./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem11_label23.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20ed64ec 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/Problem11_label23.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 3b04a2851ae0aa4ad59240dded892cc8414d46bd ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-25 21:44:58,166 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-25 21:44:58,175 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-25 21:44:58,208 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-25 21:44:58,209 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-25 21:44:58,217 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-25 21:44:58,220 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-25 21:44:58,225 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-25 21:44:58,228 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-25 21:44:58,232 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-25 21:44:58,233 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-25 21:44:58,237 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-25 21:44:58,238 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-25 21:44:58,240 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-25 21:44:58,242 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-25 21:44:58,244 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-25 21:44:58,245 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-25 21:44:58,245 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-25 21:44:58,249 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-25 21:44:58,255 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-25 21:44:58,257 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-25 21:44:58,258 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-25 21:44:58,260 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-25 21:44:58,261 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-25 21:44:58,268 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-25 21:44:58,268 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-25 21:44:58,269 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-25 21:44:58,270 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-25 21:44:58,271 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-25 21:44:58,272 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-25 21:44:58,272 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-25 21:44:58,273 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-25 21:44:58,275 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-25 21:44:58,275 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-25 21:44:58,279 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-25 21:44:58,279 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-25 21:44:58,280 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-25 21:44:58,280 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-25 21:44:58,281 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-25 21:44:58,282 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-25 21:44:58,283 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-25 21:44:58,284 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-25 21:44:58,327 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-25 21:44:58,327 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-25 21:44:58,329 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-25 21:44:58,329 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-25 21:44:58,331 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-25 21:44:58,331 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-25 21:44:58,331 INFO L138 SettingsManager]: * Use SBE=true [2021-08-25 21:44:58,332 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-25 21:44:58,332 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-25 21:44:58,332 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-25 21:44:58,333 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-25 21:44:58,333 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-25 21:44:58,333 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-25 21:44:58,333 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-25 21:44:58,334 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-25 21:44:58,334 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-25 21:44:58,334 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-25 21:44:58,334 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-25 21:44:58,334 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-25 21:44:58,335 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-25 21:44:58,335 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-25 21:44:58,343 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-25 21:44:58,343 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 21:44:58,343 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-25 21:44:58,343 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-25 21:44:58,344 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-25 21:44:58,344 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-25 21:44:58,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-25 21:44:58,344 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-25 21:44:58,344 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-25 21:44:58,344 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b04a2851ae0aa4ad59240dded892cc8414d46bd [2021-08-25 21:44:58,649 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-25 21:44:58,669 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-25 21:44:58,672 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-25 21:44:58,674 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-25 21:44:58,674 INFO L275 PluginConnector]: CDTParser initialized [2021-08-25 21:44:58,676 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem11_label23.c [2021-08-25 21:44:58,742 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3a11564f/a5c43cb83d7f4a8f903b304a02a6d3ba/FLAG1053664cd [2021-08-25 21:44:59,317 INFO L306 CDTParser]: Found 1 translation units. [2021-08-25 21:44:59,319 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label23.c [2021-08-25 21:44:59,334 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3a11564f/a5c43cb83d7f4a8f903b304a02a6d3ba/FLAG1053664cd [2021-08-25 21:44:59,574 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3a11564f/a5c43cb83d7f4a8f903b304a02a6d3ba [2021-08-25 21:44:59,577 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-25 21:44:59,579 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-25 21:44:59,582 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-25 21:44:59,583 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-25 21:44:59,586 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-25 21:44:59,587 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 09:44:59" (1/1) ... [2021-08-25 21:44:59,589 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c902162 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:44:59, skipping insertion in model container [2021-08-25 21:44:59,589 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 09:44:59" (1/1) ... [2021-08-25 21:44:59,595 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-25 21:44:59,648 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-25 21:44:59,891 WARN L228 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/Problem11_label23.c[9364,9377] [2021-08-25 21:45:00,142 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 21:45:00,149 INFO L203 MainTranslator]: Completed pre-run [2021-08-25 21:45:00,180 WARN L228 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/Problem11_label23.c[9364,9377] [2021-08-25 21:45:00,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 21:45:00,289 INFO L208 MainTranslator]: Completed translation [2021-08-25 21:45:00,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:45:00 WrapperNode [2021-08-25 21:45:00,291 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-25 21:45:00,292 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-25 21:45:00,293 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-25 21:45:00,293 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-25 21:45:00,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:45:00" (1/1) ... [2021-08-25 21:45:00,324 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:45:00" (1/1) ... [2021-08-25 21:45:00,425 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-25 21:45:00,426 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-25 21:45:00,426 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-25 21:45:00,427 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-25 21:45:00,434 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:45:00" (1/1) ... [2021-08-25 21:45:00,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:45:00" (1/1) ... [2021-08-25 21:45:00,449 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:45:00" (1/1) ... [2021-08-25 21:45:00,449 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:45:00" (1/1) ... [2021-08-25 21:45:00,517 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:45:00" (1/1) ... [2021-08-25 21:45:00,537 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:45:00" (1/1) ... [2021-08-25 21:45:00,549 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:45:00" (1/1) ... [2021-08-25 21:45:00,565 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-25 21:45:00,567 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-25 21:45:00,567 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-25 21:45:00,567 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-25 21:45:00,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:45:00" (1/1) ... [2021-08-25 21:45:00,576 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 21:45:00,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 21:45:00,606 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) [2021-08-25 21:45:00,632 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 [2021-08-25 21:45:00,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-25 21:45:00,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-25 21:45:00,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-25 21:45:00,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-25 21:45:02,298 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-25 21:45:02,299 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-08-25 21:45:02,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 09:45:02 BoogieIcfgContainer [2021-08-25 21:45:02,302 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-25 21:45:02,303 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-25 21:45:02,304 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-25 21:45:02,306 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-25 21:45:02,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 09:44:59" (1/3) ... [2021-08-25 21:45:02,307 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bad09bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 09:45:02, skipping insertion in model container [2021-08-25 21:45:02,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:45:00" (2/3) ... [2021-08-25 21:45:02,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bad09bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 09:45:02, skipping insertion in model container [2021-08-25 21:45:02,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 09:45:02" (3/3) ... [2021-08-25 21:45:02,310 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label23.c [2021-08-25 21:45:02,315 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-25 21:45:02,315 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-25 21:45:02,376 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-25 21:45:02,382 INFO L339 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, mConcurrency=FINITE_AUTOMATA, 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, mLoopAccelerationTechnique=FAST_UPR [2021-08-25 21:45:02,382 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-25 21:45:02,402 INFO L276 IsEmpty]: Start isEmpty. Operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 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) [2021-08-25 21:45:02,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-08-25 21:45:02,410 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:02,411 INFO L512 BasicCegarLoop]: 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] [2021-08-25 21:45:02,412 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:02,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:02,417 INFO L82 PathProgramCache]: Analyzing trace with hash 962891993, now seen corresponding path program 1 times [2021-08-25 21:45:02,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:02,426 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243409952] [2021-08-25 21:45:02,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:02,427 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:02,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:02,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:45:02,747 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:02,747 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243409952] [2021-08-25 21:45:02,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243409952] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:45:02,748 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:45:02,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 21:45:02,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180717482] [2021-08-25 21:45:02,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:45:02,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:02,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:45:02,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:02,775 INFO L87 Difference]: Start difference. First operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 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 21.666666666666668) internal successors, (65), 2 states have internal predecessors, (65), 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) [2021-08-25 21:45:04,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:04,057 INFO L93 Difference]: Finished difference Result 769 states and 1360 transitions. [2021-08-25 21:45:04,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:45:04,058 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 2 states have internal predecessors, (65), 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 65 [2021-08-25 21:45:04,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:04,069 INFO L225 Difference]: With dead ends: 769 [2021-08-25 21:45:04,069 INFO L226 Difference]: Without dead ends: 422 [2021-08-25 21:45:04,073 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:04,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2021-08-25 21:45:04,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 412. [2021-08-25 21:45:04,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 411 states have (on average 1.5231143552311435) internal successors, (626), 411 states have internal predecessors, (626), 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) [2021-08-25 21:45:04,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 626 transitions. [2021-08-25 21:45:04,138 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 626 transitions. Word has length 65 [2021-08-25 21:45:04,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:04,139 INFO L470 AbstractCegarLoop]: Abstraction has 412 states and 626 transitions. [2021-08-25 21:45:04,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 2 states have internal predecessors, (65), 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) [2021-08-25 21:45:04,139 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 626 transitions. [2021-08-25 21:45:04,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-08-25 21:45:04,143 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:04,143 INFO L512 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:45:04,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-25 21:45:04,144 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:04,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:04,145 INFO L82 PathProgramCache]: Analyzing trace with hash -566112933, now seen corresponding path program 1 times [2021-08-25 21:45:04,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:04,145 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087158520] [2021-08-25 21:45:04,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:04,146 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:04,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:04,273 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:45:04,273 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:04,273 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087158520] [2021-08-25 21:45:04,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087158520] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:45:04,274 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:45:04,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 21:45:04,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157028045] [2021-08-25 21:45:04,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:45:04,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:04,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:45:04,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:04,276 INFO L87 Difference]: Start difference. First operand 412 states and 626 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 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) [2021-08-25 21:45:05,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:05,120 INFO L93 Difference]: Finished difference Result 1194 states and 1821 transitions. [2021-08-25 21:45:05,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:45:05,121 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 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 131 [2021-08-25 21:45:05,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:05,126 INFO L225 Difference]: With dead ends: 1194 [2021-08-25 21:45:05,126 INFO L226 Difference]: Without dead ends: 784 [2021-08-25 21:45:05,131 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:05,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2021-08-25 21:45:05,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 784. [2021-08-25 21:45:05,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 783 states have (on average 1.3742017879948913) internal successors, (1076), 783 states have internal predecessors, (1076), 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) [2021-08-25 21:45:05,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1076 transitions. [2021-08-25 21:45:05,168 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1076 transitions. Word has length 131 [2021-08-25 21:45:05,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:05,169 INFO L470 AbstractCegarLoop]: Abstraction has 784 states and 1076 transitions. [2021-08-25 21:45:05,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 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) [2021-08-25 21:45:05,169 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1076 transitions. [2021-08-25 21:45:05,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-08-25 21:45:05,173 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:05,174 INFO L512 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:45:05,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-25 21:45:05,174 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:05,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:05,175 INFO L82 PathProgramCache]: Analyzing trace with hash 1935044965, now seen corresponding path program 1 times [2021-08-25 21:45:05,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:05,176 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94543671] [2021-08-25 21:45:05,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:05,176 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:05,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:05,305 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:45:05,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:05,306 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94543671] [2021-08-25 21:45:05,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94543671] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:45:05,306 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:45:05,307 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 21:45:05,307 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146694513] [2021-08-25 21:45:05,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:45:05,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:05,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:45:05,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:05,309 INFO L87 Difference]: Start difference. First operand 784 states and 1076 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 2 states have internal predecessors, (135), 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) [2021-08-25 21:45:06,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:06,129 INFO L93 Difference]: Finished difference Result 1936 states and 2599 transitions. [2021-08-25 21:45:06,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:45:06,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 2 states have internal predecessors, (135), 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 135 [2021-08-25 21:45:06,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:06,134 INFO L225 Difference]: With dead ends: 1936 [2021-08-25 21:45:06,134 INFO L226 Difference]: Without dead ends: 1154 [2021-08-25 21:45:06,136 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:06,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1154 states. [2021-08-25 21:45:06,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1154 to 1153. [2021-08-25 21:45:06,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1153 states, 1152 states have (on average 1.2699652777777777) internal successors, (1463), 1152 states have internal predecessors, (1463), 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) [2021-08-25 21:45:06,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 1463 transitions. [2021-08-25 21:45:06,158 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 1463 transitions. Word has length 135 [2021-08-25 21:45:06,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:06,159 INFO L470 AbstractCegarLoop]: Abstraction has 1153 states and 1463 transitions. [2021-08-25 21:45:06,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 2 states have internal predecessors, (135), 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) [2021-08-25 21:45:06,159 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 1463 transitions. [2021-08-25 21:45:06,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-08-25 21:45:06,161 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:06,162 INFO L512 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:45:06,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-25 21:45:06,162 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:06,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:06,163 INFO L82 PathProgramCache]: Analyzing trace with hash -444441444, now seen corresponding path program 1 times [2021-08-25 21:45:06,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:06,163 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006642714] [2021-08-25 21:45:06,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:06,164 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:06,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:06,312 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:45:06,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:06,313 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006642714] [2021-08-25 21:45:06,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006642714] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:45:06,316 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:45:06,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:45:06,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93037865] [2021-08-25 21:45:06,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:45:06,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:06,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:45:06,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:06,320 INFO L87 Difference]: Start difference. First operand 1153 states and 1463 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 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) [2021-08-25 21:45:07,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:07,183 INFO L93 Difference]: Finished difference Result 2679 states and 3481 transitions. [2021-08-25 21:45:07,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:45:07,184 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 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 177 [2021-08-25 21:45:07,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:07,191 INFO L225 Difference]: With dead ends: 2679 [2021-08-25 21:45:07,191 INFO L226 Difference]: Without dead ends: 1712 [2021-08-25 21:45:07,193 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:07,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1712 states. [2021-08-25 21:45:07,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1712 to 1521. [2021-08-25 21:45:07,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1520 states have (on average 1.255921052631579) internal successors, (1909), 1520 states have internal predecessors, (1909), 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) [2021-08-25 21:45:07,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 1909 transitions. [2021-08-25 21:45:07,224 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 1909 transitions. Word has length 177 [2021-08-25 21:45:07,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:07,225 INFO L470 AbstractCegarLoop]: Abstraction has 1521 states and 1909 transitions. [2021-08-25 21:45:07,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 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) [2021-08-25 21:45:07,225 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 1909 transitions. [2021-08-25 21:45:07,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2021-08-25 21:45:07,228 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:07,228 INFO L512 BasicCegarLoop]: 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:45:07,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-25 21:45:07,229 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:07,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:07,230 INFO L82 PathProgramCache]: Analyzing trace with hash 522290920, now seen corresponding path program 1 times [2021-08-25 21:45:07,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:07,230 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17482851] [2021-08-25 21:45:07,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:07,230 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:07,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:07,336 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-08-25 21:45:07,336 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:07,337 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17482851] [2021-08-25 21:45:07,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17482851] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:45:07,337 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:45:07,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:45:07,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645743923] [2021-08-25 21:45:07,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:45:07,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:07,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:45:07,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:07,339 INFO L87 Difference]: Start difference. First operand 1521 states and 1909 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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) [2021-08-25 21:45:08,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:08,339 INFO L93 Difference]: Finished difference Result 3597 states and 4559 transitions. [2021-08-25 21:45:08,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:45:08,340 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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 247 [2021-08-25 21:45:08,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:08,349 INFO L225 Difference]: With dead ends: 3597 [2021-08-25 21:45:08,349 INFO L226 Difference]: Without dead ends: 2078 [2021-08-25 21:45:08,352 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:08,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2078 states. [2021-08-25 21:45:08,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2078 to 1889. [2021-08-25 21:45:08,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1889 states, 1888 states have (on average 1.2473516949152543) internal successors, (2355), 1888 states have internal predecessors, (2355), 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) [2021-08-25 21:45:08,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1889 states to 1889 states and 2355 transitions. [2021-08-25 21:45:08,390 INFO L78 Accepts]: Start accepts. Automaton has 1889 states and 2355 transitions. Word has length 247 [2021-08-25 21:45:08,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:08,392 INFO L470 AbstractCegarLoop]: Abstraction has 1889 states and 2355 transitions. [2021-08-25 21:45:08,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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) [2021-08-25 21:45:08,393 INFO L276 IsEmpty]: Start isEmpty. Operand 1889 states and 2355 transitions. [2021-08-25 21:45:08,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2021-08-25 21:45:08,397 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:08,397 INFO L512 BasicCegarLoop]: 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:45:08,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-25 21:45:08,398 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:08,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:08,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1609653245, now seen corresponding path program 1 times [2021-08-25 21:45:08,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:08,399 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169972308] [2021-08-25 21:45:08,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:08,399 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:08,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:08,550 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 221 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:45:08,551 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:08,551 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169972308] [2021-08-25 21:45:08,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169972308] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:45:08,551 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:45:08,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:45:08,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658808431] [2021-08-25 21:45:08,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:45:08,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:08,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:45:08,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:08,557 INFO L87 Difference]: Start difference. First operand 1889 states and 2355 transitions. Second operand has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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) [2021-08-25 21:45:09,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:09,441 INFO L93 Difference]: Finished difference Result 5075 states and 6326 transitions. [2021-08-25 21:45:09,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:45:09,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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 [2021-08-25 21:45:09,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:09,459 INFO L225 Difference]: With dead ends: 5075 [2021-08-25 21:45:09,459 INFO L226 Difference]: Without dead ends: 3188 [2021-08-25 21:45:09,467 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:09,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3188 states. [2021-08-25 21:45:09,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3188 to 3186. [2021-08-25 21:45:09,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3186 states, 3185 states have (on average 1.2160125588697017) internal successors, (3873), 3185 states have internal predecessors, (3873), 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) [2021-08-25 21:45:09,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3186 states to 3186 states and 3873 transitions. [2021-08-25 21:45:09,531 INFO L78 Accepts]: Start accepts. Automaton has 3186 states and 3873 transitions. Word has length 274 [2021-08-25 21:45:09,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:09,531 INFO L470 AbstractCegarLoop]: Abstraction has 3186 states and 3873 transitions. [2021-08-25 21:45:09,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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) [2021-08-25 21:45:09,532 INFO L276 IsEmpty]: Start isEmpty. Operand 3186 states and 3873 transitions. [2021-08-25 21:45:09,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2021-08-25 21:45:09,536 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:09,536 INFO L512 BasicCegarLoop]: 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:45:09,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-25 21:45:09,537 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:09,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:09,537 INFO L82 PathProgramCache]: Analyzing trace with hash 328502846, now seen corresponding path program 1 times [2021-08-25 21:45:09,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:09,541 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596318743] [2021-08-25 21:45:09,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:09,542 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:09,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:09,735 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 212 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:45:09,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:09,736 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596318743] [2021-08-25 21:45:09,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596318743] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:45:09,736 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:45:09,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:45:09,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002090901] [2021-08-25 21:45:09,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 21:45:09,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:09,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 21:45:09,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 21:45:09,738 INFO L87 Difference]: Start difference. First operand 3186 states and 3873 transitions. Second operand has 4 states, 4 states have (on average 70.0) internal successors, (280), 3 states have internal predecessors, (280), 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) [2021-08-25 21:45:11,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:11,303 INFO L93 Difference]: Finished difference Result 10433 states and 12706 transitions. [2021-08-25 21:45:11,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 21:45:11,304 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 70.0) internal successors, (280), 3 states have internal predecessors, (280), 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 280 [2021-08-25 21:45:11,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:11,331 INFO L225 Difference]: With dead ends: 10433 [2021-08-25 21:45:11,331 INFO L226 Difference]: Without dead ends: 7249 [2021-08-25 21:45:11,337 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 21:45:11,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7249 states. [2021-08-25 21:45:11,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7249 to 7242. [2021-08-25 21:45:11,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7242 states, 7241 states have (on average 1.1959674078165998) internal successors, (8660), 7241 states have internal predecessors, (8660), 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) [2021-08-25 21:45:11,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7242 states to 7242 states and 8660 transitions. [2021-08-25 21:45:11,522 INFO L78 Accepts]: Start accepts. Automaton has 7242 states and 8660 transitions. Word has length 280 [2021-08-25 21:45:11,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:11,523 INFO L470 AbstractCegarLoop]: Abstraction has 7242 states and 8660 transitions. [2021-08-25 21:45:11,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 70.0) internal successors, (280), 3 states have internal predecessors, (280), 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) [2021-08-25 21:45:11,524 INFO L276 IsEmpty]: Start isEmpty. Operand 7242 states and 8660 transitions. [2021-08-25 21:45:11,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2021-08-25 21:45:11,529 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:11,529 INFO L512 BasicCegarLoop]: 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, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:45:11,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-25 21:45:11,530 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:11,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:11,530 INFO L82 PathProgramCache]: Analyzing trace with hash -1580395159, now seen corresponding path program 1 times [2021-08-25 21:45:11,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:11,531 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187496936] [2021-08-25 21:45:11,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:11,532 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:11,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:11,775 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 157 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:45:11,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:11,775 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187496936] [2021-08-25 21:45:11,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187496936] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 21:45:11,776 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [770488251] [2021-08-25 21:45:11,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:11,777 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:45:11,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 21:45:11,781 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) [2021-08-25 21:45:11,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-25 21:45:11,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:11,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-25 21:45:11,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 21:45:13,063 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-08-25 