./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test13_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 574ddb4e 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_test13_1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c20063fdafbef5c00ec1f1fcfed63f5b6ab29c7a5ae9bd5cc27a6dcf474b9797 --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-17 08:31:18,282 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-17 08:31:18,284 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-17 08:31:18,314 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-17 08:31:18,314 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-17 08:31:18,317 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-17 08:31:18,318 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-17 08:31:18,320 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-17 08:31:18,322 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-17 08:31:18,326 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-17 08:31:18,327 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-17 08:31:18,329 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-17 08:31:18,329 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-17 08:31:18,331 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-17 08:31:18,332 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-17 08:31:18,333 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-17 08:31:18,333 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-17 08:31:18,334 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-17 08:31:18,335 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-17 08:31:18,339 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-17 08:31:18,340 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-17 08:31:18,340 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-17 08:31:18,341 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-17 08:31:18,342 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-17 08:31:18,345 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-17 08:31:18,345 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-17 08:31:18,345 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-17 08:31:18,346 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-17 08:31:18,346 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-17 08:31:18,347 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-17 08:31:18,347 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-17 08:31:18,348 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-17 08:31:18,349 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-17 08:31:18,349 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-17 08:31:18,350 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-17 08:31:18,350 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-17 08:31:18,350 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-17 08:31:18,351 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-17 08:31:18,351 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-17 08:31:18,352 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-17 08:31:18,352 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-17 08:31:18,353 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-02-17 08:31:18,374 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-17 08:31:18,374 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-17 08:31:18,375 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-17 08:31:18,375 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-17 08:31:18,376 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-17 08:31:18,376 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-17 08:31:18,376 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-17 08:31:18,376 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-17 08:31:18,377 INFO L138 SettingsManager]: * Use SBE=true [2023-02-17 08:31:18,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-17 08:31:18,377 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-17 08:31:18,377 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-17 08:31:18,378 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-17 08:31:18,378 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-17 08:31:18,378 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-17 08:31:18,378 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-02-17 08:31:18,378 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-02-17 08:31:18,378 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-02-17 08:31:18,378 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-17 08:31:18,379 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-17 08:31:18,379 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-17 08:31:18,379 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-17 08:31:18,379 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-17 08:31:18,379 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-17 08:31:18,379 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-17 08:31:18,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 08:31:18,380 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-17 08:31:18,380 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-17 08:31:18,380 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-17 08:31:18,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-17 08:31:18,380 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-17 08:31:18,381 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-17 08:31:18,381 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-17 08:31:18,381 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-17 08:31:18,381 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c20063fdafbef5c00ec1f1fcfed63f5b6ab29c7a5ae9bd5cc27a6dcf474b9797 [2023-02-17 08:31:18,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-17 08:31:18,591 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-17 08:31:18,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-17 08:31:18,610 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-17 08:31:18,611 INFO L275 PluginConnector]: CDTParser initialized [2023-02-17 08:31:18,613 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test13_1.i [2023-02-17 08:31:19,553 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-17 08:31:19,743 INFO L351 CDTParser]: Found 1 translation units. [2023-02-17 08:31:19,743 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test13_1.i [2023-02-17 08:31:19,755 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/505c27eba/7055f717413e47a28f47ae7062b622dd/FLAG6c3b41f01 [2023-02-17 08:31:19,769 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/505c27eba/7055f717413e47a28f47ae7062b622dd [2023-02-17 08:31:19,771 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-17 08:31:19,772 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-17 08:31:19,773 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-17 08:31:19,773 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-17 08:31:19,775 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-17 08:31:19,776 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 08:31:19" (1/1) ... [2023-02-17 08:31:19,776 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f925298 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:31:19, skipping insertion in model container [2023-02-17 08:31:19,777 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 08:31:19" (1/1) ... [2023-02-17 08:31:19,781 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-17 08:31:19,825 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-17 08:31:20,122 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 08:31:20,132 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-02-17 08:31:20,132 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@e9c2611 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:31:20, skipping insertion in model container [2023-02-17 08:31:20,132 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-17 08:31:20,133 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-02-17 08:31:20,134 INFO L158 Benchmark]: Toolchain (without parser) took 361.06ms. Allocated memory was 134.2MB in the beginning and 167.8MB in the end (delta: 33.6MB). Free memory was 61.4MB in the beginning and 136.3MB in the end (delta: -74.8MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. [2023-02-17 08:31:20,134 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 134.2MB. Free memory is still 108.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 08:31:20,135 INFO L158 Benchmark]: CACSL2BoogieTranslator took 359.61ms. Allocated memory was 134.2MB in the beginning and 167.8MB in the end (delta: 33.6MB). Free memory was 61.2MB in the beginning and 137.2MB in the end (delta: -75.9MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. [2023-02-17 08:31:20,136 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 134.2MB. Free memory is still 108.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 359.61ms. Allocated memory was 134.2MB in the beginning and 167.8MB in the end (delta: 33.6MB). Free memory was 61.2MB in the beginning and 137.2MB in the end (delta: -75.9MB). Peak memory consumption was 19.8MB. 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 of different sizes 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... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_test13_1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c20063fdafbef5c00ec1f1fcfed63f5b6ab29c7a5ae9bd5cc27a6dcf474b9797 --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-17 08:31:21,693 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-17 08:31:21,694 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-17 08:31:21,720 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-17 08:31:21,722 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-17 08:31:21,725 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-17 08:31:21,726 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-17 08:31:21,728 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-17 08:31:21,731 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-17 08:31:21,734 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-17 08:31:21,735 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-17 08:31:21,736 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-17 08:31:21,737 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-17 08:31:21,738 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-17 08:31:21,740 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-17 08:31:21,741 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-17 08:31:21,742 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-17 08:31:21,746 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-17 08:31:21,747 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-17 08:31:21,749 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-17 08:31:21,752 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-17 08:31:21,753 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-17 08:31:21,754 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-17 08:31:21,755 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-17 08:31:21,757 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-17 08:31:21,758 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-17 08:31:21,758 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-17 08:31:21,764 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-17 08:31:21,764 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-17 08:31:21,765 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-17 08:31:21,765 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-17 08:31:21,766 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-17 08:31:21,767 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-17 08:31:21,768 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-17 08:31:21,768 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-17 08:31:21,769 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-17 08:31:21,769 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-17 08:31:21,769 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-17 08:31:21,770 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-17 08:31:21,770 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-17 08:31:21,770 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-17 08:31:21,771 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-02-17 08:31:21,797 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-17 08:31:21,798 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-17 08:31:21,799 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-17 08:31:21,799 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-17 08:31:21,799 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-17 08:31:21,799 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-17 08:31:21,800 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-17 08:31:21,800 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-17 08:31:21,800 INFO L138 SettingsManager]: * Use SBE=true [2023-02-17 08:31:21,801 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-17 08:31:21,801 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-17 08:31:21,801 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-17 08:31:21,801 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-17 08:31:21,802 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-17 08:31:21,802 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-17 08:31:21,802 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-02-17 08:31:21,802 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-02-17 08:31:21,802 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-02-17 08:31:21,802 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-17 08:31:21,802 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-17 08:31:21,803 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-02-17 08:31:21,803 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-02-17 08:31:21,803 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-17 08:31:21,803 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-17 08:31:21,803 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-17 08:31:21,803 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-17 08:31:21,803 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-17 08:31:21,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 08:31:21,804 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-17 08:31:21,804 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-17 08:31:21,804 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-02-17 08:31:21,804 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-02-17 08:31:21,804 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-17 08:31:21,804 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-17 08:31:21,805 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-17 08:31:21,805 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-02-17 08:31:21,805 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-17 08:31:21,805 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c20063fdafbef5c00ec1f1fcfed63f5b6ab29c7a5ae9bd5cc27a6dcf474b9797 [2023-02-17 08:31:22,030 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-17 08:31:22,052 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-17 08:31:22,054 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-17 08:31:22,055 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-17 08:31:22,057 INFO L275 PluginConnector]: CDTParser initialized [2023-02-17 08:31:22,058 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test13_1.i [2023-02-17 08:31:23,116 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-17 08:31:23,335 INFO L351 CDTParser]: Found 1 translation units. [2023-02-17 08:31:23,335 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test13_1.i [2023-02-17 08:31:23,348 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cabedb4b7/6f1a3fe5e60f42a0b761a9c14c0c4842/FLAGeda67d02c [2023-02-17 08:31:23,364 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cabedb4b7/6f1a3fe5e60f42a0b761a9c14c0c4842 [2023-02-17 08:31:23,366 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-17 08:31:23,367 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-17 08:31:23,368 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-17 08:31:23,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-17 08:31:23,370 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-17 08:31:23,370 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 08:31:23" (1/1) ... [2023-02-17 08:31:23,373 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22e6bec2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:31:23, skipping insertion in model container [2023-02-17 08:31:23,373 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 08:31:23" (1/1) ... [2023-02-17 08:31:23,377 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-17 08:31:23,419 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-17 08:31:23,703 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 08:31:23,714 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-02-17 08:31:23,724 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-17 08:31:23,754 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 08:31:23,759 INFO L203 MainTranslator]: Completed pre-run [2023-02-17 08:31:23,785 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 08:31:23,821 INFO L208 MainTranslator]: Completed translation [2023-02-17 08:31:23,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:31:23 WrapperNode [2023-02-17 08:31:23,822 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-17 08:31:23,822 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-17 08:31:23,822 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-17 08:31:23,823 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-17 08:31:23,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:31:23" (1/1) ... [2023-02-17 08:31:23,849 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:31:23" (1/1) ... [2023-02-17 08:31:23,861 INFO L138 Inliner]: procedures = 166, calls = 74, calls flagged for inlining = 21, calls inlined = 4, statements flattened = 22 [2023-02-17 08:31:23,861 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-17 08:31:23,862 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-17 08:31:23,862 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-17 08:31:23,862 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-17 08:31:23,868 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:31:23" (1/1) ... [2023-02-17 08:31:23,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:31:23" (1/1) ... [2023-02-17 08:31:23,871 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:31:23" (1/1) ... [2023-02-17 08:31:23,872 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:31:23" (1/1) ... [2023-02-17 08:31:23,904 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:31:23" (1/1) ... [2023-02-17 08:31:23,907 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:31:23" (1/1) ... [2023-02-17 08:31:23,912 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:31:23" (1/1) ... [2023-02-17 08:31:23,918 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:31:23" (1/1) ... [2023-02-17 08:31:23,923 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-17 08:31:23,924 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-17 08:31:23,924 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-17 08:31:23,925 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-17 08:31:23,925 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:31:23" (1/1) ... [2023-02-17 08:31:23,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 08:31:23,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 08:31:23,969 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) [2023-02-17 08:31:23,992 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 [2023-02-17 08:31:24,003 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2023-02-17 08:31:24,004 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2023-02-17 08:31:24,004 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2023-02-17 08:31:24,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2023-02-17 08:31:24,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-02-17 08:31:24,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-02-17 08:31:24,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2023-02-17 08:31:24,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2023-02-17 08:31:24,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-02-17 08:31:24,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-17 08:31:24,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-02-17 08:31:24,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-02-17 08:31:24,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-02-17 08:31:24,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-17 08:31:24,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-17 08:31:24,085 INFO L235 CfgBuilder]: Building ICFG [2023-02-17 08:31:24,087 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-17 08:31:24,258 INFO L276 CfgBuilder]: Performing block encoding [2023-02-17 08:31:24,265 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-17 08:31:24,265 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-02-17 08:31:24,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 08:31:24 BoogieIcfgContainer [2023-02-17 08:31:24,267 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-17 08:31:24,269 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-17 08:31:24,269 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-17 08:31:24,271 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-17 08:31:24,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.02 08:31:23" (1/3) ... [2023-02-17 08:31:24,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bd87bc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 08:31:24, skipping insertion in model container [2023-02-17 08:31:24,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:31:23" (2/3) ... [2023-02-17 08:31:24,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bd87bc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 08:31:24, skipping insertion in model container [2023-02-17 08:31:24,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 08:31:24" (3/3) ... [2023-02-17 08:31:24,274 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test13_1.i [2023-02-17 08:31:24,286 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-17 08:31:24,287 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2023-02-17 08:31:24,348 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-17 08:31:24,385 INFO L357 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, mAutomataTypeConcurrency=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5a2cc917, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-17 08:31:24,386 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-02-17 08:31:24,389 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 25 states have (on average 1.68) internal successors, (42), 41 states have internal predecessors, (42), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-17 08:31:24,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-17 08:31:24,393 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:31:24,394 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:31:24,394 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_list_addErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_list_addErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_list_addErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 12 more)] === [2023-02-17 08:31:24,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:31:24,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1806778067, now seen corresponding path program 1 times [2023-02-17 08:31:24,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-17 08:31:24,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1415403218] [2023-02-17 08:31:24,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:31:24,407 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-17 08:31:24,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-17 08:31:24,410 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-17 08:31:24,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-02-17 08:31:24,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:31:24,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-17 08:31:24,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 08:31:24,558 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 08:31:24,558 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28 [2023-02-17 08:31:24,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:31:24,594 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-17 08:31:24,594 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-17 08:31:24,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1415403218] [2023-02-17 08:31:24,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1415403218] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:31:24,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:31:24,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-17 08:31:24,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792044572] [2023-02-17 08:31:24,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:31:24,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-17 08:31:24,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-17 08:31:24,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-17 08:31:24,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=30, Unknown=1, NotChecked=0, Total=42 [2023-02-17 08:31:24,625 INFO L87 Difference]: Start difference. First operand has 49 states, 25 states have (on average 1.68) internal successors, (42), 41 states have internal predecessors, (42), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-17 08:31:24,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:31:24,880 INFO L93 Difference]: Finished difference Result 50 states and 51 transitions. [2023-02-17 08:31:24,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-17 08:31:24,882 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2023-02-17 08:31:24,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:31:24,887 INFO L225 Difference]: With dead ends: 50 [2023-02-17 08:31:24,887 INFO L226 Difference]: Without dead ends: 48 [2023-02-17 08:31:24,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=70, Unknown=1, NotChecked=0, Total=110 [2023-02-17 08:31:24,890 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 106 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 14 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-17 08:31:24,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 41 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 115 Invalid, 14 Unknown, 0 Unchecked, 0.2s Time] [2023-02-17 08:31:24,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-02-17 08:31:24,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 46. [2023-02-17 08:31:24,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 24 states have (on average 1.625) internal successors, (39), 38 states have internal predecessors, (39), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-17 08:31:24,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2023-02-17 08:31:24,912 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 12 [2023-02-17 08:31:24,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:31:24,913 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2023-02-17 08:31:24,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-17 08:31:24,913 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2023-02-17 08:31:24,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-17 08:31:24,913 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:31:24,914 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:31:24,935 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-02-17 08:31:25,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-17 08:31:25,136 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_list_addErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_list_addErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_list_addErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 12 more)] === [2023-02-17 08:31:25,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:31:25,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1806778068, now seen corresponding path program 1 times [2023-02-17 08:31:25,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-17 08:31:25,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [337194839] [2023-02-17 08:31:25,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:31:25,137 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-17 08:31:25,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-17 08:31:25,139 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-17 08:31:25,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-02-17 08:31:25,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:31:25,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 15 conjunts are in the unsatisfiable core [2023-02-17 08:31:25,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 08:31:27,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 08:31:27,242 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 12 treesize of output 14 [2023-02-17 08:31:27,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:31:27,284 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-17 08:31:27,284 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-17 08:31:27,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [337194839] [2023-02-17 08:31:27,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [337194839] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:31:27,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:31:27,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-17 08:31:27,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941165899] [2023-02-17 08:31:27,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:31:27,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-17 08:31:27,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-17 08:31:27,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-17 08:31:27,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=40, Unknown=2, NotChecked=0, Total=56 [2023-02-17 08:31:27,287 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-17 08:31:27,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:31:27,642 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2023-02-17 08:31:27,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-17 08:31:27,643 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2023-02-17 08:31:27,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:31:27,643 INFO L225 Difference]: With dead ends: 47 [2023-02-17 08:31:27,643 INFO L226 Difference]: Without dead ends: 47 [2023-02-17 08:31:27,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=48, Invalid=106, Unknown=2, NotChecked=0, Total=156 [2023-02-17 08:31:27,644 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 74 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 17 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-17 08:31:27,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 45 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 139 Invalid, 3 Unknown, 0 Unchecked, 0.3s Time] [2023-02-17 08:31:27,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-02-17 08:31:27,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2023-02-17 08:31:27,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 37 states have internal predecessors, (38), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-17 08:31:27,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2023-02-17 08:31:27,649 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 12 [2023-02-17 08:31:27,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:31:27,649 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2023-02-17 08:31:27,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-17 08:31:27,650 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2023-02-17 08:31:27,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-02-17 08:31:27,650 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:31:27,650 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:31:27,663 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-02-17 08:31:27,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-17 08:31:27,851 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_list_addErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_list_addErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 12 more)] === [2023-02-17 08:31:27,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:31:27,852 INFO L85 PathProgramCache]: Analyzing trace with hash 177362515, now seen corresponding path program 1 times [2023-02-17 08:31:27,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-17 08:31:27,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1962870379] [2023-02-17 08:31:27,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:31:27,852 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-17 08:31:27,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-17 08:31:27,853 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-17 08:31:27,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-02-17 08:31:27,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:31:27,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-17 08:31:27,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 08:31:27,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:31:27,902 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-17 08:31:27,903 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-17 08:31:27,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1962870379] [2023-02-17 08:31:27,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1962870379] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:31:27,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:31:27,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-17 08:31:27,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443562656] [2023-02-17 08:31:27,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:31:27,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-17 08:31:27,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-17 08:31:27,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-17 08:31:27,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-17 08:31:27,905 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-17 08:31:27,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:31:27,922 INFO L93 Difference]: Finished difference Result 55 states and 57 transitions. [2023-02-17 08:31:27,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-17 08:31:27,922 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2023-02-17 08:31:27,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:31:27,923 INFO L225 Difference]: With dead ends: 55 [2023-02-17 08:31:27,924 INFO L226 Difference]: Without dead ends: 55 [2023-02-17 08:31:27,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-17 08:31:27,925 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 4 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 08:31:27,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 186 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 08:31:27,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-02-17 08:31:27,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 49. [2023-02-17 08:31:27,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 27 states have (on average 1.5185185185185186) internal successors, (41), 40 states have internal predecessors, (41), 4 states have call successors, (4), 4 states have call predecessors, (4), 5 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2023-02-17 08:31:27,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 50 transitions. [2023-02-17 08:31:27,930 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 50 transitions. Word has length 13 [2023-02-17 08:31:27,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:31:27,931 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 50 transitions. [2023-02-17 08:31:27,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-17 08:31:27,931 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 50 transitions. [2023-02-17 08:31:27,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-02-17 08:31:27,931 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:31:27,931 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:31:27,940 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-02-17 08:31:28,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-17 08:31:28,140 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_list_addErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_list_addErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 12 more)] === [2023-02-17 08:31:28,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:31:28,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1630091948, now seen corresponding path program 1 times [2023-02-17 08:31:28,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-17 08:31:28,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1773105307] [2023-02-17 08:31:28,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:31:28,141 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-17 08:31:28,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-17 08:31:28,142 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-17 08:31:28,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-02-17 08:31:28,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:31:28,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-17 08:31:28,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 08:31:28,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:31:28,198 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-17 08:31:28,198 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-17 08:31:28,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1773105307] [2023-02-17 08:31:28,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1773105307] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:31:28,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:31:28,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-17 08:31:28,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358079780] [2023-02-17 08:31:28,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:31:28,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-17 08:31:28,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-17 08:31:28,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-17 08:31:28,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-02-17 08:31:28,200 INFO L87 Difference]: Start difference. First operand 49 states and 50 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-17 08:31:28,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:31:28,338 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2023-02-17 08:31:28,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-17 08:31:28,338 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2023-02-17 08:31:28,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:31:28,339 INFO L225 Difference]: With dead ends: 47 [2023-02-17 08:31:28,339 INFO L226 Difference]: Without dead ends: 47 [2023-02-17 08:31:28,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-02-17 08:31:28,340 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 69 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 08:31:28,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 38 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 08:31:28,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-02-17 08:31:28,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2023-02-17 08:31:28,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 27 states have (on average 1.4444444444444444) internal successors, (39), 38 states have internal predecessors, (39), 4 states have call successors, (4), 4 states have call predecessors, (4), 5 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2023-02-17 08:31:28,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 48 transitions. [2023-02-17 08:31:28,343 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 48 transitions. Word has length 13 [2023-02-17 08:31:28,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:31:28,343 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 48 transitions. [2023-02-17 08:31:28,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-17 08:31:28,343 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2023-02-17 08:31:28,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-02-17 08:31:28,344 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:31:28,344 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:31:28,360 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-02-17 08:31:28,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-17 08:31:28,550 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_list_addErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_list_addErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 12 more)] === [2023-02-17 08:31:28,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:31:28,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1630091947, now seen corresponding path program 1 times [2023-02-17 08:31:28,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-17 08:31:28,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [513984516] [2023-02-17 08:31:28,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:31:28,551 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-17 08:31:28,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-17 08:31:28,552 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-17 08:31:28,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-02-17 08:31:28,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:31:28,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 10 conjunts are in the unsatisfiable core [2023-02-17 08:31:28,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 08:31:28,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:31:28,616 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-17 08:31:28,617 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-17 08:31:28,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [513984516] [2023-02-17 08:31:28,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [513984516] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:31:28,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:31:28,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-17 08:31:28,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694674198] [2023-02-17 08:31:28,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:31:28,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-17 08:31:28,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-17 08:31:28,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-17 08:31:28,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-02-17 08:31:28,618 INFO L87 Difference]: Start difference. First operand 47 states and 48 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-17 08:31:28,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:31:28,885 INFO L93 Difference]: Finished difference Result 79 states and 79 transitions. [2023-02-17 08:31:28,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-17 08:31:28,886 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2023-02-17 08:31:28,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:31:28,887 INFO L225 Difference]: With dead ends: 79 [2023-02-17 08:31:28,887 INFO L226 Difference]: Without dead ends: 79 [2023-02-17 08:31:28,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-02-17 08:31:28,888 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 60 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-17 08:31:28,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 136 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-17 08:31:28,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2023-02-17 08:31:28,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 68. [2023-02-17 08:31:28,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 42 states have (on average 1.4761904761904763) internal successors, (62), 54 states have internal predecessors, (62), 7 states have call successors, (7), 7 states have call predecessors, (7), 8 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-02-17 08:31:28,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 77 transitions. [2023-02-17 08:31:28,893 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 77 transitions. Word has length 13 [2023-02-17 08:31:28,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:31:28,893 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 77 transitions. [2023-02-17 08:31:28,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-17 08:31:28,893 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 77 transitions. [2023-02-17 08:31:28,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-17 08:31:28,894 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:31:28,894 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:31:28,900 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-02-17 08:31:29,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-17 08:31:29,101 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __ldv_list_addErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_list_addErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_list_addErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 12 more)] === [2023-02-17 08:31:29,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:31:29,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1195264903, now seen corresponding path program 1 times [2023-02-17 08:31:29,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-17 08:31:29,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [417117498] [2023-02-17 08:31:29,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:31:29,101 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-17 08:31:29,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-17 08:31:29,103 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-17 08:31:29,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-02-17 08:31:29,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:31:29,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-17 08:31:29,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 08:31:29,223 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-02-17 08:31:29,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:31:29,245 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-17 08:31:29,245 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-17 08:31:29,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [417117498] [2023-02-17 08:31:29,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [417117498] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:31:29,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:31:29,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-17 08:31:29,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901066971] [2023-02-17 08:31:29,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:31:29,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-17 08:31:29,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-17 08:31:29,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-17 08:31:29,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-02-17 08:31:29,247 INFO L87 Difference]: Start difference. First operand 68 states and 77 transitions. Second operand has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-17 08:31:29,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:31:29,456 INFO L93 Difference]: Finished difference Result 77 states and 84 transitions. [2023-02-17 08:31:29,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-17 08:31:29,457 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2023-02-17 08:31:29,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:31:29,458 INFO L225 Difference]: With dead ends: 77 [2023-02-17 08:31:29,458 INFO L226 Difference]: Without dead ends: 77 [2023-02-17 08:31:29,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2023-02-17 08:31:29,459 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 42 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-17 08:31:29,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 157 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-17 08:31:29,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-02-17 08:31:29,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 67. [2023-02-17 08:31:29,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 53 states have internal predecessors, (60), 7 states have call successors, (7), 7 states have call predecessors, (7), 8 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-02-17 08:31:29,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 75 transitions. [2023-02-17 08:31:29,463 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 75 transitions. Word has length 15 [2023-02-17 08:31:29,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:31:29,463 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 75 transitions. [2023-02-17 08:31:29,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-17 08:31:29,463 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 75 transitions. [2023-02-17 08:31:29,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-17 08:31:29,464 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:31:29,464 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:31:29,470 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-02-17 08:31:29,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-17 08:31:29,670 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __ldv_list_addErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_list_addErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_list_addErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 12 more)] === [2023-02-17 08:31:29,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:31:29,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1195264904, now seen corresponding path program 1 times [2023-02-17 08:31:29,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-17 08:31:29,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [270185993] [2023-02-17 08:31:29,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:31:29,671 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-17 08:31:29,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-17 08:31:29,672 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-17 08:31:29,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-02-17 08:31:29,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:31:29,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 27 conjunts are in the unsatisfiable core [2023-02-17 08:31:29,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 08:31:31,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 08:31:31,775 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 12 treesize of output 14 [2023-02-17 08:31:31,813 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-02-17 08:31:31,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-02-17 08:31:31,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:31:31,865 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-17 08:31:31,865 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-17 08:31:31,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [270185993] [2023-02-17 08:31:31,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [270185993] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:31:31,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:31:31,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-02-17 08:31:31,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568745349] [2023-02-17 08:31:31,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:31:31,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-02-17 08:31:31,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-17 08:31:31,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-02-17 08:31:31,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=88, Unknown=2, NotChecked=0, Total=110 [2023-02-17 08:31:31,866 INFO L87 Difference]: Start difference. First operand 67 states and 75 transitions. Second operand has 11 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-17 08:31:32,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:31:32,274 INFO L93 Difference]: Finished difference Result 71 states and 79 transitions. [2023-02-17 08:31:32,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-17 08:31:32,275 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2023-02-17 08:31:32,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:31:32,276 INFO L225 Difference]: With dead ends: 71 [2023-02-17 08:31:32,276 INFO L226 Difference]: Without dead ends: 71 [2023-02-17 08:31:32,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=91, Invalid=287, Unknown=2, NotChecked=0, Total=380 [2023-02-17 08:31:32,277 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 69 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 25 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-17 08:31:32,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 127 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 201 Invalid, 2 Unknown, 0 Unchecked, 0.3s Time] [2023-02-17 08:31:32,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-02-17 08:31:32,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 66. [2023-02-17 08:31:32,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 42 states have (on average 1.380952380952381) internal successors, (58), 52 states have internal predecessors, (58), 7 states have call successors, (7), 7 states have call predecessors, (7), 8 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-02-17 08:31:32,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 73 transitions. [2023-02-17 08:31:32,281 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 73 transitions. Word has length 15 [2023-02-17 08:31:32,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:31:32,281 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 73 transitions. [2023-02-17 08:31:32,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-17 08:31:32,281 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 73 transitions. [2023-02-17 08:31:32,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-17 08:31:32,281 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:31:32,282 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:31:32,291 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-02-17 08:31:32,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-17 08:31:32,482 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __ldv_list_addErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_list_addErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_list_addErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 12 more)] === [2023-02-17 08:31:32,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:31:32,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1601493656, now seen corresponding path program 1 times [2023-02-17 08:31:32,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-17 08:31:32,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [284809119] [2023-02-17 08:31:32,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:31:32,483 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-17 08:31:32,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-17 08:31:32,484 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-17 08:31:32,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-02-17 08:31:32,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:31:32,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-17 08:31:32,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 08:31:32,537 INFO L350 Elim1Store]: Elim1 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 [2023-02-17 08:31:32,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:31:32,572 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-17 08:31:32,572 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-17 08:31:32,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [284809119] [2023-02-17 08:31:32,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [284809119] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:31:32,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:31:32,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-02-17 08:31:32,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760304565] [2023-02-17 08:31:32,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:31:32,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-02-17 08:31:32,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-17 08:31:32,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-02-17 08:31:32,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-02-17 08:31:32,574 INFO L87 Difference]: Start difference. First operand 66 states and 73 transitions. Second operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-17 08:31:32,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:31:32,834 INFO L93 Difference]: Finished difference Result 72 states and 72 transitions. [2023-02-17 08:31:32,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-17 08:31:32,835 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2023-02-17 08:31:32,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:31:32,836 INFO L225 Difference]: With dead ends: 72 [2023-02-17 08:31:32,836 INFO L226 Difference]: Without dead ends: 72 [2023-02-17 08:31:32,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-02-17 08:31:32,836 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 33 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-17 08:31:32,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 169 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-17 08:31:32,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2023-02-17 08:31:32,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 65. [2023-02-17 08:31:32,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 42 states have (on average 1.3095238095238095) internal successors, (55), 51 states have internal predecessors, (55), 7 states have call successors, (7), 7 states have call predecessors, (7), 8 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-02-17 08:31:32,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 70 transitions. [2023-02-17 08:31:32,840 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 70 transitions. Word has length 16 [2023-02-17 08:31:32,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:31:32,840 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 70 transitions. [2023-02-17 08:31:32,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-17 08:31:32,840 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 70 transitions. [2023-02-17 08:31:32,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-17 08:31:32,841 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:31:32,841 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:31:32,848 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-02-17 08:31:33,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-17 08:31:33,048 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __ldv_list_addErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_list_addErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_list_addErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 12 more)] === [2023-02-17 08:31:33,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:31:33,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1601493655, now seen corresponding path program 1 times [2023-02-17 08:31:33,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-17 08:31:33,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [736314669] [2023-02-17 08:31:33,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:31:33,049 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-17 08:31:33,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-17 08:31:33,050 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-17 08:31:33,051 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-02-17 08:31:33,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:31:33,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 18 conjunts are in the unsatisfiable core [2023-02-17 08:31:33,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 08:31:33,114 INFO L350 Elim1Store]: Elim1 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 [2023-02-17 08:31:33,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:31:33,169 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-17 08:31:33,169 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-17 08:31:33,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [736314669] [2023-02-17 08:31:33,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [736314669] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:31:33,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:31:33,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-02-17 08:31:33,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50871138] [2023-02-17 08:31:33,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:31:33,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-02-17 08:31:33,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-17 08:31:33,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-02-17 08:31:33,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-02-17 08:31:33,170 INFO L87 Difference]: Start difference. First operand 65 states and 70 transitions. Second operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 7 states have internal predecessors, (12), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-17 08:31:33,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:31:33,457 INFO L93 Difference]: Finished difference Result 70 states and 70 transitions. [2023-02-17 08:31:33,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-17 08:31:33,458 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 7 states have internal predecessors, (12), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2023-02-17 08:31:33,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:31:33,458 INFO L225 Difference]: With dead ends: 70 [2023-02-17 08:31:33,458 INFO L226 Difference]: Without dead ends: 70 [2023-02-17 08:31:33,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-02-17 08:31:33,459 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 27 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-17 08:31:33,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 213 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-17 08:31:33,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-02-17 08:31:33,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 65. [2023-02-17 08:31:33,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 42 states have (on average 1.2619047619047619) internal successors, (53), 51 states have internal predecessors, (53), 7 states have call successors, (7), 7 states have call predecessors, (7), 8 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-02-17 08:31:33,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 68 transitions. [2023-02-17 08:31:33,462 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 68 transitions. Word has length 16 [2023-02-17 08:31:33,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:31:33,462 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 68 transitions. [2023-02-17 08:31:33,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 7 states have internal predecessors, (12), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-17 08:31:33,462 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 68 transitions. [2023-02-17 08:31:33,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-17 08:31:33,463 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:31:33,463 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:31:33,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-02-17 08:31:33,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-17 08:31:33,672 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __ldv_list_addErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_list_addErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_list_addErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 12 more)] === [2023-02-17 08:31:33,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:31:33,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1472410937, now seen corresponding path program 1 times [2023-02-17 08:31:33,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-17 08:31:33,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [633394920] [2023-02-17 08:31:33,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:31:33,673 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-17 08:31:33,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-17 08:31:33,674 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-17 08:31:33,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-02-17 08:31:33,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:31:33,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-17 08:31:33,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 08:31:33,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:31:33,741 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-17 08:31:33,741 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-17 08:31:33,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [633394920] [2023-02-17 08:31:33,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [633394920] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:31:33,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:31:33,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-17 08:31:33,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791699598] [2023-02-17 08:31:33,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:31:33,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-17 08:31:33,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-17 08:31:33,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-17 08:31:33,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-17 08:31:33,742 INFO L87 Difference]: Start difference. First operand 65 states and 68 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-17 08:31:33,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:31:33,756 INFO L93 Difference]: Finished difference Result 51 states and 50 transitions. [2023-02-17 08:31:33,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-17 08:31:33,757 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2023-02-17 08:31:33,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:31:33,757 INFO L225 Difference]: With dead ends: 51 [2023-02-17 08:31:33,757 INFO L226 Difference]: Without dead ends: 51 [2023-02-17 08:31:33,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-17 08:31:33,758 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 4 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 08:31:33,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 148 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 08:31:33,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-02-17 08:31:33,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 48. [2023-02-17 08:31:33,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 32 states have (on average 1.15625) internal successors, (37), 37 states have internal predecessors, (37), 5 states have call successors, (5), 5 states have call predecessors, (5), 6 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-02-17 08:31:33,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2023-02-17 08:31:33,761 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 16 [2023-02-17 08:31:33,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:31:33,761 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2023-02-17 08:31:33,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-17 08:31:33,761 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2023-02-17 08:31:33,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-17 08:31:33,761 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:31:33,762 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:31:33,768 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-02-17 08:31:33,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-17 08:31:33,969 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __ldv_list_addErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_list_addErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_list_addErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 12 more)] === [2023-02-17 08:31:33,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:31:33,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1437110869, now seen corresponding path program 1 times [2023-02-17 08:31:33,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-17 08:31:33,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2018303100] [2023-02-17 08:31:33,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:31:33,970 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-17 08:31:33,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-17 08:31:33,972 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-17 08:31:33,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-02-17 08:31:34,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:31:34,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-17 08:31:34,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 08:31:34,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:31:34,043 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-17 08:31:34,044 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-17 08:31:34,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2018303100] [2023-02-17 08:31:34,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2018303100] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:31:34,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:31:34,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-17 08:31:34,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300372787] [2023-02-17 08:31:34,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:31:34,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-17 08:31:34,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-17 08:31:34,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-17 08:31:34,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-17 08:31:34,045 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand has 5 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-17 08:31:34,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:31:34,127 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2023-02-17 08:31:34,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-17 08:31:34,127 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2023-02-17 08:31:34,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:31:34,128 INFO L225 Difference]: With dead ends: 47 [2023-02-17 08:31:34,128 INFO L226 Difference]: Without dead ends: 47 [2023-02-17 08:31:34,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-17 08:31:34,128 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 12 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 08:31:34,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 88 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 08:31:34,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-02-17 08:31:34,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2023-02-17 08:31:34,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 32 states have (on average 1.125) internal successors, (36), 36 states have internal predecessors, (36), 5 states have call successors, (5), 5 states have call predecessors, (5), 6 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-02-17 08:31:34,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 47 transitions. [2023-02-17 08:31:34,131 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 47 transitions. Word has length 18 [2023-02-17 08:31:34,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:31:34,131 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 47 transitions. [2023-02-17 08:31:34,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-17 08:31:34,131 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2023-02-17 08:31:34,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-17 08:31:34,132 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:31:34,132 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:31:34,139 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2023-02-17 08:31:34,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-17 08:31:34,340 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __ldv_list_addErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_list_addErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_list_addErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 12 more)] === [2023-02-17 08:31:34,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:31:34,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1437110868, now seen corresponding path program 1 times [2023-02-17 08:31:34,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-17 08:31:34,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1234734071] [2023-02-17 08:31:34,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:31:34,340 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-17 08:31:34,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-17 08:31:34,342 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-17 08:31:34,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-02-17 08:31:34,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:31:34,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-17 08:31:34,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 08:31:34,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:31:34,441 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-17 08:31:34,441 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-17 08:31:34,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1234734071] [2023-02-17 08:31:34,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1234734071] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:31:34,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:31:34,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-17 08:31:34,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712948164] [2023-02-17 08:31:34,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:31:34,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-17 08:31:34,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-17 08:31:34,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-17 08:31:34,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-02-17 08:31:34,443 INFO L87 Difference]: Start difference. First operand 47 states and 47 transitions. Second operand has 8 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-17 08:31:34,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:31:34,556 INFO L93 Difference]: Finished difference Result 46 states and 46 transitions. [2023-02-17 08:31:34,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-17 08:31:34,556 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2023-02-17 08:31:34,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:31:34,557 INFO L225 Difference]: With dead ends: 46 [2023-02-17 08:31:34,557 INFO L226 Difference]: Without dead ends: 46 [2023-02-17 08:31:34,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2023-02-17 08:31:34,558 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 40 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 08:31:34,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 112 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 08:31:34,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-02-17 08:31:34,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2023-02-17 08:31:34,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 32 states have (on average 1.09375) internal successors, (35), 35 states have internal predecessors, (35), 5 states have call successors, (5), 5 states have call predecessors, (5), 6 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-02-17 08:31:34,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2023-02-17 08:31:34,561 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 18 [2023-02-17 08:31:34,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:31:34,561 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2023-02-17 08:31:34,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-17 08:31:34,562 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2023-02-17 08:31:34,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-17 08:31:34,562 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:31:34,562 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:31:34,573 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2023-02-17 08:31:34,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-17 08:31:34,769 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ldv_list_addErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_list_addErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 12 more)] === [2023-02-17 08:31:34,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:31:34,769 INFO L85 PathProgramCache]: Analyzing trace with hash -245688502, now seen corresponding path program 1 times [2023-02-17 08:31:34,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-17 08:31:34,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1665615362] [2023-02-17 08:31:34,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:31:34,770 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-17 08:31:34,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-17 08:31:34,771 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-17 08:31:34,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-02-17 08:31:34,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:31:34,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-17 08:31:34,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 08:31:34,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:31:34,833 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-17 08:31:34,833 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-17 08:31:34,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1665615362] [2023-02-17 08:31:34,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1665615362] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:31:34,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:31:34,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 08:31:34,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726330671] [2023-02-17 08:31:34,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:31:34,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-17 08:31:34,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-17 08:31:34,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-17 08:31:34,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-17 08:31:34,835 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-17 08:31:34,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:31:34,908 INFO L93 Difference]: Finished difference Result 48 states and 47 transitions. [2023-02-17 08:31:34,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-17 08:31:34,908 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2023-02-17 08:31:34,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:31:34,909 INFO L225 Difference]: With dead ends: 48 [2023-02-17 08:31:34,909 INFO L226 Difference]: Without dead ends: 35 [2023-02-17 08:31:34,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-17 08:31:34,909 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 17 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 08:31:34,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 36 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 08:31:34,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-02-17 08:31:34,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2023-02-17 08:31:34,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 26 states have internal predecessors, (26), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-17 08:31:34,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 34 transitions. [2023-02-17 08:31:34,912 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 34 transitions. Word has length 18 [2023-02-17 08:31:34,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:31:34,912 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 34 transitions. [2023-02-17 08:31:34,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-17 08:31:34,912 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 34 transitions. [2023-02-17 08:31:34,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-02-17 08:31:34,913 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:31:34,913 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:31:34,921 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-02-17 08:31:35,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-17 08:31:35,119 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_list_addErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_list_addErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 12 more)] === [2023-02-17 08:31:35,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:31:35,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1690332874, now seen corresponding path program 1 times [2023-02-17 08:31:35,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-17 08:31:35,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1999361490] [2023-02-17 08:31:35,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:31:35,120 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-17 08:31:35,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-17 08:31:35,121 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-17 08:31:35,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-02-17 08:31:35,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:31:35,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 11 conjunts are in the unsatisfiable core [2023-02-17 08:31:35,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 08:31:35,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:31:35,244 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-17 08:31:35,244 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-17 08:31:35,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1999361490] [2023-02-17 08:31:35,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1999361490] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:31:35,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:31:35,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-17 08:31:35,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564252778] [2023-02-17 08:31:35,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:31:35,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-17 08:31:35,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-17 08:31:35,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-17 08:31:35,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-02-17 08:31:35,246 INFO L87 Difference]: Start difference. First operand 35 states and 34 transitions. Second operand has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-17 08:31:35,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:31:35,390 INFO L93 Difference]: Finished difference Result 34 states and 33 transitions. [2023-02-17 08:31:35,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-17 08:31:35,390 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 27 [2023-02-17 08:31:35,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:31:35,391 INFO L225 Difference]: With dead ends: 34 [2023-02-17 08:31:35,391 INFO L226 Difference]: Without dead ends: 34 [2023-02-17 08:31:35,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-02-17 08:31:35,392 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 31 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 08:31:35,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 85 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 08:31:35,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-02-17 08:31:35,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2023-02-17 08:31:35,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 24 states have (on average 1.0416666666666667) internal successors, (25), 25 states have internal predecessors, (25), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-17 08:31:35,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 33 transitions. [2023-02-17 08:31:35,393 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 33 transitions. Word has length 27 [2023-02-17 08:31:35,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:31:35,393 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 33 transitions. [2023-02-17 08:31:35,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-17 08:31:35,393 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 33 transitions. [2023-02-17 08:31:35,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-02-17 08:31:35,394 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:31:35,394 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:31:35,403 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-02-17 08:31:35,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-17 08:31:35,597 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_list_addErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_list_addErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 12 more)] === [2023-02-17 08:31:35,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:31:35,597 INFO L85 PathProgramCache]: Analyzing trace with hash -860711565, now seen corresponding path program 1 times [2023-02-17 08:31:35,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-17 08:31:35,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1104051779] [2023-02-17 08:31:35,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:31:35,598 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-17 08:31:35,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-17 08:31:35,599 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-17 08:31:35,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-02-17 08:31:35,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:31:35,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 23 conjunts are in the unsatisfiable core [2023-02-17 08:31:35,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 08:31:35,683 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2023-02-17 08:31:35,687 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2023-02-17 08:31:35,776 INFO L350 Elim1Store]: Elim1 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 25 treesize of output 17 [2023-02-17 08:31:35,780 INFO L350 Elim1Store]: Elim1 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 21 treesize of output 13 [2023-02-17 08:31:35,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:31:35,830 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-17 08:31:35,830 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-17 08:31:35,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1104051779] [2023-02-17 08:31:35,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1104051779] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:31:35,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:31:35,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-02-17 08:31:35,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343826944] [2023-02-17 08:31:35,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:31:35,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-02-17 08:31:35,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-17 08:31:35,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-02-17 08:31:35,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-02-17 08:31:35,831 INFO L87 Difference]: Start difference. First operand 34 states and 33 transitions. Second operand has 13 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 9 states have internal predecessors, (21), 3 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-17 08:31:36,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:31:36,218 INFO L93 Difference]: Finished difference Result 33 states and 32 transitions. [2023-02-17 08:31:36,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-02-17 08:31:36,218 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 9 states have internal predecessors, (21), 3 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2023-02-17 08:31:36,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:31:36,219 INFO L225 Difference]: With dead ends: 33 [2023-02-17 08:31:36,219 INFO L226 Difference]: Without dead ends: 33 [2023-02-17 08:31:36,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=448, Unknown=0, NotChecked=0, Total=552 [2023-02-17 08:31:36,219 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 36 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-17 08:31:36,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 105 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-17 08:31:36,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-02-17 08:31:36,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2023-02-17 08:31:36,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 24 states have (on average 1.0) internal successors, (24), 24 states have internal predecessors, (24), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-17 08:31:36,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 32 transitions. [2023-02-17 08:31:36,221 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 32 transitions. Word has length 28 [2023-02-17 08:31:36,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:31:36,221 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 32 transitions. [2023-02-17 08:31:36,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 9 states have internal predecessors, (21), 3 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-17 08:31:36,221 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 32 transitions. [2023-02-17 08:31:36,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-02-17 08:31:36,222 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:31:36,222 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:31:36,239 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-02-17 08:31:36,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-17 08:31:36,422 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ldv_list_addErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_list_addErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 12 more)] === [2023-02-17 08:31:36,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:31:36,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1571524617, now seen corresponding path program 1 times [2023-02-17 08:31:36,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-17 08:31:36,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [399576588] [2023-02-17 08:31:36,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:31:36,423 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-17 08:31:36,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-17 08:31:36,424 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-17 08:31:36,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-02-17 08:31:36,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 08:31:36,517 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 08:31:36,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 08:31:36,590 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-02-17 08:31:36,592 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-02-17 08:31:36,593 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (14 of 15 remaining) [2023-02-17 08:31:36,597 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 15 remaining) [2023-02-17 08:31:36,598 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 15 remaining) [2023-02-17 08:31:36,598 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 15 remaining) [2023-02-17 08:31:36,598 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 15 remaining) [2023-02-17 08:31:36,598 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 15 remaining) [2023-02-17 08:31:36,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 15 remaining) [2023-02-17 08:31:36,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 15 remaining) [2023-02-17 08:31:36,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 15 remaining) [2023-02-17 08:31:36,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 15 remaining) [2023-02-17 08:31:36,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 15 remaining) [2023-02-17 08:31:36,600 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 15 remaining) [2023-02-17 08:31:36,600 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 15 remaining) [2023-02-17 08:31:36,600 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 15 remaining) [2023-02-17 08:31:36,600 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 15 remaining) [2023-02-17 08:31:36,610 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-02-17 08:31:36,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-17 08:31:36,813 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:31:36,815 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-17 08:31:36,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.02 08:31:36 BoogieIcfgContainer [2023-02-17 08:31:36,838 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-17 08:31:36,839 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-17 08:31:36,839 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-17 08:31:36,839 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-17 08:31:36,839 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 08:31:24" (3/4) ... [2023-02-17 08:31:36,841 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-17 08:31:36,841 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-17 08:31:36,841 INFO L158 Benchmark]: Toolchain (without parser) took 13474.02ms. Allocated memory was 69.2MB in the beginning and 102.8MB in the end (delta: 33.6MB). Free memory was 39.5MB in the beginning and 31.7MB in the end (delta: 7.9MB). Peak memory consumption was 42.6MB. Max. memory is 16.1GB. [2023-02-17 08:31:36,841 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 54.5MB. Free memory was 31.4MB in the beginning and 31.4MB in the end (delta: 1.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 08:31:36,841 INFO L158 Benchmark]: CACSL2BoogieTranslator took 454.07ms. Allocated memory is still 69.2MB. Free memory was 39.3MB in the beginning and 45.4MB in the end (delta: -6.0MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2023-02-17 08:31:36,841 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.03ms. Allocated memory is still 69.2MB. Free memory was 45.4MB in the beginning and 43.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-17 08:31:36,842 INFO L158 Benchmark]: Boogie Preprocessor took 61.92ms. Allocated memory is still 69.2MB. Free memory was 43.3MB in the beginning and 41.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-17 08:31:36,842 INFO L158 Benchmark]: RCFGBuilder took 342.71ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 41.5MB in the beginning and 57.9MB in the end (delta: -16.4MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. [2023-02-17 08:31:36,842 INFO L158 Benchmark]: TraceAbstraction took 12569.52ms. Allocated memory was 83.9MB in the beginning and 102.8MB in the end (delta: 18.9MB). Free memory was 57.1MB in the beginning and 31.7MB in the end (delta: 25.5MB). Peak memory consumption was 45.1MB. Max. memory is 16.1GB. [2023-02-17 08:31:36,842 INFO L158 Benchmark]: Witness Printer took 2.08ms. Allocated memory is still 102.8MB. Free memory is still 31.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 08:31:36,843 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 54.5MB. Free memory was 31.4MB in the beginning and 31.4MB in the end (delta: 1.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 454.07ms. Allocated memory is still 69.2MB. Free memory was 39.3MB in the beginning and 45.4MB in the end (delta: -6.0MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.03ms. Allocated memory is still 69.2MB. Free memory was 45.4MB in the beginning and 43.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.92ms. Allocated memory is still 69.2MB. Free memory was 43.3MB in the beginning and 41.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 342.71ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 41.5MB in the beginning and 57.9MB in the end (delta: -16.4MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. * TraceAbstraction took 12569.52ms. Allocated memory was 83.9MB in the beginning and 102.8MB in the end (delta: 18.9MB). Free memory was 57.1MB in the beginning and 31.7MB in the end (delta: 25.5MB). Peak memory consumption was 45.1MB. Max. memory is 16.1GB. * Witness Printer took 2.08ms. Allocated memory is still 102.8MB. Free memory is still 31.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 772]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 772. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L757] struct ldv_list_head global_list_13 = { &(global_list_13), &(global_list_13) }; VAL [global_list_13={2:0}, ldv_global_msg_list={1:0}] [L773] CALL entry_point() [L769] CALL alloc_13() [L763] CALL, EXPR ldv_malloc(sizeof(struct A13)) VAL [\old(size)=12, global_list_13={2:0}, ldv_global_msg_list={1:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L763] RET, EXPR ldv_malloc(sizeof(struct A13)) VAL [global_list_13={2:0}, ldv_global_msg_list={1:0}, ldv_malloc(sizeof(struct A13))={6:0}] [L763] struct A13 *p = (struct A13 *)ldv_malloc(sizeof(struct A13)); [L764] COND TRUE \read(*p) VAL [global_list_13={2:0}, ldv_global_msg_list={1:0}, p={6:0}] [L765] CALL ldv_list_add(&p->list, &global_list_13) VAL [global_list_13={2:0}, head={2:0}, ldv_global_msg_list={1:0}, new={6:4}] [L559] EXPR head->next VAL [global_list_13={2:0}, head={2:0}, head={2:0}, head->next={2:0}, ldv_global_msg_list={1:0}, new={6:4}, new={6:4}] [L559] CALL __ldv_list_add(new, head, head->next) VAL [global_list_13={2:0}, ldv_global_msg_list={1:0}, new={6:4}, next={2:0}, prev={2:0}] [L547] next->prev = new VAL [global_list_13={2:0}, ldv_global_msg_list={1:0}, new={6:4}, new={6:4}, next={2:0}, next={2:0}, prev={2:0}, prev={2:0}] [L548] new->next = next VAL [global_list_13={2:0}, ldv_global_msg_list={1:0}, new={6:4}, new={6:4}, next={2:0}, next={2:0}, prev={2:0}, prev={2:0}] [L549] new->prev = prev VAL [global_list_13={2:0}, ldv_global_msg_list={1:0}, new={6:4}, new={6:4}, next={2:0}, next={2:0}, prev={2:0}, prev={2:0}] [L550] prev->next = new VAL [global_list_13={2:0}, ldv_global_msg_list={1:0}, new={6:4}, new={6:4}, next={2:0}, next={2:0}, prev={2:0}, prev={2:0}] [L559] RET __ldv_list_add(new, head, head->next) VAL [global_list_13={2:0}, head={2:0}, head={2:0}, head->next={2:0}, ldv_global_msg_list={1:0}, new={6:4}, new={6:4}] [L765] RET ldv_list_add(&p->list, &global_list_13) VAL [global_list_13={2:0}, ldv_global_msg_list={1:0}, p={6:0}] [L769] RET alloc_13() [L770] CALL LDV_INIT_LIST_HEAD(&global_list_13) VAL [global_list_13={2:0}, ldv_global_msg_list={1:0}, list={2:0}] [L540] list->next = list VAL [global_list_13={2:0}, ldv_global_msg_list={1:0}, list={2:0}, list={2:0}] [L541] list->prev = list VAL [global_list_13={2:0}, ldv_global_msg_list={1:0}, list={2:0}, list={2:0}] [L770] RET LDV_INIT_LIST_HEAD(&global_list_13) VAL [global_list_13={2:0}, ldv_global_msg_list={1:0}] [L773] RET entry_point() - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 49 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 12.5s, OverallIterations: 16, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 19 mSolverCounterUnknown, 644 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 624 mSDsluCounter, 1686 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1275 mSDsCounter, 104 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1632 IncrementalHoareTripleChecker+Invalid, 1755 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 104 mSolverCounterUnsat, 411 mSDtfsCounter, 1632 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 290 GetRequests, 150 SyntacticMatches, 2 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred in iteration=5, InterpolantAutomatonStates: 121, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 15 MinimizatonAttempts, 51 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 282 NumberOfCodeBlocks, 282 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 235 ConstructedInterpolants, 6 QuantifiedInterpolants, 1916 SizeOfPredicates, 69 NumberOfNonLiveVariables, 1379 ConjunctsInSsa, 169 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-02-17 08:31:36,873 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... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample