./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test21-2.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_test21-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 702f633b7e7ff05b6cbb070b8858a8adcd841273 ................................................................................................................................... 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_test21-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 702f633b7e7ff05b6cbb070b8858a8adcd841273 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 17:50:37,392 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-30 17:50:37,393 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-30 17:50:37,411 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-30 17:50:37,412 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-30 17:50:37,412 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-30 17:50:37,413 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-30 17:50:37,414 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-30 17:50:37,415 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-30 17:50:37,416 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-30 17:50:37,417 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-30 17:50:37,417 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-30 17:50:37,418 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-30 17:50:37,418 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-30 17:50:37,419 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-30 17:50:37,420 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-30 17:50:37,420 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-30 17:50:37,422 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-30 17:50:37,423 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-30 17:50:37,428 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-30 17:50:37,432 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-30 17:50:37,433 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-30 17:50:37,433 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-30 17:50:37,434 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-30 17:50:37,438 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-30 17:50:37,440 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-30 17:50:37,440 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-30 17:50:37,441 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-30 17:50:37,441 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-30 17:50:37,444 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-30 17:50:37,444 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-30 17:50:37,445 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-30 17:50:37,445 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-30 17:50:37,447 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-30 17:50:37,448 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-30 17:50:37,449 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-30 17:50:37,450 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-30 17:50:37,451 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-30 17:50:37,451 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-30 17:50:37,452 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-30 17:50:37,453 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-30 17:50:37,454 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-08-30 17:50:37,474 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-30 17:50:37,475 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-30 17:50:37,475 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-30 17:50:37,475 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-30 17:50:37,476 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-30 17:50:37,476 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-30 17:50:37,476 INFO L138 SettingsManager]: * Use SBE=true [2021-08-30 17:50:37,477 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-30 17:50:37,477 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-30 17:50:37,477 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-30 17:50:37,477 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-30 17:50:37,477 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-30 17:50:37,477 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-30 17:50:37,478 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-30 17:50:37,478 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-30 17:50:37,478 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-30 17:50:37,478 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-30 17:50:37,485 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-30 17:50:37,485 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-30 17:50:37,486 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-30 17:50:37,486 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-30 17:50:37,486 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-30 17:50:37,486 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-30 17:50:37,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 17:50:37,486 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-30 17:50:37,487 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-30 17:50:37,487 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-30 17:50:37,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-30 17:50:37,487 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-30 17:50:37,487 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 702f633b7e7ff05b6cbb070b8858a8adcd841273 [2021-08-30 17:50:37,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-30 17:50:37,750 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-30 17:50:37,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-30 17:50:37,753 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-30 17:50:37,753 INFO L275 PluginConnector]: CDTParser initialized [2021-08-30 17:50:37,754 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test21-2.i [2021-08-30 17:50:37,801 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/002895344/7b53ccf261ae4eafad3343413ab928f3/FLAGe449f2315 [2021-08-30 17:50:38,179 INFO L306 CDTParser]: Found 1 translation units. [2021-08-30 17:50:38,179 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test21-2.i [2021-08-30 17:50:38,191 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/002895344/7b53ccf261ae4eafad3343413ab928f3/FLAGe449f2315 [2021-08-30 17:50:38,583 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/002895344/7b53ccf261ae4eafad3343413ab928f3 [2021-08-30 17:50:38,585 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-30 17:50:38,586 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-30 17:50:38,587 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-30 17:50:38,587 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-30 17:50:38,589 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-30 17:50:38,590 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:50:38" (1/1) ... [2021-08-30 17:50:38,590 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@792666b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:50:38, skipping insertion in model container [2021-08-30 17:50:38,590 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:50:38" (1/1) ... [2021-08-30 17:50:38,595 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-30 17:50:38,627 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-30 17:50:38,870 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 17:50:38,881 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 17:50:38,882 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@428d7520 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:50:38, skipping insertion in model container [2021-08-30 17:50:38,882 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-30 17:50:38,882 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-08-30 17:50:38,883 INFO L158 Benchmark]: Toolchain (without parser) took 296.81ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 29.9MB in the beginning and 48.8MB in the end (delta: -18.9MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2021-08-30 17:50:38,884 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 54.5MB. Free memory was 36.6MB in the beginning and 36.5MB in the end (delta: 38.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 17:50:38,884 INFO L158 Benchmark]: CACSL2BoogieTranslator took 295.08ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 29.6MB in the beginning and 48.9MB in the end (delta: -19.2MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2021-08-30 17:50:38,885 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 54.5MB. Free memory was 36.6MB in the beginning and 36.5MB in the end (delta: 38.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 295.08ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 29.6MB in the beginning and 48.9MB in the end (delta: -19.2MB). Peak memory consumption was 7.5MB. 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 17:50:40,221 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-30 17:50:40,222 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-30 17:50:40,248 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-30 17:50:40,248 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-30 17:50:40,249 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-30 17:50:40,250 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-30 17:50:40,251 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-30 17:50:40,258 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-30 17:50:40,262 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-30 17:50:40,263 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-30 17:50:40,267 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-30 17:50:40,267 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-30 17:50:40,269 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-30 17:50:40,271 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-30 17:50:40,272 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-30 17:50:40,274 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-30 17:50:40,277 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-30 17:50:40,278 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-30 17:50:40,280 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-30 17:50:40,281 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-30 17:50:40,282 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-30 17:50:40,283 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-30 17:50:40,283 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-30 17:50:40,285 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-30 17:50:40,285 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-30 17:50:40,285 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-30 17:50:40,286 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-30 17:50:40,286 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-30 17:50:40,287 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-30 17:50:40,287 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-30 17:50:40,287 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-30 17:50:40,288 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-30 17:50:40,288 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-30 17:50:40,291 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-30 17:50:40,292 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-30 17:50:40,293 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-30 17:50:40,293 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-30 17:50:40,293 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-30 17:50:40,294 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-30 17:50:40,295 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-30 17:50:40,295 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-08-30 17:50:40,319 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-30 17:50:40,323 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-30 17:50:40,324 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-30 17:50:40,324 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-30 17:50:40,325 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-30 17:50:40,325 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-30 17:50:40,326 INFO L138 SettingsManager]: * Use SBE=true [2021-08-30 17:50:40,326 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-30 17:50:40,326 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-30 17:50:40,326 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-30 17:50:40,327 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-30 17:50:40,327 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-30 17:50:40,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-30 17:50:40,327 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-30 17:50:40,327 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-30 17:50:40,327 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-30 17:50:40,327 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-30 17:50:40,332 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-30 17:50:40,332 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-30 17:50:40,332 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-30 17:50:40,332 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-30 17:50:40,332 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-30 17:50:40,333 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-30 17:50:40,333 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-30 17:50:40,333 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-30 17:50:40,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 17:50:40,333 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-30 17:50:40,333 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-30 17:50:40,334 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-30 17:50:40,334 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-30 17:50:40,334 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-30 17:50:40,334 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-30 17:50:40,334 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 702f633b7e7ff05b6cbb070b8858a8adcd841273 [2021-08-30 17:50:40,568 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-30 17:50:40,590 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-30 17:50:40,592 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-30 17:50:40,592 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-30 17:50:40,593 INFO L275 PluginConnector]: CDTParser initialized [2021-08-30 17:50:40,593 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test21-2.i [2021-08-30 17:50:40,645 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4977d57a8/c6cebe0f93e74d78b573f02396e766ba/FLAG3df9988e0 [2021-08-30 17:50:41,068 INFO L306 CDTParser]: Found 1 translation units. [2021-08-30 17:50:41,069 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test21-2.i [2021-08-30 17:50:41,081 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4977d57a8/c6cebe0f93e74d78b573f02396e766ba/FLAG3df9988e0 [2021-08-30 17:50:41,089 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4977d57a8/c6cebe0f93e74d78b573f02396e766ba [2021-08-30 17:50:41,091 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-30 17:50:41,092 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-30 17:50:41,093 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-30 17:50:41,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-30 17:50:41,095 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-30 17:50:41,096 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:50:41" (1/1) ... [2021-08-30 17:50:41,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@792666b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:50:41, skipping insertion in model container [2021-08-30 17:50:41,100 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:50:41" (1/1) ... [2021-08-30 17:50:41,106 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-30 17:50:41,140 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-30 17:50:41,401 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 17:50:41,423 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-08-30 17:50:41,432 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-30 17:50:41,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 17:50:41,498 INFO L203 MainTranslator]: Completed pre-run [2021-08-30 17:50:41,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 17:50:41,578 INFO L208 MainTranslator]: Completed translation [2021-08-30 17:50:41,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:50:41 WrapperNode [2021-08-30 17:50:41,578 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-30 17:50:41,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-30 17:50:41,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-30 17:50:41,579 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-30 17:50:41,586 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:50:41" (1/1) ... [2021-08-30 17:50:41,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:50:41" (1/1) ... [2021-08-30 17:50:41,600 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:50:41" (1/1) ... [2021-08-30 17:50:41,600 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:50:41" (1/1) ... [2021-08-30 17:50:41,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:50:41" (1/1) ... [2021-08-30 17:50:41,631 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:50:41" (1/1) ... [2021-08-30 17:50:41,634 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:50:41" (1/1) ... [2021-08-30 17:50:41,640 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-30 17:50:41,640 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-30 17:50:41,640 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-30 17:50:41,640 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-30 17:50:41,641 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:50:41" (1/1) ... [2021-08-30 17:50:41,646 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 17:50:41,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 17:50:41,668 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 17:50:41,675 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 17:50:41,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-30 17:50:41,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-30 17:50:41,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-08-30 17:50:41,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-08-30 17:50:41,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-08-30 17:50:41,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-08-30 17:50:41,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-08-30 17:50:41,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-08-30 17:50:41,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-08-30 17:50:41,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-08-30 17:50:41,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-08-30 17:50:41,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-08-30 17:50:41,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-08-30 17:50:41,697 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-08-30 17:50:41,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-08-30 17:50:41,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-08-30 17:50:41,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-08-30 17:50:41,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-08-30 17:50:41,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-08-30 17:50:41,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-08-30 17:50:41,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-08-30 17:50:41,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-08-30 17:50:41,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-08-30 17:50:41,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-08-30 17:50:41,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-08-30 17:50:41,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-08-30 17:50:41,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-08-30 17:50:41,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-08-30 17:50:41,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-08-30 17:50:41,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-08-30 17:50:41,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-08-30 17:50:41,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-08-30 17:50:41,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-08-30 17:50:41,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-08-30 17:50:41,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-08-30 17:50:41,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-08-30 17:50:41,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-08-30 17:50:41,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-08-30 17:50:41,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-08-30 17:50:41,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-08-30 17:50:41,701 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-08-30 17:50:41,701 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-08-30 17:50:41,701 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_21 [2021-08-30 17:50:41,701 INFO L138 BoogieDeclarations]: Found implementation of procedure free_21 [2021-08-30 17:50:41,701 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-08-30 