./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/locks/test_locks_13.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 26d01a9c 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/locks/test_locks_13.c -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 8fd6142dd23f608c3bc9ae24389b4aee583128e9e6b549483298584de0c08ecd --- Real Ultimate output --- This is Ultimate 0.2.2-?-26d01a9 [2023-02-17 03:32:47,552 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-17 03:32:47,554 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-17 03:32:47,577 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-17 03:32:47,578 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-17 03:32:47,580 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-17 03:32:47,582 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-17 03:32:47,585 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-17 03:32:47,586 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-17 03:32:47,591 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-17 03:32:47,592 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-17 03:32:47,593 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-17 03:32:47,593 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-17 03:32:47,595 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-17 03:32:47,598 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-17 03:32:47,599 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-17 03:32:47,600 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-17 03:32:47,605 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-17 03:32:47,606 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-17 03:32:47,607 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-17 03:32:47,610 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-17 03:32:47,611 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-17 03:32:47,612 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-17 03:32:47,613 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-17 03:32:47,614 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-17 03:32:47,615 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-17 03:32:47,616 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-17 03:32:47,617 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-17 03:32:47,618 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-17 03:32:47,619 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-17 03:32:47,619 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-17 03:32:47,619 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-17 03:32:47,625 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-17 03:32:47,626 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-17 03:32:47,626 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-17 03:32:47,627 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-17 03:32:47,627 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-17 03:32:47,627 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-17 03:32:47,627 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-17 03:32:47,628 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-17 03:32:47,629 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-17 03:32:47,630 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-02-17 03:32:47,656 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-17 03:32:47,657 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-17 03:32:47,657 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-17 03:32:47,657 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-17 03:32:47,657 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-17 03:32:47,658 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-17 03:32:47,658 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-17 03:32:47,658 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-17 03:32:47,658 INFO L138 SettingsManager]: * Use SBE=true [2023-02-17 03:32:47,658 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-17 03:32:47,659 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-17 03:32:47,659 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-17 03:32:47,659 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-17 03:32:47,659 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-17 03:32:47,659 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-17 03:32:47,659 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-02-17 03:32:47,659 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-02-17 03:32:47,660 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-02-17 03:32:47,660 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-17 03:32:47,660 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-17 03:32:47,660 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-17 03:32:47,660 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-17 03:32:47,660 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-17 03:32:47,660 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-17 03:32:47,661 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-17 03:32:47,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 03:32:47,661 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-17 03:32:47,661 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-17 03:32:47,661 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-17 03:32:47,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-17 03:32:47,662 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-17 03:32:47,662 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-17 03:32:47,662 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-17 03:32:47,662 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-17 03:32:47,662 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fd6142dd23f608c3bc9ae24389b4aee583128e9e6b549483298584de0c08ecd [2023-02-17 03:32:47,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-17 03:32:47,859 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-17 03:32:47,861 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-17 03:32:47,862 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-17 03:32:47,862 INFO L275 PluginConnector]: CDTParser initialized [2023-02-17 03:32:47,863 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/locks/test_locks_13.c [2023-02-17 03:32:48,847 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-17 03:32:48,972 INFO L351 CDTParser]: Found 1 translation units. [2023-02-17 03:32:48,973 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_13.c [2023-02-17 03:32:48,977 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2dda0743/40e775e14e44405193848f7b0e2739ce/FLAG7bf478d87 [2023-02-17 03:32:48,988 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2dda0743/40e775e14e44405193848f7b0e2739ce [2023-02-17 03:32:48,990 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-17 03:32:48,991 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-17 03:32:48,992 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-17 03:32:48,993 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-17 03:32:48,995 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-17 03:32:48,996 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 03:32:48" (1/1) ... [2023-02-17 03:32:48,998 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5919e2ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 03:32:48, skipping insertion in model container [2023-02-17 03:32:48,998 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 03:32:48" (1/1) ... [2023-02-17 03:32:49,003 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-17 03:32:49,019 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-17 03:32:49,121 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/locks/test_locks_13.c[4936,4949] [2023-02-17 03:32:49,124 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 03:32:49,130 INFO L203 MainTranslator]: Completed pre-run [2023-02-17 03:32:49,146 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/locks/test_locks_13.c[4936,4949] [2023-02-17 03:32:49,147 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 03:32:49,155 INFO L208 MainTranslator]: Completed translation [2023-02-17 03:32:49,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 03:32:49 WrapperNode [2023-02-17 03:32:49,156 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-17 03:32:49,157 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-17 03:32:49,157 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-17 03:32:49,157 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-17 03:32:49,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 03:32:49" (1/1) ... [2023-02-17 03:32:49,166 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 03:32:49" (1/1) ... [2023-02-17 03:32:49,187 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 171 [2023-02-17 03:32:49,187 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-17 03:32:49,188 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-17 03:32:49,188 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-17 03:32:49,188 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-17 03:32:49,204 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 03:32:49" (1/1) ... [2023-02-17 03:32:49,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 03:32:49" (1/1) ... [2023-02-17 03:32:49,206 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 03:32:49" (1/1) ... [2023-02-17 03:32:49,207 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 03:32:49" (1/1) ... [2023-02-17 03:32:49,210 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 03:32:49" (1/1) ... [2023-02-17 03:32:49,214 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 03:32:49" (1/1) ... [2023-02-17 03:32:49,215 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 03:32:49" (1/1) ... [2023-02-17 03:32:49,215 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 03:32:49" (1/1) ... [2023-02-17 03:32:49,217 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-17 03:32:49,217 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-17 03:32:49,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-17 03:32:49,218 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-17 03:32:49,218 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 03:32:49" (1/1) ... [2023-02-17 03:32:49,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 03:32:49,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 03:32:49,248 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-17 03:32:49,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-17 03:32:49,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-17 03:32:49,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-17 03:32:49,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-17 03:32:49,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-17 03:32:49,347 INFO L235 CfgBuilder]: Building ICFG [2023-02-17 03:32:49,348 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-17 03:32:49,514 INFO L276 CfgBuilder]: Performing block encoding [2023-02-17 03:32:49,519 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-17 03:32:49,519 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-17 03:32:49,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 03:32:49 BoogieIcfgContainer [2023-02-17 03:32:49,521 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-17 03:32:49,522 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-17 03:32:49,522 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-17 03:32:49,524 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-17 03:32:49,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.02 03:32:48" (1/3) ... [2023-02-17 03:32:49,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33f8da1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 03:32:49, skipping insertion in model container [2023-02-17 03:32:49,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 03:32:49" (2/3) ... [2023-02-17 03:32:49,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33f8da1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 03:32:49, skipping insertion in model container [2023-02-17 03:32:49,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 03:32:49" (3/3) ... [2023-02-17 03:32:49,526 INFO L112 eAbstractionObserver]: Analyzing ICFG test_locks_13.c [2023-02-17 03:32:49,538 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-17 03:32:49,538 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-02-17 03:32:49,573 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-17 03:32:49,578 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;@474c3812, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-17 03:32:49,578 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-02-17 03:32:49,581 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 47 states have (on average 1.9361702127659575) internal successors, (91), 49 states have internal predecessors, (91), 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) [2023-02-17 03:32:49,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-17 03:32:49,585 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:32:49,586 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-17 03:32:49,586 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 03:32:49,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:32:49,590 INFO L85 PathProgramCache]: Analyzing trace with hash 28705099, now seen corresponding path program 1 times [2023-02-17 03:32:49,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:32:49,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682768561] [2023-02-17 03:32:49,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:32:49,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:32:49,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:32:49,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:32:49,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:32:49,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682768561] [2023-02-17 03:32:49,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682768561] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:32:49,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:32:49,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-17 03:32:49,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115164791] [2023-02-17 03:32:49,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:32:49,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-17 03:32:49,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:32:49,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-17 03:32:49,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-17 03:32:49,747 INFO L87 Difference]: Start difference. First operand has 50 states, 47 states have (on average 1.9361702127659575) internal successors, (91), 49 states have internal predecessors, (91), 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) 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) [2023-02-17 03:32:49,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:32:49,759 INFO L93 Difference]: Finished difference Result 50 states and 88 transitions. [2023-02-17 03:32:49,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-17 03:32:49,761 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 [2023-02-17 03:32:49,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:32:49,780 INFO L225 Difference]: With dead ends: 50 [2023-02-17 03:32:49,781 INFO L226 Difference]: Without dead ends: 48 [2023-02-17 03:32:49,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-17 03:32:49,784 INFO L413 NwaCegarLoop]: 88 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, 88 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 [2023-02-17 03:32:49,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:32:49,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-02-17 03:32:49,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-02-17 03:32:49,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 46 states have (on average 1.8695652173913044) internal successors, (86), 47 states have internal predecessors, (86), 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) [2023-02-17 03:32:49,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 86 transitions. [2023-02-17 03:32:49,810 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 86 transitions. Word has length 5 [2023-02-17 03:32:49,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:32:49,810 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 86 transitions. [2023-02-17 03:32:49,810 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) [2023-02-17 03:32:49,810 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 86 transitions. [2023-02-17 03:32:49,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-17 03:32:49,811 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:32:49,811 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-17 03:32:49,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-17 03:32:49,812 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 03:32:49,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:32:49,814 INFO L85 PathProgramCache]: Analyzing trace with hash 889699595, now seen corresponding path program 1 times [2023-02-17 03:32:49,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:32:49,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321428022] [2023-02-17 03:32:49,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:32:49,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:32:49,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:32:49,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:32:49,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:32:49,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321428022] [2023-02-17 03:32:49,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321428022] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:32:49,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:32:49,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-17 03:32:49,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442563540] [2023-02-17 03:32:49,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:32:49,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 03:32:49,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:32:49,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 03:32:49,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:49,903 INFO L87 Difference]: Start difference. First operand 48 states and 86 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-02-17 03:32:49,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:32:49,918 INFO L93 Difference]: Finished difference Result 47 states and 85 transitions. [2023-02-17 03:32:49,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 03:32:49,919 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2023-02-17 03:32:49,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:32:49,919 INFO L225 Difference]: With dead ends: 47 [2023-02-17 03:32:49,919 INFO L226 Difference]: Without dead ends: 45 [2023-02-17 03:32:49,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:49,921 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 80 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:32:49,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 85 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:32:49,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-02-17 03:32:49,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2023-02-17 03:32:49,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.8863636363636365) internal successors, (83), 44 states have internal predecessors, (83), 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) [2023-02-17 03:32:49,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 83 transitions. [2023-02-17 03:32:49,930 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 83 transitions. Word has length 6 [2023-02-17 