21:45:13,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [770488251] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:45:13,064 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 21:45:13,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-08-25 21:45:13,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424712270] [2021-08-25 21:45:13,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 21:45:13,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:13,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 21:45:13,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-08-25 21:45:13,067 INFO L87 Difference]: Start difference. First operand 7242 states and 8660 transitions. Second operand has 4 states, 4 states have (on average 44.75) internal successors, (179), 3 states have internal predecessors, (179), 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) [2021-08-25 21:45:14,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:14,368 INFO L93 Difference]: Finished difference Result 19470 states and 23084 transitions. [2021-08-25 21:45:14,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 21:45:14,369 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.75) internal successors, (179), 3 states have internal predecessors, (179), 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 283 [2021-08-25 21:45:14,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:14,412 INFO L225 Difference]: With dead ends: 19470 [2021-08-25 21:45:14,412 INFO L226 Difference]: Without dead ends: 12598 [2021-08-25 21:45:14,423 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 46.8ms TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-08-25 21:45:14,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12598 states. [2021-08-25 21:45:14,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12598 to 10010. [2021-08-25 21:45:14,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10010 states, 10009 states have (on average 1.1815366170446597) internal successors, (11826), 10009 states have internal predecessors, (11826), 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) [2021-08-25 21:45:14,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10010 states to 10010 states and 11826 transitions. [2021-08-25 21:45:14,668 INFO L78 Accepts]: Start accepts. Automaton has 10010 states and 11826 transitions. Word has length 283 [2021-08-25 21:45:14,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:14,669 INFO L470 AbstractCegarLoop]: Abstraction has 10010 states and 11826 transitions. [2021-08-25 21:45:14,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.75) internal successors, (179), 3 states have internal predecessors, (179), 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) [2021-08-25 21:45:14,670 INFO L276 IsEmpty]: Start isEmpty. Operand 10010 states and 11826 transitions. [2021-08-25 21:45:14,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2021-08-25 21:45:14,676 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:14,676 INFO L512 BasicCegarLoop]: 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, 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] [2021-08-25 21:45:14,705 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-08-25 21:45:14,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:45:14,897 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:14,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:14,898 INFO L82 PathProgramCache]: Analyzing trace with hash -1984989751, now seen corresponding path program 1 times [2021-08-25 21:45:14,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:14,898 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288969172] [2021-08-25 21:45:14,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:14,898 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:14,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:15,002 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2021-08-25 21:45:15,003 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:15,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288969172] [2021-08-25 21:45:15,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288969172] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:45:15,004 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:45:15,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:45:15,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489576403] [2021-08-25 21:45:15,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:45:15,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:15,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:45:15,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:15,013 INFO L87 Difference]: Start difference. First operand 10010 states and 11826 transitions. Second operand has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 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) [2021-08-25 21:45:15,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:15,847 INFO L93 Difference]: Finished difference Result 19648 states and 23262 transitions. [2021-08-25 21:45:15,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:45:15,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 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 295 [2021-08-25 21:45:15,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:15,866 INFO L225 Difference]: With dead ends: 19648 [2021-08-25 21:45:15,866 INFO L226 Difference]: Without dead ends: 10008 [2021-08-25 21:45:15,878 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:15,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10008 states. [2021-08-25 21:45:16,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10008 to 10008. [2021-08-25 21:45:16,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10008 states, 10007 states have (on average 1.1504946537423804) internal successors, (11513), 10007 states have internal predecessors, (11513), 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) [2021-08-25 21:45:16,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10008 states to 10008 states and 11513 transitions. [2021-08-25 21:45:16,058 INFO L78 Accepts]: Start accepts. Automaton has 10008 states and 11513 transitions. Word has length 295 [2021-08-25 21:45:16,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:16,059 INFO L470 AbstractCegarLoop]: Abstraction has 10008 states and 11513 transitions. [2021-08-25 21:45:16,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 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) [2021-08-25 21:45:16,059 INFO L276 IsEmpty]: Start isEmpty. Operand 10008 states and 11513 transitions. [2021-08-25 21:45:16,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2021-08-25 21:45:16,066 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:16,067 INFO L512 BasicCegarLoop]: 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, 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, 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] [2021-08-25 21:45:16,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-25 21:45:16,067 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:16,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:16,070 INFO L82 PathProgramCache]: Analyzing trace with hash 286412562, now seen corresponding path program 1 times [2021-08-25 21:45:16,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:16,071 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586811842] [2021-08-25 21:45:16,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:16,071 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:16,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:16,218 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 125 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:45:16,219 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:16,219 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586811842] [2021-08-25 21:45:16,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586811842] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 21:45:16,223 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [797464469] [2021-08-25 21:45:16,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:16,224 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:45:16,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 21:45:16,229 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) [2021-08-25 21:45:16,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-25 21:45:16,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:16,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-25 21:45:16,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 21:45:17,798 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 230 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:45:17,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [797464469] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:45:17,799 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 21:45:17,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-08-25 21:45:17,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92860471] [2021-08-25 21:45:17,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:45:17,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:17,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:45:17,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-25 21:45:17,801 INFO L87 Difference]: Start difference. First operand 10008 states and 11513 transitions. Second operand has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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) [2021-08-25 21:45:18,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:18,581 INFO L93 Difference]: Finished difference Result 20579 states and 23715 transitions. [2021-08-25 21:45:18,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:45:18,582 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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 298 [2021-08-25 21:45:18,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:18,601 INFO L225 Difference]: With dead ends: 20579 [2021-08-25 21:45:18,602 INFO L226 Difference]: Without dead ends: 10941 [2021-08-25 21:45:18,613 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 17.0ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-25 21:45:18,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10941 states. [2021-08-25 21:45:18,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10941 to 10934. [2021-08-25 21:45:18,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10934 states, 10933 states have (on average 1.14790085063569) internal successors, (12550), 10933 states have internal predecessors, (12550), 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) [2021-08-25 21:45:18,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10934 states to 10934 states and 12550 transitions. [2021-08-25 21:45:18,775 INFO L78 Accepts]: Start accepts. Automaton has 10934 states and 12550 transitions. Word has length 298 [2021-08-25 21:45:18,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:18,776 INFO L470 AbstractCegarLoop]: Abstraction has 10934 states and 12550 transitions. [2021-08-25 21:45:18,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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) [2021-08-25 21:45:18,777 INFO L276 IsEmpty]: Start isEmpty. Operand 10934 states and 12550 transitions. [2021-08-25 21:45:18,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2021-08-25 21:45:18,783 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:18,783 INFO L512 BasicCegarLoop]: 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, 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, 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] [2021-08-25 21:45:18,813 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-25 21:45:19,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-08-25 21:45:19,013 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:19,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:19,014 INFO L82 PathProgramCache]: Analyzing trace with hash 1382301666, now seen corresponding path program 1 times [2021-08-25 21:45:19,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:19,014 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005023894] [2021-08-25 21:45:19,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:19,014 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:19,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:19,160 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 125 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-08-25 21:45:19,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:19,161 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005023894] [2021-08-25 21:45:19,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005023894] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 21:45:19,161 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [575185039] [2021-08-25 21:45:19,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:19,161 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:45:19,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 21:45:19,165 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) [2021-08-25 21:45:19,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-08-25 21:45:19,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:19,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-25 21:45:19,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 21:45:20,494 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 125 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-08-25 21:45:20,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [575185039] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 21:45:20,495 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-25 21:45:20,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-08-25 21:45:20,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040331798] [2021-08-25 21:45:20,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 21:45:20,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:20,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 21:45:20,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 21:45:20,497 INFO L87 Difference]: Start difference. First operand 10934 states and 12550 transitions. Second operand has 4 states, 4 states have (on average 48.25) internal successors, (193), 3 states have internal predecessors, (193), 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) [2021-08-25 21:45:21,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:21,614 INFO L93 Difference]: Finished difference Result 25372 states and 29134 transitions. [2021-08-25 21:45:21,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 21:45:21,615 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 48.25) internal successors, (193), 3 states have internal predecessors, (193), 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 303 [2021-08-25 21:45:21,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:21,642 INFO L225 Difference]: With dead ends: 25372 [2021-08-25 21:45:21,643 INFO L226 Difference]: Without dead ends: 14808 [2021-08-25 21:45:21,656 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 21:45:21,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14808 states. [2021-08-25 21:45:21,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14808 to 12406. [2021-08-25 21:45:21,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12406 states, 12405 states have (on average 1.1490528012898025) internal successors, (14254), 12405 states have internal predecessors, (14254), 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) [2021-08-25 21:45:21,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12406 states to 12406 states and 14254 transitions. [2021-08-25 21:45:21,823 INFO L78 Accepts]: Start accepts. Automaton has 12406 states and 14254 transitions. Word has length 303 [2021-08-25 21:45:21,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:21,824 INFO L470 AbstractCegarLoop]: Abstraction has 12406 states and 14254 transitions. [2021-08-25 21:45:21,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.25) internal successors, (193), 3 states have internal predecessors, (193), 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) [2021-08-25 21:45:21,824 INFO L276 IsEmpty]: Start isEmpty. Operand 12406 states and 14254 transitions. [2021-08-25 21:45:21,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2021-08-25 21:45:21,834 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:21,835 INFO L512 BasicCegarLoop]: 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, 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, 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] [2021-08-25 21:45:21,862 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-08-25 21:45:22,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:45:22,049 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:22,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:22,049 INFO L82 PathProgramCache]: Analyzing trace with hash -807971748, now seen corresponding path program 1 times [2021-08-25 21:45:22,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:22,049 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267593020] [2021-08-25 21:45:22,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:22,050 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:22,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:22,213 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 55 proven. 70 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-08-25 21:45:22,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:22,214 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267593020] [2021-08-25 21:45:22,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267593020] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 21:45:22,214 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [179517332] [2021-08-25 21:45:22,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:22,214 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:45:22,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 21:45:22,219 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) [2021-08-25 21:45:22,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-08-25 21:45:22,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:22,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-25 21:45:22,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 21:45:23,526 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-08-25 21:45:23,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [179517332] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:45:23,526 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 21:45:23,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-08-25 21:45:23,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440894823] [2021-08-25 21:45:23,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:45:23,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:23,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:45:23,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-25 21:45:23,528 INFO L87 Difference]: Start difference. First operand 12406 states and 14254 transitions. Second operand has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 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) [2021-08-25 21:45:24,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:24,470 INFO L93 Difference]: Finished difference Result 27201 states and 31343 transitions. [2021-08-25 21:45:24,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:45:24,471 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 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 327 [2021-08-25 21:45:24,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:24,498 INFO L225 Difference]: With dead ends: 27201 [2021-08-25 21:45:24,498 INFO L226 Difference]: Without dead ends: 15165 [2021-08-25 21:45:24,512 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 21.1ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-25 21:45:24,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15165 states. [2021-08-25 21:45:24,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15165 to 14061. [2021-08-25 21:45:24,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14061 states, 14060 states have (on average 1.141180654338549) internal successors, (16045), 14060 states have internal predecessors, (16045), 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) [2021-08-25 21:45:24,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14061 states to 14061 states and 16045 transitions. [2021-08-25 21:45:24,704 INFO L78 Accepts]: Start accepts. Automaton has 14061 states and 16045 transitions. Word has length 327 [2021-08-25 21:45:24,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:24,705 INFO L470 AbstractCegarLoop]: Abstraction has 14061 states and 16045 transitions. [2021-08-25 21:45:24,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 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) [2021-08-25 21:45:24,706 INFO L276 IsEmpty]: Start isEmpty. Operand 14061 states and 16045 transitions. [2021-08-25 21:45:24,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2021-08-25 21:45:24,716 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:24,717 INFO L512 BasicCegarLoop]: trace histogram [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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:45:24,745 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-08-25 21:45:24,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:45:24,945 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:24,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:24,945 INFO L82 PathProgramCache]: Analyzing trace with hash 332634922, now seen corresponding path program 1 times [2021-08-25 21:45:24,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:24,945 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485655424] [2021-08-25 21:45:24,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:24,946 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:24,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:25,125 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 281 proven. 27 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2021-08-25 21:45:25,126 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:25,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485655424] [2021-08-25 21:45:25,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485655424] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 21:45:25,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1783829296] [2021-08-25 21:45:25,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:25,126 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:45:25,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 21:45:25,127 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) [2021-08-25 21:45:25,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-08-25 21:45:25,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:25,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-25 21:45:25,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 21:45:27,098 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 362 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2021-08-25 21:45:27,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1783829296] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:45:27,099 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 21:45:27,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-08-25 21:45:27,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753655425] [2021-08-25 21:45:27,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:45:27,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:27,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:45:27,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-25 21:45:27,101 INFO L87 Difference]: Start difference. First operand 14061 states and 16045 transitions. Second operand has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 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) [2021-08-25 21:45:27,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:27,832 INFO L93 Difference]: Finished difference Result 29601 states and 33802 transitions. [2021-08-25 21:45:27,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:45:27,841 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 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 352 [2021-08-25 21:45:27,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:27,863 INFO L225 Difference]: With dead ends: 29601 [2021-08-25 21:45:27,863 INFO L226 Difference]: Without dead ends: 15910 [2021-08-25 21:45:27,875 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 24.1ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-25 21:45:27,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15910 states. [2021-08-25 21:45:28,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15910 to 14803. [2021-08-25 21:45:28,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14803 states, 14802 states have (on average 1.1375489798675855) internal successors, (16838), 14802 states have internal predecessors, (16838), 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) [2021-08-25 21:45:28,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14803 states to 14803 states and 16838 transitions. [2021-08-25 21:45:28,063 INFO L78 Accepts]: Start accepts. Automaton has 14803 states and 16838 transitions. Word has length 352 [2021-08-25 21:45:28,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:28,063 INFO L470 AbstractCegarLoop]: Abstraction has 14803 states and 16838 transitions. [2021-08-25 21:45:28,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 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) [2021-08-25 21:45:28,064 INFO L276 IsEmpty]: Start isEmpty. Operand 14803 states and 16838 transitions. [2021-08-25 21:45:28,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2021-08-25 21:45:28,082 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:28,082 INFO L512 BasicCegarLoop]: trace histogram [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, 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, 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, 3, 3, 3, 3, 3, 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] [2021-08-25 21:45:28,111 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-08-25 21:45:28,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-08-25 21:45:28,297 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:28,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:28,298 INFO L82 PathProgramCache]: Analyzing trace with hash -1737705753, now seen corresponding path program 1 times [2021-08-25 21:45:28,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:28,298 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536267232] [2021-08-25 21:45:28,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:28,298 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:28,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:28,553 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 208 proven. 168 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2021-08-25 21:45:28,553 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:28,554 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536267232] [2021-08-25 21:45:28,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536267232] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 21:45:28,554 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594690983] [2021-08-25 21:45:28,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:28,554 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:45:28,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 21:45:28,561 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) [2021-08-25 21:45:28,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-08-25 21:45:29,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:29,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-25 21:45:29,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 21:45:30,700 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 383 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2021-08-25 21:45:30,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594690983] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:45:30,700 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 21:45:30,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-08-25 21:45:30,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004736494] [2021-08-25 21:45:30,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:45:30,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:30,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:45:30,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-25 21:45:30,702 INFO L87 Difference]: Start difference. First operand 14803 states and 16838 transitions. Second operand has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 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) [2021-08-25 21:45:31,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:31,297 INFO L93 Difference]: Finished difference Result 29606 states and 33670 transitions. [2021-08-25 21:45:31,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:45:31,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 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 373 [2021-08-25 21:45:31,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:31,315 INFO L225 Difference]: With dead ends: 29606 [2021-08-25 21:45:31,315 INFO L226 Difference]: Without dead ends: 14805 [2021-08-25 21:45:31,327 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 373 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 25.1ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-25 21:45:31,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14805 states. [2021-08-25 21:45:31,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14805 to 13699. [2021-08-25 21:45:31,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13699 states, 13698 states have (on average 1.1317710614688277) internal successors, (15503), 13698 states have internal predecessors, (15503), 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) [2021-08-25 21:45:31,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13699 states to 13699 states and 15503 transitions. [2021-08-25 21:45:31,568 INFO L78 Accepts]: Start accepts. Automaton has 13699 states and 15503 transitions. Word has length 373 [2021-08-25 21:45:31,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:31,569 INFO L470 AbstractCegarLoop]: Abstraction has 13699 states and 15503 transitions. [2021-08-25 21:45:31,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 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) [2021-08-25 21:45:31,569 INFO L276 IsEmpty]: Start isEmpty. Operand 13699 states and 15503 transitions. [2021-08-25 21:45:31,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2021-08-25 21:45:31,582 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:31,583 INFO L512 BasicCegarLoop]: trace histogram [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, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-08-25 21:45:31,613 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-08-25 21:45:31,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:45:31,809 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:31,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:31,810 INFO L82 PathProgramCache]: Analyzing trace with hash 1768080256, now seen corresponding path program 1 times [2021-08-25 21:45:31,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:31,810 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916387189] [2021-08-25 21:45:31,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:31,810 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:31,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:31,943 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 389 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2021-08-25 21:45:31,944 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:31,944 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916387189] [2021-08-25 21:45:31,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916387189] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:45:31,944 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:45:31,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:45:31,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88724114] [2021-08-25 21:45:31,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:45:31,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:31,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:45:31,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:31,946 INFO L87 Difference]: Start difference. First operand 13699 states and 15503 transitions. Second operand has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 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) [2021-08-25 21:45:32,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:32,740 INFO L93 Difference]: Finished difference Result 26844 states and 30408 transitions. [2021-08-25 21:45:32,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:45:32,741 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 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 396 [2021-08-25 21:45:32,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:32,755 INFO L225 Difference]: With dead ends: 26844 [2021-08-25 21:45:32,755 INFO L226 Difference]: Without dead ends: 13331 [2021-08-25 21:45:32,764 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:32,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13331 states. [2021-08-25 21:45:32,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13331 to 13326. [2021-08-25 21:45:32,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13326 states, 13325 states have (on average 1.1079174484052532) internal successors, (14763), 13325 states have internal predecessors, (14763), 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) [2021-08-25 21:45:32,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13326 states to 13326 states and 14763 transitions. [2021-08-25 21:45:32,931 INFO L78 Accepts]: Start accepts. Automaton has 13326 states and 14763 transitions. Word has length 396 [2021-08-25 21:45:32,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:32,931 INFO L470 AbstractCegarLoop]: Abstraction has 13326 states and 14763 transitions. [2021-08-25 21:45:32,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 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) [2021-08-25 21:45:32,931 INFO L276 IsEmpty]: Start isEmpty. Operand 13326 states and 14763 transitions. [2021-08-25 21:45:32,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2021-08-25 21:45:32,944 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:32,945 INFO L512 BasicCegarLoop]: trace histogram [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, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-08-25 21:45:32,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-08-25 21:45:32,945 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:32,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:32,946 INFO L82 PathProgramCache]: Analyzing trace with hash 1305312854, now seen corresponding path program 1 times [2021-08-25 21:45:32,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:32,946 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900274726] [2021-08-25 21:45:32,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:32,946 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:33,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:33,136 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 396 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2021-08-25 21:45:33,137 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:33,137 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900274726] [2021-08-25 21:45:33,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900274726] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:45:33,137 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:45:33,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:45:33,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169893151] [2021-08-25 21:45:33,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:45:33,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:33,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:45:33,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:33,139 INFO L87 Difference]: Start difference. First operand 13326 states and 14763 transitions. Second operand has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 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) [2021-08-25 21:45:33,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:33,871 INFO L93 Difference]: Finished difference Result 26472 states and 29366 transitions. [2021-08-25 21:45:33,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:45:33,872 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 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 401 [2021-08-25 21:45:33,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:33,885 INFO L225 Difference]: With dead ends: 26472 [2021-08-25 21:45:33,885 INFO L226 Difference]: Without dead ends: 13516 [2021-08-25 21:45:33,894 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:33,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13516 states. [2021-08-25 21:45:34,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13516 to 13512. [2021-08-25 21:45:34,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13512 states, 13511 states have (on average 1.107393975279402) internal successors, (14962), 13511 states have internal predecessors, (14962), 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) [2021-08-25 21:45:34,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13512 states to 13512 states and 14962 transitions. [2021-08-25 21:45:34,049 INFO L78 Accepts]: Start accepts. Automaton has 13512 states and 14962 transitions. Word has length 401 [2021-08-25 21:45:34,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:34,050 INFO L470 AbstractCegarLoop]: Abstraction has 13512 states and 14962 transitions. [2021-08-25 21:45:34,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 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) [2021-08-25 21:45:34,050 INFO L276 IsEmpty]: Start isEmpty. Operand 13512 states and 14962 transitions. [2021-08-25 21:45:34,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2021-08-25 21:45:34,063 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:34,064 INFO L512 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:45:34,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-08-25 21:45:34,064 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:34,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:34,065 INFO L82 PathProgramCache]: Analyzing trace with hash -764587049, now seen corresponding path program 1 times [2021-08-25 21:45:34,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:34,065 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230695805] [2021-08-25 21:45:34,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:34,065 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:34,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:34,223 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 188 proven. 211 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-08-25 21:45:34,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:34,223 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230695805] [2021-08-25 21:45:34,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230695805] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 21:45:34,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1540127554] [2021-08-25 21:45:34,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:34,224 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:45:34,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 21:45:34,225 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) [2021-08-25 21:45:34,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-08-25 21:45:35,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:35,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-25 21:45:35,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 21:45:36,626 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 399 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-08-25 21:45:36,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1540127554] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:45:36,626 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 21:45:36,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-08-25 21:45:36,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420842655] [2021-08-25 21:45:36,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:45:36,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:36,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:45:36,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-25 21:45:36,628 INFO L87 Difference]: Start difference. First operand 13512 states and 14962 transitions. Second operand has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 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) [2021-08-25 21:45:37,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:37,285 INFO L93 Difference]: Finished difference Result 30180 states and 33558 transitions. [2021-08-25 21:45:37,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:45:37,286 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 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 410 [2021-08-25 21:45:37,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:37,301 INFO L225 Difference]: With dead ends: 30180 [2021-08-25 21:45:37,302 INFO L226 Difference]: Without dead ends: 17038 [2021-08-25 21:45:37,311 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 409 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 12.8ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-25 21:45:37,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17038 states. [2021-08-25 21:45:37,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17038 to 15737. [2021-08-25 21:45:37,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15737 states, 15736 states have (on average 1.1101931875953228) internal successors, (17470), 15736 states have internal predecessors, (17470), 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) [2021-08-25 21:45:37,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15737 states to 15737 states and 17470 transitions. [2021-08-25 21:45:37,470 INFO L78 Accepts]: Start accepts. Automaton has 15737 states and 17470 transitions. Word has length 410 [2021-08-25 21:45:37,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:37,470 INFO L470 AbstractCegarLoop]: Abstraction has 15737 states and 17470 transitions. [2021-08-25 21:45:37,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 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) [2021-08-25 21:45:37,471 INFO L276 IsEmpty]: Start isEmpty. Operand 15737 states and 17470 transitions. [2021-08-25 21:45:37,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2021-08-25 21:45:37,483 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:37,483 INFO L512 BasicCegarLoop]: trace histogram [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, 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, 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, 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] [2021-08-25 21:45:37,507 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-08-25 21:45:37,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:45:37,693 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:37,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:37,693 INFO L82 PathProgramCache]: Analyzing trace with hash -1745485911, now seen corresponding path program 1 times [2021-08-25 21:45:37,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:37,694 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751911434] [2021-08-25 21:45:37,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:37,694 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:37,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:37,818 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 452 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-08-25 21:45:37,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:37,818 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751911434] [2021-08-25 21:45:37,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751911434] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:45:37,819 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:45:37,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:45:37,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977793540] [2021-08-25 21:45:37,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:45:37,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:37,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:45:37,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:37,821 INFO L87 Difference]: Start difference. First operand 15737 states and 17470 transitions. Second operand has 3 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 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) [2021-08-25 21:45:38,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:38,678 INFO L93 Difference]: Finished difference Result 34238 states and 38003 transitions. [2021-08-25 21:45:38,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:45:38,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 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 420 [2021-08-25 21:45:38,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:38,761 INFO L225 Difference]: With dead ends: 34238 [2021-08-25 21:45:38,761 INFO L226 Difference]: Without dead ends: 18871 [2021-08-25 21:45:38,767 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:38,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18871 states. [2021-08-25 21:45:38,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18871 to 18307. [2021-08-25 21:45:38,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18307 states, 18306 states have (on average 1.101933792199279) internal successors, (20172), 18306 states have internal predecessors, (20172), 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) [2021-08-25 21:45:38,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18307 states to 18307 states and 20172 transitions. [2021-08-25 21:45:38,931 INFO L78 Accepts]: Start accepts. Automaton has 18307 states and 20172 transitions. Word has length 420 [2021-08-25 21:45:38,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:38,931 INFO L470 AbstractCegarLoop]: Abstraction has 18307 states and 20172 transitions. [2021-08-25 21:45:38,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 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) [2021-08-25 21:45:38,931 INFO L276 IsEmpty]: Start isEmpty. Operand 18307 states and 20172 transitions. [2021-08-25 21:45:38,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2021-08-25 21:45:38,943 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:38,943 INFO L512 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:45:38,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-08-25 21:45:38,944 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:38,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:38,944 INFO L82 PathProgramCache]: Analyzing trace with hash 417403016, now seen corresponding path program 1 times [2021-08-25 21:45:38,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:38,945 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461577305] [2021-08-25 21:45:38,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:38,945 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:38,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:39,083 INFO L134 CoverageAnalysis]: Checked inductivity of 533 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-08-25 21:45:39,084 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:39,084 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461577305] [2021-08-25 21:45:39,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461577305] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:45:39,084 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:45:39,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:45:39,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516096637] [2021-08-25 21:45:39,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 21:45:39,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:39,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 21:45:39,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 21:45:39,087 INFO L87 Difference]: Start difference. First operand 18307 states and 20172 transitions. Second operand has 4 states, 4 states have (on average 79.75) internal successors, (319), 3 states have internal predecessors, (319), 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) [2021-08-25 21:45:40,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:40,200 INFO L93 Difference]: Finished difference Result 44556 states and 49045 transitions. [2021-08-25 21:45:40,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 21:45:40,200 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 79.75) internal successors, (319), 3 states have internal predecessors, (319), 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 429 [2021-08-25 21:45:40,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:40,228 INFO L225 Difference]: With dead ends: 44556 [2021-08-25 21:45:40,229 INFO L226 Difference]: Without dead ends: 26619 [2021-08-25 21:45:40,307 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 21:45:40,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26619 states. [2021-08-25 21:45:40,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26619 to 24023. [2021-08-25 21:45:40,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24023 states, 24022 states have (on average 1.0986179335609025) internal successors, (26391), 24022 states have internal predecessors, (26391), 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) [2021-08-25 21:45:40,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24023 states to 24023 states and 26391 transitions. [2021-08-25 21:45:40,574 INFO L78 Accepts]: Start accepts. Automaton has 24023 states and 26391 transitions. Word has length 429 [2021-08-25 21:45:40,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:40,574 INFO L470 AbstractCegarLoop]: Abstraction has 24023 states and 26391 transitions. [2021-08-25 21:45:40,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.75) internal successors, (319), 3 states have internal predecessors, (319), 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) [2021-08-25 21:45:40,574 INFO L276 IsEmpty]: Start isEmpty. Operand 24023 states and 26391 transitions. [2021-08-25 21:45:40,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2021-08-25 21:45:40,584 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:40,584 INFO L512 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:45:40,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-08-25 21:45:40,584 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:40,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:40,585 INFO L82 PathProgramCache]: Analyzing trace with hash 890840300, now seen corresponding path program 1 times [2021-08-25 21:45:40,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:40,585 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078940721] [2021-08-25 21:45:40,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:40,585 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:40,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:40,729 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 188 proven. 229 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2021-08-25 21:45:40,730 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:40,730 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078940721] [2021-08-25 21:45:40,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078940721] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 21:45:40,730 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [417197851] [2021-08-25 21:45:40,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:40,730 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:45:40,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 21:45:40,733 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) [2021-08-25 21:45:40,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-08-25 21:45:41,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:41,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 13 conjunts are in the unsatisfiable core [2021-08-25 21:45:41,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 21:45:45,451 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 293 proven. 230 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:45:45,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [417197851] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 21:45:45,452 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-25 21:45:45,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2021-08-25 21:45:45,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630147040] [2021-08-25 21:45:45,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-25 21:45:45,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:45,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-25 21:45:45,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-08-25 21:45:45,454 INFO L87 Difference]: Start difference. First operand 24023 states and 26391 transitions. Second operand has 9 states, 9 states have (on average 84.22222222222223) internal successors, (758), 8 states have internal predecessors, (758), 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) [2021-08-25 21:45:49,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:49,548 INFO L93 Difference]: Finished difference Result 63978 states and 70135 transitions. [2021-08-25 21:45:49,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-25 21:45:49,549 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 84.22222222222223) internal successors, (758), 8 states have internal predecessors, (758), 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 432 [2021-08-25 21:45:49,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:49,599 INFO L225 Difference]: With dead ends: 63978 [2021-08-25 21:45:49,600 INFO L226 Difference]: Without dead ends: 40325 [2021-08-25 21:45:49,621 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 428 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 165.4ms TimeCoverageRelationStatistics Valid=127, Invalid=293, Unknown=0, NotChecked=0, Total=420 [2021-08-25 21:45:49,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40325 states. [2021-08-25 21:45:49,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40325 to 32478. [2021-08-25 21:45:49,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32478 states, 32477 states have (on average 1.0948671367429257) internal successors, (35558), 32477 states have internal predecessors, (35558), 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) [2021-08-25 21:45:50,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32478 states to 32478 states and 35558 transitions. [2021-08-25 21:45:50,030 INFO L78 Accepts]: Start accepts. Automaton has 32478 states and 35558 transitions. Word has length 432 [2021-08-25 21:45:50,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:50,031 INFO L470 AbstractCegarLoop]: Abstraction has 32478 states and 35558 transitions. [2021-08-25 21:45:50,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 84.22222222222223) internal successors, (758), 8 states have internal predecessors, (758), 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) [2021-08-25 21:45:50,031 INFO L276 IsEmpty]: Start isEmpty. Operand 32478 states and 35558 transitions. [2021-08-25 21:45:50,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2021-08-25 21:45:50,045 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:50,045 INFO L512 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:45:50,071 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-08-25 21:45:50,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:45:50,257 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:50,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:50,258 INFO L82 PathProgramCache]: Analyzing trace with hash -482780604, now seen corresponding path program 1 times [2021-08-25 21:45:50,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:50,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742896910] [2021-08-25 21:45:50,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:50,258 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:50,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:50,503 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 525 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:45:50,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:50,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742896910] [2021-08-25 21:45:50,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742896910] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 21:45:50,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2011233082] [2021-08-25 21:45:50,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:50,503 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:45:50,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 21:45:50,504 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) [2021-08-25 21:45:50,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-08-25 21:45:52,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:52,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 605 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-25 21:45:52,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 21:45:53,962 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 426 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-08-25 21:45:53,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2011233082] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:45:53,963 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 21:45:53,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2021-08-25 21:45:53,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765231177] [2021-08-25 21:45:53,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:45:53,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:53,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:45:53,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-08-25 21:45:53,965 INFO L87 Difference]: Start difference. First operand 32478 states and 35558 transitions. Second operand has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 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) [2021-08-25 21:45:54,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:54,809 INFO L93 Difference]: Finished difference Result 63299 states and 69371 transitions. [2021-08-25 21:45:54,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:45:54,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 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 448 [2021-08-25 21:45:54,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:54,841 INFO L225 Difference]: With dead ends: 63299 [2021-08-25 21:45:54,841 INFO L226 Difference]: Without dead ends: 32849 [2021-08-25 21:45:54,857 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 447 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 45.3ms TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-08-25 21:45:54,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32849 states. [2021-08-25 21:45:55,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32849 to 32846. [2021-08-25 21:45:55,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32846 states, 32845 states have (on average 1.093438879585934) internal successors, (35914), 32845 states have internal predecessors, (35914), 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) [2021-08-25 21:45:55,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32846 states to 32846 states and 35914 transitions. [2021-08-25 21:45:55,167 INFO L78 Accepts]: Start accepts. Automaton has 32846 states and 35914 transitions. Word has length 448 [2021-08-25 21:45:55,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:55,167 INFO L470 AbstractCegarLoop]: Abstraction has 32846 states and 35914 transitions. [2021-08-25 21:45:55,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 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) [2021-08-25 21:45:55,167 INFO L276 IsEmpty]: Start isEmpty. Operand 32846 states and 35914 transitions. [2021-08-25 21:45:55,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2021-08-25 21:45:55,182 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:55,183 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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] [2021-08-25 21:45:55,208 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-08-25 21:45:55,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:45:55,396 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:55,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:55,397 INFO L82 PathProgramCache]: Analyzing trace with hash 949033026, now seen corresponding path program 1 times [2021-08-25 21:45:55,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:55,397 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239230684] [2021-08-25 21:45:55,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:55,398 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:55,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:55,550 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 673 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2021-08-25 21:45:55,551 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:55,551 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239230684] [2021-08-25 21:45:55,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239230684] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:45:55,551 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:45:55,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-25 21:45:55,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821457823] [2021-08-25 21:45:55,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 21:45:55,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:55,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 21:45:55,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 21:45:55,553 INFO L87 Difference]: Start difference. First operand 32846 states and 35914 transitions. Second operand has 4 states, 4 states have (on average 90.25) internal successors, (361), 4 states have internal predecessors, (361), 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) [2021-08-25 21:45:56,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:56,555 INFO L93 Difference]: Finished difference Result 65688 states and 71873 transitions. [2021-08-25 21:45:56,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 21:45:56,557 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 90.25) internal successors, (361), 4 states have internal predecessors, (361), 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 449 [2021-08-25 21:45:56,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:56,594 INFO L225 Difference]: With dead ends: 65688 [2021-08-25 21:45:56,594 INFO L226 Difference]: Without dead ends: 34318 [2021-08-25 21:45:56,614 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 21:45:56,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34318 states. [2021-08-25 21:45:56,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34318 to 31558. [2021-08-25 21:45:56,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31558 states, 31557 states have (on average 1.0883163798840194) internal successors, (34344), 31557 states have internal predecessors, (34344), 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) [2021-08-25 21:45:57,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31558 states to 31558 states and 34344 transitions. [2021-08-25 21:45:57,016 INFO L78 Accepts]: Start accepts. Automaton has 31558 states and 34344 transitions. Word has length 449 [2021-08-25 21:45:57,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:57,016 INFO L470 AbstractCegarLoop]: Abstraction has 31558 states and 34344 transitions. [2021-08-25 21:45:57,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 90.25) internal successors, (361), 4 states have internal predecessors, (361), 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) [2021-08-25 21:45:57,017 INFO L276 IsEmpty]: Start isEmpty. Operand 31558 states and 34344 transitions. [2021-08-25 21:45:57,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2021-08-25 21:45:57,037 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:57,037 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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] [2021-08-25 21:45:57,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-08-25 21:45:57,038 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:57,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:57,038 INFO L82 PathProgramCache]: Analyzing trace with hash -78633666, now seen corresponding path program 1 times [2021-08-25 21:45:57,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:57,039 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629200783] [2021-08-25 21:45:57,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:57,039 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:57,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:57,194 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 577 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2021-08-25 21:45:57,194 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:57,194 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629200783] [2021-08-25 21:45:57,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629200783] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:45:57,195 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:45:57,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:45:57,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887929960] [2021-08-25 21:45:57,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:45:57,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:57,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:45:57,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:57,196 INFO L87 Difference]: Start difference. First operand 31558 states and 34344 transitions. Second operand has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 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) [2021-08-25 21:45:57,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:57,944 INFO L93 Difference]: Finished difference Result 61835 states and 67397 transitions. [2021-08-25 21:45:57,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:45:57,945 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 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 526 [2021-08-25 21:45:57,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:57,981 INFO L225 Difference]: With dead ends: 61835 [2021-08-25 21:45:57,981 INFO L226 Difference]: Without dead ends: 32305 [2021-08-25 21:45:58,000 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:58,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32305 states. [2021-08-25 21:45:58,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32305 to 31926. [2021-08-25 21:45:58,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31926 states, 31925 states have (on average 1.0868598277212216) internal successors, (34698), 31925 states have internal predecessors, (34698), 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) [2021-08-25 21:45:58,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31926 states to 31926 states and 34698 transitions. [2021-08-25 21:45:58,508 INFO L78 Accepts]: Start accepts. Automaton has 31926 states and 34698 transitions. Word has length 526 [2021-08-25 21:45:58,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:58,509 INFO L470 AbstractCegarLoop]: Abstraction has 31926 states and 34698 transitions. [2021-08-25 21:45:58,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 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) [2021-08-25 21:45:58,509 INFO L276 IsEmpty]: Start isEmpty. Operand 31926 states and 34698 transitions. [2021-08-25 21:45:58,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2021-08-25 21:45:58,524 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:58,524 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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] [2021-08-25 21:45:58,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-08-25 21:45:58,524 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:58,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:58,525 INFO L82 PathProgramCache]: Analyzing trace with hash 1235514717, now seen corresponding path program 1 times [2021-08-25 21:45:58,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:58,525 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004141163] [2021-08-25 21:45:58,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:58,525 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:58,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:58,929 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 574 proven. 3 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2021-08-25 21:45:58,930 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:58,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004141163] [2021-08-25 21:45:58,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004141163] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 21:45:58,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1467014568] [2021-08-25 21:45:58,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:58,931 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:45:58,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 21:45:58,932 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-25 21:45:58,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-08-25 21:46:00,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:46:00,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 709 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-25 21:46:00,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 21:46:02,359 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 577 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2021-08-25 21:46:02,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1467014568] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:46:02,359 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 21:46:02,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2021-08-25 21:46:02,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963752279] [2021-08-25 21:46:02,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 21:46:02,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:46:02,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 21:46:02,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-08-25 21:46:02,361 INFO L87 Difference]: Start difference. First operand 31926 states and 34698 transitions. Second operand has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 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) [2021-08-25 21:46:03,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:46:03,418 INFO L93 Difference]: Finished difference Result 64391 states and 69994 transitions. [2021-08-25 21:46:03,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 21:46:03,418 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 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 527 [2021-08-25 21:46:03,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:46:03,453 INFO L225 Difference]: With dead ends: 64391 [2021-08-25 21:46:03,453 INFO L226 Difference]: Without dead ends: 32651 [2021-08-25 21:46:03,470 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 531 GetRequests, 525 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 51.0ms TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-08-25 21:46:03,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32651 states. [2021-08-25 21:46:03,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32651 to 29707. [2021-08-25 21:46:03,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29707 states, 29706 states have (on average 1.0816333400659799) internal successors, (32131), 29706 states have internal predecessors, (32131), 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) [2021-08-25 21:46:03,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29707 states to 29707 states and 32131 transitions. [2021-08-25 21:46:03,756 INFO L78 Accepts]: Start accepts. Automaton has 29707 states and 32131 transitions. Word has length 527 [2021-08-25 21:46:03,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:46:03,756 INFO L470 AbstractCegarLoop]: Abstraction has 29707 states and 32131 transitions. [2021-08-25 21:46:03,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 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) [2021-08-25 21:46:03,756 INFO L276 IsEmpty]: Start isEmpty. Operand 29707 states and 32131 transitions. [2021-08-25 21:46:03,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 555 [2021-08-25 21:46:03,772 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:46:03,772 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:46:03,794 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-08-25 21:46:03,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-08-25 21:46:03,974 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:46:03,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:46:03,974 INFO L82 PathProgramCache]: Analyzing trace with hash 200352003, now seen corresponding path program 1 times [2021-08-25 21:46:03,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:46:03,974 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481070106] [2021-08-25 21:46:03,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:46:03,974 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:46:04,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:46:04,142 INFO L134 CoverageAnalysis]: Checked inductivity of 928 backedges. 251 proven. 0 refuted. 0 times theorem prover too weak. 677 trivial. 0 not checked. [2021-08-25 21:46:04,142 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:46:04,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481070106] [2021-08-25 21:46:04,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481070106] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:46:04,142 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:46:04,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:46:04,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277447673] [2021-08-25 21:46:04,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:46:04,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:46:04,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:46:04,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:46:04,144 INFO L87 Difference]: Start difference. First operand 29707 states and 32131 transitions. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 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) [2021-08-25 21:46:05,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:46:05,036 INFO L93 Difference]: Finished difference Result 62921 states and 68063 transitions. [2021-08-25 21:46:05,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:46:05,037 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 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 554 [2021-08-25 21:46:05,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:46:05,037 INFO L225 Difference]: With dead ends: 62921 [2021-08-25 21:46:05,037 INFO L226 Difference]: Without dead ends: 0 [2021-08-25 21:46:05,059 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:46:05,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-25 21:46:05,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-25 21:46:05,060 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) [2021-08-25 21:46:05,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-25 21:46:05,060 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 554 [2021-08-25 21:46:05,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:46:05,060 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-25 21:46:05,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 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) [2021-08-25 21:46:05,061 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-25 21:46:05,061 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-25 21:46:05,063 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-25 21:46:05,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-08-25 21:46:05,065 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-25 21:46:05,071 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 21:46:05,945 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 21:46:06,701 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 21:46:09,242 INFO L857 garLoopResultBuilder]: For program point L498(lines 498 509) no Hoare annotation was computed. [2021-08-25 21:46:09,242 INFO L857 garLoopResultBuilder]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,242 INFO L857 garLoopResultBuilder]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2021-08-25 21:46:09,242 INFO L857 garLoopResultBuilder]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,242 INFO L857 garLoopResultBuilder]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,242 INFO L857 garLoopResultBuilder]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,242 INFO L857 garLoopResultBuilder]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,242 INFO L857 garLoopResultBuilder]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,242 INFO L857 garLoopResultBuilder]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,242 INFO L857 garLoopResultBuilder]: For program point L169(line 169) no Hoare annotation was computed. [2021-08-25 21:46:09,242 INFO L857 garLoopResultBuilder]: For program point L103(line 103) no Hoare annotation was computed. [2021-08-25 21:46:09,242 INFO L857 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2021-08-25 21:46:09,243 INFO L857 garLoopResultBuilder]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,243 INFO L857 garLoopResultBuilder]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,243 INFO L857 garLoopResultBuilder]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,243 INFO L857 garLoopResultBuilder]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,243 INFO L857 garLoopResultBuilder]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,243 INFO L857 garLoopResultBuilder]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,243 INFO L857 garLoopResultBuilder]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,243 INFO L857 garLoopResultBuilder]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,243 INFO L857 garLoopResultBuilder]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,243 INFO L857 garLoopResultBuilder]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,243 INFO L857 garLoopResultBuilder]: For program point L172(line 172) no Hoare annotation was computed. [2021-08-25 21:46:09,243 INFO L857 garLoopResultBuilder]: For program point L106(line 106) no Hoare annotation was computed. [2021-08-25 21:46:09,243 INFO L857 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2021-08-25 21:46:09,243 INFO L857 garLoopResultBuilder]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,243 INFO L857 garLoopResultBuilder]: For program point L768(lines 768 778) no Hoare annotation was computed. [2021-08-25 21:46:09,243 INFO L857 garLoopResultBuilder]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2021-08-25 21:46:09,243 INFO L857 garLoopResultBuilder]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,243 INFO L857 garLoopResultBuilder]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,243 INFO L857 garLoopResultBuilder]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,243 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,243 INFO L857 garLoopResultBuilder]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,243 INFO L857 garLoopResultBuilder]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,244 INFO L857 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-08-25 21:46:09,244 INFO L857 garLoopResultBuilder]: For program point L109(line 109) no Hoare annotation was computed. [2021-08-25 21:46:09,244 INFO L857 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2021-08-25 21:46:09,244 INFO L857 garLoopResultBuilder]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,244 INFO L857 garLoopResultBuilder]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,244 INFO L857 garLoopResultBuilder]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,244 INFO L853 garLoopResultBuilder]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse19 (+ ~a23~0 43)) (.cse9 (= ~a4~0 1))) (let ((.cse5 (<= 203 ~a29~0)) (.cse14 (<= ~a29~0 140)) (.cse0 (<= 0 (+ ~a23~0 599772))) (.cse11 (or (not (= 3 ULTIMATE.start_calculate_output_~input)) (< 140 ~a29~0) (< 0 .cse19) .cse9)) (.cse7 (not .cse9)) (.cse8 (<= ~a25~0 10)) (.cse10 (= ~a25~0 12)) (.cse18 (<= ~a4~0 0)) (.cse16 (= ~a25~0 10)) (.cse12 (= ~a25~0 13)) (.cse6 (<= .cse19 0)) (.cse13 (<= ~a29~0 245)) (.cse15 (<= 130 ~a29~0)) (.cse1 (= ~a25~0 11)) (.cse17 (<= 165 ~a23~0)) (.cse2 (= ~a3~0 1)) (.cse3 (<= ~a23~0 312)) (.cse4 (= ~a8~0 15))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse0 .cse1 .cse2 .cse7 .cse4) (and .cse8 .cse2 .cse9 .cse4) (and .cse10 .cse0 .cse11 .cse2 .cse3 .cse4) (and .cse12 .cse13 .cse2 .cse9 .cse4 .cse5) (and .cse14 .cse1 .cse2 .cse7 .cse3 .cse4) (and .cse0 .cse1 .cse2 .cse9 .cse4 .cse15) (and .cse0 .cse14 .cse2 .cse3 .cse4 .cse16) (and .cse6 .cse10 .cse11 .cse2 .cse7 .cse4) (and .cse6 .cse0 .cse8 .cse2 .cse4) (and .cse10 .cse2 .cse9 (<= 312 ~a23~0) .cse4 .cse15) (and .cse12 .cse17 .cse2 .cse9 .cse4) (and .cse14 .cse2 .cse3 (<= ~a25~0 9) .cse4) (and .cse0 .cse14 .cse2 .cse4 .cse18 .cse16) (and .cse12 .cse0 .cse2 .cse7 .cse3 .cse4) (and .cse10 .cse11 .cse2 .cse4 .cse18) (and (<= 260 ~a29~0) .cse1 .cse2 .cse7 .cse3 .cse4) (and .cse1 (<= ~a29~0 274) .cse2 .cse9 .cse4 .cse15) (and .cse6 .cse8 .cse9) (and .cse6 .cse8 (<= 10250 ~a29~0) .cse2 .cse4) (and .cse10 (< 371191 ~a23~0) .cse2 .cse9 .cse4) (and (<= 0 (+ (div (+ (- 28690) (* ~a29~0 (- 1))) 5) 49)) .cse2 .cse4 .cse18 .cse16) (and .cse12 .cse6 .cse13 .cse2 .cse9 .cse4 .cse15) (and .cse1 .cse17 .cse2 .cse9 .cse3 .cse4)))) [2021-08-25 21:46:09,244 INFO L857 garLoopResultBuilder]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,244 INFO L857 garLoopResultBuilder]: For program point L705(lines 705 715) no Hoare annotation was computed. [2021-08-25 21:46:09,244 INFO L857 garLoopResultBuilder]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2021-08-25 21:46:09,244 INFO L857 garLoopResultBuilder]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,244 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,244 INFO L857 garLoopResultBuilder]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,244 INFO L857 garLoopResultBuilder]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,244 INFO L857 garLoopResultBuilder]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,244 INFO L857 garLoopResultBuilder]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,244 INFO L857 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2021-08-25 21:46:09,245 INFO L857 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-08-25 21:46:09,245 INFO L857 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2021-08-25 21:46:09,245 INFO L860 garLoopResultBuilder]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2021-08-25 21:46:09,245 INFO L857 garLoopResultBuilder]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,245 INFO L857 garLoopResultBuilder]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,245 INFO L857 garLoopResultBuilder]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,245 INFO L857 garLoopResultBuilder]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,245 INFO L857 garLoopResultBuilder]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,245 INFO L857 garLoopResultBuilder]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,245 INFO L857 garLoopResultBuilder]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,245 INFO L857 garLoopResultBuilder]: For program point L181(line 181) no Hoare annotation was computed. [2021-08-25 21:46:09,245 INFO L857 garLoopResultBuilder]: For program point L115(line 115) no Hoare annotation was computed. [2021-08-25 21:46:09,245 INFO L857 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2021-08-25 21:46:09,245 INFO L857 garLoopResultBuilder]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,245 INFO L857 garLoopResultBuilder]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,245 INFO L857 garLoopResultBuilder]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,246 INFO L857 garLoopResultBuilder]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,246 INFO L857 garLoopResultBuilder]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,246 INFO L857 garLoopResultBuilder]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,246 INFO L857 garLoopResultBuilder]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,246 INFO L857 garLoopResultBuilder]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,246 INFO L857 garLoopResultBuilder]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,246 INFO L857 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2021-08-25 21:46:09,246 INFO L857 garLoopResultBuilder]: For program point L118(line 118) no Hoare annotation was computed. [2021-08-25 21:46:09,246 INFO L857 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2021-08-25 21:46:09,246 INFO L857 garLoopResultBuilder]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,246 INFO L853 garLoopResultBuilder]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse19 (+ ~a23~0 43)) (.cse9 (= ~a4~0 1))) (let ((.cse5 (<= 203 ~a29~0)) (.cse14 (<= ~a29~0 140)) (.cse0 (<= 0 (+ ~a23~0 599772))) (.cse11 (or (not (= 3 ULTIMATE.start_calculate_output_~input)) (< 140 ~a29~0) (< 0 .cse19) .cse9)) (.cse7 (not .cse9)) (.cse8 (<= ~a25~0 10)) (.cse10 (= ~a25~0 12)) (.cse18 (<= ~a4~0 0)) (.cse16 (= ~a25~0 10)) (.cse12 (= ~a25~0 13)) (.cse6 (<= .cse19 0)) (.cse13 (<= ~a29~0 245)) (.cse15 (<= 130 ~a29~0)) (.cse1 (= ~a25~0 11)) (.cse17 (<= 165 ~a23~0)) (.cse2 (= ~a3~0 1)) (.cse3 (<= ~a23~0 312)) (.cse4 (= ~a8~0 15))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse0 .cse1 .cse2 .cse7 .cse4) (and .cse8 .cse2 .cse9 .cse4) (and .cse10 .cse0 .cse11 .cse2 .cse3 .cse4) (and .cse12 .cse13 .cse2 .cse9 .cse4 .cse5) (and .cse14 .cse1 .cse2 .cse7 .cse3 .cse4) (and .cse0 .cse1 .cse2 .cse9 .cse4 .cse15) (and .cse0 .cse14 .cse2 .cse3 .cse4 .cse16) (and .cse6 .cse10 .cse11 .cse2 .cse7 .cse4) (and .cse6 .cse0 .cse8 .cse2 .cse4) (and .cse10 .cse2 .cse9 (<= 312 ~a23~0) .cse4 .cse15) (and .cse12 .cse17 .cse2 .cse9 .cse4) (and .cse14 .cse2 .cse3 (<= ~a25~0 9) .cse4) (and .cse0 .cse14 .cse2 .cse4 .cse18 .cse16) (and .cse12 .cse0 .cse2 .cse7 .cse3 .cse4) (and .cse10 .cse11 .cse2 .cse4 .cse18) (and (<= 260 ~a29~0) .cse1 .cse2 .cse7 .cse3 .cse4) (and .cse1 (<= ~a29~0 274) .cse2 .cse9 .cse4 .cse15) (and .cse6 .cse8 .cse9) (and .cse6 .cse8 (<= 10250 ~a29~0) .cse2 .cse4) (and .cse10 (< 371191 ~a23~0) .cse2 .cse9 .cse4) (and (<= 0 (+ (div (+ (- 28690) (* ~a29~0 (- 1))) 5) 49)) .cse2 .cse4 .cse18 .cse16) (and .cse12 .cse6 .cse13 .cse2 .cse9 .cse4 .cse15) (and .cse1 .cse17 .cse2 .cse9 .cse3 .cse4)))) [2021-08-25 21:46:09,246 INFO L857 garLoopResultBuilder]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,246 INFO L857 garLoopResultBuilder]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,246 INFO L857 garLoopResultBuilder]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,247 INFO L857 garLoopResultBuilder]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,247 INFO L857 garLoopResultBuilder]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,247 INFO L857 garLoopResultBuilder]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,247 INFO L857 garLoopResultBuilder]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,247 INFO L857 garLoopResultBuilder]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,247 INFO L857 garLoopResultBuilder]: For program point L187(line 187) no Hoare annotation was computed. [2021-08-25 21:46:09,247 INFO L857 garLoopResultBuilder]: For program point L121(line 121) no Hoare annotation was computed. [2021-08-25 21:46:09,247 INFO L857 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2021-08-25 21:46:09,247 INFO L857 garLoopResultBuilder]: For program point L980(lines 980 990) no Hoare annotation was computed. [2021-08-25 21:46:09,248 INFO L857 garLoopResultBuilder]: For program point L914(lines 914 924) no Hoare annotation was computed. [2021-08-25 21:46:09,248 INFO L857 garLoopResultBuilder]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2021-08-25 21:46:09,248 INFO L857 garLoopResultBuilder]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2021-08-25 21:46:09,248 INFO L857 garLoopResultBuilder]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,248 INFO L857 garLoopResultBuilder]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,248 INFO L857 garLoopResultBuilder]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,248 INFO L857 garLoopResultBuilder]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,248 INFO L857 garLoopResultBuilder]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,248 INFO L857 garLoopResultBuilder]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,248 INFO L857 garLoopResultBuilder]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,249 INFO L857 garLoopResultBuilder]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,249 INFO L857 garLoopResultBuilder]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,249 INFO L857 garLoopResultBuilder]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,249 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-25 21:46:09,249 INFO L857 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2021-08-25 21:46:09,249 INFO L857 garLoopResultBuilder]: For program point L124(line 124) no Hoare annotation was computed. [2021-08-25 21:46:09,249 INFO L857 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2021-08-25 21:46:09,249 INFO L857 garLoopResultBuilder]: For program point L1049(line 1049) no Hoare annotation was computed. [2021-08-25 21:46:09,249 INFO L857 garLoopResultBuilder]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,249 INFO L857 garLoopResultBuilder]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,249 INFO L857 garLoopResultBuilder]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,249 INFO L857 garLoopResultBuilder]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,249 INFO L857 garLoopResultBuilder]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,249 INFO L857 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-08-25 21:46:09,249 INFO L857 garLoopResultBuilder]: For program point L127(line 127) no Hoare annotation was computed. [2021-08-25 21:46:09,249 INFO L857 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2021-08-25 21:46:09,249 INFO L857 garLoopResultBuilder]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,249 INFO L857 garLoopResultBuilder]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,249 INFO L857 garLoopResultBuilder]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,250 INFO L857 garLoopResultBuilder]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,250 INFO L857 garLoopResultBuilder]: For program point L525(lines 525 535) no Hoare annotation was computed. [2021-08-25 21:46:09,250 INFO L857 garLoopResultBuilder]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2021-08-25 21:46:09,250 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,250 INFO L857 garLoopResultBuilder]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,250 INFO L857 garLoopResultBuilder]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,250 INFO L857 garLoopResultBuilder]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,250 INFO L857 garLoopResultBuilder]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,250 INFO L857 garLoopResultBuilder]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,250 INFO L857 garLoopResultBuilder]: For program point L658(lines 658 667) no Hoare annotation was computed. [2021-08-25 21:46:09,250 INFO L857 garLoopResultBuilder]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2021-08-25 21:46:09,250 INFO L857 garLoopResultBuilder]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,250 INFO L857 garLoopResultBuilder]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,250 INFO L857 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2021-08-25 21:46:09,250 INFO L857 garLoopResultBuilder]: For program point L130(line 130) no Hoare annotation was computed. [2021-08-25 21:46:09,250 INFO L857 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2021-08-25 21:46:09,250 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-25 21:46:09,251 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 211) no Hoare annotation was computed. [2021-08-25 21:46:09,251 INFO L857 garLoopResultBuilder]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,251 INFO L857 garLoopResultBuilder]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,251 INFO L857 garLoopResultBuilder]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,251 INFO L857 garLoopResultBuilder]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,251 INFO L857 garLoopResultBuilder]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,251 INFO L857 garLoopResultBuilder]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,251 INFO L857 garLoopResultBuilder]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,251 INFO L857 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2021-08-25 21:46:09,251 INFO L857 garLoopResultBuilder]: For program point L133(line 133) no Hoare annotation was computed. [2021-08-25 21:46:09,251 INFO L857 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2021-08-25 21:46:09,251 INFO L857 garLoopResultBuilder]: For program point L926(lines 926 936) no Hoare annotation was computed. [2021-08-25 21:46:09,251 INFO L857 garLoopResultBuilder]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2021-08-25 21:46:09,251 INFO L857 garLoopResultBuilder]: For program point L728(lines 728 740) no Hoare annotation was computed. [2021-08-25 21:46:09,251 INFO L857 garLoopResultBuilder]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2021-08-25 21:46:09,251 INFO L857 garLoopResultBuilder]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,251 INFO L857 garLoopResultBuilder]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,251 INFO L857 garLoopResultBuilder]: For program point L597(lines 597 607) no Hoare annotation was computed. [2021-08-25 21:46:09,251 INFO L857 garLoopResultBuilder]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2021-08-25 21:46:09,251 INFO L857 garLoopResultBuilder]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,251 INFO L857 garLoopResultBuilder]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,252 INFO L857 garLoopResultBuilder]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,252 INFO L857 garLoopResultBuilder]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,252 INFO L857 garLoopResultBuilder]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,252 INFO L857 garLoopResultBuilder]: For program point L202(line 202) no Hoare annotation was computed. [2021-08-25 21:46:09,252 INFO L857 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2021-08-25 21:46:09,252 INFO L857 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2021-08-25 21:46:09,252 INFO L857 garLoopResultBuilder]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,252 INFO L857 garLoopResultBuilder]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,253 INFO L857 garLoopResultBuilder]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,253 INFO L857 garLoopResultBuilder]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,253 INFO L857 garLoopResultBuilder]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,253 INFO L857 garLoopResultBuilder]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,253 INFO L857 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-08-25 21:46:09,253 INFO L857 garLoopResultBuilder]: For program point L139(line 139) no Hoare annotation was computed. [2021-08-25 21:46:09,253 INFO L857 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-08-25 21:46:09,253 INFO L857 garLoopResultBuilder]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,253 INFO L857 garLoopResultBuilder]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,253 INFO L857 garLoopResultBuilder]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,254 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,254 INFO L857 garLoopResultBuilder]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,254 INFO L857 garLoopResultBuilder]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,254 INFO L857 garLoopResultBuilder]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,254 INFO L857 garLoopResultBuilder]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,254 INFO L857 garLoopResultBuilder]: For program point L208(line 208) no Hoare annotation was computed. [2021-08-25 21:46:09,254 INFO L857 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2021-08-25 21:46:09,254 INFO L857 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-08-25 21:46:09,254 INFO L857 garLoopResultBuilder]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,254 INFO L857 garLoopResultBuilder]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,254 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,254 INFO L857 garLoopResultBuilder]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,254 INFO L857 garLoopResultBuilder]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,254 INFO L857 garLoopResultBuilder]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,254 INFO L857 garLoopResultBuilder]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,254 INFO L857 garLoopResultBuilder]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,254 INFO L857 garLoopResultBuilder]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,254 INFO L857 garLoopResultBuilder]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,254 INFO L857 garLoopResultBuilder]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,254 INFO L857 garLoopResultBuilder]: For program point L409(lines 409 420) no Hoare annotation was computed. [2021-08-25 21:46:09,255 INFO L857 garLoopResultBuilder]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2021-08-25 21:46:09,255 INFO L857 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-08-25 21:46:09,255 INFO L857 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2021-08-25 21:46:09,255 INFO L857 garLoopResultBuilder]: For program point L79(line 79) no Hoare annotation was computed. [2021-08-25 21:46:09,255 INFO L857 garLoopResultBuilder]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,255 INFO L857 garLoopResultBuilder]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,255 INFO L857 garLoopResultBuilder]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,255 INFO L857 garLoopResultBuilder]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,256 INFO L857 garLoopResultBuilder]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,256 INFO L857 garLoopResultBuilder]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,256 INFO L857 garLoopResultBuilder]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,256 INFO L857 garLoopResultBuilder]: For program point L214(line 214) no Hoare annotation was computed. [2021-08-25 21:46:09,256 INFO L857 garLoopResultBuilder]: For program point L148(line 148) no Hoare annotation was computed. [2021-08-25 21:46:09,256 INFO L857 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2021-08-25 21:46:09,256 INFO L857 garLoopResultBuilder]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,256 INFO L857 garLoopResultBuilder]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,256 INFO L857 garLoopResultBuilder]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,257 INFO L857 garLoopResultBuilder]: For program point L876(lines 876 885) no Hoare annotation was computed. [2021-08-25 21:46:09,257 INFO L857 garLoopResultBuilder]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2021-08-25 21:46:09,257 INFO L857 garLoopResultBuilder]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,257 INFO L857 garLoopResultBuilder]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,257 INFO L857 garLoopResultBuilder]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,257 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,257 INFO L857 garLoopResultBuilder]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,257 INFO L857 garLoopResultBuilder]: For program point L151(line 151) no Hoare annotation was computed. [2021-08-25 21:46:09,257 INFO L857 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2021-08-25 21:46:09,258 INFO L857 garLoopResultBuilder]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,258 INFO L857 garLoopResultBuilder]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,258 INFO L857 garLoopResultBuilder]: For program point L614(lines 614 624) no Hoare annotation was computed. [2021-08-25 21:46:09,258 INFO L857 garLoopResultBuilder]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2021-08-25 21:46:09,258 INFO L857 garLoopResultBuilder]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,258 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-25 21:46:09,258 INFO L857 garLoopResultBuilder]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,258 INFO L857 garLoopResultBuilder]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,259 INFO L857 garLoopResultBuilder]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,259 INFO L857 garLoopResultBuilder]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,259 INFO L857 garLoopResultBuilder]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,259 INFO L857 garLoopResultBuilder]: For program point L154(line 154) no Hoare annotation was computed. [2021-08-25 21:46:09,259 INFO L857 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-08-25 21:46:09,259 INFO L857 garLoopResultBuilder]: For program point L815(lines 815 825) no Hoare annotation was computed. [2021-08-25 21:46:09,259 INFO L857 garLoopResultBuilder]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2021-08-25 21:46:09,259 INFO L857 garLoopResultBuilder]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,259 INFO L857 garLoopResultBuilder]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,260 INFO L857 garLoopResultBuilder]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,260 INFO L857 garLoopResultBuilder]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,260 INFO L857 garLoopResultBuilder]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,260 INFO L857 garLoopResultBuilder]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,260 INFO L857 garLoopResultBuilder]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,260 INFO L857 garLoopResultBuilder]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,260 INFO L857 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2021-08-25 21:46:09,260 INFO L857 garLoopResultBuilder]: For program point L91(line 91) no Hoare annotation was computed. [2021-08-25 21:46:09,261 INFO L857 garLoopResultBuilder]: For program point L950(lines 950 962) no Hoare annotation was computed. [2021-08-25 21:46:09,261 INFO L857 garLoopResultBuilder]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2021-08-25 21:46:09,261 INFO L857 garLoopResultBuilder]: For program point L488(lines 488 496) no Hoare annotation was computed. [2021-08-25 21:46:09,261 INFO L857 garLoopResultBuilder]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2021-08-25 21:46:09,261 INFO L857 garLoopResultBuilder]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,261 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,261 INFO L857 garLoopResultBuilder]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,261 INFO L857 garLoopResultBuilder]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,262 INFO L857 garLoopResultBuilder]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,262 INFO L857 garLoopResultBuilder]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,262 INFO L857 garLoopResultBuilder]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,262 INFO L857 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2021-08-25 21:46:09,262 INFO L857 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2021-08-25 21:46:09,262 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-25 21:46:09,262 INFO L857 garLoopResultBuilder]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,262 INFO L857 garLoopResultBuilder]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,263 INFO L857 garLoopResultBuilder]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,263 INFO L857 garLoopResultBuilder]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,263 INFO L857 garLoopResultBuilder]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,263 INFO L857 garLoopResultBuilder]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,263 INFO L857 garLoopResultBuilder]: For program point L163(line 163) no Hoare annotation was computed. [2021-08-25 21:46:09,263 INFO L857 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2021-08-25 21:46:09,263 INFO L857 garLoopResultBuilder]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,263 INFO L857 garLoopResultBuilder]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,263 INFO L857 garLoopResultBuilder]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,264 INFO L857 garLoopResultBuilder]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,264 INFO L857 garLoopResultBuilder]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,264 INFO L857 garLoopResultBuilder]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,264 INFO L857 garLoopResultBuilder]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,264 INFO L857 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2021-08-25 21:46:09,264 INFO L857 garLoopResultBuilder]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:46:09,264 INFO L857 garLoopResultBuilder]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,264 INFO L857 garLoopResultBuilder]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,265 INFO L857 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2021-08-25 21:46:09,265 INFO L857 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-08-25 21:46:09,265 INFO L857 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-08-25 21:46:09,265 INFO L857 garLoopResultBuilder]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2021-08-25 21:46:09,269 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-25 21:46:09,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 09:46:09 BoogieIcfgContainer [2021-08-25 21:46:09,294 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-25 21:46:09,295 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-25 21:46:09,295 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-25 21:46:09,295 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-25 21:46:09,295 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 09:45:02" (3/4) ... [2021-08-25 21:46:09,298 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-25 21:46:09,319 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-08-25 21:46:09,321 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-25 21:46:09,322 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-25 21:46:09,324 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-25 21:46:09,423 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-25 21:46:09,424 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-25 21:46:09,425 INFO L168 Benchmark]: Toolchain (without parser) took 69845.36 ms. Allocated memory was 54.5 MB in the beginning and 2.3 GB in the end (delta: 2.2 GB). Free memory was 30.6 MB in the beginning and 1.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 942.7 MB. Max. memory is 16.1 GB. [2021-08-25 21:46:09,425 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 54.5 MB. Free memory was 36.7 MB in the beginning and 36.7 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-25 21:46:09,426 INFO L168 Benchmark]: CACSL2BoogieTranslator took 709.01 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 30.4 MB in the beginning and 38.6 MB in the end (delta: -8.2 MB). Peak memory consumption was 13.4 MB. Max. memory is 16.1 GB. [2021-08-25 21:46:09,426 INFO L168 Benchmark]: Boogie Procedure Inliner took 133.05 ms. Allocated memory is still 67.1 MB. Free memory was 38.6 MB in the beginning and 31.8 MB in the end (delta: 6.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 16.1 GB. [2021-08-25 21:46:09,426 INFO L168 Benchmark]: Boogie Preprocessor took 138.63 ms. Allocated memory was 67.1 MB in the beginning and 86.0 MB in the end (delta: 18.9 MB). Free memory was 31.8 MB in the beginning and 48.7 MB in the end (delta: -16.9 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. [2021-08-25 21:46:09,427 INFO L168 Benchmark]: RCFGBuilder took 1735.53 ms. Allocated memory was 86.0 MB in the beginning and 127.9 MB in the end (delta: 41.9 MB). Free memory was 48.7 MB in the beginning and 50.7 MB in the end (delta: -2.1 MB). Peak memory consumption was 44.4 MB. Max. memory is 16.1 GB. [2021-08-25 21:46:09,427 INFO L168 Benchmark]: TraceAbstraction took 66990.73 ms. Allocated memory was 127.9 MB in the beginning and 2.3 GB in the end (delta: 2.2 GB). Free memory was 49.9 MB in the beginning and 1.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.3 GB. Max. memory is 16.1 GB. [2021-08-25 21:46:09,427 INFO L168 Benchmark]: Witness Printer took 129.15 ms. Allocated memory is still 2.3 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-08-25 21:46:09,429 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 54.5 MB. Free memory was 36.7 MB in the beginning and 36.7 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 709.01 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 30.4 MB in the beginning and 38.6 MB in the end (delta: -8.2 MB). Peak memory consumption was 13.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 133.05 ms. Allocated memory is still 67.1 MB. Free memory was 38.6 MB in the beginning and 31.8 MB in the end (delta: 6.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 138.63 ms. Allocated memory was 67.1 MB in the beginning and 86.0 MB in the end (delta: 18.9 MB). Free memory was 31.8 MB in the beginning and 48.7 MB in the end (delta: -16.9 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1735.53 ms. Allocated memory was 86.0 MB in the beginning and 127.9 MB in the end (delta: 41.9 MB). Free memory was 48.7 MB in the beginning and 50.7 MB in the end (delta: -2.1 MB). Peak memory consumption was 44.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 66990.73 ms. Allocated memory was 127.9 MB in the beginning and 2.3 GB in the end (delta: 2.2 GB). Free memory was 49.9 MB in the beginning and 1.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.3 GB. Max. memory is 16.1 GB. * Witness Printer took 129.15 ms. Allocated memory is still 2.3 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 211]: 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, 283 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 66894.7ms, OverallIterations: 25, TraceHistogramMax: 5, EmptinessCheckTime: 250.3ms, AutomataDifference: 27367.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 4178.0ms, InitialAbstractionConstructionTime: 14.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 5148 SDtfs, 5474 SDslu, 700 SDs, 0 SdLazy, 20025 SolverSat, 2740 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18376.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3843 GetRequests, 3766 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 466.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=32846occurred in iteration=21, InterpolantAutomatonStates: 94, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 4623.2ms AutomataMinimizationTime, 25 MinimizatonAttempts, 27117 StatesRemovedByMinimization, 22 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 379 NumberOfFragments, 1009 HoareAnnotationTreeSize, 3 FomulaSimplifications, 48242 FormulaSimplificationTreeSizeReduction, 1631.5ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 6556 FormulaSimplificationTreeSizeReductionInter, 2534.3ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 683.6ms SsaConstructionTime, 1633.0ms SatisfiabilityAnalysisTime, 18086.0ms InterpolantComputationTime, 12285 NumberOfCodeBlocks, 12285 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 12250 ConstructedInterpolants, 0 QuantifiedInterpolants, 52353 SizeOfPredicates, 4 NumberOfNonLiveVariables, 5206 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 35 InterpolantComputations, 23 PerfectInterpolantSequences, 12806/14184 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: 1044]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((0 <= a23 + 599772 && a25 == 11) && a3 == 1) && a23 <= 312) && a8 == 15) && 203 <= a29) || (((((a23 + 43 <= 0 && 0 <= a23 + 599772) && a25 == 11) && a3 == 1) && !(a4 == 1)) && a8 == 15)) || (((a25 <= 10 && a3 == 1) && a4 == 1) && a8 == 15)) || (((((a25 == 12 && 0 <= a23 + 599772) && (((!(3 == input) || 140 < a29) || 0 < a23 + 43) || a4 == 1)) && a3 == 1) && a23 <= 312) && a8 == 15)) || (((((a25 == 13 && a29 <= 245) && a3 == 1) && a4 == 1) && a8 == 15) && 203 <= a29)) || (((((a29 <= 140 && a25 == 11) && a3 == 1) && !(a4 == 1)) && a23 <= 312) && a8 == 15)) || (((((0 <= a23 + 599772 && a25 == 11) && a3 == 1) && a4 == 1) && a8 == 15) && 130 <= a29)) || (((((0 <= a23 + 599772 && a29 <= 140) && a3 == 1) && a23 <= 312) && a8 == 15) && a25 == 10)) || (((((a23 + 43 <= 0 && a25 == 12) && (((!(3 == input) || 140 < a29) || 0 < a23 + 43) || a4 == 1)) && a3 == 1) && !(a4 == 1)) && a8 == 15)) || ((((a23 + 43 <= 0 && 0 <= a23 + 599772) && a25 <= 10) && a3 == 1) && a8 == 15)) || (((((a25 == 12 && a3 == 1) && a4 == 1) && 312 <= a23) && a8 == 15) && 130 <= a29)) || ((((a25 == 13 && 165 <= a23) && a3 == 1) && a4 == 1) && a8 == 15)) || ((((a29 <= 140 && a3 == 1) && a23 <= 312) && a25 <= 9) && a8 == 15)) || (((((0 <= a23 + 599772 && a29 <= 140) && a3 == 1) && a8 == 15) && a4 <= 0) && a25 == 10)) || (((((a25 == 13 && 0 <= a23 + 599772) && a3 == 1) && !(a4 == 1)) && a23 <= 312) && a8 == 15)) || ((((a25 == 12 && (((!(3 == input) || 140 < a29) || 0 < a23 + 43) || a4 == 1)) && a3 == 1) && a8 == 15) && a4 <= 0)) || (((((260 <= a29 && a25 == 11) && a3 == 1) && !(a4 == 1)) && a23 <= 312) && a8 == 15)) || (((((a25 == 11 && a29 <= 274) && a3 == 1) && a4 == 1) && a8 == 15) && 130 <= a29)) || ((a23 + 43 <= 0 && a25 <= 10) && a4 == 1)) || ((((a23 + 43 <= 0 && a25 <= 10) && 10250 <= a29) && a3 == 1) && a8 == 15)) || ((((a25 == 12 && 371191 < a23) && a3 == 1) && a4 == 1) && a8 == 15)) || ((((0 <= (-28690 + a29 * -1) / 5 + 49 && a3 == 1) && a8 == 15) && a4 <= 0) && a25 == 10)) || ((((((a25 == 13 && a23 + 43 <= 0) && a29 <= 245) && a3 == 1) && a4 == 1) && a8 == 15) && 130 <= a29)) || (((((a25 == 11 && 165 <= a23) && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((0 <= a23 + 599772 && a25 == 11) && a3 == 1) && a23 <= 312) && a8 == 15) && 203 <= a29) || (((((a23 + 43 <= 0 && 0 <= a23 + 599772) && a25 == 11) && a3 == 1) && !(a4 == 1)) && a8 == 15)) || (((a25 <= 10 && a3 == 1) && a4 == 1) && a8 == 15)) || (((((a25 == 12 && 0 <= a23 + 599772) && (((!(3 == input) || 140 < a29) || 0 < a23 + 43) || a4 == 1)) && a3 == 1) && a23 <= 312) && a8 == 15)) || (((((a25 == 13 && a29 <= 245) && a3 == 1) && a4 == 1) && a8 == 15) && 203 <= a29)) || (((((a29 <= 140 && a25 == 11) && a3 == 1) && !(a4 == 1)) && a23 <= 312) && a8 == 15)) || (((((0 <= a23 + 599772 && a25 == 11) && a3 == 1) && a4 == 1) && a8 == 15) && 130 <= a29)) || (((((0 <= a23 + 599772 && a29 <= 140) && a3 == 1) && a23 <= 312) && a8 == 15) && a25 == 10)) || (((((a23 + 43 <= 0 && a25 == 12) && (((!(3 == input) || 140 < a29) || 0 < a23 + 43) || a4 == 1)) && a3 == 1) && !(a4 == 1)) && a8 == 15)) || ((((a23 + 43 <= 0 && 0 <= a23 + 599772) && a25 <= 10) && a3 == 1) && a8 == 15)) || (((((a25 == 12 && a3 == 1) && a4 == 1) && 312 <= a23) && a8 == 15) && 130 <= a29)) || ((((a25 == 13 && 165 <= a23) && a3 == 1) && a4 == 1) && a8 == 15)) || ((((a29 <= 140 && a3 == 1) && a23 <= 312) && a25 <= 9) && a8 == 15)) || (((((0 <= a23 + 599772 && a29 <= 140) && a3 == 1) && a8 == 15) && a4 <= 0) && a25 == 10)) || (((((a25 == 13 && 0 <= a23 + 599772) && a3 == 1) && !(a4 == 1)) && a23 <= 312) && a8 == 15)) || ((((a25 == 12 && (((!(3 == input) || 140 < a29) || 0 < a23 + 43) || a4 == 1)) && a3 == 1) && a8 == 15) && a4 <= 0)) || (((((260 <= a29 && a25 == 11) && a3 == 1) && !(a4 == 1)) && a23 <= 312) && a8 == 15)) || (((((a25 == 11 && a29 <= 274) && a3 == 1) && a4 == 1) && a8 == 15) && 130 <= a29)) || ((a23 + 43 <= 0 && a25 <= 10) && a4 == 1)) || ((((a23 + 43 <= 0 && a25 <= 10) && 10250 <= a29) && a3 == 1) && a8 == 15)) || ((((a25 == 12 && 371191 < a23) && a3 == 1) && a4 == 1) && a8 == 15)) || ((((0 <= (-28690 + a29 * -1) / 5 + 49 && a3 == 1) && a8 == 15) && a4 <= 0) && a25 == 10)) || ((((((a25 == 13 && a23 + 43 <= 0) && a29 <= 245) && a3 == 1) && a4 == 1) && a8 == 15) && 130 <= a29)) || (((((a25 == 11 && 165 <= a23) && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15) - InvariantResult [Line: 1038]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-08-25 21:46:09,460 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...