./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label43+token_ring.12.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 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_label43+token_ring.12.cil-1.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 75bb47d196b7c0cfa74650bf56de75ff6699dc5c2700eb5e9ba9836562c6aee4 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 19:20:46,365 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 19:20:46,366 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 19:20:46,396 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 19:20:46,398 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 19:20:46,399 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 19:20:46,403 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 19:20:46,407 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 19:20:46,409 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 19:20:46,413 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 19:20:46,413 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 19:20:46,414 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 19:20:46,414 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 19:20:46,415 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 19:20:46,416 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 19:20:46,416 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 19:20:46,417 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 19:20:46,418 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 19:20:46,419 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 19:20:46,422 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 19:20:46,425 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 19:20:46,426 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 19:20:46,427 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 19:20:46,428 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 19:20:46,428 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 19:20:46,430 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 19:20:46,432 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 19:20:46,432 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 19:20:46,433 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 19:20:46,433 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 19:20:46,434 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 19:20:46,434 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 19:20:46,435 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 19:20:46,436 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 19:20:46,436 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 19:20:46,437 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 19:20:46,437 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 19:20:46,438 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 19:20:46,438 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 19:20:46,438 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 19:20:46,439 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 19:20:46,440 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 19:20:46,441 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 19:20:46,465 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 19:20:46,466 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 19:20:46,466 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 19:20:46,466 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 19:20:46,466 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 19:20:46,467 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 19:20:46,467 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 19:20:46,467 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 19:20:46,467 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 19:20:46,468 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 19:20:46,468 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 19:20:46,468 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 19:20:46,468 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 19:20:46,469 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 19:20:46,469 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 19:20:46,469 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 19:20:46,469 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 19:20:46,469 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 19:20:46,469 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 19:20:46,470 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 19:20:46,471 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 19:20:46,471 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 19:20:46,471 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 19:20:46,471 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 19:20:46,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 19:20:46,471 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 19:20:46,472 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 19:20:46,472 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 19:20:46,472 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 19:20:46,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 19:20:46,472 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 19:20:46,472 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 19:20:46,472 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 19:20:46,473 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75bb47d196b7c0cfa74650bf56de75ff6699dc5c2700eb5e9ba9836562c6aee4 [2022-07-19 19:20:46,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 19:20:46,695 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 19:20:46,696 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 19:20:46,697 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 19:20:46,698 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 19:20:46,699 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label43+token_ring.12.cil-1.c [2022-07-19 19:20:46,738 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c754afbf/e05143444d644ee389b226ef765244e3/FLAG875514f22 [2022-07-19 19:20:47,481 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 19:20:47,482 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label43+token_ring.12.cil-1.c [2022-07-19 19:20:47,529 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c754afbf/e05143444d644ee389b226ef765244e3/FLAG875514f22 [2022-07-19 19:20:47,774 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c754afbf/e05143444d644ee389b226ef765244e3 [2022-07-19 19:20:47,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 19:20:47,778 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 19:20:47,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 19:20:47,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 19:20:47,782 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 19:20:47,783 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 07:20:47" (1/1) ... [2022-07-19 19:20:47,784 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c35530a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:20:47, skipping insertion in model container [2022-07-19 19:20:47,785 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 07:20:47" (1/1) ... [2022-07-19 19:20:47,790 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 19:20:47,926 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 19:20:49,125 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_label43+token_ring.12.cil-1.c[381679,381692] [2022-07-19 19:20:49,148 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_label43+token_ring.12.cil-1.c[383339,383352] [2022-07-19 19:20:49,370 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 19:20:49,377 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 19:20:49,931 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_label43+token_ring.12.cil-1.c[381679,381692] [2022-07-19 19:20:49,935 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_label43+token_ring.12.cil-1.c[383339,383352] [2022-07-19 19:20:49,966 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 19:20:50,008 INFO L208 MainTranslator]: Completed translation [2022-07-19 19:20:50,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:20:50 WrapperNode [2022-07-19 19:20:50,008 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 19:20:50,009 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 19:20:50,009 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 19:20:50,010 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 19:20:50,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:20:50" (1/1) ... [2022-07-19 19:20:50,117 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:20:50" (1/1) ... [2022-07-19 19:20:50,324 INFO L137 Inliner]: procedures = 68, calls = 78, calls flagged for inlining = 45, calls inlined = 45, statements flattened = 13204 [2022-07-19 19:20:50,325 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 19:20:50,325 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 19:20:50,326 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 19:20:50,326 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 19:20:50,332 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:20:50" (1/1) ... [2022-07-19 19:20:50,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:20:50" (1/1) ... [2022-07-19 19:20:50,497 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:20:50" (1/1) ... [2022-07-19 19:20:50,498 