./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/transmitter.13.cil.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/systemc/transmitter.13.cil.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 5975f0f3825b3a6653676f33bd69d14e1e58fcf0306bfb5508ab91dc8951d6c4 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 05:18:03,312 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 05:18:03,315 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 05:18:03,355 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 05:18:03,355 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 05:18:03,357 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 05:18:03,361 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 05:18:03,364 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 05:18:03,366 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 05:18:03,369 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 05:18:03,369 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 05:18:03,370 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 05:18:03,371 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 05:18:03,371 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 05:18:03,372 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 05:18:03,373 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 05:18:03,376 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 05:18:03,377 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 05:18:03,379 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 05:18:03,381 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 05:18:03,385 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 05:18:03,387 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 05:18:03,388 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 05:18:03,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 05:18:03,390 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 05:18:03,393 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 05:18:03,398 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 05:18:03,399 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 05:18:03,400 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 05:18:03,400 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 05:18:03,401 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 05:18:03,401 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 05:18:03,402 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 05:18:03,403 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 05:18:03,404 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 05:18:03,405 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 05:18:03,405 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 05:18:03,406 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 05:18:03,406 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 05:18:03,406 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 05:18:03,407 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 05:18:03,408 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 05:18:03,409 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 05:18:03,433 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 05:18:03,434 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 05:18:03,434 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 05:18:03,435 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 05:18:03,435 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 05:18:03,436 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 05:18:03,436 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 05:18:03,436 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 05:18:03,437 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 05:18:03,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 05:18:03,447 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 05:18:03,447 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 05:18:03,448 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 05:18:03,448 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 05:18:03,448 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 05:18:03,448 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 05:18:03,448 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 05:18:03,449 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 05:18:03,449 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 05:18:03,449 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 05:18:03,449 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 05:18:03,450 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 05:18:03,450 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 05:18:03,450 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 05:18:03,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:18:03,450 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 05:18:03,451 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 05:18:03,451 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 05:18:03,451 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 05:18:03,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 05:18:03,452 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 05:18:03,452 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 05:18:03,452 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 05:18:03,452 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5975f0f3825b3a6653676f33bd69d14e1e58fcf0306bfb5508ab91dc8951d6c4 [2022-07-21 05:18:03,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 05:18:03,773 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 05:18:03,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 05:18:03,777 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 05:18:03,778 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 05:18:03,779 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/transmitter.13.cil.c [2022-07-21 05:18:03,846 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73f26e49c/c3c327acd3814ab98749c7cc9c0c456c/FLAG3fe91e523 [2022-07-21 05:18:04,369 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 05:18:04,369 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.13.cil.c [2022-07-21 05:18:04,387 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73f26e49c/c3c327acd3814ab98749c7cc9c0c456c/FLAG3fe91e523 [2022-07-21 05:18:04,711 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73f26e49c/c3c327acd3814ab98749c7cc9c0c456c [2022-07-21 05:18:04,713 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 05:18:04,714 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 05:18:04,716 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 05:18:04,716 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 05:18:04,719 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 05:18:04,719 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:18:04" (1/1) ... [2022-07-21 05:18:04,720 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66bc0680 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:18:04, skipping insertion in model container [2022-07-21 05:18:04,721 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:18:04" (1/1) ... [2022-07-21 05:18:04,727 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 05:18:04,777 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 05:18:04,884 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/systemc/transmitter.13.cil.c[706,719] [2022-07-21 05:18:05,055 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:18:05,065 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 05:18:05,081 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/systemc/transmitter.13.cil.c[706,719] [2022-07-21 05:18:05,161 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:18:05,191 INFO L208 MainTranslator]: Completed translation [2022-07-21 05:18:05,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:18:05 WrapperNode [2022-07-21 05:18:05,191 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 05:18:05,193 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 05:18:05,193 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 05:18:05,193 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 05:18:05,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:18:05" (1/1) ... [2022-07-21 05:18:05,211 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:18:05" (1/1) ... [2022-07-21 05:18:05,277 INFO L137 Inliner]: procedures = 54, calls = 69, calls flagged for inlining = 38, calls inlined = 38, statements flattened = 891 [2022-07-21 05:18:05,278 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 05:18:05,278 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 05:18:05,278 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 05:18:05,278 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 05:18:05,294 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:18:05" (1/1) ... [2022-07-21 05:18:05,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:18:05" (1/1) ... [2022-07-21 05:18:05,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:18:05" (1/1) ... [2022-07-21 05:18:05,307 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:18:05" (1/1) ... [2022-07-21 05:18:05,323 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:18:05" (1/1) ... [2022-07-21 05:18:05,348 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:18:05" (1/1) ... [2022-07-21 05:18:05,352 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:18:05" (1/1) ... [2022-07-21 05:18:05,358 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 05:18:05,372 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 05:18:05,372 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 05:18:05,372 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 05:18:05,373 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:18:05" (1/1) ... [2022-07-21 05:18:05,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:18:05,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 05:18:05,415 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 05:18:05,428 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 05:18:05,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 05:18:05,452 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-07-21 05:18:05,452 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-07-21 05:18:05,452 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-07-21 05:18:05,452 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-07-21 05:18:05,453 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-07-21 05:18:05,453 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-07-21 05:18:05,453 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-07-21 05:18:05,453 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-07-21 05:18:05,453 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-07-21 05:18:05,454 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-07-21 05:18:05,454 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-07-21 05:18:05,454 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-07-21 05:18:05,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 05:18:05,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 05:18:05,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 05:18:05,631 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 05:18:05,649 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 05:18:06,357 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 05:18:06,372 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 05:18:06,372 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2022-07-21 05:18:06,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:18:06 BoogieIcfgContainer [2022-07-21 05:18:06,376 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 05:18:06,379 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 05:18:06,380 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 05:18:06,382 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 05:18:06,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 05:18:04" (1/3) ... [2022-07-21 05:18:06,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3df4b233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:18:06, skipping insertion in model container [2022-07-21 05:18:06,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:18:05" (2/3) ... [2022-07-21 05:18:06,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3df4b233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:18:06, skipping insertion in model container [2022-07-21 05:18:06,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:18:06" (3/3) ... [2022-07-21 05:18:06,386 INFO L111 eAbstractionObserver]: Analyzing ICFG transmitter.13.cil.c [2022-07-21 05:18:06,399 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 05:18:06,400 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 05:18:06,467 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 05:18:06,475 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@3a0740bf, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@53da9cae [2022-07-21 05:18:06,475 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 05:18:06,484 INFO L276 IsEmpty]: Start isEmpty. Operand has 403 states, 369 states have (on average 1.6666666666666667) internal successors, (615), 371 states have internal predecessors, (615), 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 05:18:06,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-21 05:18:06,528 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:18:06,529 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:18:06,530 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:18:06,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:18:06,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1079055231, now seen corresponding path program 1 times [2022-07-21 05:18:06,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:18:06,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501190306] [2022-07-21 05:18:06,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:18:06,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:18:06,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:06,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 05:18:06,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:06,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 05:18:06,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:06,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 05:18:07,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:07,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-21 05:18:07,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:07,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-21 05:18:07,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:07,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:18:07,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:18:07,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501190306] [2022-07-21 05:18:07,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501190306] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:18:07,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:18:07,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 05:18:07,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584622959] [2022-07-21 05:18:07,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:18:07,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 05:18:07,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:18:07,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 05:18:07,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:18:07,179 INFO L87 Difference]: Start difference. First operand has 403 states, 369 states have (on average 1.6666666666666667) internal successors, (615), 371 states have internal predecessors, (615), 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 37.8) internal successors, (189), 3 states have internal predecessors, (189), 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 05:18:09,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:18:09,029 INFO L93 Difference]: Finished difference Result 950 states and 1584 transitions. [2022-07-21 05:18:09,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 05:18:09,031 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.8) internal successors, (189), 3 states have internal predecessors, (189), 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 199 [2022-07-21 05:18:09,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:18:09,046 INFO L225 Difference]: With dead ends: 950 [2022-07-21 05:18:09,046 INFO L226 Difference]: Without dead ends: 549 [2022-07-21 05:18:09,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-21 05:18:09,056 INFO L413 NwaCegarLoop]: 696 mSDtfsCounter, 1095 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1119 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-21 05:18:09,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1119 Valid, 1117 Invalid, 818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 758 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-21 05:18:09,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2022-07-21 05:18:09,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 398. [2022-07-21 05:18:09,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 365 states have (on average 1.5726027397260274) internal successors, (574), 366 states have internal predecessors, (574), 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 05:18:09,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 626 transitions. [2022-07-21 05:18:09,143 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 626 transitions. Word has length 199 [2022-07-21 05:18:09,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:18:09,144 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 626 transitions. [2022-07-21 05:18:09,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.8) internal successors, (189), 3 states have internal predecessors, (189), 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 05:18:09,144 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 626 transitions. [2022-07-21 05:18:09,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-21 05:18:09,150 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:18:09,150 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:18:09,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 05:18:09,151 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:18:09,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:18:09,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1566128957, now seen corresponding path program 1 times [2022-07-21 05:18:09,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:18:09,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962260434] [2022-07-21 05:18:09,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:18:09,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:18:09,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:09,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 05:18:09,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:09,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 05:18:09,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:09,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 05:18:09,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:09,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-21 05:18:09,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:09,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-21 05:18:09,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:09,346 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 05:18:09,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:18:09,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962260434] [2022-07-21 05:18:09,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962260434] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:18:09,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:18:09,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 05:18:09,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723924776] [2022-07-21 05:18:09,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:18:09,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 05:18:09,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:18:09,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 05:18:09,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:18:09,350 INFO L87 Difference]: Start difference. First operand 398 states and 626 transitions. Second operand has 5 states, 5 states have (on average 37.8) internal successors, (189), 3 states have internal predecessors, (189), 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 05:18:10,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:18:10,884 INFO L93 Difference]: Finished difference Result 933 states and 1488 transitions. [2022-07-21 05:18:10,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 05:18:10,885 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.8) internal successors, (189), 3 states have internal predecessors, (189), 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 199 [2022-07-21 05:18:10,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:18:10,890 INFO L225 Difference]: With dead ends: 933 [2022-07-21 05:18:10,890 INFO L226 Difference]: Without dead ends: 549 [2022-07-21 05:18:10,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-21 05:18:10,894 INFO L413 NwaCegarLoop]: 691 mSDtfsCounter, 1082 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 757 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1106 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-21 05:18:10,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1106 Valid, 1103 Invalid, 817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 757 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-21 05:18:10,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2022-07-21 05:18:10,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 398. [2022-07-21 05:18:10,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 365 states have (on average 1.5698630136986302) internal successors, (573), 366 states have internal predecessors, (573), 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 05:18:10,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 625 transitions. [2022-07-21 05:18:10,946 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 625 transitions. Word has length 199 [2022-07-21 05:18:10,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:18:10,947 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 625 transitions. [2022-07-21 05:18:10,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.8) internal successors, (189), 3 states have internal predecessors, (189), 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 05:18:10,947 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 625 transitions. [2022-07-21 05:18:10,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-21 05:18:10,950 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:18:10,950 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:18:10,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 05:18:10,950 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:18:10,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:18:10,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1205075717, now seen corresponding path program 1 times [2022-07-21 05:18:10,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:18:10,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418819133] [2022-07-21 05:18:10,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:18:10,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:18:10,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:10,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 05:18:11,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:11,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 05:18:11,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:11,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 05:18:11,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:11,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-21 05:18:11,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:11,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-21 05:18:11,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:11,147 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 05:18:11,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:18:11,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418819133] [2022-07-21 05:18:11,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418819133] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:18:11,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:18:11,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 05:18:11,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744681027] [2022-07-21 05:18:11,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:18:11,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 05:18:11,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:18:11,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 05:18:11,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 05:18:11,151 INFO L87 Difference]: Start difference. First operand 398 states and 625 transitions. Second operand has 6 states, 6 states have (on average 31.5) internal successors, (189), 4 states have internal predecessors, (189), 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 05:18:14,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:18:14,167 INFO L93 Difference]: Finished difference Result 1473 states and 2378 transitions. [2022-07-21 05:18:14,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 05:18:14,168 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.5) internal successors, (189), 4 states have internal predecessors, (189), 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 199 [2022-07-21 05:18:14,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:18:14,175 INFO L225 Difference]: With dead ends: 1473 [2022-07-21 05:18:14,175 INFO L226 Difference]: Without dead ends: 1096 [2022-07-21 05:18:14,177 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 05:18:14,178 INFO L413 NwaCegarLoop]: 745 mSDtfsCounter, 1641 mSDsluCounter, 996 mSDsCounter, 0 mSdLazyCounter, 2111 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1660 SdHoareTripleChecker+Valid, 1741 SdHoareTripleChecker+Invalid, 2228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 2111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-21 05:18:14,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1660 Valid, 1741 Invalid, 2228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 2111 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-21 05:18:14,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2022-07-21 05:18:14,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 794. [2022-07-21 05:18:14,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 733 states have (on average 1.5811732605729878) internal successors, (1159), 735 states have internal predecessors, (1159), 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 05:18:14,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1256 transitions. [2022-07-21 05:18:14,245 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1256 transitions. Word has length 199 [2022-07-21 05:18:14,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:18:14,246 INFO L495 AbstractCegarLoop]: Abstraction has 794 states and 1256 transitions. [2022-07-21 05:18:14,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.5) internal successors, (189), 4 states have internal predecessors, (189), 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 05:18:14,246 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1256 transitions. [2022-07-21 05:18:14,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-21 05:18:14,249 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:18:14,249 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:18:14,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 05:18:14,250 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:18:14,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:18:14,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1435906438, now seen corresponding path program 1 times [2022-07-21 05:18:14,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:18:14,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965622642] [2022-07-21 05:18:14,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:18:14,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:18:14,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:14,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 05:18:14,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:14,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 05:18:14,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:14,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 05:18:14,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:14,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-21 05:18:14,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:14,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-21 05:18:14,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:14,449 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 05:18:14,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:18:14,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965622642] [2022-07-21 05:18:14,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965622642] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:18:14,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:18:14,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 05:18:14,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371104150] [2022-07-21 05:18:14,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:18:14,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 05:18:14,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:18:14,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 05:18:14,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 05:18:14,453 INFO L87 Difference]: Start difference. First operand 794 states and 1256 transitions. Second operand has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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 05:18:18,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:18:18,898 INFO L93 Difference]: Finished difference Result 2629 states and 4211 transitions. [2022-07-21 05:18:18,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 05:18:18,900 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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 199 [2022-07-21 05:18:18,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:18:18,910 INFO L225 Difference]: With dead ends: 2629 [2022-07-21 05:18:18,910 INFO L226 Difference]: Without dead ends: 1856 [2022-07-21 05:18:18,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-21 05:18:18,914 INFO L413 NwaCegarLoop]: 1304 mSDtfsCounter, 1811 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 4155 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1830 SdHoareTripleChecker+Valid, 3287 SdHoareTripleChecker+Invalid, 4237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 4155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-07-21 05:18:18,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1830 Valid, 3287 Invalid, 4237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 4155 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-07-21 05:18:18,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1856 states. [2022-07-21 05:18:19,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1856 to 1162. [2022-07-21 05:18:19,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1162 states, 1073 states have (on average 1.5740913327120223) internal successors, (1689), 1076 states have internal predecessors, (1689), 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 05:18:19,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 1830 transitions. [2022-07-21 05:18:19,015 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 1830 transitions. Word has length 199 [2022-07-21 05:18:19,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:18:19,016 INFO L495 AbstractCegarLoop]: Abstraction has 1162 states and 1830 transitions. [2022-07-21 05:18:19,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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 05:18:19,017 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 1830 transitions. [2022-07-21 05:18:19,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-21 05:18:19,024 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:18:19,024 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:18:19,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 05:18:19,024 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:18:19,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:18:19,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1455447560, now seen corresponding path program 1 times [2022-07-21 05:18:19,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:18:19,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416892636] [2022-07-21 05:18:19,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:18:19,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:18:19,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:19,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 05:18:19,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:19,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 05:18:19,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:19,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 05:18:19,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:19,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-21 05:18:19,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:19,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-21 05:18:19,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:19,196 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 05:18:19,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:18:19,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416892636] [2022-07-21 05:18:19,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416892636] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:18:19,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:18:19,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 05:18:19,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247751053] [2022-07-21 05:18:19,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:18:19,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 05:18:19,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:18:19,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 05:18:19,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 05:18:19,200 INFO L87 Difference]: Start difference. First operand 1162 states and 1830 transitions. Second operand has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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 05:18:23,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:18:23,514 INFO L93 Difference]: Finished difference Result 4050 states and 6479 transitions. [2022-07-21 05:18:23,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 05:18:23,515 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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 199 [2022-07-21 05:18:23,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:18:23,533 INFO L225 Difference]: With dead ends: 4050 [2022-07-21 05:18:23,533 INFO L226 Difference]: Without dead ends: 2909 [2022-07-21 05:18:23,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-21 05:18:23,543 INFO L413 NwaCegarLoop]: 1292 mSDtfsCounter, 1805 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 4144 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1824 SdHoareTripleChecker+Valid, 3275 SdHoareTripleChecker+Invalid, 4228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 4144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-07-21 05:18:23,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1824 Valid, 3275 Invalid, 4228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 4144 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-07-21 05:18:23,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2909 states. [2022-07-21 05:18:23,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2909 to 1902. [2022-07-21 05:18:23,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1902 states, 1757 states have (on average 1.5685828116107001) internal successors, (2756), 1762 states have internal predecessors, (2756), 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 05:18:23,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1902 states to 1902 states and 2989 transitions. [2022-07-21 05:18:23,735 INFO L78 Accepts]: Start accepts. Automaton has 1902 states and 2989 transitions. Word has length 199 [2022-07-21 05:18:23,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:18:23,735 INFO L495 AbstractCegarLoop]: Abstraction has 1902 states and 2989 transitions. [2022-07-21 05:18:23,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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 05:18:23,736 INFO L276 IsEmpty]: Start isEmpty. Operand 1902 states and 2989 transitions. [2022-07-21 05:18:23,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-21 05:18:23,740 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:18:23,740 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:18:23,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 05:18:23,741 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:18:23,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:18:23,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1982841610, now seen corresponding path program 1 times [2022-07-21 05:18:23,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:18:23,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709258165] [2022-07-21 05:18:23,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:18:23,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:18:23,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:23,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 05:18:23,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:23,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 05:18:23,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:23,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 05:18:23,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:23,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-21 05:18:23,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:23,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-21 05:18:23,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:23,920 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 05:18:23,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:18:23,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709258165] [2022-07-21 05:18:23,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709258165] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:18:23,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:18:23,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 05:18:23,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045336790] [2022-07-21 05:18:23,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:18:23,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 05:18:23,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:18:23,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 05:18:23,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 05:18:23,923 INFO L87 Difference]: Start difference. First operand 1902 states and 2989 transitions. Second operand has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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 05:18:28,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:18:28,075 INFO L93 Difference]: Finished difference Result 6790 states and 10822 transitions. [2022-07-21 05:18:28,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 05:18:28,075 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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 199 [2022-07-21 05:18:28,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:18:28,097 INFO L225 Difference]: With dead ends: 6790 [2022-07-21 05:18:28,097 INFO L226 Difference]: Without dead ends: 4909 [2022-07-21 05:18:28,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-21 05:18:28,104 INFO L413 NwaCegarLoop]: 1287 mSDtfsCounter, 1804 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 4136 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1823 SdHoareTripleChecker+Valid, 3270 SdHoareTripleChecker+Invalid, 4220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 4136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-07-21 05:18:28,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1823 Valid, 3270 Invalid, 4220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 4136 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-07-21 05:18:28,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4909 states. [2022-07-21 05:18:28,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4909 to 3383. [2022-07-21 05:18:28,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3383 states, 3126 states have (on average 1.564299424184261) internal successors, (4890), 3135 states have internal predecessors, (4890), 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 05:18:28,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3383 states to 3383 states and 5313 transitions. [2022-07-21 05:18:28,378 INFO L78 Accepts]: Start accepts. Automaton has 3383 states and 5313 transitions. Word has length 199 [2022-07-21 05:18:28,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:18:28,379 INFO L495 AbstractCegarLoop]: Abstraction has 3383 states and 5313 transitions. [2022-07-21 05:18:28,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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 05:18:28,379 INFO L276 IsEmpty]: Start isEmpty. Operand 3383 states and 5313 transitions. [2022-07-21 05:18:28,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-21 05:18:28,384 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:18:28,384 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:18:28,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 05:18:28,385 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:18:28,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:18:28,386 INFO L85 PathProgramCache]: Analyzing trace with hash 614381000, now seen corresponding path program 1 times [2022-07-21 05:18:28,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:18:28,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186460915] [2022-07-21 05:18:28,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:18:28,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:18:28,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:28,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 05:18:28,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:28,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 05:18:28,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:28,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 05:18:28,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:28,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-21 05:18:28,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:28,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-21 05:18:28,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:28,622 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 05:18:28,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:18:28,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186460915] [2022-07-21 05:18:28,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186460915] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:18:28,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:18:28,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 05:18:28,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582480640] [2022-07-21 05:18:28,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:18:28,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 05:18:28,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:18:28,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 05:18:28,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 05:18:28,625 INFO L87 Difference]: Start difference. First operand 3383 states and 5313 transitions. Second operand has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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 05:18:32,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:18:32,917 INFO L93 Difference]: Finished difference Result 12269 states and 19524 transitions. [2022-07-21 05:18:32,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 05:18:32,917 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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 199 [2022-07-21 05:18:32,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:18:32,955 INFO L225 Difference]: With dead ends: 12269 [2022-07-21 05:18:32,956 INFO L226 Difference]: Without dead ends: 8907 [2022-07-21 05:18:32,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-21 05:18:32,971 INFO L413 NwaCegarLoop]: 1282 mSDtfsCounter, 1803 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 4128 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1822 SdHoareTripleChecker+Valid, 3265 SdHoareTripleChecker+Invalid, 4212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 4128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-07-21 05:18:32,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1822 Valid, 3265 Invalid, 4212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 4128 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-07-21 05:18:32,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8907 states. [2022-07-21 05:18:33,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8907 to 6352. [2022-07-21 05:18:33,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6352 states, 5871 states have (on average 1.5615738375063872) internal successors, (9168), 5888 states have internal predecessors, (9168), 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 05:18:33,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6352 states to 6352 states and 9989 transitions. [2022-07-21 05:18:33,416 INFO L78 Accepts]: Start accepts. Automaton has 6352 states and 9989 transitions. Word has length 199 [2022-07-21 05:18:33,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:18:33,416 INFO L495 AbstractCegarLoop]: Abstraction has 6352 states and 9989 transitions. [2022-07-21 05:18:33,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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 05:18:33,417 INFO L276 IsEmpty]: Start isEmpty. Operand 6352 states and 9989 transitions. [2022-07-21 05:18:33,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-21 05:18:33,449 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:18:33,450 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:18:33,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 05:18:33,450 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:18:33,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:18:33,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1262973770, now seen corresponding path program 1 times [2022-07-21 05:18:33,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:18:33,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555360943] [2022-07-21 05:18:33,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:18:33,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:18:33,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:33,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 05:18:33,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:33,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 05:18:33,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:33,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 05:18:33,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:33,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-21 05:18:33,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:33,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-21 05:18:33,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:33,624 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 05:18:33,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:18:33,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555360943] [2022-07-21 05:18:33,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555360943] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:18:33,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:18:33,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 05:18:33,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993909482] [2022-07-21 05:18:33,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:18:33,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 05:18:33,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:18:33,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 05:18:33,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 05:18:33,627 INFO L87 Difference]: Start difference. First operand 6352 states and 9989 transitions. Second operand has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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 05:18:38,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:18:38,447 INFO L93 Difference]: Finished difference Result 23228 states and 36990 transitions. [2022-07-21 05:18:38,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 05:18:38,448 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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 199 [2022-07-21 05:18:38,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:18:38,549 INFO L225 Difference]: With dead ends: 23228 [2022-07-21 05:18:38,550 INFO L226 Difference]: Without dead ends: 16897 [2022-07-21 05:18:38,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-21 05:18:38,575 INFO L413 NwaCegarLoop]: 1277 mSDtfsCounter, 1802 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 4120 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1821 SdHoareTripleChecker+Valid, 3260 SdHoareTripleChecker+Invalid, 4204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 4120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:18:38,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1821 Valid, 3260 Invalid, 4204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 4120 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-21 05:18:38,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16897 states. [2022-07-21 05:18:39,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16897 to 12305. [2022-07-21 05:18:39,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12305 states, 11376 states have (on average 1.5599507735583684) internal successors, (17746), 11409 states have internal predecessors, (17746), 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 05:18:39,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12305 states to 12305 states and 19417 transitions. [2022-07-21 05:18:39,738 INFO L78 Accepts]: Start accepts. Automaton has 12305 states and 19417 transitions. Word has length 199 [2022-07-21 05:18:39,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:18:39,738 INFO L495 AbstractCegarLoop]: Abstraction has 12305 states and 19417 transitions. [2022-07-21 05:18:39,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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 05:18:39,739 INFO L276 IsEmpty]: Start isEmpty. Operand 12305 states and 19417 transitions. [2022-07-21 05:18:39,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-21 05:18:39,760 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:18:39,761 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:18:39,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 05:18:39,761 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:18:39,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:18:39,762 INFO L85 PathProgramCache]: Analyzing trace with hash -240124536, now seen corresponding path program 1 times [2022-07-21 05:18:39,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:18:39,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114417339] [2022-07-21 05:18:39,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:18:39,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:18:39,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:39,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 05:18:39,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:39,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 05:18:39,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:39,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 05:18:39,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:39,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-21 05:18:39,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:39,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-21 05:18:39,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:39,933 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 05:18:39,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:18:39,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114417339] [2022-07-21 05:18:39,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114417339] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:18:39,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:18:39,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 05:18:39,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727292717] [2022-07-21 05:18:39,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:18:39,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 05:18:39,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:18:39,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 05:18:39,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-21 05:18:39,936 INFO L87 Difference]: Start difference. First operand 12305 states and 19417 transitions. Second operand has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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 05:18:42,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:18:42,853 INFO L93 Difference]: Finished difference Result 29254 states and 46854 transitions. [2022-07-21 05:18:42,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 05:18:42,854 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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 199 [2022-07-21 05:18:42,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:18:42,917 INFO L225 Difference]: With dead ends: 29254 [2022-07-21 05:18:42,918 INFO L226 Difference]: Without dead ends: 16970 [2022-07-21 05:18:42,958 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 05:18:42,961 INFO L413 NwaCegarLoop]: 629 mSDtfsCounter, 1264 mSDsluCounter, 984 mSDsCounter, 0 mSdLazyCounter, 1464 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1284 SdHoareTripleChecker+Valid, 1613 SdHoareTripleChecker+Invalid, 1550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-21 05:18:42,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1284 Valid, 1613 Invalid, 1550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1464 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-21 05:18:42,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16970 states. [2022-07-21 05:18:43,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16970 to 12305. [2022-07-21 05:18:43,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12305 states, 11376 states have (on average 1.557049929676512) internal successors, (17713), 11409 states have internal predecessors, (17713), 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 05:18:43,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12305 states to 12305 states and 19384 transitions. [2022-07-21 05:18:43,901 INFO L78 Accepts]: Start accepts. Automaton has 12305 states and 19384 transitions. Word has length 199 [2022-07-21 05:18:43,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:18:43,902 INFO L495 AbstractCegarLoop]: Abstraction has 12305 states and 19384 transitions. [2022-07-21 05:18:43,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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 05:18:43,902 INFO L276 IsEmpty]: Start isEmpty. Operand 12305 states and 19384 transitions. [2022-07-21 05:18:43,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-21 05:18:43,921 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:18:43,921 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:18:43,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 05:18:43,922 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:18:43,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:18:43,922 INFO L85 PathProgramCache]: Analyzing trace with hash -150064246, now seen corresponding path program 1 times [2022-07-21 05:18:43,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:18:43,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153547268] [2022-07-21 05:18:43,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:18:43,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:18:43,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:43,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 05:18:43,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:44,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 05:18:44,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:44,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 05:18:44,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:44,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-21 05:18:44,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:44,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-21 05:18:44,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:44,112 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 05:18:44,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:18:44,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153547268] [2022-07-21 05:18:44,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153547268] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:18:44,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:18:44,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 05:18:44,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157283473] [2022-07-21 05:18:44,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:18:44,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 05:18:44,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:18:44,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 05:18:44,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 05:18:44,114 INFO L87 Difference]: Start difference. First operand 12305 states and 19384 transitions. Second operand has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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 05:18:50,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:18:50,758 INFO L93 Difference]: Finished difference Result 45113 states and 71884 transitions. [2022-07-21 05:18:50,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 05:18:50,759 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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 199 [2022-07-21 05:18:50,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:18:50,902 INFO L225 Difference]: With dead ends: 45113 [2022-07-21 05:18:50,902 INFO L226 Difference]: Without dead ends: 32829 [2022-07-21 05:18:50,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-21 05:18:50,944 INFO L413 NwaCegarLoop]: 1266 mSDtfsCounter, 1794 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 4093 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1813 SdHoareTripleChecker+Valid, 3249 SdHoareTripleChecker+Invalid, 4177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 4093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-07-21 05:18:50,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1813 Valid, 3249 Invalid, 4177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 4093 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-07-21 05:18:50,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32829 states. [2022-07-21 05:18:53,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32829 to 24275. [2022-07-21 05:18:53,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24275 states, 22450 states have (on average 1.5553229398663697) internal successors, (34917), 22515 states have internal predecessors, (34917), 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 05:18:53,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24275 states to 24275 states and 38450 transitions. [2022-07-21 05:18:53,188 INFO L78 Accepts]: Start accepts. Automaton has 24275 states and 38450 transitions. Word has length 199 [2022-07-21 05:18:53,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:18:53,191 INFO L495 AbstractCegarLoop]: Abstraction has 24275 states and 38450 transitions. [2022-07-21 05:18:53,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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 05:18:53,191 INFO L276 IsEmpty]: Start isEmpty. Operand 24275 states and 38450 transitions. [2022-07-21 05:18:53,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-21 05:18:53,229 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:18:53,229 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:18:53,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-21 05:18:53,230 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:18:53,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:18:53,231 INFO L85 PathProgramCache]: Analyzing trace with hash -839895736, now seen corresponding path program 1 times [2022-07-21 05:18:53,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:18:53,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775151206] [2022-07-21 05:18:53,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:18:53,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:18:53,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:53,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 05:18:53,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:53,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 05:18:53,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:53,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 05:18:53,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:53,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-21 05:18:53,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:53,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-21 05:18:53,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:18:53,409 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 05:18:53,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:18:53,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775151206] [2022-07-21 05:18:53,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775151206] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:18:53,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:18:53,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 05:18:53,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495029732] [2022-07-21 05:18:53,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:18:53,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 05:18:53,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:18:53,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 05:18:53,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 05:18:53,412 INFO L87 Difference]: Start difference. First operand 24275 states and 38450 transitions. Second operand has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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 05:19:02,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:19:02,920 INFO L93 Difference]: Finished difference Result 88953 states and 142548 transitions. [2022-07-21 05:19:02,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 05:19:02,921 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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 199 [2022-07-21 05:19:02,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:19:03,254 INFO L225 Difference]: With dead ends: 88953 [2022-07-21 05:19:03,255 INFO L226 Difference]: Without dead ends: 64699 [2022-07-21 05:19:03,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-21 05:19:03,355 INFO L413 NwaCegarLoop]: 1259 mSDtfsCounter, 1796 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 4082 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1815 SdHoareTripleChecker+Valid, 3242 SdHoareTripleChecker+Invalid, 4169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 4082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-07-21 05:19:03,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1815 Valid, 3242 Invalid, 4169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 4082 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-07-21 05:19:03,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64699 states. [2022-07-21 05:19:07,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64699 to 48276. [2022-07-21 05:19:07,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48276 states, 44659 states have (on average 1.554333952842652) internal successors, (69415), 44788 states have internal predecessors, (69415), 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 05:19:07,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48276 states to 48276 states and 77158 transitions. [2022-07-21 05:19:07,246 INFO L78 Accepts]: Start accepts. Automaton has 48276 states and 77158 transitions. Word has length 199 [2022-07-21 05:19:07,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:19:07,247 INFO L495 AbstractCegarLoop]: Abstraction has 48276 states and 77158 transitions. [2022-07-21 05:19:07,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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 05:19:07,247 INFO L276 IsEmpty]: Start isEmpty. Operand 48276 states and 77158 transitions. [2022-07-21 05:19:07,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-21 05:19:07,311 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:19:07,312 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:19:07,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-21 05:19:07,312 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:19:07,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:19:07,313 INFO L85 PathProgramCache]: Analyzing trace with hash 2047345610, now seen corresponding path program 1 times [2022-07-21 05:19:07,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:19:07,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979555259] [2022-07-21 05:19:07,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:19:07,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:19:07,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:19:07,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 05:19:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:19:07,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 05:19:07,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:19:07,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 05:19:07,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:19:07,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-21 05:19:07,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:19:07,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-21 05:19:07,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:19:07,471 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 05:19:07,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:19:07,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979555259] [2022-07-21 05:19:07,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979555259] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:19:07,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:19:07,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 05:19:07,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955158317] [2022-07-21 05:19:07,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:19:07,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 05:19:07,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:19:07,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 05:19:07,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 05:19:07,474 INFO L87 Difference]: Start difference. First operand 48276 states and 77158 transitions. Second operand has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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 05:19:22,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:19:22,756 INFO L93 Difference]: Finished difference Result 176502 states and 285462 transitions. [2022-07-21 05:19:22,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 05:19:22,757 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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 199 [2022-07-21 05:19:22,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:19:23,348 INFO L225 Difference]: With dead ends: 176502 [2022-07-21 05:19:23,349 INFO L226 Difference]: Without dead ends: 128247 [2022-07-21 05:19:23,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-21 05:19:23,504 INFO L413 NwaCegarLoop]: 1250 mSDtfsCounter, 1791 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 4064 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1810 SdHoareTripleChecker+Valid, 3233 SdHoareTripleChecker+Invalid, 4151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 4064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:19:23,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1810 Valid, 3233 Invalid, 4151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 4064 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-21 05:19:23,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128247 states. [2022-07-21 05:19:31,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128247 to 96534. [2022-07-21 05:19:31,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96534 states, 89333 states have (on average 1.5543975910357875) internal successors, (138859), 89590 states have internal predecessors, (138859), 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 05:19:32,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96534 states to 96534 states and 156480 transitions. [2022-07-21 05:19:32,385 INFO L78 Accepts]: Start accepts. Automaton has 96534 states and 156480 transitions. Word has length 199 [2022-07-21 05:19:32,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:19:32,386 INFO L495 AbstractCegarLoop]: Abstraction has 96534 states and 156480 transitions. [2022-07-21 05:19:32,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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 05:19:32,386 INFO L276 IsEmpty]: Start isEmpty. Operand 96534 states and 156480 transitions. [2022-07-21 05:19:32,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-21 05:19:32,517 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:19:32,517 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:19:32,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-21 05:19:32,518 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:19:32,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:19:32,518 INFO L85 PathProgramCache]: Analyzing trace with hash 124095180, now seen corresponding path program 1 times [2022-07-21 05:19:32,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:19:32,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222180478] [2022-07-21 05:19:32,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:19:32,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:19:32,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:19:32,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 05:19:32,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:19:32,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 05:19:32,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:19:32,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 05:19:32,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:19:32,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-21 05:19:32,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:19:32,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-21 05:19:32,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:19:32,689 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 05:19:32,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:19:32,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222180478] [2022-07-21 05:19:32,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222180478] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:19:32,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:19:32,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 05:19:32,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641626769] [2022-07-21 05:19:32,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:19:32,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 05:19:32,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:19:32,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 05:19:32,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 05:19:32,691 INFO L87 Difference]: Start difference. First operand 96534 states and 156480 transitions. Second operand has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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)