./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label49+token_ring.12.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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_label49+token_ring.12.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 02a5384e72a6893ea777db3cb5d438cb5a46ff3cad82e91f14686b217f61c414 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 07:08:08,320 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 07:08:08,321 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 07:08:08,340 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 07:08:08,340 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 07:08:08,341 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 07:08:08,342 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 07:08:08,344 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 07:08:08,346 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 07:08:08,349 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 07:08:08,349 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 07:08:08,351 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 07:08:08,352 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 07:08:08,354 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 07:08:08,356 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 07:08:08,357 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 07:08:08,358 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 07:08:08,359 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 07:08:08,362 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 07:08:08,363 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 07:08:08,366 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 07:08:08,367 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 07:08:08,368 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 07:08:08,370 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 07:08:08,371 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 07:08:08,373 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 07:08:08,377 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 07:08:08,377 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 07:08:08,378 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 07:08:08,378 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 07:08:08,379 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 07:08:08,379 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 07:08:08,380 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 07:08:08,381 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 07:08:08,381 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 07:08:08,382 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 07:08:08,383 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 07:08:08,384 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 07:08:08,384 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 07:08:08,384 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 07:08:08,385 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 07:08:08,387 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 07:08:08,389 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 07:08:08,412 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 07:08:08,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 07:08:08,413 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 07:08:08,413 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 07:08:08,414 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 07:08:08,414 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 07:08:08,414 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 07:08:08,414 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 07:08:08,415 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 07:08:08,415 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 07:08:08,415 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 07:08:08,416 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 07:08:08,416 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 07:08:08,416 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 07:08:08,420 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 07:08:08,421 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 07:08:08,421 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 07:08:08,421 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 07:08:08,421 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 07:08:08,421 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 07:08:08,422 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 07:08:08,422 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 07:08:08,422 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 07:08:08,422 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 07:08:08,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 07:08:08,423 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 07:08:08,423 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 07:08:08,423 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 07:08:08,423 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 07:08:08,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 07:08:08,424 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 07:08:08,424 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 07:08:08,424 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 07:08:08,424 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02a5384e72a6893ea777db3cb5d438cb5a46ff3cad82e91f14686b217f61c414 [2022-07-21 07:08:08,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 07:08:08,702 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 07:08:08,704 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 07:08:08,705 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 07:08:08,706 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 07:08:08,707 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label49+token_ring.12.cil-2.c [2022-07-21 07:08:08,770 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f03a49c75/bbc62f5979584572814f3dd462caba84/FLAG380e0ce7b [2022-07-21 07:08:09,556 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 07:08:09,557 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.12.cil-2.c [2022-07-21 07:08:09,594 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f03a49c75/bbc62f5979584572814f3dd462caba84/FLAG380e0ce7b [2022-07-21 07:08:09,798 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f03a49c75/bbc62f5979584572814f3dd462caba84 [2022-07-21 07:08:09,800 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 07:08:09,801 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 07:08:09,802 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 07:08:09,802 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 07:08:09,805 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 07:08:09,805 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 07:08:09" (1/1) ... [2022-07-21 07:08:09,806 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46904180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:08:09, skipping insertion in model container [2022-07-21 07:08:09,806 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 07:08:09" (1/1) ... [2022-07-21 07:08:09,810 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 07:08:09,982 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 07:08:11,278 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_label49+token_ring.12.cil-2.c[380593,380606] [2022-07-21 07:08:11,296 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_label49+token_ring.12.cil-2.c[383339,383352] [2022-07-21 07:08:11,528 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 07:08:11,535 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 07:08:12,151 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_label49+token_ring.12.cil-2.c[380593,380606] [2022-07-21 07:08:12,157 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_label49+token_ring.12.cil-2.c[383339,383352] [2022-07-21 07:08:12,192 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 07:08:12,251 INFO L208 MainTranslator]: Completed translation [2022-07-21 07:08:12,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:08:12 WrapperNode [2022-07-21 07:08:12,252 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 07:08:12,253 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 07:08:12,253 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 07:08:12,253 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 07:08:12,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:08:12" (1/1) ... [2022-07-21 07:08:12,348 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:08:12" (1/1) ... [2022-07-21 07:08:12,784 INFO L137 Inliner]: procedures = 68, calls = 77, calls flagged for inlining = 46, calls inlined = 46, statements flattened = 13199 [2022-07-21 07:08:12,784 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 07:08:12,785 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 07:08:12,786 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 07:08:12,786 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 07:08:12,792 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:08:12" (1/1) ... [2022-07-21 07:08:12,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:08:12" (1/1) ... [2022-07-21 