./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem03_label22.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem03_label22.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 f365a0f129fa90e96f59a2a67efc46f6bd75f705664f3dab23b0f5e5824e9e07 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-20 22:46:48,212 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 22:46:48,213 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 22:46:48,250 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 22:46:48,253 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 22:46:48,254 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 22:46:48,260 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 22:46:48,263 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 22:46:48,265 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 22:46:48,269 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 22:46:48,270 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 22:46:48,274 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 22:46:48,275 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 22:46:48,277 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 22:46:48,279 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 22:46:48,280 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 22:46:48,281 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 22:46:48,282 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 22:46:48,286 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 22:46:48,289 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 22:46:48,290 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 22:46:48,291 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 22:46:48,292 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 22:46:48,293 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 22:46:48,303 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 22:46:48,307 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 22:46:48,310 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 22:46:48,310 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 22:46:48,311 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 22:46:48,311 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 22:46:48,312 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 22:46:48,312 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 22:46:48,313 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 22:46:48,314 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 22:46:48,315 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 22:46:48,316 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 22:46:48,317 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 22:46:48,317 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 22:46:48,317 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 22:46:48,318 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 22:46:48,318 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 22:46:48,319 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 22:46:48,324 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-20 22:46:48,357 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 22:46:48,357 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 22:46:48,358 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 22:46:48,358 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 22:46:48,359 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 22:46:48,359 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 22:46:48,359 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 22:46:48,360 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 22:46:48,360 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 22:46:48,361 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 22:46:48,361 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-20 22:46:48,361 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 22:46:48,361 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-20 22:46:48,361 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 22:46:48,361 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 22:46:48,362 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 22:46:48,362 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 22:46:48,362 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-20 22:46:48,362 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 22:46:48,362 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 22:46:48,363 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 22:46:48,363 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 22:46:48,363 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 22:46:48,363 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 22:46:48,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 22:46:48,364 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 22:46:48,364 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 22:46:48,364 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 22:46:48,364 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 22:46:48,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 22:46:48,365 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 22:46:48,365 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 22:46:48,365 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 22:46:48,365 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f365a0f129fa90e96f59a2a67efc46f6bd75f705664f3dab23b0f5e5824e9e07 [2022-07-20 22:46:48,681 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 22:46:48,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 22:46:48,715 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 22:46:48,716 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 22:46:48,716 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 22:46:48,719 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem03_label22.c [2022-07-20 22:46:48,768 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6e930968/524f9689243d4b32b2fa6ab63e9f3691/FLAGc1292a756 [2022-07-20 22:46:49,342 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 22:46:49,342 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem03_label22.c [2022-07-20 22:46:49,357 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6e930968/524f9689243d4b32b2fa6ab63e9f3691/FLAGc1292a756 [2022-07-20 22:46:49,759 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6e930968/524f9689243d4b32b2fa6ab63e9f3691 [2022-07-20 22:46:49,761 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 22:46:49,762 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 22:46:49,765 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 22:46:49,765 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 22:46:49,768 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 22:46:49,769 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:46:49" (1/1) ... [2022-07-20 22:46:49,770 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47a87803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:46:49, skipping insertion in model container [2022-07-20 22:46:49,770 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:46:49" (1/1) ... [2022-07-20 22:46:49,776 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 22:46:49,848 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 22:46:50,281 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/eca-rers2012/Problem03_label22.c[56764,56777] [2022-07-20 22:46:50,313 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 22:46:50,321 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 22:46:50,521 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/eca-rers2012/Problem03_label22.c[56764,56777] [2022-07-20 22:46:50,536 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 22:46:50,551 INFO L208 MainTranslator]: Completed translation [2022-07-20 22:46:50,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:46:50 WrapperNode [2022-07-20 22:46:50,553 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 22:46:50,554 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 22:46:50,554 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 22:46:50,554 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 22:46:50,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:46:50" (1/1) ... [2022-07-20 22:46:50,600 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:46:50" (1/1) ... [2022-07-20 22:46:50,696 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1771 [2022-07-20 22:46:50,696 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 22:46:50,697 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 22:46:50,698 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 22:46:50,698 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 22:46:50,705 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:46:50" (1/1) ... [2022-07-20 22:46:50,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:46:50" (1/1) ... [2022-07-20 22:46:50,714 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:46:50" (1/1) ... [2022-07-20 22:46:50,715 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:46:50" (1/1) ... [2022-07-20 22:46:50,781 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:46:50" (1/1) ... [2022-07-20 22:46:50,799 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:46:50" (1/1) ... [2022-07-20 22:46:50,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:46:50" (1/1) ... [2022-07-20 22:46:50,833 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 22:46:50,835 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 22:46:50,836 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 22:46:50,836 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 22:46:50,837 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:46:50" (1/1) ... [2022-07-20 22:46:50,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 22:46:50,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 22:46:50,869 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) [2022-07-20 22:46:50,893 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 [2022-07-20 22:46:50,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 22:46:50,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-20 22:46:50,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 22:46:50,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 22:46:51,030 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 22:46:51,032 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 22:46:52,417 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 22:46:52,431 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 22:46:52,432 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-20 22:46:52,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:46:52 BoogieIcfgContainer [2022-07-20 22:46:52,434 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 22:46:52,437 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 22:46:52,437 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 22:46:52,440 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 22:46:52,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 10:46:49" (1/3) ... [2022-07-20 22:46:52,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bad29e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:46:52, skipping insertion in model container [2022-07-20 22:46:52,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:46:50" (2/3) ... [2022-07-20 22:46:52,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bad29e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:46:52, skipping insertion in model container [2022-07-20 22:46:52,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:46:52" (3/3) ... [2022-07-20 22:46:52,442 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem03_label22.c [2022-07-20 22:46:52,454 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 22:46:52,454 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-20 22:46:52,518 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 22:46:52,525 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@33650c0f, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@75b7741a [2022-07-20 22:46:52,525 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-20 22:46:52,539 INFO L276 IsEmpty]: Start isEmpty. Operand has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:46:52,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-07-20 22:46:52,552 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:46:52,553 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] [2022-07-20 22:46:52,553 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:46:52,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:46:52,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1133598669, now seen corresponding path program 1 times [2022-07-20 22:46:52,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:46:52,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809317373] [2022-07-20 22:46:52,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:46:52,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:46:52,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:46:53,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 22:46:53,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:46:53,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809317373] [2022-07-20 22:46:53,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809317373] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:46:53,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:46:53,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 22:46:53,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328848284] [2022-07-20 22:46:53,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:46:53,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:46:53,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:46:53,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:46:53,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:46:53,129 INFO L87 Difference]: Start difference. First operand has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:46:54,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:46:54,158 INFO L93 Difference]: Finished difference Result 833 states and 1474 transitions. [2022-07-20 22:46:54,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:46:54,161 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 167 [2022-07-20 22:46:54,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:46:54,187 INFO L225 Difference]: With dead ends: 833 [2022-07-20 22:46:54,188 INFO L226 Difference]: Without dead ends: 454 [2022-07-20 22:46:54,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:46:54,193 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 124 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-20 22:46:54,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 163 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-20 22:46:54,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2022-07-20 22:46:54,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 450. [2022-07-20 22:46:54,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 449 states have (on average 1.55902004454343) internal successors, (700), 449 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:46:54,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 700 transitions. [2022-07-20 22:46:54,279 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 700 transitions. Word has length 167 [2022-07-20 22:46:54,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:46:54,280 INFO L495 AbstractCegarLoop]: Abstraction has 450 states and 700 transitions. [2022-07-20 22:46:54,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:46:54,280 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 700 transitions. [2022-07-20 22:46:54,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-07-20 22:46:54,284 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:46:54,284 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:46:54,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-20 22:46:54,285 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:46:54,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:46:54,286 INFO L85 PathProgramCache]: Analyzing trace with hash 325593383, now seen corresponding path program 1 times [2022-07-20 22:46:54,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:46:54,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58235571] [2022-07-20 22:46:54,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:46:54,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:46:54,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:46:54,414 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 22:46:54,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:46:54,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58235571] [2022-07-20 22:46:54,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58235571] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:46:54,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:46:54,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 22:46:54,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152211509] [2022-07-20 22:46:54,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:46:54,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:46:54,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:46:54,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:46:54,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:46:54,419 INFO L87 Difference]: Start difference. First operand 450 states and 700 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 2 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:46:55,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:46:55,079 INFO L93 Difference]: Finished difference Result 1337 states and 2085 transitions. [2022-07-20 22:46:55,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:46:55,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 2 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 173 [2022-07-20 22:46:55,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:46:55,086 INFO L225 Difference]: With dead ends: 1337 [2022-07-20 22:46:55,086 INFO L226 Difference]: Without dead ends: 889 [2022-07-20 22:46:55,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:46:55,094 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 285 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-20 22:46:55,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 104 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-20 22:46:55,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2022-07-20 22:46:55,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 885. [2022-07-20 22:46:55,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 885 states, 884 states have (on average 1.5429864253393666) internal successors, (1364), 884 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:46:55,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1364 transitions. [2022-07-20 22:46:55,143 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1364 transitions. Word has length 173 [2022-07-20 22:46:55,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:46:55,143 INFO L495 AbstractCegarLoop]: Abstraction has 885 states and 1364 transitions. [2022-07-20 22:46:55,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 2 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:46:55,144 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1364 transitions. [2022-07-20 22:46:55,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-07-20 22:46:55,148 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:46:55,149 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:46:55,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-20 22:46:55,149 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:46:55,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:46:55,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1446106020, now seen corresponding path program 1 times [2022-07-20 22:46:55,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:46:55,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093645034] [2022-07-20 22:46:55,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:46:55,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:46:55,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:46:55,240 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 22:46:55,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:46:55,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093645034] [2022-07-20 22:46:55,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093645034] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:46:55,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:46:55,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 22:46:55,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301719404] [2022-07-20 22:46:55,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:46:55,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:46:55,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:46:55,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:46:55,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:46:55,248 INFO L87 Difference]: Start difference. First operand 885 states and 1364 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:46:55,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:46:55,918 INFO L93 Difference]: Finished difference Result 2599 states and 4012 transitions. [2022-07-20 22:46:55,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:46:55,919 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 180 [2022-07-20 22:46:55,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:46:55,926 INFO L225 Difference]: With dead ends: 2599 [2022-07-20 22:46:55,926 INFO L226 Difference]: Without dead ends: 1716 [2022-07-20 22:46:55,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:46:55,932 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 258 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-20 22:46:55,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 134 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 603 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-20 22:46:55,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1716 states. [2022-07-20 22:46:55,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1716 to 1714. [2022-07-20 22:46:55,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1714 states, 1713 states have (on average 1.4687682428488034) internal successors, (2516), 1713 states have internal predecessors, (2516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:46:55,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1714 states to 1714 states and 2516 transitions. [2022-07-20 22:46:55,972 INFO L78 Accepts]: Start accepts. Automaton has 1714 states and 2516 transitions. Word has length 180 [2022-07-20 22:46:55,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:46:55,972 INFO L495 AbstractCegarLoop]: Abstraction has 1714 states and 2516 transitions. [2022-07-20 22:46:55,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:46:55,973 INFO L276 IsEmpty]: Start isEmpty. Operand 1714 states and 2516 transitions. [2022-07-20 22:46:55,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-07-20 22:46:55,978 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:46:55,979 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:46:55,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-20 22:46:55,979 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:46:55,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:46:55,981 INFO L85 PathProgramCache]: Analyzing trace with hash 212767863, now seen corresponding path program 1 times [2022-07-20 22:46:55,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:46:55,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800435583] [2022-07-20 22:46:55,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:46:55,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:46:56,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:46:56,067 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 22:46:56,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:46:56,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800435583] [2022-07-20 22:46:56,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800435583] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:46:56,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:46:56,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 22:46:56,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249907261] [2022-07-20 22:46:56,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:46:56,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:46:56,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:46:56,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:46:56,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:46:56,071 INFO L87 Difference]: Start difference. First operand 1714 states and 2516 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 2 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:46:56,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:46:56,722 INFO L93 Difference]: Finished difference Result 4665 states and 6865 transitions. [2022-07-20 22:46:56,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:46:56,723 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 2 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 180 [2022-07-20 22:46:56,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:46:56,734 INFO L225 Difference]: With dead ends: 4665 [2022-07-20 22:46:56,734 INFO L226 Difference]: Without dead ends: 2953 [2022-07-20 22:46:56,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:46:56,744 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 241 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-20 22:46:56,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 167 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-20 22:46:56,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2953 states. [2022-07-20 22:46:56,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2953 to 2949. [2022-07-20 22:46:56,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2949 states, 2948 states have (on average 1.4189280868385346) internal successors, (4183), 2948 states have internal predecessors, (4183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:46:56,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2949 states to 2949 states and 4183 transitions. [2022-07-20 22:46:56,829 INFO L78 Accepts]: Start accepts. Automaton has 2949 states and 4183 transitions. Word has length 180 [2022-07-20 22:46:56,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:46:56,830 INFO L495 AbstractCegarLoop]: Abstraction has 2949 states and 4183 transitions. [2022-07-20 22:46:56,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 2 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:46:56,831 INFO L276 IsEmpty]: Start isEmpty. Operand 2949 states and 4183 transitions. [2022-07-20 22:46:56,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-07-20 22:46:56,837 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:46:56,837 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:46:56,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-20 22:46:56,837 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:46:56,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:46:56,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1433692648, now seen corresponding path program 1 times [2022-07-20 22:46:56,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:46:56,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160277613] [2022-07-20 22:46:56,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:46:56,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:46:56,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:46:56,894 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-20 22:46:56,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:46:56,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160277613] [2022-07-20 22:46:56,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160277613] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:46:56,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:46:56,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 22:46:56,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074652677] [2022-07-20 22:46:56,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:46:56,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:46:56,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:46:56,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:46:56,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:46:56,897 INFO L87 Difference]: Start difference. First operand 2949 states and 4183 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:46:57,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:46:57,677 INFO L93 Difference]: Finished difference Result 8575 states and 12210 transitions. [2022-07-20 22:46:57,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:46:57,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2022-07-20 22:46:57,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:46:57,698 INFO L225 Difference]: With dead ends: 8575 [2022-07-20 22:46:57,698 INFO L226 Difference]: Without dead ends: 5831 [2022-07-20 22:46:57,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:46:57,703 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 247 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-20 22:46:57,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 92 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-20 22:46:57,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5831 states. [2022-07-20 22:46:57,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5831 to 5795. [2022-07-20 22:46:57,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5795 states, 5794 states have (on average 1.387124611667242) internal successors, (8037), 5794 states have internal predecessors, (8037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:46:57,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5795 states to 5795 states and 8037 transitions. [2022-07-20 22:46:57,826 INFO L78 Accepts]: Start accepts. Automaton has 5795 states and 8037 transitions. Word has length 181 [2022-07-20 22:46:57,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:46:57,827 INFO L495 AbstractCegarLoop]: Abstraction has 5795 states and 8037 transitions. [2022-07-20 22:46:57,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:46:57,830 INFO L276 IsEmpty]: Start isEmpty. Operand 5795 states and 8037 transitions. [2022-07-20 22:46:57,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-07-20 22:46:57,841 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:46:57,841 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:46:57,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-20 22:46:57,843 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:46:57,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:46:57,843 INFO L85 PathProgramCache]: Analyzing trace with hash -509944834, now seen corresponding path program 1 times [2022-07-20 22:46:57,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:46:57,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858534408] [2022-07-20 22:46:57,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:46:57,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:46:57,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:46:57,942 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-20 22:46:57,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:46:57,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858534408] [2022-07-20 22:46:57,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858534408] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:46:57,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:46:57,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 22:46:57,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985371451] [2022-07-20 22:46:57,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:46:57,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:46:57,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:46:57,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:46:57,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:46:57,945 INFO L87 Difference]: Start difference. First operand 5795 states and 8037 transitions. Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:46:58,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:46:58,758 INFO L93 Difference]: Finished difference Result 17290 states and 23986 transitions. [2022-07-20 22:46:58,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:46:58,759 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 195 [2022-07-20 22:46:58,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:46:58,798 INFO L225 Difference]: With dead ends: 17290 [2022-07-20 22:46:58,798 INFO L226 Difference]: Without dead ends: 11497 [2022-07-20 22:46:58,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:46:58,809 INFO L413 NwaCegarLoop]: 392 mSDtfsCounter, 216 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-20 22:46:58,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 415 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-20 22:46:58,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11497 states. [2022-07-20 22:46:58,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11497 to 11490. [2022-07-20 22:46:59,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11490 states, 11489 states have (on average 1.2984593959439463) internal successors, (14918), 11489 states have internal predecessors, (14918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:46:59,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11490 states to 11490 states and 14918 transitions. [2022-07-20 22:46:59,030 INFO L78 Accepts]: Start accepts. Automaton has 11490 states and 14918 transitions. Word has length 195 [2022-07-20 22:46:59,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:46:59,031 INFO L495 AbstractCegarLoop]: Abstraction has 11490 states and 14918 transitions. [2022-07-20 22:46:59,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:46:59,031 INFO L276 IsEmpty]: Start isEmpty. Operand 11490 states and 14918 transitions. [2022-07-20 22:46:59,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-07-20 22:46:59,048 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:46:59,049 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:46:59,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-20 22:46:59,049 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:46:59,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:46:59,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1313048590, now seen corresponding path program 1 times [2022-07-20 22:46:59,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:46:59,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256806780] [2022-07-20 22:46:59,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:46:59,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:46:59,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:46:59,153 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-07-20 22:46:59,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:46:59,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256806780] [2022-07-20 22:46:59,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256806780] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:46:59,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:46:59,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 22:46:59,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522509176] [2022-07-20 22:46:59,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:46:59,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:46:59,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:46:59,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:46:59,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:46:59,156 INFO L87 Difference]: Start difference. First operand 11490 states and 14918 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 2 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:46:59,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:46:59,953 INFO L93 Difference]: Finished difference Result 30541 states and 39608 transitions. [2022-07-20 22:46:59,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:46:59,953 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 2 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 202 [2022-07-20 22:46:59,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:47:00,004 INFO L225 Difference]: With dead ends: 30541 [2022-07-20 22:47:00,005 INFO L226 Difference]: Without dead ends: 19865 [2022-07-20 22:47:00,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:47:00,026 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 217 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-20 22:47:00,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 161 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-20 22:47:00,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19865 states. [2022-07-20 22:47:00,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19865 to 19849. [2022-07-20 22:47:00,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19849 states, 19848 states have (on average 1.2673821039903266) internal successors, (25155), 19848 states have internal predecessors, (25155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:00,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19849 states to 19849 states and 25155 transitions. [2022-07-20 22:47:00,475 INFO L78 Accepts]: Start accepts. Automaton has 19849 states and 25155 transitions. Word has length 202 [2022-07-20 22:47:00,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:47:00,476 INFO L495 AbstractCegarLoop]: Abstraction has 19849 states and 25155 transitions. [2022-07-20 22:47:00,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 2 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:00,477 INFO L276 IsEmpty]: Start isEmpty. Operand 19849 states and 25155 transitions. [2022-07-20 22:47:00,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-07-20 22:47:00,510 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:47:00,510 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:47:00,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-20 22:47:00,511 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:47:00,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:47:00,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1206143638, now seen corresponding path program 1 times [2022-07-20 22:47:00,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:47:00,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657901104] [2022-07-20 22:47:00,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:47:00,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:47:00,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:47:00,606 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-20 22:47:00,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:47:00,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657901104] [2022-07-20 22:47:00,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657901104] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:47:00,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:47:00,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 22:47:00,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335832745] [2022-07-20 22:47:00,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:47:00,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:47:00,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:47:00,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:47:00,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:47:00,610 INFO L87 Difference]: Start difference. First operand 19849 states and 25155 transitions. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:01,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:47:01,488 INFO L93 Difference]: Finished difference Result 45211 states and 57500 transitions. [2022-07-20 22:47:01,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:47:01,488 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 221 [2022-07-20 22:47:01,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:47:01,543 INFO L225 Difference]: With dead ends: 45211 [2022-07-20 22:47:01,544 INFO L226 Difference]: Without dead ends: 25364 [2022-07-20 22:47:01,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:47:01,569 INFO L413 NwaCegarLoop]: 387 mSDtfsCounter, 210 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-20 22:47:01,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 408 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-20 22:47:01,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25364 states. [2022-07-20 22:47:01,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25364 to 24516. [2022-07-20 22:47:01,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24516 states, 24515 states have (on average 1.2366306343055273) internal successors, (30316), 24515 states have internal predecessors, (30316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:01,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24516 states to 24516 states and 30316 transitions. [2022-07-20 22:47:01,968 INFO L78 Accepts]: Start accepts. Automaton has 24516 states and 30316 transitions. Word has length 221 [2022-07-20 22:47:01,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:47:01,969 INFO L495 AbstractCegarLoop]: Abstraction has 24516 states and 30316 transitions. [2022-07-20 22:47:01,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:01,970 INFO L276 IsEmpty]: Start isEmpty. Operand 24516 states and 30316 transitions. [2022-07-20 22:47:02,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-07-20 22:47:02,008 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:47:02,008 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:47:02,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-20 22:47:02,010 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:47:02,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:47:02,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1545620703, now seen corresponding path program 1 times [2022-07-20 22:47:02,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:47:02,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970088711] [2022-07-20 22:47:02,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:47:02,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:47:02,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:47:02,197 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-07-20 22:47:02,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:47:02,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970088711] [2022-07-20 22:47:02,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970088711] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:47:02,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:47:02,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 22:47:02,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736856149] [2022-07-20 22:47:02,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:47:02,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:47:02,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:47:02,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:47:02,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:47:02,200 INFO L87 Difference]: Start difference. First operand 24516 states and 30316 transitions. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 2 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:03,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:47:03,147 INFO L93 Difference]: Finished difference Result 53726 states and 66206 transitions. [2022-07-20 22:47:03,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:47:03,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 2 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-07-20 22:47:03,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:47:03,207 INFO L225 Difference]: With dead ends: 53726 [2022-07-20 22:47:03,207 INFO L226 Difference]: Without dead ends: 30227 [2022-07-20 22:47:03,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:47:03,235 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 204 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-20 22:47:03,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 184 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-20 22:47:03,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30227 states. [2022-07-20 22:47:03,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30227 to 30200. [2022-07-20 22:47:03,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30200 states, 30199 states have (on average 1.2158018477433028) internal successors, (36716), 30199 states have internal predecessors, (36716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:03,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30200 states to 30200 states and 36716 transitions. [2022-07-20 22:47:03,753 INFO L78 Accepts]: Start accepts. Automaton has 30200 states and 36716 transitions. Word has length 227 [2022-07-20 22:47:03,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:47:03,754 INFO L495 AbstractCegarLoop]: Abstraction has 30200 states and 36716 transitions. [2022-07-20 22:47:03,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 2 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:03,754 INFO L276 IsEmpty]: Start isEmpty. Operand 30200 states and 36716 transitions. [2022-07-20 22:47:03,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-07-20 22:47:03,785 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:47:03,785 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:47:03,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-20 22:47:03,786 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:47:03,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:47:03,787 INFO L85 PathProgramCache]: Analyzing trace with hash -176441772, now seen corresponding path program 2 times [2022-07-20 22:47:03,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:47:03,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119648834] [2022-07-20 22:47:03,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:47:03,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:47:03,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:47:03,883 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 74 proven. 6 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-07-20 22:47:03,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:47:03,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119648834] [2022-07-20 22:47:03,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119648834] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 22:47:03,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2107672460] [2022-07-20 22:47:03,884 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-20 22:47:03,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 22:47:03,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 22:47:03,895 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 22:47:03,897 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-20 22:47:04,164 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-20 22:47:04,164 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 22:47:04,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 22:47:04,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 22:47:04,208 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-20 22:47:04,208 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 22:47:04,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2107672460] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:47:04,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 22:47:04,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2022-07-20 22:47:04,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735925563] [2022-07-20 22:47:04,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:47:04,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:47:04,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:47:04,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:47:04,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 22:47:04,211 INFO L87 Difference]: Start difference. First operand 30200 states and 36716 transitions. Second operand has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:05,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:47:05,170 INFO L93 Difference]: Finished difference Result 71975 states and 87976 transitions. [2022-07-20 22:47:05,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:47:05,171 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 234 [2022-07-20 22:47:05,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:47:05,231 INFO L225 Difference]: With dead ends: 71975 [2022-07-20 22:47:05,232 INFO L226 Difference]: Without dead ends: 44416 [2022-07-20 22:47:05,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 22:47:05,262 INFO L413 NwaCegarLoop]: 388 mSDtfsCounter, 234 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-20 22:47:05,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 409 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-20 22:47:05,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44416 states. [2022-07-20 22:47:05,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44416 to 44207. [2022-07-20 22:47:05,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44207 states, 44206 states have (on average 1.2091345066280594) internal successors, (53451), 44206 states have internal predecessors, (53451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:06,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44207 states to 44207 states and 53451 transitions. [2022-07-20 22:47:06,073 INFO L78 Accepts]: Start accepts. Automaton has 44207 states and 53451 transitions. Word has length 234 [2022-07-20 22:47:06,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:47:06,073 INFO L495 AbstractCegarLoop]: Abstraction has 44207 states and 53451 transitions. [2022-07-20 22:47:06,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:06,074 INFO L276 IsEmpty]: Start isEmpty. Operand 44207 states and 53451 transitions. [2022-07-20 22:47:06,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-07-20 22:47:06,114 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:47:06,114 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:47:06,139 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-20 22:47:06,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-20 22:47:06,335 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:47:06,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:47:06,336 INFO L85 PathProgramCache]: Analyzing trace with hash -474004114, now seen corresponding path program 1 times [2022-07-20 22:47:06,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:47:06,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893673831] [2022-07-20 22:47:06,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:47:06,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:47:06,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:47:06,437 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 75 proven. 6 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-07-20 22:47:06,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:47:06,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893673831] [2022-07-20 22:47:06,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893673831] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 22:47:06,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1864337074] [2022-07-20 22:47:06,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:47:06,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 22:47:06,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 22:47:06,440 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 22:47:06,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-20 22:47:06,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:47:06,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 22:47:06,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 22:47:06,657 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-07-20 22:47:06,658 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 22:47:06,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1864337074] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:47:06,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 22:47:06,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2022-07-20 22:47:06,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219820192] [2022-07-20 22:47:06,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:47:06,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:47:06,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:47:06,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:47:06,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 22:47:06,660 INFO L87 Difference]: Start difference. First operand 44207 states and 53451 transitions. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 2 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:07,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:47:07,517 INFO L93 Difference]: Finished difference Result 82930 states and 100566 transitions. [2022-07-20 22:47:07,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:47:07,518 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 2 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 240 [2022-07-20 22:47:07,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:47:07,564 INFO L225 Difference]: With dead ends: 82930 [2022-07-20 22:47:07,565 INFO L226 Difference]: Without dead ends: 39131 [2022-07-20 22:47:07,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 22:47:07,602 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 226 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-20 22:47:07,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 166 Invalid, 693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-20 22:47:07,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39131 states. [2022-07-20 22:47:08,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39131 to 36284. [2022-07-20 22:47:08,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36284 states, 36283 states have (on average 1.1551415263346472) internal successors, (41912), 36283 states have internal predecessors, (41912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:08,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36284 states to 36284 states and 41912 transitions. [2022-07-20 22:47:08,177 INFO L78 Accepts]: Start accepts. Automaton has 36284 states and 41912 transitions. Word has length 240 [2022-07-20 22:47:08,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:47:08,178 INFO L495 AbstractCegarLoop]: Abstraction has 36284 states and 41912 transitions. [2022-07-20 22:47:08,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 2 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:08,178 INFO L276 IsEmpty]: Start isEmpty. Operand 36284 states and 41912 transitions. [2022-07-20 22:47:08,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-07-20 22:47:08,390 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:47:08,390 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:47:08,419 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-20 22:47:08,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-20 22:47:08,616 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:47:08,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:47:08,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1197379301, now seen corresponding path program 1 times [2022-07-20 22:47:08,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:47:08,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381321999] [2022-07-20 22:47:08,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:47:08,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:47:08,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:47:08,702 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-20 22:47:08,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:47:08,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381321999] [2022-07-20 22:47:08,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381321999] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:47:08,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:47:08,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 22:47:08,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43822467] [2022-07-20 22:47:08,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:47:08,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 22:47:08,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:47:08,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 22:47:08,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-20 22:47:08,705 INFO L87 Difference]: Start difference. First operand 36284 states and 41912 transitions. Second operand has 4 states, 4 states have (on average 53.0) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:09,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:47:09,840 INFO L93 Difference]: Finished difference Result 71396 states and 82559 transitions. [2022-07-20 22:47:09,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 22:47:09,840 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 241 [2022-07-20 22:47:09,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:47:09,882 INFO L225 Difference]: With dead ends: 71396 [2022-07-20 22:47:09,882 INFO L226 Difference]: Without dead ends: 36332 [2022-07-20 22:47:09,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-20 22:47:09,898 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 405 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1149 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 1343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 1149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-20 22:47:09,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 194 Invalid, 1343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 1149 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-20 22:47:09,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36332 states. [2022-07-20 22:47:10,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36332 to 35472. [2022-07-20 22:47:10,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35472 states, 35471 states have (on average 1.15632488511742) internal successors, (41016), 35471 states have internal predecessors, (41016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:10,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35472 states to 35472 states and 41016 transitions. [2022-07-20 22:47:10,353 INFO L78 Accepts]: Start accepts. Automaton has 35472 states and 41016 transitions. Word has length 241 [2022-07-20 22:47:10,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:47:10,353 INFO L495 AbstractCegarLoop]: Abstraction has 35472 states and 41016 transitions. [2022-07-20 22:47:10,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:10,354 INFO L276 IsEmpty]: Start isEmpty. Operand 35472 states and 41016 transitions. [2022-07-20 22:47:10,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-07-20 22:47:10,377 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:47:10,377 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:47:10,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-20 22:47:10,378 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:47:10,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:47:10,379 INFO L85 PathProgramCache]: Analyzing trace with hash -404609305, now seen corresponding path program 1 times [2022-07-20 22:47:10,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:47:10,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100510295] [2022-07-20 22:47:10,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:47:10,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:47:10,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:47:10,495 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 22:47:10,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:47:10,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100510295] [2022-07-20 22:47:10,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100510295] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:47:10,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:47:10,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 22:47:10,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79668371] [2022-07-20 22:47:10,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:47:10,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:47:10,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:47:10,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:47:10,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:47:10,497 INFO L87 Difference]: Start difference. First operand 35472 states and 41016 transitions. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 2 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:11,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:47:11,288 INFO L93 Difference]: Finished difference Result 70335 states and 81368 transitions. [2022-07-20 22:47:11,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:47:11,288 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 2 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 241 [2022-07-20 22:47:11,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:47:11,324 INFO L225 Difference]: With dead ends: 70335 [2022-07-20 22:47:11,325 INFO L226 Difference]: Without dead ends: 36083 [2022-07-20 22:47:11,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:47:11,341 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 133 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-20 22:47:11,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 197 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-20 22:47:11,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36083 states. [2022-07-20 22:47:11,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36083 to 36081. [2022-07-20 22:47:11,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36081 states, 36080 states have (on average 1.1554046563192906) internal successors, (41687), 36080 states have internal predecessors, (41687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:11,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36081 states to 36081 states and 41687 transitions. [2022-07-20 22:47:11,821 INFO L78 Accepts]: Start accepts. Automaton has 36081 states and 41687 transitions. Word has length 241 [2022-07-20 22:47:11,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:47:11,821 INFO L495 AbstractCegarLoop]: Abstraction has 36081 states and 41687 transitions. [2022-07-20 22:47:11,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 2 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:11,822 INFO L276 IsEmpty]: Start isEmpty. Operand 36081 states and 41687 transitions. [2022-07-20 22:47:11,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-07-20 22:47:11,840 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:47:11,840 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:47:11,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-20 22:47:11,841 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:47:11,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:47:11,841 INFO L85 PathProgramCache]: Analyzing trace with hash -178927718, now seen corresponding path program 1 times [2022-07-20 22:47:11,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:47:11,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281500845] [2022-07-20 22:47:11,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:47:11,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:47:11,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:47:11,939 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 92 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-07-20 22:47:11,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:47:11,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281500845] [2022-07-20 22:47:11,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281500845] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 22:47:11,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2089914281] [2022-07-20 22:47:11,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:47:11,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 22:47:11,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 22:47:11,944 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 22:47:11,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-20 22:47:12,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:47:12,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-20 22:47:12,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 22:47:12,179 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-20 22:47:12,180 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 22:47:12,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2089914281] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:47:12,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 22:47:12,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2022-07-20 22:47:12,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531672436] [2022-07-20 22:47:12,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:47:12,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:47:12,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:47:12,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:47:12,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 22:47:12,183 INFO L87 Difference]: Start difference. First operand 36081 states and 41687 transitions. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 2 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:12,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:47:12,781 INFO L93 Difference]: Finished difference Result 63753 states and 73373 transitions. [2022-07-20 22:47:12,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:47:12,782 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 2 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 248 [2022-07-20 22:47:12,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:47:12,811 INFO L225 Difference]: With dead ends: 63753 [2022-07-20 22:47:12,812 INFO L226 Difference]: Without dead ends: 29501 [2022-07-20 22:47:12,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 22:47:12,827 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 308 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 22:47:12,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 31 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 22:47:12,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29501 states. [2022-07-20 22:47:13,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29501 to 28892. [2022-07-20 22:47:13,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28892 states, 28891 states have (on average 1.134505555363262) internal successors, (32777), 28891 states have internal predecessors, (32777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:13,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28892 states to 28892 states and 32777 transitions. [2022-07-20 22:47:13,159 INFO L78 Accepts]: Start accepts. Automaton has 28892 states and 32777 transitions. Word has length 248 [2022-07-20 22:47:13,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:47:13,159 INFO L495 AbstractCegarLoop]: Abstraction has 28892 states and 32777 transitions. [2022-07-20 22:47:13,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 2 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:13,159 INFO L276 IsEmpty]: Start isEmpty. Operand 28892 states and 32777 transitions. [2022-07-20 22:47:13,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-07-20 22:47:13,301 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:47:13,301 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:47:13,335 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-20 22:47:13,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 22:47:13,502 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:47:13,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:47:13,503 INFO L85 PathProgramCache]: Analyzing trace with hash 2059293100, now seen corresponding path program 1 times [2022-07-20 22:47:13,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:47:13,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757693398] [2022-07-20 22:47:13,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:47:13,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:47:13,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:47:13,644 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 113 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-20 22:47:13,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:47:13,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757693398] [2022-07-20 22:47:13,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757693398] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 22:47:13,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [820196245] [2022-07-20 22:47:13,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:47:13,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 22:47:13,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 22:47:13,647 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 22:47:13,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-20 22:47:13,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:47:13,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 22:47:13,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 22:47:13,905 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-07-20 22:47:13,905 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 22:47:13,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [820196245] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:47:13,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 22:47:13,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2022-07-20 22:47:13,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058899242] [2022-07-20 22:47:13,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:47:13,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:47:13,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:47:13,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:47:13,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-20 22:47:13,907 INFO L87 Difference]: Start difference. First operand 28892 states and 32777 transitions. Second operand has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 2 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:14,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:47:14,629 INFO L93 Difference]: Finished difference Result 63488 states and 72357 transitions. [2022-07-20 22:47:14,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:47:14,629 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 2 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 274 [2022-07-20 22:47:14,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:47:14,668 INFO L225 Difference]: With dead ends: 63488 [2022-07-20 22:47:14,668 INFO L226 Difference]: Without dead ends: 36222 [2022-07-20 22:47:14,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-20 22:47:14,689 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 154 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-20 22:47:14,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 156 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-20 22:47:14,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36222 states. [2022-07-20 22:47:15,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36222 to 35800. [2022-07-20 22:47:15,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35800 states, 35799 states have (on average 1.1381602838068103) internal successors, (40745), 35799 states have internal predecessors, (40745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:15,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35800 states to 35800 states and 40745 transitions. [2022-07-20 22:47:15,126 INFO L78 Accepts]: Start accepts. Automaton has 35800 states and 40745 transitions. Word has length 274 [2022-07-20 22:47:15,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:47:15,126 INFO L495 AbstractCegarLoop]: Abstraction has 35800 states and 40745 transitions. [2022-07-20 22:47:15,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 2 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:15,126 INFO L276 IsEmpty]: Start isEmpty. Operand 35800 states and 40745 transitions. [2022-07-20 22:47:15,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-07-20 22:47:15,142 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:47:15,143 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:47:15,159 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-07-20 22:47:15,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-07-20 22:47:15,344 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:47:15,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:47:15,344 INFO L85 PathProgramCache]: Analyzing trace with hash -618021616, now seen corresponding path program 1 times [2022-07-20 22:47:15,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:47:15,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778177042] [2022-07-20 22:47:15,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:47:15,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:47:15,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:47:15,495 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2022-07-20 22:47:15,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:47:15,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778177042] [2022-07-20 22:47:15,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778177042] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:47:15,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:47:15,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 22:47:15,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501502778] [2022-07-20 22:47:15,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:47:15,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:47:15,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:47:15,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:47:15,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:47:15,498 INFO L87 Difference]: Start difference. First operand 35800 states and 40745 transitions. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 2 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:16,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:47:16,297 INFO L93 Difference]: Finished difference Result 77918 states and 88964 transitions. [2022-07-20 22:47:16,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:47:16,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 2 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 275 [2022-07-20 22:47:16,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:47:16,346 INFO L225 Difference]: With dead ends: 77918 [2022-07-20 22:47:16,347 INFO L226 Difference]: Without dead ends: 44353 [2022-07-20 22:47:16,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:47:16,373 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 207 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-20 22:47:16,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 163 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-20 22:47:16,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44353 states. [2022-07-20 22:47:16,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44353 to 44348. [2022-07-20 22:47:16,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44348 states, 44347 states have (on average 1.142106568651769) internal successors, (50649), 44347 states have internal predecessors, (50649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:16,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44348 states to 44348 states and 50649 transitions. [2022-07-20 22:47:16,842 INFO L78 Accepts]: Start accepts. Automaton has 44348 states and 50649 transitions. Word has length 275 [2022-07-20 22:47:16,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:47:16,842 INFO L495 AbstractCegarLoop]: Abstraction has 44348 states and 50649 transitions. [2022-07-20 22:47:16,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 2 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:16,843 INFO L276 IsEmpty]: Start isEmpty. Operand 44348 states and 50649 transitions. [2022-07-20 22:47:16,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2022-07-20 22:47:16,863 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:47:16,864 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:47:16,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-20 22:47:16,864 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:47:16,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:47:16,865 INFO L85 PathProgramCache]: Analyzing trace with hash 819492618, now seen corresponding path program 1 times [2022-07-20 22:47:16,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:47:16,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340023339] [2022-07-20 22:47:16,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:47:16,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:47:16,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:47:17,005 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-20 22:47:17,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:47:17,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340023339] [2022-07-20 22:47:17,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340023339] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:47:17,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:47:17,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 