./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-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/heap-manipulation/bubble_sort_linux-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 a38de44f112a10364737c35b840e673503a211a020b9f494a50e4a32c8fe31c0 --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-18 21:26:24,211 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 21:26:24,212 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 21:26:24,243 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 21:26:24,243 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 21:26:24,252 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 21:26:24,253 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 21:26:24,255 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 21:26:24,257 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 21:26:24,261 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 21:26:24,262 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 21:26:24,264 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 21:26:24,264 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 21:26:24,266 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 21:26:24,267 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 21:26:24,267 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 21:26:24,268 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 21:26:24,270 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 21:26:24,271 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 21:26:24,275 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 21:26:24,276 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 21:26:24,280 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 21:26:24,281 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 21:26:24,282 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 21:26:24,285 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 21:26:24,285 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 21:26:24,285 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 21:26:24,286 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 21:26:24,286 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 21:26:24,287 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 21:26:24,287 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 21:26:24,288 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 21:26:24,289 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 21:26:24,289 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 21:26:24,290 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 21:26:24,291 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 21:26:24,291 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 21:26:24,291 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 21:26:24,291 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 21:26:24,292 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 21:26:24,293 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 21:26:24,294 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-02-18 21:26:24,315 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 21:26:24,315 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 21:26:24,315 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 21:26:24,315 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 21:26:24,316 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 21:26:24,316 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 21:26:24,316 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 21:26:24,317 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 21:26:24,317 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 21:26:24,317 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 21:26:24,317 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-18 21:26:24,317 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 21:26:24,317 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 21:26:24,318 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-18 21:26:24,318 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 21:26:24,318 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-02-18 21:26:24,318 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-02-18 21:26:24,318 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-02-18 21:26:24,318 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 21:26:24,318 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-18 21:26:24,318 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-18 21:26:24,318 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 21:26:24,318 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 21:26:24,318 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 21:26:24,318 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 21:26:24,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 21:26:24,319 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 21:26:24,319 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 21:26:24,319 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 21:26:24,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 21:26:24,319 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 21:26:24,319 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 21:26:24,319 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 21:26:24,319 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 21:26:24,320 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a38de44f112a10364737c35b840e673503a211a020b9f494a50e4a32c8fe31c0 [2023-02-18 21:26:24,511 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 21:26:24,531 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 21:26:24,532 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 21:26:24,533 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 21:26:24,533 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 21:26:24,534 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i [2023-02-18 21:26:25,465 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 21:26:25,647 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 21:26:25,651 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i [2023-02-18 21:26:25,668 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7bfe1615/3ceb11ac062148e59e6617401f4e4f96/FLAG6517058e1 [2023-02-18 21:26:25,681 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7bfe1615/3ceb11ac062148e59e6617401f4e4f96 [2023-02-18 21:26:25,682 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 21:26:25,684 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 21:26:25,685 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 21:26:25,685 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 21:26:25,687 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 21:26:25,687 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 09:26:25" (1/1) ... [2023-02-18 21:26:25,688 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@295fc5e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:26:25, skipping insertion in model container [2023-02-18 21:26:25,688 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 09:26:25" (1/1) ... [2023-02-18 21:26:25,693 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 21:26:25,729 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 21:26:25,983 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i[33822,33835] [2023-02-18 21:26:26,001 WARN L569 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2023-02-18 21:26:26,002 WARN L569 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2023-02-18 21:26:26,003 WARN L569 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2023-02-18 21:26:26,026 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 21:26:26,077 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) [2023-02-18 21:26:26,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6c3264e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:26:26, skipping insertion in model container [2023-02-18 21:26:26,078 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 21:26:26,078 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-02-18 21:26:26,079 INFO L158 Benchmark]: Toolchain (without parser) took 395.06ms. Allocated memory is still 136.3MB. Free memory was 96.5MB in the beginning and 107.2MB in the end (delta: -10.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-02-18 21:26:26,080 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 113.2MB. Free memory is still 85.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 21:26:26,080 INFO L158 Benchmark]: CACSL2BoogieTranslator took 393.25ms. Allocated memory is still 136.3MB. Free memory was 96.5MB in the beginning and 107.2MB in the end (delta: -10.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-02-18 21:26:26,082 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 113.2MB. Free memory is still 85.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 393.25ms. Allocated memory is still 136.3MB. Free memory was 96.5MB in the beginning and 107.2MB in the end (delta: -10.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 860]: 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/heap-manipulation/bubble_sort_linux-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 a38de44f112a10364737c35b840e673503a211a020b9f494a50e4a32c8fe31c0 --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-18 21:26:27,585 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 21:26:27,587 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 21:26:27,616 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 21:26:27,616 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 21:26:27,619 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 21:26:27,620 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 21:26:27,622 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 21:26:27,625 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 21:26:27,628 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 21:26:27,629 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 21:26:27,631 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 21:26:27,631 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 21:26:27,632 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 21:26:27,633 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 21:26:27,635 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 21:26:27,635 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 21:26:27,636 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 21:26:27,637 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 21:26:27,641 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 21:26:27,642 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 21:26:27,642 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 21:26:27,643 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 21:26:27,643 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 21:26:27,648 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 21:26:27,648 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 21:26:27,648 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 21:26:27,649 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 21:26:27,650 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 21:26:27,650 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 21:26:27,651 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 21:26:27,651 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 21:26:27,652 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 21:26:27,653 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 21:26:27,653 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 21:26:27,653 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 21:26:27,654 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 21:26:27,654 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 21:26:27,654 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 21:26:27,655 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 21:26:27,655 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 21:26:27,658 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-02-18 21:26:27,685 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 21:26:27,686 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 21:26:27,687 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 21:26:27,687 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 21:26:27,688 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 21:26:27,688 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 21:26:27,689 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 21:26:27,689 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 21:26:27,689 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 21:26:27,689 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 21:26:27,690 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-18 21:26:27,690 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 21:26:27,691 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 21:26:27,691 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-18 21:26:27,691 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 21:26:27,691 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-02-18 21:26:27,691 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-02-18 21:26:27,691 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-02-18 21:26:27,691 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 21:26:27,692 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-18 21:26:27,692 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-02-18 21:26:27,695 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-02-18 21:26:27,696 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-18 21:26:27,696 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 21:26:27,696 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 21:26:27,696 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 21:26:27,696 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 21:26:27,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 21:26:27,697 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 21:26:27,697 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 21:26:27,697 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-02-18 21:26:27,697 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-02-18 21:26:27,697 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 21:26:27,697 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 21:26:27,698 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 21:26:27,698 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-02-18 21:26:27,698 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 21:26:27,698 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a38de44f112a10364737c35b840e673503a211a020b9f494a50e4a32c8fe31c0 [2023-02-18 21:26:27,918 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 21:26:27,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 21:26:27,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 21:26:27,934 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 21:26:27,934 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 21:26:27,935 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i [2023-02-18 21:26:28,925 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 21:26:29,168 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 21:26:29,169 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i [2023-02-18 21:26:29,182 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50fd74dd4/bdcf13c053db4a599bb4416c02557cd0/FLAGbace9eeb0 [2023-02-18 21:26:29,481 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50fd74dd4/bdcf13c053db4a599bb4416c02557cd0 [2023-02-18 21:26:29,483 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 21:26:29,484 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 21:26:29,485 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 21:26:29,485 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 21:26:29,487 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 21:26:29,487 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 09:26:29" (1/1) ... [2023-02-18 21:26:29,488 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18a927e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:26:29, skipping insertion in model container [2023-02-18 21:26:29,488 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 09:26:29" (1/1) ... [2023-02-18 21:26:29,492 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 21:26:29,517 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 21:26:29,741 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i[33822,33835] [2023-02-18 21:26:29,768 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 21:26:29,784 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-02-18 21:26:29,792 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 21:26:29,811 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i[33822,33835] [2023-02-18 21:26:29,824 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 21:26:29,827 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 21:26:29,887 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i[33822,33835] [2023-02-18 21:26:29,918 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 21:26:29,947 INFO L208 MainTranslator]: Completed translation [2023-02-18 21:26:29,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:26:29 WrapperNode [2023-02-18 21:26:29,948 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 21:26:29,949 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 21:26:29,949 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 21:26:29,949 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 21:26:29,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:26:29" (1/1) ... [2023-02-18 21:26:29,965 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:26:29" (1/1) ... [2023-02-18 21:26:29,979 INFO L138 Inliner]: procedures = 235, calls = 75, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 116 [2023-02-18 21:26:29,979 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 21:26:29,980 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 21:26:29,980 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 21:26:29,980 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 21:26:29,986 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:26:29" (1/1) ... [2023-02-18 21:26:29,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:26:29" (1/1) ... [2023-02-18 21:26:29,990 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:26:29" (1/1) ... [2023-02-18 21:26:29,999 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:26:29" (1/1) ... [2023-02-18 21:26:30,009 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:26:29" (1/1) ... [2023-02-18 21:26:30,025 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:26:29" (1/1) ... [2023-02-18 21:26:30,029 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:26:29" (1/1) ... [2023-02-18 21:26:30,034 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:26:29" (1/1) ... [2023-02-18 21:26:30,036 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 21:26:30,040 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 21:26:30,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 21:26:30,040 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 21:26:30,041 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:26:29" (1/1) ... [2023-02-18 21:26:30,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 21:26:30,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 21:26:30,065 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) [2023-02-18 21:26:30,072 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 [2023-02-18 21:26:30,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-02-18 21:26:30,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-02-18 21:26:30,098 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2023-02-18 21:26:30,098 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2023-02-18 21:26:30,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-18 21:26:30,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-02-18 21:26:30,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-02-18 21:26:30,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-02-18 21:26:30,098 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2023-02-18 21:26:30,098 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2023-02-18 21:26:30,099 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2023-02-18 21:26:30,099 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2023-02-18 21:26:30,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-02-18 21:26:30,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-18 21:26:30,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-02-18 21:26:30,099 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2023-02-18 21:26:30,099 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2023-02-18 21:26:30,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 21:26:30,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 21:26:30,210 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 21:26:30,211 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 21:26:30,649 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 21:26:30,654 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 21:26:30,654 INFO L300 CfgBuilder]: Removed 41 assume(true) statements. [2023-02-18 21:26:30,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 09:26:30 BoogieIcfgContainer [2023-02-18 21:26:30,655 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 21:26:30,657 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 21:26:30,657 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 21:26:30,659 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 21:26:30,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 09:26:29" (1/3) ... [2023-02-18 21:26:30,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c6cae3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 09:26:30, skipping insertion in model container [2023-02-18 21:26:30,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:26:29" (2/3) ... [2023-02-18 21:26:30,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c6cae3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 09:26:30, skipping insertion in model container [2023-02-18 21:26:30,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 09:26:30" (3/3) ... [2023-02-18 21:26:30,661 INFO L112 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux-1.i [2023-02-18 21:26:30,671 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 21:26:30,671 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 71 error locations. [2023-02-18 21:26:30,698 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 21:26:30,702 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;@1df72046, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 21:26:30,703 INFO L358 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2023-02-18 21:26:30,706 INFO L276 IsEmpty]: Start isEmpty. Operand has 216 states, 117 states have (on average 2.1623931623931623) internal successors, (253), 206 states have internal predecessors, (253), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-02-18 21:26:30,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-18 21:26:30,710 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:26:30,710 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-18 21:26:30,710 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [val_from_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, val_from_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, failErr0ASSERT_VIOLATIONMEMORY_LEAK (and 68 more)] === [2023-02-18 21:26:30,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:26:30,714 INFO L85 PathProgramCache]: Analyzing trace with hash 378924727, now seen corresponding path program 1 times [2023-02-18 21:26:30,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:26:30,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1253008282] [2023-02-18 21:26:30,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:26:30,721 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 [2023-02-18 21:26:30,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:26:30,723 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) [2023-02-18 