./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/locks/test_locks_11.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b5317dae 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_11.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 dd9c6b82321d3b192dc5809ecc7ca6021855509a18ab1d23ca9eeb538976a0c0 --- Real Ultimate output --- This is Ultimate 0.2.2-?-b5317da-m [2023-02-16 03:52:08,961 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-16 03:52:08,964 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-16 03:52:08,986 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-16 03:52:08,987 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-16 03:52:08,988 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-16 03:52:08,989 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-16 03:52:08,990 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-16 03:52:08,991 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-16 03:52:08,992 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-16 03:52:08,993 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-16 03:52:08,994 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-16 03:52:08,994 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-16 03:52:08,995 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-16 03:52:08,996 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-16 03:52:08,997 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-16 03:52:08,997 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-16 03:52:08,998 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-16 03:52:08,999 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-16 03:52:09,000 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-16 03:52:09,001 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-16 03:52:09,002 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-16 03:52:09,003 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-16 03:52:09,004 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-16 03:52:09,007 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-16 03:52:09,007 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-16 03:52:09,007 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-16 03:52:09,008 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-16 03:52:09,008 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-16 03:52:09,009 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-16 03:52:09,009 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-16 03:52:09,010 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-16 03:52:09,010 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-16 03:52:09,011 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-16 03:52:09,013 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-16 03:52:09,014 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-16 03:52:09,014 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-16 03:52:09,014 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-16 03:52:09,015 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-16 03:52:09,016 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-16 03:52:09,017 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-16 03:52:09,019 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-02-16 03:52:09,040 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-16 03:52:09,040 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-16 03:52:09,041 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-16 03:52:09,041 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-16 03:52:09,041 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-16 03:52:09,042 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-16 03:52:09,043 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-16 03:52:09,043 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-16 03:52:09,043 INFO L138 SettingsManager]: * Use SBE=true [2023-02-16 03:52:09,043 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-16 03:52:09,044 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-16 03:52:09,044 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-16 03:52:09,044 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-16 03:52:09,045 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-16 03:52:09,045 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-16 03:52:09,045 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-02-16 03:52:09,045 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-02-16 03:52:09,045 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-02-16 03:52:09,045 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-16 03:52:09,046 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-16 03:52:09,046 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-16 03:52:09,046 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-16 03:52:09,046 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-16 03:52:09,046 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-16 03:52:09,046 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-16 03:52:09,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 03:52:09,047 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-16 03:52:09,047 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-16 03:52:09,047 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-16 03:52:09,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-16 03:52:09,048 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-16 03:52:09,048 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-16 03:52:09,048 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-16 03:52:09,048 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-16 03:52:09,048 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dd9c6b82321d3b192dc5809ecc7ca6021855509a18ab1d23ca9eeb538976a0c0 [2023-02-16 03:52:09,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-16 03:52:09,328 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-16 03:52:09,330 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-16 03:52:09,331 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-16 03:52:09,331 INFO L275 PluginConnector]: CDTParser initialized [2023-02-16 03:52:09,332 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/locks/test_locks_11.c [2023-02-16 03:52:10,423 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-16 03:52:10,674 INFO L351 CDTParser]: Found 1 translation units. [2023-02-16 03:52:10,675 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_11.c [2023-02-16 03:52:10,682 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6d18d3ec/9bb89f6f73df470ab1accf6e5e0c4ea8/FLAG4af27eec1 [2023-02-16 03:52:10,699 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6d18d3ec/9bb89f6f73df470ab1accf6e5e0c4ea8 [2023-02-16 03:52:10,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-16 03:52:10,703 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-16 03:52:10,706 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-16 03:52:10,706 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-16 03:52:10,709 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-16 03:52:10,709 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 03:52:10" (1/1) ... [2023-02-16 03:52:10,712 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d2d09c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:52:10, skipping insertion in model container [2023-02-16 03:52:10,713 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 03:52:10" (1/1) ... [2023-02-16 03:52:10,719 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-16 03:52:10,740 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-16 03:52:10,910 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_11.c[4246,4259] [2023-02-16 03:52:10,914 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 03:52:10,924 INFO L203 MainTranslator]: Completed pre-run [2023-02-16 03:52:10,943 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_11.c[4246,4259] [2023-02-16 03:52:10,944 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 03:52:10,954 INFO L208 MainTranslator]: Completed translation [2023-02-16 03:52:10,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:52:10 WrapperNode [2023-02-16 03:52:10,955 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-16 03:52:10,956 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-16 03:52:10,956 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-16 03:52:10,956 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-16 03:52:10,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:52:10" (1/1) ... [2023-02-16 03:52:10,973 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:52:10" (1/1) ... [2023-02-16 03:52:10,990 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 149 [2023-02-16 03:52:10,990 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-16 03:52:10,991 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-16 03:52:10,991 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-16 03:52:10,991 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-16 03:52:10,998 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:52:10" (1/1) ... [2023-02-16 03:52:10,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:52:10" (1/1) ... [2023-02-16 03:52:11,000 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:52:10" (1/1) ... [2023-02-16 03:52:11,001 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:52:10" (1/1) ... [2023-02-16 03:52:11,003 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:52:10" (1/1) ... [2023-02-16 03:52:11,007 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:52:10" (1/1) ... [2023-02-16 03:52:11,008 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:52:10" (1/1) ... [2023-02-16 03:52:11,009 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:52:10" (1/1) ... [2023-02-16 03:52:11,011 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-16 03:52:11,012 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-16 03:52:11,012 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-16 03:52:11,012 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-16 03:52:11,013 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:52:10" (1/1) ... [2023-02-16 03:52:11,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 03:52:11,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 03:52:11,042 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) [2023-02-16 03:52:11,048 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 [2023-02-16 03:52:11,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-16 03:52:11,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-16 03:52:11,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-16 03:52:11,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-16 03:52:11,138 INFO L235 CfgBuilder]: Building ICFG [2023-02-16 03:52:11,140 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-16 03:52:11,321 INFO L276 CfgBuilder]: Performing block encoding [2023-02-16 03:52:11,326 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-16 03:52:11,327 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-16 03:52:11,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 03:52:11 BoogieIcfgContainer [2023-02-16 03:52:11,329 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-16 03:52:11,332 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-16 03:52:11,332 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-16 03:52:11,338 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-16 03:52:11,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.02 03:52:10" (1/3) ... [2023-02-16 03:52:11,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c5e49c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 03:52:11, skipping insertion in model container [2023-02-16 03:52:11,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:52:10" (2/3) ... [2023-02-16 03:52:11,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c5e49c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 03:52:11, skipping insertion in model container [2023-02-16 03:52:11,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 03:52:11" (3/3) ... [2023-02-16 03:52:11,340 INFO L112 eAbstractionObserver]: Analyzing ICFG test_locks_11.c [2023-02-16 03:52:11,375 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-16 03:52:11,375 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-02-16 03:52:11,442 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-16 03:52:11,448 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;@cf3905e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-16 03:52:11,448 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-02-16 03:52:11,468 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 41 states have (on average 1.9268292682926829) internal successors, (79), 43 states have internal predecessors, (79), 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) [2023-02-16 03:52:11,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-16 03:52:11,473 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:52:11,473 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-16 03:52:11,474 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-16 03:52:11,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:52:11,478 INFO L85 PathProgramCache]: Analyzing trace with hash 28704011, now seen corresponding path program 1 times [2023-02-16 03:52:11,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 03:52:11,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844429062] [2023-02-16 03:52:11,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:52:11,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 03:52:11,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:52:11,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:52:11,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 03:52:11,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844429062] [2023-02-16 03:52:11,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844429062] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:52:11,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:52:11,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-16 03:52:11,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893798618] [2023-02-16 03:52:11,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:52:11,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-16 03:52:11,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 03:52:11,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-16 03:52:11,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-16 03:52:11,692 INFO L87 Difference]: Start difference. First operand has 44 states, 41 states have (on average 1.9268292682926829) internal successors, (79), 43 states have internal predecessors, (79), 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) [2023-02-16 03:52:11,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:52:11,712 INFO L93 Difference]: Finished difference Result 44 states and 76 transitions. [2023-02-16 03:52:11,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-16 03:52:11,715 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 [2023-02-16 03:52:11,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:52:11,721 INFO L225 Difference]: With dead ends: 44 [2023-02-16 03:52:11,721 INFO L226 Difference]: Without dead ends: 42 [2023-02-16 03:52:11,723 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 [2023-02-16 03:52:11,726 INFO L413 NwaCegarLoop]: 76 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, 76 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 [2023-02-16 03:52:11,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 03:52:11,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-02-16 03:52:11,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2023-02-16 03:52:11,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 40 states have (on average 1.85) internal successors, (74), 41 states have internal predecessors, (74), 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) [2023-02-16 03:52:11,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 74 transitions. [2023-02-16 03:52:11,753 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 74 transitions. Word has length 5 [2023-02-16 03:52:11,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:52:11,753 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 74 transitions. [2023-02-16 03:52:11,753 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) [2023-02-16 03:52:11,754 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 74 transitions. [2023-02-16 03:52:11,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-16 03:52:11,754 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:52:11,754 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-16 03:52:11,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-16 03:52:11,755 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-16 03:52:11,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:52:11,756 INFO L85 PathProgramCache]: Analyzing trace with hash 889698507, now seen corresponding path program 1 times [2023-02-16 03:52:11,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 03:52:11,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464660934] [2023-02-16 03:52:11,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:52:11,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 03:52:11,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:52:11,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:52:11,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 03:52:11,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464660934] [2023-02-16 03:52:11,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464660934] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:52:11,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:52:11,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-16 03:52:11,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160816570] [2023-02-16 03:52:11,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:52:11,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 03:52:11,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 03:52:11,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 03:52:11,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 03:52:11,852 INFO L87 Difference]: Start difference. First operand 42 states and 74 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) [2023-02-16 03:52:11,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:52:11,863 INFO L93 Difference]: Finished difference Result 41 states and 73 transitions. [2023-02-16 03:52:11,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 03:52:11,863 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 [2023-02-16 03:52:11,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:52:11,864 INFO L225 Difference]: With dead ends: 41 [2023-02-16 03:52:11,865 INFO L226 Difference]: Without dead ends: 39 [2023-02-16 03:52:11,865 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 [2023-02-16 03:52:11,866 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 68 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 73 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 [2023-02-16 03:52:11,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 73 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 03:52:11,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-02-16 03:52:11,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2023-02-16 03:52:11,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.868421052631579) internal successors, (71), 38 states have internal predecessors, (71), 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) [2023-02-16 03:52:11,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 71 transitions. [2023-02-16 03:52:11,872 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 71 transitions. Word has length 6 [2023-02-16 03:52:11,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:52:11,872 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 71 transitions. [2023-02-16 03:52:11,872 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) [2023-02-16 03:52:11,873 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 71 transitions. [2023-02-16 03:52:11,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-16 03:52:11,873 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:52:11,873 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 03:52:11,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-16 03:52:11,874 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-16 03:52:11,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:52:11,875 INFO L85 PathProgramCache]: Analyzing trace with hash 458919617, now seen corresponding path program 1 times [2023-02-16 03:52:11,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 03:52:11,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243126668] [2023-02-16 03:52:11,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:52:11,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 03:52:11,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:52:11,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:52:11,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 03:52:11,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243126668] [2023-02-16 03:52:11,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243126668] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:52:11,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:52:11,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 03:52:11,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704322097] [2023-02-16 03:52:11,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:52:11,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 03:52:11,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 03:52:11,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 03:52:11,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 03:52:11,973 INFO L87 Difference]: Start difference. First operand 39 states and 71 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2023-02-16 03:52:12,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:52:12,000 INFO L93 Difference]: Finished difference Result 75 states and 137 transitions. [2023-02-16 03:52:12,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 03:52:12,001 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2023-02-16 03:52:12,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:52:12,002 INFO L225 Difference]: With dead ends: 75 [2023-02-16 03:52:12,002 INFO L226 Difference]: Without dead ends: 75 [2023-02-16 03:52:12,003 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 [2023-02-16 03:52:12,004 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 53 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 139 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 [2023-02-16 03:52:12,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 139 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 03:52:12,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-02-16 03:52:12,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 51. [2023-02-16 03:52:12,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.88) internal successors, (94), 50 states have internal predecessors, (94), 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) [2023-02-16 03:52:12,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 94 transitions. [2023-02-16 03:52:12,013 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 94 transitions. Word has length 18 [2023-02-16 03:52:12,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:52:12,013 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 94 transitions. [2023-02-16 03:52:12,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2023-02-16 03:52:12,014 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 94 transitions. [2023-02-16 03:52:12,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-16 03:52:12,014 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:52:12,015 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 03:52:12,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-16 03:52:12,015 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-16 03:52:12,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:52:12,016 INFO L85 PathProgramCache]: Analyzing trace with hash -552197633, now seen corresponding path program 1 times [2023-02-16 03:52:12,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 03:52:12,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567806439] [2023-02-16 03:52:12,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:52:12,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 03:52:12,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:52:12,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:52:12,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 03:52:12,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567806439] [2023-02-16 03:52:12,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567806439] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:52:12,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:52:12,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 03:52:12,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785020939] [2023-02-16 03:52:12,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:52:12,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 03:52:12,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 03:52:12,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 03:52:12,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 03:52:12,071 INFO L87 Difference]: Start difference. First operand 51 states and 94 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2023-02-16 03:52:12,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:52:12,088 INFO L93 Difference]: Finished difference Result 75 states and 135 transitions. [2023-02-16 03:52:12,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 03:52:12,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2023-02-16 03:52:12,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:52:12,090 INFO L225 Difference]: With dead ends: 75 [2023-02-16 03:52:12,090 INFO L226 Difference]: Without dead ends: 75 [2023-02-16 03:52:12,091 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 [2023-02-16 03:52:12,092 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 53 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 157 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 [2023-02-16 03:52:12,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 157 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 03:52:12,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-02-16 03:52:12,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 73. [2023-02-16 03:52:12,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 72 states have (on average 1.8611111111111112) internal successors, (134), 72 states have internal predecessors, (134), 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) [2023-02-16 03:52:12,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 134 transitions. [2023-02-16 03:52:12,102 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 134 transitions. Word has length 18 [2023-02-16 03:52:12,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:52:12,102 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 134 transitions. [2023-02-16 03:52:12,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2023-02-16 03:52:12,103 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 134 transitions. [2023-02-16 03:52:12,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-02-16 03:52:12,103 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:52:12,104 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 03:52:12,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-16 03:52:12,104 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-16 03:52:12,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:52:12,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1341819263, now seen corresponding path program 1 times [2023-02-16 03:52:12,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 03:52:12,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193534785] [2023-02-16 03:52:12,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:52:12,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 03:52:12,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:52:12,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:52:12,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 03:52:12,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193534785] [2023-02-16 03:52:12,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193534785] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:52:12,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:52:12,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 03:52:12,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049525090] [2023-02-16 03:52:12,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:52:12,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 03:52:12,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 03:52:12,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 03:52:12,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 03:52:12,168 INFO L87 Difference]: Start difference. First operand 73 states and 134 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2023-02-16 03:52:12,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:52:12,184 INFO L93 Difference]: Finished difference Result 78 states and 137 transitions. [2023-02-16 03:52:12,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 03:52:12,184 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 19 [2023-02-16 03:52:12,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:52:12,185 INFO L225 Difference]: With dead ends: 78 [2023-02-16 03:52:12,185 INFO L226 Difference]: Without dead ends: 78 [2023-02-16 03:52:12,186 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 [2023-02-16 03:52:12,187 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 55 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 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 [2023-02-16 03:52:12,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 176 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 03:52:12,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-02-16 03:52:12,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 76. [2023-02-16 03:52:12,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 75 states have (on average 1.8133333333333332) internal successors, (136), 75 states have internal predecessors, (136), 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) [2023-02-16 03:52:12,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 136 transitions. [2023-02-16 03:52:12,195 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 136 transitions. Word has length 19 [2023-02-16 03:52:12,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:52:12,195 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 136 transitions. [2023-02-16 03:52:12,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2023-02-16 03:52:12,195 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 136 transitions. [2023-02-16 03:52:12,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-02-16 03:52:12,196 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:52:12,196 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 03:52:12,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-16 03:52:12,197 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-16 03:52:12,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:52:12,198 INFO L85 PathProgramCache]: Analyzing trace with hash 61955585, now seen corresponding path program 1 times [2023-02-16 03:52:12,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 03:52:12,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479957780] [2023-02-16 03:52:12,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:52:12,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 03:52:12,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:52:12,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:52:12,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 03:52:12,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479957780] [2023-02-16 03:52:12,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479957780] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:52:12,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:52:12,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 03:52:12,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189325442] [2023-02-16 03:52:12,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:52:12,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 03:52:12,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 03:52:12,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 03:52:12,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 03:52:12,250 INFO L87 Difference]: Start difference. First operand 76 states and 136 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2023-02-16 03:52:12,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:52:12,275 INFO L93 Difference]: Finished difference Result 143 states and 258 transitions. [2023-02-16 03:52:12,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 03:52:12,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 19 [2023-02-16 03:52:12,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:52:12,282 INFO L225 Difference]: With dead ends: 143 [2023-02-16 03:52:12,282 INFO L226 Difference]: Without dead ends: 143 [2023-02-16 03:52:12,282 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 [2023-02-16 03:52:12,283 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 50 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 137 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 [2023-02-16 03:52:12,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 137 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 03:52:12,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2023-02-16 03:52:12,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 101. [2023-02-16 03:52:12,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 100 states have (on average 1.81) internal successors, (181), 100 states have internal predecessors, (181), 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) [2023-02-16 03:52:12,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 181 transitions. [2023-02-16 03:52:12,302 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 181 transitions. Word has length 19 [2023-02-16 03:52:12,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:52:12,303 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 181 transitions. [2023-02-16 03:52:12,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2023-02-16 03:52:12,303 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 181 transitions. [2023-02-16 03:52:12,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-02-16 03:52:12,304 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:52:12,305 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 03:52:12,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-16 03:52:12,305 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-16 03:52:12,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:52:12,306 INFO L85 PathProgramCache]: Analyzing trace with hash -949161665, now seen corresponding path program 1 times [2023-02-16 03:52:12,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 03:52:12,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615218080] [2023-02-16 03:52:12,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:52:12,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 03:52:12,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:52:12,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:52:12,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 03:52:12,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615218080] [2023-02-16 03:52:12,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615218080] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:52:12,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:52:12,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 03:52:12,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988242225] [2023-02-16 03:52:12,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:52:12,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 03:52:12,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 03:52:12,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 03:52:12,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 03:52:12,374 INFO L87 Difference]: Start difference. First operand 101 states and 181 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2023-02-16 03:52:12,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:52:12,396 INFO L93 Difference]: Finished difference Result 145 states and 256 transitions. [2023-02-16 03:52:12,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 03:52:12,397 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 19 [2023-02-16 03:52:12,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:52:12,398 INFO L225 Difference]: With dead ends: 145 [2023-02-16 03:52:12,399 INFO L226 Difference]: Without dead ends: 145 [2023-02-16 03:52:12,399 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 [2023-02-16 03:52:12,400 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 52 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 158 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 [2023-02-16 03:52:12,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 158 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 03:52:12,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2023-02-16 03:52:12,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 143. [2023-02-16 03:52:12,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 142 states have (on average 1.795774647887324) internal successors, (255), 142 states have internal predecessors, (255), 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) [2023-02-16 03:52:12,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 255 transitions. [2023-02-16 03:52:12,416 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 255 transitions. Word has length 19 [2023-02-16 03:52:12,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:52:12,417 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 255 transitions. [2023-02-16 03:52:12,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2023-02-16 03:52:12,418 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 255 transitions. [2023-02-16 03:52:12,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-02-16 03:52:12,420 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:52:12,421 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] [2023-02-16 03:52:12,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-02-16 03:52:12,421 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-16 03:52:12,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:52:12,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1920836500, now seen corresponding path program 1 times [2023-02-16 03:52:12,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 03:52:12,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488074217] [2023-02-16 03:52:12,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:52:12,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 03:52:12,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:52:12,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:52:12,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 03:52:12,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488074217] [2023-02-16 03:52:12,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488074217] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:52:12,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:52:12,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 03:52:12,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076251632] [2023-02-16 03:52:12,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:52:12,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 03:52:12,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 03:52:12,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 03:52:12,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 03:52:12,455 INFO L87 Difference]: Start difference. First operand 143 states and 255 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) [2023-02-16 03:52:12,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:52:12,465 INFO L93 Difference]: Finished difference Result 147 states and 256 transitions. [2023-02-16 03:52:12,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 03:52:12,466 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 [2023-02-16 03:52:12,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:52:12,467 INFO L225 Difference]: With dead ends: 147 [2023-02-16 03:52:12,467 INFO L226 Difference]: Without dead ends: 147 [2023-02-16 03:52:12,467 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 [2023-02-16 03:52:12,468 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 54 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 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 [2023-02-16 03:52:12,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 172 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 03:52:12,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2023-02-16 03:52:12,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 145. [2023-02-16 03:52:12,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 144 states have (on average 1.7708333333333333) internal successors, (255), 144 states have internal predecessors, (255), 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) [2023-02-16 03:52:12,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 255 transitions. [2023-02-16 03:52:12,485 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 255 transitions. Word has length 20 [2023-02-16 03:52:12,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:52:12,485 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 255 transitions. [2023-02-16 03:52:12,485 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) [2023-02-16 03:52:12,486 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 255 transitions. [2023-02-16 03:52:12,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-02-16 03:52:12,486 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:52:12,487 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] [2023-02-16 03:52:12,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-02-16 03:52:12,487 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-16 03:52:12,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:52:12,488 INFO L85 PathProgramCache]: Analyzing trace with hash 640972822, now seen corresponding path program 1 times [2023-02-16 03:52:12,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 03:52:12,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216519105] [2023-02-16 03:52:12,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:52:12,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 03:52:12,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:52:12,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:52:12,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 03:52:12,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216519105] [2023-02-16 03:52:12,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216519105] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:52:12,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:52:12,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 03:52:12,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217016292] [2023-02-16 03:52:12,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:52:12,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 03:52:12,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 03:52:12,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 03:52:12,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 03:52:12,519 INFO L87 Difference]: Start difference. First operand 145 states and 255 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) [2023-02-16 03:52:12,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:52:12,529 INFO L93 Difference]: Finished difference Result 279 states and 484 transitions. [2023-02-16 03:52:12,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 03:52:12,530 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 [2023-02-16 03:52:12,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:52:12,531 INFO L225 Difference]: With dead ends: 279 [2023-02-16 03:52:12,531 INFO L226 Difference]: Without dead ends: 279 [2023-02-16 03:52:12,531 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 [2023-02-16 03:52:12,532 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 52 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 139 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 [2023-02-16 03:52:12,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 139 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 03:52:12,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2023-02-16 03:52:12,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 277. [2023-02-16 03:52:12,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 276 states have (on average 1.75) internal successors, (483), 276 states have internal predecessors, (483), 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) [2023-02-16 03:52:12,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 483 transitions. [2023-02-16 03:52:12,546 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 483 transitions. Word has length 20 [2023-02-16 03:52:12,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:52:12,546 INFO L495 AbstractCegarLoop]: Abstraction has 277 states and 483 transitions. [2023-02-16 03:52:12,547 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) [2023-02-16 03:52:12,547 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 483 transitions. [2023-02-16 03:52:12,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-02-16 03:52:12,548 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:52:12,548 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] [2023-02-16 03:52:12,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-02-16 03:52:12,548 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-16 03:52:12,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:52:12,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1652090072, now seen corresponding path program 1 times [2023-02-16 03:52:12,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 03:52:12,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315882381] [2023-02-16 03:52:12,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:52:12,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 03:52:12,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:52:12,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:52:12,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 03:52:12,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315882381] [2023-02-16 03:52:12,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315882381] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:52:12,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:52:12,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 03:52:12,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605873901] [2023-02-16 03:52:12,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:52:12,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 03:52:12,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 03:52:12,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 03:52:12,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 03:52:12,584 INFO L87 Difference]: Start difference. First operand 277 states and 483 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) [2023-02-16 03:52:12,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:52:12,600 INFO L93 Difference]: Finished difference Result 351 states and 616 transitions. [2023-02-16 03:52:12,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 03:52:12,600 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 [2023-02-16 03:52:12,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:52:12,603 INFO L225 Difference]: With dead ends: 351 [2023-02-16 03:52:12,603 INFO L226 Difference]: Without dead ends: 351 [2023-02-16 03:52:12,603 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 [2023-02-16 03:52:12,604 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 47 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 188 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 [2023-02-16 03:52:12,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 188 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 03:52:12,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2023-02-16 03:52:12,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 277. [2023-02-16 03:52:12,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 276 states have (on average 1.7355072463768115) internal successors, (479), 276 states have internal predecessors, (479), 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) [2023-02-16 03:52:12,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 479 transitions. [2023-02-16 03:52:12,629 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 479 transitions. Word has length 20 [2023-02-16 03:52:12,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:52:12,629 INFO L495 AbstractCegarLoop]: Abstraction has 277 states and 479 transitions. [2023-02-16 03:52:12,630 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) [2023-02-16 03:52:12,630 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 479 transitions. [2023-02-16 03:52:12,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-16 03:52:12,638 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:52:12,638 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] [2023-02-16 03:52:12,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-02-16 03:52:12,639 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-16 03:52:12,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:52:12,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1604465292, now seen corresponding path program 1 times [2023-02-16 03:52:12,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 03:52:12,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031164071] [2023-02-16 03:52:12,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:52:12,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 03:52:12,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:52:12,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:52:12,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 03:52:12,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031164071] [2023-02-16 03:52:12,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031164071] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:52:12,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:52:12,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 03:52:12,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910079344] [2023-02-16 03:52:12,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:52:12,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 03:52:12,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 03:52:12,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 03:52:12,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 03:52:12,670 INFO L87 Difference]: Start difference. First operand 277 states and 479 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) [2023-02-16 03:52:12,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:52:12,682 INFO L93 Difference]: Finished difference Result 515 states and 896 transitions. [2023-02-16 03:52:12,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 03:52:12,683 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 [2023-02-16 03:52:12,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:52:12,685 INFO L225 Difference]: With dead ends: 515 [2023-02-16 03:52:12,685 INFO L226 Difference]: Without dead ends: 515 [2023-02-16 03:52:12,686 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 [2023-02-16 03:52:12,689 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 44 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 133 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 [2023-02-16 03:52:12,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 133 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 03:52:12,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2023-02-16 03:52:12,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 385. [2023-02-16 03:52:12,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 384 states have (on average 1.7057291666666667) internal successors, (655), 384 states have internal predecessors, (655), 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) [2023-02-16 03:52:12,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 655 transitions. [2023-02-16 03:52:12,709 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 655 transitions. Word has length 21 [2023-02-16 03:52:12,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:52:12,709 INFO L495 AbstractCegarLoop]: Abstraction has 385 states and 655 transitions. [2023-02-16 03:52:12,709 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) [2023-02-16 03:52:12,713 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 655 transitions. [2023-02-16 03:52:12,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-16 03:52:12,715 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:52:12,716 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] [2023-02-16 03:52:12,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-02-16 03:52:12,716 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-16 03:52:12,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:52:12,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1679384754, now seen corresponding path program 1 times [2023-02-16 03:52:12,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 03:52:12,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395765066] [2023-02-16 03:52:12,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:52:12,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 03:52:12,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:52:12,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:52:12,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 03:52:12,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395765066] [2023-02-16 03:52:12,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395765066] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:52:12,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:52:12,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 03:52:12,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847522731] [2023-02-16 03:52:12,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:52:12,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 03:52:12,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 03:52:12,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 03:52:12,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 03:52:12,765 INFO L87 Difference]: Start difference. First operand 385 states and 655 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) [2023-02-16 03:52:12,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:52:12,780 INFO L93 Difference]: Finished difference Result 539 states and 908 transitions. [2023-02-16 03:52:12,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 03:52:12,781 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 [2023-02-16 03:52:12,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:52:12,783 INFO L225 Difference]: With dead ends: 539 [2023-02-16 03:52:12,783 INFO L226 Difference]: Without dead ends: 539 [2023-02-16 03:52:12,783 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 [2023-02-16 03:52:12,785 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 50 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 160 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 [2023-02-16 03:52:12,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 160 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 03:52:12,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2023-02-16 03:52:12,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 537. [2023-02-16 03:52:12,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 536 states have (on average 1.6921641791044777) internal successors, (907), 536 states have internal predecessors, (907), 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) [2023-02-16 03:52:12,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 907 transitions. [2023-02-16 03:52:12,794 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 907 transitions. Word has length 21 [2023-02-16 03:52:12,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:52:12,796 INFO L495 AbstractCegarLoop]: Abstraction has 537 states and 907 transitions. [2023-02-16 03:52:12,796 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) [2023-02-16 03:52:12,796 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 907 transitions. [2023-02-16 03:52:12,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-02-16 03:52:12,799 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:52:12,799 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] [2023-02-16 03:52:12,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-02-16 03:52:12,799 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-16 03:52:12,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:52:12,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1801397547, now seen corresponding path program 1 times [2023-02-16 03:52:12,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 03:52:12,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133921608] [2023-02-16 03:52:12,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:52:12,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 03:52:12,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:52:12,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:52:12,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 03:52:12,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133921608] [2023-02-16 03:52:12,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133921608] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:52:12,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:52:12,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 03:52:12,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313401801] [2023-02-16 03:52:12,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:52:12,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 03:52:12,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 03:52:12,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 03:52:12,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 03:52:12,842 INFO L87 Difference]: Start difference. First operand 537 states and 907 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) [2023-02-16 03:52:12,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:52:12,857 INFO L93 Difference]: Finished difference Result 551 states and 916 transitions. [2023-02-16 03:52:12,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 03:52:12,857 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 [2023-02-16 03:52:12,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:52:12,860 INFO L225 Difference]: With dead ends: 551 [2023-02-16 03:52:12,860 INFO L226 Difference]: Without dead ends: 551 [2023-02-16 03:52:12,860 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 [2023-02-16 03:52:12,862 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 52 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 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 [2023-02-16 03:52:12,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 164 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 03:52:12,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2023-02-16 03:52:12,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 549. [2023-02-16 03:52:12,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 548 states have (on average 1.6697080291970803) internal successors, (915), 548 states have internal predecessors, (915), 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) [2023-02-16 03:52:12,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 915 transitions. [2023-02-16 03:52:12,872 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 915 transitions. Word has length 22 [2023-02-16 03:52:12,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:52:12,872 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 915 transitions. [2023-02-16 03:52:12,872 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) [2023-02-16 03:52:12,872 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 915 transitions. [2023-02-16 03:52:12,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-02-16 03:52:12,873 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:52:12,873 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] [2023-02-16 03:52:12,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-02-16 03:52:12,874 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-16 03:52:12,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:52:12,874 INFO L85 PathProgramCache]: Analyzing trace with hash 521533869, now seen corresponding path program 1 times [2023-02-16 03:52:12,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 03:52:12,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637272109] [2023-02-16 03:52:12,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:52:12,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 03:52:12,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:52:12,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:52:12,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 03:52:12,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637272109] [2023-02-16 03:52:12,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637272109] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:52:12,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:52:12,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 03:52:12,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019008429] [2023-02-16 03:52:12,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:52:12,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 03:52:12,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 03:52:12,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 03:52:12,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 03:52:12,914 INFO L87 Difference]: Start difference. First operand 549 states and 915 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) [2023-02-16 03:52:12,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:52:12,926 INFO L93 Difference]: Finished difference Result 999 states and 1676 transitions. [2023-02-16 03:52:12,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 03:52:12,926 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 [2023-02-16 03:52:12,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:52:12,932 INFO L225 Difference]: With dead ends: 999 [2023-02-16 03:52:12,932 INFO L226 Difference]: Without dead ends: 999 [2023-02-16 03:52:12,932 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 [2023-02-16 03:52:12,933 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 41 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 131 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 [2023-02-16 03:52:12,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 131 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 03:52:12,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states. [2023-02-16 03:52:12,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 773. [2023-02-16 03:52:12,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 773 states, 772 states have (on average 1.6308290155440415) internal successors, (1259), 772 states have internal predecessors, (1259), 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) [2023-02-16 03:52:12,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 1259 transitions. [2023-02-16 03:52:12,948 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 1259 transitions. Word has length 22 [2023-02-16 03:52:12,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:52:12,949 INFO L495 AbstractCegarLoop]: Abstraction has 773 states and 1259 transitions. [2023-02-16 03:52:12,949 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) [2023-02-16 03:52:12,949 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 1259 transitions. [2023-02-16 03:52:12,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-02-16 03:52:12,951 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:52:12,951 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] [2023-02-16 03:52:12,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-02-16 03:52:12,952 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-16 03:52:12,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:52:12,952 INFO L85 PathProgramCache]: Analyzing trace with hash -489583381, now seen corresponding path program 1 times [2023-02-16 03:52:12,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 03:52:12,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826918136] [2023-02-16 03:52:12,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:52:12,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 03:52:12,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:52:12,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:52:12,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 03:52:12,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826918136] [2023-02-16 03:52:12,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826918136] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:52:12,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:52:12,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 03:52:12,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218865129] [2023-02-16 03:52:12,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:52:12,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 03:52:12,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 03:52:12,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 03:52:12,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 03:52:12,989 INFO L87 Difference]: Start difference. First operand 773 states and 1259 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) [2023-02-16 03:52:13,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:52:13,001 INFO L93 Difference]: Finished difference Result 1063 states and 1716 transitions. [2023-02-16 03:52:13,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 03:52:13,001 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 [2023-02-16 03:52:13,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:52:13,005 INFO L225 Difference]: With dead ends: 1063 [2023-02-16 03:52:13,005 INFO L226 Difference]: Without dead ends: 1063 [2023-02-16 03:52:13,007 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 [2023-02-16 03:52:13,008 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 49 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 161 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 [2023-02-16 03:52:13,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 161 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 03:52:13,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1063 states. [2023-02-16 03:52:13,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1063 to 1061. [2023-02-16 03:52:13,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1061 states, 1060 states have (on average 1.6179245283018868) internal successors, (1715), 1060 states have internal predecessors, (1715), 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) [2023-02-16 03:52:13,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 1715 transitions. [2023-02-16 03:52:13,025 INFO L78 Accepts]: Start accepts. Automaton has 1061 states and 1715 transitions. Word has length 22 [2023-02-16 03:52:13,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:52:13,026 INFO L495 AbstractCegarLoop]: Abstraction has 1061 states and 1715 transitions. [2023-02-16 03:52:13,026 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) [2023-02-16 03:52:13,026 INFO L276 IsEmpty]: Start isEmpty. Operand 1061 states and 1715 transitions. [2023-02-16 03:52:13,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-02-16 03:52:13,027 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:52:13,027 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] [2023-02-16 03:52:13,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-02-16 03:52:13,028 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-16 03:52:13,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:52:13,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1012104857, now seen corresponding path program 1 times [2023-02-16 03:52:13,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 03:52:13,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910745917] [2023-02-16 03:52:13,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:52:13,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 03:52:13,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:52:13,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:52:13,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 03:52:13,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910745917] [2023-02-16 03:52:13,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910745917] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:52:13,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:52:13,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 03:52:13,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138319127] [2023-02-16 03:52:13,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:52:13,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 03:52:13,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 03:52:13,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 03:52:13,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 03:52:13,061 INFO L87 Difference]: Start difference. First operand 1061 states and 1715 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) [2023-02-16 03:52:13,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:52:13,076 INFO L93 Difference]: Finished difference Result 1079 states and 1716 transitions. [2023-02-16 03:52:13,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 03:52:13,076 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 [2023-02-16 03:52:13,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:52:13,079 INFO L225 Difference]: With dead ends: 1079 [2023-02-16 03:52:13,080 INFO L226 Difference]: Without dead ends: 1079 [2023-02-16 03:52:13,080 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 [2023-02-16 03:52:13,081 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 51 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 160 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 [2023-02-16 03:52:13,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 160 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 03:52:13,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2023-02-16 03:52:13,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 1077. [2023-02-16 03:52:13,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1077 states, 1076 states have (on average 1.5938661710037174) internal successors, (1715), 1076 states have internal predecessors, (1715), 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) [2023-02-16 03:52:13,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1077 states to 1077 states and 1715 transitions. [2023-02-16 03:52:13,100 INFO L78 Accepts]: Start accepts. Automaton has 1077 states and 1715 transitions. Word has length 23 [2023-02-16 03:52:13,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:52:13,101 INFO L495 AbstractCegarLoop]: Abstraction has 1077 states and 1715 transitions. [2023-02-16 03:52:13,101 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) [2023-02-16 03:52:13,101 INFO L276 IsEmpty]: Start isEmpty. Operand 1077 states and 1715 transitions. [2023-02-16 03:52:13,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-02-16 03:52:13,102 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:52:13,102 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] [2023-02-16 03:52:13,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-02-16 03:52:13,103 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-16 03:52:13,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:52:13,104 INFO L85 PathProgramCache]: Analyzing trace with hash 2002998761, now seen corresponding path program 1 times [2023-02-16 03:52:13,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 03:52:13,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071200041] [2023-02-16 03:52:13,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:52:13,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 03:52:13,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:52:13,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:52:13,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 03:52:13,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071200041] [2023-02-16 03:52:13,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071200041] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:52:13,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:52:13,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 03:52:13,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87862959] [2023-02-16 03:52:13,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:52:13,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 03:52:13,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 03:52:13,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 03:52:13,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 03:52:13,132 INFO L87 Difference]: Start difference. First operand 1077 states and 1715 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) [2023-02-16 03:52:13,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:52:13,150 INFO L93 Difference]: Finished difference Result 1927 states and 3092 transitions. [2023-02-16 03:52:13,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 03:52:13,150 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 [2023-02-16 03:52:13,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:52:13,156 INFO L225 Difference]: With dead ends: 1927 [2023-02-16 03:52:13,156 INFO L226 Difference]: Without dead ends: 1927 [2023-02-16 03:52:13,157 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 [2023-02-16 03:52:13,157 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 38 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 129 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 [2023-02-16 03:52:13,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 129 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 03:52:13,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1927 states. [2023-02-16 03:52:13,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1927 to 1541. [2023-02-16 03:52:13,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1541 states, 1540 states have (on average 1.55) internal successors, (2387), 1540 states have internal predecessors, (2387), 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) [2023-02-16 03:52:13,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1541 states to 1541 states and 2387 transitions. [2023-02-16 03:52:13,188 INFO L78 Accepts]: Start accepts. Automaton has 1541 states and 2387 transitions. Word has length 23 [2023-02-16 03:52:13,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:52:13,188 INFO L495 AbstractCegarLoop]: Abstraction has 1541 states and 2387 transitions. [2023-02-16 03:52:13,188 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) [2023-02-16 03:52:13,188 INFO L276 IsEmpty]: Start isEmpty. Operand 1541 states and 2387 transitions. [2023-02-16 03:52:13,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-02-16 03:52:13,190 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:52:13,190 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] [2023-02-16 03:52:13,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-02-16 03:52:13,191 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-16 03:52:13,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:52:13,191 INFO L85 PathProgramCache]: Analyzing trace with hash 991881511, now seen corresponding path program 1 times [2023-02-16 03:52:13,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 03:52:13,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089274894] [2023-02-16 03:52:13,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:52:13,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 03:52:13,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:52:13,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:52:13,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 03:52:13,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089274894] [2023-02-16 03:52:13,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089274894] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:52:13,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:52:13,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 03:52:13,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841477617] [2023-02-16 03:52:13,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:52:13,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 03:52:13,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 03:52:13,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 03:52:13,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 03:52:13,217 INFO L87 Difference]: Start difference. First operand 1541 states and 2387 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) [2023-02-16 03:52:13,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:52:13,234 INFO L93 Difference]: Finished difference Result 2087 states and 3204 transitions. [2023-02-16 03:52:13,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 03:52:13,235 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 [2023-02-16 03:52:13,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:52:13,241 INFO L225 Difference]: With dead ends: 2087 [2023-02-16 03:52:13,241 INFO L226 Difference]: Without dead ends: 2087 [2023-02-16 03:52:13,242 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 [2023-02-16 03:52:13,242 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 48 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 162 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 [2023-02-16 03:52:13,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 162 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 03:52:13,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2087 states. [2023-02-16 03:52:13,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2087 to 2085. [2023-02-16 03:52:13,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2085 states, 2084 states have (on average 1.5369481765834934) internal successors, (3203), 2084 states have internal predecessors, (3203), 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) [2023-02-16 03:52:13,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2085 states to 2085 states and 3203 transitions. [2023-02-16 03:52:13,280 INFO L78 Accepts]: Start accepts. Automaton has 2085 states and 3203 transitions. Word has length 23 [2023-02-16 03:52:13,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:52:13,281 INFO L495 AbstractCegarLoop]: Abstraction has 2085 states and 3203 transitions. [2023-02-16 03:52:13,281 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) [2023-02-16 03:52:13,281 INFO L276 IsEmpty]: Start isEmpty. Operand 2085 states and 3203 transitions. [2023-02-16 03:52:13,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-16 03:52:13,283 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:52:13,283 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] [2023-02-16 03:52:13,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-02-16 03:52:13,283 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-16 03:52:13,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:52:13,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1963634176, now seen corresponding path program 1 times [2023-02-16 03:52:13,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 03:52:13,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473189112] [2023-02-16 03:52:13,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:52:13,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 03:52:13,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:52:13,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:52:13,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 03:52:13,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473189112] [2023-02-16 03:52:13,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473189112] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:52:13,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:52:13,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 03:52:13,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004149419] [2023-02-16 03:52:13,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:52:13,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 03:52:13,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 03:52:13,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 03:52:13,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 03:52:13,302 INFO L87 Difference]: Start difference. First operand 2085 states and 3203 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) [2023-02-16 03:52:13,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:52:13,317 INFO L93 Difference]: Finished difference Result 2119 states and 3204 transitions. [2023-02-16 03:52:13,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 03:52:13,317 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 [2023-02-16 03:52:13,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:52:13,323 INFO L225 Difference]: With dead ends: 2119 [2023-02-16 03:52:13,323 INFO L226 Difference]: Without dead ends: 2119 [2023-02-16 03:52:13,324 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 [2023-02-16 03:52:13,324 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 50 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 156 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 [2023-02-16 03:52:13,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 156 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 03:52:13,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2119 states. [2023-02-16 03:52:13,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2119 to 2117. [2023-02-16 03:52:13,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2117 states, 2116 states have (on average 1.5137051039697542) internal successors, (3203), 2116 states have internal predecessors, (3203), 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) [2023-02-16 03:52:13,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2117 states to 2117 states and 3203 transitions. [2023-02-16 03:52:13,360 INFO L78 Accepts]: Start accepts. Automaton has 2117 states and 3203 transitions. Word has length 24 [2023-02-16 03:52:13,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:52:13,360 INFO L495 AbstractCegarLoop]: Abstraction has 2117 states and 3203 transitions. [2023-02-16 03:52:13,360 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) [2023-02-16 03:52:13,361 INFO L276 IsEmpty]: Start isEmpty. Operand 2117 states and 3203 transitions. [2023-02-16 03:52:13,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-16 03:52:13,362 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:52:13,362 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] [2023-02-16 03:52:13,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-02-16 03:52:13,363 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-16 03:52:13,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:52:13,363 INFO L85 PathProgramCache]: Analyzing trace with hash 683770498, now seen corresponding path program 1 times [2023-02-16 03:52:13,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 03:52:13,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211425841] [2023-02-16 03:52:13,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:52:13,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 03:52:13,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:52:13,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:52:13,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 03:52:13,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211425841] [2023-02-16 03:52:13,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211425841] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:52:13,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:52:13,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 03:52:13,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789577314] [2023-02-16 03:52:13,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:52:13,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 03:52:13,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 03:52:13,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 03:52:13,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 03:52:13,388 INFO L87 Difference]: Start difference. First operand 2117 states and 3203 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) [2023-02-16 03:52:13,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:52:13,409 INFO L93 Difference]: Finished difference Result 3719 states and 5668 transitions. [2023-02-16 03:52:13,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 03:52:13,409 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 [2023-02-16 03:52:13,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:52:13,419 INFO L225 Difference]: With dead ends: 3719 [2023-02-16 03:52:13,420 INFO L226 Difference]: Without dead ends: 3719 [2023-02-16 03:52:13,420 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 [2023-02-16 03:52:13,421 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 35 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 127 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 [2023-02-16 03:52:13,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 127 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 03:52:13,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3719 states. [2023-02-16 03:52:13,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3719 to 3077. [2023-02-16 03:52:13,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3077 states, 3076 states have (on average 1.467815344603381) internal successors, (4515), 3076 states have internal predecessors, (4515), 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) [2023-02-16 03:52:13,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3077 states to 3077 states and 4515 transitions. [2023-02-16 03:52:13,514 INFO L78 Accepts]: Start accepts. Automaton has 3077 states and 4515 transitions. Word has length 24 [2023-02-16 03:52:13,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:52:13,514 INFO L495 AbstractCegarLoop]: Abstraction has 3077 states and 4515 transitions. [2023-02-16 03:52:13,514 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) [2023-02-16 03:52:13,515 INFO L276 IsEmpty]: Start isEmpty. Operand 3077 states and 4515 transitions. [2023-02-16 03:52:13,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-16 03:52:13,518 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:52:13,518 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] [2023-02-16 03:52:13,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-02-16 03:52:13,518 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-16 03:52:13,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:52:13,519 INFO L85 PathProgramCache]: Analyzing trace with hash -327346752, now seen corresponding path program 1 times [2023-02-16 03:52:13,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 03:52:13,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827219308] [2023-02-16 03:52:13,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:52:13,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 03:52:13,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:52:13,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:52:13,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 03:52:13,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827219308] [2023-02-16 03:52:13,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827219308] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:52:13,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:52:13,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 03:52:13,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882943158] [2023-02-16 03:52:13,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:52:13,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 03:52:13,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 03:52:13,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 03:52:13,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 03:52:13,548 INFO L87 Difference]: Start difference. First operand 3077 states and 4515 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) [2023-02-16 03:52:13,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:52:13,571 INFO L93 Difference]: Finished difference Result 4103 states and 5956 transitions. [2023-02-16 03:52:13,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 03:52:13,572 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 [2023-02-16 03:52:13,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:52:13,584 INFO L225 Difference]: With dead ends: 4103 [2023-02-16 03:52:13,584 INFO L226 Difference]: Without dead ends: 4103 [2023-02-16 03:52:13,584 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 [2023-02-16 03:52:13,585 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 47 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 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 [2023-02-16 03:52:13,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 163 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 03:52:13,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4103 states. [2023-02-16 03:52:13,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4103 to 4101. [2023-02-16 03:52:13,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4101 states, 4100 states have (on average 1.4524390243902439) internal successors, (5955), 4100 states have internal predecessors, (5955), 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) [2023-02-16 03:52:13,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4101 states to 4101 states and 5955 transitions. [2023-02-16 03:52:13,660 INFO L78 Accepts]: Start accepts. Automaton has 4101 states and 5955 transitions. Word has length 24 [2023-02-16 03:52:13,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:52:13,660 INFO L495 AbstractCegarLoop]: Abstraction has 4101 states and 5955 transitions. [2023-02-16 03:52:13,660 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) [2023-02-16 03:52:13,660 INFO L276 IsEmpty]: Start isEmpty. Operand 4101 states and 5955 transitions. [2023-02-16 03:52:13,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-02-16 03:52:13,664 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:52:13,664 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] [2023-02-16 03:52:13,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-02-16 03:52:13,664 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-16 03:52:13,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:52:13,665 INFO L85 PathProgramCache]: Analyzing trace with hash -277735972, now seen corresponding path program 1 times [2023-02-16 03:52:13,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 03:52:13,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238911086] [2023-02-16 03:52:13,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:52:13,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 03:52:13,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:52:13,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:52:13,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 03:52:13,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238911086] [2023-02-16 03:52:13,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238911086] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:52:13,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:52:13,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 03:52:13,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264126034] [2023-02-16 03:52:13,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:52:13,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 03:52:13,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 03:52:13,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 03:52:13,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 03:52:13,687 INFO L87 Difference]: Start difference. First operand 4101 states and 5955 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) [2023-02-16 03:52:13,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:52:13,710 INFO L93 Difference]: Finished difference Result 4167 states and 5956 transitions. [2023-02-16 03:52:13,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 03:52:13,711 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 [2023-02-16 03:52:13,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:52:13,737 INFO L225 Difference]: With dead ends: 4167 [2023-02-16 03:52:13,737 INFO L226 Difference]: Without dead ends: 4167 [2023-02-16 03:52:13,738 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 [2023-02-16 03:52:13,738 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 49 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 152 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 [2023-02-16 03:52:13,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 152 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 03:52:13,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4167 states. [2023-02-16 03:52:13,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4167 to 4165. [2023-02-16 03:52:13,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4165 states, 4164 states have (on average 1.430115273775216) internal successors, (5955), 4164 states have internal predecessors, (5955), 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) [2023-02-16 03:52:13,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4165 states to 4165 states and 5955 transitions. [2023-02-16 03:52:13,836 INFO L78 Accepts]: Start accepts. Automaton has 4165 states and 5955 transitions. Word has length 25 [2023-02-16 03:52:13,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:52:13,837 INFO L495 AbstractCegarLoop]: Abstraction has 4165 states and 5955 transitions. [2023-02-16 03:52:13,837 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) [2023-02-16 03:52:13,837 INFO L276 IsEmpty]: Start isEmpty. Operand 4165 states and 5955 transitions. [2023-02-16 03:52:13,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-02-16 03:52:13,842 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:52:13,842 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] [2023-02-16 03:52:13,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-02-16 03:52:13,842 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-16 03:52:13,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:52:13,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1557599650, now seen corresponding path program 1 times [2023-02-16 03:52:13,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 03:52:13,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637749587] [2023-02-16 03:52:13,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:52:13,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 03:52:13,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:52:13,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:52:13,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 03:52:13,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637749587] [2023-02-16 03:52:13,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637749587] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:52:13,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:52:13,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 03:52:13,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802284883] [2023-02-16 03:52:13,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:52:13,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 03:52:13,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 03:52:13,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 03:52:13,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 03:52:13,864 INFO L87 Difference]: Start difference. First operand 4165 states and 5955 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) [2023-02-16 03:52:13,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:52:13,895 INFO L93 Difference]: Finished difference Result 7175 states and 10308 transitions. [2023-02-16 03:52:13,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 03:52:13,896 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 [2023-02-16 03:52:13,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:52:13,908 INFO L225 Difference]: With dead ends: 7175 [2023-02-16 03:52:13,908 INFO L226 Difference]: Without dead ends: 7175 [2023-02-16 03:52:13,909 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 [2023-02-16 03:52:13,910 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 32 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 125 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 [2023-02-16 03:52:13,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 125 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 03:52:13,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7175 states. [2023-02-16 03:52:13,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7175 to 6149. [2023-02-16 03:52:14,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6149 states, 6148 states have (on average 1.385003253090436) internal successors, (8515), 6148 states have internal predecessors, (8515), 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) [2023-02-16 03:52:14,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6149 states to 6149 states and 8515 transitions. [2023-02-16 03:52:14,021 INFO L78 Accepts]: Start accepts. Automaton has 6149 states and 8515 transitions. Word has length 25 [2023-02-16 03:52:14,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:52:14,021 INFO L495 AbstractCegarLoop]: Abstraction has 6149 states and 8515 transitions. [2023-02-16 03:52:14,022 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) [2023-02-16 03:52:14,022 INFO L276 IsEmpty]: Start isEmpty. Operand 6149 states and 8515 transitions. [2023-02-16 03:52:14,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-02-16 03:52:14,029 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:52:14,029 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] [2023-02-16 03:52:14,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-02-16 03:52:14,030 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-16 03:52:14,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:52:14,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1726250396, now seen corresponding path program 1 times [2023-02-16 03:52:14,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 03:52:14,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477242344] [2023-02-16 03:52:14,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:52:14,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 03:52:14,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:52:14,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:52:14,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 03:52:14,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477242344] [2023-02-16 03:52:14,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477242344] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:52:14,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:52:14,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 03:52:14,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224905887] [2023-02-16 03:52:14,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:52:14,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 03:52:14,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 03:52:14,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 03:52:14,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 03:52:14,079 INFO L87 Difference]: Start difference. First operand 6149 states and 8515 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) [2023-02-16 03:52:14,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:52:14,110 INFO L93 Difference]: Finished difference Result 8071 states and 11012 transitions. [2023-02-16 03:52:14,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 03:52:14,111 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 [2023-02-16 03:52:14,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:52:14,121 INFO L225 Difference]: With dead ends: 8071 [2023-02-16 03:52:14,121 INFO L226 Difference]: Without dead ends: 8071 [2023-02-16 03:52:14,121 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 [2023-02-16 03:52:14,122 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 46 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 164 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 [2023-02-16 03:52:14,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 164 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 03:52:14,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8071 states. [2023-02-16 03:52:14,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8071 to 8069. [2023-02-16 03:52:14,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8069 states, 8068 states have (on average 1.364774417451661) internal successors, (11011), 8068 states have internal predecessors, (11011), 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) [2023-02-16 03:52:14,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8069 states to 8069 states and 11011 transitions. [2023-02-16 03:52:14,238 INFO L78 Accepts]: Start accepts. Automaton has 8069 states and 11011 transitions. Word has length 25 [2023-02-16 03:52:14,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:52:14,239 INFO L495 AbstractCegarLoop]: Abstraction has 8069 states and 11011 transitions. [2023-02-16 03:52:14,239 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) [2023-02-16 03:52:14,239 INFO L276 IsEmpty]: Start isEmpty. Operand 8069 states and 11011 transitions. [2023-02-16 03:52:14,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-02-16 03:52:14,246 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:52:14,246 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] [2023-02-16 03:52:14,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-02-16 03:52:14,246 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-16 03:52:14,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:52:14,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1040733483, now seen corresponding path program 1 times [2023-02-16 03:52:14,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 03:52:14,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208351719] [2023-02-16 03:52:14,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:52:14,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 03:52:14,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:52:14,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:52:14,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 03:52:14,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208351719] [2023-02-16 03:52:14,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208351719] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:52:14,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:52:14,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 03:52:14,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534505623] [2023-02-16 03:52:14,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:52:14,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 03:52:14,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 03:52:14,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 03:52:14,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 03:52:14,288 INFO L87 Difference]: Start difference. First operand 8069 states and 11011 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) [2023-02-16 03:52:14,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:52:14,318 INFO L93 Difference]: Finished difference Result 8199 states and 11012 transitions. [2023-02-16 03:52:14,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 03:52:14,318 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 [2023-02-16 03:52:14,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:52:14,331 INFO L225 Difference]: With dead ends: 8199 [2023-02-16 03:52:14,331 INFO L226 Difference]: Without dead ends: 8199 [2023-02-16 03:52:14,331 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 [2023-02-16 03:52:14,332 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 48 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 148 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 [2023-02-16 03:52:14,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 148 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 03:52:14,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8199 states. [2023-02-16 03:52:14,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8199 to 8197. [2023-02-16 03:52:14,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8197 states, 8196 states have (on average 1.343460224499756) internal successors, (11011), 8196 states have internal predecessors, (11011), 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) [2023-02-16 03:52:14,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8197 states to 8197 states and 11011 transitions. [2023-02-16 03:52:14,468 INFO L78 Accepts]: Start accepts. Automaton has 8197 states and 11011 transitions. Word has length 26 [2023-02-16 03:52:14,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:52:14,469 INFO L495 AbstractCegarLoop]: Abstraction has 8197 states and 11011 transitions. [2023-02-16 03:52:14,472 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) [2023-02-16 03:52:14,472 INFO L276 IsEmpty]: Start isEmpty. Operand 8197 states and 11011 transitions. [2023-02-16 03:52:14,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-02-16 03:52:14,480 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:52:14,480 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] [2023-02-16 03:52:14,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-02-16 03:52:14,480 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-16 03:52:14,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:52:14,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1974370135, now seen corresponding path program 1 times [2023-02-16 03:52:14,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 03:52:14,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644973886] [2023-02-16 03:52:14,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:52:14,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 03:52:14,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:52:14,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:52:14,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 03:52:14,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644973886] [2023-02-16 03:52:14,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644973886] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:52:14,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:52:14,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 03:52:14,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801342171] [2023-02-16 03:52:14,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:52:14,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 03:52:14,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 03:52:14,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 03:52:14,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 03:52:14,507 INFO L87 Difference]: Start difference. First operand 8197 states and 11011 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) [2023-02-16 03:52:14,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:52:14,546 INFO L93 Difference]: Finished difference Result 13831 states and 18564 transitions. [2023-02-16 03:52:14,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 03:52:14,546 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 [2023-02-16 03:52:14,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:52:14,570 INFO L225 Difference]: With dead ends: 13831 [2023-02-16 03:52:14,570 INFO L226 Difference]: Without dead ends: 13831 [2023-02-16 03:52:14,571 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 [2023-02-16 03:52:14,571 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 29 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 123 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 [2023-02-16 03:52:14,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 123 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 03:52:14,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13831 states. [2023-02-16 03:52:14,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13831 to 12293. [2023-02-16 03:52:14,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12293 states, 12292 states have (on average 1.3019036771884152) internal successors, (16003), 12292 states have internal predecessors, (16003), 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) [2023-02-16 03:52:14,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12293 states to 12293 states and 16003 transitions. [2023-02-16 03:52:14,777 INFO L78 Accepts]: Start accepts. Automaton has 12293 states and 16003 transitions. Word has length 26 [2023-02-16 03:52:14,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:52:14,777 INFO L495 AbstractCegarLoop]: Abstraction has 12293 states and 16003 transitions. [2023-02-16 03:52:14,778 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) [2023-02-16 03:52:14,778 INFO L276 IsEmpty]: Start isEmpty. Operand 12293 states and 16003 transitions. [2023-02-16 03:52:14,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-02-16 03:52:14,790 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:52:14,791 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] [2023-02-16 03:52:14,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-02-16 03:52:14,791 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-16 03:52:14,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:52:14,792 INFO L85 PathProgramCache]: Analyzing trace with hash 963252885, now seen corresponding path program 1 times [2023-02-16 03:52:14,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 03:52:14,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995113056] [2023-02-16 03:52:14,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:52:14,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 03:52:14,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:52:14,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:52:14,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 03:52:14,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995113056] [2023-02-16 03:52:14,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995113056] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:52:14,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:52:14,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 03:52:14,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861875642] [2023-02-16 03:52:14,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:52:14,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 03:52:14,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 03:52:14,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 03:52:14,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 03:52:14,832 INFO L87 Difference]: Start difference. First operand 12293 states and 16003 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) [2023-02-16 03:52:14,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:52:14,879 INFO L93 Difference]: Finished difference Result 15879 states and 20228 transitions. [2023-02-16 03:52:14,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 03:52:14,880 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 [2023-02-16 03:52:14,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:52:14,907 INFO L225 Difference]: With dead ends: 15879 [2023-02-16 03:52:14,908 INFO L226 Difference]: Without dead ends: 15879 [2023-02-16 03:52:14,908 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 [2023-02-16 03:52:14,908 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 45 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 165 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 [2023-02-16 03:52:14,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 165 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 03:52:14,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15879 states. [2023-02-16 03:52:15,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15879 to 15877. [2023-02-16 03:52:15,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15877 states, 15876 states have (on average 1.2740614764424287) internal successors, (20227), 15876 states have internal predecessors, (20227), 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) [2023-02-16 03:52:15,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15877 states to 15877 states and 20227 transitions. [2023-02-16 03:52:15,197 INFO L78 Accepts]: Start accepts. Automaton has 15877 states and 20227 transitions. Word has length 26 [2023-02-16 03:52:15,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:52:15,198 INFO L495 AbstractCegarLoop]: Abstraction has 15877 states and 20227 transitions. [2023-02-16 03:52:15,198 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) [2023-02-16 03:52:15,198 INFO L276 IsEmpty]: Start isEmpty. Operand 15877 states and 20227 transitions. [2023-02-16 03:52:15,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-02-16 03:52:15,212 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:52:15,212 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] [2023-02-16 03:52:15,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-02-16 03:52:15,213 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-16 03:52:15,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:52:15,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1076147793, now seen corresponding path program 1 times [2023-02-16 03:52:15,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 03:52:15,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170682670] [2023-02-16 03:52:15,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:52:15,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 03:52:15,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:52:15,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:52:15,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 03:52:15,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170682670] [2023-02-16 03:52:15,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170682670] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:52:15,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:52:15,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 03:52:15,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657500010] [2023-02-16 03:52:15,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:52:15,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 03:52:15,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 03:52:15,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 03:52:15,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 03:52:15,239 INFO L87 Difference]: Start difference. First operand 15877 states and 20227 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) [2023-02-16 03:52:15,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:52:15,369 INFO L93 Difference]: Finished difference Result 16135 states and 20228 transitions. [2023-02-16 03:52:15,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 03:52:15,370 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 [2023-02-16 03:52:15,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:52:15,400 INFO L225 Difference]: With dead ends: 16135 [2023-02-16 03:52:15,400 INFO L226 Difference]: Without dead ends: 16135 [2023-02-16 03:52:15,400 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 [2023-02-16 03:52:15,401 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 47 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 144 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 [2023-02-16 03:52:15,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 144 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 03:52:15,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16135 states. [2023-02-16 03:52:15,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16135 to 16133. [2023-02-16 03:52:15,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16133 states, 16132 states have (on average 1.2538432928341186) internal successors, (20227), 16132 states have internal predecessors, (20227), 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) [2023-02-16 03:52:15,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16133 states to 16133 states and 20227 transitions. [2023-02-16 03:52:15,636 INFO L78 Accepts]: Start accepts. Automaton has 16133 states and 20227 transitions. Word has length 27 [2023-02-16 03:52:15,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:52:15,636 INFO L495 AbstractCegarLoop]: Abstraction has 16133 states and 20227 transitions. [2023-02-16 03:52:15,637 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) [2023-02-16 03:52:15,637 INFO L276 IsEmpty]: Start isEmpty. Operand 16133 states and 20227 transitions. [2023-02-16 03:52:15,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-02-16 03:52:15,651 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:52:15,651 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] [2023-02-16 03:52:15,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-02-16 03:52:15,652 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-16 03:52:15,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:52:15,652 INFO L85 PathProgramCache]: Analyzing trace with hash -203715885, now seen corresponding path program 1 times [2023-02-16 03:52:15,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 03:52:15,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019752446] [2023-02-16 03:52:15,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:52:15,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 03:52:15,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:52:15,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:52:15,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 03:52:15,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019752446] [2023-02-16 03:52:15,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019752446] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:52:15,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:52:15,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 03:52:15,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327446118] [2023-02-16 03:52:15,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:52:15,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 03:52:15,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 03:52:15,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 03:52:15,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 03:52:15,687 INFO L87 Difference]: Start difference. First operand 16133 states and 20227 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) [2023-02-16 03:52:15,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:52:15,759 INFO L93 Difference]: Finished difference Result 26631 states and 33028 transitions. [2023-02-16 03:52:15,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 03:52:15,760 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 [2023-02-16 03:52:15,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:52:15,798 INFO L225 Difference]: With dead ends: 26631 [2023-02-16 03:52:15,799 INFO L226 Difference]: Without dead ends: 26631 [2023-02-16 03:52:15,799 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 [2023-02-16 03:52:15,800 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 26 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 121 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 [2023-02-16 03:52:15,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 121 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 03:52:15,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26631 states. [2023-02-16 03:52:16,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26631 to 24581. [2023-02-16 03:52:16,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24581 states, 24580 states have (on average 1.2186737184703011) internal successors, (29955), 24580 states have internal predecessors, (29955), 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) [2023-02-16 03:52:16,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24581 states to 24581 states and 29955 transitions. [2023-02-16 03:52:16,261 INFO L78 Accepts]: Start accepts. Automaton has 24581 states and 29955 transitions. Word has length 27 [2023-02-16 03:52:16,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:52:16,261 INFO L495 AbstractCegarLoop]: Abstraction has 24581 states and 29955 transitions. [2023-02-16 03:52:16,261 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) [2023-02-16 03:52:16,261 INFO L276 IsEmpty]: Start isEmpty. Operand 24581 states and 29955 transitions. [2023-02-16 03:52:16,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-02-16 03:52:16,415 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:52:16,416 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] [2023-02-16 03:52:16,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-02-16 03:52:16,416 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-16 03:52:16,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:52:16,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1214833135, now seen corresponding path program 1 times [2023-02-16 03:52:16,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 03:52:16,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103315565] [2023-02-16 03:52:16,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:52:16,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 03:52:16,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:52:16,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:52:16,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 03:52:16,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103315565] [2023-02-16 03:52:16,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103315565] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:52:16,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:52:16,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 03:52:16,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128820004] [2023-02-16 03:52:16,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:52:16,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 03:52:16,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 03:52:16,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 03:52:16,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 03:52:16,462 INFO L87 Difference]: Start difference. First operand 24581 states and 29955 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) [2023-02-16 03:52:16,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:52:16,540 INFO L93 Difference]: Finished difference Result 31239 states and 36868 transitions. [2023-02-16 03:52:16,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 03:52:16,540 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 [2023-02-16 03:52:16,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:52:16,584 INFO L225 Difference]: With dead ends: 31239 [2023-02-16 03:52:16,585 INFO L226 Difference]: Without dead ends: 31239 [2023-02-16 03:52:16,585 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 [2023-02-16 03:52:16,586 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 44 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 166 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 [2023-02-16 03:52:16,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 166 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 03:52:16,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31239 states. [2023-02-16 03:52:16,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31239 to 31237. [2023-02-16 03:52:16,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31237 states, 31236 states have (on average 1.1802727621974645) internal successors, (36867), 31236 states have internal predecessors, (36867), 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) [2023-02-16 03:52:17,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31237 states to 31237 states and 36867 transitions. [2023-02-16 03:52:17,134 INFO L78 Accepts]: Start accepts. Automaton has 31237 states and 36867 transitions. Word has length 27 [2023-02-16 03:52:17,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:52:17,135 INFO L495 AbstractCegarLoop]: Abstraction has 31237 states and 36867 transitions. [2023-02-16 03:52:17,135 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) [2023-02-16 03:52:17,135 INFO L276 IsEmpty]: Start isEmpty. Operand 31237 states and 36867 transitions. [2023-02-16 03:52:17,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-02-16 03:52:17,155 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:52:17,155 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] [2023-02-16 03:52:17,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-02-16 03:52:17,155 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-16 03:52:17,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:52:17,156 INFO L85 PathProgramCache]: Analyzing trace with hash -2020009046, now seen corresponding path program 1 times [2023-02-16 03:52:17,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 03:52:17,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410600575] [2023-02-16 03:52:17,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:52:17,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 03:52:17,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:52:17,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:52:17,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 03:52:17,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410600575] [2023-02-16 03:52:17,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410600575] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:52:17,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:52:17,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 03:52:17,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084357105] [2023-02-16 03:52:17,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:52:17,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 03:52:17,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 03:52:17,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 03:52:17,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 03:52:17,177 INFO L87 Difference]: Start difference. First operand 31237 states and 36867 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) [2023-02-16 03:52:17,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:52:17,262 INFO L93 Difference]: Finished difference Result 31751 states and 36868 transitions. [2023-02-16 03:52:17,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 03:52:17,263 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 [2023-02-16 03:52:17,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:52:17,301 INFO L225 Difference]: With dead ends: 31751 [2023-02-16 03:52:17,301 INFO L226 Difference]: Without dead ends: 31751 [2023-02-16 03:52:17,301 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 [2023-02-16 03:52:17,302 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 46 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 140 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 [2023-02-16 03:52:17,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 140 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 03:52:17,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31751 states. [2023-02-16 03:52:17,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31751 to 31749. [2023-02-16 03:52:17,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31749 states, 31748 states have (on average 1.1612385032128008) internal successors, (36867), 31748 states have internal predecessors, (36867), 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) [2023-02-16 03:52:17,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31749 states to 31749 states and 36867 transitions. [2023-02-16 03:52:17,769 INFO L78 Accepts]: Start accepts. Automaton has 31749 states and 36867 transitions. Word has length 28 [2023-02-16 03:52:17,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:52:17,769 INFO L495 AbstractCegarLoop]: Abstraction has 31749 states and 36867 transitions. [2023-02-16 03:52:17,770 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) [2023-02-16 03:52:17,770 INFO L276 IsEmpty]: Start isEmpty. Operand 31749 states and 36867 transitions. [2023-02-16 03:52:17,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-02-16 03:52:17,791 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:52:17,792 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] [2023-02-16 03:52:17,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-02-16 03:52:17,792 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-16 03:52:17,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:52:17,793 INFO L85 PathProgramCache]: Analyzing trace with hash 995094572, now seen corresponding path program 1 times [2023-02-16 03:52:17,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 03:52:17,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44005523] [2023-02-16 03:52:17,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:52:17,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 03:52:17,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:52:17,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:52:17,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 03:52:17,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44005523] [2023-02-16 03:52:17,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44005523] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:52:17,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:52:17,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 03:52:17,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798122564] [2023-02-16 03:52:17,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:52:17,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 03:52:17,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 03:52:17,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 03:52:17,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 03:52:17,816 INFO L87 Difference]: Start difference. First operand 31749 states and 36867 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) [2023-02-16 03:52:18,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:52:18,068 INFO L93 Difference]: Finished difference Result 61445 states and 67587 transitions. [2023-02-16 03:52:18,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 03:52:18,069 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 [2023-02-16 03:52:18,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:52:18,119 INFO L225 Difference]: With dead ends: 61445 [2023-02-16 03:52:18,119 INFO L226 Difference]: Without dead ends: 31749 [2023-02-16 03:52:18,119 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 [2023-02-16 03:52:18,120 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 43 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 138 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 [2023-02-16 03:52:18,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 138 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 03:52:18,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31749 states. [2023-02-16 03:52:18,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31749 to 31749. [2023-02-16 03:52:18,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31749 states, 31748 states have (on average 1.096730502708832) internal successors, (34819), 31748 states have internal predecessors, (34819), 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) [2023-02-16 03:52:18,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31749 states to 31749 states and 34819 transitions. [2023-02-16 03:52:18,486 INFO L78 Accepts]: Start accepts. Automaton has 31749 states and 34819 transitions. Word has length 28 [2023-02-16 03:52:18,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:52:18,487 INFO L495 AbstractCegarLoop]: Abstraction has 31749 states and 34819 transitions. [2023-02-16 03:52:18,487 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) [2023-02-16 03:52:18,487 INFO L276 IsEmpty]: Start isEmpty. Operand 31749 states and 34819 transitions. [2023-02-16 03:52:18,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-02-16 03:52:18,508 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:52:18,508 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] [2023-02-16 03:52:18,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-02-16 03:52:18,509 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-16 03:52:18,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:52:18,509 INFO L85 PathProgramCache]: Analyzing trace with hash 2006211822, now seen corresponding path program 1 times [2023-02-16 03:52:18,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 03:52:18,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803531897] [2023-02-16 03:52:18,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:52:18,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 03:52:18,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:52:18,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:52:18,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 03:52:18,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803531897] [2023-02-16 03:52:18,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803531897] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:52:18,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:52:18,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 03:52:18,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166679698] [2023-02-16 03:52:18,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:52:18,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 03:52:18,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 03:52:18,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 03:52:18,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 03:52:18,531 INFO L87 Difference]: Start difference. First operand 31749 states and 34819 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) [2023-02-16 03:52:18,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:52:18,607 INFO L93 Difference]: Finished difference Result 31747 states and 33794 transitions. [2023-02-16 03:52:18,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 03:52:18,607 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 [2023-02-16 03:52:18,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:52:18,608 INFO L225 Difference]: With dead ends: 31747 [2023-02-16 03:52:18,608 INFO L226 Difference]: Without dead ends: 0 [2023-02-16 03:52:18,608 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 [2023-02-16 03:52:18,609 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 20 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 03:52:18,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 78 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 03:52:18,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-16 03:52:18,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-16 03:52:18,610 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) [2023-02-16 03:52:18,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-16 03:52:18,610 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2023-02-16 03:52:18,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:52:18,610 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-16 03:52:18,610 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) [2023-02-16 03:52:18,611 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-16 03:52:18,611 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-16 03:52:18,613 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2023-02-16 03:52:18,613 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2023-02-16 03:52:18,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-02-16 03:52:18,616 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] [2023-02-16 03:52:18,618 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-16 03:52:18,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.02 03:52:18 BoogieIcfgContainer [2023-02-16 03:52:18,620 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-16 03:52:18,620 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-16 03:52:18,621 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-16 03:52:18,621 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-16 03:52:18,621 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 03:52:11" (3/4) ... [2023-02-16 03:52:18,623 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-16 03:52:18,635 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-02-16 03:52:18,636 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-16 03:52:18,636 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-02-16 03:52:18,636 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-16 03:52:18,679 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-16 03:52:18,679 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-16 03:52:18,681 INFO L158 Benchmark]: Toolchain (without parser) took 7976.59ms. Allocated memory was 142.6MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 105.5MB in the beginning and 760.5MB in the end (delta: -655.0MB). Peak memory consumption was 668.2MB. Max. memory is 16.1GB. [2023-02-16 03:52:18,681 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 142.6MB. Free memory is still 114.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-16 03:52:18,681 INFO L158 Benchmark]: CACSL2BoogieTranslator took 249.85ms. Allocated memory is still 142.6MB. Free memory was 105.5MB in the beginning and 94.4MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-02-16 03:52:18,683 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.92ms. Allocated memory is still 142.6MB. Free memory was 94.4MB in the beginning and 92.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-16 03:52:18,683 INFO L158 Benchmark]: Boogie Preprocessor took 20.62ms. Allocated memory is still 142.6MB. Free memory was 92.9MB in the beginning and 91.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-16 03:52:18,687 INFO L158 Benchmark]: RCFGBuilder took 317.22ms. Allocated memory is still 142.6MB. Free memory was 91.3MB in the beginning and 76.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-02-16 03:52:18,688 INFO L158 Benchmark]: TraceAbstraction took 7288.02ms. Allocated memory was 142.6MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 76.1MB in the beginning and 763.7MB in the end (delta: -687.5MB). Peak memory consumption was 636.8MB. Max. memory is 16.1GB. [2023-02-16 03:52:18,688 INFO L158 Benchmark]: Witness Printer took 59.15ms. Allocated memory is still 1.5GB. Free memory was 763.7MB in the beginning and 760.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-16 03:52:18,691 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 142.6MB. Free memory is still 114.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 249.85ms. Allocated memory is still 142.6MB. Free memory was 105.5MB in the beginning and 94.4MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.92ms. Allocated memory is still 142.6MB. Free memory was 94.4MB in the beginning and 92.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.62ms. Allocated memory is still 142.6MB. Free memory was 92.9MB in the beginning and 91.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 317.22ms. Allocated memory is still 142.6MB. Free memory was 91.3MB in the beginning and 76.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 7288.02ms. Allocated memory was 142.6MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 76.1MB in the beginning and 763.7MB in the end (delta: -687.5MB). Peak memory consumption was 636.8MB. Max. memory is 16.1GB. * Witness Printer took 59.15ms. Allocated memory is still 1.5GB. Free memory was 763.7MB in the beginning and 760.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. 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: 177]: 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, 44 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 7.2s, OverallIterations: 33, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1464 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1464 mSDsluCounter, 4725 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1831 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 164 IncrementalHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 2894 mSDtfsCounter, 164 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 97 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31749occurred in iteration=31, InterpolantAutomatonStates: 98, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.5s AutomataMinimizationTime, 33 MinimizatonAttempts, 6176 StatesRemovedByMinimization, 29 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 731 NumberOfCodeBlocks, 731 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 698 ConstructedInterpolants, 0 QuantifiedInterpolants, 1509 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 33 InterpolantComputations, 33 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! [2023-02-16 03:52:18,712 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE