./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 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_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-dev-20ed64e [2021-08-27 06:18:07,639 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:18:07,642 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:18:07,682 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:18:07,683 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:18:07,687 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:18:07,688 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:18:07,694 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:18:07,696 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:18:07,700 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:18:07,701 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:18:07,704 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:18:07,705 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:18:07,705 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:18:07,707 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:18:07,708 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:18:07,709 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:18:07,710 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:18:07,711 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:18:07,713 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:18:07,714 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:18:07,716 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:18:07,717 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:18:07,718 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:18:07,730 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:18:07,730 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:18:07,730 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:18:07,731 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:18:07,733 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:18:07,734 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:18:07,734 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:18:07,735 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:18:07,736 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:18:07,737 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:18:07,738 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:18:07,738 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:18:07,739 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:18:07,740 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:18:07,740 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:18:07,741 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:18:07,742 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:18:07,745 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-08-27 06:18:07,772 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:18:07,772 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:18:07,773 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:18:07,774 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:18:07,775 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:18:07,776 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:18:07,776 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:18:07,776 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:18:07,776 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:18:07,776 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:18:07,777 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:18:07,777 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:18:07,778 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:18:07,778 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:18:07,778 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:18:07,778 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:18:07,778 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:18:07,778 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:18:07,779 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:18:07,779 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:18:07,779 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:18:07,779 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:18:07,779 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:18:07,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:18:07,780 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:18:07,780 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:18:07,780 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 06:18:07,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-27 06:18:07,781 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:18:07,781 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 702f633b7e7ff05b6cbb070b8858a8adcd841273 [2021-08-27 06:18:08,092 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:18:08,116 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:18:08,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:18:08,119 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:18:08,120 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:18:08,121 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test21-2.i [2021-08-27 06:18:08,181 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc542ff00/e1f377902c004586a25c127b67e55eb8/FLAG595e3f5b9 [2021-08-27 06:18:08,712 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:18:08,712 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test21-2.i [2021-08-27 06:18:08,735 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc542ff00/e1f377902c004586a25c127b67e55eb8/FLAG595e3f5b9 [2021-08-27 06:18:09,170 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc542ff00/e1f377902c004586a25c127b67e55eb8 [2021-08-27 06:18:09,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:18:09,173 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:18:09,174 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:18:09,174 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:18:09,177 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:18:09,178 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:18:09" (1/1) ... [2021-08-27 06:18:09,179 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@425beb30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:09, skipping insertion in model container [2021-08-27 06:18:09,179 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:18:09" (1/1) ... [2021-08-27 06:18:09,187 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:18:09,222 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:18:09,610 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:18:09,632 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-08-27 06:18:09,633 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6050e217 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:09, skipping insertion in model container [2021-08-27 06:18:09,633 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:18:09,634 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-08-27 06:18:09,636 INFO L168 Benchmark]: Toolchain (without parser) took 462.00 ms. Allocated memory is still 65.0 MB. Free memory was 43.4 MB in the beginning and 44.7 MB in the end (delta: -1.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-27 06:18:09,638 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 65.0 MB. Free memory was 45.8 MB in the beginning and 45.7 MB in the end (delta: 40.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:18:09,639 INFO L168 Benchmark]: CACSL2BoogieTranslator took 460.01 ms. Allocated memory is still 65.0 MB. Free memory was 43.2 MB in the beginning and 44.7 MB in the end (delta: -1.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-27 06:18:09,640 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 65.0 MB. Free memory was 45.8 MB in the beginning and 45.7 MB in the end (delta: 40.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 460.01 ms. Allocated memory is still 65.0 MB. Free memory was 43.2 MB in the beginning and 44.7 MB in the end (delta: -1.