./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label47+token_ring.12.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label47+token_ring.12.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c3f3364fd5ba51681dbe9ac9cfcd9f114289823313a53e53a305bf8ae66907c7 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 20:05:35,894 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 20:05:35,896 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 20:05:35,932 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 20:05:35,932 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 20:05:35,933 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 20:05:35,934 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 20:05:35,936 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 20:05:35,937 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 20:05:35,940 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 20:05:35,941 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 20:05:35,943 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 20:05:35,943 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 20:05:35,944 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 20:05:35,945 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 20:05:35,947 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 20:05:35,948 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 20:05:35,949 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 20:05:35,950 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 20:05:35,954 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 20:05:35,955 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 20:05:35,956 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 20:05:35,956 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 20:05:35,957 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 20:05:35,958 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 20:05:35,963 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 20:05:35,963 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 20:05:35,964 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 20:05:35,964 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 20:05:35,965 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 20:05:35,966 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 20:05:35,966 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 20:05:35,968 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 20:05:35,968 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 20:05:35,969 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 20:05:35,969 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 20:05:35,969 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 20:05:35,970 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 20:05:35,970 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 20:05:35,970 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 20:05:35,970 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 20:05:35,972 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 20:05:35,973 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 20:05:35,994 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 20:05:35,994 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 20:05:35,994 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 20:05:35,994 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 20:05:35,995 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 20:05:35,995 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 20:05:35,996 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 20:05:35,996 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 20:05:35,996 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 20:05:35,996 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 20:05:35,997 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 20:05:35,997 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 20:05:35,997 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 20:05:35,997 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 20:05:35,997 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 20:05:35,997 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 20:05:35,998 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 20:05:35,998 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 20:05:35,998 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 20:05:35,998 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 20:05:35,998 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 20:05:35,998 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 20:05:35,998 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 20:05:35,999 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 20:05:35,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 20:05:35,999 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 20:05:36,007 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 20:05:36,007 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 20:05:36,008 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 20:05:36,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 20:05:36,008 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 20:05:36,008 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 20:05:36,008 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 20:05:36,008 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3f3364fd5ba51681dbe9ac9cfcd9f114289823313a53e53a305bf8ae66907c7 [2022-07-13 20:05:36,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 20:05:36,198 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 20:05:36,200 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 20:05:36,201 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 20:05:36,201 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 20:05:36,202 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label47+token_ring.12.cil-2.c [2022-07-13 20:05:36,252 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/470bf8b24/82ef670b748d48ed9f91a8c67b5249b7/FLAG941331d80 [2022-07-13 20:05:36,903 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 20:05:36,903 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.12.cil-2.c [2022-07-13 20:05:36,943 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/470bf8b24/82ef670b748d48ed9f91a8c67b5249b7/FLAG941331d80 [2022-07-13 20:05:37,238 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/470bf8b24/82ef670b748d48ed9f91a8c67b5249b7 [2022-07-13 20:05:37,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 20:05:37,241 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 20:05:37,242 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 20:05:37,242 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 20:05:37,245 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 20:05:37,245 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 08:05:37" (1/1) ... [2022-07-13 20:05:37,246 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76e4b13f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 08:05:37, skipping insertion in model container [2022-07-13 20:05:37,246 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 08:05:37" (1/1) ... [2022-07-13 20:05:37,250 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 20:05:37,401 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 20:05:38,537 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.12.cil-2.c[377612,377625] [2022-07-13 20:05:38,561 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.12.cil-2.c[383339,383352] [2022-07-13 20:05:38,745 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 20:05:38,752 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 20:05:39,364 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.12.cil-2.c[377612,377625] [2022-07-13 20:05:39,373 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.12.cil-2.c[383339,383352] [2022-07-13 20:05:39,404 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 20:05:39,508 INFO L208 MainTranslator]: Completed translation [2022-07-13 20:05:39,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 08:05:39 WrapperNode [2022-07-13 20:05:39,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 20:05:39,509 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 20:05:39,509 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 20:05:39,509 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 20:05:39,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 08:05:39" (1/1) ... [2022-07-13 20:05:39,612 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 08:05:39" (1/1) ... [2022-07-13 20:05:39,938 INFO L137 Inliner]: procedures = 68, calls = 77, calls flagged for inlining = 46, calls inlined = 46, statements flattened = 13199 [2022-07-13 20:05:39,938 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 20:05:39,939 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 20:05:39,939 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 20:05:39,939 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 20:05:39,945 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 08:05:39" (1/1) ... [2022-07-13 20:05:39,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 08:05:39" (1/1) ... [2022-07-13 20:05:40,000 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 08:05:39" (1/1) ... [2022-07-13 20:05:40,000 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 08:05:39" (1/1) ... [2022-07-13 20:05:40,177 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 08:05:39" (1/1) ... [2022-07-13 20:05:40,211 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 08:05:39" (1/1) ... [2022-07-13 20:05:40,233 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 08:05:39" (1/1) ... [2022-07-13 20:05:40,367 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 20:05:40,367 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 20:05:40,375 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 20:05:40,375 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 20:05:40,376 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 08:05:39" (1/1) ... [2022-07-13 20:05:40,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 20:05:40,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 20:05:40,427 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) [2022-07-13 20:05:40,495 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 [2022-07-13 20:05:40,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 20:05:40,529 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-07-13 20:05:40,529 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-07-13 20:05:40,530 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-07-13 20:05:40,530 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-07-13 20:05:40,530 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-07-13 20:05:40,530 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-07-13 20:05:40,530 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-07-13 20:05:40,530 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-07-13 20:05:40,530 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-07-13 20:05:40,530 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-07-13 20:05:40,531 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-07-13 20:05:40,531 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-07-13 20:05:40,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 20:05:40,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 20:05:40,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 20:05:40,706 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 20:05:40,707 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 20:05:45,434 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 20:05:45,466 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 20:05:45,467 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2022-07-13 20:05:45,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 08:05:45 BoogieIcfgContainer [2022-07-13 20:05:45,470 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 20:05:45,471 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 20:05:45,472 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 20:05:45,474 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 20:05:45,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 08:05:37" (1/3) ... [2022-07-13 20:05:45,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@261e4306 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 08:05:45, skipping insertion in model container [2022-07-13 20:05:45,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 08:05:39" (2/3) ... [2022-07-13 20:05:45,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@261e4306 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 08:05:45, skipping insertion in model container [2022-07-13 20:05:45,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 08:05:45" (3/3) ... [2022-07-13 20:05:45,476 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label47+token_ring.12.cil-2.c [2022-07-13 20:05:45,486 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 20:05:45,486 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-13 20:05:45,549 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 20:05:45,554 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@795c2d0a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@13db8508 [2022-07-13 20:05:45,554 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-13 20:05:45,571 INFO L276 IsEmpty]: Start isEmpty. Operand has 2565 states, 2530 states have (on average 1.8430830039525692) internal successors, (4663), 2533 states have internal predecessors, (4663), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-07-13 20:05:45,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-13 20:05:45,586 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 20:05:45,587 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-07-13 20:05:45,587 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 20:05:45,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 20:05:45,591 INFO L85 PathProgramCache]: Analyzing trace with hash 10619845, now seen corresponding path program 1 times [2022-07-13 20:05:45,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 20:05:45,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480586759] [2022-07-13 20:05:45,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 20:05:45,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 20:05:45,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:05:45,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 20:05:45,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:05:45,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-13 20:05:45,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:05:45,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-13 20:05:45,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:05:45,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-13 20:05:45,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:05:45,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-13 20:05:45,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:05:45,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 20:05:45,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 20:05:45,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480586759] [2022-07-13 20:05:45,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480586759] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 20:05:45,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 20:05:45,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 20:05:45,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420531016] [2022-07-13 20:05:45,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 20:05:45,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 20:05:45,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 20:05:45,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 20:05:45,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 20:05:45,971 INFO L87 Difference]: Start difference. First operand has 2565 states, 2530 states have (on average 1.8430830039525692) internal successors, (4663), 2533 states have internal predecessors, (4663), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:05:47,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 20:05:47,442 INFO L93 Difference]: Finished difference Result 5266 states and 9664 transitions. [2022-07-13 20:05:47,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 20:05:47,444 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2022-07-13 20:05:47,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 20:05:47,462 INFO L225 Difference]: With dead ends: 5266 [2022-07-13 20:05:47,462 INFO L226 Difference]: Without dead ends: 2640 [2022-07-13 20:05:47,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-13 20:05:47,471 INFO L413 NwaCegarLoop]: 4683 mSDtfsCounter, 1034 mSDsluCounter, 12465 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1058 SdHoareTripleChecker+Valid, 17148 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-13 20:05:47,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1058 Valid, 17148 Invalid, 783 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [60 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-13 20:05:47,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2640 states. [2022-07-13 20:05:47,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2640 to 2498. [2022-07-13 20:05:47,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2498 states, 2464 states have (on average 1.8262987012987013) internal successors, (4500), 2466 states have internal predecessors, (4500), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-07-13 20:05:47,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2498 states to 2498 states and 4552 transitions. [2022-07-13 20:05:47,559 INFO L78 Accepts]: Start accepts. Automaton has 2498 states and 4552 transitions. Word has length 178 [2022-07-13 20:05:47,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 20:05:47,560 INFO L495 AbstractCegarLoop]: Abstraction has 2498 states and 4552 transitions. [2022-07-13 20:05:47,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:05:47,560 INFO L276 IsEmpty]: Start isEmpty. Operand 2498 states and 4552 transitions. [2022-07-13 20:05:47,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-13 20:05:47,563 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 20:05:47,564 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 20:05:47,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 20:05:47,564 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 20:05:47,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 20:05:47,565 INFO L85 PathProgramCache]: Analyzing trace with hash -79440445, now seen corresponding path program 1 times [2022-07-13 20:05:47,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 20:05:47,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866030622] [2022-07-13 20:05:47,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 20:05:47,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 20:05:47,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:05:47,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 20:05:47,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:05:47,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-13 20:05:47,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:05:47,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-13 20:05:47,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:05:47,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-13 20:05:47,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:05:47,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-13 20:05:47,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:05:47,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 20:05:47,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 20:05:47,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866030622] [2022-07-13 20:05:47,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866030622] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 20:05:47,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 20:05:47,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 20:05:47,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945600901] [2022-07-13 20:05:47,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 20:05:47,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 20:05:47,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 20:05:47,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 20:05:47,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 20:05:47,698 INFO L87 Difference]: Start difference. First operand 2498 states and 4552 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:05:48,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 20:05:48,820 INFO L93 Difference]: Finished difference Result 3002 states and 5366 transitions. [2022-07-13 20:05:48,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 20:05:48,820 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2022-07-13 20:05:48,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 20:05:48,829 INFO L225 Difference]: With dead ends: 3002 [2022-07-13 20:05:48,830 INFO L226 Difference]: Without dead ends: 2640 [2022-07-13 20:05:48,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-13 20:05:48,832 INFO L413 NwaCegarLoop]: 4613 mSDtfsCounter, 1020 mSDsluCounter, 12262 mSDsCounter, 0 mSdLazyCounter, 722 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1044 SdHoareTripleChecker+Valid, 16875 SdHoareTripleChecker+Invalid, 782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-13 20:05:48,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1044 Valid, 16875 Invalid, 782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 722 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-13 20:05:48,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2640 states. [2022-07-13 20:05:48,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2640 to 2498. [2022-07-13 20:05:48,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2498 states, 2464 states have (on average 1.8258928571428572) internal successors, (4499), 2466 states have internal predecessors, (4499), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-07-13 20:05:48,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2498 states to 2498 states and 4551 transitions. [2022-07-13 20:05:48,884 INFO L78 Accepts]: Start accepts. Automaton has 2498 states and 4551 transitions. Word has length 178 [2022-07-13 20:05:48,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 20:05:48,884 INFO L495 AbstractCegarLoop]: Abstraction has 2498 states and 4551 transitions. [2022-07-13 20:05:48,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:05:48,885 INFO L276 IsEmpty]: Start isEmpty. Operand 2498 states and 4551 transitions. [2022-07-13 20:05:48,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-13 20:05:48,887 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 20:05:48,887 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-07-13 20:05:48,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 20:05:48,887 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 20:05:48,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 20:05:48,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1483309631, now seen corresponding path program 1 times [2022-07-13 20:05:48,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 20:05:48,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781919660] [2022-07-13 20:05:48,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 20:05:48,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 20:05:48,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:05:48,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 20:05:48,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:05:48,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-13 20:05:48,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:05:49,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-13 20:05:49,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:05:49,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-13 20:05:49,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:05:49,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-13 20:05:49,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:05:49,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 20:05:49,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 20:05:49,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781919660] [2022-07-13 20:05:49,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781919660] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 20:05:49,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 20:05:49,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 20:05:49,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075664190] [2022-07-13 20:05:49,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 20:05:49,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 20:05:49,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 20:05:49,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 20:05:49,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 20:05:49,035 INFO L87 Difference]: Start difference. First operand 2498 states and 4551 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:05:51,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 20:05:51,472 INFO L93 Difference]: Finished difference Result 3514 states and 6198 transitions. [2022-07-13 20:05:51,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-13 20:05:51,473 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2022-07-13 20:05:51,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 20:05:51,482 INFO L225 Difference]: With dead ends: 3514 [2022-07-13 20:05:51,482 INFO L226 Difference]: Without dead ends: 3157 [2022-07-13 20:05:51,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-07-13 20:05:51,485 INFO L413 NwaCegarLoop]: 4665 mSDtfsCounter, 5509 mSDsluCounter, 12816 mSDsCounter, 0 mSdLazyCounter, 2014 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5528 SdHoareTripleChecker+Valid, 17481 SdHoareTripleChecker+Invalid, 2130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 2014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-13 20:05:51,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5528 Valid, 17481 Invalid, 2130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 2014 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-13 20:05:51,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3157 states. [2022-07-13 20:05:51,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3157 to 2874. [2022-07-13 20:05:51,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2874 states, 2812 states have (on average 1.7976529160739687) internal successors, (5055), 2815 states have internal predecessors, (5055), 47 states have call successors, (47), 12 states have call predecessors, (47), 13 states have return successors, (50), 47 states have call predecessors, (50), 47 states have call successors, (50) [2022-07-13 20:05:51,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2874 states to 2874 states and 5152 transitions. [2022-07-13 20:05:51,555 INFO L78 Accepts]: Start accepts. Automaton has 2874 states and 5152 transitions. Word has length 178 [2022-07-13 20:05:51,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 20:05:51,555 INFO L495 AbstractCegarLoop]: Abstraction has 2874 states and 5152 transitions. [2022-07-13 20:05:51,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:05:51,555 INFO L276 IsEmpty]: Start isEmpty. Operand 2874 states and 5152 transitions. [2022-07-13 20:05:51,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-13 20:05:51,557 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 20:05:51,557 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-07-13 20:05:51,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 20:05:51,558 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 20:05:51,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 20:05:51,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1935672389, now seen corresponding path program 1 times [2022-07-13 20:05:51,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 20:05:51,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209861361] [2022-07-13 20:05:51,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 20:05:51,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 20:05:51,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:05:51,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 20:05:51,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:05:51,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-13 20:05:51,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:05:51,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-13 20:05:51,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:05:51,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-13 20:05:51,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:05:51,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-13 20:05:51,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:05:51,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 20:05:51,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 20:05:51,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209861361] [2022-07-13 20:05:51,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209861361] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 20:05:51,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 20:05:51,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 20:05:51,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180223471] [2022-07-13 20:05:51,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 20:05:51,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 20:05:51,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 20:05:51,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 20:05:51,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 20:05:51,674 INFO L87 Difference]: Start difference. First operand 2874 states and 5152 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:05:54,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 20:05:54,640 INFO L93 Difference]: Finished difference Result 4427 states and 7672 transitions. [2022-07-13 20:05:54,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-13 20:05:54,641 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2022-07-13 20:05:54,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 20:05:54,652 INFO L225 Difference]: With dead ends: 4427 [2022-07-13 20:05:54,652 INFO L226 Difference]: Without dead ends: 3694 [2022-07-13 20:05:54,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-13 20:05:54,660 INFO L413 NwaCegarLoop]: 4964 mSDtfsCounter, 5539 mSDsluCounter, 17701 mSDsCounter, 0 mSdLazyCounter, 3126 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5558 SdHoareTripleChecker+Valid, 22665 SdHoareTripleChecker+Invalid, 3202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 3126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-13 20:05:54,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5558 Valid, 22665 Invalid, 3202 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [76 Valid, 3126 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-13 20:05:54,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3694 states. [2022-07-13 20:05:54,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3694 to 3223. [2022-07-13 20:05:54,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3223 states, 3133 states have (on average 1.7736993297159271) internal successors, (5557), 3137 states have internal predecessors, (5557), 68 states have call successors, (68), 18 states have call predecessors, (68), 20 states have return successors, (73), 69 states have call predecessors, (73), 68 states have call successors, (73) [2022-07-13 20:05:54,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3223 states to 3223 states and 5698 transitions. [2022-07-13 20:05:54,760 INFO L78 Accepts]: Start accepts. Automaton has 3223 states and 5698 transitions. Word has length 178 [2022-07-13 20:05:54,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 20:05:54,760 INFO L495 AbstractCegarLoop]: Abstraction has 3223 states and 5698 transitions. [2022-07-13 20:05:54,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:05:54,765 INFO L276 IsEmpty]: Start isEmpty. Operand 3223 states and 5698 transitions. [2022-07-13 20:05:54,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-13 20:05:54,770 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 20:05:54,770 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-07-13 20:05:54,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 20:05:54,771 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 20:05:54,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 20:05:54,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1324403331, now seen corresponding path program 1 times [2022-07-13 20:05:54,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 20:05:54,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692187666] [2022-07-13 20:05:54,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 20:05:54,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 20:05:54,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:05:54,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 20:05:54,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:05:54,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-13 20:05:54,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:05:54,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-13 20:05:54,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:05:54,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-13 20:05:54,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:05:54,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-13 20:05:54,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:05:54,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 20:05:54,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 20:05:54,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692187666] [2022-07-13 20:05:54,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692187666] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 20:05:54,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 20:05:54,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 20:05:54,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962008216] [2022-07-13 20:05:54,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 20:05:54,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 20:05:54,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 20:05:54,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 20:05:54,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 20:05:54,907 INFO L87 Difference]: Start difference. First operand 3223 states and 5698 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:05:57,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 20:05:57,884 INFO L93 Difference]: Finished difference Result 5773 states and 9826 transitions. [2022-07-13 20:05:57,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-13 20:05:57,885 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2022-07-13 20:05:57,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 20:05:57,901 INFO L225 Difference]: With dead ends: 5773 [2022-07-13 20:05:57,902 INFO L226 Difference]: Without dead ends: 4691 [2022-07-13 20:05:57,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-13 20:05:57,906 INFO L413 NwaCegarLoop]: 4709 mSDtfsCounter, 5648 mSDsluCounter, 17063 mSDsCounter, 0 mSdLazyCounter, 2778 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5667 SdHoareTripleChecker+Valid, 21772 SdHoareTripleChecker+Invalid, 2893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 2778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-13 20:05:57,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5667 Valid, 21772 Invalid, 2893 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [115 Valid, 2778 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-13 20:05:57,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4691 states. [2022-07-13 20:05:58,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4691 to 3922. [2022-07-13 20:05:58,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3922 states, 3776 states have (on average 1.7378177966101696) internal successors, (6562), 3782 states have internal predecessors, (6562), 110 states have call successors, (110), 30 states have call predecessors, (110), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2022-07-13 20:05:58,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3922 states to 3922 states and 6795 transitions. [2022-07-13 20:05:58,068 INFO L78 Accepts]: Start accepts. Automaton has 3922 states and 6795 transitions. Word has length 178 [2022-07-13 20:05:58,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 20:05:58,068 INFO L495 AbstractCegarLoop]: Abstraction has 3922 states and 6795 transitions. [2022-07-13 20:05:58,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:05:58,079 INFO L276 IsEmpty]: Start isEmpty. Operand 3922 states and 6795 transitions. [2022-07-13 20:05:58,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-13 20:05:58,081 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 20:05:58,082 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-07-13 20:05:58,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-13 20:05:58,082 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 20:05:58,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 20:05:58,083 INFO L85 PathProgramCache]: Analyzing trace with hash -80788347, now seen corresponding path program 1 times [2022-07-13 20:05:58,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 20:05:58,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494888966] [2022-07-13 20:05:58,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 20:05:58,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 20:05:58,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:05:58,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 20:05:58,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:05:58,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-13 20:05:58,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:05:58,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-13 20:05:58,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:05:58,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-13 20:05:58,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:05:58,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-13 20:05:58,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:05:58,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 20:05:58,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 20:05:58,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494888966] [2022-07-13 20:05:58,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494888966] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 20:05:58,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 20:05:58,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 20:05:58,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765297253] [2022-07-13 20:05:58,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 20:05:58,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 20:05:58,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 20:05:58,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 20:05:58,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 20:05:58,231 INFO L87 Difference]: Start difference. First operand 3922 states and 6795 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:06:01,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 20:06:01,357 INFO L93 Difference]: Finished difference Result 8360 states and 13939 transitions. [2022-07-13 20:06:01,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-13 20:06:01,358 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2022-07-13 20:06:01,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 20:06:01,382 INFO L225 Difference]: With dead ends: 8360 [2022-07-13 20:06:01,383 INFO L226 Difference]: Without dead ends: 6579 [2022-07-13 20:06:01,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-13 20:06:01,391 INFO L413 NwaCegarLoop]: 4952 mSDtfsCounter, 5534 mSDsluCounter, 17701 mSDsCounter, 0 mSdLazyCounter, 3125 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5553 SdHoareTripleChecker+Valid, 22653 SdHoareTripleChecker+Invalid, 3206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 3125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-13 20:06:01,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5553 Valid, 22653 Invalid, 3206 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [81 Valid, 3125 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-07-13 20:06:01,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6579 states. [2022-07-13 20:06:01,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6579 to 5321. [2022-07-13 20:06:01,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5321 states, 5063 states have (on average 1.693067351372704) internal successors, (8572), 5073 states have internal predecessors, (8572), 194 states have call successors, (194), 54 states have call predecessors, (194), 62 states have return successors, (229), 201 states have call predecessors, (229), 194 states have call successors, (229) [2022-07-13 20:06:01,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5321 states to 5321 states and 8995 transitions. [2022-07-13 20:06:01,580 INFO L78 Accepts]: Start accepts. Automaton has 5321 states and 8995 transitions. Word has length 178 [2022-07-13 20:06:01,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 20:06:01,580 INFO L495 AbstractCegarLoop]: Abstraction has 5321 states and 8995 transitions. [2022-07-13 20:06:01,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:06:01,581 INFO L276 IsEmpty]: Start isEmpty. Operand 5321 states and 8995 transitions. [2022-07-13 20:06:01,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-13 20:06:01,583 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 20:06:01,584 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-07-13 20:06:01,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-13 20:06:01,584 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 20:06:01,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 20:06:01,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1813545539, now seen corresponding path program 1 times [2022-07-13 20:06:01,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 20:06:01,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898643129] [2022-07-13 20:06:01,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 20:06:01,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 20:06:01,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:01,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 20:06:01,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:01,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-13 20:06:01,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:01,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-13 20:06:01,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:01,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-13 20:06:01,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:01,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-13 20:06:01,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:01,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 20:06:01,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 20:06:01,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898643129] [2022-07-13 20:06:01,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898643129] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 20:06:01,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 20:06:01,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 20:06:01,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265169266] [2022-07-13 20:06:01,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 20:06:01,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 20:06:01,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 20:06:01,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 20:06:01,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 20:06:01,719 INFO L87 Difference]: Start difference. First operand 5321 states and 8995 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:06:04,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 20:06:04,902 INFO L93 Difference]: Finished difference Result 13526 states and 22169 transitions. [2022-07-13 20:06:04,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-13 20:06:04,904 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2022-07-13 20:06:04,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 20:06:04,944 INFO L225 Difference]: With dead ends: 13526 [2022-07-13 20:06:04,944 INFO L226 Difference]: Without dead ends: 10346 [2022-07-13 20:06:04,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-13 20:06:04,956 INFO L413 NwaCegarLoop]: 4944 mSDtfsCounter, 5529 mSDsluCounter, 17701 mSDsCounter, 0 mSdLazyCounter, 3105 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5548 SdHoareTripleChecker+Valid, 22645 SdHoareTripleChecker+Invalid, 3187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 3105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-13 20:06:04,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5548 Valid, 22645 Invalid, 3187 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [82 Valid, 3105 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-13 20:06:04,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10346 states. [2022-07-13 20:06:05,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10346 to 8133. [2022-07-13 20:06:05,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8133 states, 7651 states have (on average 1.6489347797673506) internal successors, (12616), 7669 states have internal predecessors, (12616), 362 states have call successors, (362), 102 states have call predecessors, (362), 118 states have return successors, (459), 377 states have call predecessors, (459), 362 states have call successors, (459) [2022-07-13 20:06:05,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8133 states to 8133 states and 13437 transitions. [2022-07-13 20:06:05,318 INFO L78 Accepts]: Start accepts. Automaton has 8133 states and 13437 transitions. Word has length 178 [2022-07-13 20:06:05,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 20:06:05,319 INFO L495 AbstractCegarLoop]: Abstraction has 8133 states and 13437 transitions. [2022-07-13 20:06:05,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:06:05,319 INFO L276 IsEmpty]: Start isEmpty. Operand 8133 states and 13437 transitions. [2022-07-13 20:06:05,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-13 20:06:05,323 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 20:06:05,323 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-07-13 20:06:05,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-13 20:06:05,324 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 20:06:05,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 20:06:05,327 INFO L85 PathProgramCache]: Analyzing trace with hash 890378113, now seen corresponding path program 1 times [2022-07-13 20:06:05,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 20:06:05,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135880038] [2022-07-13 20:06:05,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 20:06:05,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 20:06:05,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:05,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 20:06:05,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:05,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-13 20:06:05,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:05,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-13 20:06:05,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:05,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-13 20:06:05,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:05,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-13 20:06:05,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:05,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 20:06:05,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 20:06:05,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135880038] [2022-07-13 20:06:05,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135880038] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 20:06:05,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 20:06:05,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 20:06:05,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96749628] [2022-07-13 20:06:05,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 20:06:05,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 20:06:05,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 20:06:05,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 20:06:05,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 20:06:05,458 INFO L87 Difference]: Start difference. First operand 8133 states and 13437 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:06:09,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 20:06:09,152 INFO L93 Difference]: Finished difference Result 23876 states and 38721 transitions. [2022-07-13 20:06:09,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-13 20:06:09,153 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2022-07-13 20:06:09,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 20:06:09,200 INFO L225 Difference]: With dead ends: 23876 [2022-07-13 20:06:09,200 INFO L226 Difference]: Without dead ends: 17884 [2022-07-13 20:06:09,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-13 20:06:09,219 INFO L413 NwaCegarLoop]: 4939 mSDtfsCounter, 5528 mSDsluCounter, 17701 mSDsCounter, 0 mSdLazyCounter, 3097 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5547 SdHoareTripleChecker+Valid, 22640 SdHoareTripleChecker+Invalid, 3179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 3097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-13 20:06:09,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5547 Valid, 22640 Invalid, 3179 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [82 Valid, 3097 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-07-13 20:06:09,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17884 states. [2022-07-13 20:06:09,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17884 to 13770. [2022-07-13 20:06:09,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13770 states, 12840 states have (on average 1.6138629283489097) internal successors, (20722), 12874 states have internal predecessors, (20722), 698 states have call successors, (698), 198 states have call predecessors, (698), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2022-07-13 20:06:10,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13770 states to 13770 states and 22393 transitions. [2022-07-13 20:06:10,008 INFO L78 Accepts]: Start accepts. Automaton has 13770 states and 22393 transitions. Word has length 178 [2022-07-13 20:06:10,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 20:06:10,009 INFO L495 AbstractCegarLoop]: Abstraction has 13770 states and 22393 transitions. [2022-07-13 20:06:10,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:06:10,009 INFO L276 IsEmpty]: Start isEmpty. Operand 13770 states and 22393 transitions. [2022-07-13 20:06:10,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-13 20:06:10,016 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 20:06:10,017 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-07-13 20:06:10,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-13 20:06:10,017 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 20:06:10,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 20:06:10,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1276240515, now seen corresponding path program 1 times [2022-07-13 20:06:10,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 20:06:10,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835385904] [2022-07-13 20:06:10,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 20:06:10,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 20:06:10,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:10,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 20:06:10,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:10,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-13 20:06:10,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:10,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-13 20:06:10,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:10,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-13 20:06:10,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:10,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-13 20:06:10,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:10,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 20:06:10,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 20:06:10,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835385904] [2022-07-13 20:06:10,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835385904] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 20:06:10,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 20:06:10,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 20:06:10,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306479521] [2022-07-13 20:06:10,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 20:06:10,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 20:06:10,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 20:06:10,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 20:06:10,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-13 20:06:10,149 INFO L87 Difference]: Start difference. First operand 13770 states and 22393 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:06:12,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 20:06:12,713 INFO L93 Difference]: Finished difference Result 29766 states and 48386 transitions. [2022-07-13 20:06:12,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 20:06:12,714 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2022-07-13 20:06:12,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 20:06:12,755 INFO L225 Difference]: With dead ends: 29766 [2022-07-13 20:06:12,755 INFO L226 Difference]: Without dead ends: 18137 [2022-07-13 20:06:12,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-07-13 20:06:12,783 INFO L413 NwaCegarLoop]: 4589 mSDtfsCounter, 5079 mSDsluCounter, 16760 mSDsCounter, 0 mSdLazyCounter, 1475 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5099 SdHoareTripleChecker+Valid, 21349 SdHoareTripleChecker+Invalid, 1560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-13 20:06:12,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5099 Valid, 21349 Invalid, 1560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1475 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-13 20:06:12,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18137 states. [2022-07-13 20:06:13,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18137 to 13770. [2022-07-13 20:06:13,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13770 states, 12840 states have (on average 1.6112928348909656) internal successors, (20689), 12874 states have internal predecessors, (20689), 698 states have call successors, (698), 198 states have call predecessors, (698), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2022-07-13 20:06:13,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13770 states to 13770 states and 22360 transitions. [2022-07-13 20:06:13,509 INFO L78 Accepts]: Start accepts. Automaton has 13770 states and 22360 transitions. Word has length 178 [2022-07-13 20:06:13,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 20:06:13,509 INFO L495 AbstractCegarLoop]: Abstraction has 13770 states and 22360 transitions. [2022-07-13 20:06:13,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:06:13,509 INFO L276 IsEmpty]: Start isEmpty. Operand 13770 states and 22360 transitions. [2022-07-13 20:06:13,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-13 20:06:13,517 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 20:06:13,517 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-07-13 20:06:13,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-13 20:06:13,518 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 20:06:13,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 20:06:13,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1011593025, now seen corresponding path program 1 times [2022-07-13 20:06:13,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 20:06:13,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195756260] [2022-07-13 20:06:13,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 20:06:13,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 20:06:13,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:13,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 20:06:13,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:13,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-13 20:06:13,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:13,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-13 20:06:13,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:13,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-13 20:06:13,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:13,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-13 20:06:13,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:13,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 20:06:13,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 20:06:13,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195756260] [2022-07-13 20:06:13,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195756260] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 20:06:13,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 20:06:13,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 20:06:13,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518389041] [2022-07-13 20:06:13,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 20:06:13,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 20:06:13,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 20:06:13,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 20:06:13,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 20:06:13,654 INFO L87 Difference]: Start difference. First operand 13770 states and 22360 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:06:18,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 20:06:18,382 INFO L93 Difference]: Finished difference Result 44541 states and 71783 transitions. [2022-07-13 20:06:18,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-13 20:06:18,382 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2022-07-13 20:06:18,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 20:06:18,465 INFO L225 Difference]: With dead ends: 44541 [2022-07-13 20:06:18,465 INFO L226 Difference]: Without dead ends: 32912 [2022-07-13 20:06:18,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-13 20:06:18,493 INFO L413 NwaCegarLoop]: 4928 mSDtfsCounter, 5520 mSDsluCounter, 17701 mSDsCounter, 0 mSdLazyCounter, 3070 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5539 SdHoareTripleChecker+Valid, 22629 SdHoareTripleChecker+Invalid, 3152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 3070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-13 20:06:18,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5539 Valid, 22629 Invalid, 3152 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [82 Valid, 3070 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-13 20:06:18,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32912 states. [2022-07-13 20:06:19,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32912 to 25108. [2022-07-13 20:06:20,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25108 states, 23282 states have (on average 1.587020015462589) internal successors, (36949), 23348 states have internal predecessors, (36949), 1370 states have call successors, (1370), 390 states have call predecessors, (1370), 454 states have return successors, (2163), 1433 states have call predecessors, (2163), 1370 states have call successors, (2163) [2022-07-13 20:06:20,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25108 states to 25108 states and 40482 transitions. [2022-07-13 20:06:20,072 INFO L78 Accepts]: Start accepts. Automaton has 25108 states and 40482 transitions. Word has length 178 [2022-07-13 20:06:20,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 20:06:20,072 INFO L495 AbstractCegarLoop]: Abstraction has 25108 states and 40482 transitions. [2022-07-13 20:06:20,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:06:20,073 INFO L276 IsEmpty]: Start isEmpty. Operand 25108 states and 40482 transitions. [2022-07-13 20:06:20,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-13 20:06:20,084 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 20:06:20,084 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-07-13 20:06:20,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-13 20:06:20,085 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 20:06:20,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 20:06:20,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1352248637, now seen corresponding path program 1 times [2022-07-13 20:06:20,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 20:06:20,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786295662] [2022-07-13 20:06:20,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 20:06:20,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 20:06:20,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:20,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 20:06:20,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:20,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-13 20:06:20,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:20,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-13 20:06:20,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:20,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-13 20:06:20,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:20,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-13 20:06:20,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:20,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 20:06:20,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 20:06:20,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786295662] [2022-07-13 20:06:20,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786295662] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 20:06:20,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 20:06:20,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 20:06:20,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281005117] [2022-07-13 20:06:20,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 20:06:20,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 20:06:20,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 20:06:20,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 20:06:20,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 20:06:20,194 INFO L87 Difference]: Start difference. First operand 25108 states and 40482 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:06:27,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 20:06:27,405 INFO L93 Difference]: Finished difference Result 85941 states and 138783 transitions. [2022-07-13 20:06:27,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-13 20:06:27,405 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2022-07-13 20:06:27,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 20:06:27,572 INFO L225 Difference]: With dead ends: 85941 [2022-07-13 20:06:27,572 INFO L226 Difference]: Without dead ends: 62974 [2022-07-13 20:06:27,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-13 20:06:27,630 INFO L413 NwaCegarLoop]: 4923 mSDtfsCounter, 5519 mSDsluCounter, 17701 mSDsCounter, 0 mSdLazyCounter, 3062 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5538 SdHoareTripleChecker+Valid, 22624 SdHoareTripleChecker+Invalid, 3144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 3062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-13 20:06:27,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5538 Valid, 22624 Invalid, 3144 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [82 Valid, 3062 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-13 20:06:27,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62974 states. [2022-07-13 20:06:30,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62974 to 47845. [2022-07-13 20:06:30,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47845 states, 44227 states have (on average 1.5727722884211002) internal successors, (69559), 44357 states have internal predecessors, (69559), 2714 states have call successors, (2714), 774 states have call predecessors, (2714), 902 states have return successors, (5029), 2841 states have call predecessors, (5029), 2714 states have call successors, (5029) [2022-07-13 20:06:30,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47845 states to 47845 states and 77302 transitions. [2022-07-13 20:06:30,944 INFO L78 Accepts]: Start accepts. Automaton has 47845 states and 77302 transitions. Word has length 178 [2022-07-13 20:06:30,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 20:06:30,944 INFO L495 AbstractCegarLoop]: Abstraction has 47845 states and 77302 transitions. [2022-07-13 20:06:30,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:06:30,945 INFO L276 IsEmpty]: Start isEmpty. Operand 47845 states and 77302 transitions. [2022-07-13 20:06:30,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-13 20:06:30,966 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 20:06:30,966 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-07-13 20:06:30,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-13 20:06:30,966 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 20:06:30,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 20:06:30,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1619539713, now seen corresponding path program 1 times [2022-07-13 20:06:30,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 20:06:30,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092630907] [2022-07-13 20:06:30,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 20:06:30,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 20:06:30,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:31,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 20:06:31,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:31,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-13 20:06:31,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:31,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-13 20:06:31,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:31,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-13 20:06:31,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:31,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-13 20:06:31,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:31,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 20:06:31,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 20:06:31,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092630907] [2022-07-13 20:06:31,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092630907] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 20:06:31,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 20:06:31,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 20:06:31,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972542058] [2022-07-13 20:06:31,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 20:06:31,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 20:06:31,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 20:06:31,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 20:06:31,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 20:06:31,107 INFO L87 Difference]: Start difference. First operand 47845 states and 77302 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:06:43,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 20:06:43,286 INFO L93 Difference]: Finished difference Result 168740 states and 274629 transitions. [2022-07-13 20:06:43,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-13 20:06:43,287 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2022-07-13 20:06:43,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 20:06:43,682 INFO L225 Difference]: With dead ends: 168740 [2022-07-13 20:06:43,682 INFO L226 Difference]: Without dead ends: 123036 [2022-07-13 20:06:43,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-13 20:06:43,800 INFO L413 NwaCegarLoop]: 4683 mSDtfsCounter, 5618 mSDsluCounter, 17063 mSDsCounter, 0 mSdLazyCounter, 2728 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5637 SdHoareTripleChecker+Valid, 21746 SdHoareTripleChecker+Invalid, 2846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 2728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-13 20:06:43,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5637 Valid, 21746 Invalid, 2846 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [118 Valid, 2728 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-13 20:06:43,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123036 states. [2022-07-13 20:06:50,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123036 to 93446. [2022-07-13 20:06:50,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93446 states, 86244 states have (on average 1.5649668382728075) internal successors, (134969), 86502 states have internal predecessors, (134969), 5402 states have call successors, (5402), 1542 states have call predecessors, (5402), 1798 states have return successors, (12219), 5657 states have call predecessors, (12219), 5402 states have call successors, (12219) [2022-07-13 20:06:51,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93446 states to 93446 states and 152590 transitions. [2022-07-13 20:06:51,049 INFO L78 Accepts]: Start accepts. Automaton has 93446 states and 152590 transitions. Word has length 178 [2022-07-13 20:06:51,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 20:06:51,050 INFO L495 AbstractCegarLoop]: Abstraction has 93446 states and 152590 transitions. [2022-07-13 20:06:51,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:06:51,050 INFO L276 IsEmpty]: Start isEmpty. Operand 93446 states and 152590 transitions. [2022-07-13 20:06:51,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-13 20:06:51,086 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 20:06:51,086 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-07-13 20:06:51,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-13 20:06:51,086 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 20:06:51,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 20:06:51,087 INFO L85 PathProgramCache]: Analyzing trace with hash -778448125, now seen corresponding path program 1 times [2022-07-13 20:06:51,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 20:06:51,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286764652] [2022-07-13 20:06:51,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 20:06:51,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 20:06:51,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:51,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 20:06:51,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:51,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-13 20:06:51,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:51,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-13 20:06:51,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:51,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-13 20:06:51,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:51,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-13 20:06:51,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 20:06:51,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 20:06:51,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 20:06:51,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286764652] [2022-07-13 20:06:51,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286764652] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 20:06:51,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 20:06:51,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 20:06:51,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837048966] [2022-07-13 20:06:51,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 20:06:51,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 20:06:51,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 20:06:51,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 20:06:51,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-13 20:06:51,202 INFO L87 Difference]: Start difference. First operand 93446 states and 152590 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-13 20:07:04,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 20:07:04,007 INFO L93 Difference]: Finished difference Result 216214 states and 359849 transitions. [2022-07-13 20:07:04,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 20:07:04,008 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2022-07-13 20:07:04,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 20:07:04,643 INFO L225 Difference]: With dead ends: 216214 [2022-07-13 20:07:04,643 INFO L226 Difference]: Without dead ends: 124909 [2022-07-13 20:07:04,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-07-13 20:07:04,869 INFO L413 NwaCegarLoop]: 4574 mSDtfsCounter, 5082 mSDsluCounter, 16760 mSDsCounter, 0 mSdLazyCounter, 1439 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5102 SdHoareTripleChecker+Valid, 21334 SdHoareTripleChecker+Invalid, 1527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-13 20:07:04,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5102 Valid, 21334 Invalid, 1527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1439 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-13 20:07:05,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124909 states.