22:47:17,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526239301] [2022-07-20 22:47:17,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:47:17,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 22:47:17,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:47:17,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 22:47:17,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-20 22:47:17,008 INFO L87 Difference]: Start difference. First operand 44348 states and 50649 transitions. Second operand has 4 states, 4 states have (on average 62.75) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:17,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:47:17,897 INFO L93 Difference]: Finished difference Result 86465 states and 99207 transitions. [2022-07-20 22:47:17,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 22:47:17,898 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.75) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 285 [2022-07-20 22:47:17,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:47:17,944 INFO L225 Difference]: With dead ends: 86465 [2022-07-20 22:47:17,944 INFO L226 Difference]: Without dead ends: 44555 [2022-07-20 22:47:17,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-20 22:47:17,972 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 435 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 844 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-20 22:47:17,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [435 Valid, 62 Invalid, 975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 844 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-20 22:47:17,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44555 states. [2022-07-20 22:47:18,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44555 to 41507. [2022-07-20 22:47:18,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41507 states, 41506 states have (on average 1.1329928203151352) internal successors, (47026), 41506 states have internal predecessors, (47026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:18,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41507 states to 41507 states and 47026 transitions. [2022-07-20 22:47:18,472 INFO L78 Accepts]: Start accepts. Automaton has 41507 states and 47026 transitions. Word has length 285 [2022-07-20 22:47:18,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:47:18,472 INFO L495 AbstractCegarLoop]: Abstraction has 41507 states and 47026 transitions. [2022-07-20 22:47:18,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.75) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:18,472 INFO L276 IsEmpty]: Start isEmpty. Operand 41507 states and 47026 transitions. [2022-07-20 22:47:18,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-07-20 22:47:18,490 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:47:18,491 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:47:18,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-20 22:47:18,491 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:47:18,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:47:18,492 INFO L85 PathProgramCache]: Analyzing trace with hash 271852871, now seen corresponding path program 1 times [2022-07-20 22:47:18,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:47:18,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323891999] [2022-07-20 22:47:18,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:47:18,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:47:18,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:47:18,638 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-20 22:47:18,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:47:18,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323891999] [2022-07-20 22:47:18,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323891999] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:47:18,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:47:18,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 22:47:18,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820112991] [2022-07-20 22:47:18,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:47:18,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 22:47:18,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:47:18,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 22:47:18,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-20 22:47:18,642 INFO L87 Difference]: Start difference. First operand 41507 states and 47026 transitions. Second operand has 4 states, 4 states have (on average 67.5) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:19,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:47:19,736 INFO L93 Difference]: Finished difference Result 75100 states and 84813 transitions. [2022-07-20 22:47:19,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 22:47:19,736 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 67.5) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 288 [2022-07-20 22:47:19,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:47:19,787 INFO L225 Difference]: With dead ends: 75100 [2022-07-20 22:47:19,787 INFO L226 Difference]: Without dead ends: 44174 [2022-07-20 22:47:19,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-20 22:47:19,817 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 361 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 1306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-20 22:47:19,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 137 Invalid, 1306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 1085 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-20 22:47:19,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44174 states. [2022-07-20 22:47:20,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44174 to 41916. [2022-07-20 22:47:20,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41916 states, 41915 states have (on average 1.1323631158296552) internal successors, (47463), 41915 states have internal predecessors, (47463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:20,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41916 states to 41916 states and 47463 transitions. [2022-07-20 22:47:20,323 INFO L78 Accepts]: Start accepts. Automaton has 41916 states and 47463 transitions. Word has length 288 [2022-07-20 22:47:20,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:47:20,324 INFO L495 AbstractCegarLoop]: Abstraction has 41916 states and 47463 transitions. [2022-07-20 22:47:20,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 67.5) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:20,324 INFO L276 IsEmpty]: Start isEmpty. Operand 41916 states and 47463 transitions. [2022-07-20 22:47:20,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-07-20 22:47:20,340 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:47:20,340 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:47:20,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-20 22:47:20,341 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:47:20,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:47:20,341 INFO L85 PathProgramCache]: Analyzing trace with hash 66599051, now seen corresponding path program 1 times [2022-07-20 22:47:20,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:47:20,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435772560] [2022-07-20 22:47:20,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:47:20,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:47:20,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:47:20,445 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 123 proven. 6 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-07-20 22:47:20,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:47:20,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435772560] [2022-07-20 22:47:20,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435772560] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 22:47:20,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1714293830] [2022-07-20 22:47:20,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:47:20,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 22:47:20,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 22:47:20,448 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 22:47:20,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-20 22:47:20,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:47:20,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 22:47:20,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 22:47:20,661 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 214 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-07-20 22:47:20,661 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 22:47:20,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1714293830] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:47:20,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 22:47:20,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2022-07-20 22:47:20,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74073220] [2022-07-20 22:47:20,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:47:20,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:47:20,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:47:20,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:47:20,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 22:47:20,666 INFO L87 Difference]: Start difference. First operand 41916 states and 47463 transitions. Second operand has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:21,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:47:21,379 INFO L93 Difference]: Finished difference Result 87491 states and 98853 transitions. [2022-07-20 22:47:21,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:47:21,380 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2022-07-20 22:47:21,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:47:21,426 INFO L225 Difference]: With dead ends: 87491 [2022-07-20 22:47:21,426 INFO L226 Difference]: Without dead ends: 45374 [2022-07-20 22:47:21,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 22:47:21,456 INFO L413 NwaCegarLoop]: 340 mSDtfsCounter, 187 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-20 22:47:21,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 361 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-20 22:47:21,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45374 states. [2022-07-20 22:47:21,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45374 to 40698. [2022-07-20 22:47:21,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40698 states, 40697 states have (on average 1.0836179570975748) internal successors, (44100), 40697 states have internal predecessors, (44100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:21,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40698 states to 40698 states and 44100 transitions. [2022-07-20 22:47:21,917 INFO L78 Accepts]: Start accepts. Automaton has 40698 states and 44100 transitions. Word has length 296 [2022-07-20 22:47:21,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:47:21,917 INFO L495 AbstractCegarLoop]: Abstraction has 40698 states and 44100 transitions. [2022-07-20 22:47:21,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:21,918 INFO L276 IsEmpty]: Start isEmpty. Operand 40698 states and 44100 transitions. [2022-07-20 22:47:21,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2022-07-20 22:47:21,935 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:47:21,935 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:47:21,952 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-07-20 22:47:22,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 22:47:22,136 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:47:22,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:47:22,137 INFO L85 PathProgramCache]: Analyzing trace with hash -623763948, now seen corresponding path program 1 times [2022-07-20 22:47:22,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:47:22,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282729001] [2022-07-20 22:47:22,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:47:22,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:47:22,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:47:22,279 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 152 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-20 22:47:22,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:47:22,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282729001] [2022-07-20 22:47:22,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282729001] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 22:47:22,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1208159006] [2022-07-20 22:47:22,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:47:22,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 22:47:22,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 22:47:22,282 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 22:47:22,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-20 22:47:22,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:47:22,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 560 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 22:47:22,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 22:47:22,606 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-07-20 22:47:22,607 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 22:47:22,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1208159006] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:47:22,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 22:47:22,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2022-07-20 22:47:22,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755499522] [2022-07-20 22:47:22,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:47:22,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:47:22,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:47:22,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:47:22,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-20 22:47:22,615 INFO L87 Difference]: Start difference. First operand 40698 states and 44100 transitions. Second operand has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 2 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:23,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:47:23,043 INFO L93 Difference]: Finished difference Result 103572 states and 111996 transitions. [2022-07-20 22:47:23,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:47:23,043 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 2 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 316 [2022-07-20 22:47:23,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:47:23,117 INFO L225 Difference]: With dead ends: 103572 [2022-07-20 22:47:23,117 INFO L226 Difference]: Without dead ends: 65315 [2022-07-20 22:47:23,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 315 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-20 22:47:23,152 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 178 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 22:47:23,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 472 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 22:47:23,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65315 states. [2022-07-20 22:47:23,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65315 to 63276. [2022-07-20 22:47:23,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63276 states, 63275 states have (on average 1.0787040695377321) internal successors, (68255), 63275 states have internal predecessors, (68255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:23,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63276 states to 63276 states and 68255 transitions. [2022-07-20 22:47:23,801 INFO L78 Accepts]: Start accepts. Automaton has 63276 states and 68255 transitions. Word has length 316 [2022-07-20 22:47:23,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:47:23,801 INFO L495 AbstractCegarLoop]: Abstraction has 63276 states and 68255 transitions. [2022-07-20 22:47:23,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 2 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:23,802 INFO L276 IsEmpty]: Start isEmpty. Operand 63276 states and 68255 transitions. [2022-07-20 22:47:23,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2022-07-20 22:47:23,825 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:47:23,825 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:47:23,849 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-20 22:47:24,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 22:47:24,049 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:47:24,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:47:24,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1212668539, now seen corresponding path program 1 times [2022-07-20 22:47:24,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:47:24,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670677778] [2022-07-20 22:47:24,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:47:24,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:47:24,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:47:24,154 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 111 proven. 6 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2022-07-20 22:47:24,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:47:24,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670677778] [2022-07-20 22:47:24,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670677778] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 22:47:24,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2111898807] [2022-07-20 22:47:24,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:47:24,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 22:47:24,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 22:47:24,156 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 22:47:24,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-20 22:47:24,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:47:24,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-20 22:47:24,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 22:47:24,478 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 239 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-07-20 22:47:24,479 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 22:47:24,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2111898807] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:47:24,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 22:47:24,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2022-07-20 22:47:24,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127165514] [2022-07-20 22:47:24,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:47:24,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:47:24,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:47:24,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:47:24,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 22:47:24,483 INFO L87 Difference]: Start difference. First operand 63276 states and 68255 transitions. Second operand has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:25,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:47:25,256 INFO L93 Difference]: Finished difference Result 118839 states and 128340 transitions. [2022-07-20 22:47:25,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:47:25,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 333 [2022-07-20 22:47:25,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:47:25,324 INFO L225 Difference]: With dead ends: 118839 [2022-07-20 22:47:25,324 INFO L226 Difference]: Without dead ends: 57392 [2022-07-20 22:47:25,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 22:47:25,366 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 162 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-20 22:47:25,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 308 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-20 22:47:25,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57392 states. [2022-07-20 22:47:26,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57392 to 56977. [2022-07-20 22:47:26,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56977 states, 56976 states have (on average 1.072293597304128) internal successors, (61095), 56976 states have internal predecessors, (61095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:26,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56977 states to 56977 states and 61095 transitions. [2022-07-20 22:47:26,487 INFO L78 Accepts]: Start accepts. Automaton has 56977 states and 61095 transitions. Word has length 333 [2022-07-20 22:47:26,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:47:26,487 INFO L495 AbstractCegarLoop]: Abstraction has 56977 states and 61095 transitions. [2022-07-20 22:47:26,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:26,488 INFO L276 IsEmpty]: Start isEmpty. Operand 56977 states and 61095 transitions. [2022-07-20 22:47:26,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2022-07-20 22:47:26,505 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:47:26,505 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:47:26,523 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-20 22:47:26,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 22:47:26,706 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:47:26,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:47:26,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1056734872, now seen corresponding path program 1 times [2022-07-20 22:47:26,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:47:26,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899263815] [2022-07-20 22:47:26,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:47:26,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:47:26,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:47:26,884 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 183 proven. 9 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-20 22:47:26,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:47:26,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899263815] [2022-07-20 22:47:26,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899263815] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 22:47:26,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99939843] [2022-07-20 22:47:26,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:47:26,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 22:47:26,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 22:47:26,887 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 22:47:26,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-20 22:47:27,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:47:27,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 22:47:27,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 22:47:27,681 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 169 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-07-20 22:47:27,681 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 22:47:27,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [99939843] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:47:27,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 22:47:27,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-07-20 22:47:27,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424106491] [2022-07-20 22:47:27,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:47:27,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:47:27,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:47:27,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:47:27,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-20 22:47:27,683 INFO L87 Difference]: Start difference. First operand 56977 states and 61095 transitions. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:28,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:47:28,334 INFO L93 Difference]: Finished difference Result 109084 states and 117104 transitions. [2022-07-20 22:47:28,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:47:28,334 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 339 [2022-07-20 22:47:28,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:47:28,397 INFO L225 Difference]: With dead ends: 109084 [2022-07-20 22:47:28,397 INFO L226 Difference]: Without dead ends: 56579 [2022-07-20 22:47:28,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-20 22:47:28,431 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 102 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-20 22:47:28,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 58 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-20 22:47:28,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56579 states. [2022-07-20 22:47:29,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56579 to 56567. [2022-07-20 22:47:29,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56567 states, 56566 states have (on average 1.0722342042923312) internal successors, (60652), 56566 states have internal predecessors, (60652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:29,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56567 states to 56567 states and 60652 transitions. [2022-07-20 22:47:29,372 INFO L78 Accepts]: Start accepts. Automaton has 56567 states and 60652 transitions. Word has length 339 [2022-07-20 22:47:29,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:47:29,373 INFO L495 AbstractCegarLoop]: Abstraction has 56567 states and 60652 transitions. [2022-07-20 22:47:29,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:29,373 INFO L276 IsEmpty]: Start isEmpty. Operand 56567 states and 60652 transitions. [2022-07-20 22:47:29,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2022-07-20 22:47:29,395 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:47:29,396 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:47:29,421 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-20 22:47:29,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-07-20 22:47:29,612 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:47:29,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:47:29,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1254391138, now seen corresponding path program 1 times [2022-07-20 22:47:29,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:47:29,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415551396] [2022-07-20 22:47:29,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:47:29,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:47:29,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:47:29,719 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 147 proven. 6 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2022-07-20 22:47:29,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:47:29,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415551396] [2022-07-20 22:47:29,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415551396] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 22:47:29,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [108995667] [2022-07-20 22:47:29,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:47:29,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 22:47:29,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 22:47:29,722 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 22:47:29,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-20 22:47:29,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:47:29,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-20 22:47:29,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 22:47:30,101 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 258 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2022-07-20 22:47:30,101 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 22:47:30,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [108995667] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:47:30,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 22:47:30,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2022-07-20 22:47:30,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328991203] [2022-07-20 22:47:30,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:47:30,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:47:30,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:47:30,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:47:30,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 22:47:30,103 INFO L87 Difference]: Start difference. First operand 56567 states and 60652 transitions. Second operand has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:30,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:47:30,825 INFO L93 Difference]: Finished difference Result 111331 states and 119298 transitions. [2022-07-20 22:47:30,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:47:30,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 362 [2022-07-20 22:47:30,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:47:30,826 INFO L225 Difference]: With dead ends: 111331 [2022-07-20 22:47:30,826 INFO L226 Difference]: Without dead ends: 0 [2022-07-20 22:47:30,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 22:47:30,870 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 61 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-20 22:47:30,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 330 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-20 22:47:30,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-20 22:47:30,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-20 22:47:30,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:30,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-20 22:47:30,871 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 362 [2022-07-20 22:47:30,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:47:30,872 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-20 22:47:30,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:47:30,872 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-20 22:47:30,872 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-20 22:47:30,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-20 22:47:30,896 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-20 22:47:31,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 22:47:31,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-20 22:47:42,028 INFO L899 garLoopResultBuilder]: For program point L1621(line 1621) no Hoare annotation was computed. [2022-07-20 22:47:42,028 INFO L899 garLoopResultBuilder]: For program point L1555(line 1555) no Hoare annotation was computed. [2022-07-20 22:47:42,028 INFO L899 garLoopResultBuilder]: For program point L498(lines 498 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,028 INFO L899 garLoopResultBuilder]: For program point L1489(line 1489) no Hoare annotation was computed. [2022-07-20 22:47:42,028 INFO L899 garLoopResultBuilder]: For program point L432(lines 432 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,029 INFO L899 garLoopResultBuilder]: For program point L366(lines 366 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,029 INFO L899 garLoopResultBuilder]: For program point L763(lines 763 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,029 INFO L899 garLoopResultBuilder]: For program point L632(lines 632 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,029 INFO L899 garLoopResultBuilder]: For program point L566(lines 566 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,029 INFO L899 garLoopResultBuilder]: For program point L1623-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,029 INFO L899 garLoopResultBuilder]: For program point L1557-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,029 INFO L899 garLoopResultBuilder]: For program point L1491-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,029 INFO L899 garLoopResultBuilder]: For program point L302(lines 302 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,029 INFO L899 garLoopResultBuilder]: For program point L1293(lines 1293 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,029 INFO L899 garLoopResultBuilder]: For program point L1624(line 1624) no Hoare annotation was computed. [2022-07-20 22:47:42,029 INFO L899 garLoopResultBuilder]: For program point L1558(line 1558) no Hoare annotation was computed. [2022-07-20 22:47:42,031 INFO L899 garLoopResultBuilder]: For program point L1492(line 1492) no Hoare annotation was computed. [2022-07-20 22:47:42,031 INFO L899 garLoopResultBuilder]: For program point L1360(lines 1360 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,031 INFO L899 garLoopResultBuilder]: For program point L1294(lines 1294 1313) no Hoare annotation was computed. [2022-07-20 22:47:42,031 INFO L899 garLoopResultBuilder]: For program point L1294-2(lines 1294 1313) no Hoare annotation was computed. [2022-07-20 22:47:42,032 INFO L899 garLoopResultBuilder]: For program point L1162(lines 1162 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,032 INFO L899 garLoopResultBuilder]: For program point L105(lines 105 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,032 INFO L899 garLoopResultBuilder]: For program point L1096(lines 1096 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,032 INFO L899 garLoopResultBuilder]: For program point L1031(lines 1031 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,032 INFO L899 garLoopResultBuilder]: For program point L965(lines 965 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,032 INFO L899 garLoopResultBuilder]: For program point L899(lines 899 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,032 INFO L899 garLoopResultBuilder]: For program point L1626-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,032 INFO L899 garLoopResultBuilder]: For program point L1560-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,033 INFO L899 garLoopResultBuilder]: For program point L1494-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,033 INFO L899 garLoopResultBuilder]: For program point L1627(line 1627) no Hoare annotation was computed. [2022-07-20 22:47:42,033 INFO L899 garLoopResultBuilder]: For program point L1561(line 1561) no Hoare annotation was computed. [2022-07-20 22:47:42,033 INFO L899 garLoopResultBuilder]: For program point L1495(line 1495) no Hoare annotation was computed. [2022-07-20 22:47:42,033 INFO L899 garLoopResultBuilder]: For program point L174(lines 174 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,033 INFO L899 garLoopResultBuilder]: For program point L835(lines 835 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,033 INFO L899 garLoopResultBuilder]: For program point L1629-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,033 INFO L899 garLoopResultBuilder]: For program point L1563-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,034 INFO L899 garLoopResultBuilder]: For program point L1497-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,034 INFO L899 garLoopResultBuilder]: For program point L771(lines 771 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,034 INFO L899 garLoopResultBuilder]: For program point L1630(line 1630) no Hoare annotation was computed. [2022-07-20 22:47:42,034 INFO L899 garLoopResultBuilder]: For program point L1564(line 1564) no Hoare annotation was computed. [2022-07-20 22:47:42,034 INFO L899 garLoopResultBuilder]: For program point L507(lines 507 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,034 INFO L899 garLoopResultBuilder]: For program point L1498(line 1498) no Hoare annotation was computed. [2022-07-20 22:47:42,034 INFO L899 garLoopResultBuilder]: For program point L243(lines 243 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,034 INFO L899 garLoopResultBuilder]: For program point L508(lines 508 521) no Hoare annotation was computed. [2022-07-20 22:47:42,035 INFO L899 garLoopResultBuilder]: For program point L508-2(lines 508 521) no Hoare annotation was computed. [2022-07-20 22:47:42,035 INFO L899 garLoopResultBuilder]: For program point L1433(lines 1433 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,035 INFO L899 garLoopResultBuilder]: For program point L376(lines 376 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,035 INFO L899 garLoopResultBuilder]: For program point L1632-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,035 INFO L899 garLoopResultBuilder]: For program point L1566-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,035 INFO L899 garLoopResultBuilder]: For program point L1500-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,035 INFO L899 garLoopResultBuilder]: For program point L311(lines 311 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,035 INFO L899 garLoopResultBuilder]: For program point L1236(lines 1236 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,036 INFO L899 garLoopResultBuilder]: For program point L1633(line 1633) no Hoare annotation was computed. [2022-07-20 22:47:42,036 INFO L899 garLoopResultBuilder]: For program point L576(lines 576 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,036 INFO L899 garLoopResultBuilder]: For program point L1567(line 1567) no Hoare annotation was computed. [2022-07-20 22:47:42,036 INFO L899 garLoopResultBuilder]: For program point L1501(line 1501) no Hoare annotation was computed. [2022-07-20 22:47:42,036 INFO L899 garLoopResultBuilder]: For program point L444(lines 444 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,036 INFO L899 garLoopResultBuilder]: For program point L1369(lines 1369 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,036 INFO L899 garLoopResultBuilder]: For program point L1105(lines 1105 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,036 INFO L899 garLoopResultBuilder]: For program point L643(lines 643 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,037 INFO L899 garLoopResultBuilder]: For program point L1370(lines 1370 1389) no Hoare annotation was computed. [2022-07-20 22:47:42,037 INFO L899 garLoopResultBuilder]: For program point L1370-2(lines 1370 1389) no Hoare annotation was computed. [2022-07-20 22:47:42,037 INFO L899 garLoopResultBuilder]: For program point L1172(lines 1172 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,037 INFO L899 garLoopResultBuilder]: For program point L115(lines 115 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,037 INFO L899 garLoopResultBuilder]: For program point L1635-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,037 INFO L899 garLoopResultBuilder]: For program point L1569-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,037 INFO L899 garLoopResultBuilder]: For program point L1503-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,038 INFO L899 garLoopResultBuilder]: For program point L248(lines 248 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,038 INFO L899 garLoopResultBuilder]: For program point L182(lines 182 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,038 INFO L899 garLoopResultBuilder]: For program point L1041(lines 1041 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,038 INFO L899 garLoopResultBuilder]: For program point L909(lines 909 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,038 INFO L899 garLoopResultBuilder]: For program point L711(lines 711 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,038 INFO L899 garLoopResultBuilder]: For program point L1636(line 1636) no Hoare annotation was computed. [2022-07-20 22:47:42,038 INFO L899 garLoopResultBuilder]: For program point L1570(line 1570) no Hoare annotation was computed. [2022-07-20 22:47:42,039 INFO L899 garLoopResultBuilder]: For program point L1504(line 1504) no Hoare annotation was computed. [2022-07-20 22:47:42,039 INFO L899 garLoopResultBuilder]: For program point L976(lines 976 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,039 INFO L899 garLoopResultBuilder]: For program point L779(lines 779 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,039 INFO L899 garLoopResultBuilder]: For program point L1638-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,039 INFO L899 garLoopResultBuilder]: For program point L1572-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,039 INFO L899 garLoopResultBuilder]: For program point L1506-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,040 INFO L899 garLoopResultBuilder]: For program point L846(lines 846 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,040 INFO L899 garLoopResultBuilder]: For program point L1639(line 1639) no Hoare annotation was computed. [2022-07-20 22:47:42,040 INFO L899 garLoopResultBuilder]: For program point L1573(line 1573) no Hoare annotation was computed. [2022-07-20 22:47:42,040 INFO L899 garLoopResultBuilder]: For program point L1507(line 1507) no Hoare annotation was computed. [2022-07-20 22:47:42,040 INFO L899 garLoopResultBuilder]: For program point L451(lines 451 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,040 INFO L899 garLoopResultBuilder]: For program point L1442(lines 1442 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,040 INFO L899 garLoopResultBuilder]: For program point L584(lines 584 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,040 INFO L899 garLoopResultBuilder]: For program point L1641-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,040 INFO L899 garLoopResultBuilder]: For program point L1575-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,040 INFO L899 garLoopResultBuilder]: For program point L1509-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,040 INFO L899 garLoopResultBuilder]: For program point L1642(line 1642) no Hoare annotation was computed. [2022-07-20 22:47:42,040 INFO L899 garLoopResultBuilder]: For program point L1576(line 1576) no Hoare annotation was computed. [2022-07-20 22:47:42,040 INFO L899 garLoopResultBuilder]: For program point L1510(line 1510) no Hoare annotation was computed. [2022-07-20 22:47:42,040 INFO L899 garLoopResultBuilder]: For program point L387(lines 387 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,040 INFO L899 garLoopResultBuilder]: For program point L1114(lines 1114 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,040 INFO L899 garLoopResultBuilder]: For program point L1048(lines 1048 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,040 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 405) no Hoare annotation was computed. [2022-07-20 22:47:42,041 INFO L899 garLoopResultBuilder]: For program point L322(lines 322 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,041 INFO L899 garLoopResultBuilder]: For program point L388-2(lines 388 405) no Hoare annotation was computed. [2022-07-20 22:47:42,041 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-20 22:47:42,041 INFO L899 garLoopResultBuilder]: For program point L1247(lines 1247 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,041 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,041 INFO L899 garLoopResultBuilder]: For program point L1049(lines 1049 1069) no Hoare annotation was computed. [2022-07-20 22:47:42,041 INFO L899 garLoopResultBuilder]: For program point L1049-2(lines 1049 1069) no Hoare annotation was computed. [2022-07-20 22:47:42,041 INFO L899 garLoopResultBuilder]: For program point L917(lines 917 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,041 INFO L899 garLoopResultBuilder]: For program point L719(lines 719 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,041 INFO L899 garLoopResultBuilder]: For program point L653(lines 653 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,041 INFO L899 garLoopResultBuilder]: For program point L1644-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,041 INFO L899 garLoopResultBuilder]: For program point L1578-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,041 INFO L899 garLoopResultBuilder]: For program point L1512-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,041 INFO L899 garLoopResultBuilder]: For program point L191(lines 191 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,041 INFO L899 garLoopResultBuilder]: For program point L720(lines 720 741) no Hoare annotation was computed. [2022-07-20 22:47:42,041 INFO L899 garLoopResultBuilder]: For program point L720-2(lines 720 741) no Hoare annotation was computed. [2022-07-20 22:47:42,041 INFO L899 garLoopResultBuilder]: For program point L1645(line 1645) no Hoare annotation was computed. [2022-07-20 22:47:42,041 INFO L899 garLoopResultBuilder]: For program point L1579(line 1579) no Hoare annotation was computed. [2022-07-20 22:47:42,042 INFO L899 garLoopResultBuilder]: For program point L1513(line 1513) no Hoare annotation was computed. [2022-07-20 22:47:42,042 INFO L899 garLoopResultBuilder]: For program point L1315(lines 1315 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,042 INFO L899 garLoopResultBuilder]: For program point L258(lines 258 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,042 INFO L899 garLoopResultBuilder]: For program point L1183(lines 1183 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,042 INFO L899 garLoopResultBuilder]: For program point L985(lines 985 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,042 INFO L899 garLoopResultBuilder]: For program point L787(lines 787 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,042 INFO L899 garLoopResultBuilder]: For program point L523(lines 523 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,042 INFO L899 garLoopResultBuilder]: For program point L854(lines 854 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,042 INFO L899 garLoopResultBuilder]: For program point L1647-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,042 INFO L899 garLoopResultBuilder]: For program point L1581-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,042 INFO L899 garLoopResultBuilder]: For program point L1515-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,042 INFO L899 garLoopResultBuilder]: For program point L1648(line 1648) no Hoare annotation was computed. [2022-07-20 22:47:42,042 INFO L899 garLoopResultBuilder]: For program point L1582(line 1582) no Hoare annotation was computed. [2022-07-20 22:47:42,042 INFO L899 garLoopResultBuilder]: For program point L1516(line 1516) no Hoare annotation was computed. [2022-07-20 22:47:42,042 INFO L899 garLoopResultBuilder]: For program point L460(lines 460 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,043 INFO L899 garLoopResultBuilder]: For program point L593(lines 593 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,043 INFO L899 garLoopResultBuilder]: For program point L1650-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,043 INFO L899 garLoopResultBuilder]: For program point L1584-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,043 INFO L899 garLoopResultBuilder]: For program point L1518-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,043 INFO L899 garLoopResultBuilder]: For program point L1452(lines 1452 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,043 INFO L899 garLoopResultBuilder]: For program point L329(lines 329 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,043 INFO L899 garLoopResultBuilder]: For program point L1122(lines 1122 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,043 INFO L899 garLoopResultBuilder]: For program point L65(lines 65 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,043 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-20 22:47:42,043 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1546) no Hoare annotation was computed. [2022-07-20 22:47:42,043 INFO L899 garLoopResultBuilder]: For program point L1651(line 1651) no Hoare annotation was computed. [2022-07-20 22:47:42,043 INFO L899 garLoopResultBuilder]: For program point L1585(line 1585) no Hoare annotation was computed. [2022-07-20 22:47:42,043 INFO L899 garLoopResultBuilder]: For program point L1519(line 1519) no Hoare annotation was computed. [2022-07-20 22:47:42,043 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 81) no Hoare annotation was computed. [2022-07-20 22:47:42,043 INFO L899 garLoopResultBuilder]: For program point L66-2(lines 66 81) no Hoare annotation was computed. [2022-07-20 22:47:42,043 INFO L899 garLoopResultBuilder]: For program point L794(lines 794 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,043 INFO L899 garLoopResultBuilder]: For program point L1653-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,044 INFO L899 garLoopResultBuilder]: For program point L1587-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,044 INFO L899 garLoopResultBuilder]: For program point L1521-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,044 INFO L899 garLoopResultBuilder]: For program point L1323(lines 1323 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,044 INFO L899 garLoopResultBuilder]: For program point L993(lines 993 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,044 INFO L899 garLoopResultBuilder]: For program point L927(lines 927 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,044 INFO L899 garLoopResultBuilder]: For program point L663(lines 663 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,044 INFO L899 garLoopResultBuilder]: For program point L1654(line 1654) no Hoare annotation was computed. [2022-07-20 22:47:42,044 INFO L899 garLoopResultBuilder]: For program point L1588(line 1588) no Hoare annotation was computed. [2022-07-20 22:47:42,044 INFO L899 garLoopResultBuilder]: For program point L1522(line 1522) no Hoare annotation was computed. [2022-07-20 22:47:42,044 INFO L899 garLoopResultBuilder]: For program point L267(lines 267 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,044 INFO L899 garLoopResultBuilder]: For program point L201(lines 201 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,044 INFO L899 garLoopResultBuilder]: For program point L1192(lines 1192 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,044 INFO L899 garLoopResultBuilder]: For program point L928(lines 928 945) no Hoare annotation was computed. [2022-07-20 22:47:42,044 INFO L899 garLoopResultBuilder]: For program point L928-2(lines 928 945) no Hoare annotation was computed. [2022-07-20 22:47:42,044 INFO L899 garLoopResultBuilder]: For program point L532(lines 532 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,044 INFO L899 garLoopResultBuilder]: For program point L1391(lines 1391 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,044 INFO L899 garLoopResultBuilder]: For program point L1259(lines 1259 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,044 INFO L899 garLoopResultBuilder]: For program point L202(lines 202 221) no Hoare annotation was computed. [2022-07-20 22:47:42,045 INFO L899 garLoopResultBuilder]: For program point L136(lines 136 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,045 INFO L899 garLoopResultBuilder]: For program point L202-2(lines 202 221) no Hoare annotation was computed. [2022-07-20 22:47:42,045 INFO L899 garLoopResultBuilder]: For program point L863(lines 863 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,045 INFO L899 garLoopResultBuilder]: For program point L1656-1(lines 1656 1658) no Hoare annotation was computed. [2022-07-20 22:47:42,045 INFO L899 garLoopResultBuilder]: For program point L1590-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,045 INFO L899 garLoopResultBuilder]: For program point L1524-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,045 INFO L899 garLoopResultBuilder]: For program point L1392(lines 1392 1410) no Hoare annotation was computed. [2022-07-20 22:47:42,045 INFO L899 garLoopResultBuilder]: For program point L1392-2(lines 1392 1410) no Hoare annotation was computed. [2022-07-20 22:47:42,045 INFO L899 garLoopResultBuilder]: For program point L1260(lines 1260 1282) no Hoare annotation was computed. [2022-07-20 22:47:42,045 INFO L899 garLoopResultBuilder]: For program point L1260-2(lines 1260 1282) no Hoare annotation was computed. [2022-07-20 22:47:42,045 INFO L899 garLoopResultBuilder]: For program point L1657(line 1657) no Hoare annotation was computed. [2022-07-20 22:47:42,045 INFO L899 garLoopResultBuilder]: For program point L1591(line 1591) no Hoare annotation was computed. [2022-07-20 22:47:42,045 INFO L899 garLoopResultBuilder]: For program point L1525(line 1525) no Hoare annotation was computed. [2022-07-20 22:47:42,045 INFO L899 garLoopResultBuilder]: For program point L468(lines 468 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,045 INFO L899 garLoopResultBuilder]: For program point L1130(lines 1130 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,046 INFO L899 garLoopResultBuilder]: For program point L668(lines 668 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,046 INFO L895 garLoopResultBuilder]: At program point L1659(lines 64 1660) the Hoare annotation is: (let ((.cse10 (= ~a11~0 1))) (let ((.cse1 (= ~a12~0 1)) (.cse11 (<= 2 ~a3~0)) (.cse2 (<= ~a3~0 1)) (.cse8 (<= ~a3~0 0)) (.cse6 (= ~a6~0 0)) (.cse9 (= ~a27~0 1)) (.cse3 (<= 1 ~a3~0)) (.cse5 (<= ~a26~0 0)) (.cse7 (not .cse10)) (.cse12 (= ~a26~0 1)) (.cse0 (= ~a5~0 1)) (.cse4 (= ~a11~0 ~a6~0))) (or (and (= ~a25~0 ~a11~0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse5 .cse6 .cse7) (and (<= ~a7~0 0) .cse0 .cse1 .cse5 .cse7) (and .cse0 .cse8 .cse4 .cse9) (and .cse0 .cse10 (= ~a26~0 ~a11~0) .cse9) (and .cse0 .cse11 .cse4 .cse10 .cse9) (and .cse12 .cse0 .cse1 .cse6) (and .cse0 .cse8 .cse9 .cse7) (and .cse12 .cse0 .cse7) (and .cse0 .cse11 .cse5 .cse6) (and .cse0 .cse5 .cse6 .cse9) (and .cse12 .cse0 .cse2 .cse6) (and .cse0 .cse8 .cse6 .cse9) (and .cse0 .cse3 .cse5 .cse7) (and .cse12 .cse0 .cse4)))) [2022-07-20 22:47:42,046 INFO L899 garLoopResultBuilder]: For program point L602(lines 602 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,046 INFO L899 garLoopResultBuilder]: For program point L1593-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,047 INFO L899 garLoopResultBuilder]: For program point L1527-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,047 INFO L899 garLoopResultBuilder]: For program point L1594(line 1594) no Hoare annotation was computed. [2022-07-20 22:47:42,047 INFO L899 garLoopResultBuilder]: For program point L1528(line 1528) no Hoare annotation was computed. [2022-07-20 22:47:42,047 INFO L899 garLoopResultBuilder]: For program point L1462(lines 1462 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,047 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,047 INFO L899 garLoopResultBuilder]: For program point L1331(lines 1331 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,047 INFO L902 garLoopResultBuilder]: At program point L1662(lines 1662 1679) the Hoare annotation is: true [2022-07-20 22:47:42,047 INFO L899 garLoopResultBuilder]: For program point L539(lines 539 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,048 INFO L899 garLoopResultBuilder]: For program point L1596-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,048 INFO L899 garLoopResultBuilder]: For program point L1530-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,048 INFO L899 garLoopResultBuilder]: For program point L407(lines 407 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,048 INFO L899 garLoopResultBuilder]: For program point L275(lines 275 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,048 INFO L899 garLoopResultBuilder]: For program point L1200(lines 1200 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,048 INFO L899 garLoopResultBuilder]: For program point L1597(line 1597) no Hoare annotation was computed. [2022-07-20 22:47:42,048 INFO L899 garLoopResultBuilder]: For program point L1531(line 1531) no Hoare annotation was computed. [2022-07-20 22:47:42,049 INFO L899 garLoopResultBuilder]: For program point L805(lines 805 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,050 INFO L899 garLoopResultBuilder]: For program point L145(lines 145 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,050 INFO L899 garLoopResultBuilder]: For program point L1004(lines 1004 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,050 INFO L899 garLoopResultBuilder]: For program point L1599-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,050 INFO L899 garLoopResultBuilder]: For program point L1533-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,050 INFO L899 garLoopResultBuilder]: For program point L1137(lines 1137 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,050 INFO L899 garLoopResultBuilder]: For program point L1071(lines 1071 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,050 INFO L899 garLoopResultBuilder]: For program point L873(lines 873 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,051 INFO L899 garLoopResultBuilder]: For program point L675(lines 675 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,051 INFO L899 garLoopResultBuilder]: For program point L1600(line 1600) no Hoare annotation was computed. [2022-07-20 22:47:42,051 INFO L899 garLoopResultBuilder]: For program point L1534(line 1534) no Hoare annotation was computed. [2022-07-20 22:47:42,051 INFO L899 garLoopResultBuilder]: For program point L477(lines 477 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,051 INFO L899 garLoopResultBuilder]: For program point L1336(lines 1336 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,051 INFO L899 garLoopResultBuilder]: For program point L478(lines 478 488) no Hoare annotation was computed. [2022-07-20 22:47:42,051 INFO L899 garLoopResultBuilder]: For program point L478-2(lines 478 488) no Hoare annotation was computed. [2022-07-20 22:47:42,051 INFO L899 garLoopResultBuilder]: For program point L743(lines 743 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,051 INFO L895 garLoopResultBuilder]: At program point L1668-2(lines 1668 1678) the Hoare annotation is: (let ((.cse10 (= ~a11~0 1))) (let ((.cse1 (= ~a12~0 1)) (.cse11 (<= 2 ~a3~0)) (.cse2 (<= ~a3~0 1)) (.cse8 (<= ~a3~0 0)) (.cse6 (= ~a6~0 0)) (.cse9 (= ~a27~0 1)) (.cse3 (<= 1 ~a3~0)) (.cse5 (<= ~a26~0 0)) (.cse7 (not .cse10)) (.cse12 (= ~a26~0 1)) (.cse0 (= ~a5~0 1)) (.cse4 (= ~a11~0 ~a6~0))) (or (and (= ~a25~0 ~a11~0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse5 .cse6 .cse7) (and (<= ~a7~0 0) .cse0 .cse1 .cse5 .cse7) (and .cse0 .cse8 .cse4 .cse9) (and .cse0 .cse10 (= ~a26~0 ~a11~0) .cse9) (and .cse0 .cse11 .cse4 .cse10 .cse9) (and .cse12 .cse0 .cse1 .cse6) (and .cse0 .cse8 .cse9 .cse7) (and .cse12 .cse0 .cse7) (and .cse0 .cse11 .cse5 .cse6) (and .cse0 .cse5 .cse6 .cse9) (and .cse12 .cse0 .cse2 .cse6) (and .cse0 .cse8 .cse6 .cse9) (and .cse0 .cse3 .cse5 .cse7) (and .cse12 .cse0 .cse4)))) [2022-07-20 22:47:42,051 INFO L899 garLoopResultBuilder]: For program point L1602-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,051 INFO L899 garLoopResultBuilder]: For program point L1536-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,051 INFO L899 garLoopResultBuilder]: For program point L1470(lines 1470 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,051 INFO L899 garLoopResultBuilder]: For program point L83(lines 83 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,052 INFO L899 garLoopResultBuilder]: For program point L1603(line 1603) no Hoare annotation was computed. [2022-07-20 22:47:42,052 INFO L899 garLoopResultBuilder]: For program point L1537(line 1537) no Hoare annotation was computed. [2022-07-20 22:47:42,052 INFO L899 garLoopResultBuilder]: For program point L613(lines 613 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,052 INFO L899 garLoopResultBuilder]: For program point L415(lines 415 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,052 INFO L899 garLoopResultBuilder]: For program point L349(lines 349 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,052 INFO L899 garLoopResultBuilder]: For program point L1142(lines 1142 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,052 INFO L899 garLoopResultBuilder]: For program point L1076(lines 1076 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,052 INFO L899 garLoopResultBuilder]: For program point L878(lines 878 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,052 INFO L899 garLoopResultBuilder]: For program point L1605-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,052 INFO L899 garLoopResultBuilder]: For program point L1539-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,052 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-20 22:47:42,052 INFO L899 garLoopResultBuilder]: For program point L879(lines 879 897) no Hoare annotation was computed. [2022-07-20 22:47:42,052 INFO L899 garLoopResultBuilder]: For program point L879-2(lines 879 897) no Hoare annotation was computed. [2022-07-20 22:47:42,052 INFO L899 garLoopResultBuilder]: For program point L1606(line 1606) no Hoare annotation was computed. [2022-07-20 22:47:42,052 INFO L899 garLoopResultBuilder]: For program point L549(lines 549 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,052 INFO L899 garLoopResultBuilder]: For program point L1540(line 1540) no Hoare annotation was computed. [2022-07-20 22:47:42,052 INFO L899 garLoopResultBuilder]: For program point L1210(lines 1210 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,052 INFO L899 garLoopResultBuilder]: For program point L814(lines 814 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,053 INFO L899 garLoopResultBuilder]: For program point L1673(line 1673) no Hoare annotation was computed. [2022-07-20 22:47:42,053 INFO L899 garLoopResultBuilder]: For program point L286(lines 286 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,053 INFO L899 garLoopResultBuilder]: For program point L1013(lines 1013 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,053 INFO L899 garLoopResultBuilder]: For program point L947(lines 947 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,053 INFO L899 garLoopResultBuilder]: For program point L1608-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,053 INFO L899 garLoopResultBuilder]: For program point L1542-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,053 INFO L899 garLoopResultBuilder]: For program point L1476(lines 1476 1478) no Hoare annotation was computed. [2022-07-20 22:47:42,053 INFO L899 garLoopResultBuilder]: For program point L1476-2(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,054 INFO L899 garLoopResultBuilder]: For program point L1609(line 1609) no Hoare annotation was computed. [2022-07-20 22:47:42,054 INFO L899 garLoopResultBuilder]: For program point L1543(line 1543) no Hoare annotation was computed. [2022-07-20 22:47:42,054 INFO L899 garLoopResultBuilder]: For program point L1477(line 1477) no Hoare annotation was computed. [2022-07-20 22:47:42,054 INFO L899 garLoopResultBuilder]: For program point L156(lines 156 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,054 INFO L899 garLoopResultBuilder]: For program point L685(lines 685 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,054 INFO L899 garLoopResultBuilder]: For program point L1412(lines 1412 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,054 INFO L899 garLoopResultBuilder]: For program point L1346(lines 1346 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,054 INFO L899 garLoopResultBuilder]: For program point L223(lines 223 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,055 INFO L899 garLoopResultBuilder]: For program point L1611-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,055 INFO L899 garLoopResultBuilder]: For program point L1545-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,055 INFO L899 garLoopResultBuilder]: For program point L1479-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,055 INFO L899 garLoopResultBuilder]: For program point L1413(lines 1413 1431) no Hoare annotation was computed. [2022-07-20 22:47:42,055 INFO L899 garLoopResultBuilder]: For program point L1413-2(lines 1413 1431) no Hoare annotation was computed. [2022-07-20 22:47:42,055 INFO L899 garLoopResultBuilder]: For program point L92(lines 92 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,055 INFO L899 garLoopResultBuilder]: For program point L753(lines 753 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,055 INFO L899 garLoopResultBuilder]: For program point L1612(line 1612) no Hoare annotation was computed. [2022-07-20 22:47:42,056 INFO L899 garLoopResultBuilder]: For program point L1546(line 1546) no Hoare annotation was computed. [2022-07-20 22:47:42,056 INFO L899 garLoopResultBuilder]: For program point L1480(line 1480) no Hoare annotation was computed. [2022-07-20 22:47:42,056 INFO L899 garLoopResultBuilder]: For program point L1084(lines 1084 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,056 INFO L899 garLoopResultBuilder]: For program point L556(lines 556 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,056 INFO L899 garLoopResultBuilder]: For program point L490(lines 490 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,056 INFO L899 garLoopResultBuilder]: For program point L424(lines 424 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,056 INFO L899 garLoopResultBuilder]: For program point L358(lines 358 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,056 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-20 22:47:42,056 INFO L899 garLoopResultBuilder]: For program point L1614-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,056 INFO L899 garLoopResultBuilder]: For program point L1548-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,057 INFO L899 garLoopResultBuilder]: For program point L1482-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,057 INFO L899 garLoopResultBuilder]: For program point L1284(lines 1284 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,057 INFO L899 garLoopResultBuilder]: For program point L1152(lines 1152 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,057 INFO L899 garLoopResultBuilder]: For program point L624(lines 624 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,057 INFO L899 garLoopResultBuilder]: For program point L1615(line 1615) no Hoare annotation was computed. [2022-07-20 22:47:42,057 INFO L899 garLoopResultBuilder]: For program point L1549(line 1549) no Hoare annotation was computed. [2022-07-20 22:47:42,057 INFO L899 garLoopResultBuilder]: For program point L1483(line 1483) no Hoare annotation was computed. [2022-07-20 22:47:42,057 INFO L899 garLoopResultBuilder]: For program point L294(lines 294 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,058 INFO L899 garLoopResultBuilder]: For program point L1021(lines 1021 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,058 INFO L899 garLoopResultBuilder]: For program point L823(lines 823 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,058 INFO L899 garLoopResultBuilder]: For program point L1220(lines 1220 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,058 INFO L899 garLoopResultBuilder]: For program point L1617-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,058 INFO L899 garLoopResultBuilder]: For program point L1551-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,058 INFO L899 garLoopResultBuilder]: For program point L1485-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,058 INFO L899 garLoopResultBuilder]: For program point L1221(lines 1221 1234) no Hoare annotation was computed. [2022-07-20 22:47:42,058 INFO L899 garLoopResultBuilder]: For program point L1221-2(lines 1221 1234) no Hoare annotation was computed. [2022-07-20 22:47:42,059 INFO L899 garLoopResultBuilder]: For program point L957(lines 957 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,059 INFO L899 garLoopResultBuilder]: For program point L1618(line 1618) no Hoare annotation was computed. [2022-07-20 22:47:42,059 INFO L899 garLoopResultBuilder]: For program point L1552(line 1552) no Hoare annotation was computed. [2022-07-20 22:47:42,059 INFO L899 garLoopResultBuilder]: For program point L1486(line 1486) no Hoare annotation was computed. [2022-07-20 22:47:42,059 INFO L899 garLoopResultBuilder]: For program point L1354(lines 1354 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,059 INFO L899 garLoopResultBuilder]: For program point L165(lines 165 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,059 INFO L899 garLoopResultBuilder]: For program point L99(lines 99 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,059 INFO L899 garLoopResultBuilder]: For program point L694(lines 694 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,060 INFO L899 garLoopResultBuilder]: For program point L232(lines 232 1475) no Hoare annotation was computed. [2022-07-20 22:47:42,060 INFO L899 garLoopResultBuilder]: For program point L695(lines 695 709) no Hoare annotation was computed. [2022-07-20 22:47:42,060 INFO L899 garLoopResultBuilder]: For program point L695-2(lines 695 709) no Hoare annotation was computed. [2022-07-20 22:47:42,060 INFO L899 garLoopResultBuilder]: For program point L1620-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,060 INFO L899 garLoopResultBuilder]: For program point L1554-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,060 INFO L899 garLoopResultBuilder]: For program point L1488-1(lines 64 1660) no Hoare annotation was computed. [2022-07-20 22:47:42,064 INFO L356 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:47:42,066 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-20 22:47:42,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 10:47:42 BoogieIcfgContainer [2022-07-20 22:47:42,085 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-20 22:47:42,086 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-20 22:47:42,086 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-20 22:47:42,086 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-20 22:47:42,086 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:46:52" (3/4) ... [2022-07-20 22:47:42,089 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-20 22:47:42,123 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-20 22:47:42,126 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-20 22:47:42,128 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-20 22:47:42,130 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-20 22:47:42,277 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-20 22:47:42,278 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-20 22:47:42,279 INFO L158 Benchmark]: Toolchain (without parser) took 52516.02ms. Allocated memory was 60.8MB in the beginning and 9.4GB in the end (delta: 9.3GB). Free memory was 32.8MB in the beginning and 8.0GB in the end (delta: -7.9GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. [2022-07-20 22:47:42,279 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 60.8MB. Free memory was 41.3MB in the beginning and 41.2MB in the end (delta: 46.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 22:47:42,279 INFO L158 Benchmark]: CACSL2BoogieTranslator took 787.91ms. Allocated memory was 60.8MB in the beginning and 75.5MB in the end (delta: 14.7MB). Free memory was 32.6MB in the beginning and 34.7MB in the end (delta: -2.1MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. [2022-07-20 22:47:42,280 INFO L158 Benchmark]: Boogie Procedure Inliner took 142.93ms. Allocated memory is still 75.5MB. Free memory was 34.7MB in the beginning and 34.7MB in the end (delta: 3.0kB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2022-07-20 22:47:42,280 INFO L158 Benchmark]: Boogie Preprocessor took 135.93ms. Allocated memory is still 75.5MB. Free memory was 34.7MB in the beginning and 34.9MB in the end (delta: -261.8kB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2022-07-20 22:47:42,280 INFO L158 Benchmark]: RCFGBuilder took 1599.20ms. Allocated memory was 75.5MB in the beginning and 136.3MB in the end (delta: 60.8MB). Free memory was 34.7MB in the beginning and 69.3MB in the end (delta: -34.6MB). Peak memory consumption was 37.1MB. Max. memory is 16.1GB. [2022-07-20 22:47:42,281 INFO L158 Benchmark]: TraceAbstraction took 49648.03ms. Allocated memory was 136.3MB in the beginning and 9.4GB in the end (delta: 9.3GB). Free memory was 69.3MB in the beginning and 8.0GB in the end (delta: -7.9GB). Peak memory consumption was 2.2GB. Max. memory is 16.1GB. [2022-07-20 22:47:42,282 INFO L158 Benchmark]: Witness Printer took 192.19ms. Allocated memory is still 9.4GB. Free memory was 8.0GB in the beginning and 8.0GB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-07-20 22:47:42,291 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 60.8MB. Free memory was 41.3MB in the beginning and 41.2MB in the end (delta: 46.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 787.91ms. Allocated memory was 60.8MB in the beginning and 75.5MB in the end (delta: 14.7MB). Free memory was 32.6MB in the beginning and 34.7MB in the end (delta: -2.1MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 142.93ms. Allocated memory is still 75.5MB. Free memory was 34.7MB in the beginning and 34.7MB in the end (delta: 3.0kB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 135.93ms. Allocated memory is still 75.5MB. Free memory was 34.7MB in the beginning and 34.9MB in the end (delta: -261.8kB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. * RCFGBuilder took 1599.20ms. Allocated memory was 75.5MB in the beginning and 136.3MB in the end (delta: 60.8MB). Free memory was 34.7MB in the beginning and 69.3MB in the end (delta: -34.6MB). Peak memory consumption was 37.1MB. Max. memory is 16.1GB. * TraceAbstraction took 49648.03ms. Allocated memory was 136.3MB in the beginning and 9.4GB in the end (delta: 9.3GB). Free memory was 69.3MB in the beginning and 8.0GB in the end (delta: -7.9GB). Peak memory consumption was 2.2GB. Max. memory is 16.1GB. * Witness Printer took 192.19ms. Allocated memory is still 9.4GB. Free memory was 8.0GB in the beginning and 8.0GB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1546]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 302 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 49.6s, OverallIterations: 23, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.8s, AutomataDifference: 19.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 10.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5155 SdHoareTripleChecker+Valid, 14.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5155 mSDsluCounter, 4872 SdHoareTripleChecker+Invalid, 11.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 728 mSDsCounter, 2277 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14177 IncrementalHoareTripleChecker+Invalid, 16454 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2277 mSolverCounterUnsat, 4144 mSDtfsCounter, 14177 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2695 GetRequests, 2650 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63276occurred in iteration=20, InterpolantAutomatonStates: 72, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 9.7s AutomataMinimizationTime, 23 MinimizatonAttempts, 18350 StatesRemovedByMinimization, 22 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 549 NumberOfFragments, 427 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1236 FormulaSimplificationTreeSizeReduction, 5.4s HoareSimplificationTime, 3 FomulaSimplificationsInter, 23438 FormulaSimplificationTreeSizeReductionInter, 5.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.8s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 8340 NumberOfCodeBlocks, 8340 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 8308 ConstructedInterpolants, 0 QuantifiedInterpolants, 14913 SizeOfPredicates, 0 NumberOfNonLiveVariables, 5259 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 32 InterpolantComputations, 23 PerfectInterpolantSequences, 4869/4926 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1662]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: (((((((((((((((((((a25 == a11 && a5 == 1) && a12 == 1) && a3 <= 1) && 1 <= a3) && a11 == a6) && a26 <= 0) || ((((a5 == 1 && a12 == 1) && a26 <= 0) && a6 == 0) && !(a11 == 1))) || ((((a7 <= 0 && a5 == 1) && a12 == 1) && a26 <= 0) && !(a11 == 1))) || (((a5 == 1 && a3 <= 0) && a11 == a6) && a27 == 1)) || (((a5 == 1 && a11 == 1) && a26 == a11) && a27 == 1)) || ((((a5 == 1 && 2 <= a3) && a11 == a6) && a11 == 1) && a27 == 1)) || (((a26 == 1 && a5 == 1) && a12 == 1) && a6 == 0)) || (((a5 == 1 && a3 <= 0) && a27 == 1) && !(a11 == 1))) || ((a26 == 1 && a5 == 1) && !(a11 == 1))) || (((a5 == 1 && 2 <= a3) && a26 <= 0) && a6 == 0)) || (((a5 == 1 && a26 <= 0) && a6 == 0) && a27 == 1)) || (((a26 == 1 && a5 == 1) && a3 <= 1) && a6 == 0)) || (((a5 == 1 && a3 <= 0) && a6 == 0) && a27 == 1)) || (((a5 == 1 && 1 <= a3) && a26 <= 0) && !(a11 == 1))) || ((a26 == 1 && a5 == 1) && a11 == a6) - InvariantResult [Line: 1668]: Loop Invariant Derived loop invariant: (((((((((((((((((((a25 == a11 && a5 == 1) && a12 == 1) && a3 <= 1) && 1 <= a3) && a11 == a6) && a26 <= 0) || ((((a5 == 1 && a12 == 1) && a26 <= 0) && a6 == 0) && !(a11 == 1))) || ((((a7 <= 0 && a5 == 1) && a12 == 1) && a26 <= 0) && !(a11 == 1))) || (((a5 == 1 && a3 <= 0) && a11 == a6) && a27 == 1)) || (((a5 == 1 && a11 == 1) && a26 == a11) && a27 == 1)) || ((((a5 == 1 && 2 <= a3) && a11 == a6) && a11 == 1) && a27 == 1)) || (((a26 == 1 && a5 == 1) && a12 == 1) && a6 == 0)) || (((a5 == 1 && a3 <= 0) && a27 == 1) && !(a11 == 1))) || ((a26 == 1 && a5 == 1) && !(a11 == 1))) || (((a5 == 1 && 2 <= a3) && a26 <= 0) && a6 == 0)) || (((a5 == 1 && a26 <= 0) && a6 == 0) && a27 == 1)) || (((a26 == 1 && a5 == 1) && a3 <= 1) && a6 == 0)) || (((a5 == 1 && a3 <= 0) && a6 == 0) && a27 == 1)) || (((a5 == 1 && 1 <= a3) && a26 <= 0) && !(a11 == 1))) || ((a26 == 1 && a5 == 1) && a11 == a6) RESULT: Ultimate proved your program to be correct! [2022-07-20 22:47:42,346 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE