./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label43+token_ring.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/combinations/Problem05_label43+token_ring.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 eebc57bb84d5e49c07b21e35f27ee095cb699b6ae996e22651132239fcb21755 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 08:17:26,218 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 08:17:26,219 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 08:17:26,275 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 08:17:26,279 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 08:17:26,280 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 08:17:26,282 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 08:17:26,286 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 08:17:26,294 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 08:17:26,294 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 08:17:26,295 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 08:17:26,296 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 08:17:26,297 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 08:17:26,299 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 08:17:26,300 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 08:17:26,302 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 08:17:26,304 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 08:17:26,308 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 08:17:26,309 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 08:17:26,312 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 08:17:26,316 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 08:17:26,316 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 08:17:26,317 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 08:17:26,318 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 08:17:26,319 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 08:17:26,321 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 08:17:26,322 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 08:17:26,322 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 08:17:26,323 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 08:17:26,323 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 08:17:26,324 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 08:17:26,324 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 08:17:26,325 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 08:17:26,326 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 08:17:26,327 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 08:17:26,327 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 08:17:26,327 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 08:17:26,328 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 08:17:26,328 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 08:17:26,328 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 08:17:26,329 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 08:17:26,330 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 08:17:26,331 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 08:17:26,351 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 08:17:26,355 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 08:17:26,355 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 08:17:26,355 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 08:17:26,356 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 08:17:26,356 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 08:17:26,357 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 08:17:26,357 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 08:17:26,357 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 08:17:26,358 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 08:17:26,358 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 08:17:26,358 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 08:17:26,358 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 08:17:26,359 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 08:17:26,359 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 08:17:26,359 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 08:17:26,359 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 08:17:26,359 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 08:17:26,359 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 08:17:26,361 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 08:17:26,361 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 08:17:26,361 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 08:17:26,361 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 08:17:26,361 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 08:17:26,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 08:17:26,362 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 08:17:26,362 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 08:17:26,362 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 08:17:26,362 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 08:17:26,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 08:17:26,363 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 08:17:26,363 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 08:17:26,363 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 08:17:26,363 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eebc57bb84d5e49c07b21e35f27ee095cb699b6ae996e22651132239fcb21755 [2022-07-12 08:17:26,533 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 08:17:26,551 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 08:17:26,553 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 08:17:26,554 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 08:17:26,555 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 08:17:26,555 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label43+token_ring.15.cil.c [2022-07-12 08:17:26,618 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec2c92d0e/f050f192ba024e3d9b837c86d4981b61/FLAG5ed1c9afc [2022-07-12 08:17:27,268 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 08:17:27,269 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label43+token_ring.15.cil.c [2022-07-12 08:17:27,306 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec2c92d0e/f050f192ba024e3d9b837c86d4981b61/FLAG5ed1c9afc [2022-07-12 08:17:27,647 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec2c92d0e/f050f192ba024e3d9b837c86d4981b61 [2022-07-12 08:17:27,649 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 08:17:27,651 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 08:17:27,651 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 08:17:27,651 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 08:17:27,653 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 08:17:27,654 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 08:17:27" (1/1) ... [2022-07-12 08:17:27,655 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b477f47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:17:27, skipping insertion in model container [2022-07-12 08:17:27,655 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 08:17:27" (1/1) ... [2022-07-12 08:17:27,659 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 08:17:27,796 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 08:17:28,941 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label43+token_ring.15.cil.c[381679,381692] [2022-07-12 08:17:28,959 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label43+token_ring.15.cil.c[383339,383352] [2022-07-12 08:17:29,159 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 08:17:29,167 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 08:17:29,749 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label43+token_ring.15.cil.c[381679,381692] [2022-07-12 08:17:29,752 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label43+token_ring.15.cil.c[383339,383352] [2022-07-12 08:17:29,775 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 08:17:29,820 INFO L208 MainTranslator]: Completed translation [2022-07-12 08:17:29,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:17:29 WrapperNode [2022-07-12 08:17:29,820 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 08:17:29,821 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 08:17:29,821 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 08:17:29,821 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 08:17:29,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:17:29" (1/1) ... [2022-07-12 08:17:29,927 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:17:29" (1/1) ... [2022-07-12 08:17:30,189 INFO L137 Inliner]: procedures = 70, calls = 81, calls flagged for inlining = 47, calls inlined = 47, statements flattened = 13260 [2022-07-12 08:17:30,189 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 08:17:30,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 08:17:30,190 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 08:17:30,190 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 08:17:30,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:17:29" (1/1) ... [2022-07-12 08:17:30,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:17:29" (1/1) ... [2022-07-12 08:17:30,246 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:17:29" (1/1) ... [2022-07-12 08:17:30,247 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:17:29" (1/1) ... [2022-07-12 08:17:30,424 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:17:29" (1/1) ... [2022-07-12 08:17:30,459 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:17:29" (1/1) ... [2022-07-12 08:17:30,480 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:17:29" (1/1) ... [2022-07-12 08:17:30,610 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 08:17:30,611 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 08:17:30,612 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 08:17:30,612 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 08:17:30,614 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:17:29" (1/1) ... [2022-07-12 08:17:30,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 08:17:30,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 08:17:30,654 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 08:17:30,659 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 08:17:30,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 08:17:30,691 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-07-12 08:17:30,691 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-07-12 08:17:30,691 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-07-12 08:17:30,692 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-07-12 08:17:30,692 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-07-12 08:17:30,692 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-07-12 08:17:30,692 INFO L130 BoogieDeclarations]: Found specification of procedure error [2022-07-12 08:17:30,692 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2022-07-12 08:17:30,692 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-07-12 08:17:30,692 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-07-12 08:17:30,692 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-07-12 08:17:30,693 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-07-12 08:17:30,693 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-07-12 08:17:30,693 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-07-12 08:17:30,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 08:17:30,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 08:17:30,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 08:17:30,834 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 08:17:30,835 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 08:17:35,734 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 08:17:35,762 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 08:17:35,762 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2022-07-12 08:17:35,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 08:17:35 BoogieIcfgContainer [2022-07-12 08:17:35,767 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 08:17:35,769 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 08:17:35,769 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 08:17:35,771 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 08:17:35,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 08:17:27" (1/3) ... [2022-07-12 08:17:35,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@623b792b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 08:17:35, skipping insertion in model container [2022-07-12 08:17:35,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:17:29" (2/3) ... [2022-07-12 08:17:35,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@623b792b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 08:17:35, skipping insertion in model container [2022-07-12 08:17:35,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 08:17:35" (3/3) ... [2022-07-12 08:17:35,774 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label43+token_ring.15.cil.c [2022-07-12 08:17:35,783 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 08:17:35,784 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-12 08:17:35,853 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 08:17:35,858 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@2a7abf82, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@28b96bd5 [2022-07-12 08:17:35,858 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-12 08:17:35,866 INFO L276 IsEmpty]: Start isEmpty. Operand has 2596 states, 2557 states have (on average 1.8420023464998045) internal successors, (4710), 2562 states have internal predecessors, (4710), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2022-07-12 08:17:35,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-12 08:17:35,880 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:17:35,881 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:17:35,882 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:17:35,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:17:35,885 INFO L85 PathProgramCache]: Analyzing trace with hash -842334402, now seen corresponding path program 1 times [2022-07-12 08:17:35,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:17:35,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271409311] [2022-07-12 08:17:35,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:17:35,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:17:36,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:36,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:17:36,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:36,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:17:36,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:36,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:17:36,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:36,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:17:36,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:36,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:17:36,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:36,271 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 08:17:36,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:17:36,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271409311] [2022-07-12 08:17:36,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271409311] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:17:36,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:17:36,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 08:17:36,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286585520] [2022-07-12 08:17:36,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:17:36,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 08:17:36,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:17:36,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 08:17:36,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 08:17:36,310 INFO L87 Difference]: Start difference. First operand has 2596 states, 2557 states have (on average 1.8420023464998045) internal successors, (4710), 2562 states have internal predecessors, (4710), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:17:38,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:17:38,092 INFO L93 Difference]: Finished difference Result 5336 states and 9785 transitions. [2022-07-12 08:17:38,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 08:17:38,095 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-07-12 08:17:38,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:17:38,122 INFO L225 Difference]: With dead ends: 5336 [2022-07-12 08:17:38,122 INFO L226 Difference]: Without dead ends: 2681 [2022-07-12 08:17:38,132 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 08:17:38,136 INFO L413 NwaCegarLoop]: 4737 mSDtfsCounter, 1117 mSDsluCounter, 12501 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1142 SdHoareTripleChecker+Valid, 17238 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-12 08:17:38,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1142 Valid, 17238 Invalid, 842 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [66 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-12 08:17:38,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2681 states. [2022-07-12 08:17:38,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2681 to 2528. [2022-07-12 08:17:38,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2528 states, 2491 states have (on average 1.8245684464070655) internal successors, (4545), 2494 states have internal predecessors, (4545), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-07-12 08:17:38,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2528 states to 2528 states and 4601 transitions. [2022-07-12 08:17:38,239 INFO L78 Accepts]: Start accepts. Automaton has 2528 states and 4601 transitions. Word has length 190 [2022-07-12 08:17:38,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:17:38,240 INFO L495 AbstractCegarLoop]: Abstraction has 2528 states and 4601 transitions. [2022-07-12 08:17:38,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:17:38,240 INFO L276 IsEmpty]: Start isEmpty. Operand 2528 states and 4601 transitions. [2022-07-12 08:17:38,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-12 08:17:38,247 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:17:38,247 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:17:38,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 08:17:38,248 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:17:38,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:17:38,248 INFO L85 PathProgramCache]: Analyzing trace with hash -26287172, now seen corresponding path program 1 times [2022-07-12 08:17:38,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:17:38,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604435714] [2022-07-12 08:17:38,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:17:38,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:17:38,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:38,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:17:38,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:38,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:17:38,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:38,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:17:38,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:38,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:17:38,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:38,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:17:38,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:38,453 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 08:17:38,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:17:38,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604435714] [2022-07-12 08:17:38,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604435714] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:17:38,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:17:38,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 08:17:38,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161519399] [2022-07-12 08:17:38,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:17:38,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 08:17:38,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:17:38,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 08:17:38,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 08:17:38,461 INFO L87 Difference]: Start difference. First operand 2528 states and 4601 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:17:39,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:17:39,757 INFO L93 Difference]: Finished difference Result 3071 states and 5479 transitions. [2022-07-12 08:17:39,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 08:17:39,757 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-07-12 08:17:39,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:17:39,767 INFO L225 Difference]: With dead ends: 3071 [2022-07-12 08:17:39,767 INFO L226 Difference]: Without dead ends: 2681 [2022-07-12 08:17:39,769 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 08:17:39,770 INFO L413 NwaCegarLoop]: 4667 mSDtfsCounter, 1103 mSDsluCounter, 12298 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1128 SdHoareTripleChecker+Valid, 16965 SdHoareTripleChecker+Invalid, 841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-12 08:17:39,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1128 Valid, 16965 Invalid, 841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-12 08:17:39,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2681 states. [2022-07-12 08:17:39,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2681 to 2528. [2022-07-12 08:17:39,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2528 states, 2491 states have (on average 1.8241670012043356) internal successors, (4544), 2494 states have internal predecessors, (4544), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-07-12 08:17:39,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2528 states to 2528 states and 4600 transitions. [2022-07-12 08:17:39,831 INFO L78 Accepts]: Start accepts. Automaton has 2528 states and 4600 transitions. Word has length 190 [2022-07-12 08:17:39,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:17:39,831 INFO L495 AbstractCegarLoop]: Abstraction has 2528 states and 4600 transitions. [2022-07-12 08:17:39,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:17:39,832 INFO L276 IsEmpty]: Start isEmpty. Operand 2528 states and 4600 transitions. [2022-07-12 08:17:39,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-12 08:17:39,834 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:17:39,834 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:17:39,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 08:17:39,835 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:17:39,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:17:39,835 INFO L85 PathProgramCache]: Analyzing trace with hash -674879942, now seen corresponding path program 1 times [2022-07-12 08:17:39,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:17:39,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798252998] [2022-07-12 08:17:39,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:17:39,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:17:39,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:39,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:17:39,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:39,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:17:39,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:39,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:17:39,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:39,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:17:39,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:39,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:17:39,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:39,966 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 08:17:39,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:17:39,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798252998] [2022-07-12 08:17:39,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798252998] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:17:39,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:17:39,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 08:17:39,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031330720] [2022-07-12 08:17:39,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:17:39,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 08:17:39,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:17:39,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 08:17:39,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 08:17:39,968 INFO L87 Difference]: Start difference. First operand 2528 states and 4600 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:17:42,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:17:42,785 INFO L93 Difference]: Finished difference Result 3626 states and 6383 transitions. [2022-07-12 08:17:42,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 08:17:42,786 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-07-12 08:17:42,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:17:42,797 INFO L225 Difference]: With dead ends: 3626 [2022-07-12 08:17:42,797 INFO L226 Difference]: Without dead ends: 3240 [2022-07-12 08:17:42,799 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 08:17:42,800 INFO L413 NwaCegarLoop]: 4723 mSDtfsCounter, 5636 mSDsluCounter, 12901 mSDsCounter, 0 mSdLazyCounter, 2164 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5656 SdHoareTripleChecker+Valid, 17624 SdHoareTripleChecker+Invalid, 2292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 2164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-12 08:17:42,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5656 Valid, 17624 Invalid, 2292 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [128 Valid, 2164 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-12 08:17:42,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3240 states. [2022-07-12 08:17:42,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3240 to 2933. [2022-07-12 08:17:42,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2933 states, 2867 states have (on average 1.795256365538891) internal successors, (5147), 2871 states have internal predecessors, (5147), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (52), 49 states have call predecessors, (52), 49 states have call successors, (52) [2022-07-12 08:17:42,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2933 states to 2933 states and 5250 transitions. [2022-07-12 08:17:42,879 INFO L78 Accepts]: Start accepts. Automaton has 2933 states and 5250 transitions. Word has length 190 [2022-07-12 08:17:42,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:17:42,879 INFO L495 AbstractCegarLoop]: Abstraction has 2933 states and 5250 transitions. [2022-07-12 08:17:42,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:17:42,879 INFO L276 IsEmpty]: Start isEmpty. Operand 2933 states and 5250 transitions. [2022-07-12 08:17:42,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-12 08:17:42,881 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:17:42,882 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:17:42,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 08:17:42,882 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:17:42,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:17:42,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1773060918, now seen corresponding path program 1 times [2022-07-12 08:17:42,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:17:42,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406951281] [2022-07-12 08:17:42,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:17:42,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:17:42,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:42,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:17:42,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:42,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:17:42,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:42,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:17:42,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:43,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:17:43,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:43,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:17:43,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:43,014 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 08:17:43,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:17:43,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406951281] [2022-07-12 08:17:43,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406951281] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:17:43,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:17:43,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:17:43,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984849399] [2022-07-12 08:17:43,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:17:43,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:17:43,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:17:43,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:17:43,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:17:43,017 INFO L87 Difference]: Start difference. First operand 2933 states and 5250 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:17:46,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:17:46,671 INFO L93 Difference]: Finished difference Result 4610 states and 7978 transitions. [2022-07-12 08:17:46,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 08:17:46,672 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-07-12 08:17:46,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:17:46,687 INFO L225 Difference]: With dead ends: 4610 [2022-07-12 08:17:46,688 INFO L226 Difference]: Without dead ends: 3819 [2022-07-12 08:17:46,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-12 08:17:46,693 INFO L413 NwaCegarLoop]: 5052 mSDtfsCounter, 5672 mSDsluCounter, 17876 mSDsCounter, 0 mSdLazyCounter, 3366 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5692 SdHoareTripleChecker+Valid, 22928 SdHoareTripleChecker+Invalid, 3452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 3366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-07-12 08:17:46,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5692 Valid, 22928 Invalid, 3452 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [86 Valid, 3366 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-07-12 08:17:46,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3819 states. [2022-07-12 08:17:46,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3819 to 3309. [2022-07-12 08:17:46,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3309 states, 3214 states have (on average 1.7710018668326073) internal successors, (5692), 3219 states have internal predecessors, (5692), 73 states have call successors, (73), 19 states have call predecessors, (73), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2022-07-12 08:17:46,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3309 states to 3309 states and 5841 transitions. [2022-07-12 08:17:46,816 INFO L78 Accepts]: Start accepts. Automaton has 3309 states and 5841 transitions. Word has length 190 [2022-07-12 08:17:46,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:17:46,821 INFO L495 AbstractCegarLoop]: Abstraction has 3309 states and 5841 transitions. [2022-07-12 08:17:46,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:17:46,822 INFO L276 IsEmpty]: Start isEmpty. Operand 3309 states and 5841 transitions. [2022-07-12 08:17:46,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-12 08:17:46,824 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:17:46,825 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:17:46,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 08:17:46,826 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:17:46,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:17:46,826 INFO L85 PathProgramCache]: Analyzing trace with hash -150189512, now seen corresponding path program 1 times [2022-07-12 08:17:46,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:17:46,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255229384] [2022-07-12 08:17:46,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:17:46,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:17:46,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:46,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:17:46,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:46,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:17:46,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:46,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:17:46,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:46,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:17:46,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:46,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:17:46,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:46,978 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 08:17:46,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:17:46,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255229384] [2022-07-12 08:17:46,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255229384] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:17:46,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:17:46,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:17:46,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511590741] [2022-07-12 08:17:46,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:17:46,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:17:46,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:17:46,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:17:46,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:17:46,981 INFO L87 Difference]: Start difference. First operand 3309 states and 5841 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:17:50,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:17:50,361 INFO L93 Difference]: Finished difference Result 6060 states and 10309 transitions. [2022-07-12 08:17:50,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 08:17:50,362 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-07-12 08:17:50,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:17:50,382 INFO L225 Difference]: With dead ends: 6060 [2022-07-12 08:17:50,382 INFO L226 Difference]: Without dead ends: 4893 [2022-07-12 08:17:50,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-12 08:17:50,388 INFO L413 NwaCegarLoop]: 5040 mSDtfsCounter, 5666 mSDsluCounter, 17876 mSDsCounter, 0 mSdLazyCounter, 3355 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5686 SdHoareTripleChecker+Valid, 22916 SdHoareTripleChecker+Invalid, 3443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 3355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-12 08:17:50,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5686 Valid, 22916 Invalid, 3443 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 3355 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-12 08:17:50,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4893 states. [2022-07-12 08:17:50,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4893 to 4065. [2022-07-12 08:17:50,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4065 states, 3912 states have (on average 1.7354294478527608) internal successors, (6789), 3919 states have internal predecessors, (6789), 117 states have call successors, (117), 31 states have call predecessors, (117), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2022-07-12 08:17:50,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4065 states to 4065 states and 7034 transitions. [2022-07-12 08:17:50,531 INFO L78 Accepts]: Start accepts. Automaton has 4065 states and 7034 transitions. Word has length 190 [2022-07-12 08:17:50,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:17:50,531 INFO L495 AbstractCegarLoop]: Abstraction has 4065 states and 7034 transitions. [2022-07-12 08:17:50,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:17:50,537 INFO L276 IsEmpty]: Start isEmpty. Operand 4065 states and 7034 transitions. [2022-07-12 08:17:50,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-12 08:17:50,540 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:17:50,540 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:17:50,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 08:17:50,540 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:17:50,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:17:50,541 INFO L85 PathProgramCache]: Analyzing trace with hash 348367290, now seen corresponding path program 1 times [2022-07-12 08:17:50,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:17:50,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318823672] [2022-07-12 08:17:50,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:17:50,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:17:50,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:50,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:17:50,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:50,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:17:50,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:50,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:17:50,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:50,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:17:50,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:50,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:17:50,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:50,682 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 08:17:50,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:17:50,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318823672] [2022-07-12 08:17:50,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318823672] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:17:50,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:17:50,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:17:50,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671776282] [2022-07-12 08:17:50,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:17:50,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:17:50,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:17:50,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:17:50,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:17:50,685 INFO L87 Difference]: Start difference. First operand 4065 states and 7034 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:17:54,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:17:54,234 INFO L93 Difference]: Finished difference Result 8854 states and 14770 transitions. [2022-07-12 08:17:54,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 08:17:54,236 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-07-12 08:17:54,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:17:54,266 INFO L225 Difference]: With dead ends: 8854 [2022-07-12 08:17:54,266 INFO L226 Difference]: Without dead ends: 6931 [2022-07-12 08:17:54,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-12 08:17:54,278 INFO L413 NwaCegarLoop]: 5035 mSDtfsCounter, 5665 mSDsluCounter, 17876 mSDsCounter, 0 mSdLazyCounter, 3347 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5685 SdHoareTripleChecker+Valid, 22911 SdHoareTripleChecker+Invalid, 3435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 3347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-12 08:17:54,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5685 Valid, 22911 Invalid, 3435 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 3347 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-12 08:17:54,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6931 states. [2022-07-12 08:17:54,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6931 to 5578. [2022-07-12 08:17:54,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5578 states, 5309 states have (on average 1.6920323978150311) internal successors, (8983), 5320 states have internal predecessors, (8983), 205 states have call successors, (205), 55 states have call predecessors, (205), 62 states have return successors, (238), 210 states have call predecessors, (238), 203 states have call successors, (238) [2022-07-12 08:17:54,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5578 states to 5578 states and 9426 transitions. [2022-07-12 08:17:54,498 INFO L78 Accepts]: Start accepts. Automaton has 5578 states and 9426 transitions. Word has length 190 [2022-07-12 08:17:54,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:17:54,499 INFO L495 AbstractCegarLoop]: Abstraction has 5578 states and 9426 transitions. [2022-07-12 08:17:54,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:17:54,500 INFO L276 IsEmpty]: Start isEmpty. Operand 5578 states and 9426 transitions. [2022-07-12 08:17:54,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-12 08:17:54,502 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:17:54,503 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:17:54,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 08:17:54,503 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:17:54,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:17:54,504 INFO L85 PathProgramCache]: Analyzing trace with hash 918639096, now seen corresponding path program 1 times [2022-07-12 08:17:54,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:17:54,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102695014] [2022-07-12 08:17:54,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:17:54,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:17:54,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:54,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:17:54,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:54,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:17:54,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:54,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:17:54,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:54,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:17:54,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:54,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:17:54,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:54,636 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 08:17:54,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:17:54,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102695014] [2022-07-12 08:17:54,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102695014] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:17:54,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:17:54,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:17:54,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115263186] [2022-07-12 08:17:54,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:17:54,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:17:54,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:17:54,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:17:54,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:17:54,638 INFO L87 Difference]: Start difference. First operand 5578 states and 9426 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:17:58,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:17:58,257 INFO L93 Difference]: Finished difference Result 14441 states and 23708 transitions. [2022-07-12 08:17:58,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 08:17:58,257 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-07-12 08:17:58,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:17:58,293 INFO L225 Difference]: With dead ends: 14441 [2022-07-12 08:17:58,293 INFO L226 Difference]: Without dead ends: 11005 [2022-07-12 08:17:58,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-12 08:17:58,307 INFO L413 NwaCegarLoop]: 5030 mSDtfsCounter, 5664 mSDsluCounter, 17876 mSDsCounter, 0 mSdLazyCounter, 3339 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5684 SdHoareTripleChecker+Valid, 22906 SdHoareTripleChecker+Invalid, 3427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 3339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-12 08:17:58,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5684 Valid, 22906 Invalid, 3427 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 3339 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-12 08:17:58,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11005 states. [2022-07-12 08:17:58,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11005 to 8611. [2022-07-12 08:17:58,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8611 states, 8110 states have (on average 1.6499383477188656) internal successors, (13381), 8129 states have internal predecessors, (13381), 381 states have call successors, (381), 103 states have call predecessors, (381), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2022-07-12 08:17:58,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8611 states to 8611 states and 14238 transitions. [2022-07-12 08:17:58,832 INFO L78 Accepts]: Start accepts. Automaton has 8611 states and 14238 transitions. Word has length 190 [2022-07-12 08:17:58,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:17:58,832 INFO L495 AbstractCegarLoop]: Abstraction has 8611 states and 14238 transitions. [2022-07-12 08:17:58,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:17:58,833 INFO L276 IsEmpty]: Start isEmpty. Operand 8611 states and 14238 transitions. [2022-07-12 08:17:58,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-12 08:17:58,838 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:17:58,839 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:17:58,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 08:17:58,839 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:17:58,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:17:58,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1972459014, now seen corresponding path program 1 times [2022-07-12 08:17:58,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:17:58,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024318756] [2022-07-12 08:17:58,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:17:58,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:17:58,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:58,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:17:58,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:58,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:17:58,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:59,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:17:59,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:59,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:17:59,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:59,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:17:59,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:59,077 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 08:17:59,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:17:59,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024318756] [2022-07-12 08:17:59,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024318756] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:17:59,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:17:59,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:17:59,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58911000] [2022-07-12 08:17:59,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:17:59,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:17:59,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:17:59,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:17:59,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:17:59,080 INFO L87 Difference]: Start difference. First operand 8611 states and 14238 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:18:03,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:18:03,218 INFO L93 Difference]: Finished difference Result 25616 states and 41646 transitions. [2022-07-12 08:18:03,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 08:18:03,219 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-07-12 08:18:03,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:18:03,266 INFO L225 Difference]: With dead ends: 25616 [2022-07-12 08:18:03,267 INFO L226 Difference]: Without dead ends: 19147 [2022-07-12 08:18:03,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-12 08:18:03,287 INFO L413 NwaCegarLoop]: 4758 mSDtfsCounter, 5775 mSDsluCounter, 17172 mSDsCounter, 0 mSdLazyCounter, 2964 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5795 SdHoareTripleChecker+Valid, 21930 SdHoareTripleChecker+Invalid, 3094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 2964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-12 08:18:03,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5795 Valid, 21930 Invalid, 3094 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [130 Valid, 2964 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-12 08:18:03,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19147 states. [2022-07-12 08:18:04,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19147 to 14692. [2022-07-12 08:18:04,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14692 states, 13727 states have (on average 1.6171778247249946) internal successors, (22199), 13762 states have internal predecessors, (22199), 733 states have call successors, (733), 199 states have call predecessors, (733), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2022-07-12 08:18:04,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14692 states to 14692 states and 23938 transitions. [2022-07-12 08:18:04,059 INFO L78 Accepts]: Start accepts. Automaton has 14692 states and 23938 transitions. Word has length 190 [2022-07-12 08:18:04,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:18:04,059 INFO L495 AbstractCegarLoop]: Abstraction has 14692 states and 23938 transitions. [2022-07-12 08:18:04,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:18:04,060 INFO L276 IsEmpty]: Start isEmpty. Operand 14692 states and 23938 transitions. [2022-07-12 08:18:04,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-12 08:18:04,067 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:18:04,067 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:18:04,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 08:18:04,068 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:18:04,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:18:04,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1536510392, now seen corresponding path program 1 times [2022-07-12 08:18:04,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:18:04,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621525599] [2022-07-12 08:18:04,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:18:04,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:18:04,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:04,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:18:04,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:04,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:18:04,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:04,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:18:04,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:04,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:18:04,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:04,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:18:04,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:04,240 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 08:18:04,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:18:04,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621525599] [2022-07-12 08:18:04,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621525599] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:18:04,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:18:04,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:18:04,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201467900] [2022-07-12 08:18:04,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:18:04,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:18:04,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:18:04,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:18:04,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:18:04,244 INFO L87 Difference]: Start difference. First operand 14692 states and 23938 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:18:06,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:18:06,814 INFO L93 Difference]: Finished difference Result 31976 states and 52109 transitions. [2022-07-12 08:18:06,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 08:18:06,815 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-07-12 08:18:06,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:18:06,871 INFO L225 Difference]: With dead ends: 31976 [2022-07-12 08:18:06,871 INFO L226 Difference]: Without dead ends: 19426 [2022-07-12 08:18:06,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-07-12 08:18:06,905 INFO L413 NwaCegarLoop]: 4645 mSDtfsCounter, 5350 mSDsluCounter, 12675 mSDsCounter, 0 mSdLazyCounter, 1412 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5371 SdHoareTripleChecker+Valid, 17320 SdHoareTripleChecker+Invalid, 1532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 1412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-12 08:18:06,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5371 Valid, 17320 Invalid, 1532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 1412 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-12 08:18:06,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19426 states. [2022-07-12 08:18:07,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19426 to 14692. [2022-07-12 08:18:07,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14692 states, 13727 states have (on average 1.6147738034530488) internal successors, (22166), 13762 states have internal predecessors, (22166), 733 states have call successors, (733), 199 states have call predecessors, (733), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2022-07-12 08:18:07,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14692 states to 14692 states and 23905 transitions. [2022-07-12 08:18:07,836 INFO L78 Accepts]: Start accepts. Automaton has 14692 states and 23905 transitions. Word has length 190 [2022-07-12 08:18:07,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:18:07,836 INFO L495 AbstractCegarLoop]: Abstraction has 14692 states and 23905 transitions. [2022-07-12 08:18:07,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:18:07,836 INFO L276 IsEmpty]: Start isEmpty. Operand 14692 states and 23905 transitions. [2022-07-12 08:18:07,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-12 08:18:07,844 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:18:07,844 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:18:07,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 08:18:07,844 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:18:07,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:18:07,845 INFO L85 PathProgramCache]: Analyzing trace with hash -2091075014, now seen corresponding path program 1 times [2022-07-12 08:18:07,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:18:07,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202120059] [2022-07-12 08:18:07,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:18:07,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:18:07,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:07,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:18:07,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:07,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:18:07,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:07,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:18:07,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:07,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:18:07,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:07,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:18:07,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:07,969 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 08:18:07,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:18:07,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202120059] [2022-07-12 08:18:07,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202120059] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:18:07,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:18:07,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:18:07,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045895735] [2022-07-12 08:18:07,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:18:07,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:18:07,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:18:07,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:18:07,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:18:07,971 INFO L87 Difference]: Start difference. First operand 14692 states and 23905 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:18:13,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:18:13,736 INFO L93 Difference]: Finished difference Result 47933 states and 77484 transitions. [2022-07-12 08:18:13,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 08:18:13,737 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-07-12 08:18:13,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:18:13,838 INFO L225 Difference]: With dead ends: 47933 [2022-07-12 08:18:13,839 INFO L226 Difference]: Without dead ends: 35383 [2022-07-12 08:18:13,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-12 08:18:13,871 INFO L413 NwaCegarLoop]: 5014 mSDtfsCounter, 5655 mSDsluCounter, 17876 mSDsCounter, 0 mSdLazyCounter, 3304 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5675 SdHoareTripleChecker+Valid, 22890 SdHoareTripleChecker+Invalid, 3392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 3304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-12 08:18:13,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5675 Valid, 22890 Invalid, 3392 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 3304 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-12 08:18:13,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35383 states. [2022-07-12 08:18:15,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35383 to 26918. [2022-07-12 08:18:15,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26918 states, 25025 states have (on average 1.5924075924075924) internal successors, (39850), 25092 states have internal predecessors, (39850), 1437 states have call successors, (1437), 391 states have call predecessors, (1437), 454 states have return successors, (2228), 1498 states have call predecessors, (2228), 1435 states have call successors, (2228) [2022-07-12 08:18:15,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26918 states to 26918 states and 43515 transitions. [2022-07-12 08:18:15,627 INFO L78 Accepts]: Start accepts. Automaton has 26918 states and 43515 transitions. Word has length 190 [2022-07-12 08:18:15,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:18:15,628 INFO L495 AbstractCegarLoop]: Abstraction has 26918 states and 43515 transitions. [2022-07-12 08:18:15,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:18:15,628 INFO L276 IsEmpty]: Start isEmpty. Operand 26918 states and 43515 transitions. [2022-07-12 08:18:15,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-12 08:18:15,640 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:18:15,640 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:18:15,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-12 08:18:15,641 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:18:15,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:18:15,641 INFO L85 PathProgramCache]: Analyzing trace with hash 8663416, now seen corresponding path program 1 times [2022-07-12 08:18:15,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:18:15,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464865661] [2022-07-12 08:18:15,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:18:15,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:18:15,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:15,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:18:15,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:15,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:18:15,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:15,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:18:15,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:15,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:18:15,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:15,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:18:15,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:15,779 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 08:18:15,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:18:15,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464865661] [2022-07-12 08:18:15,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464865661] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:18:15,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:18:15,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:18:15,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499022003] [2022-07-12 08:18:15,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:18:15,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:18:15,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:18:15,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:18:15,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:18:15,782 INFO L87 Difference]: Start difference. First operand 26918 states and 43515 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:18:24,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:18:24,373 INFO L93 Difference]: Finished difference Result 92637 states and 150036 transitions. [2022-07-12 08:18:24,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 08:18:24,374 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-07-12 08:18:24,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:18:24,609 INFO L225 Difference]: With dead ends: 92637 [2022-07-12 08:18:24,609 INFO L226 Difference]: Without dead ends: 67861 [2022-07-12 08:18:24,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-12 08:18:24,681 INFO L413 NwaCegarLoop]: 5007 mSDtfsCounter, 5657 mSDsluCounter, 17876 mSDsCounter, 0 mSdLazyCounter, 3293 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5677 SdHoareTripleChecker+Valid, 22883 SdHoareTripleChecker+Invalid, 3384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 3293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-12 08:18:24,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5677 Valid, 22883 Invalid, 3384 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [91 Valid, 3293 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-12 08:18:24,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67861 states. [2022-07-12 08:18:28,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67861 to 51431. [2022-07-12 08:18:28,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51431 states, 47682 states have (on average 1.57938005956126) internal successors, (75308), 47813 states have internal predecessors, (75308), 2845 states have call successors, (2845), 775 states have call predecessors, (2845), 902 states have return successors, (5158), 2970 states have call predecessors, (5158), 2843 states have call successors, (5158) [2022-07-12 08:18:28,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51431 states to 51431 states and 83311 transitions. [2022-07-12 08:18:28,460 INFO L78 Accepts]: Start accepts. Automaton has 51431 states and 83311 transitions. Word has length 190 [2022-07-12 08:18:28,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:18:28,461 INFO L495 AbstractCegarLoop]: Abstraction has 51431 states and 83311 transitions. [2022-07-12 08:18:28,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:18:28,461 INFO L276 IsEmpty]: Start isEmpty. Operand 51431 states and 83311 transitions. [2022-07-12 08:18:28,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-12 08:18:28,484 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:18:28,484 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:18:28,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 08:18:28,484 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:18:28,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:18:28,485 INFO L85 PathProgramCache]: Analyzing trace with hash 353491578, now seen corresponding path program 1 times [2022-07-12 08:18:28,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:18:28,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393998226] [2022-07-12 08:18:28,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:18:28,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:18:28,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:28,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:18:28,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:28,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:18:28,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:28,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:18:28,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:28,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:18:28,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:28,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:18:28,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:28,613 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 08:18:28,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:18:28,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393998226] [2022-07-12 08:18:28,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393998226] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:18:28,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:18:28,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:18:28,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681034816] [2022-07-12 08:18:28,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:18:28,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:18:28,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:18:28,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:18:28,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:18:28,615 INFO L87 Difference]: Start difference. First operand 51431 states and 83311 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:18:36,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:18:36,443 INFO L93 Difference]: Finished difference Result 118118 states and 193774 transitions. [2022-07-12 08:18:36,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 08:18:36,443 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-07-12 08:18:36,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:18:36,680 INFO L225 Difference]: With dead ends: 118118 [2022-07-12 08:18:36,680 INFO L226 Difference]: Without dead ends: 68829 [2022-07-12 08:18:36,802 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 08:18:36,803 INFO L413 NwaCegarLoop]: 4631 mSDtfsCounter, 5172 mSDsluCounter, 16844 mSDsCounter, 0 mSdLazyCounter, 1553 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5193 SdHoareTripleChecker+Valid, 21475 SdHoareTripleChecker+Invalid, 1647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-12 08:18:36,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5193 Valid, 21475 Invalid, 1647 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [94 Valid, 1553 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-12 08:18:36,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68829 states. [2022-07-12 08:18:40,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68829 to 51431. [2022-07-12 08:18:40,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51431 states, 47682 states have (on average 1.5766746361310349) internal successors, (75179), 47813 states have internal predecessors, (75179), 2845 states have call successors, (2845), 775 states have call predecessors, (2845), 902 states have return successors, (5158), 2970 states have call predecessors, (5158), 2843 states have call successors, (5158) [2022-07-12 08:18:41,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51431 states to 51431 states and 83182 transitions. [2022-07-12 08:18:41,136 INFO L78 Accepts]: Start accepts. Automaton has 51431 states and 83182 transitions. Word has length 190 [2022-07-12 08:18:41,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:18:41,137 INFO L495 AbstractCegarLoop]: Abstraction has 51431 states and 83182 transitions. [2022-07-12 08:18:41,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:18:41,137 INFO L276 IsEmpty]: Start isEmpty. Operand 51431 states and 83182 transitions. [2022-07-12 08:18:41,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-12 08:18:41,158 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:18:41,158 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:18:41,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-12 08:18:41,158 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:18:41,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:18:41,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1415980036, now seen corresponding path program 1 times [2022-07-12 08:18:41,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:18:41,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228216745] [2022-07-12 08:18:41,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:18:41,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:18:41,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:41,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:18:41,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:41,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:18:41,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:41,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:18:41,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:41,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:18:41,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:41,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:18:41,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:41,282 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 08:18:41,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:18:41,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228216745] [2022-07-12 08:18:41,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228216745] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:18:41,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:18:41,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:18:41,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368598738] [2022-07-12 08:18:41,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:18:41,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:18:41,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:18:41,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:18:41,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:18:41,284 INFO L87 Difference]: Start difference. First operand 51431 states and 83182 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:18:55,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:18:55,864 INFO L93 Difference]: Finished difference Result 181784 states and 295822 transitions. [2022-07-12 08:18:55,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 08:18:55,864 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-07-12 08:18:55,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:18:56,316 INFO L225 Difference]: With dead ends: 181784 [2022-07-12 08:18:56,316 INFO L226 Difference]: Without dead ends: 132495 [2022-07-12 08:18:56,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-12 08:18:56,471 INFO L413 NwaCegarLoop]: 4992 mSDtfsCounter, 5645 mSDsluCounter, 17876 mSDsCounter, 0 mSdLazyCounter, 3256 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5665 SdHoareTripleChecker+Valid, 22868 SdHoareTripleChecker+Invalid, 3347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 3256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-12 08:18:56,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5665 Valid, 22868 Invalid, 3347 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [91 Valid, 3256 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-12 08:18:56,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132495 states. [2022-07-12 08:19:04,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132495 to 100842. [2022-07-12 08:19:04,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100842 states, 93381 states have (on average 1.5693235240573564) internal successors, (146545), 93640 states have internal predecessors, (146545), 5661 states have call successors, (5661), 1543 states have call predecessors, (5661), 1798 states have return successors, (12476), 5914 states have call predecessors, (12476), 5659 states have call successors, (12476) [2022-07-12 08:19:05,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100842 states to 100842 states and 164682 transitions. [2022-07-12 08:19:05,330 INFO L78 Accepts]: Start accepts. Automaton has 100842 states and 164682 transitions. Word has length 190 [2022-07-12 08:19:05,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:19:05,330 INFO L495 AbstractCegarLoop]: Abstraction has 100842 states and 164682 transitions. [2022-07-12 08:19:05,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:19:05,331 INFO L276 IsEmpty]: Start isEmpty. Operand 100842 states and 164682 transitions. [2022-07-12 08:19:05,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-12 08:19:05,371 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:19:05,371 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:19:05,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-12 08:19:05,372 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:19:05,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:19:05,372 INFO L85 PathProgramCache]: Analyzing trace with hash -2027249094, now seen corresponding path program 1 times [2022-07-12 08:19:05,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:19:05,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179398100] [2022-07-12 08:19:05,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:19:05,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:19:05,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:19:05,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:19:05,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:19:05,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:19:05,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:19:05,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:19:05,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:19:05,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:19:05,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:19:05,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:19:05,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:19:05,492 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 08:19:05,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:19:05,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179398100] [2022-07-12 08:19:05,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179398100] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:19:05,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:19:05,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:19:05,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881910505] [2022-07-12 08:19:05,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:19:05,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:19:05,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:19:05,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:19:05,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:19:05,495 INFO L87 Difference]: Start difference. First operand 100842 states and 164682 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:19:34,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:19:34,435 INFO L93 Difference]: Finished difference Result 360601 states and 594600 transitions. [2022-07-12 08:19:34,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 08:19:34,436 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-07-12 08:19:34,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:19:35,649 INFO L225 Difference]: With dead ends: 360601 [2022-07-12 08:19:35,649 INFO L226 Difference]: Without dead ends: 261901 [2022-07-12 08:19:36,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-12 08:19:36,061 INFO L413 NwaCegarLoop]: 4987 mSDtfsCounter, 5644 mSDsluCounter, 17876 mSDsCounter, 0 mSdLazyCounter, 3248 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5664 SdHoareTripleChecker+Valid, 22863 SdHoareTripleChecker+Invalid, 3339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 3248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-12 08:19:36,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5664 Valid, 22863 Invalid, 3339 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [91 Valid, 3248 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-12 08:19:36,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261901 states.