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:20:50" (1/1) ... [2022-07-19 19:20:50,583 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:20:50" (1/1) ... [2022-07-19 19:20:50,684 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:20:50" (1/1) ... [2022-07-19 19:20:50,702 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:20:50" (1/1) ... [2022-07-19 19:20:50,739 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 19:20:50,740 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 19:20:50,740 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 19:20:50,740 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 19:20:50,741 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:20:50" (1/1) ... [2022-07-19 19:20:50,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 19:20:50,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 19:20:50,765 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) [2022-07-19 19:20:50,768 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 [2022-07-19 19:20:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 19:20:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-07-19 19:20:50,788 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-07-19 19:20:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-07-19 19:20:50,789 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-07-19 19:20:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-07-19 19:20:50,789 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-07-19 19:20:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure error [2022-07-19 19:20:50,789 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2022-07-19 19:20:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-07-19 19:20:50,789 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-07-19 19:20:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-07-19 19:20:50,789 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-07-19 19:20:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-07-19 19:20:50,789 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-07-19 19:20:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 19:20:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 19:20:50,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 19:20:50,880 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 19:20:50,882 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 19:20:56,004 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 19:20:56,024 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 19:20:56,024 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2022-07-19 19:20:56,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 07:20:56 BoogieIcfgContainer [2022-07-19 19:20:56,028 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 19:20:56,030 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 19:20:56,030 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 19:20:56,032 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 19:20:56,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 07:20:47" (1/3) ... [2022-07-19 19:20:56,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c3de8e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 07:20:56, skipping insertion in model container [2022-07-19 19:20:56,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:20:50" (2/3) ... [2022-07-19 19:20:56,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c3de8e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 07:20:56, skipping insertion in model container [2022-07-19 19:20:56,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 07:20:56" (3/3) ... [2022-07-19 19:20:56,035 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label43+token_ring.12.cil-1.c [2022-07-19 19:20:56,045 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 19:20:56,046 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-19 19:20:56,109 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 19:20:56,113 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@682556ff, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7842d65d [2022-07-19 19:20:56,114 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-19 19:20:56,123 INFO L276 IsEmpty]: Start isEmpty. Operand has 2573 states, 2535 states have (on average 1.8433925049309665) internal successors, (4673), 2540 states have internal predecessors, (4673), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2022-07-19 19:20:56,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-07-19 19:20:56,153 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 19:20:56,154 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, 1] [2022-07-19 19:20:56,154 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 19:20:56,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 19:20:56,158 INFO L85 PathProgramCache]: Analyzing trace with hash -354915978, now seen corresponding path program 1 times [2022-07-19 19:20:56,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 19:20:56,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328134174] [2022-07-19 19:20:56,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 19:20:56,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 19:20:56,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:20:56,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 19:20:56,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:20:56,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-19 19:20:56,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:20:56,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-19 19:20:56,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:20:56,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-19 19:20:56,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:20:56,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-19 19:20:56,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:20:56,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 19:20:56,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 19:20:56,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328134174] [2022-07-19 19:20:56,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328134174] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 19:20:56,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 19:20:56,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 19:20:56,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332371784] [2022-07-19 19:20:56,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 19:20:56,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 19:20:56,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 19:20:56,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 19:20:56,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 19:20:56,508 INFO L87 Difference]: Start difference. First operand has 2573 states, 2535 states have (on average 1.8433925049309665) internal successors, (4673), 2540 states have internal predecessors, (4673), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) 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, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:20:57,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 19:20:57,922 INFO L93 Difference]: Finished difference Result 5281 states and 9692 transitions. [2022-07-19 19:20:57,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 19:20:57,927 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, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2022-07-19 19:20:57,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 19:20:57,958 INFO L225 Difference]: With dead ends: 5281 [2022-07-19 19:20:57,971 INFO L226 Difference]: Without dead ends: 2647 [2022-07-19 19:20:57,982 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 [2022-07-19 19:20:57,997 INFO L413 NwaCegarLoop]: 4695 mSDtfsCounter, 1048 mSDsluCounter, 12483 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1072 SdHoareTripleChecker+Valid, 17178 SdHoareTripleChecker+Invalid, 787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 19:20:57,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1072 Valid, 17178 Invalid, 787 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [64 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 19:20:58,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2647 states. [2022-07-19 19:20:58,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2647 to 2505. [2022-07-19 19:20:58,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2505 states, 2469 states have (on average 1.8266504657756177) internal successors, (4510), 2472 states have internal predecessors, (4510), 28 states have call successors, (28), 7 states have call predecessors, (28), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-07-19 19:20:58,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2505 states to 2505 states and 4564 transitions. [2022-07-19 19:20:58,133 INFO L78 Accepts]: Start accepts. Automaton has 2505 states and 4564 transitions. Word has length 179 [2022-07-19 19:20:58,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 19:20:58,133 INFO L495 AbstractCegarLoop]: Abstraction has 2505 states and 4564 transitions. [2022-07-19 19:20:58,133 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, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:20:58,134 INFO L276 IsEmpty]: Start isEmpty. Operand 2505 states and 4564 transitions. [2022-07-19 19:20:58,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-07-19 19:20:58,137 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 19:20:58,137 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, 1] [2022-07-19 19:20:58,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 19:20:58,137 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 19:20:58,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 19:20:58,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1148182328, now seen corresponding path program 1 times [2022-07-19 19:20:58,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 19:20:58,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487443173] [2022-07-19 19:20:58,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 19:20:58,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 19:20:58,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:20:58,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 19:20:58,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:20:58,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-19 19:20:58,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:20:58,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-19 19:20:58,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:20:58,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-19 19:20:58,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:20:58,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-19 19:20:58,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:20:58,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 19:20:58,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 19:20:58,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487443173] [2022-07-19 19:20:58,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487443173] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 19:20:58,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 19:20:58,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 19:20:58,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305831792] [2022-07-19 19:20:58,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 19:20:58,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 19:20:58,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 19:20:58,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 19:20:58,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 19:20:58,413 INFO L87 Difference]: Start difference. First operand 2505 states and 4564 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, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:20:59,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 19:20:59,796 INFO L93 Difference]: Finished difference Result 3016 states and 5390 transitions. [2022-07-19 19:20:59,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 19:20:59,796 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, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2022-07-19 19:20:59,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 19:20:59,805 INFO L225 Difference]: With dead ends: 3016 [2022-07-19 19:20:59,805 INFO L226 Difference]: Without dead ends: 2647 [2022-07-19 19:20:59,808 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 [2022-07-19 19:20:59,809 INFO L413 NwaCegarLoop]: 4625 mSDtfsCounter, 1034 mSDsluCounter, 12280 mSDsCounter, 0 mSdLazyCounter, 722 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1058 SdHoareTripleChecker+Valid, 16905 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-19 19:20:59,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1058 Valid, 16905 Invalid, 786 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [64 Valid, 722 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-19 19:20:59,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2647 states. [2022-07-19 19:20:59,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2647 to 2505. [2022-07-19 19:20:59,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2505 states, 2469 states have (on average 1.8262454434993924) internal successors, (4509), 2472 states have internal predecessors, (4509), 28 states have call successors, (28), 7 states have call predecessors, (28), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-07-19 19:20:59,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2505 states to 2505 states and 4563 transitions. [2022-07-19 19:20:59,860 INFO L78 Accepts]: Start accepts. Automaton has 2505 states and 4563 transitions. Word has length 179 [2022-07-19 19:20:59,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 19:20:59,861 INFO L495 AbstractCegarLoop]: Abstraction has 2505 states and 4563 transitions. [2022-07-19 19:20:59,861 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, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:20:59,861 INFO L276 IsEmpty]: Start isEmpty. Operand 2505 states and 4563 transitions. [2022-07-19 19:20:59,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-07-19 19:20:59,864 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 19:20:59,864 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, 1] [2022-07-19 19:20:59,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 19:20:59,865 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 19:20:59,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 19:20:59,865 INFO L85 PathProgramCache]: Analyzing trace with hash 577910522, now seen corresponding path program 1 times [2022-07-19 19:20:59,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 19:20:59,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988712980] [2022-07-19 19:20:59,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 19:20:59,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 19:20:59,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:20:59,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 19:20:59,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:20:59,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-19 19:20:59,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:20:59,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-19 19:21:00,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:00,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-19 19:21:00,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:00,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-19 19:21:00,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:00,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 19:21:00,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 19:21:00,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988712980] [2022-07-19 19:21:00,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988712980] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 19:21:00,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 19:21:00,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 19:21:00,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922486699] [2022-07-19 19:21:00,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 19:21:00,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 19:21:00,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 19:21:00,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 19:21:00,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 19:21:00,039 INFO L87 Difference]: Start difference. First operand 2505 states and 4563 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:21:02,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 19:21:02,537 INFO L93 Difference]: Finished difference Result 3535 states and 6234 transitions. [2022-07-19 19:21:02,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-19 19:21:02,537 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2022-07-19 19:21:02,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 19:21:02,548 INFO L225 Difference]: With dead ends: 3535 [2022-07-19 19:21:02,548 INFO L226 Difference]: Without dead ends: 3171 [2022-07-19 19:21:02,549 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 [2022-07-19 19:21:02,559 INFO L413 NwaCegarLoop]: 4677 mSDtfsCounter, 5525 mSDsluCounter, 12854 mSDsCounter, 0 mSdLazyCounter, 2018 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5544 SdHoareTripleChecker+Valid, 17531 SdHoareTripleChecker+Invalid, 2142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 2018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-19 19:21:02,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5544 Valid, 17531 Invalid, 2142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 2018 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-19 19:21:02,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3171 states. [2022-07-19 19:21:02,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3171 to 2886. [2022-07-19 19:21:02,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2886 states, 2822 states have (on average 1.7983699503897945) internal successors, (5075), 2826 states have internal predecessors, (5075), 49 states have call successors, (49), 13 states have call predecessors, (49), 13 states have return successors, (50), 47 states have call predecessors, (50), 47 states have call successors, (50) [2022-07-19 19:21:02,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2886 states to 2886 states and 5174 transitions. [2022-07-19 19:21:02,745 INFO L78 Accepts]: Start accepts. Automaton has 2886 states and 5174 transitions. Word has length 179 [2022-07-19 19:21:02,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 19:21:02,745 INFO L495 AbstractCegarLoop]: Abstraction has 2886 states and 5174 transitions. [2022-07-19 19:21:02,746 