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 06:18:11,306 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:18:11,309 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:18:11,348 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:18:11,349 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:18:11,352 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:18:11,353 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:18:11,362 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:18:11,365 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:18:11,369 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:18:11,370 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:18:11,373 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:18:11,374 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:18:11,376 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:18:11,377 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:18:11,380 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:18:11,381 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:18:11,382 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:18:11,384 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:18:11,389 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:18:11,390 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:18:11,391 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:18:11,393 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:18:11,393 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:18:11,399 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:18:11,400 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:18:11,400 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:18:11,401 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:18:11,402 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:18:11,402 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:18:11,403 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:18:11,403 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:18:11,405 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:18:11,405 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:18:11,406 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:18:11,407 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:18:11,407 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:18:11,408 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:18:11,408 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:18:11,409 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:18:11,410 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:18:11,410 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-08-27 06:18:11,447 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:18:11,447 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:18:11,448 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:18:11,448 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:18:11,450 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:18:11,450 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:18:11,451 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:18:11,451 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:18:11,451 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:18:11,451 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:18:11,452 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:18:11,452 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:18:11,452 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:18:11,453 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:18:11,453 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:18:11,453 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:18:11,453 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:18:11,453 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:18:11,453 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-27 06:18:11,454 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-27 06:18:11,454 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:18:11,454 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:18:11,454 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:18:11,454 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:18:11,454 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:18:11,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:18:11,455 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:18:11,455 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:18:11,455 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-27 06:18:11,455 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-27 06:18:11,456 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:18:11,456 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-27 06:18:11,456 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 702f633b7e7ff05b6cbb070b8858a8adcd841273 [2021-08-27 06:18:11,794 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:18:11,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:18:11,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:18:11,816 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:18:11,817 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:18:11,818 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test21-2.i [2021-08-27 06:18:11,884 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d9e0c27f/a0effb01edad457493bd65353ad2ade5/FLAGa06197f63 [2021-08-27 06:18:12,419 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:18:12,420 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test21-2.i [2021-08-27 06:18:12,438 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d9e0c27f/a0effb01edad457493bd65353ad2ade5/FLAGa06197f63 [2021-08-27 06:18:12,716 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d9e0c27f/a0effb01edad457493bd65353ad2ade5 [2021-08-27 06:18:12,718 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:18:12,719 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:18:12,721 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:18:12,721 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:18:12,727 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:18:12,728 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:18:12" (1/1) ... [2021-08-27 06:18:12,729 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43cda143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:12, skipping insertion in model container [2021-08-27 06:18:12,729 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:18:12" (1/1) ... [2021-08-27 06:18:12,735 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:18:12,787 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:18:13,199 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:18:13,220 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-08-27 06:18:13,232 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:18:13,290 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:18:13,310 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 06:18:13,366 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:18:13,425 INFO L208 MainTranslator]: Completed translation [2021-08-27 06:18:13,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:13 WrapperNode [2021-08-27 06:18:13,426 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:18:13,427 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 06:18:13,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 06:18:13,427 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 06:18:13,436 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:13" (1/1) ... [2021-08-27 06:18:13,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:13" (1/1) ... [2021-08-27 06:18:13,473 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:13" (1/1) ... [2021-08-27 06:18:13,475 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:13" (1/1) ... [2021-08-27 06:18:13,511 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:13" (1/1) ... [2021-08-27 06:18:13,520 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:13" (1/1) ... [2021-08-27 06:18:13,525 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:13" (1/1) ... [2021-08-27 06:18:13,538 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 06:18:13,539 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 06:18:13,539 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 06:18:13,540 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 06:18:13,540 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:13" (1/1) ... [2021-08-27 06:18:13,546 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:18:13,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 06:18:13,563 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-27 06:18:13,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-27 06:18:13,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-27 06:18:13,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 06:18:13,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:18:13,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:18:13,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-08-27 06:18:13,608 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-08-27 06:18:13,608 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-08-27 06:18:13,608 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-08-27 06:18:13,608 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-08-27 06:18:13,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-08-27 06:18:13,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-08-27 06:18:13,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-08-27 06:18:13,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-08-27 06:18:13,609 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:18:13,612 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-08-27 06:18:13,612 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-08-27 06:18:13,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-08-27 06:18:13,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-08-27 06:18:13,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-08-27 06:18:13,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-08-27 06:18:13,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-08-27 06:18:13,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-08-27 06:18:13,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-08-27 06:18:13,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-08-27 06:18:13,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-08-27 06:18:13,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-08-27 06:18:13,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-08-27 06:18:13,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-08-27 06:18:13,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-08-27 06:18:13,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-08-27 06:18:13,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-08-27 06:18:13,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-08-27 06:18:13,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-08-27 06:18:13,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-08-27 06:18:13,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-08-27 06:18:13,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-08-27 06:18:13,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-08-27 06:18:13,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-08-27 06:18:13,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-08-27 06:18:13,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-08-27 06:18:13,616 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-08-27 06:18:13,616 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-08-27 06:18:13,617 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_21 [2021-08-27 06:18:13,617 INFO L138 BoogieDeclarations]: Found implementation of procedure free_21 [2021-08-27 06:18:13,617 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-08-27 06:18:13,617 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-27 06:18:13,618 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-08-27 06:18:13,618 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-08-27 06:18:13,618 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-08-27 06:18:13,619 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-08-27 06:18:13,619 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-08-27 06:18:13,619 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-08-27 06:18:13,619 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-08-27 06:18:13,619 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-08-27 06:18:13,620 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-08-27 06:18:13,620 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-08-27 06:18:13,620 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-08-27 06:18:13,620 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-08-27 06:18:13,620 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-08-27 06:18:13,620 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-08-27 06:18:13,621 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-08-27 06:18:13,621 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-08-27 06:18:13,622 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-08-27 06:18:13,622 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-08-27 06:18:13,622 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-08-27 06:18:13,623 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-08-27 06:18:13,623 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-08-27 06:18:13,623 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-08-27 06:18:13,623 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-08-27 06:18:13,623 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-08-27 06:18:13,623 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-08-27 06:18:13,624 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-08-27 06:18:13,624 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-08-27 06:18:13,624 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-08-27 06:18:13,624 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-08-27 06:18:13,624 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-08-27 06:18:13,624 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-08-27 06:18:13,624 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-08-27 06:18:13,625 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-08-27 06:18:13,625 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-08-27 06:18:13,625 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-08-27 06:18:13,625 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-08-27 06:18:13,626 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-08-27 06:18:13,626 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-08-27 06:18:13,626 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-08-27 06:18:13,626 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-08-27 06:18:13,626 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-08-27 06:18:13,626 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-08-27 06:18:13,626 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-08-27 06:18:13,627 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-08-27 06:18:13,627 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-08-27 06:18:13,627 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-08-27 06:18:13,627 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-08-27 06:18:13,627 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-08-27 06:18:13,627 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-08-27 06:18:13,627 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-08-27 06:18:13,628 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-08-27 06:18:13,628 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-08-27 06:18:13,628 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-08-27 06:18:13,628 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-08-27 06:18:13,628 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-08-27 06:18:13,629 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-08-27 06:18:13,629 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-08-27 06:18:13,629 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-08-27 06:18:13,629 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-08-27 06:18:13,629 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-08-27 06:18:13,629 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-08-27 06:18:13,629 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-08-27 06:18:13,630 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-08-27 06:18:13,630 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-08-27 06:18:13,630 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-08-27 06:18:13,630 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-08-27 06:18:13,630 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-27 06:18:13,630 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-08-27 06:18:13,630 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-08-27 06:18:13,630 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-08-27 06:18:13,631 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-08-27 06:18:13,631 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-08-27 06:18:13,631 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-08-27 06:18:13,631 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-08-27 06:18:13,631 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-08-27 06:18:13,632 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-08-27 06:18:13,632 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-08-27 06:18:13,633 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-08-27 06:18:13,635 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-08-27 06:18:13,635 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-08-27 06:18:13,635 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-08-27 06:18:13,635 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-08-27 06:18:13,636 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-08-27 06:18:13,637 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-08-27 06:18:13,638 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-08-27 06:18:13,638 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-08-27 06:18:13,639 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-08-27 06:18:13,644 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-08-27 06:18:13,645 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-08-27 06:18:13,645 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-08-27 06:18:13,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-08-27 06:18:13,645 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-08-27 06:18:13,645 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-08-27 06:18:13,645 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-08-27 06:18:13,645 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-08-27 06:18:13,646 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-08-27 06:18:13,646 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-08-27 06:18:13,646 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-08-27 06:18:13,646 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-08-27 06:18:13,646 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-08-27 06:18:13,646 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-08-27 06:18:13,646 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-08-27 06:18:13,646 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-08-27 06:18:13,647 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-08-27 06:18:13,647 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-08-27 06:18:13,647 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-08-27 06:18:13,647 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-08-27 06:18:13,647 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-08-27 06:18:13,647 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-08-27 06:18:13,647 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-08-27 06:18:13,647 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-08-27 06:18:13,648 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-27 06:18:13,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-08-27 06:18:13,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-08-27 06:18:13,648 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-08-27 06:18:13,648 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-08-27 06:18:13,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-08-27 06:18:13,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-27 06:18:13,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-08-27 06:18:13,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-08-27 06:18:13,649 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:18:13,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-27 06:18:13,649 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-08-27 06:18:13,650 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-08-27 06:18:13,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-08-27 06:18:13,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-27 06:18:13,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-08-27 06:18:13,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-08-27 06:18:13,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-08-27 06:18:13,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-08-27 06:18:13,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-08-27 06:18:13,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-08-27 06:18:13,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 06:18:13,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-08-27 06:18:13,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-08-27 06:18:13,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-08-27 06:18:13,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-08-27 06:18:13,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-08-27 06:18:13,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-27 06:18:13,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-27 06:18:13,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-08-27 06:18:13,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-08-27 06:18:13,666 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:18:13,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-08-27 06:18:13,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-08-27 06:18:13,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-08-27 06:18:13,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-08-27 06:18:13,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-08-27 06:18:13,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-08-27 06:18:13,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-08-27 06:18:13,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-08-27 06:18:13,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-08-27 06:18:13,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-08-27 06:18:13,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-08-27 06:18:13,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-08-27 06:18:13,668 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-08-27 06:18:13,668 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-08-27 06:18:13,668 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_21 [2021-08-27 06:18:13,668 INFO L130 BoogieDeclarations]: Found specification of procedure free_21 [2021-08-27 06:18:13,668 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-08-27 06:18:13,668 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-27 06:18:13,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-27 06:18:13,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 06:18:13,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-08-27 06:18:13,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 06:18:13,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:18:13,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-08-27 06:18:13,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-08-27 06:18:13,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-08-27 06:18:13,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-08-27 06:18:14,162 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:18:14,398 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:18:14,625 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 06:18:14,626 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-08-27 06:18:14,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:18:14 BoogieIcfgContainer [2021-08-27 06:18:14,629 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 06:18:14,631 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-27 06:18:14,631 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-27 06:18:14,633 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-27 06:18:14,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 06:18:12" (1/3) ... [2021-08-27 06:18:14,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68ea3a4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:18:14, skipping insertion in model container [2021-08-27 06:18:14,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:13" (2/3) ... [2021-08-27 06:18:14,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68ea3a4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:18:14, skipping insertion in model container [2021-08-27 06:18:14,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:18:14" (3/3) ... [2021-08-27 06:18:14,636 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test21-2.i [2021-08-27 06:18:14,640 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-27 06:18:14,641 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 74 error locations. [2021-08-27 06:18:14,680 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-27 06:18:14,686 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-27 06:18:14,686 INFO L340 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2021-08-27 06:18:14,700 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) [2021-08-27 06:18:14,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-08-27 06:18:14,708 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:14,708 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:14,709 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)] === [2021-08-27 06:18:14,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:14,713 INFO L82 PathProgramCache]: Analyzing trace with hash -1560719066, now seen corresponding path program 1 times [2021-08-27 06:18:14,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:14,723 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1834821884] [2021-08-27 06:18:14,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:14,724 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:14,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:14,727 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:14,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-27 06:18:14,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:14,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-27 06:18:14,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:15,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:15,163 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:15,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:15,339 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:15,340 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1834821884] [2021-08-27 06:18:15,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1834821884] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:15,341 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:15,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 10 [2021-08-27 06:18:15,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698556461] [2021-08-27 06:18:15,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-27 06:18:15,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:15,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-27 06:18:15,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-08-27 06:18:15,363 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) [2021-08-27 06:18:15,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:15,509 INFO L93 Difference]: Finished difference Result 52 states and 54 transitions. [2021-08-27 06:18:15,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 06:18:15,511 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 [2021-08-27 06:18:15,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:15,518 INFO L225 Difference]: With dead ends: 52 [2021-08-27 06:18:15,519 INFO L226 Difference]: Without dead ends: 49 [2021-08-27 06:18:15,522 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 109.1ms TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2021-08-27 06:18:15,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-08-27 06:18:15,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2021-08-27 06:18:15,550 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) [2021-08-27 06:18:15,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2021-08-27 06:18:15,553 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 21 [2021-08-27 06:18:15,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:15,554 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2021-08-27 06:18:15,554 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) [2021-08-27 06:18:15,554 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2021-08-27 06:18:15,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-08-27 06:18:15,555 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:15,555 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:15,572 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:15,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:15,765 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)] === [2021-08-27 06:18:15,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:15,766 INFO L82 PathProgramCache]: Analyzing trace with hash 182091269, now seen corresponding path program 1 times [2021-08-27 06:18:15,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:15,766 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1085341360] [2021-08-27 06:18:15,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:15,767 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:15,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:15,768 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:15,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-27 06:18:15,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:15,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:18:15,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:16,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:16,052 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:16,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:16,164 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:16,164 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1085341360] [2021-08-27 06:18:16,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1085341360] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:16,164 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:16,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-27 06:18:16,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294407828] [2021-08-27 06:18:16,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:18:16,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:16,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:18:16,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:18:16,167 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) [2021-08-27 06:18:16,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:16,183 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2021-08-27 06:18:16,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:18:16,184 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 [2021-08-27 06:18:16,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:16,185 INFO L225 Difference]: With dead ends: 49 [2021-08-27 06:18:16,185 INFO L226 Difference]: Without dead ends: 49 [2021-08-27 06:18:16,186 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.1ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:18:16,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-08-27 06:18:16,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 47. [2021-08-27 06:18:16,190 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) [2021-08-27 06:18:16,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2021-08-27 06:18:16,192 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 21 [2021-08-27 06:18:16,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:16,192 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2021-08-27 06:18:16,192 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) [2021-08-27 06:18:16,192 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2021-08-27 06:18:16,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-08-27 06:18:16,193 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:16,193 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:16,210 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:16,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:16,403 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)] === [2021-08-27 06:18:16,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:16,403 INFO L82 PathProgramCache]: Analyzing trace with hash 311173988, now seen corresponding path program 1 times [2021-08-27 06:18:16,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:16,404 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1448695162] [2021-08-27 06:18:16,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:16,404 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:16,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:16,405 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:16,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-27 06:18:16,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:16,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-27 06:18:16,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:16,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:16,755 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:16,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:16,899 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:16,900 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1448695162] [2021-08-27 06:18:16,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1448695162] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:16,900 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:16,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-08-27 06:18:16,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194404629] [2021-08-27 06:18:16,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-27 06:18:16,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:16,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-27 06:18:16,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-27 06:18:16,903 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) [2021-08-27 06:18:16,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:16,947 INFO L93 Difference]: Finished difference Result 45 states and 46 transitions. [2021-08-27 06:18:16,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-27 06:18:16,948 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 [2021-08-27 06:18:16,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:16,950 INFO L225 Difference]: With dead ends: 45 [2021-08-27 06:18:16,950 INFO L226 Difference]: Without dead ends: 45 [2021-08-27 06:18:16,951 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 60.0ms TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-27 06:18:16,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-08-27 06:18:16,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2021-08-27 06:18:16,962 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) [2021-08-27 06:18:16,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2021-08-27 06:18:16,968 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 21 [2021-08-27 06:18:16,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:16,968 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2021-08-27 06:18:16,969 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) [2021-08-27 06:18:16,969 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2021-08-27 06:18:16,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-27 06:18:16,970 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:16,970 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:16,984 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:17,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:17,182 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)] === [2021-08-27 06:18:17,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:17,183 INFO L82 PathProgramCache]: Analyzing trace with hash -1137650385, now seen corresponding path program 1 times [2021-08-27 06:18:17,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:17,185 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1878189910] [2021-08-27 06:18:17,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:17,185 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:17,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:17,186 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:17,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-08-27 06:18:17,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:17,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 13 conjunts are in the unsatisfiable core [2021-08-27 06:18:17,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:17,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:17,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:18,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:18,168 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:18,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1878189910] [2021-08-27 06:18:18,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1878189910] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:18,169 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:18,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 20 [2021-08-27 06:18:18,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300177135] [2021-08-27 06:18:18,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-08-27 06:18:18,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:18,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-08-27 06:18:18,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2021-08-27 06:18:18,172 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) [2021-08-27 06:18:18,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:18,721 INFO L93 Difference]: Finished difference Result 56 states and 57 transitions. [2021-08-27 06:18:18,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-27 06:18:18,722 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 [2021-08-27 06:18:18,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:18,723 INFO L225 Difference]: With dead ends: 56 [2021-08-27 06:18:18,723 INFO L226 Difference]: Without dead ends: 56 [2021-08-27 06:18:18,723 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 581.1ms TimeCoverageRelationStatistics Valid=121, Invalid=635, Unknown=0, NotChecked=0, Total=756 [2021-08-27 06:18:18,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-08-27 06:18:18,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 42. [2021-08-27 06:18:18,727 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) [2021-08-27 06:18:18,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2021-08-27 06:18:18,728 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 22 [2021-08-27 06:18:18,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:18,728 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2021-08-27 06:18:18,729 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) [2021-08-27 06:18:18,729 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2021-08-27 06:18:18,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-27 06:18:18,730 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:18,730 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:18,737 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:18,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:18,933 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)] === [2021-08-27 06:18:18,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:18,933 INFO L82 PathProgramCache]: Analyzing trace with hash -907423160, now seen corresponding path program 1 times [2021-08-27 06:18:18,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:18,934 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [745515408] [2021-08-27 06:18:18,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:18,934 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:18,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:18,937 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:18,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-08-27 06:18:19,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:19,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 13 conjunts are in the unsatisfiable core [2021-08-27 06:18:19,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:19,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-27 06:18:19,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:19,333 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:19,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:19,535 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:19,535 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [745515408] [2021-08-27 06:18:19,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [745515408] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:19,536 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:19,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 10 [2021-08-27 06:18:19,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290860093] [2021-08-27 06:18:19,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-27 06:18:19,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:19,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-27 06:18:19,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-08-27 06:18:19,538 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) [2021-08-27 06:18:19,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:19,708 INFO L93 Difference]: Finished difference Result 51 states and 53 transitions. [2021-08-27 06:18:19,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-27 06:18:19,709 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 [2021-08-27 06:18:19,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:19,710 INFO L225 Difference]: With dead ends: 51 [2021-08-27 06:18:19,710 INFO L226 Difference]: Without dead ends: 51 [2021-08-27 06:18:19,710 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 30 SyntacticMatches, 6 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 153.2ms TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2021-08-27 06:18:19,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-08-27 06:18:19,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-08-27 06:18:19,715 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) [2021-08-27 06:18:19,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 53 transitions. [2021-08-27 06:18:19,716 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 53 transitions. Word has length 23 [2021-08-27 06:18:19,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:19,717 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 53 transitions. [2021-08-27 06:18:19,717 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) [2021-08-27 06:18:19,717 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 53 transitions. [2021-08-27 06:18:19,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-27 06:18:19,718 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:19,718 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:19,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:19,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:19,925 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)] === [2021-08-27 06:18:19,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:19,926 INFO L82 PathProgramCache]: Analyzing trace with hash -1412981785, now seen corresponding path program 1 times [2021-08-27 06:18:19,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:19,926 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1059176530] [2021-08-27 06:18:19,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:19,927 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:19,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:19,928 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:19,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-08-27 06:18:20,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:20,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 06:18:20,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:20,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:20,301 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:20,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:20,473 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:20,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1059176530] [2021-08-27 06:18:20,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1059176530] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:20,474 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:20,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-27 06:18:20,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342242728] [2021-08-27 06:18:20,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:18:20,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:20,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:18:20,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:18:20,476 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) [2021-08-27 06:18:20,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:20,489 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2021-08-27 06:18:20,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:18:20,490 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 [2021-08-27 06:18:20,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:20,491 INFO L225 Difference]: With dead ends: 41 [2021-08-27 06:18:20,491 INFO L226 Difference]: Without dead ends: 41 [2021-08-27 06:18:20,491 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.4ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:18:20,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-08-27 06:18:20,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-08-27 06:18:20,494 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) [2021-08-27 06:18:20,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 41 transitions. [2021-08-27 06:18:20,495 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 41 transitions. Word has length 23 [2021-08-27 06:18:20,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:20,495 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 41 transitions. [2021-08-27 06:18:20,495 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) [2021-08-27 06:18:20,496 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2021-08-27 06:18:20,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-08-27 06:18:20,496 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:20,496 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:20,503 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:20,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:20,697 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)] === [2021-08-27 06:18:20,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:20,698 INFO L82 PathProgramCache]: Analyzing trace with hash -298029978, now seen corresponding path program 1 times [2021-08-27 06:18:20,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:20,698 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1255397559] [2021-08-27 06:18:20,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:20,698 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:20,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:20,699 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:20,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-08-27 06:18:20,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:20,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-27 06:18:20,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:20,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:20,996 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:21,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:21,187 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:21,187 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1255397559] [2021-08-27 06:18:21,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1255397559] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:21,187 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:21,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-27 06:18:21,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141441378] [2021-08-27 06:18:21,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 06:18:21,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:21,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 06:18:21,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 06:18:21,189 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) [2021-08-27 06:18:21,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:21,215 INFO L93 Difference]: Finished difference Result 44 states and 43 transitions. [2021-08-27 06:18:21,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 06:18:21,215 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 [2021-08-27 06:18:21,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:21,216 INFO L225 Difference]: With dead ends: 44 [2021-08-27 06:18:21,216 INFO L226 Difference]: Without dead ends: 29 [2021-08-27 06:18:21,216 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 06:18:21,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-08-27 06:18:21,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-08-27 06:18:21,218 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) [2021-08-27 06:18:21,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 28 transitions. [2021-08-27 06:18:21,219 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 28 transitions. Word has length 25 [2021-08-27 06:18:21,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:21,219 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 28 transitions. [2021-08-27 06:18:21,219 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) [2021-08-27 06:18:21,220 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 28 transitions. [2021-08-27 06:18:21,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-08-27 06:18:21,220 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:21,220 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:21,229 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-08-27 06:18:21,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:21,427 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)] === [2021-08-27 06:18:21,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:21,428 INFO L82 PathProgramCache]: Analyzing trace with hash -339267371, now seen corresponding path program 1 times [2021-08-27 06:18:21,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:21,428 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [122765470] [2021-08-27 06:18:21,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:21,428 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:21,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:21,429 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:21,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-08-27 06:18:21,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:21,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 23 conjunts are in the unsatisfiable core [2021-08-27 06:18:21,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:22,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:22,026 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:26,333 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:26,333 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [122765470] [2021-08-27 06:18:26,333 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:18:26,334 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1132098388] [2021-08-27 06:18:26,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:26,334 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-08-27 06:18:26,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2021-08-27 06:18:26,359 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) [2021-08-27 06:18:26,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-08-27 06:18:26,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:26,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 25 conjunts are in the unsatisfiable core [2021-08-27 06:18:26,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:26,850 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-08-27 06:18:26,850 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 [2021-08-27 06:18:31,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:31,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:35,652 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:18:35,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [106842435] [2021-08-27 06:18:35,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:35,653 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 06:18:35,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 06:18:35,661 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) [2021-08-27 06:18:35,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-08-27 06:18:35,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:35,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 22 conjunts are in the unsatisfiable core [2021-08-27 06:18:35,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:36,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:36,213 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:42,516 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:18:42,516 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:42,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-08-27 06:18:42,516 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-08-27 06:18:42,517 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-08-27 06:18:42,521 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-08-27 06:18:42,523 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-08-27 06:18:42,524 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-08-27 06:18:42,524 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-08-27 06:18:42,524 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-08-27 06:18:42,524 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-08-27 06:18:42,524 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-08-27 06:18:42,524 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-08-27 06:18:42,525 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-08-27 06:18:42,525 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-08-27 06:18:42,525 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-08-27 06:18:42,525 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-08-27 06:18:42,525 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-08-27 06:18:42,525 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:18:42,526 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:18:42,526 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-08-27 06:18:42,526 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-08-27 06:18:42,526 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-08-27 06:18:42,526 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-08-27 06:18:42,526 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-08-27 06:18:42,526 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-08-27 06:18:42,527 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:18:42,527 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:18:42,527 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:18:42,527 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:18:42,527 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:18:42,527 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:18:42,528 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-08-27 06:18:42,528 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-08-27 06:18:42,528 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-08-27 06:18:42,528 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-08-27 06:18:42,528 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:18:42,528 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:18:42,529 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-08-27 06:18:42,529 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-08-27 06:18:42,529 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-08-27 06:18:42,529 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-08-27 06:18:42,529 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-08-27 06:18:42,529 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-08-27 06:18:42,529 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:18:42,530 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:18:42,530 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-08-27 06:18:42,530 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-08-27 06:18:42,530 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:18:42,530 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:18:42,531 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:18:42,531 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:18:42,531 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:18:42,531 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:18:42,531 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-08-27 06:18:42,531 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-08-27 06:18:42,532 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-08-27 06:18:42,532 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-08-27 06:18:42,532 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-08-27 06:18:42,532 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-08-27 06:18:42,532 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-08-27 06:18:42,532 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-08-27 06:18:42,533 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:18:42,533 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:18:42,533 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:18:42,533 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:18:42,533 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:18:42,533 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:18:42,534 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-08-27 06:18:42,534 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-08-27 06:18:42,534 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:18:42,534 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:18:42,534 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:18:42,534 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:18:42,534 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-08-27 06:18:42,535 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-08-27 06:18:42,535 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_21Err0ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:18:42,535 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_21Err1ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:18:42,535 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_21Err2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:18:42,572 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:42,759 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:42,955 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:43,152 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 [2021-08-27 06:18:43,157 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-27 06:18:43,159 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-08-27 06:18:43,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 06:18:43 BoogieIcfgContainer [2021-08-27 06:18:43,165 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-27 06:18:43,166 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 06:18:43,166 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 06:18:43,166 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 06:18:43,167 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:18:14" (3/4) ... [2021-08-27 06:18:43,168 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 06:18:43,169 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 06:18:43,169 INFO L168 Benchmark]: Toolchain (without parser) took 30449.89 ms. Allocated memory was 52.4 MB in the beginning and 195.0 MB in the end (delta: 142.6 MB). Free memory was 27.5 MB in the beginning and 80.4 MB in the end (delta: -52.9 MB). Peak memory consumption was 89.6 MB. Max. memory is 16.1 GB. [2021-08-27 06:18:43,170 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 52.4 MB. Free memory was 33.9 MB in the beginning and 33.8 MB in the end (delta: 38.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:18:43,170 INFO L168 Benchmark]: CACSL2BoogieTranslator took 705.72 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 27.2 MB in the beginning and 41.4 MB in the end (delta: -14.2 MB). Peak memory consumption was 12.9 MB. Max. memory is 16.1 GB. [2021-08-27 06:18:43,170 INFO L168 Benchmark]: Boogie Preprocessor took 110.91 ms. Allocated memory is still 62.9 MB. Free memory was 41.4 MB in the beginning and 36.8 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 06:18:43,171 INFO L168 Benchmark]: RCFGBuilder took 1090.38 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 36.8 MB in the beginning and 38.9 MB in the end (delta: -2.1 MB). Peak memory consumption was 23.5 MB. Max. memory is 16.1 GB. [2021-08-27 06:18:43,171 INFO L168 Benchmark]: TraceAbstraction took 28534.73 ms. Allocated memory was 75.5 MB in the beginning and 195.0 MB in the end (delta: 119.5 MB). Free memory was 38.6 MB in the beginning and 80.4 MB in the end (delta: -41.8 MB). Peak memory consumption was 77.7 MB. Max. memory is 16.1 GB. [2021-08-27 06:18:43,171 INFO L168 Benchmark]: Witness Printer took 2.66 ms. Allocated memory is still 195.0 MB. Free memory is still 80.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:18:43,173 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 52.4 MB. Free memory was 33.9 MB in the beginning and 33.8 MB in the end (delta: 38.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 705.72 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 27.2 MB in the beginning and 41.4 MB in the end (delta: -14.2 MB). Peak memory consumption was 12.9 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 110.91 ms. Allocated memory is still 62.9 MB. Free memory was 41.4 MB in the beginning and 36.8 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1090.38 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 36.8 MB in the beginning and 38.9 MB in the end (delta: -2.1 MB). Peak memory consumption was 23.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 28534.73 ms. Allocated memory was 75.5 MB in the beginning and 195.0 MB in the end (delta: 119.5 MB). Free memory was 38.6 MB in the beginning and 80.4 MB in the end (delta: -41.8 MB). Peak memory consumption was 77.7 MB. Max. memory is 16.1 GB. * Witness Printer took 2.66 ms. Allocated memory is still 195.0 MB. Free memory is still 80.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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: 28477.2ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 16.2ms, AutomataDifference: 1011.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 216 SDtfs, 123 SDslu, 976 SDs, 0 SdLazy, 610 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 456.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 319 GetRequests, 250 SyntacticMatches, 6 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 936.3ms Time, 0.0ms 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, 0.0ms DumpTime, AutomataMinimizationStatistics: 59.0ms AutomataMinimizationTime, 7 MinimizatonAttempts, 24 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 73.3ms SsaConstructionTime, 157.5ms SatisfiabilityAnalysisTime, 2600.6ms 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 [2021-08-27 06:18:43,199 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...