./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test10-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test10-2.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 43035c6e49855e15ec870efd7c9282b8311d43cd ................................................................................................................................... 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_test10-2.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 43035c6e49855e15ec870efd7c9282b8311d43cd ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-30 17:43:57,100 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-30 17:43:57,101 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-30 17:43:57,118 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-30 17:43:57,120 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-30 17:43:57,123 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-30 17:43:57,127 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-30 17:43:57,134 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-30 17:43:57,141 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-30 17:43:57,145 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-30 17:43:57,146 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-30 17:43:57,149 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-30 17:43:57,149 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-30 17:43:57,151 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-30 17:43:57,153 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-30 17:43:57,154 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-30 17:43:57,155 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-30 17:43:57,156 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-30 17:43:57,159 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-30 17:43:57,163 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-30 17:43:57,164 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-30 17:43:57,165 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-30 17:43:57,166 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-30 17:43:57,167 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-30 17:43:57,172 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-30 17:43:57,172 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-30 17:43:57,172 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-30 17:43:57,174 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-30 17:43:57,174 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-30 17:43:57,175 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-30 17:43:57,175 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-30 17:43:57,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-30 17:43:57,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-30 17:43:57,177 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-30 17:43:57,178 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-30 17:43:57,179 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-30 17:43:57,179 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-30 17:43:57,179 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-30 17:43:57,180 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-30 17:43:57,181 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-30 17:43:57,182 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-30 17:43:57,185 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-08-30 17:43:57,214 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-30 17:43:57,215 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-30 17:43:57,215 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-30 17:43:57,215 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-30 17:43:57,217 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-30 17:43:57,217 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-30 17:43:57,217 INFO L138 SettingsManager]: * Use SBE=true [2021-08-30 17:43:57,217 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-30 17:43:57,217 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-30 17:43:57,218 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-30 17:43:57,218 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-30 17:43:57,218 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-30 17:43:57,219 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-30 17:43:57,219 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-30 17:43:57,219 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-30 17:43:57,219 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-30 17:43:57,219 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-30 17:43:57,220 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-30 17:43:57,220 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-30 17:43:57,220 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-30 17:43:57,220 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-30 17:43:57,220 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-30 17:43:57,220 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-30 17:43:57,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 17:43:57,221 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-30 17:43:57,221 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-30 17:43:57,221 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-30 17:43:57,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-30 17:43:57,221 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-30 17:43:57,222 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43035c6e49855e15ec870efd7c9282b8311d43cd [2021-08-30 17:43:57,486 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-30 17:43:57,510 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-30 17:43:57,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-30 17:43:57,513 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-30 17:43:57,514 INFO L275 PluginConnector]: CDTParser initialized [2021-08-30 17:43:57,515 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test10-2.i [2021-08-30 17:43:57,555 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76136ba27/19b3d172464b4f638f824f4785a93be2/FLAG5c27ae1b9 [2021-08-30 17:43:57,937 INFO L306 CDTParser]: Found 1 translation units. [2021-08-30 17:43:57,938 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test10-2.i [2021-08-30 17:43:57,950 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76136ba27/19b3d172464b4f638f824f4785a93be2/FLAG5c27ae1b9 [2021-08-30 17:43:57,961 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76136ba27/19b3d172464b4f638f824f4785a93be2 [2021-08-30 17:43:57,964 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-30 17:43:57,965 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-30 17:43:57,967 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-30 17:43:57,967 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-30 17:43:57,978 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-30 17:43:57,978 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:43:57" (1/1) ... [2021-08-30 17:43:57,979 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35627d8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:43:57, skipping insertion in model container [2021-08-30 17:43:57,979 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:43:57" (1/1) ... [2021-08-30 17:43:57,984 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-30 17:43:58,023 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-30 17:43:58,354 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 17:43:58,367 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-08-30 17:43:58,368 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@21dfddbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:43:58, skipping insertion in model container [2021-08-30 17:43:58,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-30 17:43:58,369 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-08-30 17:43:58,371 INFO L158 Benchmark]: Toolchain (without parser) took 405.08ms. Allocated memory was 48.2MB in the beginning and 65.0MB in the end (delta: 16.8MB). Free memory was 22.2MB in the beginning and 44.0MB in the end (delta: -21.8MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2021-08-30 17:43:58,372 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 48.2MB. Free memory was 30.1MB in the beginning and 30.0MB in the end (delta: 52.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 17:43:58,373 INFO L158 Benchmark]: CACSL2BoogieTranslator took 402.09ms. Allocated memory was 48.2MB in the beginning and 65.0MB in the end (delta: 16.8MB). Free memory was 22.0MB in the beginning and 44.0MB in the end (delta: -22.0MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2021-08-30 17:43:58,375 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 48.2MB. Free memory was 30.1MB in the beginning and 30.0MB in the end (delta: 52.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 402.09ms. Allocated memory was 48.2MB in the beginning and 65.0MB in the end (delta: 16.8MB). Free memory was 22.0MB in the beginning and 44.0MB in the end (delta: -22.0MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-30 17:43:59,671 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-30 17:43:59,673 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-30 17:43:59,691 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-30 17:43:59,691 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-30 17:43:59,692 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-30 17:43:59,693 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-30 17:43:59,694 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-30 17:43:59,695 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-30 17:43:59,696 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-30 17:43:59,701 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-30 17:43:59,705 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-30 17:43:59,705 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-30 17:43:59,709 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-30 17:43:59,710 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-30 17:43:59,712 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-30 17:43:59,714 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-30 17:43:59,715 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-30 17:43:59,718 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-30 17:43:59,720 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-30 17:43:59,722 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-30 17:43:59,722 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-30 17:43:59,724 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-30 17:43:59,725 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-30 17:43:59,728 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-30 17:43:59,728 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-30 17:43:59,728 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-30 17:43:59,731 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-30 17:43:59,733 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-30 17:43:59,734 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-30 17:43:59,734 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-30 17:43:59,735 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-30 17:43:59,736 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-30 17:43:59,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-30 17:43:59,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-30 17:43:59,750 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-30 17:43:59,751 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-30 17:43:59,751 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-30 17:43:59,751 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-30 17:43:59,752 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-30 17:43:59,752 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-30 17:43:59,756 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-08-30 17:43:59,779 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-30 17:43:59,779 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-30 17:43:59,780 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-30 17:43:59,780 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-30 17:43:59,781 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-30 17:43:59,782 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-30 17:43:59,782 INFO L138 SettingsManager]: * Use SBE=true [2021-08-30 17:43:59,782 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-30 17:43:59,782 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-30 17:43:59,782 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-30 17:43:59,783 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-30 17:43:59,783 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-30 17:43:59,783 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-30 17:43:59,783 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-30 17:43:59,784 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-30 17:43:59,784 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-30 17:43:59,784 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-30 17:43:59,798 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-30 17:43:59,798 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-30 17:43:59,798 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-30 17:43:59,798 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-30 17:43:59,799 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-30 17:43:59,799 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-30 17:43:59,799 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-30 17:43:59,799 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-30 17:43:59,799 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 17:43:59,800 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-30 17:43:59,800 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-30 17:43:59,800 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-30 17:43:59,800 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-30 17:43:59,800 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-30 17:43:59,800 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-30 17:43:59,801 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43035c6e49855e15ec870efd7c9282b8311d43cd [2021-08-30 17:44:00,053 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-30 17:44:00,066 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-30 17:44:00,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-30 17:44:00,069 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-30 17:44:00,069 INFO L275 PluginConnector]: CDTParser initialized [2021-08-30 17:44:00,070 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test10-2.i [2021-08-30 17:44:00,121 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e990787ce/9a28cca90beb48f0812fa7c3dee8a992/FLAG8b0252292 [2021-08-30 17:44:00,535 INFO L306 CDTParser]: Found 1 translation units. [2021-08-30 17:44:00,535 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test10-2.i [2021-08-30 17:44:00,543 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e990787ce/9a28cca90beb48f0812fa7c3dee8a992/FLAG8b0252292 [2021-08-30 17:44:00,552 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e990787ce/9a28cca90beb48f0812fa7c3dee8a992 [2021-08-30 17:44:00,553 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-30 17:44:00,554 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-30 17:44:00,555 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-30 17:44:00,556 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-30 17:44:00,562 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-30 17:44:00,562 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:44:00" (1/1) ... [2021-08-30 17:44:00,563 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@792666b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:44:00, skipping insertion in model container [2021-08-30 17:44:00,563 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:44:00" (1/1) ... [2021-08-30 17:44:00,567 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-30 17:44:00,595 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-30 17:44:00,898 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 17:44:00,913 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-08-30 17:44:00,924 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-30 17:44:00,959 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 17:44:00,963 INFO L203 MainTranslator]: Completed pre-run [2021-08-30 17:44:00,991 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 17:44:01,028 INFO L208 MainTranslator]: Completed translation [2021-08-30 17:44:01,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:44:01 WrapperNode [2021-08-30 17:44:01,029 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-30 17:44:01,030 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-30 17:44:01,030 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-30 17:44:01,030 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-30 17:44:01,037 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:44:01" (1/1) ... [2021-08-30 17:44:01,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:44:01" (1/1) ... [2021-08-30 17:44:01,068 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:44:01" (1/1) ... [2021-08-30 17:44:01,070 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:44:01" (1/1) ... [2021-08-30 17:44:01,095 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:44:01" (1/1) ... [2021-08-30 17:44:01,109 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:44:01" (1/1) ... [2021-08-30 17:44:01,113 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:44:01" (1/1) ... [2021-08-30 17:44:01,125 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-30 17:44:01,126 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-30 17:44:01,126 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-30 17:44:01,126 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-30 17:44:01,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:44:01" (1/1) ... [2021-08-30 17:44:01,141 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 17:44:01,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 17:44:01,156 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-30 17:44:01,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-30 17:44:01,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-30 17:44:01,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-30 17:44:01,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-08-30 17:44:01,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-08-30 17:44:01,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-08-30 17:44:01,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-08-30 17:44:01,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-08-30 17:44:01,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-08-30 17:44:01,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-08-30 17:44:01,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-08-30 17:44:01,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-08-30 17:44:01,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-08-30 17:44:01,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-08-30 17:44:01,191 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-08-30 17:44:01,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-08-30 17:44:01,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-08-30 17:44:01,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-08-30 17:44:01,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-08-30 17:44:01,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-08-30 17:44:01,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-08-30 17:44:01,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-08-30 17:44:01,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-08-30 17:44:01,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-08-30 17:44:01,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-08-30 17:44:01,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-08-30 17:44:01,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-08-30 17:44:01,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-08-30 17:44:01,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-08-30 17:44:01,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-08-30 17:44:01,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-08-30 17:44:01,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-08-30 17:44:01,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-08-30 17:44:01,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-08-30 17:44:01,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-08-30 17:44:01,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-08-30 17:44:01,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-08-30 17:44:01,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-08-30 17:44:01,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-08-30 17:44:01,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-08-30 17:44:01,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-08-30 17:44:01,194 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-08-30 17:44:01,194 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-08-30 17:44:01,194 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_10 [2021-08-30 17:44:01,195 INFO L138 BoogieDeclarations]: Found implementation of procedure free_10 [2021-08-30 17:44:01,195 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-08-30 17:44:01,195 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-30 17:44:01,195 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-08-30 17:44:01,196 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-08-30 17:44:01,196 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-08-30 17:44:01,196 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-08-30 17:44:01,196 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-08-30 17:44:01,196 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-08-30 17:44:01,196 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-08-30 17:44:01,196 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-08-30 17:44:01,197 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-08-30 17:44:01,197 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-08-30 17:44:01,197 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-08-30 17:44:01,197 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-08-30 17:44:01,197 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-08-30 17:44:01,198 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-08-30 17:44:01,198 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-08-30 17:44:01,198 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-08-30 17:44:01,198 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-08-30 17:44:01,199 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-08-30 17:44:01,199 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-08-30 17:44:01,199 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-08-30 17:44:01,199 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-08-30 17:44:01,199 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-08-30 17:44:01,199 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-08-30 17:44:01,200 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-08-30 17:44:01,200 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-08-30 17:44:01,200 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-08-30 17:44:01,200 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-08-30 17:44:01,200 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-08-30 17:44:01,200 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-08-30 17:44:01,200 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-08-30 17:44:01,200 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-08-30 17:44:01,201 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-08-30 17:44:01,201 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-08-30 17:44:01,201 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-08-30 17:44:01,201 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-08-30 17:44:01,201 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-08-30 17:44:01,201 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-08-30 17:44:01,201 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-08-30 17:44:01,202 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-08-30 17:44:01,202 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-08-30 17:44:01,202 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-08-30 17:44:01,202 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-08-30 17:44:01,202 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-08-30 17:44:01,202 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-08-30 17:44:01,202 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-08-30 17:44:01,202 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-08-30 17:44:01,202 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-08-30 17:44:01,202 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-08-30 17:44:01,203 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-08-30 17:44:01,203 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-08-30 17:44:01,203 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-08-30 17:44:01,203 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-08-30 17:44:01,203 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-08-30 17:44:01,203 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-08-30 17:44:01,203 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-08-30 17:44:01,203 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-08-30 17:44:01,204 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-08-30 17:44:01,204 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-08-30 17:44:01,204 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-08-30 17:44:01,204 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-08-30 17:44:01,204 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-08-30 17:44:01,204 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-08-30 17:44:01,204 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-08-30 17:44:01,204 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-08-30 17:44:01,204 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-08-30 17:44:01,205 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-08-30 17:44:01,205 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-30 17:44:01,205 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-08-30 17:44:01,205 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-08-30 17:44:01,205 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-08-30 17:44:01,205 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-08-30 17:44:01,205 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-08-30 17:44:01,205 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-08-30 17:44:01,206 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-08-30 17:44:01,206 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-08-30 17:44:01,206 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-08-30 17:44:01,206 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-08-30 17:44:01,207 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-08-30 17:44:01,208 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-08-30 17:44:01,208 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-08-30 17:44:01,209 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-08-30 17:44:01,209 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-08-30 17:44:01,210 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-08-30 17:44:01,210 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-08-30 17:44:01,210 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-08-30 17:44:01,210 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-08-30 17:44:01,211 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-08-30 17:44:01,219 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-08-30 17:44:01,219 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-08-30 17:44:01,219 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-08-30 17:44:01,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-08-30 17:44:01,219 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-08-30 17:44:01,219 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-08-30 17:44:01,219 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-08-30 17:44:01,219 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-08-30 17:44:01,219 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-08-30 17:44:01,220 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-08-30 17:44:01,220 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-08-30 17:44:01,220 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-08-30 17:44:01,220 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-08-30 17:44:01,220 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-08-30 17:44:01,220 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-08-30 17:44:01,220 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-08-30 17:44:01,220 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-08-30 17:44:01,220 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-08-30 17:44:01,220 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-08-30 17:44:01,221 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-08-30 17:44:01,221 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-08-30 17:44:01,221 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-08-30 17:44:01,221 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-08-30 17:44:01,221 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-08-30 17:44:01,221 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-30 17:44:01,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-08-30 17:44:01,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-08-30 17:44:01,221 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-08-30 17:44:01,221 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-08-30 17:44:01,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-08-30 17:44:01,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-30 17:44:01,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-08-30 17:44:01,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-08-30 17:44:01,222 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-08-30 17:44:01,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-30 17:44:01,222 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-08-30 17:44:01,222 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-08-30 17:44:01,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-08-30 17:44:01,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-30 17:44:01,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-08-30 17:44:01,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-08-30 17:44:01,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-08-30 17:44:01,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-08-30 17:44:01,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-08-30 17:44:01,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-08-30 17:44:01,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-30 17:44:01,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-08-30 17:44:01,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-08-30 17:44:01,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-08-30 17:44:01,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-08-30 17:44:01,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-08-30 17:44:01,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-30 17:44:01,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-30 17:44:01,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-08-30 17:44:01,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-08-30 17:44:01,224 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-08-30 17:44:01,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-08-30 17:44:01,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-08-30 17:44:01,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-08-30 17:44:01,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-08-30 17:44:01,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-08-30 17:44:01,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-08-30 17:44:01,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-08-30 17:44:01,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-08-30 17:44:01,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-08-30 17:44:01,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-08-30 17:44:01,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-08-30 17:44:01,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-08-30 17:44:01,225 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-08-30 17:44:01,225 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-08-30 17:44:01,225 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_10 [2021-08-30 17:44:01,225 INFO L130 BoogieDeclarations]: Found specification of procedure free_10 [2021-08-30 17:44:01,225 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-08-30 17:44:01,226 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-30 17:44:01,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-30 17:44:01,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-30 17:44:01,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-08-30 17:44:01,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-30 17:44:01,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-08-30 17:44:01,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-08-30 17:44:01,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-08-30 17:44:01,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-08-30 17:44:01,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-08-30 17:44:01,556 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-30 17:44:01,613 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-30 17:44:01,703 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-30 17:44:01,703 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-08-30 17:44:01,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:44:01 BoogieIcfgContainer [2021-08-30 17:44:01,705 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-30 17:44:01,706 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-30 17:44:01,706 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-30 17:44:01,707 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-30 17:44:01,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 05:44:00" (1/3) ... [2021-08-30 17:44:01,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a237fdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:44:01, skipping insertion in model container [2021-08-30 17:44:01,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:44:01" (2/3) ... [2021-08-30 17:44:01,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a237fdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:44:01, skipping insertion in model container [2021-08-30 17:44:01,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:44:01" (3/3) ... [2021-08-30 17:44:01,711 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test10-2.i [2021-08-30 17:44:01,714 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-30 17:44:01,715 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 113 error locations. [2021-08-30 17:44:01,740 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-30 17:44:01,745 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-30 17:44:01,745 INFO L340 AbstractCegarLoop]: Starting to check reachability of 113 error locations. [2021-08-30 17:44:01,763 INFO L276 IsEmpty]: Start isEmpty. Operand has 175 states, 86 states have (on average 1.802325581395349) internal successors, (155), 146 states have internal predecessors, (155), 16 states have call successors, (16), 12 states have call predecessors, (16), 12 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-08-30 17:44:01,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-30 17:44:01,769 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:44:01,769 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:44:01,769 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-08-30 17:44:01,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:44:01,775 INFO L82 PathProgramCache]: Analyzing trace with hash 307732063, now seen corresponding path program 1 times [2021-08-30 17:44:01,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:44:01,782 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [352772854] [2021-08-30 17:44:01,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:44:01,783 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:44:01,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:44:01,792 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:44:01,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-30 17:44:01,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:44:01,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-30 17:44:01,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:44:02,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:44:02,071 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:44:02,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:44:02,155 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:44:02,155 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [352772854] [2021-08-30 17:44:02,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [352772854] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:44:02,156 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:44:02,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-30 17:44:02,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464685936] [2021-08-30 17:44:02,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-30 17:44:02,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:44:02,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-30 17:44:02,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 17:44:02,188 INFO L87 Difference]: Start difference. First operand has 175 states, 86 states have (on average 1.802325581395349) internal successors, (155), 146 states have internal predecessors, (155), 16 states have call successors, (16), 12 states have call predecessors, (16), 12 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 17:44:02,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:44:02,560 INFO L93 Difference]: Finished difference Result 163 states and 181 transitions. [2021-08-30 17:44:02,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-30 17:44:02,562 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 16 [2021-08-30 17:44:02,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:44:02,568 INFO L225 Difference]: With dead ends: 163 [2021-08-30 17:44:02,568 INFO L226 Difference]: Without dead ends: 160 [2021-08-30 17:44:02,569 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.28ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 17:44:02,571 INFO L928 BasicCegarLoop]: 24 mSDtfsCounter, 53 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 269.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.72ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 329.67ms IncrementalHoareTripleChecker+Time [2021-08-30 17:44:02,571 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 92 Invalid, 374 Unknown, 0 Unchecked, 7.72ms Time], IncrementalHoareTripleChecker [1 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 329.67ms Time] [2021-08-30 17:44:02,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-08-30 17:44:02,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 106. [2021-08-30 17:44:02,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 48 states have (on average 1.9583333333333333) internal successors, (94), 90 states have internal predecessors, (94), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (12), 9 states have call predecessors, (12), 8 states have call successors, (12) [2021-08-30 17:44:02,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 115 transitions. [2021-08-30 17:44:02,602 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 115 transitions. Word has length 16 [2021-08-30 17:44:02,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:44:02,603 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 115 transitions. [2021-08-30 17:44:02,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 17:44:02,603 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 115 transitions. [2021-08-30 17:44:02,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-30 17:44:02,604 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:44:02,604 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:44:02,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-30 17:44:02,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:44:02,813 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-08-30 17:44:02,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:44:02,813 INFO L82 PathProgramCache]: Analyzing trace with hash 2050542398, now seen corresponding path program 1 times [2021-08-30 17:44:02,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:44:02,814 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1793747870] [2021-08-30 17:44:02,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:44:02,814 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:44:02,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:44:02,815 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:44:02,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-30 17:44:02,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:44:02,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-30 17:44:02,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:44:02,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:44:02,984 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:44:03,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:44:03,039 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:44:03,040 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1793747870] [2021-08-30 17:44:03,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1793747870] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:44:03,040 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:44:03,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-30 17:44:03,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460574794] [2021-08-30 17:44:03,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-30 17:44:03,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:44:03,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-30 17:44:03,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 17:44:03,042 INFO L87 Difference]: Start difference. First operand 106 states and 115 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-30 17:44:03,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:44:03,304 INFO L93 Difference]: Finished difference Result 156 states and 173 transitions. [2021-08-30 17:44:03,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-30 17:44:03,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 16 [2021-08-30 17:44:03,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:44:03,306 INFO L225 Difference]: With dead ends: 156 [2021-08-30 17:44:03,306 INFO L226 Difference]: Without dead ends: 153 [2021-08-30 17:44:03,306 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.54ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 17:44:03,307 INFO L928 BasicCegarLoop]: 27 mSDtfsCounter, 65 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 188.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.75ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 248.91ms IncrementalHoareTripleChecker+Time [2021-08-30 17:44:03,307 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 32 Invalid, 232 Unknown, 0 Unchecked, 1.75ms Time], IncrementalHoareTripleChecker [10 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 248.91ms Time] [2021-08-30 17:44:03,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-08-30 17:44:03,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 102. [2021-08-30 17:44:03,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 45 states have (on average 2.0) internal successors, (90), 87 states have internal predecessors, (90), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-08-30 17:44:03,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 107 transitions. [2021-08-30 17:44:03,315 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 107 transitions. Word has length 16 [2021-08-30 17:44:03,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:44:03,315 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 107 transitions. [2021-08-30 17:44:03,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-30 17:44:03,316 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 107 transitions. [2021-08-30 17:44:03,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-08-30 17:44:03,316 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:44:03,316 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:44:03,325 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-08-30 17:44:03,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:44:03,517 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-08-30 17:44:03,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:44:03,517 INFO L82 PathProgramCache]: Analyzing trace with hash 503598229, now seen corresponding path program 1 times [2021-08-30 17:44:03,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:44:03,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1242420278] [2021-08-30 17:44:03,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:44:03,518 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:44:03,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:44:03,520 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:44:03,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-30 17:44:03,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:44:03,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-30 17:44:03,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:44:03,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-30 17:44:03,751 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-08-30 17:44:03,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 19 [2021-08-30 17:44:03,763 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:44:03,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:44:03,905 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:44:03,905 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:44:03,905 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1242420278] [2021-08-30 17:44:03,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1242420278] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-30 17:44:03,906 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-30 17:44:03,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2021-08-30 17:44:03,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267178799] [2021-08-30 17:44:03,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-30 17:44:03,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:44:03,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-30 17:44:03,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-30 17:44:03,907 INFO L87 Difference]: Start difference. First operand 102 states and 107 transitions. Second operand has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-30 17:44:04,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:44:04,345 INFO L93 Difference]: Finished difference Result 162 states and 180 transitions. [2021-08-30 17:44:04,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-30 17:44:04,345 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 19 [2021-08-30 17:44:04,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:44:04,347 INFO L225 Difference]: With dead ends: 162 [2021-08-30 17:44:04,347 INFO L226 Difference]: Without dead ends: 162 [2021-08-30 17:44:04,347 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 5 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 79.23ms TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-08-30 17:44:04,348 INFO L928 BasicCegarLoop]: 20 mSDtfsCounter, 135 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 324.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.03ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 229 IncrementalHoareTripleChecker+Unchecked, 400.48ms IncrementalHoareTripleChecker+Time [2021-08-30 17:44:04,348 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 58 Invalid, 849 Unknown, 0 Unchecked, 4.03ms Time], IncrementalHoareTripleChecker [28 Valid, 592 Invalid, 0 Unknown, 229 Unchecked, 400.48ms Time] [2021-08-30 17:44:04,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-08-30 17:44:04,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 113. [2021-08-30 17:44:04,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 56 states have (on average 1.8928571428571428) internal successors, (106), 95 states have internal predecessors, (106), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (14), 11 states have call predecessors, (14), 9 states have call successors, (14) [2021-08-30 17:44:04,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 130 transitions. [2021-08-30 17:44:04,355 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 130 transitions. Word has length 19 [2021-08-30 17:44:04,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:44:04,355 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 130 transitions. [2021-08-30 17:44:04,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-30 17:44:04,355 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 130 transitions. [2021-08-30 17:44:04,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-08-30 17:44:04,356 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:44:04,356 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:44:04,375 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-08-30 17:44:04,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:44:04,563 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting entry_pointErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-08-30 17:44:04,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:44:04,563 INFO L82 PathProgramCache]: Analyzing trace with hash 503598230, now seen corresponding path program 1 times [2021-08-30 17:44:04,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:44:04,564 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [147995893] [2021-08-30 17:44:04,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:44:04,564 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:44:04,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:44:04,565 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:44:04,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-08-30 17:44:04,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:44:04,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 16 conjunts are in the unsatisfiable core [2021-08-30 17:44:04,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:44:04,693 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-30 17:44:04,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-30 17:44:06,875 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-30 17:44:06,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-08-30 17:44:06,884 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-08-30 17:44:06,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 24 [2021-08-30 17:44:06,905 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:44:06,905 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:44:15,620 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 29 [2021-08-30 17:44:15,684 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:44:15,684 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:44:15,684 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [147995893] [2021-08-30 17:44:15,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [147995893] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-30 17:44:15,684 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-30 17:44:15,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2021-08-30 17:44:15,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381809766] [2021-08-30 17:44:15,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-08-30 17:44:15,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:44:15,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-08-30 17:44:15,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=198, Unknown=4, NotChecked=0, Total=240 [2021-08-30 17:44:15,686 INFO L87 Difference]: Start difference. First operand 113 states and 130 transitions. Second operand has 16 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 12 states have internal predecessors, (20), 3 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-08-30 17:44:20,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:44:20,375 INFO L93 Difference]: Finished difference Result 126 states and 145 transitions. [2021-08-30 17:44:20,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-30 17:44:20,375 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 12 states have internal predecessors, (20), 3 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 19 [2021-08-30 17:44:20,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:44:20,376 INFO L225 Difference]: With dead ends: 126 [2021-08-30 17:44:20,376 INFO L226 Difference]: Without dead ends: 126 [2021-08-30 17:44:20,377 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 12994.66ms TimeCoverageRelationStatistics Valid=59, Invalid=277, Unknown=6, NotChecked=0, Total=342 [2021-08-30 17:44:20,377 INFO L928 BasicCegarLoop]: 13 mSDtfsCounter, 52 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 500.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 1111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.99ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 567 IncrementalHoareTripleChecker+Unchecked, 574.51ms IncrementalHoareTripleChecker+Time [2021-08-30 17:44:20,377 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 83 Invalid, 1111 Unknown, 0 Unchecked, 3.99ms Time], IncrementalHoareTripleChecker [13 Valid, 531 Invalid, 0 Unknown, 567 Unchecked, 574.51ms Time] [2021-08-30 17:44:20,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-08-30 17:44:20,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 119. [2021-08-30 17:44:20,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 64 states have (on average 1.75) internal successors, (112), 99 states have internal predecessors, (112), 10 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (14), 12 states have call predecessors, (14), 9 states have call successors, (14) [2021-08-30 17:44:20,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 136 transitions. [2021-08-30 17:44:20,383 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 136 transitions. Word has length 19 [2021-08-30 17:44:20,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:44:20,384 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 136 transitions. [2021-08-30 17:44:20,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 12 states have internal predecessors, (20), 3 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-08-30 17:44:20,384 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 136 transitions. [2021-08-30 17:44:20,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-08-30 17:44:20,384 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:44:20,385 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:44:20,395 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-08-30 17:44:20,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:44:20,591 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting entry_pointErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-08-30 17:44:20,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:44:20,592 INFO L82 PathProgramCache]: Analyzing trace with hash 503628021, now seen corresponding path program 1 times [2021-08-30 17:44:20,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:44:20,592 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1338874659] [2021-08-30 17:44:20,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:44:20,592 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:44:20,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:44:20,595 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:44:20,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-08-30 17:44:20,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:44:20,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-30 17:44:20,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:44:20,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-30 17:44:20,788 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:44:20,789 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:44:21,141 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:44:21,141 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:44:21,141 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1338874659] [2021-08-30 17:44:21,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1338874659] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-30 17:44:21,141 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-30 17:44:21,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-08-30 17:44:21,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224158802] [2021-08-30 17:44:21,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-30 17:44:21,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:44:21,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-30 17:44:21,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-08-30 17:44:21,142 INFO L87 Difference]: Start difference. First operand 119 states and 136 transitions. Second operand has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 10 states have internal predecessors, (20), 3 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-08-30 17:44:23,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:44:23,635 INFO L93 Difference]: Finished difference Result 228 states and 258 transitions. [2021-08-30 17:44:23,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-30 17:44:23,636 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 10 states have internal predecessors, (20), 3 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 19 [2021-08-30 17:44:23,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:44:23,637 INFO L225 Difference]: With dead ends: 228 [2021-08-30 17:44:23,637 INFO L226 Difference]: Without dead ends: 228 [2021-08-30 17:44:23,637 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 222.43ms TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2021-08-30 17:44:23,638 INFO L928 BasicCegarLoop]: 22 mSDtfsCounter, 159 mSDsluCounter, 703 mSDsCounter, 0 mSdLazyCounter, 1684 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2156.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 1839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.99ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 125 IncrementalHoareTripleChecker+Unchecked, 2412.97ms IncrementalHoareTripleChecker+Time [2021-08-30 17:44:23,638 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 80 Invalid, 1839 Unknown, 0 Unchecked, 8.99ms Time], IncrementalHoareTripleChecker [30 Valid, 1684 Invalid, 0 Unknown, 125 Unchecked, 2412.97ms Time] [2021-08-30 17:44:23,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2021-08-30 17:44:23,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 148. [2021-08-30 17:44:23,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 88 states have (on average 1.7386363636363635) internal successors, (153), 122 states have internal predecessors, (153), 14 states have call successors, (14), 7 states have call predecessors, (14), 8 states have return successors, (21), 18 states have call predecessors, (21), 13 states have call successors, (21) [2021-08-30 17:44:23,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 188 transitions. [2021-08-30 17:44:23,656 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 188 transitions. Word has length 19 [2021-08-30 17:44:23,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:44:23,656 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 188 transitions. [2021-08-30 17:44:23,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 10 states have internal predecessors, (20), 3 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-08-30 17:44:23,656 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 188 transitions. [2021-08-30 17:44:23,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-08-30 17:44:23,657 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:44:23,657 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:44:23,665 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-08-30 17:44:23,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:44:23,858 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-08-30 17:44:23,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:44:23,859 INFO L82 PathProgramCache]: Analyzing trace with hash -1293353130, now seen corresponding path program 1 times [2021-08-30 17:44:23,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:44:23,859 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1100731593] [2021-08-30 17:44:23,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:44:23,859 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:44:23,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:44:23,860 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:44:23,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-08-30 17:44:23,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:44:23,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-30 17:44:23,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:44:24,014 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:44:24,014 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:44:24,066 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-30 17:44:24,067 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:44:24,067 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1100731593] [2021-08-30 17:44:24,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1100731593] provided 1 perfect and 1 imperfect interpolant sequences [2021-08-30 17:44:24,067 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-30 17:44:24,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-08-30 17:44:24,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660656070] [2021-08-30 17:44:24,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-30 17:44:24,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:44:24,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-30 17:44:24,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 17:44:24,068 INFO L87 Difference]: Start difference. First operand 148 states and 188 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-30 17:44:24,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:44:24,304 INFO L93 Difference]: Finished difference Result 140 states and 175 transitions. [2021-08-30 17:44:24,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-30 17:44:24,305 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 19 [2021-08-30 17:44:24,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:44:24,305 INFO L225 Difference]: With dead ends: 140 [2021-08-30 17:44:24,305 INFO L226 Difference]: Without dead ends: 138 [2021-08-30 17:44:24,306 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.62ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 17:44:24,306 INFO L928 BasicCegarLoop]: 21 mSDtfsCounter, 0 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 196.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.21ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 229.76ms IncrementalHoareTripleChecker+Time [2021-08-30 17:44:24,306 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 83 Invalid, 337 Unknown, 0 Unchecked, 2.21ms Time], IncrementalHoareTripleChecker [0 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 229.76ms Time] [2021-08-30 17:44:24,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2021-08-30 17:44:24,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2021-08-30 17:44:24,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 81 states have (on average 1.7530864197530864) internal successors, (142), 114 states have internal predecessors, (142), 13 states have call successors, (13), 7 states have call predecessors, (13), 8 states have return successors, (18), 16 states have call predecessors, (18), 12 states have call successors, (18) [2021-08-30 17:44:24,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 173 transitions. [2021-08-30 17:44:24,314 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 173 transitions. Word has length 19 [2021-08-30 17:44:24,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:44:24,314 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 173 transitions. [2021-08-30 17:44:24,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-30 17:44:24,315 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 173 transitions. [2021-08-30 17:44:24,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-30 17:44:24,315 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:44:24,315 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:44:24,323 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-08-30 17:44:24,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:44:24,523 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting entry_pointErr25ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-08-30 17:44:24,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:44:24,524 INFO L82 PathProgramCache]: Analyzing trace with hash -943570788, now seen corresponding path program 1 times [2021-08-30 17:44:24,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:44:24,524 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [463923458] [2021-08-30 17:44:24,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:44:24,524 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:44:24,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:44:24,525 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:44:24,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-08-30 17:44:24,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:44:24,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-30 17:44:24,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:44:24,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-08-30 17:44:24,666 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2021-08-30 17:44:24,675 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-30 17:44:24,676 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:44:24,723 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-30 17:44:24,724 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:44:24,724 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [463923458] [2021-08-30 17:44:24,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [463923458] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:44:24,724 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:44:24,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-08-30 17:44:24,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76489827] [2021-08-30 17:44:24,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-30 17:44:24,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:44:24,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-30 17:44:24,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-30 17:44:24,725 INFO L87 Difference]: Start difference. First operand 138 states and 173 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 17:44:25,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:44:25,005 INFO L93 Difference]: Finished difference Result 141 states and 175 transitions. [2021-08-30 17:44:25,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-30 17:44:25,005 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2021-08-30 17:44:25,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:44:25,006 INFO L225 Difference]: With dead ends: 141 [2021-08-30 17:44:25,006 INFO L226 Difference]: Without dead ends: 141 [2021-08-30 17:44:25,006 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 24.82ms TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-08-30 17:44:25,007 INFO L928 BasicCegarLoop]: 18 mSDtfsCounter, 5 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 223.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.41ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 260.98ms IncrementalHoareTripleChecker+Time [2021-08-30 17:44:25,007 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 88 Invalid, 416 Unknown, 0 Unchecked, 1.41ms Time], IncrementalHoareTripleChecker [1 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 260.98ms Time] [2021-08-30 17:44:25,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-08-30 17:44:25,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 138. [2021-08-30 17:44:25,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 81 states have (on average 1.7407407407407407) internal successors, (141), 114 states have internal predecessors, (141), 13 states have call successors, (13), 7 states have call predecessors, (13), 8 states have return successors, (18), 16 states have call predecessors, (18), 12 states have call successors, (18) [2021-08-30 17:44:25,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 172 transitions. [2021-08-30 17:44:25,012 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 172 transitions. Word has length 24 [2021-08-30 17:44:25,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:44:25,013 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 172 transitions. [2021-08-30 17:44:25,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 17:44:25,013 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 172 transitions. [2021-08-30 17:44:25,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-30 17:44:25,013 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:44:25,014 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:44:25,024 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-08-30 17:44:25,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:44:25,220 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting entry_pointErr25ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-08-30 17:44:25,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:44:25,221 INFO L82 PathProgramCache]: Analyzing trace with hash 1543942045, now seen corresponding path program 1 times [2021-08-30 17:44:25,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:44:25,221 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [583790303] [2021-08-30 17:44:25,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:44:25,221 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:44:25,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:44:25,222 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:44:25,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-08-30 17:44:25,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:44:25,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-30 17:44:25,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:44:25,487 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:44:25,487 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:44:25,587 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-30 17:44:25,587 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:44:25,587 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [583790303] [2021-08-30 17:44:25,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [583790303] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-30 17:44:25,587 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-30 17:44:25,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 9 [2021-08-30 17:44:25,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21195818] [2021-08-30 17:44:25,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-30 17:44:25,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:44:25,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-30 17:44:25,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-08-30 17:44:25,588 INFO L87 Difference]: Start difference. First operand 138 states and 172 transitions. Second operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-08-30 17:44:25,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:44:25,973 INFO L93 Difference]: Finished difference Result 139 states and 171 transitions. [2021-08-30 17:44:25,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-30 17:44:25,973 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 24 [2021-08-30 17:44:25,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:44:25,974 INFO L225 Difference]: With dead ends: 139 [2021-08-30 17:44:25,974 INFO L226 Difference]: Without dead ends: 139 [2021-08-30 17:44:25,974 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 92.47ms TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-08-30 17:44:25,976 INFO L928 BasicCegarLoop]: 13 mSDtfsCounter, 165 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 301.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.68ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 54 IncrementalHoareTripleChecker+Unchecked, 362.16ms IncrementalHoareTripleChecker+Time [2021-08-30 17:44:25,976 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 15 Invalid, 492 Unknown, 0 Unchecked, 1.68ms Time], IncrementalHoareTripleChecker [13 Valid, 425 Invalid, 0 Unknown, 54 Unchecked, 362.16ms Time] [2021-08-30 17:44:25,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-08-30 17:44:25,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2021-08-30 17:44:25,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 82 states have (on average 1.7073170731707317) internal successors, (140), 115 states have internal predecessors, (140), 13 states have call successors, (13), 7 states have call predecessors, (13), 9 states have return successors, (18), 16 states have call predecessors, (18), 12 states have call successors, (18) [2021-08-30 17:44:25,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 171 transitions. [2021-08-30 17:44:25,981 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 171 transitions. Word has length 24 [2021-08-30 17:44:25,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:44:25,981 INFO L470 AbstractCegarLoop]: Abstraction has 139 states and 171 transitions. [2021-08-30 17:44:25,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-08-30 17:44:25,981 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 171 transitions. [2021-08-30 17:44:25,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-08-30 17:44:25,982 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:44:25,982 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:44:25,991 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-08-30 17:44:26,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:44:26,194 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting entry_pointErr6REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-08-30 17:44:26,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:44:26,194 INFO L82 PathProgramCache]: Analyzing trace with hash 304570972, now seen corresponding path program 1 times [2021-08-30 17:44:26,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:44:26,195 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [618295675] [2021-08-30 17:44:26,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:44:26,195 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:44:26,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:44:26,196 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:44:26,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-08-30 17:44:26,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:44:26,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-30 17:44:26,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:44:26,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-30 17:44:26,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-08-30 17:44:26,347 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2021-08-30 17:44:26,396 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-08-30 17:44:26,396 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 22 [2021-08-30 17:44:26,410 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-30 17:44:26,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:44:26,560 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-30 17:44:26,560 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:44:26,560 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [618295675] [2021-08-30 17:44:26,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [618295675] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-30 17:44:26,560 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-30 17:44:26,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 8 [2021-08-30 17:44:26,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763824259] [2021-08-30 17:44:26,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-30 17:44:26,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:44:26,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-30 17:44:26,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-08-30 17:44:26,562 INFO L87 Difference]: Start difference. First operand 139 states and 171 transitions. Second operand has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-30 17:44:26,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:44:26,935 INFO L93 Difference]: Finished difference Result 148 states and 177 transitions. [2021-08-30 17:44:26,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-30 17:44:26,936 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 29 [2021-08-30 17:44:26,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:44:26,937 INFO L225 Difference]: With dead ends: 148 [2021-08-30 17:44:26,937 INFO L226 Difference]: Without dead ends: 148 [2021-08-30 17:44:26,937 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 44 SyntacticMatches, 6 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 119.53ms TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-08-30 17:44:26,938 INFO L928 BasicCegarLoop]: 18 mSDtfsCounter, 8 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 270.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.25ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 219 IncrementalHoareTripleChecker+Unchecked, 332.61ms IncrementalHoareTripleChecker+Time [2021-08-30 17:44:26,938 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 75 Invalid, 679 Unknown, 0 Unchecked, 2.25ms Time], IncrementalHoareTripleChecker [3 Valid, 457 Invalid, 0 Unknown, 219 Unchecked, 332.61ms Time] [2021-08-30 17:44:26,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-08-30 17:44:26,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 146. [2021-08-30 17:44:26,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 87 states have (on average 1.6781609195402298) internal successors, (146), 120 states have internal predecessors, (146), 13 states have call successors, (13), 8 states have call predecessors, (13), 11 states have return successors, (18), 17 states have call predecessors, (18), 12 states have call successors, (18) [2021-08-30 17:44:26,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 177 transitions. [2021-08-30 17:44:26,942 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 177 transitions. Word has length 29 [2021-08-30 17:44:26,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:44:26,942 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 177 transitions. [2021-08-30 17:44:26,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-30 17:44:26,943 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 177 transitions. [2021-08-30 17:44:26,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-08-30 17:44:26,943 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:44:26,943 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:44:26,953 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-08-30 17:44:27,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:44:27,150 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting entry_pointErr7REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-08-30 17:44:27,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:44:27,150 INFO L82 PathProgramCache]: Analyzing trace with hash 304570973, now seen corresponding path program 1 times [2021-08-30 17:44:27,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:44:27,151 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1462180765] [2021-08-30 17:44:27,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:44:27,151 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:44:27,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:44:27,151 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:44:27,154 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-08-30 17:44:27,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:44:27,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 18 conjunts are in the unsatisfiable core [2021-08-30 17:44:27,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:44:27,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-30 17:44:27,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-30 17:44:27,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-08-30 17:44:27,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2021-08-30 17:44:27,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 33 [2021-08-30 17:44:27,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2021-08-30 17:44:29,495 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-30 17:44:29,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 35 [2021-08-30 17:44:29,501 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-08-30 17:44:29,501 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2021-08-30 17:44:29,520 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-30 17:44:29,520 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:44:39,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2021-08-30 17:44:39,998 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-30 17:44:39,998 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:44:39,998 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1462180765] [2021-08-30 17:44:39,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1462180765] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-30 17:44:39,998 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-30 17:44:39,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2021-08-30 17:44:39,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750424633] [2021-08-30 17:44:39,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-30 17:44:39,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:44:39,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-30 17:44:39,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=259, Unknown=4, NotChecked=0, Total=306 [2021-08-30 17:44:40,000 INFO L87 Difference]: Start difference. First operand 146 states and 177 transitions. Second operand has 18 states, 15 states have (on average 2.066666666666667) internal successors, (31), 14 states have internal predecessors, (31), 3 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2021-08-30 17:44:44,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:44:44,769 INFO L93 Difference]: Finished difference Result 149 states and 176 transitions. [2021-08-30 17:44:44,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-30 17:44:44,770 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 2.066666666666667) internal successors, (31), 14 states have internal predecessors, (31), 3 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 29 [2021-08-30 17:44:44,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:44:44,771 INFO L225 Difference]: With dead ends: 149 [2021-08-30 17:44:44,771 INFO L226 Difference]: Without dead ends: 149 [2021-08-30 17:44:44,771 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 15127.10ms TimeCoverageRelationStatistics Valid=78, Invalid=423, Unknown=5, NotChecked=0, Total=506 [2021-08-30 17:44:44,772 INFO L928 BasicCegarLoop]: 14 mSDtfsCounter, 38 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 378.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 1015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.46ms SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 557 IncrementalHoareTripleChecker+Unchecked, 434.11ms IncrementalHoareTripleChecker+Time [2021-08-30 17:44:44,772 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 89 Invalid, 1015 Unknown, 0 Unchecked, 2.46ms Time], IncrementalHoareTripleChecker [19 Valid, 439 Invalid, 0 Unknown, 557 Unchecked, 434.11ms Time] [2021-08-30 17:44:44,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2021-08-30 17:44:44,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 146. [2021-08-30 17:44:44,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 87 states have (on average 1.6551724137931034) internal successors, (144), 120 states have internal predecessors, (144), 13 states have call successors, (13), 8 states have call predecessors, (13), 11 states have return successors, (18), 17 states have call predecessors, (18), 12 states have call successors, (18) [2021-08-30 17:44:44,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 175 transitions. [2021-08-30 17:44:44,780 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 175 transitions. Word has length 29 [2021-08-30 17:44:44,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:44:44,780 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 175 transitions. [2021-08-30 17:44:44,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 2.066666666666667) internal successors, (31), 14 states have internal predecessors, (31), 3 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2021-08-30 17:44:44,780 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 175 transitions. [2021-08-30 17:44:44,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-08-30 17:44:44,781 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:44:44,781 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:44:44,788 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-08-30 17:44:44,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:44:44,988 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-08-30 17:44:44,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:44:44,988 INFO L82 PathProgramCache]: Analyzing trace with hash -1801581997, now seen corresponding path program 1 times [2021-08-30 17:44:44,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:44:44,989 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [436866818] [2021-08-30 17:44:44,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:44:44,989 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:44:44,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:44:44,989 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:44:44,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-08-30 17:44:45,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:44:45,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 15 conjunts are in the unsatisfiable core [2021-08-30 17:44:45,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:44:45,097 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-08-30 17:44:45,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-08-30 17:44:49,344 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-30 17:44:49,344 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:44:53,447 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:44:53,447 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [436866818] [2021-08-30 17:44:53,447 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-30 17:44:53,447 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [651233631] [2021-08-30 17:44:53,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:44:53,448 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-08-30 17:44:53,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2021-08-30 17:44:53,449 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-08-30 17:44:53,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-08-30 17:44:53,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:44:53,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 16 conjunts are in the unsatisfiable core [2021-08-30 17:44:53,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:44:53,618 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-08-30 17:44:53,618 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 25 treesize of output 28 [2021-08-30 17:44:55,814 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-30 17:44:55,815 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:44:59,924 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-30 17:44:59,924 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640466425] [2021-08-30 17:44:59,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:44:59,924 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 17:44:59,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 17:44:59,925 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-30 17:44:59,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-08-30 17:45:00,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:45:00,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 13 conjunts are in the unsatisfiable core [2021-08-30 17:45:00,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:45:00,126 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-30 17:45:00,126 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:45:04,222 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-30 17:45:04,222 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:45:04,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-08-30 17:45:04,222 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-08-30 17:45:04,223 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-08-30 17:45:04,225 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK (112 of 113 remaining) [2021-08-30 17:45:04,227 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION (111 of 113 remaining) [2021-08-30 17:45:04,227 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION (110 of 113 remaining) [2021-08-30 17:45:04,227 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION (109 of 113 remaining) [2021-08-30 17:45:04,227 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION (108 of 113 remaining) [2021-08-30 17:45:04,227 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION (107 of 113 remaining) [2021-08-30 17:45:04,227 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION (106 of 113 remaining) [2021-08-30 17:45:04,227 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION (105 of 113 remaining) [2021-08-30 17:45:04,227 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION (104 of 113 remaining) [2021-08-30 17:45:04,228 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION (103 of 113 remaining) [2021-08-30 17:45:04,228 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION (102 of 113 remaining) [2021-08-30 17:45:04,228 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION (101 of 113 remaining) [2021-08-30 17:45:04,228 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION (100 of 113 remaining) [2021-08-30 17:45:04,228 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION (99 of 113 remaining) [2021-08-30 17:45:04,228 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION (98 of 113 remaining) [2021-08-30 17:45:04,228 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION (97 of 113 remaining) [2021-08-30 17:45:04,228 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION (96 of 113 remaining) [2021-08-30 17:45:04,229 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION (95 of 113 remaining) [2021-08-30 17:45:04,229 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION (94 of 113 remaining) [2021-08-30 17:45:04,229 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION (93 of 113 remaining) [2021-08-30 17:45:04,229 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION (92 of 113 remaining) [2021-08-30 17:45:04,229 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION (91 of 113 remaining) [2021-08-30 17:45:04,229 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION (90 of 113 remaining) [2021-08-30 17:45:04,229 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION (89 of 113 remaining) [2021-08-30 17:45:04,229 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION (88 of 113 remaining) [2021-08-30 17:45:04,230 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION (87 of 113 remaining) [2021-08-30 17:45:04,230 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION (86 of 113 remaining) [2021-08-30 17:45:04,230 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION (85 of 113 remaining) [2021-08-30 17:45:04,230 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION (84 of 113 remaining) [2021-08-30 17:45:04,230 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION (83 of 113 remaining) [2021-08-30 17:45:04,230 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION (82 of 113 remaining) [2021-08-30 17:45:04,230 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION (81 of 113 remaining) [2021-08-30 17:45:04,230 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION (80 of 113 remaining) [2021-08-30 17:45:04,231 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_10Err0REQUIRES_VIOLATION (79 of 113 remaining) [2021-08-30 17:45:04,231 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_10Err1REQUIRES_VIOLATION (78 of 113 remaining) [2021-08-30 17:45:04,231 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_10Err2REQUIRES_VIOLATION (77 of 113 remaining) [2021-08-30 17:45:04,231 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_10Err3REQUIRES_VIOLATION (76 of 113 remaining) [2021-08-30 17:45:04,231 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_10Err4REQUIRES_VIOLATION (75 of 113 remaining) [2021-08-30 17:45:04,231 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_10Err5REQUIRES_VIOLATION (74 of 113 remaining) [2021-08-30 17:45:04,231 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION (73 of 113 remaining) [2021-08-30 17:45:04,231 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION (72 of 113 remaining) [2021-08-30 17:45:04,232 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION (71 of 113 remaining) [2021-08-30 17:45:04,232 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION (70 of 113 remaining) [2021-08-30 17:45:04,232 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION (69 of 113 remaining) [2021-08-30 17:45:04,232 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION (68 of 113 remaining) [2021-08-30 17:45:04,232 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION (67 of 113 remaining) [2021-08-30 17:45:04,232 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION (66 of 113 remaining) [2021-08-30 17:45:04,232 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION (65 of 113 remaining) [2021-08-30 17:45:04,232 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION (64 of 113 remaining) [2021-08-30 17:45:04,233 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE (63 of 113 remaining) [2021-08-30 17:45:04,233 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE (62 of 113 remaining) [2021-08-30 17:45:04,233 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE (61 of 113 remaining) [2021-08-30 17:45:04,233 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE (60 of 113 remaining) [2021-08-30 17:45:04,233 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE (59 of 113 remaining) [2021-08-30 17:45:04,233 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE (58 of 113 remaining) [2021-08-30 17:45:04,233 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION (57 of 113 remaining) [2021-08-30 17:45:04,234 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION (56 of 113 remaining) [2021-08-30 17:45:04,234 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION (55 of 113 remaining) [2021-08-30 17:45:04,234 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION (54 of 113 remaining) [2021-08-30 17:45:04,234 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION (53 of 113 remaining) [2021-08-30 17:45:04,234 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION (52 of 113 remaining) [2021-08-30 17:45:04,234 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION (51 of 113 remaining) [2021-08-30 17:45:04,234 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION (50 of 113 remaining) [2021-08-30 17:45:04,234 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE (49 of 113 remaining) [2021-08-30 17:45:04,234 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE (48 of 113 remaining) [2021-08-30 17:45:04,234 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE (47 of 113 remaining) [2021-08-30 17:45:04,235 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE (46 of 113 remaining) [2021-08-30 17:45:04,235 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE (45 of 113 remaining) [2021-08-30 17:45:04,235 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE (44 of 113 remaining) [2021-08-30 17:45:04,235 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION (43 of 113 remaining) [2021-08-30 17:45:04,235 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION (42 of 113 remaining) [2021-08-30 17:45:04,235 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION (41 of 113 remaining) [2021-08-30 17:45:04,235 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION (40 of 113 remaining) [2021-08-30 17:45:04,235 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION (39 of 113 remaining) [2021-08-30 17:45:04,235 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION (38 of 113 remaining) [2021-08-30 17:45:04,235 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_10Err0REQUIRES_VIOLATION (37 of 113 remaining) [2021-08-30 17:45:04,235 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_10Err1REQUIRES_VIOLATION (36 of 113 remaining) [2021-08-30 17:45:04,235 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_10Err2REQUIRES_VIOLATION (35 of 113 remaining) [2021-08-30 17:45:04,235 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_10Err3REQUIRES_VIOLATION (34 of 113 remaining) [2021-08-30 17:45:04,236 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_10Err4REQUIRES_VIOLATION (33 of 113 remaining) [2021-08-30 17:45:04,236 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_10Err5REQUIRES_VIOLATION (32 of 113 remaining) [2021-08-30 17:45:04,236 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_10Err6ASSERT_VIOLATIONMEMORY_FREE (31 of 113 remaining) [2021-08-30 17:45:04,236 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_10Err7ASSERT_VIOLATIONMEMORY_FREE (30 of 113 remaining) [2021-08-30 17:45:04,236 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_10Err8ASSERT_VIOLATIONMEMORY_FREE (29 of 113 remaining) [2021-08-30 17:45:04,236 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION (28 of 113 remaining) [2021-08-30 17:45:04,236 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION (27 of 113 remaining) [2021-08-30 17:45:04,236 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr0REQUIRES_VIOLATION (26 of 113 remaining) [2021-08-30 17:45:04,236 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr1REQUIRES_VIOLATION (25 of 113 remaining) [2021-08-30 17:45:04,236 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr2REQUIRES_VIOLATION (24 of 113 remaining) [2021-08-30 17:45:04,236 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr3REQUIRES_VIOLATION (23 of 113 remaining) [2021-08-30 17:45:04,236 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr4REQUIRES_VIOLATION (22 of 113 remaining) [2021-08-30 17:45:04,236 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr5REQUIRES_VIOLATION (21 of 113 remaining) [2021-08-30 17:45:04,236 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr6REQUIRES_VIOLATION (20 of 113 remaining) [2021-08-30 17:45:04,237 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr7REQUIRES_VIOLATION (19 of 113 remaining) [2021-08-30 17:45:04,237 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr8REQUIRES_VIOLATION (18 of 113 remaining) [2021-08-30 17:45:04,237 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr9REQUIRES_VIOLATION (17 of 113 remaining) [2021-08-30 17:45:04,237 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr10REQUIRES_VIOLATION (16 of 113 remaining) [2021-08-30 17:45:04,237 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr11REQUIRES_VIOLATION (15 of 113 remaining) [2021-08-30 17:45:04,237 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr12REQUIRES_VIOLATION (14 of 113 remaining) [2021-08-30 17:45:04,237 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr13REQUIRES_VIOLATION (13 of 113 remaining) [2021-08-30 17:45:04,237 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr14REQUIRES_VIOLATION (12 of 113 remaining) [2021-08-30 17:45:04,237 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr15REQUIRES_VIOLATION (11 of 113 remaining) [2021-08-30 17:45:04,237 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr16ASSERT_VIOLATIONMEMORY_FREE (10 of 113 remaining) [2021-08-30 17:45:04,238 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr17ASSERT_VIOLATIONMEMORY_FREE (9 of 113 remaining) [2021-08-30 17:45:04,238 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr18ASSERT_VIOLATIONMEMORY_FREE (8 of 113 remaining) [2021-08-30 17:45:04,238 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr19REQUIRES_VIOLATION (7 of 113 remaining) [2021-08-30 17:45:04,238 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr20REQUIRES_VIOLATION (6 of 113 remaining) [2021-08-30 17:45:04,238 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr21ASSERT_VIOLATIONMEMORY_FREE (5 of 113 remaining) [2021-08-30 17:45:04,238 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr22ASSERT_VIOLATIONMEMORY_FREE (4 of 113 remaining) [2021-08-30 17:45:04,238 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr23ASSERT_VIOLATIONMEMORY_FREE (3 of 113 remaining) [2021-08-30 17:45:04,238 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr24ASSERT_VIOLATIONMEMORY_FREE (2 of 113 remaining) [2021-08-30 17:45:04,238 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr25ASSERT_VIOLATIONMEMORY_FREE (1 of 113 remaining) [2021-08-30 17:45:04,238 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr26ASSERT_VIOLATIONMEMORY_FREE (0 of 113 remaining) [2021-08-30 17:45:04,256 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2021-08-30 17:45:04,442 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-08-30 17:45:04,647 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-08-30 17:45:04,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:45:04,843 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-30 17:45:04,845 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-08-30 17:45:04,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 05:45:04 BoogieIcfgContainer [2021-08-30 17:45:04,851 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-30 17:45:04,851 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-30 17:45:04,851 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-30 17:45:04,852 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-30 17:45:04,852 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:44:01" (3/4) ... [2021-08-30 17:45:04,854 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-30 17:45:04,854 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-30 17:45:04,854 INFO L158 Benchmark]: Toolchain (without parser) took 64299.84ms. Allocated memory was 56.6MB in the beginning and 94.4MB in the end (delta: 37.7MB). Free memory was 33.9MB in the beginning and 27.2MB in the end (delta: 6.7MB). Peak memory consumption was 45.5MB. Max. memory is 16.1GB. [2021-08-30 17:45:04,854 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 56.6MB. Free memory was 38.6MB in the beginning and 38.5MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 17:45:04,855 INFO L158 Benchmark]: CACSL2BoogieTranslator took 473.85ms. Allocated memory was 56.6MB in the beginning and 77.6MB in the end (delta: 21.0MB). Free memory was 33.7MB in the beginning and 58.3MB in the end (delta: -24.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-08-30 17:45:04,855 INFO L158 Benchmark]: Boogie Preprocessor took 95.11ms. Allocated memory is still 77.6MB. Free memory was 58.1MB in the beginning and 53.2MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-30 17:45:04,855 INFO L158 Benchmark]: RCFGBuilder took 579.26ms. Allocated memory is still 77.6MB. Free memory was 53.2MB in the beginning and 50.3MB in the end (delta: 2.8MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. [2021-08-30 17:45:04,855 INFO L158 Benchmark]: TraceAbstraction took 63145.29ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 49.6MB in the beginning and 27.2MB in the end (delta: 22.3MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. [2021-08-30 17:45:04,855 INFO L158 Benchmark]: Witness Printer took 2.51ms. Allocated memory is still 94.4MB. Free memory is still 27.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 17:45:04,856 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 56.6MB. Free memory was 38.6MB in the beginning and 38.5MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 473.85ms. Allocated memory was 56.6MB in the beginning and 77.6MB in the end (delta: 21.0MB). Free memory was 33.7MB in the beginning and 58.3MB in the end (delta: -24.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 95.11ms. Allocated memory is still 77.6MB. Free memory was 58.1MB in the beginning and 53.2MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 579.26ms. Allocated memory is still 77.6MB. Free memory was 53.2MB in the beginning and 50.3MB in the end (delta: 2.8MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. * TraceAbstraction took 63145.29ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 49.6MB in the beginning and 27.2MB in the end (delta: 22.3MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. * Witness Printer took 2.51ms. Allocated memory is still 94.4MB. Free memory is still 27.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 787]: 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 787. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L788] CALL entry_point() [L773] CALL, EXPR ldv_malloc(sizeof(struct A10)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L773] RET, EXPR ldv_malloc(sizeof(struct A10)) [L773] struct A10 *a10 = (struct A10 *)ldv_malloc(sizeof(struct A10)); [L774] COND FALSE !(!a10) [L775] CALL, EXPR ldv_malloc(sizeof(struct B10)) [L526] COND FALSE !(__VERIFIER_nondet_int()) [L529] return 0; [L775] RET, EXPR ldv_malloc(sizeof(struct B10)) [L775] a10->b = (struct B10 *)ldv_malloc(sizeof(struct B10)) [L776] EXPR a10->b [L776] COND TRUE !a10->b [L785] free(a10) [L785] free(a10) [L785] free(a10) [L788] 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: 767]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 767]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 767]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 767]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 767]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 767]: 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: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that free always succeeds Unable to prove that free 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: 775]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 775]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 776]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 776]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 778]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 778]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 778]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 778]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 783]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 783]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 783]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 783]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 783]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 785]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 785]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 785]: 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, 415 locations, 113 error locations. Started 1 CEGAR loops. OverallTime: 63103.01ms, OverallIterations: 11, TraceHistogramMax: 3, EmptinessCheckTime: 20.82ms, AutomataDifference: 14372.68ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 7.66ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 698 SdHoareTripleChecker+Valid, 5586.16ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 680 mSDsluCounter, 695 SdHoareTripleChecker+Invalid, 4810.51ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 1751 IncrementalHoareTripleChecker+Unchecked, 3359 mSDsCounter, 118 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5475 IncrementalHoareTripleChecker+Invalid, 7344 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 118 mSolverCounterUnsat, 190 mSDtfsCounter, 5475 mSolverCounterSat, 36.49ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 439 GetRequests, 336 SyntacticMatches, 12 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 28686.67ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=175occurred in iteration=0, InterpolantAutomatonStates: 79, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 81.97ms AutomataMinimizationTime, 10 MinimizatonAttempts, 249 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 72.33ms SsaConstructionTime, 172.45ms SatisfiabilityAnalysisTime, 25567.93ms InterpolantComputationTime, 214 NumberOfCodeBlocks, 214 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 408 ConstructedInterpolants, 45 QuantifiedInterpolants, 2636 SizeOfPredicates, 29 NumberOfNonLiveVariables, 976 ConjunctsInSsa, 88 ConjunctsInUnsatCore, 20 InterpolantComputations, 7 PerfectInterpolantSequences, 64/96 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-08-30 17:45:04,916 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...