21:26:30,724 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 [2023-02-18 21:26:30,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:26:30,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 1 conjunts are in the unsatisfiable core [2023-02-18 21:26:30,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:26:30,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 21:26:30,800 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 21:26:30,800 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:26:30,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1253008282] [2023-02-18 21:26:30,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1253008282] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 21:26:30,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 21:26:30,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 21:26:30,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658177628] [2023-02-18 21:26:30,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 21:26:30,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-18 21:26:30,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:26:30,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-18 21:26:30,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-18 21:26:30,827 INFO L87 Difference]: Start difference. First operand has 216 states, 117 states have (on average 2.1623931623931623) internal successors, (253), 206 states have internal predecessors, (253), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 21:26:30,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:26:30,870 INFO L93 Difference]: Finished difference Result 212 states and 234 transitions. [2023-02-18 21:26:30,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-18 21:26:30,872 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-02-18 21:26:30,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:26:30,881 INFO L225 Difference]: With dead ends: 212 [2023-02-18 21:26:30,881 INFO L226 Difference]: Without dead ends: 210 [2023-02-18 21:26:30,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-18 21:26:30,887 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 21:26:30,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 21:26:30,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2023-02-18 21:26:30,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2023-02-18 21:26:30,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 115 states have (on average 1.7826086956521738) internal successors, (205), 199 states have internal predecessors, (205), 21 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-18 21:26:30,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 232 transitions. [2023-02-18 21:26:30,928 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 232 transitions. Word has length 5 [2023-02-18 21:26:30,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:26:30,928 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 232 transitions. [2023-02-18 21:26:30,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 21:26:30,929 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 232 transitions. [2023-02-18 21:26:30,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-18 21:26:30,929 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:26:30,929 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-18 21:26:30,937 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 [2023-02-18 21:26:31,130 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 [2023-02-18 21:26:31,130 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [val_from_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, val_from_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, failErr0ASSERT_VIOLATIONMEMORY_LEAK (and 68 more)] === [2023-02-18 21:26:31,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:26:31,131 INFO L85 PathProgramCache]: Analyzing trace with hash 378924789, now seen corresponding path program 1 times [2023-02-18 21:26:31,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:26:31,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [87372831] [2023-02-18 21:26:31,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:26:31,132 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 [2023-02-18 21:26:31,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:26:31,136 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) [2023-02-18 21:26:31,137 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 [2023-02-18 21:26:31,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:26:31,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-18 21:26:31,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:26:31,204 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 [2023-02-18 21:26:31,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 21:26:31,207 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 21:26:31,208 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:26:31,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [87372831] [2023-02-18 21:26:31,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [87372831] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 21:26:31,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 21:26:31,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 21:26:31,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369453671] [2023-02-18 21:26:31,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 21:26:31,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 21:26:31,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:26:31,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 21:26:31,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 21:26:31,210 INFO L87 Difference]: Start difference. First operand 210 states and 232 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 21:26:31,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:26:31,389 INFO L93 Difference]: Finished difference Result 229 states and 251 transitions. [2023-02-18 21:26:31,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 21:26:31,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-02-18 21:26:31,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:26:31,391 INFO L225 Difference]: With dead ends: 229 [2023-02-18 21:26:31,391 INFO L226 Difference]: Without dead ends: 229 [2023-02-18 21:26:31,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 21:26:31,392 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 69 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 21:26:31,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 314 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 21:26:31,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2023-02-18 21:26:31,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 207. [2023-02-18 21:26:31,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 115 states have (on average 1.7565217391304349) internal successors, (202), 196 states have internal predecessors, (202), 21 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-18 21:26:31,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 229 transitions. [2023-02-18 21:26:31,406 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 229 transitions. Word has length 5 [2023-02-18 21:26:31,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:26:31,407 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 229 transitions. [2023-02-18 21:26:31,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 21:26:31,407 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 229 transitions. [2023-02-18 21:26:31,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-18 21:26:31,407 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:26:31,408 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-18 21:26:31,416 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 [2023-02-18 21:26:31,614 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 [2023-02-18 21:26:31,614 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [val_from_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, val_from_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, failErr0ASSERT_VIOLATIONMEMORY_LEAK (and 68 more)] === [2023-02-18 21:26:31,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:26:31,615 INFO L85 PathProgramCache]: Analyzing trace with hash 378924790, now seen corresponding path program 1 times [2023-02-18 21:26:31,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:26:31,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [235560905] [2023-02-18 21:26:31,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:26:31,615 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 [2023-02-18 21:26:31,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:26:31,617 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) [2023-02-18 21:26:31,617 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 [2023-02-18 21:26:31,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:26:31,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 21:26:31,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:26:31,676 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 [2023-02-18 21:26:31,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 21:26:31,680 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 21:26:31,681 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:26:31,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [235560905] [2023-02-18 21:26:31,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [235560905] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 21:26:31,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 21:26:31,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 21:26:31,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908567421] [2023-02-18 21:26:31,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 21:26:31,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 21:26:31,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:26:31,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 21:26:31,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 21:26:31,683 INFO L87 Difference]: Start difference. First operand 207 states and 229 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 21:26:31,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:26:31,850 INFO L93 Difference]: Finished difference Result 205 states and 227 transitions. [2023-02-18 21:26:31,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 21:26:31,850 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-02-18 21:26:31,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:26:31,851 INFO L225 Difference]: With dead ends: 205 [2023-02-18 21:26:31,851 INFO L226 Difference]: Without dead ends: 205 [2023-02-18 21:26:31,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 21:26:31,852 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 67 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 21:26:31,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 306 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 21:26:31,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2023-02-18 21:26:31,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 204. [2023-02-18 21:26:31,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 115 states have (on average 1.7304347826086957) internal successors, (199), 193 states have internal predecessors, (199), 21 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-18 21:26:31,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 226 transitions. [2023-02-18 21:26:31,862 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 226 transitions. Word has length 5 [2023-02-18 21:26:31,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:26:31,863 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 226 transitions. [2023-02-18 21:26:31,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 21:26:31,863 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 226 transitions. [2023-02-18 21:26:31,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-18 21:26:31,863 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:26:31,864 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:26:31,872 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 [2023-02-18 21:26:32,069 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 [2023-02-18 21:26:32,070 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting list_addErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [val_from_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, val_from_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, failErr0ASSERT_VIOLATIONMEMORY_LEAK (and 68 more)] === [2023-02-18 21:26:32,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:26:32,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1374843154, now seen corresponding path program 1 times [2023-02-18 21:26:32,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:26:32,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1833368237] [2023-02-18 21:26:32,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:26:32,071 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 [2023-02-18 21:26:32,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:26:32,074 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) [2023-02-18 21:26:32,075 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 [2023-02-18 21:26:32,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:26:32,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-18 21:26:32,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:26:32,165 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:26:32,167 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 [2023-02-18 21:26:32,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 21:26:32,202 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 21:26:32,204 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:26:32,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1833368237] [2023-02-18 21:26:32,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1833368237] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 21:26:32,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 21:26:32,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 21:26:32,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129504265] [2023-02-18 21:26:32,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 21:26:32,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 21:26:32,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:26:32,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 21:26:32,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-18 21:26:32,206 INFO L87 Difference]: Start difference. First operand 204 states and 226 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 21:26:32,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:26:32,519 INFO L93 Difference]: Finished difference Result 241 states and 262 transitions. [2023-02-18 21:26:32,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-18 21:26:32,519 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-02-18 21:26:32,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:26:32,520 INFO L225 Difference]: With dead ends: 241 [2023-02-18 21:26:32,520 INFO L226 Difference]: Without dead ends: 241 [2023-02-18 21:26:32,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-02-18 21:26:32,521 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 269 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-18 21:26:32,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 399 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-18 21:26:32,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2023-02-18 21:26:32,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 218. [2023-02-18 21:26:32,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 129 states have (on average 1.751937984496124) internal successors, (226), 206 states have internal predecessors, (226), 21 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-18 21:26:32,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 253 transitions. [2023-02-18 21:26:32,536 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 253 transitions. Word has length 8 [2023-02-18 21:26:32,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:26:32,536 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 253 transitions. [2023-02-18 21:26:32,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 21:26:32,539 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 253 transitions. [2023-02-18 21:26:32,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-18 21:26:32,540 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:26:32,540 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:26:32,548 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 [2023-02-18 21:26:32,746 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 [2023-02-18 21:26:32,747 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting list_addErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [val_from_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, val_from_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, failErr0ASSERT_VIOLATIONMEMORY_LEAK (and 68 more)] === [2023-02-18 21:26:32,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:26:32,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1374843155, now seen corresponding path program 1 times [2023-02-18 21:26:32,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:26:32,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [601292282] [2023-02-18 21:26:32,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:26:32,748 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 [2023-02-18 21:26:32,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:26:32,749 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) [2023-02-18 21:26:32,751 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 [2023-02-18 21:26:32,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:26:32,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 11 conjunts are in the unsatisfiable core [2023-02-18 21:26:32,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:26:32,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 21:26:32,840 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 [2023-02-18 21:26:32,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 21:26:32,853 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 21:26:32,854 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:26:32,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [601292282] [2023-02-18 21:26:32,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [601292282] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 21:26:32,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 21:26:32,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-18 21:26:32,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037100096] [2023-02-18 21:26:32,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 21:26:32,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-18 21:26:32,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:26:32,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-18 21:26:32,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-02-18 21:26:32,855 INFO L87 Difference]: Start difference. First operand 218 states and 253 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 21:26:33,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:26:33,212 INFO L93 Difference]: Finished difference Result 222 states and 246 transitions. [2023-02-18 21:26:33,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 21:26:33,213 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-02-18 21:26:33,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:26:33,213 INFO L225 Difference]: With dead ends: 222 [2023-02-18 21:26:33,213 INFO L226 Difference]: Without dead ends: 222 [2023-02-18 21:26:33,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-02-18 21:26:33,214 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 267 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-18 21:26:33,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 310 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-18 21:26:33,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2023-02-18 21:26:33,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 210. [2023-02-18 21:26:33,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 125 states have (on average 1.696) internal successors, (212), 198 states have internal predecessors, (212), 21 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-18 21:26:33,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 239 transitions. [2023-02-18 21:26:33,220 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 239 transitions. Word has length 8 [2023-02-18 21:26:33,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:26:33,220 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 239 transitions. [2023-02-18 21:26:33,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 21:26:33,220 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 239 transitions. [2023-02-18 21:26:33,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-18 21:26:33,221 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:26:33,221 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:26:33,230 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 [2023-02-18 21:26:33,428 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 [2023-02-18 21:26:33,428 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting list_addErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [val_from_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, val_from_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, failErr0ASSERT_VIOLATIONMEMORY_LEAK (and 68 more)] === [2023-02-18 21:26:33,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:26:33,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1625645901, now seen corresponding path program 1 times [2023-02-18 21:26:33,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:26:33,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1585778724] [2023-02-18 21:26:33,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:26:33,429 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 [2023-02-18 21:26:33,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:26:33,430 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) [2023-02-18 21:26:33,432 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 [2023-02-18 21:26:33,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:26:33,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 17 conjunts are in the unsatisfiable core [2023-02-18 21:26:33,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:26:33,551 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:26:33,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 26 [2023-02-18 21:26:33,566 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 14 treesize of output 16 [2023-02-18 21:26:33,590 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 [2023-02-18 21:26:33,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 21:26:33,605 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 21:26:33,605 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:26:33,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1585778724] [2023-02-18 21:26:33,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1585778724] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 21:26:33,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 21:26:33,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-02-18 21:26:33,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197504270] [2023-02-18 21:26:33,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 21:26:33,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-02-18 21:26:33,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:26:33,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-02-18 21:26:33,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-02-18 21:26:33,607 INFO L87 Difference]: Start difference. First operand 210 states and 239 transitions. Second operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 21:26:33,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:26:33,945 INFO L93 Difference]: Finished difference Result 231 states and 260 transitions. [2023-02-18 21:26:33,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-18 21:26:33,946 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-02-18 21:26:33,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:26:33,948 INFO L225 Difference]: With dead ends: 231 [2023-02-18 21:26:33,948 INFO L226 Difference]: Without dead ends: 231 [2023-02-18 21:26:33,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2023-02-18 21:26:33,948 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 41 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-18 21:26:33,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 1039 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-18 21:26:33,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2023-02-18 21:26:33,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 224. [2023-02-18 21:26:33,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 137 states have (on average 1.686131386861314) internal successors, (231), 211 states have internal predecessors, (231), 22 states have call successors, (22), 6 states have call predecessors, (22), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-02-18 21:26:33,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 260 transitions. [2023-02-18 21:26:33,954 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 260 transitions. Word has length 10 [2023-02-18 21:26:33,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:26:33,954 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 260 transitions. [2023-02-18 21:26:33,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 21:26:33,954 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 260 transitions. [2023-02-18 21:26:33,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-18 21:26:33,955 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:26:33,955 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:26:33,963 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 (7)] Ended with exit code 0 [2023-02-18 21:26:34,161 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 [2023-02-18 21:26:34,163 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting list_addErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [val_from_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, val_from_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, failErr0ASSERT_VIOLATIONMEMORY_LEAK (and 68 more)] === [2023-02-18 21:26:34,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:26:34,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1625645900, now seen corresponding path program 1 times [2023-02-18 21:26:34,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:26:34,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [486090373] [2023-02-18 21:26:34,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:26:34,164 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 [2023-02-18 21:26:34,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:26:34,165 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) [2023-02-18 21:26:34,167 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 [2023-02-18 21:26:34,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:26:34,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 25 conjunts are in the unsatisfiable core [2023-02-18 21:26:34,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:26:34,247 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:26:34,248 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2023-02-18 21:26:34,263 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 [2023-02-18 21:26:34,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 14 treesize of output 16 [2023-02-18 21:26:34,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 14 treesize of output 16 [2023-02-18 21:26:34,312 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 [2023-02-18 21:26:34,314 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 [2023-02-18 21:26:34,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 21:26:34,329 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 21:26:34,329 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:26:34,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [486090373] [2023-02-18 21:26:34,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [486090373] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 21:26:34,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 21:26:34,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-02-18 21:26:34,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241608848] [2023-02-18 21:26:34,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 21:26:34,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-02-18 21:26:34,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:26:34,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-02-18 21:26:34,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-02-18 21:26:34,331 INFO L87 Difference]: Start difference. First operand 224 states and 260 transitions. Second operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 21:26:34,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:26:34,832 INFO L93 Difference]: Finished difference Result 230 states and 259 transitions. [2023-02-18 21:26:34,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-18 21:26:34,833 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-02-18 21:26:34,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:26:34,833 INFO L225 Difference]: With dead ends: 230 [2023-02-18 21:26:34,834 INFO L226 Difference]: Without dead ends: 230 [2023-02-18 21:26:34,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2023-02-18 21:26:34,834 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 51 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 971 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-02-18 21:26:34,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 971 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-02-18 21:26:34,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2023-02-18 21:26:34,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 224. [2023-02-18 21:26:34,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 137 states have (on average 1.6788321167883211) internal successors, (230), 211 states have internal predecessors, (230), 22 states have call successors, (22), 6 states have call predecessors, (22), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-02-18 21:26:34,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 259 transitions. [2023-02-18 21:26:34,839 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 259 transitions. Word has length 10 [2023-02-18 21:26:34,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:26:34,839 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 259 transitions. [2023-02-18 21:26:34,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 21:26:34,839 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 259 transitions. [2023-02-18 21:26:34,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-18 21:26:34,840 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:26:34,840 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:26:34,850 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 [2023-02-18 21:26:35,040 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 [2023-02-18 21:26:35,041 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting list_addErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [val_from_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, val_from_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, failErr0ASSERT_VIOLATIONMEMORY_LEAK (and 68 more)] === [2023-02-18 21:26:35,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:26:35,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1144584946, now seen corresponding path program 1 times [2023-02-18 21:26:35,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:26:35,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [404744003] [2023-02-18 21:26:35,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:26:35,042 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 [2023-02-18 21:26:35,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:26:35,043 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) [2023-02-18 21:26:35,043 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 [2023-02-18 21:26:35,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:26:35,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-18 21:26:35,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:26:35,124 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 [2023-02-18 21:26:35,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 21:26:35,136 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 21:26:35,136 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:26:35,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [404744003] [2023-02-18 21:26:35,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [404744003] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 21:26:35,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 21:26:35,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-18 21:26:35,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012705897] [2023-02-18 21:26:35,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 21:26:35,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-18 21:26:35,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:26:35,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-18 21:26:35,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-02-18 21:26:35,137 INFO L87 Difference]: Start difference. First operand 224 states and 259 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 21:26:35,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:26:35,447 INFO L93 Difference]: Finished difference Result 245 states and 270 transitions. [2023-02-18 21:26:35,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-18 21:26:35,448 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-02-18 21:26:35,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:26:35,448 INFO L225 Difference]: With dead ends: 245 [2023-02-18 21:26:35,449 INFO L226 Difference]: Without dead ends: 245 [2023-02-18 21:26:35,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-02-18 21:26:35,449 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 105 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-18 21:26:35,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 703 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-18 21:26:35,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2023-02-18 21:26:35,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 223. [2023-02-18 21:26:35,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 137 states have (on average 1.6423357664233578) internal successors, (225), 210 states have internal predecessors, (225), 22 states have call successors, (22), 6 states have call predecessors, (22), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-02-18 21:26:35,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 254 transitions. [2023-02-18 21:26:35,454 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 254 transitions. Word has length 11 [2023-02-18 21:26:35,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:26:35,454 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 254 transitions. [2023-02-18 21:26:35,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 21:26:35,454 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 254 transitions. [2023-02-18 21:26:35,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-18 21:26:35,455 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:26:35,455 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:26:35,463 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 (9)] Ended with exit code 0 [2023-02-18 21:26:35,661 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 [2023-02-18 21:26:35,661 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting list_addErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [val_from_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, val_from_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, failErr0ASSERT_VIOLATIONMEMORY_LEAK (and 68 more)] === [2023-02-18 21:26:35,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:26:35,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1144584947, now seen corresponding path program 1 times [2023-02-18 21:26:35,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:26:35,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [52605571] [2023-02-18 21:26:35,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:26:35,662 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 [2023-02-18 21:26:35,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:26:35,663 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) [2023-02-18 21:26:35,663 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 [2023-02-18 21:26:35,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:26:35,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-18 21:26:35,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:26:35,725 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 [2023-02-18 21:26:35,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 21:26:35,740 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 21:26:35,740 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:26:35,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [52605571] [2023-02-18 21:26:35,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [52605571] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 21:26:35,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 21:26:35,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-18 21:26:35,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587787242] [2023-02-18 21:26:35,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 21:26:35,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-18 21:26:35,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:26:35,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-18 21:26:35,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-02-18 21:26:35,742 INFO L87 Difference]: Start difference. First operand 223 states and 254 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 21:26:36,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:26:36,107 INFO L93 Difference]: Finished difference Result 227 states and 250 transitions. [2023-02-18 21:26:36,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 21:26:36,108 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-02-18 21:26:36,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:26:36,109 INFO L225 Difference]: With dead ends: 227 [2023-02-18 21:26:36,109 INFO L226 Difference]: Without dead ends: 227 [2023-02-18 21:26:36,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-02-18 21:26:36,110 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 94 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 719 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-18 21:26:36,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 719 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-18 21:26:36,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2023-02-18 21:26:36,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 223. [2023-02-18 21:26:36,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 137 states have (on average 1.6131386861313868) internal successors, (221), 210 states have internal predecessors, (221), 22 states have call successors, (22), 6 states have call predecessors, (22), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-02-18 21:26:36,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 250 transitions. [2023-02-18 21:26:36,114 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 250 transitions. Word has length 11 [2023-02-18 21:26:36,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:26:36,114 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 250 transitions. [2023-02-18 21:26:36,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 21:26:36,115 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 250 transitions. [2023-02-18 21:26:36,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-02-18 21:26:36,115 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:26:36,115 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:26:36,128 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 [2023-02-18 21:26:36,321 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 [2023-02-18 21:26:36,321 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting list_addErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [val_from_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, val_from_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, failErr0ASSERT_VIOLATIONMEMORY_LEAK (and 68 more)] === [2023-02-18 21:26:36,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:26:36,322 INFO L85 PathProgramCache]: Analyzing trace with hash 434515829, now seen corresponding path program 1 times [2023-02-18 21:26:36,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:26:36,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1260124275] [2023-02-18 21:26:36,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:26:36,322 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 [2023-02-18 21:26:36,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:26:36,323 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) [2023-02-18 21:26:36,355 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 [2023-02-18 21:26:36,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:26:36,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 21:26:36,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:26:36,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 21:26:36,397 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 21:26:36,397 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:26:36,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1260124275] [2023-02-18 21:26:36,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1260124275] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 21:26:36,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 21:26:36,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 21:26:36,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708114364] [2023-02-18 21:26:36,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 21:26:36,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 21:26:36,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:26:36,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 21:26:36,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 21:26:36,398 INFO L87 Difference]: Start difference. First operand 223 states and 250 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 21:26:36,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:26:36,560 INFO L93 Difference]: Finished difference Result 222 states and 247 transitions. [2023-02-18 21:26:36,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 21:26:36,561 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-02-18 21:26:36,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:26:36,562 INFO L225 Difference]: With dead ends: 222 [2023-02-18 21:26:36,562 INFO L226 Difference]: Without dead ends: 222 [2023-02-18 21:26:36,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-18 21:26:36,562 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 22 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 21:26:36,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 499 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 21:26:36,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2023-02-18 21:26:36,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2023-02-18 21:26:36,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 137 states have (on average 1.5912408759124088) internal successors, (218), 209 states have internal predecessors, (218), 22 states have call successors, (22), 6 states have call predecessors, (22), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-02-18 21:26:36,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 247 transitions. [2023-02-18 21:26:36,567 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 247 transitions. Word has length 13 [2023-02-18 21:26:36,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:26:36,567 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 247 transitions. [2023-02-18 21:26:36,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 21:26:36,568 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 247 transitions. [2023-02-18 21:26:36,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-02-18 21:26:36,568 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:26:36,568 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:26:36,576 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 (11)] Ended with exit code 0 [2023-02-18 21:26:36,774 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 [2023-02-18 21:26:36,775 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting list_addErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [val_from_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, val_from_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, failErr0ASSERT_VIOLATIONMEMORY_LEAK (and 68 more)] === [2023-02-18 21:26:36,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:26:36,775 INFO L85 PathProgramCache]: Analyzing trace with hash 434515830, now seen corresponding path program 1 times [2023-02-18 21:26:36,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:26:36,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [12601435] [2023-02-18 21:26:36,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:26:36,776 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 [2023-02-18 21:26:36,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:26:36,776 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) [2023-02-18 21:26:36,777 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 [2023-02-18 21:26:36,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:26:36,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-18 21:26:36,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:26:36,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 21:26:36,864 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 21:26:36,865 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:26:36,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [12601435] [2023-02-18 21:26:36,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [12601435] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 21:26:36,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 21:26:36,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-18 21:26:36,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372162177] [2023-02-18 21:26:36,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 21:26:36,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-18 21:26:36,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:26:36,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-18 21:26:36,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-02-18 21:26:36,866 INFO L87 Difference]: Start difference. First operand 222 states and 247 transitions. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 21:26:37,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:26:37,185 INFO L93 Difference]: Finished difference Result 224 states and 245 transitions. [2023-02-18 21:26:37,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-18 21:26:37,186 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-02-18 21:26:37,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:26:37,187 INFO L225 Difference]: With dead ends: 224 [2023-02-18 21:26:37,187 INFO L226 Difference]: Without dead ends: 224 [2023-02-18 21:26:37,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-02-18 21:26:37,187 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 249 mSDsluCounter, 714 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 917 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-18 21:26:37,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 917 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-18 21:26:37,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2023-02-18 21:26:37,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 222. [2023-02-18 21:26:37,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 137 states have (on average 1.5766423357664234) internal successors, (216), 209 states have internal predecessors, (216), 22 states have call successors, (22), 6 states have call predecessors, (22), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-02-18 21:26:37,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 245 transitions. [2023-02-18 21:26:37,192 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 245 transitions. Word has length 13 [2023-02-18 21:26:37,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:26:37,192 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 245 transitions. [2023-02-18 21:26:37,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 21:26:37,192 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 245 transitions. [2023-02-18 21:26:37,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-02-18 21:26:37,193 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:26:37,193 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] [2023-02-18 21:26:37,205 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 (12)] Forceful destruction successful, exit code 0 [2023-02-18 21:26:37,400 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 [2023-02-18 21:26:37,400 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [val_from_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, val_from_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, failErr0ASSERT_VIOLATIONMEMORY_LEAK (and 68 more)] === [2023-02-18 21:26:37,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:26:37,401 INFO L85 PathProgramCache]: Analyzing trace with hash 853908818, now seen corresponding path program 1 times [2023-02-18 21:26:37,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:26:37,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1425818690] [2023-02-18 21:26:37,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:26:37,401 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 [2023-02-18 21:26:37,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:26:37,402 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) [2023-02-18 21:26:37,403 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 [2023-02-18 21:26:37,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:26:37,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 21:26:37,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:26:37,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 21:26:37,497 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 21:26:37,497 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:26:37,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1425818690] [2023-02-18 21:26:37,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1425818690] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 21:26:37,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 21:26:37,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-18 21:26:37,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27309894] [2023-02-18 21:26:37,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 21:26:37,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 21:26:37,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:26:37,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 21:26:37,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-18 21:26:37,499 INFO L87 Difference]: Start difference. First operand 222 states and 245 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 3 states have internal predecessors, (23), 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) [2023-02-18 21:26:37,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:26:37,592 INFO L93 Difference]: Finished difference Result 221 states and 243 transitions. [2023-02-18 21:26:37,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-18 21:26:37,593 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 3 states have internal predecessors, (23), 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 27 [2023-02-18 21:26:37,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:26:37,594 INFO L225 Difference]: With dead ends: 221 [2023-02-18 21:26:37,594 INFO L226 Difference]: Without dead ends: 221 [2023-02-18 21:26:37,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-02-18 21:26:37,594 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 297 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 21:26:37,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 453 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 21:26:37,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2023-02-18 21:26:37,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2023-02-18 21:26:37,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 137 states have (on average 1.5693430656934306) internal successors, (215), 208 states have internal predecessors, (215), 21 states have call successors, (21), 6 states have call predecessors, (21), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-02-18 21:26:37,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 243 transitions. [2023-02-18 21:26:37,598 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 243 transitions. Word has length 27 [2023-02-18 21:26:37,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:26:37,599 INFO L495 AbstractCegarLoop]: Abstraction has 221 states and 243 transitions. [2023-02-18 21:26:37,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 3 states have internal predecessors, (23), 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) [2023-02-18 21:26:37,599 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 243 transitions. [2023-02-18 21:26:37,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-02-18 21:26:37,599 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:26:37,599 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] [2023-02-18 21:26:37,612 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 (13)] Forceful destruction successful, exit code 0 [2023-02-18 21:26:37,799 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 [2023-02-18 21:26:37,800 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting inspectErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [val_from_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, val_from_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, failErr0ASSERT_VIOLATIONMEMORY_LEAK (and 68 more)] === [2023-02-18 21:26:37,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:26:37,800 INFO L85 PathProgramCache]: Analyzing trace with hash 853896473, now seen corresponding path program 1 times [2023-02-18 21:26:37,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:26:37,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1841681909] [2023-02-18 21:26:37,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:26:37,801 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 [2023-02-18 21:26:37,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:26:37,802 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) [2023-02-18 21:26:37,802 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 [2023-02-18 21:26:37,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:26:37,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-18 21:26:37,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:26:37,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 21:26:37,923 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 21:26:37,923 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:26:37,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1841681909] [2023-02-18 21:26:37,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1841681909] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 21:26:37,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 21:26:37,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-18 21:26:37,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418293430] [2023-02-18 21:26:37,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 21:26:37,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-18 21:26:37,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:26:37,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-18 21:26:37,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-02-18 21:26:37,925 INFO L87 Difference]: Start difference. First operand 221 states and 243 transitions. Second operand has 7 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 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) [2023-02-18 21:26:38,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:26:38,328 INFO L93 Difference]: Finished difference Result 216 states and 238 transitions. [2023-02-18 21:26:38,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-18 21:26:38,329 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 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 27 [2023-02-18 21:26:38,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:26:38,330 INFO L225 Difference]: With dead ends: 216 [2023-02-18 21:26:38,330 INFO L226 Difference]: Without dead ends: 216 [2023-02-18 21:26:38,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-02-18 21:26:38,330 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 381 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-18 21:26:38,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 424 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-18 21:26:38,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2023-02-18 21:26:38,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2023-02-18 21:26:38,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 137 states have (on average 1.532846715328467) internal successors, (210), 203 states have internal predecessors, (210), 21 states have call successors, (21), 6 states have call predecessors, (21), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-02-18 21:26:38,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 238 transitions. [2023-02-18 21:26:38,334 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 238 transitions. Word has length 27 [2023-02-18 21:26:38,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:26:38,334 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 238 transitions. [2023-02-18 21:26:38,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 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) [2023-02-18 21:26:38,334 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 238 transitions. [2023-02-18 21:26:38,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-02-18 21:26:38,335 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:26:38,335 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] [2023-02-18 21:26:38,344 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 [2023-02-18 21:26:38,542 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 [2023-02-18 21:26:38,542 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting inspectErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [val_from_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, val_from_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, failErr0ASSERT_VIOLATIONMEMORY_LEAK (and 68 more)] === [2023-02-18 21:26:38,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:26:38,542 INFO L85 PathProgramCache]: Analyzing trace with hash 853896474, now seen corresponding path program 1 times [2023-02-18 21:26:38,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:26:38,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [272898669] [2023-02-18 21:26:38,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:26:38,543 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 [2023-02-18 21:26:38,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:26:38,544 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) [2023-02-18 21:26:38,546 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 [2023-02-18 21:26:38,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:26:38,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 11 conjunts are in the unsatisfiable core [2023-02-18 21:26:38,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:26:38,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 