07:08:12,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:08:12" (1/1) ... [2022-07-21 07:08:12,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:08:12" (1/1) ... [2022-07-21 07:08:13,055 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:08:12" (1/1) ... [2022-07-21 07:08:13,086 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:08:12" (1/1) ... [2022-07-21 07:08:13,103 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:08:12" (1/1) ... [2022-07-21 07:08:13,142 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 07:08:13,143 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 07:08:13,143 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 07:08:13,143 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 07:08:13,143 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:08:12" (1/1) ... [2022-07-21 07:08:13,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 07:08:13,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 07:08:13,165 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) [2022-07-21 07:08:13,186 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 [2022-07-21 07:08:13,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 07:08:13,191 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-07-21 07:08:13,192 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-07-21 07:08:13,192 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-07-21 07:08:13,192 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-07-21 07:08:13,192 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-07-21 07:08:13,192 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-07-21 07:08:13,192 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-07-21 07:08:13,192 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-07-21 07:08:13,192 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-07-21 07:08:13,193 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-07-21 07:08:13,193 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-07-21 07:08:13,193 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-07-21 07:08:13,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 07:08:13,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 07:08:13,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 07:08:13,286 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 07:08:13,288 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 07:08:18,073 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 07:08:18,119 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 07:08:18,135 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2022-07-21 07:08:18,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 07:08:18 BoogieIcfgContainer [2022-07-21 07:08:18,139 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 07:08:18,141 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 07:08:18,141 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 07:08:18,143 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 07:08:18,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 07:08:09" (1/3) ... [2022-07-21 07:08:18,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f0df81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 07:08:18, skipping insertion in model container [2022-07-21 07:08:18,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:08:12" (2/3) ... [2022-07-21 07:08:18,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f0df81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 07:08:18, skipping insertion in model container [2022-07-21 07:08:18,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 07:08:18" (3/3) ... [2022-07-21 07:08:18,145 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label49+token_ring.12.cil-2.c [2022-07-21 07:08:18,155 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 07:08:18,155 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-21 07:08:18,227 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 07:08:18,232 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@38140c7c, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@328b0dd [2022-07-21 07:08:18,232 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-21 07:08:18,241 INFO L276 IsEmpty]: Start isEmpty. Operand has 2565 states, 2530 states have (on average 1.8430830039525692) internal successors, (4663), 2533 states have internal predecessors, (4663), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-07-21 07:08:18,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-21 07:08:18,255 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 07:08:18,255 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 07:08:18,256 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 07:08:18,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 07:08:18,260 INFO L85 PathProgramCache]: Analyzing trace with hash 10619845, now seen corresponding path program 1 times [2022-07-21 07:08:18,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 07:08:18,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412499053] [2022-07-21 07:08:18,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 07:08:18,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 07:08:18,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:18,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 07:08:18,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:18,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 07:08:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:18,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 07:08:18,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:18,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-21 07:08:18,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:18,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 07:08:18,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:18,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 07:08:18,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 07:08:18,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412499053] [2022-07-21 07:08:18,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412499053] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 07:08:18,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 07:08:18,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 07:08:18,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041825845] [2022-07-21 07:08:18,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 07:08:18,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 07:08:18,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 07:08:18,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 07:08:18,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 07:08:18,607 INFO L87 Difference]: Start difference. First operand has 2565 states, 2530 states have (on average 1.8430830039525692) internal successors, (4663), 2533 states have internal predecessors, (4663), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:08:20,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 07:08:20,035 INFO L93 Difference]: Finished difference Result 5266 states and 9664 transitions. [2022-07-21 07:08:20,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 07:08:20,037 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2022-07-21 07:08:20,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 07:08:20,052 INFO L225 Difference]: With dead ends: 5266 [2022-07-21 07:08:20,053 INFO L226 Difference]: Without dead ends: 2640 [2022-07-21 07:08:20,059 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 [2022-07-21 07:08:20,061 INFO L413 NwaCegarLoop]: 4683 mSDtfsCounter, 1034 mSDsluCounter, 12465 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1058 SdHoareTripleChecker+Valid, 17148 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-21 07:08:20,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1058 Valid, 17148 Invalid, 783 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [60 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-21 07:08:20,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2640 states. [2022-07-21 07:08:20,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2640 to 2498. [2022-07-21 07:08:20,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2498 states, 2464 states have (on average 1.8262987012987013) internal successors, (4500), 2466 states have internal predecessors, (4500), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-07-21 07:08:20,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2498 states to 2498 states and 4552 transitions. [2022-07-21 07:08:20,171 INFO L78 Accepts]: Start accepts. Automaton has 2498 states and 4552 transitions. Word has length 178 [2022-07-21 07:08:20,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 07:08:20,172 INFO L495 AbstractCegarLoop]: Abstraction has 2498 states and 4552 transitions. [2022-07-21 07:08:20,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:08:20,172 INFO L276 IsEmpty]: Start isEmpty. Operand 2498 states and 4552 transitions. [2022-07-21 07:08:20,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-21 07:08:20,175 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 07:08:20,175 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 07:08:20,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 07:08:20,176 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 07:08:20,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 07:08:20,177 INFO L85 PathProgramCache]: Analyzing trace with hash -79440445, now seen corresponding path program 1 times [2022-07-21 07:08:20,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 07:08:20,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79132147] [2022-07-21 07:08:20,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 07:08:20,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 07:08:20,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:20,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 07:08:20,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:20,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 07:08:20,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:20,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 07:08:20,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:20,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-21 07:08:20,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:20,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 07:08:20,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:20,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 07:08:20,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 07:08:20,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79132147] [2022-07-21 07:08:20,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79132147] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 07:08:20,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 07:08:20,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 07:08:20,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807891115] [2022-07-21 07:08:20,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 07:08:20,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 07:08:20,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 07:08:20,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 07:08:20,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 07:08:20,315 INFO L87 Difference]: Start difference. First operand 2498 states and 4552 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:08:21,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 07:08:21,413 INFO L93 Difference]: Finished difference Result 3002 states and 5366 transitions. [2022-07-21 07:08:21,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 07:08:21,413 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2022-07-21 07:08:21,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 07:08:21,424 INFO L225 Difference]: With dead ends: 3002 [2022-07-21 07:08:21,424 INFO L226 Difference]: Without dead ends: 2640 [2022-07-21 07:08:21,428 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 [2022-07-21 07:08:21,429 INFO L413 NwaCegarLoop]: 4613 mSDtfsCounter, 1020 mSDsluCounter, 12262 mSDsCounter, 0 mSdLazyCounter, 722 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1044 SdHoareTripleChecker+Valid, 16875 SdHoareTripleChecker+Invalid, 782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 07:08:21,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1044 Valid, 16875 Invalid, 782 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [60 Valid, 722 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 07:08:21,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2640 states. [2022-07-21 07:08:21,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2640 to 2498. [2022-07-21 07:08:21,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2498 states, 2464 states have (on average 1.8258928571428572) internal successors, (4499), 2466 states have internal predecessors, (4499), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-07-21 07:08:21,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2498 states to 2498 states and 4551 transitions. [2022-07-21 07:08:21,493 INFO L78 Accepts]: Start accepts. Automaton has 2498 states and 4551 transitions. Word has length 178 [2022-07-21 07:08:21,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 07:08:21,495 INFO L495 AbstractCegarLoop]: Abstraction has 2498 states and 4551 transitions. [2022-07-21 07:08:21,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:08:21,495 INFO L276 IsEmpty]: Start isEmpty. Operand 2498 states and 4551 transitions. [2022-07-21 07:08:21,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-21 07:08:21,499 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 07:08:21,499 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 07:08:21,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 07:08:21,500 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 07:08:21,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 07:08:21,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1483309631, now seen corresponding path program 1 times [2022-07-21 07:08:21,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 07:08:21,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246553434] [2022-07-21 07:08:21,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 07:08:21,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 07:08:21,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:21,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 07:08:21,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:21,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 07:08:21,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:21,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 07:08:21,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:21,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-21 07:08:21,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:21,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 07:08:21,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:21,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 07:08:21,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 07:08:21,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246553434] [2022-07-21 07:08:21,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246553434] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 07:08:21,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 07:08:21,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 07:08:21,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764829398] [2022-07-21 07:08:21,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 07:08:21,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 07:08:21,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 07:08:21,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 07:08:21,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 07:08:21,644 INFO L87 Difference]: Start difference. First operand 2498 states and 4551 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:08:24,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 07:08:24,135 INFO L93 Difference]: Finished difference Result 3514 states and 6198 transitions. [2022-07-21 07:08:24,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 07:08:24,136 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2022-07-21 07:08:24,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 07:08:24,153 INFO L225 Difference]: With dead ends: 3514 [2022-07-21 07:08:24,153 INFO L226 Difference]: Without dead ends: 3157 [2022-07-21 07:08:24,161 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 [2022-07-21 07:08:24,164 INFO L413 NwaCegarLoop]: 4665 mSDtfsCounter, 5509 mSDsluCounter, 12816 mSDsCounter, 0 mSdLazyCounter, 2014 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5528 SdHoareTripleChecker+Valid, 17481 SdHoareTripleChecker+Invalid, 2130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 2014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-21 07:08:24,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5528 Valid, 17481 Invalid, 2130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 2014 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-21 07:08:24,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3157 states. [2022-07-21 07:08:24,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3157 to 2874. [2022-07-21 07:08:24,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2874 states, 2812 states have (on average 1.7976529160739687) internal successors, (5055), 2815 states have internal predecessors, (5055), 47 states have call successors, (47), 12 states have call predecessors, (47), 13 states have return successors, (50), 47 states have call predecessors, (50), 47 states have call successors, (50) [2022-07-21 07:08:24,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2874 states to 2874 states and 5152 transitions. [2022-07-21 07:08:24,261 INFO L78 Accepts]: Start accepts. Automaton has 2874 states and 5152 transitions. Word has length 178 [2022-07-21 07:08:24,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 07:08:24,261 INFO L495 AbstractCegarLoop]: Abstraction has 2874 states and 5152 transitions. [2022-07-21 07:08:24,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:08:24,261 INFO L276 IsEmpty]: Start isEmpty. Operand 2874 states and 5152 transitions. [2022-07-21 07:08:24,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-21 07:08:24,263 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 07:08:24,263 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 07:08:24,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 07:08:24,264 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 07:08:24,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 07:08:24,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1935672389, now seen corresponding path program 1 times [2022-07-21 07:08:24,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 07:08:24,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822530057] [2022-07-21 07:08:24,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 07:08:24,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 07:08:24,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:24,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 07:08:24,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:24,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 07:08:24,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:24,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 07:08:24,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:24,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-21 07:08:24,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:24,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 07:08:24,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:24,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 07:08:24,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 07:08:24,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822530057] [2022-07-21 07:08:24,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822530057] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 07:08:24,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 07:08:24,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 07:08:24,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878024299] [2022-07-21 07:08:24,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 07:08:24,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 07:08:24,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 07:08:24,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 07:08:24,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 07:08:24,426 INFO L87 Difference]: Start difference. First operand 2874 states and 5152 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:08:27,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 07:08:27,295 INFO L93 Difference]: Finished difference Result 4427 states and 7672 transitions. [2022-07-21 07:08:27,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 07:08:27,296 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2022-07-21 07:08:27,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 07:08:27,308 INFO L225 Difference]: With dead ends: 4427 [2022-07-21 07:08:27,308 INFO L226 Difference]: Without dead ends: 3694 [2022-07-21 07:08:27,311 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 [2022-07-21 07:08:27,312 INFO L413 NwaCegarLoop]: 4964 mSDtfsCounter, 5539 mSDsluCounter, 17701 mSDsCounter, 0 mSdLazyCounter, 3126 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5558 SdHoareTripleChecker+Valid, 22665 SdHoareTripleChecker+Invalid, 3202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 3126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-21 07:08:27,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5558 Valid, 22665 Invalid, 3202 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [76 Valid, 3126 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-21 07:08:27,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3694 states. [2022-07-21 07:08:27,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3694 to 3223. [2022-07-21 07:08:27,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3223 states, 3133 states have (on average 1.7736993297159271) internal successors, (5557), 3137 states have internal predecessors, (5557), 68 states have call successors, (68), 18 states have call predecessors, (68), 20 states have return successors, (73), 69 states have call predecessors, (73), 68 states have call successors, (73) [2022-07-21 07:08:27,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3223 states to 3223 states and 5698 transitions. [2022-07-21 07:08:27,395 INFO L78 Accepts]: Start accepts. Automaton has 3223 states and 5698 transitions. Word has length 178 [2022-07-21 07:08:27,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 07:08:27,395 INFO L495 AbstractCegarLoop]: Abstraction has 3223 states and 5698 transitions. [2022-07-21 07:08:27,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:08:27,396 INFO L276 IsEmpty]: Start isEmpty. Operand 3223 states and 5698 transitions. [2022-07-21 07:08:27,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-21 07:08:27,397 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 07:08:27,398 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 07:08:27,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 07:08:27,398 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 07:08:27,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 07:08:27,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1324403331, now seen corresponding path program 1 times [2022-07-21 07:08:27,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 07:08:27,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273941383] [2022-07-21 07:08:27,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 07:08:27,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 07:08:27,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:27,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 07:08:27,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:27,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 07:08:27,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:27,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 07:08:27,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:27,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-21 07:08:27,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:27,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 07:08:27,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:27,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 07:08:27,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 07:08:27,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273941383] [2022-07-21 07:08:27,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273941383] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 07:08:27,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 07:08:27,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 07:08:27,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471011919] [2022-07-21 07:08:27,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 07:08:27,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 07:08:27,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 07:08:27,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 07:08:27,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 07:08:27,548 INFO L87 Difference]: Start difference. First operand 3223 states and 5698 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:08:30,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 07:08:30,580 INFO L93 Difference]: Finished difference Result 5773 states and 9826 transitions. [2022-07-21 07:08:30,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 07:08:30,581 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2022-07-21 07:08:30,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 07:08:30,618 INFO L225 Difference]: With dead ends: 5773 [2022-07-21 07:08:30,619 INFO L226 Difference]: Without dead ends: 4691 [2022-07-21 07:08:30,622 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 [2022-07-21 07:08:30,635 INFO L413 NwaCegarLoop]: 4709 mSDtfsCounter, 5648 mSDsluCounter, 17063 mSDsCounter, 0 mSdLazyCounter, 2778 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5667 SdHoareTripleChecker+Valid, 21772 SdHoareTripleChecker+Invalid, 2893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 2778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-21 07:08:30,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5667 Valid, 21772 Invalid, 2893 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [115 Valid, 2778 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-07-21 07:08:30,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4691 states. [2022-07-21 07:08:30,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4691 to 3922. [2022-07-21 07:08:30,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3922 states, 3776 states have (on average 1.7378177966101696) internal successors, (6562), 3782 states have internal predecessors, (6562), 110 states have call successors, (110), 30 states have call predecessors, (110), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2022-07-21 07:08:30,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3922 states to 3922 states and 6795 transitions. [2022-07-21 07:08:30,844 INFO L78 Accepts]: Start accepts. Automaton has 3922 states and 6795 transitions. Word has length 178 [2022-07-21 07:08:30,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 07:08:30,845 INFO L495 AbstractCegarLoop]: Abstraction has 3922 states and 6795 transitions. [2022-07-21 07:08:30,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:08:30,855 INFO L276 IsEmpty]: Start isEmpty. Operand 3922 states and 6795 transitions. [2022-07-21 07:08:30,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-21 07:08:30,857 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 07:08:30,857 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 07:08:30,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 07:08:30,858 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 07:08:30,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 07:08:30,858 INFO L85 PathProgramCache]: Analyzing trace with hash -80788347, now seen corresponding path program 1 times [2022-07-21 07:08:30,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 07:08:30,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637633248] [2022-07-21 07:08:30,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 07:08:30,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 07:08:30,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:30,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 07:08:30,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:30,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 07:08:30,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:30,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 07:08:30,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:30,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-21 07:08:30,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:30,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 07:08:31,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:31,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 07:08:31,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 07:08:31,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637633248] [2022-07-21 07:08:31,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637633248] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 07:08:31,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 07:08:31,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 07:08:31,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753348139] [2022-07-21 07:08:31,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 07:08:31,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 07:08:31,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 07:08:31,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 07:08:31,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 07:08:31,005 INFO L87 Difference]: Start difference. First operand 3922 states and 6795 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:08:34,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 07:08:34,025 INFO L93 Difference]: Finished difference Result 8360 states and 13939 transitions. [2022-07-21 07:08:34,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 07:08:34,026 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2022-07-21 07:08:34,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 07:08:34,047 INFO L225 Difference]: With dead ends: 8360 [2022-07-21 07:08:34,047 INFO L226 Difference]: Without dead ends: 6579 [2022-07-21 07:08:34,052 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 [2022-07-21 07:08:34,053 INFO L413 NwaCegarLoop]: 4952 mSDtfsCounter, 5534 mSDsluCounter, 17701 mSDsCounter, 0 mSdLazyCounter, 3125 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5553 SdHoareTripleChecker+Valid, 22653 SdHoareTripleChecker+Invalid, 3206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 3125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-21 07:08:34,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5553 Valid, 22653 Invalid, 3206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 3125 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-07-21 07:08:34,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6579 states. [2022-07-21 07:08:34,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6579 to 5321. [2022-07-21 07:08:34,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5321 states, 5063 states have (on average 1.693067351372704) internal successors, (8572), 5073 states have internal predecessors, (8572), 194 states have call successors, (194), 54 states have call predecessors, (194), 62 states have return successors, (229), 201 states have call predecessors, (229), 194 states have call successors, (229) [2022-07-21 07:08:34,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5321 states to 5321 states and 8995 transitions. [2022-07-21 07:08:34,321 INFO L78 Accepts]: Start accepts. Automaton has 5321 states and 8995 transitions. Word has length 178 [2022-07-21 07:08:34,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 07:08:34,321 INFO L495 AbstractCegarLoop]: Abstraction has 5321 states and 8995 transitions. [2022-07-21 07:08:34,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:08:34,321 INFO L276 IsEmpty]: Start isEmpty. Operand 5321 states and 8995 transitions. [2022-07-21 07:08:34,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-21 07:08:34,325 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 07:08:34,326 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 07:08:34,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 07:08:34,326 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 07:08:34,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 07:08:34,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1813545539, now seen corresponding path program 1 times [2022-07-21 07:08:34,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 07:08:34,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057133900] [2022-07-21 07:08:34,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 07:08:34,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 07:08:34,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:34,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 07:08:34,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:34,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 07:08:34,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:34,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 07:08:34,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:34,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-21 07:08:34,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:34,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 07:08:34,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:34,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 07:08:34,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 07:08:34,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057133900] [2022-07-21 07:08:34,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057133900] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 07:08:34,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 07:08:34,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 07:08:34,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514946258] [2022-07-21 07:08:34,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 07:08:34,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 07:08:34,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 07:08:34,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 07:08:34,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 07:08:34,489 INFO L87 Difference]: Start difference. First operand 5321 states and 8995 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:08:37,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 07:08:37,456 INFO L93 Difference]: Finished difference Result 13526 states and 22169 transitions. [2022-07-21 07:08:37,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 07:08:37,457 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2022-07-21 07:08:37,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 07:08:37,483 INFO L225 Difference]: With dead ends: 13526 [2022-07-21 07:08:37,483 INFO L226 Difference]: Without dead ends: 10346 [2022-07-21 07:08:37,494 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 [2022-07-21 07:08:37,495 INFO L413 NwaCegarLoop]: 4944 mSDtfsCounter, 5529 mSDsluCounter, 17701 mSDsCounter, 0 mSdLazyCounter, 3105 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5548 SdHoareTripleChecker+Valid, 22645 SdHoareTripleChecker+Invalid, 3187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 3105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-21 07:08:37,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5548 Valid, 22645 Invalid, 3187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 3105 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-21 07:08:37,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10346 states. [2022-07-21 07:08:38,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10346 to 8133. [2022-07-21 07:08:38,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8133 states, 7651 states have (on average 1.6489347797673506) internal successors, (12616), 7669 states have internal predecessors, (12616), 362 states have call successors, (362), 102 states have call predecessors, (362), 118 states have return successors, (459), 377 states have call predecessors, (459), 362 states have call successors, (459) [2022-07-21 07:08:38,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8133 states to 8133 states and 13437 transitions. [2022-07-21 07:08:38,035 INFO L78 Accepts]: Start accepts. Automaton has 8133 states and 13437 transitions. Word has length 178 [2022-07-21 07:08:38,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 07:08:38,036 INFO L495 AbstractCegarLoop]: Abstraction has 8133 states and 13437 transitions. [2022-07-21 07:08:38,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:08:38,036 INFO L276 IsEmpty]: Start isEmpty. Operand 8133 states and 13437 transitions. [2022-07-21 07:08:38,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-21 07:08:38,055 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 07:08:38,055 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 07:08:38,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 07:08:38,056 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 07:08:38,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 07:08:38,056 INFO L85 PathProgramCache]: Analyzing trace with hash 890378113, now seen corresponding path program 1 times [2022-07-21 07:08:38,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 07:08:38,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343176424] [2022-07-21 07:08:38,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 07:08:38,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 07:08:38,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:38,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 07:08:38,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:38,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 07:08:38,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:38,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 07:08:38,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:38,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-21 07:08:38,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:38,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 07:08:38,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:38,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 07:08:38,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 07:08:38,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343176424] [2022-07-21 07:08:38,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343176424] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 07:08:38,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 07:08:38,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 07:08:38,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435025185] [2022-07-21 07:08:38,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 07:08:38,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 07:08:38,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 07:08:38,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 07:08:38,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 07:08:38,207 INFO L87 Difference]: Start difference. First operand 8133 states and 13437 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:08:42,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 07:08:42,097 INFO L93 Difference]: Finished difference Result 23876 states and 38721 transitions. [2022-07-21 07:08:42,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 07:08:42,097 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2022-07-21 07:08:42,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 07:08:42,222 INFO L225 Difference]: With dead ends: 23876 [2022-07-21 07:08:42,222 INFO L226 Difference]: Without dead ends: 17884 [2022-07-21 07:08:42,253 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 [2022-07-21 07:08:42,254 INFO L413 NwaCegarLoop]: 4939 mSDtfsCounter, 5528 mSDsluCounter, 17701 mSDsCounter, 0 mSdLazyCounter, 3097 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5547 SdHoareTripleChecker+Valid, 22640 SdHoareTripleChecker+Invalid, 3179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 3097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-21 07:08:42,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5547 Valid, 22640 Invalid, 3179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 3097 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-07-21 07:08:42,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17884 states. [2022-07-21 07:08:42,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17884 to 13770. [2022-07-21 07:08:42,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13770 states, 12840 states have (on average 1.6138629283489097) internal successors, (20722), 12874 states have internal predecessors, (20722), 698 states have call successors, (698), 198 states have call predecessors, (698), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2022-07-21 07:08:42,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13770 states to 13770 states and 22393 transitions. [2022-07-21 07:08:42,944 INFO L78 Accepts]: Start accepts. Automaton has 13770 states and 22393 transitions. Word has length 178 [2022-07-21 07:08:42,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 07:08:42,944 INFO L495 AbstractCegarLoop]: Abstraction has 13770 states and 22393 transitions. [2022-07-21 07:08:42,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:08:42,945 INFO L276 IsEmpty]: Start isEmpty. Operand 13770 states and 22393 transitions. [2022-07-21 07:08:42,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-21 07:08:42,950 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 07:08:42,950 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 07:08:42,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 07:08:42,951 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 07:08:42,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 07:08:42,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1276240515, now seen corresponding path program 1 times [2022-07-21 07:08:42,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 07:08:42,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441669552] [2022-07-21 07:08:42,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 07:08:42,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 07:08:42,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:42,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 07:08:42,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:43,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 07:08:43,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:43,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 07:08:43,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:43,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-21 07:08:43,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:43,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 07:08:43,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:43,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 07:08:43,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 07:08:43,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441669552] [2022-07-21 07:08:43,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441669552] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 07:08:43,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 07:08:43,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 07:08:43,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362692612] [2022-07-21 07:08:43,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 07:08:43,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 07:08:43,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 07:08:43,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 07:08:43,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-21 07:08:43,076 INFO L87 Difference]: Start difference. First operand 13770 states and 22393 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:08:45,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 07:08:45,726 INFO L93 Difference]: Finished difference Result 29766 states and 48386 transitions. [2022-07-21 07:08:45,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 07:08:45,727 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2022-07-21 07:08:45,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 07:08:45,776 INFO L225 Difference]: With dead ends: 29766 [2022-07-21 07:08:45,777 INFO L226 Difference]: Without dead ends: 18137 [2022-07-21 07:08:45,810 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 [2022-07-21 07:08:45,811 INFO L413 NwaCegarLoop]: 4589 mSDtfsCounter, 5079 mSDsluCounter, 16760 mSDsCounter, 0 mSdLazyCounter, 1475 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5099 SdHoareTripleChecker+Valid, 21349 SdHoareTripleChecker+Invalid, 1560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-21 07:08:45,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5099 Valid, 21349 Invalid, 1560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1475 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-21 07:08:45,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18137 states. [2022-07-21 07:08:46,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18137 to 13770. [2022-07-21 07:08:46,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13770 states, 12840 states have (on average 1.6112928348909656) internal successors, (20689), 12874 states have internal predecessors, (20689), 698 states have call successors, (698), 198 states have call predecessors, (698), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2022-07-21 07:08:46,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13770 states to 13770 states and 22360 transitions. [2022-07-21 07:08:46,666 INFO L78 Accepts]: Start accepts. Automaton has 13770 states and 22360 transitions. Word has length 178 [2022-07-21 07:08:46,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 07:08:46,666 INFO L495 AbstractCegarLoop]: Abstraction has 13770 states and 22360 transitions. [2022-07-21 07:08:46,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:08:46,667 INFO L276 IsEmpty]: Start isEmpty. Operand 13770 states and 22360 transitions. [2022-07-21 07:08:46,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-21 07:08:46,674 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 07:08:46,674 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 07:08:46,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 07:08:46,675 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 07:08:46,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 07:08:46,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1011593025, now seen corresponding path program 1 times [2022-07-21 07:08:46,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 07:08:46,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650504233] [2022-07-21 07:08:46,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 07:08:46,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 07:08:46,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:46,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 07:08:46,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:46,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 07:08:46,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:46,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 07:08:46,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:46,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-21 07:08:46,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:46,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 07:08:46,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:46,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 07:08:46,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 07:08:46,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650504233] [2022-07-21 07:08:46,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650504233] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 07:08:46,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 07:08:46,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 07:08:46,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848406002] [2022-07-21 07:08:46,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 07:08:46,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 07:08:46,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 07:08:46,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 07:08:46,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 07:08:46,814 INFO L87 Difference]: Start difference. First operand 13770 states and 22360 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:08:51,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 07:08:51,902 INFO L93 Difference]: Finished difference Result 44541 states and 71783 transitions. [2022-07-21 07:08:51,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 07:08:51,903 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2022-07-21 07:08:51,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 07:08:51,980 INFO L225 Difference]: With dead ends: 44541 [2022-07-21 07:08:51,980 INFO L226 Difference]: Without dead ends: 32912 [2022-07-21 07:08:52,007 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 [2022-07-21 07:08:52,008 INFO L413 NwaCegarLoop]: 4928 mSDtfsCounter, 5520 mSDsluCounter, 17701 mSDsCounter, 0 mSdLazyCounter, 3070 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5539 SdHoareTripleChecker+Valid, 22629 SdHoareTripleChecker+Invalid, 3152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 3070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-21 07:08:52,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5539 Valid, 22629 Invalid, 3152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 3070 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-21 07:08:52,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32912 states. [2022-07-21 07:08:53,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32912 to 25108. [2022-07-21 07:08:53,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25108 states, 23282 states have (on average 1.587020015462589) internal successors, (36949), 23348 states have internal predecessors, (36949), 1370 states have call successors, (1370), 390 states have call predecessors, (1370), 454 states have return successors, (2163), 1433 states have call predecessors, (2163), 1370 states have call successors, (2163) [2022-07-21 07:08:53,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25108 states to 25108 states and 40482 transitions. [2022-07-21 07:08:53,573 INFO L78 Accepts]: Start accepts. Automaton has 25108 states and 40482 transitions. Word has length 178 [2022-07-21 07:08:53,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 07:08:53,573 INFO L495 AbstractCegarLoop]: Abstraction has 25108 states and 40482 transitions. [2022-07-21 07:08:53,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:08:53,573 INFO L276 IsEmpty]: Start isEmpty. Operand 25108 states and 40482 transitions. [2022-07-21 07:08:53,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-21 07:08:53,583 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 07:08:53,583 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 07:08:53,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-21 07:08:53,584 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 07:08:53,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 07:08:53,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1352248637, now seen corresponding path program 1 times [2022-07-21 07:08:53,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 07:08:53,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035100893] [2022-07-21 07:08:53,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 07:08:53,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 07:08:53,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:53,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 07:08:53,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:53,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 07:08:53,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:53,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 07:08:53,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:53,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-21 07:08:53,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:53,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 07:08:53,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:08:53,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 07:08:53,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 07:08:53,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035100893] [2022-07-21 07:08:53,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035100893] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 07:08:53,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 07:08:53,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 07:08:53,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616314636] [2022-07-21 07:08:53,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 07:08:53,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 07:08:53,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 07:08:53,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 07:08:53,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 07:08:53,696 INFO L87 Difference]: Start difference. First operand 25108 states and 40482 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:09:00,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 07:09:00,987 INFO L93 Difference]: Finished difference Result 85941 states and 138783 transitions. [2022-07-21 07:09:00,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 07:09:00,988 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2022-07-21 07:09:00,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 07:09:01,162 INFO L225 Difference]: With dead ends: 85941 [2022-07-21 07:09:01,162 INFO L226 Difference]: Without dead ends: 62974 [2022-07-21 07:09:01,210 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 [2022-07-21 07:09:01,210 INFO L413 NwaCegarLoop]: 4923 mSDtfsCounter, 5519 mSDsluCounter, 17701 mSDsCounter, 0 mSdLazyCounter, 3062 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5538 SdHoareTripleChecker+Valid, 22624 SdHoareTripleChecker+Invalid, 3144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 3062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-21 07:09:01,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5538 Valid, 22624 Invalid, 3144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 3062 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-21 07:09:01,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62974 states. [2022-07-21 07:09:04,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62974 to 47845. [2022-07-21 07:09:04,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47845 states, 44227 states have (on average 1.5727722884211002) internal successors, (69559), 44357 states have internal predecessors, (69559), 2714 states have call successors, (2714), 774 states have call predecessors, (2714), 902 states have return successors, (5029), 2841 states have call predecessors, (5029), 2714 states have call successors, (5029) [2022-07-21 07:09:04,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47845 states to 47845 states and 77302 transitions. [2022-07-21 07:09:04,534 INFO L78 Accepts]: Start accepts. Automaton has 47845 states and 77302 transitions. Word has length 178 [2022-07-21 07:09:04,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 07:09:04,535 INFO L495 AbstractCegarLoop]: Abstraction has 47845 states and 77302 transitions. [2022-07-21 07:09:04,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:09:04,535 INFO L276 IsEmpty]: Start isEmpty. Operand 47845 states and 77302 transitions. [2022-07-21 07:09:04,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-21 07:09:04,551 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 07:09:04,551 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 07:09:04,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-21 07:09:04,552 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 07:09:04,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 07:09:04,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1619539713, now seen corresponding path program 1 times [2022-07-21 07:09:04,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 07:09:04,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946960734] [2022-07-21 07:09:04,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 07:09:04,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 07:09:04,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:09:04,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 07:09:04,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:09:04,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 07:09:04,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:09:04,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 07:09:04,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:09:04,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-21 07:09:04,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:09:04,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 07:09:04,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:09:04,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 07:09:04,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 07:09:04,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946960734] [2022-07-21 07:09:04,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946960734] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 07:09:04,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 07:09:04,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 07:09:04,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698386706] [2022-07-21 07:09:04,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 07:09:04,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 07:09:04,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 07:09:04,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 07:09:04,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 07:09:04,688 INFO L87 Difference]: Start difference. First operand 47845 states and 77302 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:09:17,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 07:09:17,018 INFO L93 Difference]: Finished difference Result 168740 states and 274629 transitions. [2022-07-21 07:09:17,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 07:09:17,018 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2022-07-21 07:09:17,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 07:09:17,574 INFO L225 Difference]: With dead ends: 168740 [2022-07-21 07:09:17,574 INFO L226 Difference]: Without dead ends: 123036 [2022-07-21 07:09:17,710 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 [2022-07-21 07:09:17,711 INFO L413 NwaCegarLoop]: 4683 mSDtfsCounter, 5618 mSDsluCounter, 17063 mSDsCounter, 0 mSdLazyCounter, 2728 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5637 SdHoareTripleChecker+Valid, 21746 SdHoareTripleChecker+Invalid, 2846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 2728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-21 07:09:17,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5637 Valid, 21746 Invalid, 2846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 2728 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-21 07:09:17,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123036 states. [2022-07-21 07:09:24,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123036 to 93446. [2022-07-21 07:09:24,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93446 states, 86244 states have (on average 1.5649668382728075) internal successors, (134969), 86502 states have internal predecessors, (134969), 5402 states have call successors, (5402), 1542 states have call predecessors, (5402), 1798 states have return successors, (12219), 5657 states have call predecessors, (12219), 5402 states have call successors, (12219) [2022-07-21 07:09:25,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93446 states to 93446 states and 152590 transitions. [2022-07-21 07:09:25,279 INFO L78 Accepts]: Start accepts. Automaton has 93446 states and 152590 transitions. Word has length 178 [2022-07-21 07:09:25,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 07:09:25,280 INFO L495 AbstractCegarLoop]: Abstraction has 93446 states and 152590 transitions. [2022-07-21 07:09:25,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:09:25,280 INFO L276 IsEmpty]: Start isEmpty. Operand 93446 states and 152590 transitions. [2022-07-21 07:09:25,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-21 07:09:25,313 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 07:09:25,313 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 07:09:25,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-21 07:09:25,313 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 07:09:25,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 07:09:25,314 INFO L85 PathProgramCache]: Analyzing trace with hash -778448125, now seen corresponding path program 1 times [2022-07-21 07:09:25,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 07:09:25,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558730754] [2022-07-21 07:09:25,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 07:09:25,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 07:09:25,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:09:25,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 07:09:25,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:09:25,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 07:09:25,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:09:25,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 07:09:25,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:09:25,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-21 07:09:25,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:09:25,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 07:09:25,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:09:25,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 07:09:25,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 07:09:25,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558730754] [2022-07-21 07:09:25,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558730754] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 07:09:25,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 07:09:25,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 07:09:25,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392891407] [2022-07-21 07:09:25,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 07:09:25,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 07:09:25,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 07:09:25,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 07:09:25,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-21 07:09:25,433 INFO L87 Difference]: Start difference. First operand 93446 states and 152590 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:09:38,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 07:09:38,018 INFO L93 Difference]: Finished difference Result 216214 states and 359849 transitions. [2022-07-21 07:09:38,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 07:09:38,019 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2022-07-21 07:09:38,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 07:09:38,702 INFO L225 Difference]: With dead ends: 216214 [2022-07-21 07:09:38,702 INFO L226 Difference]: Without dead ends: 124909 [2022-07-21 07:09:38,881 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 [2022-07-21 07:09:38,883 INFO L413 NwaCegarLoop]: 4574 mSDtfsCounter, 5082 mSDsluCounter, 16760 mSDsCounter, 0 mSdLazyCounter, 1439 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5102 SdHoareTripleChecker+Valid, 21334 SdHoareTripleChecker+Invalid, 1527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-21 07:09:38,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5102 Valid, 21334 Invalid, 1527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1439 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-21 07:09:38,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124909 states.