17:50:41,701 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-30 17:50:41,701 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-08-30 17:50:41,701 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-08-30 17:50:41,702 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-08-30 17:50:41,702 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-08-30 17:50:41,702 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-08-30 17:50:41,702 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-08-30 17:50:41,702 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-08-30 17:50:41,702 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-08-30 17:50:41,702 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-08-30 17:50:41,702 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-08-30 17:50:41,702 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-08-30 17:50:41,703 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-08-30 17:50:41,703 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-08-30 17:50:41,703 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-08-30 17:50:41,703 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-08-30 17:50:41,703 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-08-30 17:50:41,703 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-08-30 17:50:41,703 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-08-30 17:50:41,703 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-08-30 17:50:41,704 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-08-30 17:50:41,704 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-08-30 17:50:41,704 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-08-30 17:50:41,704 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-08-30 17:50:41,704 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-08-30 17:50:41,704 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-08-30 17:50:41,704 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-08-30 17:50:41,704 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-08-30 17:50:41,704 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-08-30 17:50:41,705 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-08-30 17:50:41,705 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-08-30 17:50:41,705 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-08-30 17:50:41,705 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-08-30 17:50:41,705 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-08-30 17:50:41,705 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-08-30 17:50:41,705 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-08-30 17:50:41,705 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-08-30 17:50:41,705 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-08-30 17:50:41,706 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-08-30 17:50:41,706 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-08-30 17:50:41,706 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-08-30 17:50:41,706 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-08-30 17:50:41,706 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-08-30 17:50:41,706 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-08-30 17:50:41,706 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-08-30 17:50:41,706 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-08-30 17:50:41,706 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-08-30 17:50:41,712 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-08-30 17:50:41,712 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-08-30 17:50:41,712 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-08-30 17:50:41,713 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-08-30 17:50:41,713 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-08-30 17:50:41,713 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-08-30 17:50:41,713 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-08-30 17:50:41,713 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-08-30 17:50:41,713 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-08-30 17:50:41,713 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-08-30 17:50:41,713 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-08-30 17:50:41,713 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-08-30 17:50:41,714 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-08-30 17:50:41,714 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-08-30 17:50:41,714 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-08-30 17:50:41,714 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-08-30 17:50:41,714 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-08-30 17:50:41,714 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-08-30 17:50:41,714 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-08-30 17:50:41,714 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-08-30 17:50:41,714 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-30 17:50:41,715 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-08-30 17:50:41,715 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-08-30 17:50:41,715 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-08-30 17:50:41,715 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-08-30 17:50:41,715 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-08-30 17:50:41,715 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-08-30 17:50:41,715 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-08-30 17:50:41,715 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-08-30 17:50:41,715 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-08-30 17:50:41,716 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-08-30 17:50:41,716 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-08-30 17:50:41,716 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-08-30 17:50:41,716 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-08-30 17:50:41,716 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-08-30 17:50:41,716 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-08-30 17:50:41,716 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-08-30 17:50:41,716 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-08-30 17:50:41,716 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-08-30 17:50:41,717 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-08-30 17:50:41,717 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-08-30 17:50:41,717 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-08-30 17:50:41,717 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-08-30 17:50:41,717 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-08-30 17:50:41,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-08-30 17:50:41,717 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-08-30 17:50:41,717 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-08-30 17:50:41,717 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-08-30 17:50:41,718 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-08-30 17:50:41,718 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-08-30 17:50:41,718 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-08-30 17:50:41,718 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-08-30 17:50:41,718 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-08-30 17:50:41,718 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-08-30 17:50:41,718 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-08-30 17:50:41,718 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-08-30 17:50:41,718 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-08-30 17:50:41,719 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-08-30 17:50:41,719 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-08-30 17:50:41,719 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-08-30 17:50:41,719 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-08-30 17:50:41,719 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-08-30 17:50:41,719 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-08-30 17:50:41,719 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-08-30 17:50:41,719 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-08-30 17:50:41,719 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-30 17:50:41,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-08-30 17:50:41,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-08-30 17:50:41,720 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-08-30 17:50:41,720 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-08-30 17:50:41,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-08-30 17:50:41,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-30 17:50:41,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-08-30 17:50:41,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-08-30 17:50:41,720 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-08-30 17:50:41,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-30 17:50:41,721 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-08-30 17:50:41,721 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-08-30 17:50:41,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-08-30 17:50:41,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-30 17:50:41,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-08-30 17:50:41,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-08-30 17:50:41,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-08-30 17:50:41,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-08-30 17:50:41,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-08-30 17:50:41,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-08-30 17:50:41,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-30 17:50:41,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-08-30 17:50:41,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-08-30 17:50:41,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-08-30 17:50:41,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-08-30 17:50:41,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-08-30 17:50:41,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-30 17:50:41,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-30 17:50:41,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-08-30 17:50:41,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-08-30 17:50:41,723 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-08-30 17:50:41,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-08-30 17:50:41,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-08-30 17:50:41,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-08-30 17:50:41,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-08-30 