21:26:38,679 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 21:26:38,680 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:26:38,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [272898669] [2023-02-18 21:26:38,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [272898669] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 21:26:38,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 21:26:38,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-18 21:26:38,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748215330] [2023-02-18 21:26:38,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 21:26:38,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-18 21:26:38,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:26:38,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-18 21:26:38,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-02-18 21:26:38,681 INFO L87 Difference]: Start difference. First operand 216 states and 238 transitions. Second operand has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 states have internal predecessors, (24), 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) [2023-02-18 21:26:39,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:26:39,278 INFO L93 Difference]: Finished difference Result 215 states and 237 transitions. [2023-02-18 21:26:39,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-18 21:26:39,278 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 states have internal predecessors, (24), 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 27 [2023-02-18 21:26:39,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:26:39,279 INFO L225 Difference]: With dead ends: 215 [2023-02-18 21:26:39,279 INFO L226 Difference]: Without dead ends: 215 [2023-02-18 21:26:39,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2023-02-18 21:26:39,280 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 476 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-02-18 21:26:39,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 480 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-02-18 21:26:39,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2023-02-18 21:26:39,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2023-02-18 21:26:39,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 137 states have (on average 1.5255474452554745) internal successors, (209), 202 states have internal predecessors, (209), 21 states have call successors, (21), 6 states have call predecessors, (21), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-02-18 21:26:39,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 237 transitions. [2023-02-18 21:26:39,284 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 237 transitions. Word has length 27 [2023-02-18 21:26:39,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:26:39,284 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 237 transitions. [2023-02-18 21:26:39,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 states have internal predecessors, (24), 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) [2023-02-18 21:26:39,284 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 237 transitions. [2023-02-18 21:26:39,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-02-18 21:26:39,285 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:26:39,285 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] [2023-02-18 21:26:39,297 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 [2023-02-18 21:26:39,492 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 [2023-02-18 21:26:39,492 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [val_from_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, val_from_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, failErr0ASSERT_VIOLATIONMEMORY_LEAK (and 68 more)] === [2023-02-18 21:26:39,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:26:39,493 INFO L85 PathProgramCache]: Analyzing trace with hash -661448180, now seen corresponding path program 1 times [2023-02-18 21:26:39,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:26:39,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1898355184] [2023-02-18 21:26:39,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:26:39,493 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 [2023-02-18 21:26:39,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:26:39,494 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) [2023-02-18 21:26:39,495 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 [2023-02-18 21:26:39,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:26:39,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 26 conjunts are in the unsatisfiable core [2023-02-18 21:26:39,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:26:39,627 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:26:39,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2023-02-18 21:26:39,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-02-18 21:26:39,665 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 14 treesize of output 16 [2023-02-18 21:26:39,674 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:26:39,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 36 [2023-02-18 21:26:39,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 20 [2023-02-18 21:26:39,715 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:26:39,715 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 35 [2023-02-18 21:26:39,720 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-02-18 21:26:39,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 21:26:39,731 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 21:26:39,731 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:26:39,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1898355184] [2023-02-18 21:26:39,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1898355184] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 21:26:39,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 21:26:39,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-02-18 21:26:39,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524233222] [2023-02-18 21:26:39,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 21:26:39,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-02-18 21:26:39,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:26:39,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-02-18 21:26:39,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-02-18 21:26:39,733 INFO L87 Difference]: Start difference. First operand 215 states and 237 transitions. Second operand has 13 states, 13 states have (on average 2.0) internal successors, (26), 10 states have internal predecessors, (26), 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) [2023-02-18 21:26:40,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:26:40,853 INFO L93 Difference]: Finished difference Result 360 states and 397 transitions. [2023-02-18 21:26:40,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-02-18 21:26:40,854 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 10 states have internal predecessors, (26), 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 30 [2023-02-18 21:26:40,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:26:40,855 INFO L225 Difference]: With dead ends: 360 [2023-02-18 21:26:40,855 INFO L226 Difference]: Without dead ends: 360 [2023-02-18 21:26:40,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=127, Invalid=473, Unknown=0, NotChecked=0, Total=600 [2023-02-18 21:26:40,856 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 991 mSDsluCounter, 856 mSDsCounter, 0 mSdLazyCounter, 1021 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 991 SdHoareTripleChecker+Invalid, 1134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-02-18 21:26:40,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [991 Valid, 991 Invalid, 1134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1021 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-02-18 21:26:40,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2023-02-18 21:26:40,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 294. [2023-02-18 21:26:40,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 211 states have (on average 1.5545023696682465) internal successors, (328), 277 states have internal predecessors, (328), 24 states have call successors, (24), 8 states have call predecessors, (24), 7 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2023-02-18 21:26:40,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 362 transitions. [2023-02-18 21:26:40,862 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 362 transitions. Word has length 30 [2023-02-18 21:26:40,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:26:40,862 INFO L495 AbstractCegarLoop]: Abstraction has 294 states and 362 transitions. [2023-02-18 21:26:40,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 10 states have internal predecessors, (26), 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) [2023-02-18 21:26:40,863 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 362 transitions. [2023-02-18 21:26:40,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-02-18 21:26:40,863 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:26:40,863 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:26:40,873 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 (16)] Ended with exit code 0 [2023-02-18 21:26:41,071 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 [2023-02-18 21:26:41,071 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting list_addErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [val_from_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, val_from_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, failErr0ASSERT_VIOLATIONMEMORY_LEAK (and 68 more)] === [2023-02-18 21:26:41,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:26:41,072 INFO L85 PathProgramCache]: Analyzing trace with hash -662300209, now seen corresponding path program 1 times [2023-02-18 21:26:41,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:26:41,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [989894719] [2023-02-18 21:26:41,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:26:41,072 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 [2023-02-18 21:26:41,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:26:41,073 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) [2023-02-18 21:26:41,075 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 [2023-02-18 21:26:41,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:26:41,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 37 conjunts are in the unsatisfiable core [2023-02-18 21:26:41,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:26:41,255 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:26:41,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2023-02-18 21:26:41,334 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-02-18 21:26:41,378 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 14 treesize of output 16 [2023-02-18 21:26:41,386 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:26:41,386 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 66 [2023-02-18 21:26:41,390 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 44 [2023-02-18 21:26:41,430 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:26:41,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 19 case distinctions, treesize of input 147 treesize of output 314 [2023-02-18 21:26:46,651 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:26:46,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 18084 treesize of output 16176 [2023-02-18 21:29:28,242 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:29:31,037 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 778 select indices, 778 select index equivalence classes, 0 disjoint index pairs (out of 302253 index pairs), introduced 779 new quantified variables, introduced 302253 case distinctions, treesize of input 117846 treesize of output 2519893