:22,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:51:22,206 INFO L93 Difference]: Finished difference Result 142 states and 144 transitions. [2021-08-30 17:51:22,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-30 17:51:22,206 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 17 states have (on average 5.705882352941177) internal successors, (97), 13 states have internal predecessors, (97), 9 states have call successors, (29), 8 states have call predecessors, (29), 4 states have return successors, (21), 7 states have call predecessors, (21), 5 states have call successors, (21) Word has length 107 [2021-08-30 17:51:22,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:51:22,207 INFO L225 Difference]: With dead ends: 142 [2021-08-30 17:51:22,207 INFO L226 Difference]: Without dead ends: 142 [2021-08-30 17:51:22,207 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 173 SyntacticMatches, 21 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 435.45ms TimeCoverageRelationStatistics Valid=92, Invalid=664, Unknown=0, NotChecked=0, Total=756 [2021-08-30 17:51:22,208 INFO L928 BasicCegarLoop]: 35 mSDtfsCounter, 43 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 279.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.94ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 258 IncrementalHoareTripleChecker+Unchecked, 331.34ms IncrementalHoareTripleChecker+Time [2021-08-30 17:51:22,208 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 116 Invalid, 972 Unknown, 0 Unchecked, 1.94ms Time], IncrementalHoareTripleChecker [1 Valid, 713 Invalid, 0 Unknown, 258 Unchecked, 331.34ms Time] [2021-08-30 17:51:22,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-08-30 17:51:22,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 140. [2021-08-30 17:51:22,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 94 states have (on average 1.0957446808510638) internal successors, (103), 100 states have internal predecessors, (103), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-30 17:51:22,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 142 transitions. [2021-08-30 17:51:22,210 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 142 transitions. Word has length 107 [2021-08-30 17:51:22,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:51:22,211 INFO L470 AbstractCegarLoop]: Abstraction has 140 states and 142 transitions. [2021-08-30 17:51:22,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 17 states have (on average 5.705882352941177) internal successors, (97), 13 states have internal predecessors, (97), 9 states have call successors, (29), 8 states have call predecessors, (29), 4 states have return successors, (21), 7 states have call predecessors, (21), 5 states have call successors, (21) [2021-08-30 17:51:22,211 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 142 transitions. [2021-08-30 17:51:22,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-08-30 17:51:22,211 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:51:22,212 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:51:22,233 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-08-30 17:51:22,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:51:22,433 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_kobject_cleanupErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 17:51:22,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:51:22,433 INFO L82 PathProgramCache]: Analyzing trace with hash -889618676, now seen corresponding path program 1 times [2021-08-30 17:51:22,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:51:22,433 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1607838950] [2021-08-30 17:51:22,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:51:22,434 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:51:22,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:51:22,434 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:51:22,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-08-30 17:51:22,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:51:22,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 44 conjunts are in the unsatisfiable core [2021-08-30 17:51:22,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:51:22,668 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 [2021-08-30 17:51:23,311 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-30 17:51:23,311 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:51:25,076 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-30 17:51:25,076 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:51:25,076 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1607838950] [2021-08-30 17:51:25,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1607838950] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:51:25,077 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:51:25,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21, 20] imperfect sequences [] total 40 [2021-08-30 17:51:25,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847874004] [2021-08-30 17:51:25,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-08-30 17:51:25,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:51:25,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-08-30 17:51:25,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1525, Unknown=0, NotChecked=0, Total=1640 [2021-08-30 17:51:25,078 INFO L87 Difference]: Start difference. First operand 140 states and 142 transitions. Second operand has 41 states, 34 states have (on average 3.411764705882353) internal successors, (116), 25 states have internal predecessors, (116), 16 states have call successors, (35), 14 states have call predecessors, (35), 6 states have return successors, (23), 12 states have call predecessors, (23), 8 states have call successors, (23) [2021-08-30 17:51:27,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:51:27,900 INFO L93 Difference]: Finished difference Result 138 states and 140 transitions. [2021-08-30 17:51:27,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-30 17:51:27,900 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 34 states have (on average 3.411764705882353) internal successors, (116), 25 states have internal predecessors, (116), 16 states have call successors, (35), 14 states have call predecessors, (35), 6 states have return successors, (23), 12 states have call predecessors, (23), 8 states have call successors, (23) Word has length 107 [2021-08-30 17:51:27,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:51:27,901 INFO L225 Difference]: With dead ends: 138 [2021-08-30 17:51:27,901 INFO L226 Difference]: Without dead ends: 138 [2021-08-30 17:51:27,902 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 169 SyntacticMatches, 7 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 568 ImplicationChecksByTransitivity, 2216.48ms TimeCoverageRelationStatistics Valid=184, Invalid=2366, Unknown=0, NotChecked=0, Total=2550 [2021-08-30 17:51:27,902 INFO L928 BasicCegarLoop]: 28 mSDtfsCounter, 99 mSDsluCounter, 890 mSDsCounter, 0 mSdLazyCounter, 1613 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1981.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 1911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.83ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 285 IncrementalHoareTripleChecker+Unchecked, 2226.26ms IncrementalHoareTripleChecker+Time [2021-08-30 17:51:27,902 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 197 Invalid, 1911 Unknown, 0 Unchecked, 4.83ms Time], IncrementalHoareTripleChecker [13 Valid, 1613 Invalid, 0 Unknown, 285 Unchecked, 2226.26ms Time] [2021-08-30 17:51:27,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2021-08-30 17:51:27,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2021-08-30 17:51:27,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 94 states have (on average 1.074468085106383) internal successors, (101), 98 states have internal predecessors, (101), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-30 17:51:27,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 140 transitions. [2021-08-30 17:51:27,905 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 140 transitions. Word has length 107 [2021-08-30 17:51:27,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:51:27,905 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 140 transitions. [2021-08-30 17:51:27,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 34 states have (on average 3.411764705882353) internal successors, (116), 25 states have internal predecessors, (116), 16 states have call successors, (35), 14 states have call predecessors, (35), 6 states have return successors, (23), 12 states have call predecessors, (23), 8 states have call successors, (23) [2021-08-30 17:51:27,906 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 140 transitions. [2021-08-30 17:51:27,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-08-30 17:51:27,906 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:51:27,906 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:51:27,915 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-08-30 17:51:28,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:51:28,107 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 17:51:28,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:51:28,107 INFO L82 PathProgramCache]: Analyzing trace with hash 1613444290, now seen corresponding path program 1 times [2021-08-30 17:51:28,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:51:28,108 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1602898902] [2021-08-30 17:51:28,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:51:28,108 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:51:28,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:51:28,109 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:51:28,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-08-30 17:51:28,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:51:28,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 23 conjunts are in the unsatisfiable core [2021-08-30 17:51:28,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:51:29,298 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-30 17:51:29,298 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:51:29,942 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-30 17:51:29,942 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:51:29,942 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1602898902] [2021-08-30 17:51:29,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1602898902] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:51:29,942 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:51:29,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21, 19] imperfect sequences [] total 39 [2021-08-30 17:51:29,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75905757] [2021-08-30 17:51:29,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-08-30 17:51:29,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:51:29,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-08-30 17:51:29,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1410, Unknown=0, NotChecked=0, Total=1560 [2021-08-30 17:51:29,944 INFO L87 Difference]: Start difference. First operand 138 states and 140 transitions. Second operand has 40 states, 33 states have (on average 3.8181818181818183) internal successors, (126), 24 states have internal predecessors, (126), 17 states have call successors, (39), 15 states have call predecessors, (39), 7 states have return successors, (24), 13 states have call predecessors, (24), 9 states have call successors, (24) [2021-08-30 17:51:31,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:51:31,411 INFO L93 Difference]: Finished difference Result 137 states and 139 transitions. [2021-08-30 17:51:31,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-08-30 17:51:31,412 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 33 states have (on average 3.8181818181818183) internal successors, (126), 24 states have internal predecessors, (126), 17 states have call successors, (39), 15 states have call predecessors, (39), 7 states have return successors, (24), 13 states have call predecessors, (24), 9 states have call successors, (24) Word has length 110 [2021-08-30 17:51:31,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:51:31,412 INFO L225 Difference]: With dead ends: 137 [2021-08-30 17:51:31,412 INFO L226 Difference]: Without dead ends: 137 [2021-08-30 17:51:31,413 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 174 SyntacticMatches, 7 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 495 ImplicationChecksByTransitivity, 1090.55ms TimeCoverageRelationStatistics Valid=206, Invalid=1956, Unknown=0, NotChecked=0, Total=2162 [2021-08-30 17:51:31,413 INFO L928 BasicCegarLoop]: 29 mSDtfsCounter, 79 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 1914 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 985.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 2145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.32ms SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 206 IncrementalHoareTripleChecker+Unchecked, 1185.93ms IncrementalHoareTripleChecker+Time [2021-08-30 17:51:31,413 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 47 Invalid, 2145 Unknown, 0 Unchecked, 4.32ms Time], IncrementalHoareTripleChecker [25 Valid, 1914 Invalid, 0 Unknown, 206 Unchecked, 1185.93ms Time] [2021-08-30 17:51:31,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-08-30 17:51:31,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2021-08-30 17:51:31,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 94 states have (on average 1.0638297872340425) internal successors, (100), 97 states have internal predecessors, (100), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-30 17:51:31,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 139 transitions. [2021-08-30 17:51:31,416 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 139 transitions. Word has length 110 [2021-08-30 17:51:31,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:51:31,416 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 139 transitions. [2021-08-30 17:51:31,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 33 states have (on average 3.8181818181818183) internal successors, (126), 24 states have internal predecessors, (126), 17 states have call successors, (39), 15 states have call predecessors, (39), 7 states have return successors, (24), 13 states have call predecessors, (24), 9 states have call successors, (24) [2021-08-30 17:51:31,416 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 139 transitions. [2021-08-30 17:51:31,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-08-30 17:51:31,417 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:51:31,417 INFO L513 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:51:31,430 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (27)] Ended with exit code 0 [2021-08-30 17:51:31,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:51:31,625 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 17:51:31,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:51:31,626 INFO L82 PathProgramCache]: Analyzing trace with hash 1140166607, now seen corresponding path program 1 times [2021-08-30 17:51:31,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:51:31,626 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1756575945] [2021-08-30 17:51:31,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:51:31,627 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:51:31,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:51:31,627 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:51:31,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-08-30 17:51:31,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:51:31,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 86 conjunts are in the unsatisfiable core [2021-08-30 17:51:31,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:51:32,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:51:32,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:51:32,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:51:32,058 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-30 17:51:32,059 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-30 17:51:32,089 INFO L354 Elim1Store]: treesize reduction 166, result has 13.5 percent of original size [2021-08-30 17:51:32,091 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 3 case distinctions, treesize of input 30 treesize of output 36 [2021-08-30 17:51:33,121 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_DerPreprocessor_1 (_ BitVec 8))) (= (store |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (let ((.cse0 (bvadd (_ bv4 32) |c_LDV_INIT_LIST_HEAD_#in~list.offset|))) (store (store (select |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base|) |c_LDV_INIT_LIST_HEAD_#in~list.offset| v_DerPreprocessor_1) .cse0 (select (select |c_#memory_int| |c_LDV_INIT_LIST_HEAD_#in~list.base|) .cse0)))) |c_#memory_int|)) is different from true [2021-08-30 17:51:33,218 INFO L354 Elim1Store]: treesize reduction 360, result has 11.3 percent of original size [2021-08-30 17:51:33,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 62 treesize of output 59 [2021-08-30 17:51:34,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:51:34,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:51:34,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:51:34,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:51:34,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:51:34,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:51:34,470 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-30 17:51:34,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:51:34,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:51:34,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:51:34,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:51:34,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:51:34,475 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-30 17:51:34,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:51:34,476 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-30 17:51:34,476 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-30 17:51:34,483 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-30 17:51:34,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 190 treesize of output 162 [2021-08-30 17:51:35,617 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-30 17:51:35,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 96 treesize of output 64 [2021-08-30 17:51:35,705 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-30 17:51:35,705 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:51:38,903 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 1172 treesize of output 1062 [2021-08-30 17:51:38,925 INFO L354 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2021-08-30 17:51:38,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 33149 treesize of output 16765 [2021-08-30 17:52:03,636 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ldv_kobject_get_#in~kobj.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ldv_kobject_get_#in~kobj.offset_BEFORE_CALL_2| (_ BitVec 32))) (let ((.cse1 (bvadd |v_ldv_kobject_get_#in~kobj.offset_BEFORE_CALL_2| (_ bv15 32))) (.cse2 (bvadd |v_ldv_kobject_get_#in~kobj.offset_BEFORE_CALL_2| (_ bv14 32))) (.cse3 (bvadd |v_ldv_kobject_get_#in~kobj.offset_BEFORE_CALL_2| (_ bv13 32))) (.cse4 (bvadd |v_ldv_kobject_get_#in~kobj.offset_BEFORE_CALL_2| (_ bv12 32)))) (or (not (= (_ bv1 32) (let ((.cse0 (select (store |c_#memory_int| c_ldv_kref_get_~kref.base (let ((.cse9 (bvadd c_ldv_kref_get_~kref.offset (_ bv3 32))) (.cse8 (bvadd c_ldv_kref_get_~kref.offset (_ bv2 32))) (.cse7 (bvadd c_ldv_kref_get_~kref.offset (_ bv1 32))) (.cse5 (select |c_#memory_int| c_ldv_kref_get_~kref.base))) (let ((.cse6 (bvadd (concat (concat (concat (select .cse5 .cse9) (select .cse5 .cse8)) (select .cse5 .cse7)) (select .cse5 c_ldv_kref_get_~kref.offset)) (_ bv1 32)))) (store (store (store (store .cse5 c_ldv_kref_get_~kref.offset ((_ extract 7 0) .cse6)) .cse7 ((_ extract 15 8) .cse6)) .cse8 ((_ extract 23 16) .cse6)) .cse9 ((_ extract 31 24) .cse6))))) |v_ldv_kobject_get_#in~kobj.base_BEFORE_CALL_2|))) (concat (concat (concat (select .cse0 .cse1) (select .cse0 .cse2)) (select .cse0 .cse3)) (select .cse0 .cse4))))) (= (let ((.cse10 (select (store |c_old(#memory_int)| |c_ldv_kref_get_#in~kref.base| (let ((.cse15 (bvadd |c_ldv_kref_get_#in~kref.offset| (_ bv3 32))) (.cse14 (bvadd |c_ldv_kref_get_#in~kref.offset| (_ bv2 32))) (.cse13 (bvadd |c_ldv_kref_get_#in~kref.offset| (_ bv1 32))) (.cse11 (select |c_old(#memory_int)| |c_ldv_kref_get_#in~kref.base|))) (let ((.cse12 (bvadd (_ bv1 32) (concat (concat (concat (select .cse11 .cse15) (select .cse11 .cse14)) (select .cse11 .cse13)) (select .cse11 |c_ldv_kref_get_#in~kref.offset|))))) (store (store (store (store .cse11 |c_ldv_kref_get_#in~kref.offset| ((_ extract 7 0) .cse12)) .cse13 ((_ extract 15 8) .cse12)) .cse14 ((_ extract 23 16) .cse12)) .cse15 ((_ extract 31 24) .cse12))))) |v_ldv_kobject_get_#in~kobj.base_BEFORE_CALL_2|))) (concat (concat (concat (select .cse10 .cse1) (select .cse10 .cse2)) (select .cse10 .cse3)) (select .cse10 .cse4))) (_ bv1 32))))) is different from false [2021-08-30 17:52:03,680 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:52:03,680 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1756575945] [2021-08-30 17:52:03,681 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-30 17:52:03,681 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1014117663] [2021-08-30 17:52:03,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:52:03,681 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-08-30 17:52:03,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2021-08-30 17:52:03,682 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-08-30 17:52:03,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2021-08-30 17:52:04,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:52:04,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 130 conjunts are in the unsatisfiable core [2021-08-30 17:52:04,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:52:04,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-08-30 17:52:04,514 INFO L354 Elim1Store]: treesize reduction 23, result has 23.3 percent of original size [2021-08-30 17:52:04,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2021-08-30 17:52:04,691 INFO L354 Elim1Store]: treesize reduction 60, result has 22.1 percent of original size [2021-08-30 17:52:04,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 38 [2021-08-30 17:52:04,888 INFO L354 Elim1Store]: treesize reduction 110, result has 19.1 percent of original size [2021-08-30 17:52:04,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 47 treesize of output 52 [2021-08-30 17:52:05,136 INFO L354 Elim1Store]: treesize reduction 172, result has 16.9 percent of original size [2021-08-30 17:52:05,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 58 treesize of output 66 [2021-08-30 17:52:05,443 INFO L354 Elim1Store]: treesize reduction 246, result has 15.2 percent of original size [2021-08-30 17:52:05,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 69 treesize of output 80 [2021-08-30 17:52:05,811 INFO L354 Elim1Store]: treesize reduction 332, result has 13.8 percent of original size [2021-08-30 17:52:05,812 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 80 treesize of output 94 [2021-08-30 17:52:06,255 INFO L354 Elim1Store]: treesize reduction 444, result has 12.3 percent of original size [2021-08-30 17:52:06,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 92 treesize of output 109 [2021-08-30 17:52:06,791 INFO L354 Elim1Store]: treesize reduction 566, result has 11.3 percent of original size [2021-08-30 17:52:06,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 104 treesize of output 124 [2021-08-30 17:52:07,468 INFO L354 Elim1Store]: treesize reduction 702, result has 10.5 percent of original size [2021-08-30 17:52:07,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 45 case distinctions, treesize of input 116 treesize of output 139 [2021-08-30 17:52:08,200 INFO L354 Elim1Store]: treesize reduction 796, result has 10.1 percent of original size [2021-08-30 17:52:08,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 55 case distinctions, treesize of input 124 treesize of output 150 [2021-08-30 17:52:09,022 INFO L354 Elim1Store]: treesize reduction 942, result has 9.4 percent of original size [2021-08-30 17:52:09,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 66 case distinctions, treesize of input 135 treesize of output 164 [2021-08-30 17:52:09,975 INFO L354 Elim1Store]: treesize reduction 1100, result has 8.9 percent of original size [2021-08-30 17:52:09,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 78 case distinctions, treesize of input 146 treesize of output 178 [2021-08-30 17:52:11,059 INFO L354 Elim1Store]: treesize reduction 1296, result has 8.2 percent of original size [2021-08-30 17:52:11,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 91 case distinctions, treesize of input 158 treesize of output 193 [2021-08-30 17:52:12,334 INFO L354 Elim1Store]: treesize reduction 1496, result has 7.8 percent of original size [2021-08-30 17:52:12,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 105 case distinctions, treesize of input 170 treesize of output 208 [2021-08-30 17:52:13,749 INFO L354 Elim1Store]: treesize reduction 1646, result has 7.5 percent of original size [2021-08-30 17:52:13,749 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 0 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 120 case distinctions, treesize of input 179 treesize of output 220 [2021-08-30 17:52:19,580 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_internal_#in~kobj.base| (let ((.cse0 (bvadd (_ bv4 32) |c_ldv_kobject_init_internal_#in~kobj.offset|))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_internal_#in~kobj.base|) (bvadd |c_ldv_kobject_init_internal_#in~kobj.offset| (_ bv12 32)) v_DerPreprocessor_2) (bvadd (_ bv13 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_3) (bvadd (_ bv14 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_4) (bvadd (_ bv15 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_5) .cse0 .cse0) (bvadd (_ bv8 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) .cse0))))) is different from true [2021-08-30 17:52:21,607 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_#in~kobj.base| (let ((.cse0 (bvadd (_ bv4 32) |c_ldv_kobject_init_#in~kobj.offset|))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_#in~kobj.base|) (bvadd |c_ldv_kobject_init_#in~kobj.offset| (_ bv12 32)) v_DerPreprocessor_2) (bvadd (_ bv13 32) |c_ldv_kobject_init_#in~kobj.offset|) v_DerPreprocessor_3) (bvadd (_ bv14 32) |c_ldv_kobject_init_#in~kobj.offset|) v_DerPreprocessor_4) (bvadd |c_ldv_kobject_init_#in~kobj.offset| (_ bv15 32)) v_DerPreprocessor_5) .cse0 .cse0) (bvadd (_ bv8 32) |c_ldv_kobject_init_#in~kobj.offset|) .cse0))))) is different from true [2021-08-30 17:52:21,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:21,733 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-30 17:52:21,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 120 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 185 treesize of output 195 [2021-08-30 17:52:25,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:25,921 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-30 17:52:25,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 120 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 137 treesize of output 121 [2021-08-30 17:52:29,040 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-30 17:52:29,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 120 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 121 treesize of output 121 [2021-08-30 17:52:31,689 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-30 17:52:31,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 13 select indices, 13 select index equivalence classes, 66 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 78 case distinctions, treesize of input 92 treesize of output 136 [2021-08-30 17:52:32,676 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:52:32,676 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:52:47,070 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-30 17:52:47,070 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1317001185] [2021-08-30 17:52:47,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:52:47,070 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 17:52:47,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 17:52:47,071 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-30 17:52:47,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-08-30 17:52:47,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:52:47,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 86 conjunts are in the unsatisfiable core [2021-08-30 17:52:47,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:52:47,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:47,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:47,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:47,354 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-30 17:52:47,355 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-30 17:52:47,391 INFO L354 Elim1Store]: treesize reduction 166, result has 13.5 percent of original size [2021-08-30 17:52:47,392 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 3 case distinctions, treesize of input 30 treesize of output 36 [2021-08-30 17:52:48,458 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_DerPreprocessor_22 (_ BitVec 8))) (= |c_#memory_int| (store |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (let ((.cse0 (bvadd (_ bv4 32) |c_LDV_INIT_LIST_HEAD_#in~list.offset|))) (store (store (select |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base|) |c_LDV_INIT_LIST_HEAD_#in~list.offset| v_DerPreprocessor_22) .cse0 (select (select |c_#memory_int| |c_LDV_INIT_LIST_HEAD_#in~list.base|) .cse0)))))) is different from true [2021-08-30 17:52:48,545 INFO L354 Elim1Store]: treesize reduction 360, result has 11.3 percent of original size [2021-08-30 17:52:48,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 62 treesize of output 59 [2021-08-30 17:52:48,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:48,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:48,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:48,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:48,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:48,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:48,868 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-30 17:52:48,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:48,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:48,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:48,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:48,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:48,872 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-30 17:52:48,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-30 17:52:48,873 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-30 17:52:48,874 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-30 17:52:48,882 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-30 17:52:48,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 190 treesize of output 162 [2021-08-30 17:52:49,130 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-30 17:52:49,130 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 96 treesize of output 64 [2021-08-30 17:52:49,149 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-30 17:52:49,149 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:52:49,951 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 1172 treesize of output 1062 [2021-08-30 17:52:49,968 INFO L354 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2021-08-30 17:52:49,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65661 treesize of output 32893 [2021-08-30 17:53:23,410 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-30 17:53:23,411 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:53:23,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-08-30 17:53:23,411 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-08-30 17:53:23,411 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-08-30 17:53:23,414 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE (70 of 71 remaining) [2021-08-30 17:53:23,415 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION (69 of 71 remaining) [2021-08-30 17:53:23,415 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION (68 of 71 remaining) [2021-08-30 17:53:23,415 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION (67 of 71 remaining) [2021-08-30 17:53:23,416 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION (66 of 71 remaining) [2021-08-30 17:53:23,416 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION (65 of 71 remaining) [2021-08-30 17:53:23,416 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION (64 of 71 remaining) [2021-08-30 17:53:23,416 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION (63 of 71 remaining) [2021-08-30 17:53:23,416 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION (62 of 71 remaining) [2021-08-30 17:53:23,416 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION (61 of 71 remaining) [2021-08-30 17:53:23,416 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION (60 of 71 remaining) [2021-08-30 17:53:23,416 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION (59 of 71 remaining) [2021-08-30 17:53:23,417 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION (58 of 71 remaining) [2021-08-30 17:53:23,417 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION (57 of 71 remaining) [2021-08-30 17:53:23,417 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION (56 of 71 remaining) [2021-08-30 17:53:23,417 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION (55 of 71 remaining) [2021-08-30 17:53:23,417 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION (54 of 71 remaining) [2021-08-30 17:53:23,417 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION (53 of 71 remaining) [2021-08-30 17:53:23,417 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION (52 of 71 remaining) [2021-08-30 17:53:23,417 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION (51 of 71 remaining) [2021-08-30 17:53:23,418 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION (50 of 71 remaining) [2021-08-30 17:53:23,418 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION (49 of 71 remaining) [2021-08-30 17:53:23,418 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION (48 of 71 remaining) [2021-08-30 17:53:23,418 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION (47 of 71 remaining) [2021-08-30 17:53:23,418 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION (46 of 71 remaining) [2021-08-30 17:53:23,418 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION (45 of 71 remaining) [2021-08-30 17:53:23,418 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION (44 of 71 remaining) [2021-08-30 17:53:23,418 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION (43 of 71 remaining) [2021-08-30 17:53:23,418 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION (42 of 71 remaining) [2021-08-30 17:53:23,418 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION (41 of 71 remaining) [2021-08-30 17:53:23,418 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION (40 of 71 remaining) [2021-08-30 17:53:23,418 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION (39 of 71 remaining) [2021-08-30 17:53:23,418 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION (38 of 71 remaining) [2021-08-30 17:53:23,419 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION (37 of 71 remaining) [2021-08-30 17:53:23,419 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION (36 of 71 remaining) [2021-08-30 17:53:23,419 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION (35 of 71 remaining) [2021-08-30 17:53:23,419 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION (34 of 71 remaining) [2021-08-30 17:53:23,419 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION (33 of 71 remaining) [2021-08-30 17:53:23,419 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION (32 of 71 remaining) [2021-08-30 17:53:23,419 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION (31 of 71 remaining) [2021-08-30 17:53:23,419 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION (30 of 71 remaining) [2021-08-30 17:53:23,419 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION (29 of 71 remaining) [2021-08-30 17:53:23,419 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION (28 of 71 remaining) [2021-08-30 17:53:23,419 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE (27 of 71 remaining) [2021-08-30 17:53:23,419 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE (26 of 71 remaining) [2021-08-30 17:53:23,419 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE (25 of 71 remaining) [2021-08-30 17:53:23,419 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE (24 of 71 remaining) [2021-08-30 17:53:23,419 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE (23 of 71 remaining) [2021-08-30 17:53:23,420 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE (22 of 71 remaining) [2021-08-30 17:53:23,420 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK (21 of 71 remaining) [2021-08-30 17:53:23,420 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION (20 of 71 remaining) [2021-08-30 17:53:23,420 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION (19 of 71 remaining) [2021-08-30 17:53:23,420 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION (18 of 71 remaining) [2021-08-30 17:53:23,420 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION (17 of 71 remaining) [2021-08-30 17:53:23,420 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION (16 of 71 remaining) [2021-08-30 17:53:23,420 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION (15 of 71 remaining) [2021-08-30 17:53:23,420 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION (14 of 71 remaining) [2021-08-30 17:53:23,420 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION (13 of 71 remaining) [2021-08-30 17:53:23,420 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE (12 of 71 remaining) [2021-08-30 17:53:23,420 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE (11 of 71 remaining) [2021-08-30 17:53:23,420 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE (10 of 71 remaining) [2021-08-30 17:53:23,420 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE (9 of 71 remaining) [2021-08-30 17:53:23,420 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE (8 of 71 remaining) [2021-08-30 17:53:23,421 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION (7 of 71 remaining) [2021-08-30 17:53:23,421 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION (6 of 71 remaining) [2021-08-30 17:53:23,421 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION (5 of 71 remaining) [2021-08-30 17:53:23,421 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION (4 of 71 remaining) [2021-08-30 17:53:23,421 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION (3 of 71 remaining) [2021-08-30 17:53:23,421 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION (2 of 71 remaining) [2021-08-30 17:53:23,421 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION (1 of 71 remaining) [2021-08-30 17:53:23,421 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION (0 of 71 remaining) [2021-08-30 17:53:23,426 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (29)] Forceful destruction successful, exit code 0 [2021-08-30 17:53:23,640 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2021-08-30 17:53:23,833 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (28)] Ended with exit code 0 [2021-08-30 17:53:24,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:53:24,026 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-30 17:53:24,028 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-08-30 17:53:24,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 05:53:24 BoogieIcfgContainer [2021-08-30 17:53:24,035 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-30 17:53:24,036 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-30 17:53:24,036 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-30 17:53:24,036 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-30 17:53:24,036 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:50:43" (3/4) ... [2021-08-30 17:53:24,038 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-30 17:53:24,038 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-30 17:53:24,039 INFO L158 Benchmark]: Toolchain (without parser) took 161822.77ms. Allocated memory was 67.1MB in the beginning and 125.8MB in the end (delta: 58.7MB). Free memory was 46.3MB in the beginning and 64.9MB in the end (delta: -18.6MB). Peak memory consumption was 40.1MB. Max. memory is 16.1GB. [2021-08-30 17:53:24,039 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 67.1MB. Free memory was 48.3MB in the beginning and 48.3MB in the end (delta: 32.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 17:53:24,040 INFO L158 Benchmark]: CACSL2BoogieTranslator took 435.87ms. Allocated memory is still 67.1MB. Free memory was 46.2MB in the beginning and 32.5MB in the end (delta: 13.7MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2021-08-30 17:53:24,040 INFO L158 Benchmark]: Boogie Preprocessor took 88.95ms. Allocated memory is still 67.1MB. Free memory was 32.5MB in the beginning and 47.1MB in the end (delta: -14.6MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2021-08-30 17:53:24,044 INFO L158 Benchmark]: RCFGBuilder took 613.66ms. Allocated memory was 67.1MB in the beginning and 86.0MB in the end (delta: 18.9MB). Free memory was 47.1MB in the beginning and 49.4MB in the end (delta: -2.3MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. [2021-08-30 17:53:24,044 INFO L158 Benchmark]: TraceAbstraction took 160677.53ms. Allocated memory was 86.0MB in the beginning and 125.8MB in the end (delta: 39.8MB). Free memory was 49.0MB in the beginning and 64.9MB in the end (delta: -15.9MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. [2021-08-30 17:53:24,044 INFO L158 Benchmark]: Witness Printer took 2.63ms. Allocated memory is still 125.8MB. Free memory is still 64.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 17:53:24,048 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 67.1MB. Free memory was 48.3MB in the beginning and 48.3MB in the end (delta: 32.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 435.87ms. Allocated memory is still 67.1MB. Free memory was 46.2MB in the beginning and 32.5MB in the end (delta: 13.7MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 88.95ms. Allocated memory is still 67.1MB. Free memory was 32.5MB in the beginning and 47.1MB in the end (delta: -14.6MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. * RCFGBuilder took 613.66ms. Allocated memory was 67.1MB in the beginning and 86.0MB in the end (delta: 18.9MB). Free memory was 47.1MB in the beginning and 49.4MB in the end (delta: -2.3MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. * TraceAbstraction took 160677.53ms. Allocated memory was 86.0MB in the beginning and 125.8MB in the end (delta: 39.8MB). Free memory was 49.0MB in the beginning and 64.9MB in the end (delta: -15.9MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. * Witness Printer took 2.63ms. Allocated memory is still 125.8MB. Free memory is still 64.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L764] CALL entry_point() [L758] struct ldv_kobject *kobj; [L759] CALL, EXPR ldv_kobject_create() [L740] struct ldv_kobject *kobj; [L741] CALL, EXPR ldv_malloc(sizeof(*kobj)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L741] RET, EXPR ldv_malloc(sizeof(*kobj)) [L741] kobj = ldv_malloc(sizeof(*kobj)) [L742] COND FALSE !(!kobj) [L744] FCALL memset(kobj, 0, sizeof(*kobj)) [L745] CALL ldv_kobject_init(kobj) [L730] COND FALSE !(!kobj) [L733] CALL ldv_kobject_init_internal(kobj) [L723] COND FALSE !(!kobj) [L725] CALL ldv_kref_init(&kobj->kref) [L682] ((&kref->refcount)->counter) = (1) [L725] RET ldv_kref_init(&kobj->kref) [L726] CALL LDV_INIT_LIST_HEAD(&kobj->entry) [L540] list->next = list [L541] list->prev = list [L726] RET LDV_INIT_LIST_HEAD(&kobj->entry) [L733] RET ldv_kobject_init_internal(kobj) [L745] RET ldv_kobject_init(kobj) [L746] return kobj; [L759] RET, EXPR ldv_kobject_create() [L759] kobj = ldv_kobject_create() [L760] CALL ldv_kobject_get(kobj) [L717] COND TRUE \read(*kobj) [L718] CALL ldv_kref_get(&kobj->kref) [L686] CALL ldv_atomic_add_return(1, (&kref->refcount)) [L657] int temp; [L658] EXPR v->counter [L658] temp = v->counter [L659] temp += i [L660] v->counter = temp [L661] return temp; [L686] RET ldv_atomic_add_return(1, (&kref->refcount)) [L718] RET ldv_kref_get(&kobj->kref) [L719] return kobj; [L760] RET ldv_kobject_get(kobj) [L761] CALL ldv_kobject_put(kobj) [L711] COND TRUE \read(*kobj) [L712] CALL ldv_kref_put(&kobj->kref, ldv_kobject_release) [L690] CALL ldv_kref_sub(kref, 1, release) [L674] CALL, EXPR ldv_atomic_sub_return(((int) count), (&kref->refcount)) [L665] int temp; [L666] EXPR v->counter [L666] temp = v->counter [L667] temp -= i [L668] v->counter = temp [L669] return temp; [L674] RET, EXPR ldv_atomic_sub_return(((int) count), (&kref->refcount)) [L674] COND TRUE (ldv_atomic_sub_return(((int) count), (&kref->refcount)) == 0) [L675] CALL release(kref) [L706] const typeof( ((struct ldv_kobject *)0)->kref ) *__mptr = (kref); [L706] struct ldv_kobject *kobj = ({ const typeof( ((struct ldv_kobject *)0)->kref ) *__mptr = (kref); (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) );}); [L707] CALL ldv_kobject_cleanup(kobj) [L699] EXPR kobj->name [L699] char *name = kobj->name; [L700] free(kobj) [L700] free(kobj) [L700] free(kobj) [L701] COND TRUE \read(*name) [L702] free(name) - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 763]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 47 procedures, 333 locations, 71 error locations. Started 1 CEGAR loops. OverallTime: 160619.06ms, OverallIterations: 27, TraceHistogramMax: 16, EmptinessCheckTime: 30.26ms, AutomataDifference: 22617.15ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 10.77ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 866 SdHoareTripleChecker+Valid, 19624.04ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 828 mSDsluCounter, 5877 SdHoareTripleChecker+Invalid, 16840.33ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 1993 IncrementalHoareTripleChecker+Unchecked, 18784 mSDsCounter, 197 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 21764 IncrementalHoareTripleChecker+Invalid, 23954 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 197 mSolverCounterUnsat, 939 mSDtfsCounter, 21764 mSolverCounterSat, 87.84ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2993 GetRequests, 2447 SyntacticMatches, 98 SemanticMatches, 448 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2261 ImplicationChecksByTransitivity, 10158.69ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=174occurred in iteration=0, InterpolantAutomatonStates: 330, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 118.84ms AutomataMinimizationTime, 26 MinimizatonAttempts, 59 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 337.58ms SsaConstructionTime, 1262.75ms SatisfiabilityAnalysisTime, 16294.94ms InterpolantComputationTime, 1466 NumberOfCodeBlocks, 1430 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 2880 ConstructedInterpolants, 478 QuantifiedInterpolants, 12273 SizeOfPredicates, 111 NumberOfNonLiveVariables, 6024 ConjunctsInSsa, 385 ConjunctsInUnsatCore, 52 InterpolantComputations, 46 PerfectInterpolantSequences, 3788/4046 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-08-30 17:53:24,151 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...