17:50:41,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-08-30 17:50:41,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-08-30 17:50:41,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-08-30 17:50:41,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-08-30 17:50:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-08-30 17:50:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-08-30 17:50:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-08-30 17:50:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-08-30 17:50:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-08-30 17:50:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-08-30 17:50:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_21 [2021-08-30 17:50:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure free_21 [2021-08-30 17:50:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-08-30 17:50:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-30 17:50:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-30 17:50:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-30 17:50:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-08-30 17:50:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-30 17:50:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-08-30 17:50:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-08-30 17:50:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-08-30 17:50:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-08-30 17:50:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-08-30 17:50:42,045 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-30 17:50:42,117 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-30 17:50:42,176 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-30 17:50:42,176 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-08-30 17:50:42,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:50:42 BoogieIcfgContainer [2021-08-30 17:50:42,178 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-30 17:50:42,188 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-30 17:50:42,188 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-30 17:50:42,190 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-30 17:50:42,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 05:50:41" (1/3) ... [2021-08-30 17:50:42,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@98c5a30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:50:42, skipping insertion in model container [2021-08-30 17:50:42,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:50:41" (2/3) ... [2021-08-30 17:50:42,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@98c5a30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:50:42, skipping insertion in model container [2021-08-30 17:50:42,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:50:42" (3/3) ... [2021-08-30 17:50:42,192 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test21-2.i [2021-08-30 17:50:42,195 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-30 17:50:42,195 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 74 error locations. [2021-08-30 17:50:42,220 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-30 17:50:42,224 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 17:50:42,224 INFO L340 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2021-08-30 17:50:42,233 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 58 states have (on average 1.5) internal successors, (87), 79 states have internal predecessors, (87), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-08-30 17:50:42,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-08-30 17:50:42,238 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:50:42,239 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] [2021-08-30 17:50:42,248 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting free_21Err0ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-30 17:50:42,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:50:42,252 INFO L82 PathProgramCache]: Analyzing trace with hash -1560719066, now seen corresponding path program 1 times [2021-08-30 17:50:42,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:50:42,264 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1596590436] [2021-08-30 17:50:42,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:50:42,265 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:50:42,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:50:42,267 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 17:50:42,285 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 17:50:42,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:50:42,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-30 17:50:42,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:50:42,618 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 17:50:42,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:50:42,735 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 17:50:42,737 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:50:42,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1596590436] [2021-08-30 17:50:42,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1596590436] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:50:42,738 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:50:42,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 10 [2021-08-30 17:50:42,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161907772] [2021-08-30 17:50:42,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-30 17:50:42,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:50:42,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-30 17:50:42,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-08-30 17:50:42,773 INFO L87 Difference]: Start difference. First operand has 105 states, 58 states have (on average 1.5) internal successors, (87), 79 states have internal predecessors, (87), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 17:50:42,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:50:42,984 INFO L93 Difference]: Finished difference Result 52 states and 54 transitions. [2021-08-30 17:50:42,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-30 17:50:42,986 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 21 [2021-08-30 17:50:42,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:50:42,991 INFO L225 Difference]: With dead ends: 52 [2021-08-30 17:50:42,992 INFO L226 Difference]: Without dead ends: 49 [2021-08-30 17:50:42,993 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 82.94ms TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2021-08-30 17:50:42,996 INFO L928 BasicCegarLoop]: 14 mSDtfsCounter, 31 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 118.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.23ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 149.95ms IncrementalHoareTripleChecker+Time [2021-08-30 17:50:42,996 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 138 Invalid, 268 Unknown, 0 Unchecked, 7.23ms Time], IncrementalHoareTripleChecker [3 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 149.95ms Time] [2021-08-30 17:50:43,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-08-30 17:50:43,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2021-08-30 17:50:43,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 25 states have (on average 1.32) internal successors, (33), 29 states have internal predecessors, (33), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2021-08-30 17:50:43,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2021-08-30 17:50:43,029 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 21 [2021-08-30 17:50:43,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:50:43,029 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2021-08-30 17:50:43,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 17:50:43,030 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2021-08-30 17:50:43,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-08-30 17:50:43,031 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:50:43,031 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] [2021-08-30 17:50:43,045 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 17:50:43,246 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 17:50:43,246 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting free_21Err0ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-30 17:50:43,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:50:43,247 INFO L82 PathProgramCache]: Analyzing trace with hash 182091269, now seen corresponding path program 1 times [2021-08-30 17:50:43,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:50:43,247 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [803945193] [2021-08-30 17:50:43,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:50:43,247 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:50:43,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:50:43,248 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 17:50:43,249 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 17:50:43,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:50:43,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-30 17:50:43,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:50:43,420 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 17:50:43,421 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:50:43,488 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 17:50:43,488 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:50:43,488 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [803945193] [2021-08-30 17:50:43,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [803945193] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:50:43,489 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:50:43,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-30 17:50:43,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577087287] [2021-08-30 17:50:43,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-30 17:50:43,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:50:43,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-30 17:50:43,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 17:50:43,491 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 17:50:43,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:50:43,538 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2021-08-30 17:50:43,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-30 17:50:43,539 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 21 [2021-08-30 17:50:43,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:50:43,540 INFO L225 Difference]: With dead ends: 49 [2021-08-30 17:50:43,540 INFO L226 Difference]: Without dead ends: 49 [2021-08-30 17:50:43,540 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.85ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 17:50:43,541 INFO L928 BasicCegarLoop]: 11 mSDtfsCounter, 2 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.67ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.00ms IncrementalHoareTripleChecker+Time [2021-08-30 17:50:43,541 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 44 Invalid, 91 Unknown, 0 Unchecked, 0.67ms Time], IncrementalHoareTripleChecker [0 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 44.00ms Time] [2021-08-30 17:50:43,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-08-30 17:50:43,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 47. [2021-08-30 17:50:43,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 32 states have internal predecessors, (36), 7 states have call successors, (7), 7 states have call predecessors, (7), 8 states have return successors, (8), 7 states have call predecessors, (8), 6 states have call successors, (8) [2021-08-30 17:50:43,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2021-08-30 17:50:43,545 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 21 [2021-08-30 17:50:43,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:50:43,546 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2021-08-30 17:50:43,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 17:50:43,546 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2021-08-30 17:50:43,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-08-30 17:50:43,546 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:50:43,547 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] [2021-08-30 17:50:43,555 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 17:50:43,753 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 17:50:43,753 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting free_21Err0ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-30 17:50:43,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:50:43,754 INFO L82 PathProgramCache]: Analyzing trace with hash 311173988, now seen corresponding path program 1 times [2021-08-30 17:50:43,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:50:43,754 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [126152165] [2021-08-30 17:50:43,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:50:43,755 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:50:43,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:50:43,755 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 17:50:43,757 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 17:50:43,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:50:43,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-30 17:50:43,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:50:43,977 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 17:50:43,978 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:50:44,065 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 17:50:44,065 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:50:44,066 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [126152165] [2021-08-30 17:50:44,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [126152165] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:50:44,066 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:50:44,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-08-30 17:50:44,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672107903] [2021-08-30 17:50:44,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-30 17:50:44,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:50:44,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-30 17:50:44,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-30 17:50:44,068 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 17:50:44,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:50:44,158 INFO L93 Difference]: Finished difference Result 45 states and 46 transitions. [2021-08-30 17:50:44,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-30 17:50:44,159 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 21 [2021-08-30 17:50:44,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:50:44,159 INFO L225 Difference]: With dead ends: 45 [2021-08-30 17:50:44,159 INFO L226 Difference]: Without dead ends: 45 [2021-08-30 17:50:44,160 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 44.58ms TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-30 17:50:44,160 INFO L928 BasicCegarLoop]: 13 mSDtfsCounter, 6 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 60.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.54ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 75.00ms IncrementalHoareTripleChecker+Time [2021-08-30 17:50:44,161 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 75 Invalid, 149 Unknown, 0 Unchecked, 1.54ms Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 75.00ms Time] [2021-08-30 17:50:44,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-08-30 17:50:44,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2021-08-30 17:50:44,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 25 states have (on average 1.16) internal successors, (29), 28 states have internal predecessors, (29), 7 states have call successors, (7), 7 states have call predecessors, (7), 8 states have return successors, (8), 7 states have call predecessors, (8), 6 states have call successors, (8) [2021-08-30 17:50:44,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2021-08-30 17:50:44,164 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 21 [2021-08-30 17:50:44,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:50:44,164 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2021-08-30 17:50:44,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 17:50:44,164 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2021-08-30 17:50:44,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-30 17:50:44,165 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:50:44,165 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] [2021-08-30 17:50:44,176 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 17:50:44,372 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 17:50:44,373 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting free_21Err1ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-30 17:50:44,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:50:44,374 INFO L82 PathProgramCache]: Analyzing trace with hash -1137650385, now seen corresponding path program 1 times [2021-08-30 17:50:44,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:50:44,374 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [264509859] [2021-08-30 17:50:44,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:50:44,374 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:50:44,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:50:44,375 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 17:50:44,376 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 17:50:44,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:50:44,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 13 conjunts are in the unsatisfiable core [2021-08-30 17:50:44,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:50:44,683 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 17:50:44,684 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:50:44,974 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 17:50:44,975 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:50:44,975 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [264509859] [2021-08-30 17:50:44,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [264509859] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:50:44,975 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:50:44,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 20 [2021-08-30 17:50:44,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470586709] [2021-08-30 17:50:44,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-08-30 17:50:44,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:50:44,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-08-30 17:50:44,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2021-08-30 17:50:44,977 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand has 21 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 15 states have internal predecessors, (26), 4 states have call successors, (11), 4 states have call predecessors, (11), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-30 17:50:45,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:50:45,518 INFO L93 Difference]: Finished difference Result 56 states and 57 transitions. [2021-08-30 17:50:45,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-30 17:50:45,519 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 15 states have internal predecessors, (26), 4 states have call successors, (11), 4 states have call predecessors, (11), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) Word has length 22 [2021-08-30 17:50:45,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:50:45,520 INFO L225 Difference]: With dead ends: 56 [2021-08-30 17:50:45,520 INFO L226 Difference]: Without dead ends: 56 [2021-08-30 17:50:45,520 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 437.59ms TimeCoverageRelationStatistics Valid=121, Invalid=635, Unknown=0, NotChecked=0, Total=756 [2021-08-30 17:50:45,521 INFO L928 BasicCegarLoop]: 11 mSDtfsCounter, 70 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 301.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.60ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 365.79ms IncrementalHoareTripleChecker+Time [2021-08-30 17:50:45,521 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 15 Invalid, 513 Unknown, 0 Unchecked, 2.60ms Time], IncrementalHoareTripleChecker [11 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 365.79ms Time] [2021-08-30 17:50:45,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-08-30 17:50:45,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 42. [2021-08-30 17:50:45,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 25 states have (on average 1.12) internal successors, (28), 27 states have internal predecessors, (28), 7 states have call successors, (7), 7 states have call predecessors, (7), 8 states have return successors, (8), 7 states have call predecessors, (8), 6 states have call successors, (8) [2021-08-30 17:50:45,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2021-08-30 17:50:45,525 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 22 [2021-08-30 17:50:45,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:50:45,526 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2021-08-30 17:50:45,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 15 states have internal predecessors, (26), 4 states have call successors, (11), 4 states have call predecessors, (11), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-30 17:50:45,526 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2021-08-30 17:50:45,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-30 17:50:45,526 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:50:45,526 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] [2021-08-30 17:50:45,533 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 17:50:45,732 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 17:50:45,732 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting free_21Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-30 17:50:45,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:50:45,733 INFO L82 PathProgramCache]: Analyzing trace with hash -907423160, now seen corresponding path program 1 times [2021-08-30 17:50:45,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:50:45,733 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1278401638] [2021-08-30 17:50:45,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:50:45,733 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:50:45,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:50:45,734 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 17:50:45,735 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 17:50:45,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:50:45,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 13 conjunts are in the unsatisfiable core [2021-08-30 17:50:45,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:50:45,888 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 17:50:46,013 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 17:50:46,013 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:50:46,158 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 17:50:46,158 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:50:46,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1278401638] [2021-08-30 17:50:46,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1278401638] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:50:46,158 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:50:46,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 10 [2021-08-30 17:50:46,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767403596] [2021-08-30 17:50:46,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-30 17:50:46,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:50:46,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-30 17:50:46,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-08-30 17:50:46,160 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 17:50:46,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:50:46,338 INFO L93 Difference]: Finished difference Result 51 states and 53 transitions. [2021-08-30 17:50:46,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-30 17:50:46,338 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2021-08-30 17:50:46,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:50:46,339 INFO L225 Difference]: With dead ends: 51 [2021-08-30 17:50:46,339 INFO L226 Difference]: Without dead ends: 51 [2021-08-30 17:50:46,339 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 30 SyntacticMatches, 6 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 111.14ms TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2021-08-30 17:50:46,340 INFO L928 BasicCegarLoop]: 12 mSDtfsCounter, 9 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 112.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.49ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 137.91ms IncrementalHoareTripleChecker+Time [2021-08-30 17:50:46,340 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 94 Invalid, 235 Unknown, 0 Unchecked, 1.49ms Time], IncrementalHoareTripleChecker [0 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 137.91ms Time] [2021-08-30 17:50:46,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-08-30 17:50:46,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-08-30 17:50:46,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 32 states have (on average 1.09375) internal successors, (35), 34 states have internal predecessors, (35), 8 states have call successors, (8), 8 states have call predecessors, (8), 9 states have return successors, (10), 8 states have call predecessors, (10), 7 states have call successors, (10) [2021-08-30 17:50:46,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 53 transitions. [2021-08-30 17:50:46,345 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 53 transitions. Word has length 23 [2021-08-30 17:50:46,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:50:46,345 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 53 transitions. [2021-08-30 17:50:46,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 17:50:46,346 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 53 transitions. [2021-08-30 17:50:46,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-30 17:50:46,346 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:50:46,346 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] [2021-08-30 17:50:46,356 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-08-30 17:50:46,552 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 17:50:46,553 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting free_21Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-30 17:50:46,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:50:46,554 INFO L82 PathProgramCache]: Analyzing trace with hash -1412981785, now seen corresponding path program 1 times [2021-08-30 17:50:46,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:50:46,554 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [101523324] [2021-08-30 17:50:46,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:50:46,554 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:50:46,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:50:46,555 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 17:50:46,555 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 17:50:46,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:50:46,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-30 17:50:46,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:50:46,711 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 17:50:46,711 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:50:46,803 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 17:50:46,804 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:50:46,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [101523324] [2021-08-30 17:50:46,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [101523324] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:50:46,804 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:50:46,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-30 17:50:46,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442116677] [2021-08-30 17:50:46,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-30 17:50:46,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:50:46,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-30 17:50:46,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 17:50:46,805 INFO L87 Difference]: Start difference. First operand 51 states and 53 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 17:50:46,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:50:46,862 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2021-08-30 17:50:46,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-30 17:50:46,863 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2021-08-30 17:50:46,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:50:46,863 INFO L225 Difference]: With dead ends: 41 [2021-08-30 17:50:46,863 INFO L226 Difference]: Without dead ends: 41 [2021-08-30 17:50:46,863 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.91ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 17:50:46,864 INFO L928 BasicCegarLoop]: 13 mSDtfsCounter, 2 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.54ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.76ms IncrementalHoareTripleChecker+Time [2021-08-30 17:50:46,864 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 51 Invalid, 87 Unknown, 0 Unchecked, 0.54ms Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 53.76ms Time] [2021-08-30 17:50:46,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-08-30 17:50:46,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-08-30 17:50:46,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 25 states have (on average 1.04) internal successors, (26), 26 states have internal predecessors, (26), 7 states have call successors, (7), 7 states have call predecessors, (7), 8 states have return successors, (8), 7 states have call predecessors, (8), 6 states have call successors, (8) [2021-08-30 17:50:46,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 41 transitions. [2021-08-30 17:50:46,867 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 41 transitions. Word has length 23 [2021-08-30 17:50:46,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:50:46,868 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 41 transitions. [2021-08-30 17:50:46,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 17:50:46,868 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2021-08-30 17:50:46,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-08-30 17:50:46,868 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:50:46,868 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] [2021-08-30 17:50:46,877 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 17:50:47,077 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 17:50:47,078 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-30 17:50:47,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:50:47,078 INFO L82 PathProgramCache]: Analyzing trace with hash -298029978, now seen corresponding path program 1 times [2021-08-30 17:50:47,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:50:47,078 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [977422446] [2021-08-30 17:50:47,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:50:47,078 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:50:47,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:50:47,079 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 17:50:47,080 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 17:50:47,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:50:47,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-30 17:50:47,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:50:47,233 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 17:50:47,233 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:50:47,349 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 17:50:47,349 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:50:47,349 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [977422446] [2021-08-30 17:50:47,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [977422446] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:50:47,350 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:50:47,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-30 17:50:47,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674338189] [2021-08-30 17:50:47,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-30 17:50:47,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:50:47,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-30 17:50:47,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 17:50:47,350 INFO L87 Difference]: Start difference. First operand 41 states and 41 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-30 17:50:47,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:50:47,383 INFO L93 Difference]: Finished difference Result 44 states and 43 transitions. [2021-08-30 17:50:47,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-30 17:50:47,384 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 25 [2021-08-30 17:50:47,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:50:47,384 INFO L225 Difference]: With dead ends: 44 [2021-08-30 17:50:47,384 INFO L226 Difference]: Without dead ends: 29 [2021-08-30 17:50:47,384 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.58ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 17:50:47,385 INFO L928 BasicCegarLoop]: 11 mSDtfsCounter, 3 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.33ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.28ms IncrementalHoareTripleChecker+Time [2021-08-30 17:50:47,385 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 13 Invalid, 45 Unknown, 0 Unchecked, 0.33ms Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 30.28ms Time] [2021-08-30 17:50:47,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-08-30 17:50:47,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-08-30 17:50:47,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 17 states have (on average 1.0) internal successors, (17), 17 states have internal predecessors, (17), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-08-30 17:50:47,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 28 transitions. [2021-08-30 17:50:47,390 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 28 transitions. Word has length 25 [2021-08-30 17:50:47,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:50:47,391 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 28 transitions. [2021-08-30 17:50:47,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-30 17:50:47,391 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 28 transitions. [2021-08-30 17:50:47,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-08-30 17:50:47,392 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:50:47,392 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] [2021-08-30 17:50:47,401 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 17:50:47,598 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 17:50:47,598 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-30 17:50:47,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:50:47,599 INFO L82 PathProgramCache]: Analyzing trace with hash -339267371, now seen corresponding path program 1 times [2021-08-30 17:50:47,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:50:47,599 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1210240266] [2021-08-30 17:50:47,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:50:47,599 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:50:47,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:50:47,600 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 17:50:47,605 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 17:50:47,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:50:47,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 23 conjunts are in the unsatisfiable core [2021-08-30 17:50:47,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:50:47,917 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 17:50:47,917 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:50:52,145 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:50:52,145 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1210240266] [2021-08-30 17:50:52,145 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-30 17:50:52,145 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1984573897] [2021-08-30 17:50:52,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:50:52,146 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-08-30 17:50:52,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2021-08-30 17:50:52,149 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-08-30 17:50:52,165 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-08-30 17:50:52,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:50:52,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 25 conjunts are in the unsatisfiable core [2021-08-30 17:50:52,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:50:52,324 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-08-30 17:50:52,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 31 [2021-08-30 17:50:56,633 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 17:50:56,634 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:51:00,879 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-30 17:51:00,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [393611075] [2021-08-30 17:51:00,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:51:00,880 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 17:51:00,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 17:51:00,880 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-30 17:51:00,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-08-30 17:51:00,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:51:00,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 22 conjunts are in the unsatisfiable core [2021-08-30 17:51:00,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:51:01,111 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 17:51:01,111 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:51:05,377 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-30 17:51:05,378 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:51:05,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-08-30 17:51:05,378 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-08-30 17:51:05,378 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-08-30 17:51:05,381 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK (73 of 74 remaining) [2021-08-30 17:51:05,382 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION (72 of 74 remaining) [2021-08-30 17:51:05,382 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION (71 of 74 remaining) [2021-08-30 17:51:05,382 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION (70 of 74 remaining) [2021-08-30 17:51:05,382 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION (69 of 74 remaining) [2021-08-30 17:51:05,382 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION (68 of 74 remaining) [2021-08-30 17:51:05,383 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION (67 of 74 remaining) [2021-08-30 17:51:05,383 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION (66 of 74 remaining) [2021-08-30 17:51:05,383 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION (65 of 74 remaining) [2021-08-30 17:51:05,383 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION (64 of 74 remaining) [2021-08-30 17:51:05,383 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION (63 of 74 remaining) [2021-08-30 17:51:05,383 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION (62 of 74 remaining) [2021-08-30 17:51:05,383 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION (61 of 74 remaining) [2021-08-30 17:51:05,383 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION (60 of 74 remaining) [2021-08-30 17:51:05,383 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION (59 of 74 remaining) [2021-08-30 17:51:05,384 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION (58 of 74 remaining) [2021-08-30 17:51:05,384 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION (57 of 74 remaining) [2021-08-30 17:51:05,384 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION (56 of 74 remaining) [2021-08-30 17:51:05,384 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION (55 of 74 remaining) [2021-08-30 17:51:05,384 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION (54 of 74 remaining) [2021-08-30 17:51:05,384 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION (53 of 74 remaining) [2021-08-30 17:51:05,384 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION (52 of 74 remaining) [2021-08-30 17:51:05,384 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION (51 of 74 remaining) [2021-08-30 17:51:05,384 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION (50 of 74 remaining) [2021-08-30 17:51:05,385 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION (49 of 74 remaining) [2021-08-30 17:51:05,385 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION (48 of 74 remaining) [2021-08-30 17:51:05,385 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION (47 of 74 remaining) [2021-08-30 17:51:05,385 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION (46 of 74 remaining) [2021-08-30 17:51:05,385 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION (45 of 74 remaining) [2021-08-30 17:51:05,385 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION (44 of 74 remaining) [2021-08-30 17:51:05,385 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION (43 of 74 remaining) [2021-08-30 17:51:05,385 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION (42 of 74 remaining) [2021-08-30 17:51:05,385 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION (41 of 74 remaining) [2021-08-30 17:51:05,386 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION (40 of 74 remaining) [2021-08-30 17:51:05,386 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION (39 of 74 remaining) [2021-08-30 17:51:05,386 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION (38 of 74 remaining) [2021-08-30 17:51:05,386 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION (37 of 74 remaining) [2021-08-30 17:51:05,386 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION (36 of 74 remaining) [2021-08-30 17:51:05,386 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION (35 of 74 remaining) [2021-08-30 17:51:05,386 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION (34 of 74 remaining) [2021-08-30 17:51:05,386 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION (33 of 74 remaining) [2021-08-30 17:51:05,386 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION (32 of 74 remaining) [2021-08-30 17:51:05,387 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION (31 of 74 remaining) [2021-08-30 17:51:05,387 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE (30 of 74 remaining) [2021-08-30 17:51:05,393 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE (29 of 74 remaining) [2021-08-30 17:51:05,393 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE (28 of 74 remaining) [2021-08-30 17:51:05,393 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE (27 of 74 remaining) [2021-08-30 17:51:05,393 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE (26 of 74 remaining) [2021-08-30 17:51:05,393 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE (25 of 74 remaining) [2021-08-30 17:51:05,393 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION (24 of 74 remaining) [2021-08-30 17:51:05,393 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION (23 of 74 remaining) [2021-08-30 17:51:05,393 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION (22 of 74 remaining) [2021-08-30 17:51:05,394 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION (21 of 74 remaining) [2021-08-30 17:51:05,394 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION (20 of 74 remaining) [2021-08-30 17:51:05,394 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION (19 of 74 remaining) [2021-08-30 17:51:05,394 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION (18 of 74 remaining) [2021-08-30 17:51:05,394 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION (17 of 74 remaining) [2021-08-30 17:51:05,394 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE (16 of 74 remaining) [2021-08-30 17:51:05,394 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE (15 of 74 remaining) [2021-08-30 17:51:05,394 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE (14 of 74 remaining) [2021-08-30 17:51:05,394 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE (13 of 74 remaining) [2021-08-30 17:51:05,395 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE (12 of 74 remaining) [2021-08-30 17:51:05,395 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE (11 of 74 remaining) [2021-08-30 17:51:05,395 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION (10 of 74 remaining) [2021-08-30 17:51:05,395 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION (9 of 74 remaining) [2021-08-30 17:51:05,395 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION (8 of 74 remaining) [2021-08-30 17:51:05,395 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION (7 of 74 remaining) [2021-08-30 17:51:05,395 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION (6 of 74 remaining) [2021-08-30 17:51:05,395 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION (5 of 74 remaining) [2021-08-30 17:51:05,395 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION (4 of 74 remaining) [2021-08-30 17:51:05,396 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION (3 of 74 remaining) [2021-08-30 17:51:05,396 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_21Err0ASSERT_VIOLATIONMEMORY_FREE (2 of 74 remaining) [2021-08-30 17:51:05,396 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_21Err1ASSERT_VIOLATIONMEMORY_FREE (1 of 74 remaining) [2021-08-30 17:51:05,396 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_21Err2ASSERT_VIOLATIONMEMORY_FREE (0 of 74 remaining) [2021-08-30 17:51:05,416 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-08-30 17:51:05,623 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 17:51:05,819 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-08-30 17:51:06,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2021-08-30 17:51:06,021 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-30 17:51:06,022 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-08-30 17:51:06,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 05:51:06 BoogieIcfgContainer [2021-08-30 17:51:06,031 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-30 17:51:06,031 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-30 17:51:06,031 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-30 17:51:06,031 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-30 17:51:06,032 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:50:42" (3/4) ... [2021-08-30 17:51:06,035 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-30 17:51:06,035 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-30 17:51:06,036 INFO L158 Benchmark]: Toolchain (without parser) took 24944.11ms. Allocated memory was 52.4MB in the beginning and 96.5MB in the end (delta: 44.0MB). Free memory was 28.0MB in the beginning and 63.3MB in the end (delta: -35.3MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. [2021-08-30 17:51:06,036 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 52.4MB. Free memory is still 34.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 17:51:06,036 INFO L158 Benchmark]: CACSL2BoogieTranslator took 485.70ms. Allocated memory was 52.4MB in the beginning and 62.9MB in the end (delta: 10.5MB). Free memory was 27.8MB in the beginning and 39.8MB in the end (delta: -12.0MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2021-08-30 17:51:06,037 INFO L158 Benchmark]: Boogie Preprocessor took 60.77ms. Allocated memory is still 62.9MB. Free memory was 39.7MB in the beginning and 35.0MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-30 17:51:06,037 INFO L158 Benchmark]: RCFGBuilder took 537.80ms. Allocated memory is still 62.9MB. Free memory was 35.0MB in the beginning and 24.4MB in the end (delta: 10.6MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. [2021-08-30 17:51:06,037 INFO L158 Benchmark]: TraceAbstraction took 23843.15ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 53.7MB in the beginning and 64.0MB in the end (delta: -10.3MB). Peak memory consumption was 43.3MB. Max. memory is 16.1GB. [2021-08-30 17:51:06,037 INFO L158 Benchmark]: Witness Printer took 4.34ms. Allocated memory is still 96.5MB. Free memory was 64.0MB in the beginning and 63.3MB in the end (delta: 756.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 17:51:06,039 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 52.4MB. Free memory is still 34.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 485.70ms. Allocated memory was 52.4MB in the beginning and 62.9MB in the end (delta: 10.5MB). Free memory was 27.8MB in the beginning and 39.8MB in the end (delta: -12.0MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.77ms. Allocated memory is still 62.9MB. Free memory was 39.7MB in the beginning and 35.0MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 537.80ms. Allocated memory is still 62.9MB. Free memory was 35.0MB in the beginning and 24.4MB in the end (delta: 10.6MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. * TraceAbstraction took 23843.15ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 53.7MB in the beginning and 64.0MB in the end (delta: -10.3MB). Peak memory consumption was 43.3MB. Max. memory is 16.1GB. * Witness Printer took 4.34ms. Allocated memory is still 96.5MB. Free memory was 64.0MB in the beginning and 63.3MB in the end (delta: 756.3kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); 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: 779]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: unable to decide satisfiability of path constraint, overapproximation of memtrack at line 779. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L780] CALL entry_point() [L776] CALL, EXPR alloc_21() [L762] CALL, EXPR ldv_malloc(sizeof(struct A21)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L762] RET, EXPR ldv_malloc(sizeof(struct A21)) [L762] struct A21 *p = (struct A21*)ldv_malloc(sizeof(struct A21)); [L763] COND TRUE \read(*p) [L764] return &p->dev; [L776] RET, EXPR alloc_21() [L776] struct ldv_device *dev = alloc_21(); [L777] CALL free_21(dev) [L770] COND TRUE \read(*dev) [L771] const typeof( ((struct A21 *)0)->dev ) *__mptr = (dev); [L771] struct A21 *p = ({ const typeof( ((struct A21 *)0)->dev ) *__mptr = (dev); (struct A21 *)( (char *)__mptr - ((size_t) &((struct A21 *)0)->dev) );}); [L772] free(p) [L772] free(p) [L772] free(p) [L777] RET free_21(dev) [L780] RET entry_point() - 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: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 772]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 772]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 772]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 49 procedures, 345 locations, 74 error locations. Started 1 CEGAR loops. OverallTime: 23800.69ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 11.42ms, AutomataDifference: 1222.70ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 6.56ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 132 SdHoareTripleChecker+Valid, 856.68ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 123 mSDsluCounter, 430 SdHoareTripleChecker+Invalid, 688.29ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 976 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1372 IncrementalHoareTripleChecker+Invalid, 1388 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 85 mSDtfsCounter, 1372 mSolverCounterSat, 14.39ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 319 GetRequests, 250 SyntacticMatches, 6 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 697.61ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=105occurred in iteration=0, InterpolantAutomatonStates: 65, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 41.24ms AutomataMinimizationTime, 7 MinimizatonAttempts, 24 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 68.01ms SsaConstructionTime, 121.23ms SatisfiabilityAnalysisTime, 1803.33ms InterpolantComputationTime, 156 NumberOfCodeBlocks, 156 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 298 ConstructedInterpolants, 0 QuantifiedInterpolants, 958 SizeOfPredicates, 15 NumberOfNonLiveVariables, 601 ConjunctsInSsa, 69 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-08-30 17:51:06,083 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...