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:21:02,746 INFO L276 IsEmpty]: Start isEmpty. Operand 2886 states and 5174 transitions. [2022-07-19 19:21:02,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-07-19 19:21:02,763 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 19:21:02,763 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, 1] [2022-07-19 19:21:02,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 19:21:02,764 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 19:21:02,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 19:21:02,764 INFO L85 PathProgramCache]: Analyzing trace with hash -807829258, now seen corresponding path program 1 times [2022-07-19 19:21:02,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 19:21:02,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847948871] [2022-07-19 19:21:02,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 19:21:02,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 19:21:02,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:02,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 19:21:02,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:02,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-19 19:21:02,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:02,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-19 19:21:02,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:02,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-19 19:21:02,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:02,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-19 19:21:02,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:02,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 19:21:02,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 19:21:02,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847948871] [2022-07-19 19:21:02,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847948871] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 19:21:02,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 19:21:02,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 19:21:02,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103988535] [2022-07-19 19:21:02,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 19:21:02,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 19:21:02,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 19:21:02,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 19:21:02,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 19:21:02,916 INFO L87 Difference]: Start difference. First operand 2886 states and 5174 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:21:06,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 19:21:06,053 INFO L93 Difference]: Finished difference Result 4458 states and 7728 transitions. [2022-07-19 19:21:06,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 19:21:06,054 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2022-07-19 19:21:06,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 19:21:06,068 INFO L225 Difference]: With dead ends: 4458 [2022-07-19 19:21:06,068 INFO L226 Difference]: Without dead ends: 3713 [2022-07-19 19:21:06,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-19 19:21:06,073 INFO L413 NwaCegarLoop]: 4988 mSDtfsCounter, 5553 mSDsluCounter, 17784 mSDsCounter, 0 mSdLazyCounter, 3139 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5572 SdHoareTripleChecker+Valid, 22772 SdHoareTripleChecker+Invalid, 3219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 3139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-19 19:21:06,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5572 Valid, 22772 Invalid, 3219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 3139 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-19 19:21:06,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3713 states. [2022-07-19 19:21:06,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3713 to 3240. [2022-07-19 19:21:06,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3240 states, 3148 states have (on average 1.7747776365946633) internal successors, (5587), 3153 states have internal predecessors, (5587), 70 states have call successors, (70), 19 states have call predecessors, (70), 20 states have return successors, (73), 69 states have call predecessors, (73), 68 states have call successors, (73) [2022-07-19 19:21:06,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3240 states to 3240 states and 5730 transitions. [2022-07-19 19:21:06,169 INFO L78 Accepts]: Start accepts. Automaton has 3240 states and 5730 transitions. Word has length 179 [2022-07-19 19:21:06,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 19:21:06,169 INFO L495 AbstractCegarLoop]: Abstraction has 3240 states and 5730 transitions. [2022-07-19 19:21:06,169 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:21:06,170 INFO L276 IsEmpty]: Start isEmpty. Operand 3240 states and 5730 transitions. [2022-07-19 19:21:06,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-07-19 19:21:06,171 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 19:21:06,171 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, 1] [2022-07-19 19:21:06,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-19 19:21:06,172 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 19:21:06,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 19:21:06,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1717666424, now seen corresponding path program 1 times [2022-07-19 19:21:06,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 19:21:06,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598214833] [2022-07-19 19:21:06,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 19:21:06,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 19:21:06,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:06,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 19:21:06,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:06,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-19 19:21:06,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:06,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-19 19:21:06,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:06,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-19 19:21:06,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:06,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-19 19:21:06,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:06,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 19:21:06,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 19:21:06,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598214833] [2022-07-19 19:21:06,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598214833] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 19:21:06,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 19:21:06,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 19:21:06,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779898865] [2022-07-19 19:21:06,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 19:21:06,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 19:21:06,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 19:21:06,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 19:21:06,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 19:21:06,332 INFO L87 Difference]: Start difference. First operand 3240 states and 5730 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:21:09,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 19:21:09,254 INFO L93 Difference]: Finished difference Result 5819 states and 9912 transitions. [2022-07-19 19:21:09,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 19:21:09,254 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2022-07-19 19:21:09,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 19:21:09,271 INFO L225 Difference]: With dead ends: 5819 [2022-07-19 19:21:09,272 INFO L226 Difference]: Without dead ends: 4720 [2022-07-19 19:21:09,277 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 [2022-07-19 19:21:09,278 INFO L413 NwaCegarLoop]: 4721 mSDtfsCounter, 5664 mSDsluCounter, 17110 mSDsCounter, 0 mSdLazyCounter, 2785 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5683 SdHoareTripleChecker+Valid, 21831 SdHoareTripleChecker+Invalid, 2908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 2785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-19 19:21:09,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5683 Valid, 21831 Invalid, 2908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 2785 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-07-19 19:21:09,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4720 states. [2022-07-19 19:21:09,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4720 to 3949. [2022-07-19 19:21:09,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3949 states, 3801 states have (on average 1.739542225730071) internal successors, (6612), 3808 states have internal predecessors, (6612), 112 states have call successors, (112), 31 states have call predecessors, (112), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2022-07-19 19:21:09,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3949 states to 3949 states and 6847 transitions. [2022-07-19 19:21:09,453 INFO L78 Accepts]: Start accepts. Automaton has 3949 states and 6847 transitions. Word has length 179 [2022-07-19 19:21:09,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 19:21:09,453 INFO L495 AbstractCegarLoop]: Abstraction has 3949 states and 6847 transitions. [2022-07-19 19:21:09,454 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:21:09,454 INFO L276 IsEmpty]: Start isEmpty. Operand 3949 states and 6847 transitions. [2022-07-19 19:21:09,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-07-19 19:21:09,456 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 19:21:09,456 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, 1] [2022-07-19 19:21:09,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-19 19:21:09,457 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 19:21:09,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 19:21:09,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1106397366, now seen corresponding path program 1 times [2022-07-19 19:21:09,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 19:21:09,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989606752] [2022-07-19 19:21:09,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 19:21:09,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 19:21:09,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:09,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 19:21:09,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:09,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-19 19:21:09,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:09,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-19 19:21:09,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:09,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-19 19:21:09,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:09,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-19 19:21:09,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:09,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 19:21:09,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 19:21:09,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989606752] [2022-07-19 19:21:09,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989606752] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 19:21:09,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 19:21:09,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 19:21:09,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156815475] [2022-07-19 19:21:09,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 19:21:09,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 19:21:09,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 19:21:09,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 19:21:09,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 19:21:09,613 INFO L87 Difference]: Start difference. First operand 3949 states and 6847 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:21:12,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 19:21:12,473 INFO L93 Difference]: Finished difference Result 8436 states and 14085 transitions. [2022-07-19 19:21:12,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 19:21:12,473 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2022-07-19 19:21:12,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 19:21:12,496 INFO L225 Difference]: With dead ends: 8436 [2022-07-19 19:21:12,496 INFO L226 Difference]: Without dead ends: 6628 [2022-07-19 19:21:12,503 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 [2022-07-19 19:21:12,504 INFO L413 NwaCegarLoop]: 4976 mSDtfsCounter, 5548 mSDsluCounter, 17784 mSDsCounter, 0 mSdLazyCounter, 3138 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5567 SdHoareTripleChecker+Valid, 22760 SdHoareTripleChecker+Invalid, 3223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 3138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-19 19:21:12,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5567 Valid, 22760 Invalid, 3223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 3138 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-19 19:21:12,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6628 states. [2022-07-19 19:21:12,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6628 to 5368. [2022-07-19 19:21:12,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5368 states, 5108 states have (on average 1.6957713390759592) internal successors, (8662), 5119 states have internal predecessors, (8662), 196 states have call successors, (196), 55 states have call predecessors, (196), 62 states have return successors, (229), 201 states have call predecessors, (229), 194 states have call successors, (229) [2022-07-19 19:21:12,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5368 states to 5368 states and 9087 transitions. [2022-07-19 19:21:12,703 INFO L78 Accepts]: Start accepts. Automaton has 5368 states and 9087 transitions. Word has length 179 [2022-07-19 19:21:12,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 19:21:12,704 INFO L495 AbstractCegarLoop]: Abstraction has 5368 states and 9087 transitions. [2022-07-19 19:21:12,704 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:21:12,704 INFO L276 IsEmpty]: Start isEmpty. Operand 5368 states and 9087 transitions. [2022-07-19 19:21:12,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-07-19 19:21:12,706 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 19:21:12,706 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, 1] [2022-07-19 19:21:12,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-19 19:21:12,707 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 19:21:12,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 19:21:12,707 INFO L85 PathProgramCache]: Analyzing trace with hash -298794312, now seen corresponding path program 1 times [2022-07-19 19:21:12,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 19:21:12,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183153902] [2022-07-19 19:21:12,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 19:21:12,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 19:21:12,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:12,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 19:21:12,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:12,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-19 19:21:12,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:12,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-19 19:21:12,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:12,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-19 19:21:12,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:12,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-19 19:21:12,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:12,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 19:21:12,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 19:21:12,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183153902] [2022-07-19 19:21:12,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183153902] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 19:21:12,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 19:21:12,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 19:21:12,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490404008] [2022-07-19 19:21:12,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 19:21:12,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 19:21:12,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 19:21:12,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 19:21:12,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 19:21:12,853 INFO L87 Difference]: Start difference. First operand 5368 states and 9087 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:21:16,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 19:21:16,239 INFO L93 Difference]: Finished difference Result 13662 states and 22435 transitions. [2022-07-19 19:21:16,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 19:21:16,240 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2022-07-19 19:21:16,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 19:21:16,271 INFO L225 Difference]: With dead ends: 13662 [2022-07-19 19:21:16,272 INFO L226 Difference]: Without dead ends: 10435 [2022-07-19 19:21:16,285 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 [2022-07-19 19:21:16,286 INFO L413 NwaCegarLoop]: 4968 mSDtfsCounter, 5543 mSDsluCounter, 17784 mSDsCounter, 0 mSdLazyCounter, 3118 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5562 SdHoareTripleChecker+Valid, 22752 SdHoareTripleChecker+Invalid, 3204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 3118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-19 19:21:16,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5562 Valid, 22752 Invalid, 3204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 3118 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-19 19:21:16,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10435 states. [2022-07-19 19:21:16,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10435 to 8220. [2022-07-19 19:21:16,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8220 states, 7736 states have (on average 1.6527921406411583) internal successors, (12786), 7755 states have internal predecessors, (12786), 364 states have call successors, (364), 103 states have call predecessors, (364), 118 states have return successors, (459), 377 states have call predecessors, (459), 362 states have call successors, (459) [2022-07-19 19:21:16,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8220 states to 8220 states and 13609 transitions. [2022-07-19 19:21:16,659 INFO L78 Accepts]: Start accepts. Automaton has 8220 states and 13609 transitions. Word has length 179 [2022-07-19 19:21:16,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 19:21:16,660 INFO L495 AbstractCegarLoop]: Abstraction has 8220 states and 13609 transitions. [2022-07-19 19:21:16,660 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:21:16,660 INFO L276 IsEmpty]: Start isEmpty. Operand 8220 states and 13609 transitions. [2022-07-19 19:21:16,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-07-19 19:21:16,664 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 19:21:16,664 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 19:21:16,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-19 19:21:16,665 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 19:21:16,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 19:21:16,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1147786554, now seen corresponding path program 1 times [2022-07-19 19:21:16,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 19:21:16,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052364985] [2022-07-19 19:21:16,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 19:21:16,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 19:21:16,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:16,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 19:21:16,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:16,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-19 19:21:16,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:16,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-19 19:21:16,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:16,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-19 19:21:16,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:16,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-19 19:21:16,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:16,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 19:21:16,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 19:21:16,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052364985] [2022-07-19 19:21:16,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052364985] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 19:21:16,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 19:21:16,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 19:21:16,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760170703] [2022-07-19 19:21:16,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 19:21:16,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 19:21:16,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 19:21:16,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 19:21:16,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 19:21:16,800 INFO L87 Difference]: Start difference. First operand 8220 states and 13609 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:21:20,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 19:21:20,544 INFO L93 Difference]: Finished difference Result 24132 states and 39227 transitions. [2022-07-19 19:21:20,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 19:21:20,544 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2022-07-19 19:21:20,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 19:21:20,598 INFO L225 Difference]: With dead ends: 24132 [2022-07-19 19:21:20,598 INFO L226 Difference]: Without dead ends: 18053 [2022-07-19 19:21:20,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-19 19:21:20,621 INFO L413 NwaCegarLoop]: 4963 mSDtfsCounter, 5542 mSDsluCounter, 17784 mSDsCounter, 0 mSdLazyCounter, 3110 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5561 SdHoareTripleChecker+Valid, 22747 SdHoareTripleChecker+Invalid, 3196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 3110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-19 19:21:20,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5561 Valid, 22747 Invalid, 3196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 3110 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-07-19 19:21:20,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18053 states. [2022-07-19 19:21:21,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18053 to 13937. [2022-07-19 19:21:21,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13937 states, 13005 states have (on average 1.6187620146097654) internal successors, (21052), 13040 states have internal predecessors, (21052), 700 states have call successors, (700), 199 states have call predecessors, (700), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2022-07-19 19:21:21,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13937 states to 13937 states and 22725 transitions. [2022-07-19 19:21:21,409 INFO L78 Accepts]: Start accepts. Automaton has 13937 states and 22725 transitions. Word has length 179 [2022-07-19 19:21:21,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 19:21:21,409 INFO L495 AbstractCegarLoop]: Abstraction has 13937 states and 22725 transitions. [2022-07-19 19:21:21,409 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:21:21,409 INFO L276 IsEmpty]: Start isEmpty. Operand 13937 states and 22725 transitions. [2022-07-19 19:21:21,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-07-19 19:21:21,416 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 19:21:21,416 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 19:21:21,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-19 19:21:21,416 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 19:21:21,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 19:21:21,417 INFO L85 PathProgramCache]: Analyzing trace with hash 224619128, now seen corresponding path program 1 times [2022-07-19 19:21:21,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 19:21:21,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900305997] [2022-07-19 19:21:21,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 19:21:21,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 19:21:21,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:21,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 19:21:21,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:21,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-19 19:21:21,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:21,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-19 19:21:21,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:21,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-19 19:21:21,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:21,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-19 19:21:21,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:21,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 19:21:21,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 19:21:21,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900305997] [2022-07-19 19:21:21,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900305997] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 19:21:21,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 19:21:21,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 19:21:21,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8109249] [2022-07-19 19:21:21,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 19:21:21,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 19:21:21,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 19:21:21,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 19:21:21,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-19 19:21:21,543 INFO L87 Difference]: Start difference. First operand 13937 states and 22725 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:21:24,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 19:21:24,112 INFO L93 Difference]: Finished difference Result 30100 states and 49050 transitions. [2022-07-19 19:21:24,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 19:21:24,112 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2022-07-19 19:21:24,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 19:21:24,163 INFO L225 Difference]: With dead ends: 30100 [2022-07-19 19:21:24,163 INFO L226 Difference]: Without dead ends: 18304 [2022-07-19 19:21:24,196 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 [2022-07-19 19:21:24,197 INFO L413 NwaCegarLoop]: 4601 mSDtfsCounter, 5093 mSDsluCounter, 16796 mSDsCounter, 0 mSdLazyCounter, 1478 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5113 SdHoareTripleChecker+Valid, 21397 SdHoareTripleChecker+Invalid, 1567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 1478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-19 19:21:24,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5113 Valid, 21397 Invalid, 1567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 1478 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-19 19:21:24,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18304 states. [2022-07-19 19:21:24,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18304 to 13937. [2022-07-19 19:21:24,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13937 states, 13005 states have (on average 1.6162245290272972) internal successors, (21019), 13040 states have internal predecessors, (21019), 700 states have call successors, (700), 199 states have call predecessors, (700), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2022-07-19 19:21:24,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13937 states to 13937 states and 22692 transitions. [2022-07-19 19:21:24,974 INFO L78 Accepts]: Start accepts. Automaton has 13937 states and 22692 transitions. Word has length 179 [2022-07-19 19:21:24,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 19:21:24,975 INFO L495 AbstractCegarLoop]: Abstraction has 13937 states and 22692 transitions. [2022-07-19 19:21:24,975 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:21:24,975 INFO L276 IsEmpty]: Start isEmpty. Operand 13937 states and 22692 transitions. [2022-07-19 19:21:24,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-07-19 19:21:24,981 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 19:21:24,981 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, 1] [2022-07-19 19:21:24,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-19 19:21:24,982 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 19:21:24,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 19:21:24,982 INFO L85 PathProgramCache]: Analyzing trace with hash 610481530, now seen corresponding path program 1 times [2022-07-19 19:21:24,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 19:21:24,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295337523] [2022-07-19 19:21:24,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 19:21:24,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 19:21:24,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:25,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 19:21:25,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:25,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-19 19:21:25,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:25,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-19 19:21:25,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:25,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-19 19:21:25,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:25,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-19 19:21:25,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:25,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 19:21:25,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 19:21:25,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295337523] [2022-07-19 19:21:25,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295337523] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 19:21:25,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 19:21:25,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 19:21:25,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945743899] [2022-07-19 19:21:25,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 19:21:25,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 19:21:25,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 19:21:25,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 19:21:25,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 19:21:25,092 INFO L87 Difference]: Start difference. First operand 13937 states and 22692 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:21:30,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 19:21:30,112 INFO L93 Difference]: Finished difference Result 45037 states and 72769 transitions. [2022-07-19 19:21:30,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 19:21:30,113 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2022-07-19 19:21:30,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 19:21:30,212 INFO L225 Difference]: With dead ends: 45037 [2022-07-19 19:21:30,212 INFO L226 Difference]: Without dead ends: 33241 [2022-07-19 19:21:30,233 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 [2022-07-19 19:21:30,235 INFO L413 NwaCegarLoop]: 4952 mSDtfsCounter, 5534 mSDsluCounter, 17784 mSDsCounter, 0 mSdLazyCounter, 3083 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5553 SdHoareTripleChecker+Valid, 22736 SdHoareTripleChecker+Invalid, 3169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 3083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-19 19:21:30,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5553 Valid, 22736 Invalid, 3169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 3083 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-07-19 19:21:30,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33241 states. [2022-07-19 19:21:31,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33241 to 25435. [2022-07-19 19:21:31,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25435 states, 23607 states have (on average 1.5927055534375396) internal successors, (37599), 23674 states have internal predecessors, (37599), 1372 states have call successors, (1372), 391 states have call predecessors, (1372), 454 states have return successors, (2163), 1433 states have call predecessors, (2163), 1370 states have call successors, (2163) [2022-07-19 19:21:31,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25435 states to 25435 states and 41134 transitions. [2022-07-19 19:21:31,691 INFO L78 Accepts]: Start accepts. Automaton has 25435 states and 41134 transitions. Word has length 179 [2022-07-19 19:21:31,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 19:21:31,692 INFO L495 AbstractCegarLoop]: Abstraction has 25435 states and 41134 transitions. [2022-07-19 19:21:31,692 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:21:31,692 INFO L276 IsEmpty]: Start isEmpty. Operand 25435 states and 41134 transitions. [2022-07-19 19:21:31,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-07-19 19:21:31,703 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 19:21:31,703 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, 1] [2022-07-19 19:21:31,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-19 19:21:31,703 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 19:21:31,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 19:21:31,704 INFO L85 PathProgramCache]: Analyzing trace with hash 345834040, now seen corresponding path program 1 times [2022-07-19 19:21:31,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 19:21:31,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599834673] [2022-07-19 19:21:31,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 19:21:31,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 19:21:31,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:31,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 19:21:31,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:31,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-19 19:21:31,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:31,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-19 19:21:31,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:31,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-19 19:21:31,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:31,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-19 19:21:31,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:31,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 19:21:31,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 19:21:31,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599834673] [2022-07-19 19:21:31,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599834673] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 19:21:31,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 19:21:31,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 19:21:31,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365238550] [2022-07-19 19:21:31,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 19:21:31,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 19:21:31,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 19:21:31,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 19:21:31,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 19:21:31,840 INFO L87 Difference]: Start difference. First operand 25435 states and 41134 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:21:38,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 19:21:38,973 INFO L93 Difference]: Finished difference Result 86917 states and 140729 transitions. [2022-07-19 19:21:38,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 19:21:38,974 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2022-07-19 19:21:38,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 19:21:39,181 INFO L225 Difference]: With dead ends: 86917 [2022-07-19 19:21:39,181 INFO L226 Difference]: Without dead ends: 63623 [2022-07-19 19:21:39,241 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 [2022-07-19 19:21:39,241 INFO L413 NwaCegarLoop]: 4947 mSDtfsCounter, 5533 mSDsluCounter, 17784 mSDsCounter, 0 mSdLazyCounter, 3075 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5552 SdHoareTripleChecker+Valid, 22731 SdHoareTripleChecker+Invalid, 3161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 3075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-19 19:21:39,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5552 Valid, 22731 Invalid, 3161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 3075 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-07-19 19:21:39,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63623 states. [2022-07-19 19:21:42,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63623 to 48492. [2022-07-19 19:21:42,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48492 states, 44872 states have (on average 1.5789133535389552) internal successors, (70849), 45003 states have internal predecessors, (70849), 2716 states have call successors, (2716), 775 states have call predecessors, (2716), 902 states have return successors, (5029), 2841 states have call predecessors, (5029), 2714 states have call successors, (5029) [2022-07-19 19:21:42,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48492 states to 48492 states and 78594 transitions. [2022-07-19 19:21:42,662 INFO L78 Accepts]: Start accepts. Automaton has 48492 states and 78594 transitions. Word has length 179 [2022-07-19 19:21:42,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 19:21:42,663 INFO L495 AbstractCegarLoop]: Abstraction has 48492 states and 78594 transitions. [2022-07-19 19:21:42,663 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:21:42,663 INFO L276 IsEmpty]: Start isEmpty. Operand 48492 states and 78594 transitions. [2022-07-19 19:21:42,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-07-19 19:21:42,687 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 19:21:42,687 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, 1] [2022-07-19 19:21:42,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-19 19:21:42,688 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 19:21:42,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 19:21:42,688 INFO L85 PathProgramCache]: Analyzing trace with hash -2018007622, now seen corresponding path program 1 times [2022-07-19 19:21:42,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 19:21:42,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484216648] [2022-07-19 19:21:42,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 19:21:42,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 19:21:42,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:42,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 19:21:42,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:42,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-19 19:21:42,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:42,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-19 19:21:42,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:42,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-19 19:21:42,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:42,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-19 19:21:42,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:21:42,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 19:21:42,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 19:21:42,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484216648] [2022-07-19 19:21:42,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484216648] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 19:21:42,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 19:21:42,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 19:21:42,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535340222] [2022-07-19 19:21:42,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 19:21:42,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 19:21:42,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 19:21:42,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 19:21:42,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 19:21:42,827 INFO L87 Difference]: Start difference. First operand 48492 states and 78594 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:21:55,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 19:21:55,498 INFO L93 Difference]: Finished difference Result 170676 states and 278495 transitions. [2022-07-19 19:21:55,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 19:21:55,498 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2022-07-19 19:21:55,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 19:21:56,103 INFO L225 Difference]: With dead ends: 170676 [2022-07-19 19:21:56,104 INFO L226 Difference]: Without dead ends: 124325 [2022-07-19 19:21:56,210 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 [2022-07-19 19:21:56,210 INFO L413 NwaCegarLoop]: 4695 mSDtfsCounter, 5634 mSDsluCounter, 17110 mSDsCounter, 0 mSdLazyCounter, 2735 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5653 SdHoareTripleChecker+Valid, 21805 SdHoareTripleChecker+Invalid, 2861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 2735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-19 19:21:56,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5653 Valid, 21805 Invalid, 2861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 2735 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-19 19:21:56,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124325 states. [2022-07-19 19:22:03,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124325 to 94733. [2022-07-19 19:22:03,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94733 states, 87529 states have (on average 1.5713534942704703) internal successors, (137539), 87788 states have internal predecessors, (137539), 5404 states have call successors, (5404), 1543 states have call predecessors, (5404), 1798 states have return successors, (12219), 5657 states have call predecessors, (12219), 5402 states have call successors, (12219) [2022-07-19 19:22:03,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94733 states to 94733 states and 155162 transitions. [2022-07-19 19:22:03,632 INFO L78 Accepts]: Start accepts. Automaton has 94733 states and 155162 transitions. Word has length 179 [2022-07-19 19:22:03,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 19:22:03,632 INFO L495 AbstractCegarLoop]: Abstraction has 94733 states and 155162 transitions. [2022-07-19 19:22:03,632 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:22:03,633 INFO L276 IsEmpty]: Start isEmpty. Operand 94733 states and 155162 transitions. [2022-07-19 19:22:03,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-07-19 19:22:03,664 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 19:22:03,664 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 19:22:03,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-19 19:22:03,665 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 19:22:03,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 19:22:03,665 INFO L85 PathProgramCache]: Analyzing trace with hash 953780728, now seen corresponding path program 1 times [2022-07-19 19:22:03,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 19:22:03,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986626739] [2022-07-19 19:22:03,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 19:22:03,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 19:22:03,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:22:03,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 19:22:03,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:22:03,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-19 19:22:03,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:22:03,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-19 19:22:03,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:22:03,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-19 19:22:03,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:22:03,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-19 19:22:03,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:22:03,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 19:22:03,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 19:22:03,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986626739] [2022-07-19 19:22:03,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986626739] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 19:22:03,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 19:22:03,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 19:22:03,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807996119] [2022-07-19 19:22:03,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 19:22:03,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 19:22:03,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 19:22:03,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 19:22:03,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-19 19:22:03,818 INFO L87 Difference]: Start difference. First operand 94733 states and 155162 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-19 19:22:16,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 19:22:16,620 INFO L93 Difference]: Finished difference Result 218788 states and 364993 transitions. [2022-07-19 19:22:16,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 19:22:16,620 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2022-07-19 19:22:16,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 19:22:17,168 INFO L225 Difference]: With dead ends: 218788 [2022-07-19 19:22:17,168 INFO L226 Difference]: Without dead ends: 126196 [2022-07-19 19:22:17,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-07-19 19:22:17,589 INFO L413 NwaCegarLoop]: 4586 mSDtfsCounter, 5096 mSDsluCounter, 16796 mSDsCounter, 0 mSdLazyCounter, 1442 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5116 SdHoareTripleChecker+Valid, 21382 SdHoareTripleChecker+Invalid, 1534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-19 19:22:17,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5116 Valid, 21382 Invalid, 1534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1442 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-19 19:22:17,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126196 states.