./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/transmitter.15.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c 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.15.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 05397c7941b2acd95b1b6d02c6c64b476ab8b290a5b56301ff8db7ca1986067b --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 06:36:54,168 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 06:36:54,196 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 06:36:54,225 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 06:36:54,226 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 06:36:54,227 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 06:36:54,228 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 06:36:54,232 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 06:36:54,233 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 06:36:54,237 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 06:36:54,238 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 06:36:54,240 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 06:36:54,240 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 06:36:54,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 06:36:54,243 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 06:36:54,245 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 06:36:54,246 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 06:36:54,247 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 06:36:54,249 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 06:36:54,253 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 06:36:54,255 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 06:36:54,256 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 06:36:54,257 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 06:36:54,257 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 06:36:54,259 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 06:36:54,264 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 06:36:54,264 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 06:36:54,265 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 06:36:54,266 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 06:36:54,266 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 06:36:54,267 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 06:36:54,267 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 06:36:54,268 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 06:36:54,269 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 06:36:54,269 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 06:36:54,270 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 06:36:54,270 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 06:36:54,270 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 06:36:54,270 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 06:36:54,271 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 06:36:54,271 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 06:36:54,273 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 06:36:54,274 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 06:36:54,305 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 06:36:54,305 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 06:36:54,306 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 06:36:54,306 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 06:36:54,306 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 06:36:54,306 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 06:36:54,307 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 06:36:54,307 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 06:36:54,307 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 06:36:54,308 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 06:36:54,308 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 06:36:54,309 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 06:36:54,309 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 06:36:54,309 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 06:36:54,309 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 06:36:54,309 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 06:36:54,309 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 06:36:54,309 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 06:36:54,310 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 06:36:54,311 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 06:36:54,311 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 06:36:54,311 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 06:36:54,311 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 06:36:54,311 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 06:36:54,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 06:36:54,312 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 06:36:54,312 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 06:36:54,312 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 06:36:54,312 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 06:36:54,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 06:36:54,313 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 06:36:54,313 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 06:36:54,313 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 06:36:54,313 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05397c7941b2acd95b1b6d02c6c64b476ab8b290a5b56301ff8db7ca1986067b [2022-07-12 06:36:54,565 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 06:36:54,587 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 06:36:54,589 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 06:36:54,590 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 06:36:54,591 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 06:36:54,592 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/transmitter.15.cil.c [2022-07-12 06:36:54,648 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/886f71eb7/c4b659614d5146d49ee501416dc88931/FLAG8e4b79ef8 [2022-07-12 06:36:55,061 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 06:36:55,062 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.15.cil.c [2022-07-12 06:36:55,079 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/886f71eb7/c4b659614d5146d49ee501416dc88931/FLAG8e4b79ef8 [2022-07-12 06:36:55,094 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/886f71eb7/c4b659614d5146d49ee501416dc88931 [2022-07-12 06:36:55,096 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 06:36:55,098 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 06:36:55,100 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 06:36:55,100 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 06:36:55,103 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 06:36:55,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 06:36:55" (1/1) ... [2022-07-12 06:36:55,104 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fc4086d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:36:55, skipping insertion in model container [2022-07-12 06:36:55,104 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 06:36:55" (1/1) ... [2022-07-12 06:36:55,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 06:36:55,148 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 06:36:55,307 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.15.cil.c[706,719] [2022-07-12 06:36:55,428 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 06:36:55,435 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 06:36:55,446 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.15.cil.c[706,719] [2022-07-12 06:36:55,485 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 06:36:55,500 INFO L208 MainTranslator]: Completed translation [2022-07-12 06:36:55,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:36:55 WrapperNode [2022-07-12 06:36:55,500 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 06:36:55,501 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 06:36:55,501 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 06:36:55,501 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 06:36:55,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:36:55" (1/1) ... [2022-07-12 06:36:55,521 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:36:55" (1/1) ... [2022-07-12 06:36:55,557 INFO L137 Inliner]: procedures = 54, calls = 69, calls flagged for inlining = 38, calls inlined = 38, statements flattened = 891 [2022-07-12 06:36:55,557 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 06:36:55,558 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 06:36:55,558 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 06:36:55,558 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 06:36:55,564 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:36:55" (1/1) ... [2022-07-12 06:36:55,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:36:55" (1/1) ... [2022-07-12 06:36:55,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:36:55" (1/1) ... [2022-07-12 06:36:55,567 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:36:55" (1/1) ... [2022-07-12 06:36:55,575 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:36:55" (1/1) ... [2022-07-12 06:36:55,599 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:36:55" (1/1) ... [2022-07-12 06:36:55,601 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:36:55" (1/1) ... [2022-07-12 06:36:55,605 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 06:36:55,609 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 06:36:55,609 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 06:36:55,609 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 06:36:55,610 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:36:55" (1/1) ... [2022-07-12 06:36:55,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 06:36:55,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 06:36:55,663 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) [2022-07-12 06:36:55,672 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 [2022-07-12 06:36:55,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 06:36:55,699 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-07-12 06:36:55,699 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-07-12 06:36:55,699 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-07-12 06:36:55,699 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-07-12 06:36:55,699 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-07-12 06:36:55,699 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-07-12 06:36:55,700 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-07-12 06:36:55,701 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-07-12 06:36:55,701 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-07-12 06:36:55,701 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-07-12 06:36:55,701 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-07-12 06:36:55,702 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-07-12 06:36:55,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 06:36:55,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 06:36:55,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 06:36:55,830 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 06:36:55,832 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 06:36:56,421 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 06:36:56,434 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 06:36:56,435 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2022-07-12 06:36:56,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:36:56 BoogieIcfgContainer [2022-07-12 06:36:56,438 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 06:36:56,439 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 06:36:56,439 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 06:36:56,442 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 06:36:56,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 06:36:55" (1/3) ... [2022-07-12 06:36:56,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62807fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 06:36:56, skipping insertion in model container [2022-07-12 06:36:56,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:36:55" (2/3) ... [2022-07-12 06:36:56,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62807fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 06:36:56, skipping insertion in model container [2022-07-12 06:36:56,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:36:56" (3/3) ... [2022-07-12 06:36:56,444 INFO L111 eAbstractionObserver]: Analyzing ICFG transmitter.15.cil.c [2022-07-12 06:36:56,454 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 06:36:56,454 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 06:36:56,509 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 06:36:56,513 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@235f37a2, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@e0a1be6 [2022-07-12 06:36:56,514 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 06:36:56,518 INFO L276 IsEmpty]: Start isEmpty. Operand has 402 states, 368 states have (on average 1.6684782608695652) internal successors, (614), 370 states have internal predecessors, (614), 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) [2022-07-12 06:36:56,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-07-12 06:36:56,531 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:36:56,532 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] [2022-07-12 06:36:56,532 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:36:56,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:36:56,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1951726257, now seen corresponding path program 1 times [2022-07-12 06:36:56,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:36:56,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495135709] [2022-07-12 06:36:56,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:36:56,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:36:56,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:56,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 06:36:56,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:56,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 06:36:56,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:56,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-12 06:36:56,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:56,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-12 06:36:56,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:57,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-12 06:36:57,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:57,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:36:57,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:36:57,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495135709] [2022-07-12 06:36:57,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495135709] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:36:57,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:36:57,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 06:36:57,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553285205] [2022-07-12 06:36:57,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:36:57,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 06:36:57,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:36:57,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 06:36:57,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 06:36:57,054 INFO L87 Difference]: Start difference. First operand has 402 states, 368 states have (on average 1.6684782608695652) internal successors, (614), 370 states have internal predecessors, (614), 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 34.8) internal successors, (174), 3 states have internal predecessors, (174), 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) [2022-07-12 06:36:58,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:36:58,481 INFO L93 Difference]: Finished difference Result 948 states and 1582 transitions. [2022-07-12 06:36:58,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 06:36:58,483 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 3 states have internal predecessors, (174), 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 184 [2022-07-12 06:36:58,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:36:58,498 INFO L225 Difference]: With dead ends: 948 [2022-07-12 06:36:58,499 INFO L226 Difference]: Without dead ends: 548 [2022-07-12 06:36:58,505 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 [2022-07-12 06:36:58,508 INFO L413 NwaCegarLoop]: 695 mSDtfsCounter, 1094 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1118 SdHoareTripleChecker+Valid, 1114 SdHoareTripleChecker+Invalid, 818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-12 06:36:58,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1118 Valid, 1114 Invalid, 818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 758 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-12 06:36:58,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2022-07-12 06:36:58,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 397. [2022-07-12 06:36:58,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 364 states have (on average 1.5741758241758241) internal successors, (573), 365 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) [2022-07-12 06:36:58,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 625 transitions. [2022-07-12 06:36:58,596 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 625 transitions. Word has length 184 [2022-07-12 06:36:58,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:36:58,596 INFO L495 AbstractCegarLoop]: Abstraction has 397 states and 625 transitions. [2022-07-12 06:36:58,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 3 states have internal predecessors, (174), 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) [2022-07-12 06:36:58,597 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 625 transitions. [2022-07-12 06:36:58,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-07-12 06:36:58,605 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:36:58,605 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] [2022-07-12 06:36:58,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 06:36:58,606 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:36:58,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:36:58,607 INFO L85 PathProgramCache]: Analyzing trace with hash 352577199, now seen corresponding path program 1 times [2022-07-12 06:36:58,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:36:58,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935810185] [2022-07-12 06:36:58,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:36:58,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:36:58,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:58,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 06:36:58,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:58,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 06:36:58,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:58,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-12 06:36:58,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:58,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-12 06:36:58,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:58,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-12 06:36:58,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:58,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:36:58,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:36:58,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935810185] [2022-07-12 06:36:58,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935810185] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:36:58,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:36:58,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 06:36:58,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813362430] [2022-07-12 06:36:58,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:36:58,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 06:36:58,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:36:58,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 06:36:58,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 06:36:58,774 INFO L87 Difference]: Start difference. First operand 397 states and 625 transitions. Second operand has 5 states, 5 states have (on average 34.8) internal successors, (174), 3 states have internal predecessors, (174), 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) [2022-07-12 06:37:00,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:37:00,018 INFO L93 Difference]: Finished difference Result 931 states and 1486 transitions. [2022-07-12 06:37:00,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 06:37:00,019 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 3 states have internal predecessors, (174), 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 184 [2022-07-12 06:37:00,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:37:00,022 INFO L225 Difference]: With dead ends: 931 [2022-07-12 06:37:00,023 INFO L226 Difference]: Without dead ends: 548 [2022-07-12 06:37:00,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 06:37:00,025 INFO L413 NwaCegarLoop]: 690 mSDtfsCounter, 1081 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 757 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1105 SdHoareTripleChecker+Valid, 1100 SdHoareTripleChecker+Invalid, 817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-12 06:37:00,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1105 Valid, 1100 Invalid, 817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 757 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-12 06:37:00,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2022-07-12 06:37:00,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 397. [2022-07-12 06:37:00,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 364 states have (on average 1.5714285714285714) internal successors, (572), 365 states have internal predecessors, (572), 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) [2022-07-12 06:37:00,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 624 transitions. [2022-07-12 06:37:00,051 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 624 transitions. Word has length 184 [2022-07-12 06:37:00,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:37:00,051 INFO L495 AbstractCegarLoop]: Abstraction has 397 states and 624 transitions. [2022-07-12 06:37:00,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 3 states have internal predecessors, (174), 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) [2022-07-12 06:37:00,052 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 624 transitions. [2022-07-12 06:37:00,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-07-12 06:37:00,054 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:37:00,054 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] [2022-07-12 06:37:00,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 06:37:00,054 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:37:00,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:37:00,055 INFO L85 PathProgramCache]: Analyzing trace with hash 262516909, now seen corresponding path program 1 times [2022-07-12 06:37:00,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:37:00,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755387909] [2022-07-12 06:37:00,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:37:00,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:37:00,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:00,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 06:37:00,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:00,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 06:37:00,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:00,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-12 06:37:00,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:00,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-12 06:37:00,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:00,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-12 06:37:00,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:00,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:37:00,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:37:00,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755387909] [2022-07-12 06:37:00,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755387909] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:37:00,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:37:00,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 06:37:00,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530587461] [2022-07-12 06:37:00,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:37:00,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 06:37:00,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:37:00,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 06:37:00,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 06:37:00,203 INFO L87 Difference]: Start difference. First operand 397 states and 624 transitions. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 4 states have internal predecessors, (174), 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) [2022-07-12 06:37:02,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:37:02,763 INFO L93 Difference]: Finished difference Result 1470 states and 2375 transitions. [2022-07-12 06:37:02,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 06:37:02,763 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 4 states have internal predecessors, (174), 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 184 [2022-07-12 06:37:02,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:37:02,767 INFO L225 Difference]: With dead ends: 1470 [2022-07-12 06:37:02,768 INFO L226 Difference]: Without dead ends: 1094 [2022-07-12 06:37:02,769 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 [2022-07-12 06:37:02,770 INFO L413 NwaCegarLoop]: 744 mSDtfsCounter, 1640 mSDsluCounter, 992 mSDsCounter, 0 mSdLazyCounter, 2111 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1659 SdHoareTripleChecker+Valid, 1736 SdHoareTripleChecker+Invalid, 2228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 2111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-12 06:37:02,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1659 Valid, 1736 Invalid, 2228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 2111 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-12 06:37:02,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1094 states. [2022-07-12 06:37:02,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1094 to 793. [2022-07-12 06:37:02,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 793 states, 732 states have (on average 1.5819672131147542) internal successors, (1158), 734 states have internal predecessors, (1158), 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) [2022-07-12 06:37:02,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 1255 transitions. [2022-07-12 06:37:02,806 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 1255 transitions. Word has length 184 [2022-07-12 06:37:02,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:37:02,807 INFO L495 AbstractCegarLoop]: Abstraction has 793 states and 1255 transitions. [2022-07-12 06:37:02,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 4 states have internal predecessors, (174), 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) [2022-07-12 06:37:02,807 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 1255 transitions. [2022-07-12 06:37:02,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-07-12 06:37:02,808 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:37:02,808 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] [2022-07-12 06:37:02,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 06:37:02,809 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:37:02,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:37:02,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1283386444, now seen corresponding path program 1 times [2022-07-12 06:37:02,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:37:02,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109678765] [2022-07-12 06:37:02,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:37:02,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:37:02,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:02,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 06:37:02,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:02,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 06:37:02,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:02,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-12 06:37:02,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:02,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-12 06:37:02,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:02,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-12 06:37:02,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:02,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:37:02,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:37:02,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109678765] [2022-07-12 06:37:02,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109678765] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:37:02,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:37:02,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 06:37:02,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967644943] [2022-07-12 06:37:02,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:37:02,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 06:37:02,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:37:02,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 06:37:02,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 06:37:02,946 INFO L87 Difference]: Start difference. First operand 793 states and 1255 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2022-07-12 06:37:06,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:37:06,823 INFO L93 Difference]: Finished difference Result 2626 states and 4208 transitions. [2022-07-12 06:37:06,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 06:37:06,823 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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 184 [2022-07-12 06:37:06,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:37:06,830 INFO L225 Difference]: With dead ends: 2626 [2022-07-12 06:37:06,830 INFO L226 Difference]: Without dead ends: 1854 [2022-07-12 06:37:06,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-12 06:37:06,833 INFO L413 NwaCegarLoop]: 1302 mSDtfsCounter, 1810 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 4155 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1829 SdHoareTripleChecker+Valid, 3276 SdHoareTripleChecker+Invalid, 4237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 4155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-07-12 06:37:06,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1829 Valid, 3276 Invalid, 4237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 4155 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-07-12 06:37:06,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1854 states. [2022-07-12 06:37:06,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1854 to 1161. [2022-07-12 06:37:06,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1161 states, 1072 states have (on average 1.5746268656716418) internal successors, (1688), 1075 states have internal predecessors, (1688), 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) [2022-07-12 06:37:06,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1161 states to 1161 states and 1829 transitions. [2022-07-12 06:37:06,927 INFO L78 Accepts]: Start accepts. Automaton has 1161 states and 1829 transitions. Word has length 184 [2022-07-12 06:37:06,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:37:06,927 INFO L495 AbstractCegarLoop]: Abstraction has 1161 states and 1829 transitions. [2022-07-12 06:37:06,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2022-07-12 06:37:06,928 INFO L276 IsEmpty]: Start isEmpty. Operand 1161 states and 1829 transitions. [2022-07-12 06:37:06,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-07-12 06:37:06,934 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:37:06,934 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] [2022-07-12 06:37:06,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 06:37:06,934 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:37:06,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:37:06,936 INFO L85 PathProgramCache]: Analyzing trace with hash 497388554, now seen corresponding path program 1 times [2022-07-12 06:37:06,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:37:06,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35189723] [2022-07-12 06:37:06,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:37:06,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:37:06,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:06,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 06:37:06,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:07,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 06:37:07,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:07,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-12 06:37:07,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:07,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-12 06:37:07,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:07,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-12 06:37:07,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:07,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:37:07,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:37:07,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35189723] [2022-07-12 06:37:07,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35189723] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:37:07,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:37:07,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 06:37:07,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19027196] [2022-07-12 06:37:07,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:37:07,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 06:37:07,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:37:07,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 06:37:07,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 06:37:07,099 INFO L87 Difference]: Start difference. First operand 1161 states and 1829 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2022-07-12 06:37:10,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:37:10,929 INFO L93 Difference]: Finished difference Result 4047 states and 6476 transitions. [2022-07-12 06:37:10,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 06:37:10,930 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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 184 [2022-07-12 06:37:10,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:37:10,942 INFO L225 Difference]: With dead ends: 4047 [2022-07-12 06:37:10,943 INFO L226 Difference]: Without dead ends: 2907 [2022-07-12 06:37:10,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-12 06:37:10,947 INFO L413 NwaCegarLoop]: 1290 mSDtfsCounter, 1804 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 4144 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1823 SdHoareTripleChecker+Valid, 3264 SdHoareTripleChecker+Invalid, 4228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 4144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-12 06:37:10,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1823 Valid, 3264 Invalid, 4228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 4144 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-12 06:37:10,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2907 states. [2022-07-12 06:37:11,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2907 to 1901. [2022-07-12 06:37:11,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1901 states, 1756 states have (on average 1.5689066059225512) internal successors, (2755), 1761 states have internal predecessors, (2755), 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) [2022-07-12 06:37:11,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1901 states to 1901 states and 2988 transitions. [2022-07-12 06:37:11,066 INFO L78 Accepts]: Start accepts. Automaton has 1901 states and 2988 transitions. Word has length 184 [2022-07-12 06:37:11,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:37:11,079 INFO L495 AbstractCegarLoop]: Abstraction has 1901 states and 2988 transitions. [2022-07-12 06:37:11,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2022-07-12 06:37:11,089 INFO L276 IsEmpty]: Start isEmpty. Operand 1901 states and 2988 transitions. [2022-07-12 06:37:11,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-07-12 06:37:11,090 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:37:11,090 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] [2022-07-12 06:37:11,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 06:37:11,091 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:37:11,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:37:11,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1697840312, now seen corresponding path program 1 times [2022-07-12 06:37:11,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:37:11,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988012290] [2022-07-12 06:37:11,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:37:11,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:37:11,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:11,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 06:37:11,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:11,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 06:37:11,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:11,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-12 06:37:11,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:11,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-12 06:37:11,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:11,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-12 06:37:11,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:11,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:37:11,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:37:11,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988012290] [2022-07-12 06:37:11,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988012290] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:37:11,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:37:11,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 06:37:11,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004145575] [2022-07-12 06:37:11,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:37:11,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 06:37:11,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:37:11,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 06:37:11,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 06:37:11,225 INFO L87 Difference]: Start difference. First operand 1901 states and 2988 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2022-07-12 06:37:15,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:37:15,068 INFO L93 Difference]: Finished difference Result 6787 states and 10819 transitions. [2022-07-12 06:37:15,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 06:37:15,068 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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 184 [2022-07-12 06:37:15,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:37:15,085 INFO L225 Difference]: With dead ends: 6787 [2022-07-12 06:37:15,085 INFO L226 Difference]: Without dead ends: 4907 [2022-07-12 06:37:15,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-12 06:37:15,091 INFO L413 NwaCegarLoop]: 1285 mSDtfsCounter, 1803 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 4136 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1822 SdHoareTripleChecker+Valid, 3259 SdHoareTripleChecker+Invalid, 4220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 4136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-07-12 06:37:15,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1822 Valid, 3259 Invalid, 4220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 4136 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-07-12 06:37:15,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4907 states. [2022-07-12 06:37:15,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4907 to 3382. [2022-07-12 06:37:15,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3382 states, 3125 states have (on average 1.56448) internal successors, (4889), 3134 states have internal predecessors, (4889), 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) [2022-07-12 06:37:15,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3382 states to 3382 states and 5312 transitions. [2022-07-12 06:37:15,345 INFO L78 Accepts]: Start accepts. Automaton has 3382 states and 5312 transitions. Word has length 184 [2022-07-12 06:37:15,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:37:15,346 INFO L495 AbstractCegarLoop]: Abstraction has 3382 states and 5312 transitions. [2022-07-12 06:37:15,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2022-07-12 06:37:15,346 INFO L276 IsEmpty]: Start isEmpty. Operand 3382 states and 5312 transitions. [2022-07-12 06:37:15,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-07-12 06:37:15,349 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:37:15,349 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] [2022-07-12 06:37:15,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 06:37:15,350 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:37:15,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:37:15,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1353012150, now seen corresponding path program 1 times [2022-07-12 06:37:15,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:37:15,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338927802] [2022-07-12 06:37:15,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:37:15,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:37:15,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:15,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 06:37:15,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:15,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 06:37:15,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:15,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-12 06:37:15,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:15,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-12 06:37:15,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:15,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-12 06:37:15,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:15,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:37:15,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:37:15,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338927802] [2022-07-12 06:37:15,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338927802] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:37:15,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:37:15,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 06:37:15,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447056496] [2022-07-12 06:37:15,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:37:15,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 06:37:15,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:37:15,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 06:37:15,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 06:37:15,538 INFO L87 Difference]: Start difference. First operand 3382 states and 5312 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2022-07-12 06:37:19,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:37:19,674 INFO L93 Difference]: Finished difference Result 12266 states and 19521 transitions. [2022-07-12 06:37:19,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 06:37:19,675 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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 184 [2022-07-12 06:37:19,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:37:19,704 INFO L225 Difference]: With dead ends: 12266 [2022-07-12 06:37:19,705 INFO L226 Difference]: Without dead ends: 8905 [2022-07-12 06:37:19,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-12 06:37:19,715 INFO L413 NwaCegarLoop]: 1280 mSDtfsCounter, 1802 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 4128 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1821 SdHoareTripleChecker+Valid, 3254 SdHoareTripleChecker+Invalid, 4212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 4128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-07-12 06:37:19,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1821 Valid, 3254 Invalid, 4212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 4128 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-07-12 06:37:19,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8905 states. [2022-07-12 06:37:20,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8905 to 6351. [2022-07-12 06:37:20,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6351 states, 5870 states have (on average 1.5616695059625212) internal successors, (9167), 5887 states have internal predecessors, (9167), 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) [2022-07-12 06:37:20,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6351 states to 6351 states and 9988 transitions. [2022-07-12 06:37:20,112 INFO L78 Accepts]: Start accepts. Automaton has 6351 states and 9988 transitions. Word has length 184 [2022-07-12 06:37:20,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:37:20,113 INFO L495 AbstractCegarLoop]: Abstraction has 6351 states and 9988 transitions. [2022-07-12 06:37:20,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2022-07-12 06:37:20,113 INFO L276 IsEmpty]: Start isEmpty. Operand 6351 states and 9988 transitions. [2022-07-12 06:37:20,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-07-12 06:37:20,116 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:37:20,116 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] [2022-07-12 06:37:20,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 06:37:20,116 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:37:20,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:37:20,117 INFO L85 PathProgramCache]: Analyzing trace with hash -372057336, now seen corresponding path program 1 times [2022-07-12 06:37:20,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:37:20,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884400172] [2022-07-12 06:37:20,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:37:20,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:37:20,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:20,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 06:37:20,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:20,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 06:37:20,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:20,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-12 06:37:20,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:20,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-12 06:37:20,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:20,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-12 06:37:20,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:20,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:37:20,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:37:20,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884400172] [2022-07-12 06:37:20,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884400172] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:37:20,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:37:20,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 06:37:20,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7439491] [2022-07-12 06:37:20,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:37:20,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 06:37:20,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:37:20,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 06:37:20,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 06:37:20,238 INFO L87 Difference]: Start difference. First operand 6351 states and 9988 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2022-07-12 06:37:24,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:37:24,941 INFO L93 Difference]: Finished difference Result 23225 states and 36987 transitions. [2022-07-12 06:37:24,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 06:37:24,942 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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 184 [2022-07-12 06:37:24,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:37:25,008 INFO L225 Difference]: With dead ends: 23225 [2022-07-12 06:37:25,008 INFO L226 Difference]: Without dead ends: 16895 [2022-07-12 06:37:25,027 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 [2022-07-12 06:37:25,028 INFO L413 NwaCegarLoop]: 1275 mSDtfsCounter, 1801 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 4120 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1820 SdHoareTripleChecker+Valid, 3249 SdHoareTripleChecker+Invalid, 4204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 4120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-07-12 06:37:25,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1820 Valid, 3249 Invalid, 4204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 4120 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-07-12 06:37:25,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16895 states. [2022-07-12 06:37:25,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16895 to 12304. [2022-07-12 06:37:25,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12304 states, 11375 states have (on average 1.56) internal successors, (17745), 11408 states have internal predecessors, (17745), 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) [2022-07-12 06:37:25,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12304 states to 12304 states and 19416 transitions. [2022-07-12 06:37:25,880 INFO L78 Accepts]: Start accepts. Automaton has 12304 states and 19416 transitions. Word has length 184 [2022-07-12 06:37:25,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:37:25,881 INFO L495 AbstractCegarLoop]: Abstraction has 12304 states and 19416 transitions. [2022-07-12 06:37:25,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2022-07-12 06:37:25,882 INFO L276 IsEmpty]: Start isEmpty. Operand 12304 states and 19416 transitions. [2022-07-12 06:37:25,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-07-12 06:37:25,886 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:37:25,887 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:37:25,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 06:37:25,887 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:37:25,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:37:25,888 INFO L85 PathProgramCache]: Analyzing trace with hash -2141528950, now seen corresponding path program 1 times [2022-07-12 06:37:25,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:37:25,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857811157] [2022-07-12 06:37:25,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:37:25,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:37:25,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:25,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 06:37:25,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:25,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 06:37:25,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:25,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-12 06:37:26,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:26,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-12 06:37:26,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:26,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-12 06:37:26,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:26,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:37:26,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:37:26,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857811157] [2022-07-12 06:37:26,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857811157] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:37:26,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:37:26,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 06:37:26,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020260390] [2022-07-12 06:37:26,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:37:26,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 06:37:26,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:37:26,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 06:37:26,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-12 06:37:26,019 INFO L87 Difference]: Start difference. First operand 12304 states and 19416 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2022-07-12 06:37:28,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:37:28,710 INFO L93 Difference]: Finished difference Result 29252 states and 46852 transitions. [2022-07-12 06:37:28,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 06:37:28,711 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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 184 [2022-07-12 06:37:28,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:37:28,758 INFO L225 Difference]: With dead ends: 29252 [2022-07-12 06:37:28,758 INFO L226 Difference]: Without dead ends: 16969 [2022-07-12 06:37:28,790 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 [2022-07-12 06:37:28,793 INFO L413 NwaCegarLoop]: 628 mSDtfsCounter, 1263 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 1464 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1283 SdHoareTripleChecker+Valid, 1608 SdHoareTripleChecker+Invalid, 1550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-12 06:37:28,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1283 Valid, 1608 Invalid, 1550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1464 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-12 06:37:28,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16969 states. [2022-07-12 06:37:29,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16969 to 12304. [2022-07-12 06:37:29,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12304 states, 11375 states have (on average 1.5570989010989011) internal successors, (17712), 11408 states have internal predecessors, (17712), 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) [2022-07-12 06:37:29,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12304 states to 12304 states and 19383 transitions. [2022-07-12 06:37:29,733 INFO L78 Accepts]: Start accepts. Automaton has 12304 states and 19383 transitions. Word has length 184 [2022-07-12 06:37:29,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:37:29,734 INFO L495 AbstractCegarLoop]: Abstraction has 12304 states and 19383 transitions. [2022-07-12 06:37:29,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2022-07-12 06:37:29,734 INFO L276 IsEmpty]: Start isEmpty. Operand 12304 states and 19383 transitions. [2022-07-12 06:37:29,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-07-12 06:37:29,739 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:37:29,739 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] [2022-07-12 06:37:29,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 06:37:29,740 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:37:29,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:37:29,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1542169288, now seen corresponding path program 1 times [2022-07-12 06:37:29,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:37:29,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21715813] [2022-07-12 06:37:29,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:37:29,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:37:29,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:29,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 06:37:29,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:29,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 06:37:29,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:29,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-12 06:37:29,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:29,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-12 06:37:29,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:29,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-12 06:37:29,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:29,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:37:29,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:37:29,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21715813] [2022-07-12 06:37:29,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21715813] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:37:29,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:37:29,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 06:37:29,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557744681] [2022-07-12 06:37:29,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:37:29,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 06:37:29,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:37:29,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 06:37:29,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 06:37:29,863 INFO L87 Difference]: Start difference. First operand 12304 states and 19383 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2022-07-12 06:37:35,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:37:35,915 INFO L93 Difference]: Finished difference Result 45110 states and 71881 transitions. [2022-07-12 06:37:35,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 06:37:35,916 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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 184 [2022-07-12 06:37:35,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:37:36,014 INFO L225 Difference]: With dead ends: 45110 [2022-07-12 06:37:36,014 INFO L226 Difference]: Without dead ends: 32827 [2022-07-12 06:37:36,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-12 06:37:36,047 INFO L413 NwaCegarLoop]: 1264 mSDtfsCounter, 1793 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 4093 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1812 SdHoareTripleChecker+Valid, 3238 SdHoareTripleChecker+Invalid, 4177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 4093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-12 06:37:36,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1812 Valid, 3238 Invalid, 4177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 4093 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-12 06:37:36,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32827 states. [2022-07-12 06:37:37,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32827 to 24274. [2022-07-12 06:37:37,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24274 states, 22449 states have (on average 1.5553476769566572) internal successors, (34916), 22514 states have internal predecessors, (34916), 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) [2022-07-12 06:37:37,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24274 states to 24274 states and 38449 transitions. [2022-07-12 06:37:37,949 INFO L78 Accepts]: Start accepts. Automaton has 24274 states and 38449 transitions. Word has length 184 [2022-07-12 06:37:37,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:37:37,949 INFO L495 AbstractCegarLoop]: Abstraction has 24274 states and 38449 transitions. [2022-07-12 06:37:37,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2022-07-12 06:37:37,950 INFO L276 IsEmpty]: Start isEmpty. Operand 24274 states and 38449 transitions. [2022-07-12 06:37:37,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-07-12 06:37:37,958 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:37:37,958 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] [2022-07-12 06:37:37,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-12 06:37:37,958 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:37:37,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:37:37,958 INFO L85 PathProgramCache]: Analyzing trace with hash 136977610, now seen corresponding path program 1 times [2022-07-12 06:37:37,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:37:37,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098061962] [2022-07-12 06:37:37,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:37:37,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:37:37,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:37,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 06:37:37,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:38,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 06:37:38,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:38,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-12 06:37:38,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:38,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-12 06:37:38,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:38,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-12 06:37:38,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:38,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:37:38,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:37:38,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098061962] [2022-07-12 06:37:38,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098061962] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:37:38,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:37:38,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 06:37:38,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191095781] [2022-07-12 06:37:38,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:37:38,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 06:37:38,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:37:38,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 06:37:38,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 06:37:38,076 INFO L87 Difference]: Start difference. First operand 24274 states and 38449 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2022-07-12 06:37:47,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:37:47,086 INFO L93 Difference]: Finished difference Result 88950 states and 142545 transitions. [2022-07-12 06:37:47,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 06:37:47,087 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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 184 [2022-07-12 06:37:47,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:37:47,527 INFO L225 Difference]: With dead ends: 88950 [2022-07-12 06:37:47,527 INFO L226 Difference]: Without dead ends: 64697 [2022-07-12 06:37:47,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-12 06:37:47,585 INFO L413 NwaCegarLoop]: 1257 mSDtfsCounter, 1795 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 4082 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1814 SdHoareTripleChecker+Valid, 3231 SdHoareTripleChecker+Invalid, 4169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 4082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-12 06:37:47,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1814 Valid, 3231 Invalid, 4169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 4082 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-12 06:37:47,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64697 states. [2022-07-12 06:37:50,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64697 to 48275. [2022-07-12 06:37:50,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48275 states, 44658 states have (on average 1.5543463657127503) internal successors, (69414), 44787 states have internal predecessors, (69414), 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) [2022-07-12 06:37:51,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48275 states to 48275 states and 77157 transitions. [2022-07-12 06:37:51,128 INFO L78 Accepts]: Start accepts. Automaton has 48275 states and 77157 transitions. Word has length 184 [2022-07-12 06:37:51,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:37:51,128 INFO L495 AbstractCegarLoop]: Abstraction has 48275 states and 77157 transitions. [2022-07-12 06:37:51,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2022-07-12 06:37:51,128 INFO L276 IsEmpty]: Start isEmpty. Operand 48275 states and 77157 transitions. [2022-07-12 06:37:51,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-07-12 06:37:51,145 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:37:51,146 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] [2022-07-12 06:37:51,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 06:37:51,146 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:37:51,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:37:51,147 INFO L85 PathProgramCache]: Analyzing trace with hash 2031311496, now seen corresponding path program 1 times [2022-07-12 06:37:51,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:37:51,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810751640] [2022-07-12 06:37:51,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:37:51,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:37:51,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:51,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 06:37:51,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:51,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 06:37:51,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:51,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-12 06:37:51,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:51,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-12 06:37:51,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:51,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-12 06:37:51,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:51,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:37:51,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:37:51,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810751640] [2022-07-12 06:37:51,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810751640] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:37:51,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:37:51,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 06:37:51,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969347055] [2022-07-12 06:37:51,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:37:51,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 06:37:51,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:37:51,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 06:37:51,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 06:37:51,324 INFO L87 Difference]: Start difference. First operand 48275 states and 77157 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2022-07-12 06:38:06,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:38:06,127 INFO L93 Difference]: Finished difference Result 176499 states and 285459 transitions. [2022-07-12 06:38:06,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 06:38:06,128 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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 184 [2022-07-12 06:38:06,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:38:06,804 INFO L225 Difference]: With dead ends: 176499 [2022-07-12 06:38:06,804 INFO L226 Difference]: Without dead ends: 128245 [2022-07-12 06:38:06,946 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 [2022-07-12 06:38:06,946 INFO L413 NwaCegarLoop]: 1248 mSDtfsCounter, 1790 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 4064 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1809 SdHoareTripleChecker+Valid, 3222 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 [2022-07-12 06:38:06,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1809 Valid, 3222 Invalid, 4151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 4064 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-12 06:38:07,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128245 states. [2022-07-12 06:38:14,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128245 to 96533. [2022-07-12 06:38:14,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96533 states, 89332 states have (on average 1.554403797071598) internal successors, (138858), 89589 states have internal predecessors, (138858), 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) [2022-07-12 06:38:14,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96533 states to 96533 states and 156479 transitions. [2022-07-12 06:38:14,885 INFO L78 Accepts]: Start accepts. Automaton has 96533 states and 156479 transitions. Word has length 184 [2022-07-12 06:38:14,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:38:14,886 INFO L495 AbstractCegarLoop]: Abstraction has 96533 states and 156479 transitions. [2022-07-12 06:38:14,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2022-07-12 06:38:14,886 INFO L276 IsEmpty]: Start isEmpty. Operand 96533 states and 156479 transitions. [2022-07-12 06:38:14,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-07-12 06:38:14,912 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:38:14,912 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] [2022-07-12 06:38:14,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-12 06:38:14,913 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:38:14,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:38:14,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1108144070, now seen corresponding path program 1 times [2022-07-12 06:38:14,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:38:14,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222445727] [2022-07-12 06:38:14,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:38:14,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:38:14,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:38:14,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 06:38:14,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:38:14,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 06:38:14,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:38:14,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-12 06:38:15,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:38:15,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-12 06:38:15,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:38:15,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-12 06:38:15,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:38:15,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:38:15,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:38:15,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222445727] [2022-07-12 06:38:15,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222445727] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:38:15,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:38:15,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 06:38:15,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357084731] [2022-07-12 06:38:15,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:38:15,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 06:38:15,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:38:15,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 06:38:15,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 06:38:15,019 INFO L87 Difference]: Start difference. First operand 96533 states and 156479 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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)