03:32:49,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:32:49,930 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 83 transitions. [2023-02-17 03:32:49,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-02-17 03:32:49,931 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 83 transitions. [2023-02-17 03:32:49,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-02-17 03:32:49,932 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:32:49,932 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] [2023-02-17 03:32:49,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-17 03:32:49,933 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 03:32:49,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:32:49,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1359894467, now seen corresponding path program 1 times [2023-02-17 03:32:49,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:32:49,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499162339] [2023-02-17 03:32:49,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:32:49,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:32:49,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:32:50,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:32:50,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:32:50,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499162339] [2023-02-17 03:32:50,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499162339] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:32:50,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:32:50,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 03:32:50,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981162172] [2023-02-17 03:32:50,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:32:50,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 03:32:50,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:32:50,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 03:32:50,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:50,007 INFO L87 Difference]: Start difference. First operand 45 states and 83 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2023-02-17 03:32:50,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:32:50,034 INFO L93 Difference]: Finished difference Result 87 states and 161 transitions. [2023-02-17 03:32:50,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 03:32:50,035 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 20 [2023-02-17 03:32:50,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:32:50,036 INFO L225 Difference]: With dead ends: 87 [2023-02-17 03:32:50,036 INFO L226 Difference]: Without dead ends: 87 [2023-02-17 03:32:50,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:50,037 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 63 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:32:50,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 163 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:32:50,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-02-17 03:32:50,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 59. [2023-02-17 03:32:50,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 58 states have (on average 1.896551724137931) internal successors, (110), 58 states have internal predecessors, (110), 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) [2023-02-17 03:32:50,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 110 transitions. [2023-02-17 03:32:50,059 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 110 transitions. Word has length 20 [2023-02-17 03:32:50,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:32:50,059 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 110 transitions. [2023-02-17 03:32:50,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2023-02-17 03:32:50,060 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 110 transitions. [2023-02-17 03:32:50,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-02-17 03:32:50,060 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:32:50,060 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] [2023-02-17 03:32:50,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-17 03:32:50,061 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 03:32:50,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:32:50,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1914004475, now seen corresponding path program 1 times [2023-02-17 03:32:50,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:32:50,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882166881] [2023-02-17 03:32:50,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:32:50,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:32:50,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:32:50,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:32:50,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:32:50,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882166881] [2023-02-17 03:32:50,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882166881] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:32:50,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:32:50,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 03:32:50,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945690807] [2023-02-17 03:32:50,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:32:50,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 03:32:50,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:32:50,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 03:32:50,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:50,129 INFO L87 Difference]: Start difference. First operand 59 states and 110 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2023-02-17 03:32:50,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:32:50,148 INFO L93 Difference]: Finished difference Result 87 states and 159 transitions. [2023-02-17 03:32:50,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 03:32:50,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 20 [2023-02-17 03:32:50,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:32:50,150 INFO L225 Difference]: With dead ends: 87 [2023-02-17 03:32:50,150 INFO L226 Difference]: Without dead ends: 87 [2023-02-17 03:32:50,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:50,151 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 63 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:32:50,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 185 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:32:50,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-02-17 03:32:50,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2023-02-17 03:32:50,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 84 states have (on average 1.880952380952381) internal successors, (158), 84 states have internal predecessors, (158), 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) [2023-02-17 03:32:50,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 158 transitions. [2023-02-17 03:32:50,159 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 158 transitions. Word has length 20 [2023-02-17 03:32:50,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:32:50,159 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 158 transitions. [2023-02-17 03:32:50,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2023-02-17 03:32:50,160 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 158 transitions. [2023-02-17 03:32:50,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-17 03:32:50,161 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:32:50,161 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] [2023-02-17 03:32:50,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-17 03:32:50,162 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 03:32:50,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:32:50,162 INFO L85 PathProgramCache]: Analyzing trace with hash 793156859, now seen corresponding path program 1 times [2023-02-17 03:32:50,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:32:50,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944838295] [2023-02-17 03:32:50,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:32:50,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:32:50,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:32:50,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:32:50,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:32:50,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944838295] [2023-02-17 03:32:50,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944838295] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:32:50,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:32:50,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 03:32:50,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750342882] [2023-02-17 03:32:50,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:32:50,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 03:32:50,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:32:50,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 03:32:50,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:50,202 INFO L87 Difference]: Start difference. First operand 85 states and 158 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-02-17 03:32:50,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:32:50,213 INFO L93 Difference]: Finished difference Result 90 states and 161 transitions. [2023-02-17 03:32:50,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 03:32:50,214 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2023-02-17 03:32:50,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:32:50,215 INFO L225 Difference]: With dead ends: 90 [2023-02-17 03:32:50,215 INFO L226 Difference]: Without dead ends: 90 [2023-02-17 03:32:50,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:50,216 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 65 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:32:50,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 208 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:32:50,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-02-17 03:32:50,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 88. [2023-02-17 03:32:50,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 87 states have (on average 1.839080459770115) internal successors, (160), 87 states have internal predecessors, (160), 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) [2023-02-17 03:32:50,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 160 transitions. [2023-02-17 03:32:50,223 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 160 transitions. Word has length 21 [2023-02-17 03:32:50,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:32:50,229 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 160 transitions. [2023-02-17 03:32:50,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-02-17 03:32:50,229 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 160 transitions. [2023-02-17 03:32:50,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-17 03:32:50,230 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:32:50,230 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] [2023-02-17 03:32:50,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-17 03:32:50,232 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 03:32:50,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:32:50,232 INFO L85 PathProgramCache]: Analyzing trace with hash -795191043, now seen corresponding path program 1 times [2023-02-17 03:32:50,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:32:50,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256851933] [2023-02-17 03:32:50,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:32:50,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:32:50,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:32:50,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:32:50,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:32:50,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256851933] [2023-02-17 03:32:50,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256851933] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:32:50,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:32:50,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 03:32:50,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523206131] [2023-02-17 03:32:50,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:32:50,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 03:32:50,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:32:50,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 03:32:50,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:50,294 INFO L87 Difference]: Start difference. First operand 88 states and 160 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-02-17 03:32:50,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:32:50,315 INFO L93 Difference]: Finished difference Result 167 states and 306 transitions. [2023-02-17 03:32:50,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 03:32:50,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2023-02-17 03:32:50,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:32:50,316 INFO L225 Difference]: With dead ends: 167 [2023-02-17 03:32:50,317 INFO L226 Difference]: Without dead ends: 167 [2023-02-17 03:32:50,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:50,318 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 60 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:32:50,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 161 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:32:50,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2023-02-17 03:32:50,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 117. [2023-02-17 03:32:50,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 116 states have (on average 1.8362068965517242) internal successors, (213), 116 states have internal predecessors, (213), 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) [2023-02-17 03:32:50,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 213 transitions. [2023-02-17 03:32:50,325 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 213 transitions. Word has length 21 [2023-02-17 03:32:50,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:32:50,325 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 213 transitions. [2023-02-17 03:32:50,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-02-17 03:32:50,325 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 213 transitions. [2023-02-17 03:32:50,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-17 03:32:50,326 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:32:50,326 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] [2023-02-17 03:32:50,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-17 03:32:50,327 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 03:32:50,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:32:50,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1816259397, now seen corresponding path program 1 times [2023-02-17 03:32:50,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:32:50,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114903412] [2023-02-17 03:32:50,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:32:50,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:32:50,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:32:50,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:32:50,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:32:50,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114903412] [2023-02-17 03:32:50,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114903412] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:32:50,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:32:50,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 03:32:50,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148205355] [2023-02-17 03:32:50,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:32:50,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 03:32:50,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:32:50,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 03:32:50,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:50,361 INFO L87 Difference]: Start difference. First operand 117 states and 213 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-02-17 03:32:50,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:32:50,372 INFO L93 Difference]: Finished difference Result 169 states and 304 transitions. [2023-02-17 03:32:50,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 03:32:50,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2023-02-17 03:32:50,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:32:50,374 INFO L225 Difference]: With dead ends: 169 [2023-02-17 03:32:50,374 INFO L226 Difference]: Without dead ends: 169 [2023-02-17 03:32:50,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:50,375 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 62 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:32:50,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 186 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:32:50,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2023-02-17 03:32:50,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 167. [2023-02-17 03:32:50,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 166 states have (on average 1.8253012048192772) internal successors, (303), 166 states have internal predecessors, (303), 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) [2023-02-17 03:32:50,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 303 transitions. [2023-02-17 03:32:50,382 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 303 transitions. Word has length 21 [2023-02-17 03:32:50,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:32:50,382 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 303 transitions. [2023-02-17 03:32:50,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-02-17 03:32:50,383 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 303 transitions. [2023-02-17 03:32:50,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-02-17 03:32:50,383 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:32:50,383 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] [2023-02-17 03:32:50,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-02-17 03:32:50,384 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 03:32:50,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:32:50,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1119094160, now seen corresponding path program 1 times [2023-02-17 03:32:50,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:32:50,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918547243] [2023-02-17 03:32:50,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:32:50,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:32:50,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:32:50,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:32:50,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:32:50,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918547243] [2023-02-17 03:32:50,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918547243] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:32:50,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:32:50,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 03:32:50,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475476501] [2023-02-17 03:32:50,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:32:50,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 03:32:50,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:32:50,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 03:32:50,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:50,408 INFO L87 Difference]: Start difference. First operand 167 states and 303 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2023-02-17 03:32:50,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:32:50,416 INFO L93 Difference]: Finished difference Result 171 states and 304 transitions. [2023-02-17 03:32:50,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 03:32:50,417 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 22 [2023-02-17 03:32:50,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:32:50,417 INFO L225 Difference]: With dead ends: 171 [2023-02-17 03:32:50,418 INFO L226 Difference]: Without dead ends: 171 [2023-02-17 03:32:50,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:50,419 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 64 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:32:50,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 204 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:32:50,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2023-02-17 03:32:50,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 169. [2023-02-17 03:32:50,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 168 states have (on average 1.8035714285714286) internal successors, (303), 168 states have internal predecessors, (303), 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) [2023-02-17 03:32:50,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 303 transitions. [2023-02-17 03:32:50,425 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 303 transitions. Word has length 22 [2023-02-17 03:32:50,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:32:50,425 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 303 transitions. [2023-02-17 03:32:50,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2023-02-17 03:32:50,425 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 303 transitions. [2023-02-17 03:32:50,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-02-17 03:32:50,426 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:32:50,426 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] [2023-02-17 03:32:50,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-02-17 03:32:50,427 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 03:32:50,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:32:50,427 INFO L85 PathProgramCache]: Analyzing trace with hash -469253742, now seen corresponding path program 1 times [2023-02-17 03:32:50,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:32:50,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871744116] [2023-02-17 03:32:50,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:32:50,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:32:50,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:32:50,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:32:50,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:32:50,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871744116] [2023-02-17 03:32:50,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871744116] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:32:50,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:32:50,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 03:32:50,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042947596] [2023-02-17 03:32:50,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:32:50,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 03:32:50,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:32:50,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 03:32:50,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:50,456 INFO L87 Difference]: Start difference. First operand 169 states and 303 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2023-02-17 03:32:50,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:32:50,480 INFO L93 Difference]: Finished difference Result 327 states and 580 transitions. [2023-02-17 03:32:50,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 03:32:50,481 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 22 [2023-02-17 03:32:50,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:32:50,482 INFO L225 Difference]: With dead ends: 327 [2023-02-17 03:32:50,482 INFO L226 Difference]: Without dead ends: 327 [2023-02-17 03:32:50,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:50,483 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 62 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:32:50,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 163 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:32:50,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2023-02-17 03:32:50,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 325. [2023-02-17 03:32:50,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 324 states have (on average 1.787037037037037) internal successors, (579), 324 states have internal predecessors, (579), 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) [2023-02-17 03:32:50,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 579 transitions. [2023-02-17 03:32:50,502 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 579 transitions. Word has length 22 [2023-02-17 03:32:50,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:32:50,502 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 579 transitions. [2023-02-17 03:32:50,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2023-02-17 03:32:50,502 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 579 transitions. [2023-02-17 03:32:50,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-02-17 03:32:50,503 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:32:50,503 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] [2023-02-17 03:32:50,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-02-17 03:32:50,504 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 03:32:50,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:32:50,509 INFO L85 PathProgramCache]: Analyzing trace with hash 551814612, now seen corresponding path program 1 times [2023-02-17 03:32:50,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:32:50,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628329306] [2023-02-17 03:32:50,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:32:50,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:32:50,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:32:50,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:32:50,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:32:50,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628329306] [2023-02-17 03:32:50,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628329306] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:32:50,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:32:50,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 03:32:50,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406382611] [2023-02-17 03:32:50,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:32:50,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 03:32:50,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:32:50,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 03:32:50,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:50,543 INFO L87 Difference]: Start difference. First operand 325 states and 579 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2023-02-17 03:32:50,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:32:50,550 INFO L93 Difference]: Finished difference Result 415 states and 744 transitions. [2023-02-17 03:32:50,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 03:32:50,551 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 22 [2023-02-17 03:32:50,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:32:50,552 INFO L225 Difference]: With dead ends: 415 [2023-02-17 03:32:50,552 INFO L226 Difference]: Without dead ends: 415 [2023-02-17 03:32:50,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:50,553 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 57 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:32:50,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 224 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:32:50,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2023-02-17 03:32:50,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 325. [2023-02-17 03:32:50,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 324 states have (on average 1.7746913580246915) internal successors, (575), 324 states have internal predecessors, (575), 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) [2023-02-17 03:32:50,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 575 transitions. [2023-02-17 03:32:50,562 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 575 transitions. Word has length 22 [2023-02-17 03:32:50,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:32:50,562 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 575 transitions. [2023-02-17 03:32:50,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2023-02-17 03:32:50,563 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 575 transitions. [2023-02-17 03:32:50,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-02-17 03:32:50,563 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:32:50,564 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] [2023-02-17 03:32:50,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-02-17 03:32:50,564 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 03:32:50,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:32:50,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1661751056, now seen corresponding path program 1 times [2023-02-17 03:32:50,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:32:50,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096500444] [2023-02-17 03:32:50,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:32:50,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:32:50,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:32:50,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:32:50,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:32:50,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096500444] [2023-02-17 03:32:50,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096500444] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:32:50,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:32:50,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 03:32:50,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989333938] [2023-02-17 03:32:50,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:32:50,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 03:32:50,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:32:50,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 03:32:50,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:50,588 INFO L87 Difference]: Start difference. First operand 325 states and 575 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2023-02-17 03:32:50,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:32:50,602 INFO L93 Difference]: Finished difference Result 611 states and 1088 transitions. [2023-02-17 03:32:50,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 03:32:50,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 23 [2023-02-17 03:32:50,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:32:50,605 INFO L225 Difference]: With dead ends: 611 [2023-02-17 03:32:50,605 INFO L226 Difference]: Without dead ends: 611 [2023-02-17 03:32:50,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:50,606 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 54 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:32:50,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 157 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:32:50,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2023-02-17 03:32:50,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 449. [2023-02-17 03:32:50,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 448 states have (on average 1.7477678571428572) internal successors, (783), 448 states have internal predecessors, (783), 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) [2023-02-17 03:32:50,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 783 transitions. [2023-02-17 03:32:50,624 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 783 transitions. Word has length 23 [2023-02-17 03:32:50,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:32:50,624 INFO L495 AbstractCegarLoop]: Abstraction has 449 states and 783 transitions. [2023-02-17 03:32:50,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2023-02-17 03:32:50,626 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 783 transitions. [2023-02-17 03:32:50,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-02-17 03:32:50,630 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:32:50,630 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] [2023-02-17 03:32:50,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-02-17 03:32:50,631 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 03:32:50,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:32:50,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1612147886, now seen corresponding path program 1 times [2023-02-17 03:32:50,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:32:50,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763036740] [2023-02-17 03:32:50,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:32:50,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:32:50,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:32:50,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:32:50,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:32:50,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763036740] [2023-02-17 03:32:50,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763036740] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:32:50,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:32:50,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 03:32:50,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417664190] [2023-02-17 03:32:50,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:32:50,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 03:32:50,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:32:50,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 03:32:50,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:50,663 INFO L87 Difference]: Start difference. First operand 449 states and 783 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2023-02-17 03:32:50,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:32:50,681 INFO L93 Difference]: Finished difference Result 635 states and 1100 transitions. [2023-02-17 03:32:50,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 03:32:50,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 23 [2023-02-17 03:32:50,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:32:50,683 INFO L225 Difference]: With dead ends: 635 [2023-02-17 03:32:50,683 INFO L226 Difference]: Without dead ends: 635 [2023-02-17 03:32:50,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:50,685 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 60 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:32:50,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 188 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:32:50,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2023-02-17 03:32:50,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 633. [2023-02-17 03:32:50,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 633 states, 632 states have (on average 1.7389240506329113) internal successors, (1099), 632 states have internal predecessors, (1099), 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) [2023-02-17 03:32:50,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 1099 transitions. [2023-02-17 03:32:50,697 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 1099 transitions. Word has length 23 [2023-02-17 03:32:50,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:32:50,698 INFO L495 AbstractCegarLoop]: Abstraction has 633 states and 1099 transitions. [2023-02-17 03:32:50,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2023-02-17 03:32:50,698 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 1099 transitions. [2023-02-17 03:32:50,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-17 03:32:50,699 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:32:50,699 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] [2023-02-17 03:32:50,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-02-17 03:32:50,699 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 03:32:50,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:32:50,700 INFO L85 PathProgramCache]: Analyzing trace with hash 25538215, now seen corresponding path program 1 times [2023-02-17 03:32:50,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:32:50,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281977293] [2023-02-17 03:32:50,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:32:50,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:32:50,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:32:50,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:32:50,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:32:50,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281977293] [2023-02-17 03:32:50,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281977293] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:32:50,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:32:50,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 03:32:50,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807851663] [2023-02-17 03:32:50,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:32:50,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 03:32:50,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:32:50,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 03:32:50,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:50,722 INFO L87 Difference]: Start difference. First operand 633 states and 1099 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2023-02-17 03:32:50,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:32:50,733 INFO L93 Difference]: Finished difference Result 647 states and 1108 transitions. [2023-02-17 03:32:50,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 03:32:50,733 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 24 [2023-02-17 03:32:50,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:32:50,736 INFO L225 Difference]: With dead ends: 647 [2023-02-17 03:32:50,736 INFO L226 Difference]: Without dead ends: 647 [2023-02-17 03:32:50,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:50,737 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 62 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:32:50,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 196 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:32:50,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2023-02-17 03:32:50,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 645. [2023-02-17 03:32:50,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 644 states have (on average 1.718944099378882) internal successors, (1107), 644 states have internal predecessors, (1107), 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) [2023-02-17 03:32:50,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 1107 transitions. [2023-02-17 03:32:50,747 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 1107 transitions. Word has length 24 [2023-02-17 03:32:50,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:32:50,747 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 1107 transitions. [2023-02-17 03:32:50,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2023-02-17 03:32:50,759 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 1107 transitions. [2023-02-17 03:32:50,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-17 03:32:50,762 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:32:50,762 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] [2023-02-17 03:32:50,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-02-17 03:32:50,762 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 03:32:50,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:32:50,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1562809687, now seen corresponding path program 1 times [2023-02-17 03:32:50,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:32:50,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983861054] [2023-02-17 03:32:50,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:32:50,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:32:50,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:32:50,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:32:50,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:32:50,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983861054] [2023-02-17 03:32:50,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983861054] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:32:50,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:32:50,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 03:32:50,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310503018] [2023-02-17 03:32:50,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:32:50,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 03:32:50,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:32:50,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 03:32:50,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:50,795 INFO L87 Difference]: Start difference. First operand 645 states and 1107 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2023-02-17 03:32:50,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:32:50,805 INFO L93 Difference]: Finished difference Result 1191 states and 2060 transitions. [2023-02-17 03:32:50,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 03:32:50,806 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 24 [2023-02-17 03:32:50,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:32:50,810 INFO L225 Difference]: With dead ends: 1191 [2023-02-17 03:32:50,810 INFO L226 Difference]: Without dead ends: 1191 [2023-02-17 03:32:50,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:50,811 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 51 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:32:50,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 155 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:32:50,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1191 states. [2023-02-17 03:32:50,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1191 to 901. [2023-02-17 03:32:50,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 900 states have (on average 1.6833333333333333) internal successors, (1515), 900 states have internal predecessors, (1515), 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) [2023-02-17 03:32:50,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1515 transitions. [2023-02-17 03:32:50,826 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1515 transitions. Word has length 24 [2023-02-17 03:32:50,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:32:50,827 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1515 transitions. [2023-02-17 03:32:50,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2023-02-17 03:32:50,827 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1515 transitions. [2023-02-17 03:32:50,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-17 03:32:50,828 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:32:50,829 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] [2023-02-17 03:32:50,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-02-17 03:32:50,829 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 03:32:50,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:32:50,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1711089255, now seen corresponding path program 1 times [2023-02-17 03:32:50,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:32:50,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128113085] [2023-02-17 03:32:50,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:32:50,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:32:50,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:32:50,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:32:50,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:32:50,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128113085] [2023-02-17 03:32:50,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128113085] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:32:50,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:32:50,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 03:32:50,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436634138] [2023-02-17 03:32:50,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:32:50,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 03:32:50,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:32:50,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 03:32:50,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:50,861 INFO L87 Difference]: Start difference. First operand 901 states and 1515 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2023-02-17 03:32:50,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:32:50,872 INFO L93 Difference]: Finished difference Result 1255 states and 2100 transitions. [2023-02-17 03:32:50,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 03:32:50,873 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 24 [2023-02-17 03:32:50,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:32:50,876 INFO L225 Difference]: With dead ends: 1255 [2023-02-17 03:32:50,876 INFO L226 Difference]: Without dead ends: 1255 [2023-02-17 03:32:50,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:50,878 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 59 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:32:50,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 189 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:32:50,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2023-02-17 03:32:50,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1253. [2023-02-17 03:32:50,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1253 states, 1252 states have (on average 1.676517571884984) internal successors, (2099), 1252 states have internal predecessors, (2099), 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) [2023-02-17 03:32:50,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1253 states to 1253 states and 2099 transitions. [2023-02-17 03:32:50,896 INFO L78 Accepts]: Start accepts. Automaton has 1253 states and 2099 transitions. Word has length 24 [2023-02-17 03:32:50,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:32:50,897 INFO L495 AbstractCegarLoop]: Abstraction has 1253 states and 2099 transitions. [2023-02-17 03:32:50,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2023-02-17 03:32:50,897 INFO L276 IsEmpty]: Start isEmpty. Operand 1253 states and 2099 transitions. [2023-02-17 03:32:50,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-02-17 03:32:50,898 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:32:50,898 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] [2023-02-17 03:32:50,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-02-17 03:32:50,899 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 03:32:50,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:32:50,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1202246301, now seen corresponding path program 1 times [2023-02-17 03:32:50,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:32:50,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829383734] [2023-02-17 03:32:50,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:32:50,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:32:50,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:32:50,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:32:50,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:32:50,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829383734] [2023-02-17 03:32:50,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829383734] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:32:50,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:32:50,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 03:32:50,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782979637] [2023-02-17 03:32:50,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:32:50,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 03:32:50,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:32:50,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 03:32:50,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:50,925 INFO L87 Difference]: Start difference. First operand 1253 states and 2099 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2023-02-17 03:32:50,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:32:50,936 INFO L93 Difference]: Finished difference Result 1271 states and 2100 transitions. [2023-02-17 03:32:50,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 03:32:50,937 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 25 [2023-02-17 03:32:50,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:32:50,940 INFO L225 Difference]: With dead ends: 1271 [2023-02-17 03:32:50,940 INFO L226 Difference]: Without dead ends: 1271 [2023-02-17 03:32:50,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:50,941 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 61 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:32:50,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 192 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:32:50,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1271 states. [2023-02-17 03:32:50,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1271 to 1269. [2023-02-17 03:32:50,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1269 states, 1268 states have (on average 1.6553627760252365) internal successors, (2099), 1268 states have internal predecessors, (2099), 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) [2023-02-17 03:32:50,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1269 states to 1269 states and 2099 transitions. [2023-02-17 03:32:50,959 INFO L78 Accepts]: Start accepts. Automaton has 1269 states and 2099 transitions. Word has length 25 [2023-02-17 03:32:50,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:32:50,960 INFO L495 AbstractCegarLoop]: Abstraction has 1269 states and 2099 transitions. [2023-02-17 03:32:50,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2023-02-17 03:32:50,960 INFO L276 IsEmpty]: Start isEmpty. Operand 1269 states and 2099 transitions. [2023-02-17 03:32:50,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-02-17 03:32:50,962 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:32:50,962 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] [2023-02-17 03:32:50,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-02-17 03:32:50,962 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 03:32:50,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:32:50,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1504373093, now seen corresponding path program 1 times [2023-02-17 03:32:50,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:32:50,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197600208] [2023-02-17 03:32:50,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:32:50,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:32:50,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:32:50,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:32:50,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:32:50,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197600208] [2023-02-17 03:32:50,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197600208] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:32:50,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:32:50,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 03:32:50,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269833917] [2023-02-17 03:32:50,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:32:50,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 03:32:50,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:32:50,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 03:32:50,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:50,993 INFO L87 Difference]: Start difference. First operand 1269 states and 2099 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2023-02-17 03:32:51,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:32:51,009 INFO L93 Difference]: Finished difference Result 2311 states and 3860 transitions. [2023-02-17 03:32:51,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 03:32:51,009 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 25 [2023-02-17 03:32:51,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:32:51,015 INFO L225 Difference]: With dead ends: 2311 [2023-02-17 03:32:51,015 INFO L226 Difference]: Without dead ends: 2311 [2023-02-17 03:32:51,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:51,016 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 48 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:32:51,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 153 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:32:51,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2311 states. [2023-02-17 03:32:51,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2311 to 1797. [2023-02-17 03:32:51,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1797 states, 1796 states have (on average 1.614142538975501) internal successors, (2899), 1796 states have internal predecessors, (2899), 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) [2023-02-17 03:32:51,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1797 states to 1797 states and 2899 transitions. [2023-02-17 03:32:51,053 INFO L78 Accepts]: Start accepts. Automaton has 1797 states and 2899 transitions. Word has length 25 [2023-02-17 03:32:51,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:32:51,053 INFO L495 AbstractCegarLoop]: Abstraction has 1797 states and 2899 transitions. [2023-02-17 03:32:51,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2023-02-17 03:32:51,053 INFO L276 IsEmpty]: Start isEmpty. Operand 1797 states and 2899 transitions. [2023-02-17 03:32:51,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-02-17 03:32:51,055 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:32:51,055 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] [2023-02-17 03:32:51,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-02-17 03:32:51,055 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 03:32:51,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:32:51,055 INFO L85 PathProgramCache]: Analyzing trace with hash 483304739, now seen corresponding path program 1 times [2023-02-17 03:32:51,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:32:51,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651785868] [2023-02-17 03:32:51,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:32:51,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:32:51,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:32:51,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:32:51,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:32:51,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651785868] [2023-02-17 03:32:51,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651785868] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:32:51,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:32:51,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 03:32:51,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63699123] [2023-02-17 03:32:51,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:32:51,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 03:32:51,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:32:51,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 03:32:51,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:51,071 INFO L87 Difference]: Start difference. First operand 1797 states and 2899 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2023-02-17 03:32:51,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:32:51,087 INFO L93 Difference]: Finished difference Result 2471 states and 3972 transitions. [2023-02-17 03:32:51,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 03:32:51,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 25 [2023-02-17 03:32:51,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:32:51,093 INFO L225 Difference]: With dead ends: 2471 [2023-02-17 03:32:51,093 INFO L226 Difference]: Without dead ends: 2471 [2023-02-17 03:32:51,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:51,095 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 58 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:32:51,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 190 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:32:51,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2471 states. [2023-02-17 03:32:51,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2471 to 2469. [2023-02-17 03:32:51,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2469 states, 2468 states have (on average 1.608995137763371) internal successors, (3971), 2468 states have internal predecessors, (3971), 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) [2023-02-17 03:32:51,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2469 states to 2469 states and 3971 transitions. [2023-02-17 03:32:51,129 INFO L78 Accepts]: Start accepts. Automaton has 2469 states and 3971 transitions. Word has length 25 [2023-02-17 03:32:51,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:32:51,130 INFO L495 AbstractCegarLoop]: Abstraction has 2469 states and 3971 transitions. [2023-02-17 03:32:51,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2023-02-17 03:32:51,130 INFO L276 IsEmpty]: Start isEmpty. Operand 2469 states and 3971 transitions. [2023-02-17 03:32:51,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-02-17 03:32:51,132 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:32:51,132 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] [2023-02-17 03:32:51,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-02-17 03:32:51,132 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 03:32:51,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:32:51,133 INFO L85 PathProgramCache]: Analyzing trace with hash -608860292, now seen corresponding path program 1 times [2023-02-17 03:32:51,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:32:51,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55494505] [2023-02-17 03:32:51,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:32:51,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:32:51,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:32:51,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:32:51,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:32:51,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55494505] [2023-02-17 03:32:51,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55494505] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:32:51,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:32:51,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 03:32:51,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470730735] [2023-02-17 03:32:51,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:32:51,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 03:32:51,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:32:51,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 03:32:51,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:51,155 INFO L87 Difference]: Start difference. First operand 2469 states and 3971 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2023-02-17 03:32:51,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:32:51,168 INFO L93 Difference]: Finished difference Result 2503 states and 3972 transitions. [2023-02-17 03:32:51,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 03:32:51,169 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 26 [2023-02-17 03:32:51,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:32:51,174 INFO L225 Difference]: With dead ends: 2503 [2023-02-17 03:32:51,175 INFO L226 Difference]: Without dead ends: 2503 [2023-02-17 03:32:51,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:51,175 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 60 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:32:51,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 188 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:32:51,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2503 states. [2023-02-17 03:32:51,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2503 to 2501. [2023-02-17 03:32:51,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2501 states, 2500 states have (on average 1.5884) internal successors, (3971), 2500 states have internal predecessors, (3971), 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) [2023-02-17 03:32:51,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2501 states to 2501 states and 3971 transitions. [2023-02-17 03:32:51,219 INFO L78 Accepts]: Start accepts. Automaton has 2501 states and 3971 transitions. Word has length 26 [2023-02-17 03:32:51,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:32:51,219 INFO L495 AbstractCegarLoop]: Abstraction has 2501 states and 3971 transitions. [2023-02-17 03:32:51,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2023-02-17 03:32:51,220 INFO L276 IsEmpty]: Start isEmpty. Operand 2501 states and 3971 transitions. [2023-02-17 03:32:51,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-02-17 03:32:51,221 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:32:51,221 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] [2023-02-17 03:32:51,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-02-17 03:32:51,222 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 03:32:51,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:32:51,222 INFO L85 PathProgramCache]: Analyzing trace with hash 2097759102, now seen corresponding path program 1 times [2023-02-17 03:32:51,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:32:51,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762375254] [2023-02-17 03:32:51,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:32:51,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:32:51,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:32:51,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:32:51,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:32:51,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762375254] [2023-02-17 03:32:51,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762375254] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:32:51,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:32:51,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 03:32:51,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389409957] [2023-02-17 03:32:51,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:32:51,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 03:32:51,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:32:51,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 03:32:51,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:51,235 INFO L87 Difference]: Start difference. First operand 2501 states and 3971 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2023-02-17 03:32:51,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:32:51,254 INFO L93 Difference]: Finished difference Result 4487 states and 7204 transitions. [2023-02-17 03:32:51,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 03:32:51,254 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 26 [2023-02-17 03:32:51,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:32:51,265 INFO L225 Difference]: With dead ends: 4487 [2023-02-17 03:32:51,265 INFO L226 Difference]: Without dead ends: 4487 [2023-02-17 03:32:51,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:51,266 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 45 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:32:51,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 151 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:32:51,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4487 states. [2023-02-17 03:32:51,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4487 to 3589. [2023-02-17 03:32:51,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3589 states, 3588 states have (on average 1.5437569676700111) internal successors, (5539), 3588 states have internal predecessors, (5539), 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) [2023-02-17 03:32:51,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3589 states to 3589 states and 5539 transitions. [2023-02-17 03:32:51,317 INFO L78 Accepts]: Start accepts. Automaton has 3589 states and 5539 transitions. Word has length 26 [2023-02-17 03:32:51,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:32:51,318 INFO L495 AbstractCegarLoop]: Abstraction has 3589 states and 5539 transitions. [2023-02-17 03:32:51,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2023-02-17 03:32:51,318 INFO L276 IsEmpty]: Start isEmpty. Operand 3589 states and 5539 transitions. [2023-02-17 03:32:51,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-02-17 03:32:51,321 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:32:51,321 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] [2023-02-17 03:32:51,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-02-17 03:32:51,321 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 03:32:51,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:32:51,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1076690748, now seen corresponding path program 1 times [2023-02-17 03:32:51,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:32:51,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212730174] [2023-02-17 03:32:51,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:32:51,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:32:51,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:32:51,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:32:51,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:32:51,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212730174] [2023-02-17 03:32:51,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212730174] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:32:51,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:32:51,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 03:32:51,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422201432] [2023-02-17 03:32:51,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:32:51,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 03:32:51,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:32:51,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 03:32:51,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:51,335 INFO L87 Difference]: Start difference. First operand 3589 states and 5539 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2023-02-17 03:32:51,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:32:51,356 INFO L93 Difference]: Finished difference Result 4871 states and 7492 transitions. [2023-02-17 03:32:51,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 03:32:51,356 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 26 [2023-02-17 03:32:51,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:32:51,368 INFO L225 Difference]: With dead ends: 4871 [2023-02-17 03:32:51,369 INFO L226 Difference]: Without dead ends: 4871 [2023-02-17 03:32:51,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:51,369 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 57 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:32:51,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 191 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:32:51,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4871 states. [2023-02-17 03:32:51,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4871 to 4869. [2023-02-17 03:32:51,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4869 states, 4868 states have (on average 1.538824979457683) internal successors, (7491), 4868 states have internal predecessors, (7491), 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) [2023-02-17 03:32:51,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4869 states to 4869 states and 7491 transitions. [2023-02-17 03:32:51,445 INFO L78 Accepts]: Start accepts. Automaton has 4869 states and 7491 transitions. Word has length 26 [2023-02-17 03:32:51,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:32:51,446 INFO L495 AbstractCegarLoop]: Abstraction has 4869 states and 7491 transitions. [2023-02-17 03:32:51,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2023-02-17 03:32:51,446 INFO L276 IsEmpty]: Start isEmpty. Operand 4869 states and 7491 transitions. [2023-02-17 03:32:51,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-02-17 03:32:51,449 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:32:51,449 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 03:32:51,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-02-17 03:32:51,449 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 03:32:51,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:32:51,450 INFO L85 PathProgramCache]: Analyzing trace with hash 606237144, now seen corresponding path program 1 times [2023-02-17 03:32:51,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:32:51,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519273436] [2023-02-17 03:32:51,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:32:51,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:32:51,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:32:51,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:32:51,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:32:51,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519273436] [2023-02-17 03:32:51,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519273436] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:32:51,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:32:51,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 03:32:51,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573925716] [2023-02-17 03:32:51,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:32:51,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 03:32:51,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:32:51,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 03:32:51,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:51,463 INFO L87 Difference]: Start difference. First operand 4869 states and 7491 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2023-02-17 03:32:51,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:32:51,483 INFO L93 Difference]: Finished difference Result 4935 states and 7492 transitions. [2023-02-17 03:32:51,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 03:32:51,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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 27 [2023-02-17 03:32:51,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:32:51,493 INFO L225 Difference]: With dead ends: 4935 [2023-02-17 03:32:51,493 INFO L226 Difference]: Without dead ends: 4935 [2023-02-17 03:32:51,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:51,494 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 59 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:32:51,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 184 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:32:51,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4935 states. [2023-02-17 03:32:51,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4935 to 4933. [2023-02-17 03:32:51,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4933 states, 4932 states have (on average 1.5188564476885644) internal successors, (7491), 4932 states have internal predecessors, (7491), 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) [2023-02-17 03:32:51,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4933 states to 4933 states and 7491 transitions. [2023-02-17 03:32:51,573 INFO L78 Accepts]: Start accepts. Automaton has 4933 states and 7491 transitions. Word has length 27 [2023-02-17 03:32:51,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:32:51,573 INFO L495 AbstractCegarLoop]: Abstraction has 4933 states and 7491 transitions. [2023-02-17 03:32:51,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2023-02-17 03:32:51,573 INFO L276 IsEmpty]: Start isEmpty. Operand 4933 states and 7491 transitions. [2023-02-17 03:32:51,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-02-17 03:32:51,577 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:32:51,577 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 03:32:51,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-02-17 03:32:51,577 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 03:32:51,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:32:51,577 INFO L85 PathProgramCache]: Analyzing trace with hash -982110758, now seen corresponding path program 1 times [2023-02-17 03:32:51,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:32:51,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454900075] [2023-02-17 03:32:51,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:32:51,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:32:51,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:32:51,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:32:51,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:32:51,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454900075] [2023-02-17 03:32:51,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454900075] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:32:51,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:32:51,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 03:32:51,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998862598] [2023-02-17 03:32:51,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:32:51,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 03:32:51,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:32:51,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 03:32:51,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:51,592 INFO L87 Difference]: Start difference. First operand 4933 states and 7491 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2023-02-17 03:32:51,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:32:51,623 INFO L93 Difference]: Finished difference Result 8711 states and 13380 transitions. [2023-02-17 03:32:51,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 03:32:51,624 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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 27 [2023-02-17 03:32:51,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:32:51,636 INFO L225 Difference]: With dead ends: 8711 [2023-02-17 03:32:51,637 INFO L226 Difference]: Without dead ends: 8711 [2023-02-17 03:32:51,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:51,637 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 42 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:32:51,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 149 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:32:51,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8711 states. [2023-02-17 03:32:51,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8711 to 7173. [2023-02-17 03:32:51,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7173 states, 7172 states have (on average 1.4728109313998885) internal successors, (10563), 7172 states have internal predecessors, (10563), 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) [2023-02-17 03:32:51,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7173 states to 7173 states and 10563 transitions. [2023-02-17 03:32:51,760 INFO L78 Accepts]: Start accepts. Automaton has 7173 states and 10563 transitions. Word has length 27 [2023-02-17 03:32:51,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:32:51,760 INFO L495 AbstractCegarLoop]: Abstraction has 7173 states and 10563 transitions. [2023-02-17 03:32:51,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2023-02-17 03:32:51,761 INFO L276 IsEmpty]: Start isEmpty. Operand 7173 states and 10563 transitions. [2023-02-17 03:32:51,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-02-17 03:32:51,766 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:32:51,766 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 03:32:51,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-02-17 03:32:51,767 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 03:32:51,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:32:51,767 INFO L85 PathProgramCache]: Analyzing trace with hash -2003179112, now seen corresponding path program 1 times [2023-02-17 03:32:51,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:32:51,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998627414] [2023-02-17 03:32:51,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:32:51,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:32:51,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:32:51,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:32:51,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:32:51,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998627414] [2023-02-17 03:32:51,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998627414] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:32:51,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:32:51,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 03:32:51,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069822703] [2023-02-17 03:32:51,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:32:51,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 03:32:51,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:32:51,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 03:32:51,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:51,780 INFO L87 Difference]: Start difference. First operand 7173 states and 10563 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2023-02-17 03:32:51,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:32:51,824 INFO L93 Difference]: Finished difference Result 9607 states and 14084 transitions. [2023-02-17 03:32:51,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 03:32:51,824 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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 27 [2023-02-17 03:32:51,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:32:51,837 INFO L225 Difference]: With dead ends: 9607 [2023-02-17 03:32:51,838 INFO L226 Difference]: Without dead ends: 9607 [2023-02-17 03:32:51,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:51,838 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 56 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:32:51,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 192 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:32:51,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9607 states. [2023-02-17 03:32:51,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9607 to 9605. [2023-02-17 03:32:52,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9605 states, 9604 states have (on average 1.4663681799250312) internal successors, (14083), 9604 states have internal predecessors, (14083), 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) [2023-02-17 03:32:52,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9605 states to 9605 states and 14083 transitions. [2023-02-17 03:32:52,044 INFO L78 Accepts]: Start accepts. Automaton has 9605 states and 14083 transitions. Word has length 27 [2023-02-17 03:32:52,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:32:52,045 INFO L495 AbstractCegarLoop]: Abstraction has 9605 states and 14083 transitions. [2023-02-17 03:32:52,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2023-02-17 03:32:52,045 INFO L276 IsEmpty]: Start isEmpty. Operand 9605 states and 14083 transitions. [2023-02-17 03:32:52,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-02-17 03:32:52,052 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:32:52,052 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 03:32:52,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-02-17 03:32:52,052 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 03:32:52,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:32:52,053 INFO L85 PathProgramCache]: Analyzing trace with hash -380447663, now seen corresponding path program 1 times [2023-02-17 03:32:52,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:32:52,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145543259] [2023-02-17 03:32:52,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:32:52,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:32:52,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:32:52,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:32:52,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:32:52,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145543259] [2023-02-17 03:32:52,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145543259] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:32:52,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:32:52,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 03:32:52,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219520684] [2023-02-17 03:32:52,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:32:52,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 03:32:52,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:32:52,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 03:32:52,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:52,069 INFO L87 Difference]: Start difference. First operand 9605 states and 14083 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2023-02-17 03:32:52,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:32:52,115 INFO L93 Difference]: Finished difference Result 9735 states and 14084 transitions. [2023-02-17 03:32:52,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 03:32:52,116 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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 28 [2023-02-17 03:32:52,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:32:52,129 INFO L225 Difference]: With dead ends: 9735 [2023-02-17 03:32:52,129 INFO L226 Difference]: Without dead ends: 9735 [2023-02-17 03:32:52,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:52,131 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 58 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:32:52,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 180 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:32:52,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9735 states. [2023-02-17 03:32:52,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9735 to 9733. [2023-02-17 03:32:52,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9733 states, 9732 states have (on average 1.447081792026305) internal successors, (14083), 9732 states have internal predecessors, (14083), 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) [2023-02-17 03:32:52,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9733 states to 9733 states and 14083 transitions. [2023-02-17 03:32:52,308 INFO L78 Accepts]: Start accepts. Automaton has 9733 states and 14083 transitions. Word has length 28 [2023-02-17 03:32:52,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:32:52,308 INFO L495 AbstractCegarLoop]: Abstraction has 9733 states and 14083 transitions. [2023-02-17 03:32:52,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2023-02-17 03:32:52,312 INFO L276 IsEmpty]: Start isEmpty. Operand 9733 states and 14083 transitions. [2023-02-17 03:32:52,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-02-17 03:32:52,319 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:32:52,319 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 03:32:52,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-02-17 03:32:52,319 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 03:32:52,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:32:52,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1968795565, now seen corresponding path program 1 times [2023-02-17 03:32:52,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:32:52,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912783564] [2023-02-17 03:32:52,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:32:52,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:32:52,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:32:52,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:32:52,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:32:52,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912783564] [2023-02-17 03:32:52,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912783564] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:32:52,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:32:52,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 03:32:52,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538736020] [2023-02-17 03:32:52,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:32:52,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 03:32:52,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:32:52,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 03:32:52,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:52,356 INFO L87 Difference]: Start difference. First operand 9733 states and 14083 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2023-02-17 03:32:52,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:32:52,467 INFO L93 Difference]: Finished difference Result 16903 states and 24708 transitions. [2023-02-17 03:32:52,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 03:32:52,468 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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 28 [2023-02-17 03:32:52,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:32:52,494 INFO L225 Difference]: With dead ends: 16903 [2023-02-17 03:32:52,494 INFO L226 Difference]: Without dead ends: 16903 [2023-02-17 03:32:52,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:52,495 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 39 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:32:52,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 147 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:32:52,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16903 states. [2023-02-17 03:32:52,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16903 to 14341. [2023-02-17 03:32:52,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14341 states, 14340 states have (on average 1.4016039051603906) internal successors, (20099), 14340 states have internal predecessors, (20099), 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) [2023-02-17 03:32:52,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14341 states to 14341 states and 20099 transitions. [2023-02-17 03:32:52,709 INFO L78 Accepts]: Start accepts. Automaton has 14341 states and 20099 transitions. Word has length 28 [2023-02-17 03:32:52,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:32:52,709 INFO L495 AbstractCegarLoop]: Abstraction has 14341 states and 20099 transitions. [2023-02-17 03:32:52,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2023-02-17 03:32:52,710 INFO L276 IsEmpty]: Start isEmpty. Operand 14341 states and 20099 transitions. [2023-02-17 03:32:52,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-02-17 03:32:52,722 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:32:52,722 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 03:32:52,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-02-17 03:32:52,722 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 03:32:52,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:32:52,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1305103377, now seen corresponding path program 1 times [2023-02-17 03:32:52,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:32:52,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883858792] [2023-02-17 03:32:52,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:32:52,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:32:52,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:32:52,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:32:52,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:32:52,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883858792] [2023-02-17 03:32:52,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883858792] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:32:52,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:32:52,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 03:32:52,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106156257] [2023-02-17 03:32:52,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:32:52,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 03:32:52,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:32:52,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 03:32:52,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:52,736 INFO L87 Difference]: Start difference. First operand 14341 states and 20099 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2023-02-17 03:32:52,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:32:52,785 INFO L93 Difference]: Finished difference Result 18951 states and 26372 transitions. [2023-02-17 03:32:52,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 03:32:52,786 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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 28 [2023-02-17 03:32:52,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:32:52,812 INFO L225 Difference]: With dead ends: 18951 [2023-02-17 03:32:52,813 INFO L226 Difference]: Without dead ends: 18951 [2023-02-17 03:32:52,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:52,813 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 55 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:32:52,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 193 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:32:52,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18951 states. [2023-02-17 03:32:53,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18951 to 18949. [2023-02-17 03:32:53,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18949 states, 18948 states have (on average 1.3917563858982478) internal successors, (26371), 18948 states have internal predecessors, (26371), 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) [2023-02-17 03:32:53,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18949 states to 18949 states and 26371 transitions. [2023-02-17 03:32:53,121 INFO L78 Accepts]: Start accepts. Automaton has 18949 states and 26371 transitions. Word has length 28 [2023-02-17 03:32:53,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:32:53,122 INFO L495 AbstractCegarLoop]: Abstraction has 18949 states and 26371 transitions. [2023-02-17 03:32:53,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2023-02-17 03:32:53,122 INFO L276 IsEmpty]: Start isEmpty. Operand 18949 states and 26371 transitions. [2023-02-17 03:32:53,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-02-17 03:32:53,135 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:32:53,136 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] [2023-02-17 03:32:53,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-02-17 03:32:53,136 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 03:32:53,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:32:53,137 INFO L85 PathProgramCache]: Analyzing trace with hash -902905267, now seen corresponding path program 1 times [2023-02-17 03:32:53,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:32:53,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130021543] [2023-02-17 03:32:53,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:32:53,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:32:53,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:32:53,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:32:53,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:32:53,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130021543] [2023-02-17 03:32:53,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130021543] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:32:53,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:32:53,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 03:32:53,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624308664] [2023-02-17 03:32:53,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:32:53,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 03:32:53,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:32:53,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 03:32:53,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:53,153 INFO L87 Difference]: Start difference. First operand 18949 states and 26371 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2023-02-17 03:32:53,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:32:53,209 INFO L93 Difference]: Finished difference Result 19207 states and 26372 transitions. [2023-02-17 03:32:53,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 03:32:53,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 29 [2023-02-17 03:32:53,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:32:53,237 INFO L225 Difference]: With dead ends: 19207 [2023-02-17 03:32:53,237 INFO L226 Difference]: Without dead ends: 19207 [2023-02-17 03:32:53,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:53,238 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 57 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:32:53,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 176 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:32:53,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19207 states. [2023-02-17 03:32:53,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19207 to 19205. [2023-02-17 03:32:53,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19205 states, 19204 states have (on average 1.3732034992709852) internal successors, (26371), 19204 states have internal predecessors, (26371), 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) [2023-02-17 03:32:53,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19205 states to 19205 states and 26371 transitions. [2023-02-17 03:32:53,602 INFO L78 Accepts]: Start accepts. Automaton has 19205 states and 26371 transitions. Word has length 29 [2023-02-17 03:32:53,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:32:53,603 INFO L495 AbstractCegarLoop]: Abstraction has 19205 states and 26371 transitions. [2023-02-17 03:32:53,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2023-02-17 03:32:53,603 INFO L276 IsEmpty]: Start isEmpty. Operand 19205 states and 26371 transitions. [2023-02-17 03:32:53,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-02-17 03:32:53,616 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:32:53,616 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] [2023-02-17 03:32:53,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-02-17 03:32:53,617 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 03:32:53,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:32:53,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1803714127, now seen corresponding path program 1 times [2023-02-17 03:32:53,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:32:53,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007886549] [2023-02-17 03:32:53,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:32:53,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:32:53,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:32:53,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:32:53,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:32:53,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007886549] [2023-02-17 03:32:53,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007886549] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:32:53,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:32:53,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 03:32:53,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114548566] [2023-02-17 03:32:53,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:32:53,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 03:32:53,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:32:53,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 03:32:53,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:53,645 INFO L87 Difference]: Start difference. First operand 19205 states and 26371 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2023-02-17 03:32:53,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:32:53,729 INFO L93 Difference]: Finished difference Result 32775 states and 45316 transitions. [2023-02-17 03:32:53,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 03:32:53,730 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 29 [2023-02-17 03:32:53,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:32:53,779 INFO L225 Difference]: With dead ends: 32775 [2023-02-17 03:32:53,779 INFO L226 Difference]: Without dead ends: 32775 [2023-02-17 03:32:53,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:53,780 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 36 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:32:53,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 145 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:32:53,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32775 states. [2023-02-17 03:32:54,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32775 to 28677. [2023-02-17 03:32:54,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28677 states, 28676 states have (on average 1.3302761891477193) internal successors, (38147), 28676 states have internal predecessors, (38147), 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) [2023-02-17 03:32:54,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28677 states to 28677 states and 38147 transitions. [2023-02-17 03:32:54,233 INFO L78 Accepts]: Start accepts. Automaton has 28677 states and 38147 transitions. Word has length 29 [2023-02-17 03:32:54,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:32:54,233 INFO L495 AbstractCegarLoop]: Abstraction has 28677 states and 38147 transitions. [2023-02-17 03:32:54,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2023-02-17 03:32:54,233 INFO L276 IsEmpty]: Start isEmpty. Operand 28677 states and 38147 transitions. [2023-02-17 03:32:54,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-02-17 03:32:54,254 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:32:54,254 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] [2023-02-17 03:32:54,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-02-17 03:32:54,254 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 03:32:54,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:32:54,255 INFO L85 PathProgramCache]: Analyzing trace with hash 782645773, now seen corresponding path program 1 times [2023-02-17 03:32:54,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:32:54,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001406078] [2023-02-17 03:32:54,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:32:54,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:32:54,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:32:54,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:32:54,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:32:54,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001406078] [2023-02-17 03:32:54,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001406078] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:32:54,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:32:54,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 03:32:54,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946538056] [2023-02-17 03:32:54,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:32:54,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 03:32:54,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:32:54,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 03:32:54,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:54,268 INFO L87 Difference]: Start difference. First operand 28677 states and 38147 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2023-02-17 03:32:54,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:32:54,348 INFO L93 Difference]: Finished difference Result 37383 states and 49156 transitions. [2023-02-17 03:32:54,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 03:32:54,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 29 [2023-02-17 03:32:54,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:32:54,403 INFO L225 Difference]: With dead ends: 37383 [2023-02-17 03:32:54,404 INFO L226 Difference]: Without dead ends: 37383 [2023-02-17 03:32:54,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:54,404 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 54 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:32:54,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 194 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:32:54,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37383 states. [2023-02-17 03:32:54,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37383 to 37381. [2023-02-17 03:32:54,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37381 states, 37380 states have (on average 1.315008025682183) internal successors, (49155), 37380 states have internal predecessors, (49155), 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) [2023-02-17 03:32:54,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37381 states to 37381 states and 49155 transitions. [2023-02-17 03:32:54,888 INFO L78 Accepts]: Start accepts. Automaton has 37381 states and 49155 transitions. Word has length 29 [2023-02-17 03:32:54,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:32:54,889 INFO L495 AbstractCegarLoop]: Abstraction has 37381 states and 49155 transitions. [2023-02-17 03:32:54,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2023-02-17 03:32:54,889 INFO L276 IsEmpty]: Start isEmpty. Operand 37381 states and 49155 transitions. [2023-02-17 03:32:54,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-02-17 03:32:54,908 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:32:54,908 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] [2023-02-17 03:32:54,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-02-17 03:32:54,908 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 03:32:54,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:32:54,909 INFO L85 PathProgramCache]: Analyzing trace with hash 80778534, now seen corresponding path program 1 times [2023-02-17 03:32:54,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:32:54,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110834891] [2023-02-17 03:32:54,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:32:54,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:32:54,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:32:54,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:32:54,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:32:54,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110834891] [2023-02-17 03:32:54,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110834891] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:32:54,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:32:54,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 03:32:54,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584584968] [2023-02-17 03:32:54,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:32:54,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 03:32:54,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:32:54,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 03:32:54,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:54,922 INFO L87 Difference]: Start difference. First operand 37381 states and 49155 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2023-02-17 03:32:55,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:32:55,157 INFO L93 Difference]: Finished difference Result 37895 states and 49156 transitions. [2023-02-17 03:32:55,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 03:32:55,157 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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 30 [2023-02-17 03:32:55,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:32:55,204 INFO L225 Difference]: With dead ends: 37895 [2023-02-17 03:32:55,204 INFO L226 Difference]: Without dead ends: 37895 [2023-02-17 03:32:55,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:55,205 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 56 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:32:55,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 172 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:32:55,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37895 states. [2023-02-17 03:32:55,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37895 to 37893. [2023-02-17 03:32:55,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37893 states, 37892 states have (on average 1.2972395228544285) internal successors, (49155), 37892 states have internal predecessors, (49155), 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) [2023-02-17 03:32:55,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37893 states to 37893 states and 49155 transitions. [2023-02-17 03:32:55,752 INFO L78 Accepts]: Start accepts. Automaton has 37893 states and 49155 transitions. Word has length 30 [2023-02-17 03:32:55,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:32:55,752 INFO L495 AbstractCegarLoop]: Abstraction has 37893 states and 49155 transitions. [2023-02-17 03:32:55,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2023-02-17 03:32:55,752 INFO L276 IsEmpty]: Start isEmpty. Operand 37893 states and 49155 transitions. [2023-02-17 03:32:55,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-02-17 03:32:55,768 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:32:55,769 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] [2023-02-17 03:32:55,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-02-17 03:32:55,769 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 03:32:55,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:32:55,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1507569368, now seen corresponding path program 1 times [2023-02-17 03:32:55,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:32:55,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472737528] [2023-02-17 03:32:55,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:32:55,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:32:55,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:32:55,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:32:55,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:32:55,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472737528] [2023-02-17 03:32:55,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472737528] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:32:55,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:32:55,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 03:32:55,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168803512] [2023-02-17 03:32:55,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:32:55,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 03:32:55,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:32:55,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 03:32:55,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:55,782 INFO L87 Difference]: Start difference. First operand 37893 states and 49155 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2023-02-17 03:32:55,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:32:55,921 INFO L93 Difference]: Finished difference Result 73735 states and 92164 transitions. [2023-02-17 03:32:55,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 03:32:55,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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 30 [2023-02-17 03:32:55,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:32:56,022 INFO L225 Difference]: With dead ends: 73735 [2023-02-17 03:32:56,022 INFO L226 Difference]: Without dead ends: 73735 [2023-02-17 03:32:56,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:56,023 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 54 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:32:56,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 163 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:32:56,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73735 states. [2023-02-17 03:32:56,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73735 to 73733. [2023-02-17 03:32:56,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73733 states, 73732 states have (on average 1.2499728747355288) internal successors, (92163), 73732 states have internal predecessors, (92163), 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) [2023-02-17 03:32:56,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73733 states to 73733 states and 92163 transitions. [2023-02-17 03:32:56,972 INFO L78 Accepts]: Start accepts. Automaton has 73733 states and 92163 transitions. Word has length 30 [2023-02-17 03:32:56,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:32:56,972 INFO L495 AbstractCegarLoop]: Abstraction has 73733 states and 92163 transitions. [2023-02-17 03:32:56,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2023-02-17 03:32:56,973 INFO L276 IsEmpty]: Start isEmpty. Operand 73733 states and 92163 transitions. [2023-02-17 03:32:57,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-02-17 03:32:57,011 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:32:57,011 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] [2023-02-17 03:32:57,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-02-17 03:32:57,012 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 03:32:57,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:32:57,012 INFO L85 PathProgramCache]: Analyzing trace with hash -486501014, now seen corresponding path program 1 times [2023-02-17 03:32:57,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:32:57,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599722254] [2023-02-17 03:32:57,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:32:57,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:32:57,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:32:57,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:32:57,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:32:57,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599722254] [2023-02-17 03:32:57,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599722254] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:32:57,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:32:57,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 03:32:57,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76090016] [2023-02-17 03:32:57,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:32:57,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 03:32:57,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:32:57,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 03:32:57,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:57,027 INFO L87 Difference]: Start difference. First operand 73733 states and 92163 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2023-02-17 03:32:57,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:32:57,376 INFO L93 Difference]: Finished difference Result 79879 states and 101380 transitions. [2023-02-17 03:32:57,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 03:32:57,376 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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 30 [2023-02-17 03:32:57,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:32:57,473 INFO L225 Difference]: With dead ends: 79879 [2023-02-17 03:32:57,473 INFO L226 Difference]: Without dead ends: 79879 [2023-02-17 03:32:57,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:57,474 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 33 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:32:57,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 184 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:32:57,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79879 states. [2023-02-17 03:32:58,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79879 to 73733. [2023-02-17 03:32:58,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73733 states, 73732 states have (on average 1.2360847393262084) internal successors, (91139), 73732 states have internal predecessors, (91139), 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) [2023-02-17 03:32:58,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73733 states to 73733 states and 91139 transitions. [2023-02-17 03:32:58,414 INFO L78 Accepts]: Start accepts. Automaton has 73733 states and 91139 transitions. Word has length 30 [2023-02-17 03:32:58,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:32:58,414 INFO L495 AbstractCegarLoop]: Abstraction has 73733 states and 91139 transitions. [2023-02-17 03:32:58,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2023-02-17 03:32:58,415 INFO L276 IsEmpty]: Start isEmpty. Operand 73733 states and 91139 transitions. [2023-02-17 03:32:58,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-02-17 03:32:58,695 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:32:58,695 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 03:32:58,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-02-17 03:32:58,705 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 03:32:58,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:32:58,705 INFO L85 PathProgramCache]: Analyzing trace with hash 510205634, now seen corresponding path program 1 times [2023-02-17 03:32:58,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:32:58,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010305323] [2023-02-17 03:32:58,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:32:58,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:32:58,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:32:58,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:32:58,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:32:58,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010305323] [2023-02-17 03:32:58,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010305323] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:32:58,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:32:58,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 03:32:58,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535395655] [2023-02-17 03:32:58,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:32:58,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 03:32:58,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:32:58,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 03:32:58,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:58,717 INFO L87 Difference]: Start difference. First operand 73733 states and 91139 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2023-02-17 03:32:58,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:32:58,939 INFO L93 Difference]: Finished difference Result 121863 states and 149508 transitions. [2023-02-17 03:32:58,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 03:32:58,939 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 31 [2023-02-17 03:32:58,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:32:59,086 INFO L225 Difference]: With dead ends: 121863 [2023-02-17 03:32:59,087 INFO L226 Difference]: Without dead ends: 121863 [2023-02-17 03:32:59,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:32:59,087 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 30 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:32:59,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 141 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:32:59,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121863 states. [2023-02-17 03:33:00,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121863 to 113669. [2023-02-17 03:33:00,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113669 states, 113668 states have (on average 1.2071911179927508) internal successors, (137219), 113668 states have internal predecessors, (137219), 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) [2023-02-17 03:33:00,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113669 states to 113669 states and 137219 transitions. [2023-02-17 03:33:00,655 INFO L78 Accepts]: Start accepts. Automaton has 113669 states and 137219 transitions. Word has length 31 [2023-02-17 03:33:00,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:33:00,655 INFO L495 AbstractCegarLoop]: Abstraction has 113669 states and 137219 transitions. [2023-02-17 03:33:00,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2023-02-17 03:33:00,655 INFO L276 IsEmpty]: Start isEmpty. Operand 113669 states and 137219 transitions. [2023-02-17 03:33:00,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-02-17 03:33:00,723 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:33:00,723 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 03:33:00,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-02-17 03:33:00,724 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 03:33:00,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:33:00,724 INFO L85 PathProgramCache]: Analyzing trace with hash -510862720, now seen corresponding path program 1 times [2023-02-17 03:33:00,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:33:00,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041837165] [2023-02-17 03:33:00,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:33:00,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:33:00,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:33:00,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:33:00,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:33:00,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041837165] [2023-02-17 03:33:00,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041837165] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:33:00,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:33:00,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 03:33:00,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729679366] [2023-02-17 03:33:00,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:33:00,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 03:33:00,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:33:00,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 03:33:00,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:33:00,737 INFO L87 Difference]: Start difference. First operand 113669 states and 137219 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2023-02-17 03:33:01,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:33:01,309 INFO L93 Difference]: Finished difference Result 144391 states and 169988 transitions. [2023-02-17 03:33:01,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 03:33:01,310 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 31 [2023-02-17 03:33:01,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:33:01,446 INFO L225 Difference]: With dead ends: 144391 [2023-02-17 03:33:01,446 INFO L226 Difference]: Without dead ends: 144391 [2023-02-17 03:33:01,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:33:01,447 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 52 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:33:01,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 196 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:33:01,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144391 states. [2023-02-17 03:33:02,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144391 to 144389. [2023-02-17 03:33:02,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144389 states, 144388 states have (on average 1.177293126852647) internal successors, (169987), 144388 states have internal predecessors, (169987), 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) [2023-02-17 03:33:02,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144389 states to 144389 states and 169987 transitions. [2023-02-17 03:33:02,986 INFO L78 Accepts]: Start accepts. Automaton has 144389 states and 169987 transitions. Word has length 31 [2023-02-17 03:33:02,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:33:02,986 INFO L495 AbstractCegarLoop]: Abstraction has 144389 states and 169987 transitions. [2023-02-17 03:33:02,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2023-02-17 03:33:02,987 INFO L276 IsEmpty]: Start isEmpty. Operand 144389 states and 169987 transitions. [2023-02-17 03:33:03,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-02-17 03:33:03,062 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:33:03,062 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 03:33:03,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-02-17 03:33:03,063 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 03:33:03,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:33:03,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1363278403, now seen corresponding path program 1 times [2023-02-17 03:33:03,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:33:03,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551969485] [2023-02-17 03:33:03,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:33:03,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:33:03,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:33:03,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:33:03,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:33:03,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551969485] [2023-02-17 03:33:03,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551969485] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:33:03,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:33:03,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 03:33:03,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358867856] [2023-02-17 03:33:03,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:33:03,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 03:33:03,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:33:03,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 03:33:03,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:33:03,076 INFO L87 Difference]: Start difference. First operand 144389 states and 169987 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2023-02-17 03:33:03,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:33:03,757 INFO L93 Difference]: Finished difference Result 147463 states and 172036 transitions. [2023-02-17 03:33:03,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 03:33:03,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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 32 [2023-02-17 03:33:03,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:33:03,901 INFO L225 Difference]: With dead ends: 147463 [2023-02-17 03:33:03,902 INFO L226 Difference]: Without dead ends: 147463 [2023-02-17 03:33:03,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:33:03,902 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 54 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:33:03,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 164 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:33:03,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147463 states. [2023-02-17 03:33:05,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147463 to 147461. [2023-02-17 03:33:05,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147461 states, 147460 states have (on average 1.1666553641665536) internal successors, (172035), 147460 states have internal predecessors, (172035), 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) [2023-02-17 03:33:05,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147461 states to 147461 states and 172035 transitions. [2023-02-17 03:33:05,794 INFO L78 Accepts]: Start accepts. Automaton has 147461 states and 172035 transitions. Word has length 32 [2023-02-17 03:33:05,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:33:05,794 INFO L495 AbstractCegarLoop]: Abstraction has 147461 states and 172035 transitions. [2023-02-17 03:33:05,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2023-02-17 03:33:05,794 INFO L276 IsEmpty]: Start isEmpty. Operand 147461 states and 172035 transitions. [2023-02-17 03:33:05,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-02-17 03:33:05,881 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:33:05,881 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 03:33:05,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-02-17 03:33:05,881 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 03:33:05,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:33:05,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1343340991, now seen corresponding path program 1 times [2023-02-17 03:33:05,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:33:05,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649610356] [2023-02-17 03:33:05,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:33:05,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:33:05,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:33:05,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:33:05,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:33:05,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649610356] [2023-02-17 03:33:05,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649610356] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:33:05,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:33:05,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 03:33:05,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496810107] [2023-02-17 03:33:05,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:33:05,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 03:33:05,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:33:05,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 03:33:05,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:33:05,895 INFO L87 Difference]: Start difference. First operand 147461 states and 172035 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2023-02-17 03:33:06,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:33:06,356 INFO L93 Difference]: Finished difference Result 237573 states and 270339 transitions. [2023-02-17 03:33:06,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 03:33:06,356 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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 32 [2023-02-17 03:33:06,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:33:06,685 INFO L225 Difference]: With dead ends: 237573 [2023-02-17 03:33:06,686 INFO L226 Difference]: Without dead ends: 237573 [2023-02-17 03:33:06,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:33:06,687 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 26 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:33:06,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 138 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:33:06,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237573 states. [2023-02-17 03:33:09,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237573 to 229381. [2023-02-17 03:33:09,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229381 states, 229380 states have (on average 1.1428502920917256) internal successors, (262147), 229380 states have internal predecessors, (262147), 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) [2023-02-17 03:33:09,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229381 states to 229381 states and 262147 transitions. [2023-02-17 03:33:09,649 INFO L78 Accepts]: Start accepts. Automaton has 229381 states and 262147 transitions. Word has length 32 [2023-02-17 03:33:09,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:33:09,649 INFO L495 AbstractCegarLoop]: Abstraction has 229381 states and 262147 transitions. [2023-02-17 03:33:09,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2023-02-17 03:33:09,649 INFO L276 IsEmpty]: Start isEmpty. Operand 229381 states and 262147 transitions. [2023-02-17 03:33:09,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-02-17 03:33:09,798 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:33:09,798 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 03:33:09,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-02-17 03:33:09,798 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 03:33:09,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:33:09,799 INFO L85 PathProgramCache]: Analyzing trace with hash 322272637, now seen corresponding path program 1 times [2023-02-17 03:33:09,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:33:09,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501154973] [2023-02-17 03:33:09,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:33:09,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:33:09,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:33:09,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:33:09,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:33:09,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501154973] [2023-02-17 03:33:09,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501154973] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:33:09,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:33:09,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 03:33:09,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499097886] [2023-02-17 03:33:09,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:33:09,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 03:33:09,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:33:09,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 03:33:09,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:33:09,811 INFO L87 Difference]: Start difference. First operand 229381 states and 262147 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2023-02-17 03:33:10,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:33:10,842 INFO L93 Difference]: Finished difference Result 286723 states and 315394 transitions. [2023-02-17 03:33:10,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 03:33:10,843 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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 32 [2023-02-17 03:33:10,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:33:10,843 INFO L225 Difference]: With dead ends: 286723 [2023-02-17 03:33:10,843 INFO L226 Difference]: Without dead ends: 0 [2023-02-17 03:33:10,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:33:10,844 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 50 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:33:10,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 195 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:33:10,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-17 03:33:10,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-17 03:33:10,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2023-02-17 03:33:10,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-17 03:33:10,845 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2023-02-17 03:33:10,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:33:10,845 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-17 03:33:10,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2023-02-17 03:33:10,845 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-17 03:33:10,845 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-17 03:33:10,847 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2023-02-17 03:33:10,847 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2023-02-17 03:33:10,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-02-17 03:33:10,849 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 03:33:10,851 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-17 03:33:10,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.02 03:33:10 BoogieIcfgContainer [2023-02-17 03:33:10,852 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-17 03:33:10,852 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-17 03:33:10,853 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-17 03:33:10,853 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-17 03:33:10,853 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 03:32:49" (3/4) ... [2023-02-17 03:33:10,855 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-17 03:33:10,862 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-02-17 03:33:10,863 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-17 03:33:10,863 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-02-17 03:33:10,863 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-17 03:33:10,889 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-17 03:33:10,889 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-17 03:33:10,889 INFO L158 Benchmark]: Toolchain (without parser) took 21898.21ms. Allocated memory was 102.8MB in the beginning and 14.0GB in the end (delta: 13.9GB). Free memory was 59.5MB in the beginning and 11.1GB in the end (delta: -11.0GB). Peak memory consumption was 2.8GB. Max. memory is 16.1GB. [2023-02-17 03:33:10,890 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 102.8MB. Free memory is still 67.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 03:33:10,890 INFO L158 Benchmark]: CACSL2BoogieTranslator took 163.67ms. Allocated memory is still 102.8MB. Free memory was 59.3MB in the beginning and 48.1MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-02-17 03:33:10,890 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.36ms. Allocated memory is still 102.8MB. Free memory was 48.1MB in the beginning and 46.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-17 03:33:10,890 INFO L158 Benchmark]: Boogie Preprocessor took 29.38ms. Allocated memory is still 102.8MB. Free memory was 46.1MB in the beginning and 44.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 03:33:10,890 INFO L158 Benchmark]: RCFGBuilder took 303.15ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 44.7MB in the beginning and 85.3MB in the end (delta: -40.6MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2023-02-17 03:33:10,891 INFO L158 Benchmark]: TraceAbstraction took 21330.20ms. Allocated memory was 123.7MB in the beginning and 14.0GB in the end (delta: 13.9GB). Free memory was 84.7MB in the beginning and 11.1GB in the end (delta: -11.0GB). Peak memory consumption was 2.8GB. Max. memory is 16.1GB. [2023-02-17 03:33:10,891 INFO L158 Benchmark]: Witness Printer took 36.75ms. Allocated memory is still 14.0GB. Free memory was 11.1GB in the beginning and 11.1GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-02-17 03:33:10,891 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 102.8MB. Free memory is still 67.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 163.67ms. Allocated memory is still 102.8MB. Free memory was 59.3MB in the beginning and 48.1MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.36ms. Allocated memory is still 102.8MB. Free memory was 48.1MB in the beginning and 46.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.38ms. Allocated memory is still 102.8MB. Free memory was 46.1MB in the beginning and 44.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 303.15ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 44.7MB in the beginning and 85.3MB in the end (delta: -40.6MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * TraceAbstraction took 21330.20ms. Allocated memory was 123.7MB in the beginning and 14.0GB in the end (delta: 13.9GB). Free memory was 84.7MB in the beginning and 11.1GB in the end (delta: -11.0GB). Peak memory consumption was 2.8GB. Max. memory is 16.1GB. * Witness Printer took 36.75ms. Allocated memory is still 14.0GB. Free memory was 11.1GB in the beginning and 11.1GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 205]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 6]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 50 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 21.3s, OverallIterations: 38, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.9s, AutomataDifference: 6.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2002 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2002 mSDsluCounter, 6530 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2564 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 192 IncrementalHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 3966 mSDtfsCounter, 192 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 112 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=229381occurred in iteration=37, InterpolantAutomatonStates: 113, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 13.2s AutomataMinimizationTime, 38 MinimizatonAttempts, 32806 StatesRemovedByMinimization, 35 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 951 NumberOfCodeBlocks, 951 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 913 ConstructedInterpolants, 0 QuantifiedInterpolants, 2013 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 38 InterpolantComputations, 38 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-02-17 03:33:10,901 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE