./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem11_label41.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_label41.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 bc49c6ab73202743f62102aea7ab0b4891404056 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 21:46:19,173 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-25 21:46:19,175 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-25 21:46:19,207 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-25 21:46:19,207 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-25 21:46:19,210 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-25 21:46:19,211 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-25 21:46:19,218 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-25 21:46:19,219 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-25 21:46:19,223 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-25 21:46:19,224 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-25 21:46:19,226 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-25 21:46:19,227 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-25 21:46:19,229 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-25 21:46:19,230 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-25 21:46:19,232 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-25 21:46:19,233 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-25 21:46:19,234 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-25 21:46:19,235 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-25 21:46:19,239 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-25 21:46:19,240 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-25 21:46:19,241 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-25 21:46:19,242 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-25 21:46:19,243 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-25 21:46:19,247 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-25 21:46:19,248 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-25 21:46:19,248 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-25 21:46:19,259 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-25 21:46:19,259 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-25 21:46:19,260 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-25 21:46:19,260 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-25 21:46:19,261 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-25 21:46:19,262 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-25 21:46:19,262 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-25 21:46:19,263 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-25 21:46:19,263 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-25 21:46:19,264 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-25 21:46:19,264 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-25 21:46:19,264 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-25 21:46:19,265 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-25 21:46:19,266 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-25 21:46:19,269 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-25 21:46:19,296 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-25 21:46:19,296 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-25 21:46:19,297 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-25 21:46:19,297 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-25 21:46:19,298 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-25 21:46:19,298 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-25 21:46:19,299 INFO L138 SettingsManager]: * Use SBE=true [2021-08-25 21:46:19,299 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-25 21:46:19,299 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-25 21:46:19,299 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-25 21:46:19,300 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-25 21:46:19,300 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-25 21:46:19,300 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-25 21:46:19,300 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-25 21:46:19,300 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-25 21:46:19,301 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-25 21:46:19,301 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-25 21:46:19,301 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-25 21:46:19,301 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-25 21:46:19,301 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-25 21:46:19,301 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-25 21:46:19,301 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-25 21:46:19,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 21:46:19,302 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-25 21:46:19,302 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-25 21:46:19,302 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-25 21:46:19,302 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-25 21:46:19,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-25 21:46:19,302 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-25 21:46:19,302 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-25 21:46:19,303 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc49c6ab73202743f62102aea7ab0b4891404056 [2021-08-25 21:46:19,551 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-25 21:46:19,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-25 21:46:19,571 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-25 21:46:19,572 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-25 21:46:19,573 INFO L275 PluginConnector]: CDTParser initialized [2021-08-25 21:46:19,573 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem11_label41.c [2021-08-25 21:46:19,621 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6c8bd0a4/84b1a1a81ade4d86948dc367ed6f1527/FLAG916088ae0 [2021-08-25 21:46:20,103 INFO L306 CDTParser]: Found 1 translation units. [2021-08-25 21:46:20,103 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label41.c [2021-08-25 21:46:20,112 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6c8bd0a4/84b1a1a81ade4d86948dc367ed6f1527/FLAG916088ae0 [2021-08-25 21:46:20,598 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6c8bd0a4/84b1a1a81ade4d86948dc367ed6f1527 [2021-08-25 21:46:20,600 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-25 21:46:20,601 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-25 21:46:20,601 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-25 21:46:20,601 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-25 21:46:20,604 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-25 21:46:20,605 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 09:46:20" (1/1) ... [2021-08-25 21:46:20,608 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@517458dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:46:20, skipping insertion in model container [2021-08-25 21:46:20,608 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 09:46:20" (1/1) ... [2021-08-25 21:46:20,612 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-25 21:46:20,645 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-25 21:46:20,760 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_label41.c[3129,3142] [2021-08-25 21:46:20,995 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 21:46:21,000 INFO L203 MainTranslator]: Completed pre-run [2021-08-25 21:46:21,022 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_label41.c[3129,3142] [2021-08-25 21:46:21,119 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 21:46:21,130 INFO L208 MainTranslator]: Completed translation [2021-08-25 21:46:21,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:46:21 WrapperNode [2021-08-25 21:46:21,131 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-25 21:46:21,132 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-25 21:46:21,133 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-25 21:46:21,133 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-25 21:46:21,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:46:21" (1/1) ... [2021-08-25 21:46:21,164 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:46:21" (1/1) ... [2021-08-25 21:46:21,242 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-25 21:46:21,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-25 21:46:21,244 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-25 21:46:21,244 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-25 21:46:21,250 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:46:21" (1/1) ... [2021-08-25 21:46:21,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:46:21" (1/1) ... [2021-08-25 21:46:21,259 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:46:21" (1/1) ... [2021-08-25 21:46:21,259 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:46:21" (1/1) ... [2021-08-25 21:46:21,303 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:46:21" (1/1) ... [2021-08-25 21:46:21,315 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:46:21" (1/1) ... [2021-08-25 21:46:21,337 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:46:21" (1/1) ... [2021-08-25 21:46:21,349 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-25 21:46:21,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-25 21:46:21,355 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-25 21:46:21,356 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-25 21:46:21,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:46:21" (1/1) ... [2021-08-25 21:46:21,361 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 21:46:21,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 21:46:21,402 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 21:46:21,415 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 21:46:21,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-25 21:46:21,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-25 21:46:21,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-25 21:46:21,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-25 21:46:22,557 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-25 21:46:22,558 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-08-25 21:46:22,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 09:46:22 BoogieIcfgContainer [2021-08-25 21:46:22,559 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-25 21:46:22,560 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-25 21:46:22,560 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-25 21:46:22,562 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-25 21:46:22,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 09:46:20" (1/3) ... [2021-08-25 21:46:22,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@156ba4dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 09:46:22, skipping insertion in model container [2021-08-25 21:46:22,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:46:21" (2/3) ... [2021-08-25 21:46:22,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@156ba4dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 09:46:22, skipping insertion in model container [2021-08-25 21:46:22,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 09:46:22" (3/3) ... [2021-08-25 21:46:22,564 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label41.c [2021-08-25 21:46:22,567 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-25 21:46:22,567 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-25 21:46:22,605 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-25 21:46:22,611 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 21:46:22,611 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-25 21:46:22,631 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 21:46:22,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-08-25 21:46:22,634 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:46:22,635 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] [2021-08-25 21:46:22,635 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:46:22,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:46:22,639 INFO L82 PathProgramCache]: Analyzing trace with hash -85512855, now seen corresponding path program 1 times [2021-08-25 21:46:22,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:46:22,654 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628167009] [2021-08-25 21:46:22,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:46:22,655 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:46:22,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:46:22,832 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 21:46:22,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:46:22,833 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628167009] [2021-08-25 21:46:22,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628167009] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:46:22,833 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:46:22,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 21:46:22,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821699827] [2021-08-25 21:46:22,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:46:22,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:46:22,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:46:22,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:46:22,848 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 7.0) internal successors, (21), 2 states have internal predecessors, (21), 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 21:46:23,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:46:23,826 INFO L93 Difference]: Finished difference Result 761 states and 1345 transitions. [2021-08-25 21:46:23,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:46:23,828 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 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 21 [2021-08-25 21:46:23,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:46:23,836 INFO L225 Difference]: With dead ends: 761 [2021-08-25 21:46:23,837 INFO L226 Difference]: Without dead ends: 413 [2021-08-25 21:46:23,839 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:46:23,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2021-08-25 21:46:23,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2021-08-25 21:46:23,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 412 states have (on average 1.453883495145631) internal successors, (599), 412 states have internal predecessors, (599), 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 21:46:23,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 599 transitions. [2021-08-25 21:46:23,874 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 599 transitions. Word has length 21 [2021-08-25 21:46:23,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:46:23,874 INFO L470 AbstractCegarLoop]: Abstraction has 413 states and 599 transitions. [2021-08-25 21:46:23,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 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 21:46:23,874 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 599 transitions. [2021-08-25 21:46:23,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-08-25 21:46:23,876 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:46:23,876 INFO L512 BasicCegarLoop]: trace histogram [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 21:46:23,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-25 21:46:23,876 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:46:23,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:46:23,877 INFO L82 PathProgramCache]: Analyzing trace with hash -1756349648, now seen corresponding path program 1 times [2021-08-25 21:46:23,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:46:23,877 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535595424] [2021-08-25 21:46:23,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:46:23,877 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:46:23,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:46:23,941 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:46:23,941 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:46:23,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535595424] [2021-08-25 21:46:23,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535595424] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:46:23,942 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:46:23,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 21:46:23,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546221344] [2021-08-25 21:46:23,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:46:23,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:46:23,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:46:23,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:46:23,944 INFO L87 Difference]: Start difference. First operand 413 states and 599 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 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 21:46:24,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:46:24,677 INFO L93 Difference]: Finished difference Result 1211 states and 1763 transitions. [2021-08-25 21:46:24,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:46:24,680 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 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 89 [2021-08-25 21:46:24,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:46:24,683 INFO L225 Difference]: With dead ends: 1211 [2021-08-25 21:46:24,683 INFO L226 Difference]: Without dead ends: 800 [2021-08-25 21:46:24,684 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:46:24,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2021-08-25 21:46:24,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 789. [2021-08-25 21:46:24,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 788 states have (on average 1.3743654822335025) internal successors, (1083), 788 states have internal predecessors, (1083), 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 21:46:24,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1083 transitions. [2021-08-25 21:46:24,714 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1083 transitions. Word has length 89 [2021-08-25 21:46:24,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:46:24,714 INFO L470 AbstractCegarLoop]: Abstraction has 789 states and 1083 transitions. [2021-08-25 21:46:24,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 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 21:46:24,715 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1083 transitions. [2021-08-25 21:46:24,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-08-25 21:46:24,716 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:46:24,716 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:46:24,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-25 21:46:24,716 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:46:24,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:46:24,717 INFO L82 PathProgramCache]: Analyzing trace with hash -1927914827, now seen corresponding path program 1 times [2021-08-25 21:46:24,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:46:24,717 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328494703] [2021-08-25 21:46:24,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:46:24,717 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:46:24,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:46:24,797 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:46:24,798 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:46:24,798 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328494703] [2021-08-25 21:46:24,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328494703] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:46:24,799 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:46:24,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 21:46:24,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204474405] [2021-08-25 21:46:24,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:46:24,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:46:24,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:46:24,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:46:24,805 INFO L87 Difference]: Start difference. First operand 789 states and 1083 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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 21:46:25,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:46:25,429 INFO L93 Difference]: Finished difference Result 1945 states and 2612 transitions. [2021-08-25 21:46:25,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:46:25,430 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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 91 [2021-08-25 21:46:25,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:46:25,433 INFO L225 Difference]: With dead ends: 1945 [2021-08-25 21:46:25,433 INFO L226 Difference]: Without dead ends: 1158 [2021-08-25 21:46:25,434 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:46:25,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2021-08-25 21:46:25,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1157. [2021-08-25 21:46:25,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1156 states have (on average 1.2707612456747406) internal successors, (1469), 1156 states have internal predecessors, (1469), 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 21:46:25,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1469 transitions. [2021-08-25 21:46:25,452 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1469 transitions. Word has length 91 [2021-08-25 21:46:25,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:46:25,452 INFO L470 AbstractCegarLoop]: Abstraction has 1157 states and 1469 transitions. [2021-08-25 21:46:25,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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 21:46:25,452 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1469 transitions. [2021-08-25 21:46:25,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-08-25 21:46:25,453 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:46:25,454 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:46:25,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-25 21:46:25,454 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:46:25,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:46:25,454 INFO L82 PathProgramCache]: Analyzing trace with hash -682660523, now seen corresponding path program 1 times [2021-08-25 21:46:25,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:46:25,455 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121498370] [2021-08-25 21:46:25,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:46:25,455 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:46:25,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:46:25,536 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:46:25,536 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:46:25,536 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121498370] [2021-08-25 21:46:25,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121498370] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:46:25,536 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:46:25,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:46:25,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210252484] [2021-08-25 21:46:25,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:46:25,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:46:25,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:46:25,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:46:25,538 INFO L87 Difference]: Start difference. First operand 1157 states and 1469 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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 21:46:26,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:46:26,158 INFO L93 Difference]: Finished difference Result 2519 states and 3349 transitions. [2021-08-25 21:46:26,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:46:26,159 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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 148 [2021-08-25 21:46:26,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:46:26,163 INFO L225 Difference]: With dead ends: 2519 [2021-08-25 21:46:26,163 INFO L226 Difference]: Without dead ends: 1548 [2021-08-25 21:46:26,164 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:46:26,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1548 states. [2021-08-25 21:46:26,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1548 to 1545. [2021-08-25 21:46:26,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1545 states, 1544 states have (on average 1.2933937823834196) internal successors, (1997), 1544 states have internal predecessors, (1997), 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 21:46:26,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 1997 transitions. [2021-08-25 21:46:26,184 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 1997 transitions. Word has length 148 [2021-08-25 21:46:26,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:46:26,184 INFO L470 AbstractCegarLoop]: Abstraction has 1545 states and 1997 transitions. [2021-08-25 21:46:26,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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 21:46:26,185 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 1997 transitions. [2021-08-25 21:46:26,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-08-25 21:46:26,187 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:46:26,187 INFO L512 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:46:26,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-25 21:46:26,187 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:46:26,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:46:26,188 INFO L82 PathProgramCache]: Analyzing trace with hash 1487557496, now seen corresponding path program 1 times [2021-08-25 21:46:26,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:46:26,188 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696869197] [2021-08-25 21:46:26,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:46:26,188 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:46:26,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:46:26,254 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-08-25 21:46:26,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:46:26,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696869197] [2021-08-25 21:46:26,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696869197] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:46:26,255 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:46:26,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:46:26,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142942057] [2021-08-25 21:46:26,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:46:26,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:46:26,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:46:26,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:46:26,257 INFO L87 Difference]: Start difference. First operand 1545 states and 1997 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 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 21:46:26,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:46:26,998 INFO L93 Difference]: Finished difference Result 3643 states and 4872 transitions. [2021-08-25 21:46:26,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:46:26,999 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 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 203 [2021-08-25 21:46:27,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:46:27,005 INFO L225 Difference]: With dead ends: 3643 [2021-08-25 21:46:27,005 INFO L226 Difference]: Without dead ends: 2284 [2021-08-25 21:46:27,007 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:46:27,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2284 states. [2021-08-25 21:46:27,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2284 to 2284. [2021-08-25 21:46:27,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2284 states, 2283 states have (on average 1.314060446780552) internal successors, (3000), 2283 states have internal predecessors, (3000), 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 21:46:27,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2284 states to 2284 states and 3000 transitions. [2021-08-25 21:46:27,034 INFO L78 Accepts]: Start accepts. Automaton has 2284 states and 3000 transitions. Word has length 203 [2021-08-25 21:46:27,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:46:27,035 INFO L470 AbstractCegarLoop]: Abstraction has 2284 states and 3000 transitions. [2021-08-25 21:46:27,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 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 21:46:27,035 INFO L276 IsEmpty]: Start isEmpty. Operand 2284 states and 3000 transitions. [2021-08-25 21:46:27,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-08-25 21:46:27,037 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:46:27,037 INFO L512 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:46:27,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-25 21:46:27,037 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:46:27,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:46:27,038 INFO L82 PathProgramCache]: Analyzing trace with hash 1025688727, now seen corresponding path program 1 times [2021-08-25 21:46:27,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:46:27,038 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908961915] [2021-08-25 21:46:27,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:46:27,039 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:46:27,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:46:27,135 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-08-25 21:46:27,136 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:46:27,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908961915] [2021-08-25 21:46:27,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908961915] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:46:27,136 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:46:27,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:46:27,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367381082] [2021-08-25 21:46:27,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:46:27,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:46:27,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:46:27,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:46:27,142 INFO L87 Difference]: Start difference. First operand 2284 states and 3000 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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 21:46:27,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:46:27,840 INFO L93 Difference]: Finished difference Result 5310 states and 7081 transitions. [2021-08-25 21:46:27,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:46:27,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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 214 [2021-08-25 21:46:27,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:46:27,853 INFO L225 Difference]: With dead ends: 5310 [2021-08-25 21:46:27,854 INFO L226 Difference]: Without dead ends: 3212 [2021-08-25 21:46:27,860 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:46:27,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3212 states. [2021-08-25 21:46:27,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3212 to 3203. [2021-08-25 21:46:27,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3203 states, 3202 states have (on average 1.2723297938788258) internal successors, (4074), 3202 states have internal predecessors, (4074), 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 21:46:27,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3203 states to 3203 states and 4074 transitions. [2021-08-25 21:46:27,918 INFO L78 Accepts]: Start accepts. Automaton has 3203 states and 4074 transitions. Word has length 214 [2021-08-25 21:46:27,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:46:27,919 INFO L470 AbstractCegarLoop]: Abstraction has 3203 states and 4074 transitions. [2021-08-25 21:46:27,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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 21:46:27,919 INFO L276 IsEmpty]: Start isEmpty. Operand 3203 states and 4074 transitions. [2021-08-25 21:46:27,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-08-25 21:46:27,921 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:46:27,921 INFO L512 BasicCegarLoop]: trace histogram [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, 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] [2021-08-25 21:46:27,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-25 21:46:27,922 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:46:27,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:46:27,923 INFO L82 PathProgramCache]: Analyzing trace with hash 307563977, now seen corresponding path program 1 times [2021-08-25 21:46:27,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:46:27,925 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944596330] [2021-08-25 21:46:27,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:46:27,926 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:46:27,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:46:28,010 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2021-08-25 21:46:28,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:46:28,011 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944596330] [2021-08-25 21:46:28,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944596330] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:46:28,012 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:46:28,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:46:28,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962940750] [2021-08-25 21:46:28,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:46:28,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:46:28,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:46:28,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:46:28,013 INFO L87 Difference]: Start difference. First operand 3203 states and 4074 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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 21:46:28,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:46:28,717 INFO L93 Difference]: Finished difference Result 8431 states and 10891 transitions. [2021-08-25 21:46:28,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:46:28,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 234 [2021-08-25 21:46:28,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:46:28,732 INFO L225 Difference]: With dead ends: 8431 [2021-08-25 21:46:28,732 INFO L226 Difference]: Without dead ends: 5414 [2021-08-25 21:46:28,736 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:46:28,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5414 states. [2021-08-25 21:46:28,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5414 to 5411. [2021-08-25 21:46:28,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5411 states, 5410 states have (on average 1.2541589648798521) internal successors, (6785), 5410 states have internal predecessors, (6785), 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 21:46:28,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5411 states to 5411 states and 6785 transitions. [2021-08-25 21:46:28,805 INFO L78 Accepts]: Start accepts. Automaton has 5411 states and 6785 transitions. Word has length 234 [2021-08-25 21:46:28,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:46:28,805 INFO L470 AbstractCegarLoop]: Abstraction has 5411 states and 6785 transitions. [2021-08-25 21:46:28,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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 21:46:28,806 INFO L276 IsEmpty]: Start isEmpty. Operand 5411 states and 6785 transitions. [2021-08-25 21:46:28,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2021-08-25 21:46:28,810 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:46:28,811 INFO L512 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:46:28,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-25 21:46:28,811 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:46:28,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:46:28,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1325455450, now seen corresponding path program 1 times [2021-08-25 21:46:28,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:46:28,812 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778861856] [2021-08-25 21:46:28,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:46:28,812 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:46:28,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:46:28,933 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-08-25 21:46:28,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:46:28,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778861856] [2021-08-25 21:46:28,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778861856] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:46:28,934 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:46:28,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:46:28,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841344017] [2021-08-25 21:46:28,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:46:28,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:46:28,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:46:28,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:46:28,938 INFO L87 Difference]: Start difference. First operand 5411 states and 6785 transitions. Second operand has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 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 21:46:29,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:46:29,585 INFO L93 Difference]: Finished difference Result 11937 states and 15194 transitions. [2021-08-25 21:46:29,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:46:29,585 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 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 21:46:29,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:46:29,601 INFO L225 Difference]: With dead ends: 11937 [2021-08-25 21:46:29,601 INFO L226 Difference]: Without dead ends: 6712 [2021-08-25 21:46:29,606 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:46:29,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6712 states. [2021-08-25 21:46:29,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6712 to 6515. [2021-08-25 21:46:29,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6515 states, 6514 states have (on average 1.2331900521952717) internal successors, (8033), 6514 states have internal predecessors, (8033), 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 21:46:29,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6515 states to 6515 states and 8033 transitions. [2021-08-25 21:46:29,695 INFO L78 Accepts]: Start accepts. Automaton has 6515 states and 8033 transitions. Word has length 295 [2021-08-25 21:46:29,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:46:29,695 INFO L470 AbstractCegarLoop]: Abstraction has 6515 states and 8033 transitions. [2021-08-25 21:46:29,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 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 21:46:29,696 INFO L276 IsEmpty]: Start isEmpty. Operand 6515 states and 8033 transitions. [2021-08-25 21:46:29,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2021-08-25 21:46:29,703 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:46:29,703 INFO L512 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 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 21:46:29,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-25 21:46:29,704 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:46:29,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:46:29,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1545495602, now seen corresponding path program 1 times [2021-08-25 21:46:29,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:46:29,704 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146796587] [2021-08-25 21:46:29,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:46:29,705 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:46:29,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:46:29,805 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 257 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2021-08-25 21:46:29,805 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:46:29,805 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146796587] [2021-08-25 21:46:29,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146796587] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:46:29,806 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:46:29,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:46:29,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313097216] [2021-08-25 21:46:29,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:46:29,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:46:29,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:46:29,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:46:29,810 INFO L87 Difference]: Start difference. First operand 6515 states and 8033 transitions. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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 21:46:30,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:46:30,526 INFO L93 Difference]: Finished difference Result 14332 states and 17687 transitions. [2021-08-25 21:46:30,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:46:30,527 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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 356 [2021-08-25 21:46:30,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:46:30,545 INFO L225 Difference]: With dead ends: 14332 [2021-08-25 21:46:30,546 INFO L226 Difference]: Without dead ends: 7819 [2021-08-25 21:46:30,553 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:46:30,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7819 states. [2021-08-25 21:46:30,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7819 to 7435. [2021-08-25 21:46:30,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7435 states, 7434 states have (on average 1.2253161151466236) internal successors, (9109), 7434 states have internal predecessors, (9109), 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 21:46:30,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7435 states to 7435 states and 9109 transitions. [2021-08-25 21:46:30,700 INFO L78 Accepts]: Start accepts. Automaton has 7435 states and 9109 transitions. Word has length 356 [2021-08-25 21:46:30,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:46:30,701 INFO L470 AbstractCegarLoop]: Abstraction has 7435 states and 9109 transitions. [2021-08-25 21:46:30,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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 21:46:30,702 INFO L276 IsEmpty]: Start isEmpty. Operand 7435 states and 9109 transitions. [2021-08-25 21:46:30,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2021-08-25 21:46:30,716 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:46:30,716 INFO L512 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:46:30,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-25 21:46:30,717 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:46:30,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:46:30,717 INFO L82 PathProgramCache]: Analyzing trace with hash 2125057870, now seen corresponding path program 1 times [2021-08-25 21:46:30,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:46:30,718 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312553529] [2021-08-25 21:46:30,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:46:30,718 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:46:30,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:46:30,848 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 278 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2021-08-25 21:46:30,848 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:46:30,849 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312553529] [2021-08-25 21:46:30,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312553529] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:46:30,849 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:46:30,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:46:30,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915223399] [2021-08-25 21:46:30,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:46:30,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:46:30,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:46:30,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:46:30,851 INFO L87 Difference]: Start difference. First operand 7435 states and 9109 transitions. Second operand has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 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 21:46:31,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:46:31,552 INFO L93 Difference]: Finished difference Result 17075 states and 20963 transitions. [2021-08-25 21:46:31,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:46:31,555 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 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 379 [2021-08-25 21:46:31,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:46:31,568 INFO L225 Difference]: With dead ends: 17075 [2021-08-25 21:46:31,569 INFO L226 Difference]: Without dead ends: 9642 [2021-08-25 21:46:31,576 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 21:46:31,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9642 states. [2021-08-25 21:46:31,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9642 to 9642. [2021-08-25 21:46:31,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9642 states, 9641 states have (on average 1.2139819520796598) internal successors, (11704), 9641 states have internal predecessors, (11704), 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 21:46:31,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9642 states to 9642 states and 11704 transitions. [2021-08-25 21:46:31,666 INFO L78 Accepts]: Start accepts. Automaton has 9642 states and 11704 transitions. Word has length 379 [2021-08-25 21:46:31,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:46:31,667 INFO L470 AbstractCegarLoop]: Abstraction has 9642 states and 11704 transitions. [2021-08-25 21:46:31,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 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 21:46:31,667 INFO L276 IsEmpty]: Start isEmpty. Operand 9642 states and 11704 transitions. [2021-08-25 21:46:31,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2021-08-25 21:46:31,680 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:46:31,681 INFO L512 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 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 21:46:31,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-25 21:46:31,681 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:46:31,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:46:31,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1249107897, now seen corresponding path program 1 times [2021-08-25 21:46:31,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:46:31,683 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037242584] [2021-08-25 21:46:31,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:46:31,683 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:46:31,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:46:31,837 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 337 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2021-08-25 21:46:31,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:46:31,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037242584] [2021-08-25 21:46:31,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037242584] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:46:31,837 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:46:31,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:46:31,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068017035] [2021-08-25 21:46:31,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:46:31,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:46:31,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:46:31,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:46:31,839 INFO L87 Difference]: Start difference. First operand 9642 states and 11704 transitions. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 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 21:46:32,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:46:32,507 INFO L93 Difference]: Finished difference Result 17786 states and 21583 transitions. [2021-08-25 21:46:32,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:46:32,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 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 417 [2021-08-25 21:46:32,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:46:32,519 INFO L225 Difference]: With dead ends: 17786 [2021-08-25 21:46:32,519 INFO L226 Difference]: Without dead ends: 7594 [2021-08-25 21:46:32,525 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:46:32,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7594 states. [2021-08-25 21:46:32,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7594 to 6673. [2021-08-25 21:46:32,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6673 states, 6672 states have (on average 1.15302757793765) internal successors, (7693), 6672 states have internal predecessors, (7693), 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 21:46:32,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6673 states to 6673 states and 7693 transitions. [2021-08-25 21:46:32,593 INFO L78 Accepts]: Start accepts. Automaton has 6673 states and 7693 transitions. Word has length 417 [2021-08-25 21:46:32,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:46:32,593 INFO L470 AbstractCegarLoop]: Abstraction has 6673 states and 7693 transitions. [2021-08-25 21:46:32,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 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 21:46:32,594 INFO L276 IsEmpty]: Start isEmpty. Operand 6673 states and 7693 transitions. [2021-08-25 21:46:32,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2021-08-25 21:46:32,607 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:46:32,607 INFO L512 BasicCegarLoop]: trace histogram [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, 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, 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 21:46:32,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-25 21:46:32,608 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:46:32,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:46:32,608 INFO L82 PathProgramCache]: Analyzing trace with hash 127474750, now seen corresponding path program 1 times [2021-08-25 21:46:32,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:46:32,608 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451472218] [2021-08-25 21:46:32,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:46:32,609 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:46:32,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:46:32,733 INFO L134 CoverageAnalysis]: Checked inductivity of 673 backedges. 504 proven. 0 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2021-08-25 21:46:32,733 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:46:32,733 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451472218] [2021-08-25 21:46:32,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451472218] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:46:32,734 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:46:32,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:46:32,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301509423] [2021-08-25 21:46:32,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:46:32,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:46:32,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:46:32,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:46:32,735 INFO L87 Difference]: Start difference. First operand 6673 states and 7693 transitions. Second operand has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 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 21:46:33,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:46:33,445 INFO L93 Difference]: Finished difference Result 16487 states and 18944 transitions. [2021-08-25 21:46:33,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:46:33,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 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 481 [2021-08-25 21:46:33,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:46:33,461 INFO L225 Difference]: With dead ends: 16487 [2021-08-25 21:46:33,461 INFO L226 Difference]: Without dead ends: 9816 [2021-08-25 21:46:33,468 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:46:33,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9816 states. [2021-08-25 21:46:33,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9816 to 9630. [2021-08-25 21:46:33,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9630 states, 9629 states have (on average 1.12753141551563) internal successors, (10857), 9629 states have internal predecessors, (10857), 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 21:46:33,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9630 states to 9630 states and 10857 transitions. [2021-08-25 21:46:33,577 INFO L78 Accepts]: Start accepts. Automaton has 9630 states and 10857 transitions. Word has length 481 [2021-08-25 21:46:33,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:46:33,578 INFO L470 AbstractCegarLoop]: Abstraction has 9630 states and 10857 transitions. [2021-08-25 21:46:33,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 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 21:46:33,578 INFO L276 IsEmpty]: Start isEmpty. Operand 9630 states and 10857 transitions. [2021-08-25 21:46:33,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2021-08-25 21:46:33,593 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:46:33,593 INFO L512 BasicCegarLoop]: trace histogram [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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:46:33,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-25 21:46:33,593 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:46:33,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:46:33,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1327732137, now seen corresponding path program 1 times [2021-08-25 21:46:33,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:46:33,594 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856225185] [2021-08-25 21:46:33,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:46:33,594 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:46:33,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:46:33,757 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 156 proven. 406 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2021-08-25 21:46:33,757 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:46:33,758 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856225185] [2021-08-25 21:46:33,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856225185] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 21:46:33,758 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1207003168] [2021-08-25 21:46:33,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:46:33,758 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:46:33,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 21:46:33,760 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 21:46:33,799 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 21:46:33,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:46:33,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 675 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-25 21:46:33,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 21:46:37,371 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 99 proven. 463 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2021-08-25 21:46:37,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1207003168] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 21:46:37,372 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-25 21:46:37,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-08-25 21:46:37,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136763011] [2021-08-25 21:46:37,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-25 21:46:37,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:46:37,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-25 21:46:37,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-08-25 21:46:37,374 INFO L87 Difference]: Start difference. First operand 9630 states and 10857 transitions. Second operand has 9 states, 9 states have (on average 66.55555555555556) internal successors, (599), 8 states have internal predecessors, (599), 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 21:46:40,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:46:40,878 INFO L93 Difference]: Finished difference Result 29961 states and 33808 transitions. [2021-08-25 21:46:40,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-25 21:46:40,879 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 66.55555555555556) internal successors, (599), 8 states have internal predecessors, (599), 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 491 [2021-08-25 21:46:40,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:46:40,901 INFO L225 Difference]: With dead ends: 29961 [2021-08-25 21:46:40,901 INFO L226 Difference]: Without dead ends: 20148 [2021-08-25 21:46:40,908 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 488 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 38.3ms TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-08-25 21:46:40,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20148 states. [2021-08-25 21:46:41,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20148 to 18290. [2021-08-25 21:46:41,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18290 states, 18289 states have (on average 1.1091913171851933) internal successors, (20286), 18289 states have internal predecessors, (20286), 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 21:46:41,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18290 states to 18290 states and 20286 transitions. [2021-08-25 21:46:41,081 INFO L78 Accepts]: Start accepts. Automaton has 18290 states and 20286 transitions. Word has length 491 [2021-08-25 21:46:41,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:46:41,081 INFO L470 AbstractCegarLoop]: Abstraction has 18290 states and 20286 transitions. [2021-08-25 21:46:41,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 66.55555555555556) internal successors, (599), 8 states have internal predecessors, (599), 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 21:46:41,082 INFO L276 IsEmpty]: Start isEmpty. Operand 18290 states and 20286 transitions. [2021-08-25 21:46:41,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2021-08-25 21:46:41,102 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:46:41,103 INFO L512 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:46:41,124 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 21:46:41,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-08-25 21:46:41,316 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:46:41,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:46:41,317 INFO L82 PathProgramCache]: Analyzing trace with hash -2045557513, now seen corresponding path program 1 times [2021-08-25 21:46:41,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:46:41,317 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106836765] [2021-08-25 21:46:41,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:46:41,318 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:46:41,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:46:41,436 INFO L134 CoverageAnalysis]: Checked inductivity of 810 backedges. 641 proven. 0 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2021-08-25 21:46:41,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:46:41,436 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106836765] [2021-08-25 21:46:41,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106836765] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:46:41,437 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:46:41,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:46:41,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758652797] [2021-08-25 21:46:41,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:46:41,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:46:41,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:46:41,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:46:41,439 INFO L87 Difference]: Start difference. First operand 18290 states and 20286 transitions. Second operand has 3 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 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 21:46:42,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:46:42,234 INFO L93 Difference]: Finished difference Result 38789 states and 43029 transitions. [2021-08-25 21:46:42,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:46:42,235 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 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 533 [2021-08-25 21:46:42,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:46:42,255 INFO L225 Difference]: With dead ends: 38789 [2021-08-25 21:46:42,256 INFO L226 Difference]: Without dead ends: 21237 [2021-08-25 21:46:42,268 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:46:42,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21237 states. [2021-08-25 21:46:42,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21237 to 19202. [2021-08-25 21:46:42,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19202 states, 19201 states have (on average 1.1082235300244778) internal successors, (21279), 19201 states have internal predecessors, (21279), 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 21:46:42,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19202 states to 19202 states and 21279 transitions. [2021-08-25 21:46:42,459 INFO L78 Accepts]: Start accepts. Automaton has 19202 states and 21279 transitions. Word has length 533 [2021-08-25 21:46:42,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:46:42,459 INFO L470 AbstractCegarLoop]: Abstraction has 19202 states and 21279 transitions. [2021-08-25 21:46:42,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 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 21:46:42,459 INFO L276 IsEmpty]: Start isEmpty. Operand 19202 states and 21279 transitions. [2021-08-25 21:46:42,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 588 [2021-08-25 21:46:42,481 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:46:42,482 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2021-08-25 21:46:42,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-25 21:46:42,482 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:46:42,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:46:42,483 INFO L82 PathProgramCache]: Analyzing trace with hash -1514815029, now seen corresponding path program 1 times [2021-08-25 21:46:42,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:46:42,483 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968394818] [2021-08-25 21:46:42,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:46:42,483 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:46:42,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:46:42,612 INFO L134 CoverageAnalysis]: Checked inductivity of 1091 backedges. 817 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2021-08-25 21:46:42,613 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:46:42,613 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968394818] [2021-08-25 21:46:42,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968394818] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:46:42,613 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:46:42,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:46:42,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731138863] [2021-08-25 21:46:42,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:46:42,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:46:42,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:46:42,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:46:42,617 INFO L87 Difference]: Start difference. First operand 19202 states and 21279 transitions. Second operand has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 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 21:46:43,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:46:43,398 INFO L93 Difference]: Finished difference Result 39702 states and 43980 transitions. [2021-08-25 21:46:43,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:46:43,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 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 587 [2021-08-25 21:46:43,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:46:43,419 INFO L225 Difference]: With dead ends: 39702 [2021-08-25 21:46:43,419 INFO L226 Difference]: Without dead ends: 21238 [2021-08-25 21:46:43,431 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:46:43,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21238 states. [2021-08-25 21:46:43,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21238 to 19202. [2021-08-25 21:46:43,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19202 states, 19201 states have (on average 1.1082235300244778) internal successors, (21279), 19201 states have internal predecessors, (21279), 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 21:46:43,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19202 states to 19202 states and 21279 transitions. [2021-08-25 21:46:43,615 INFO L78 Accepts]: Start accepts. Automaton has 19202 states and 21279 transitions. Word has length 587 [2021-08-25 21:46:43,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:46:43,616 INFO L470 AbstractCegarLoop]: Abstraction has 19202 states and 21279 transitions. [2021-08-25 21:46:43,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 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 21:46:43,616 INFO L276 IsEmpty]: Start isEmpty. Operand 19202 states and 21279 transitions. [2021-08-25 21:46:43,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 606 [2021-08-25 21:46:43,635 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:46:43,636 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2021-08-25 21:46:43,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-08-25 21:46:43,636 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:46:43,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:46:43,636 INFO L82 PathProgramCache]: Analyzing trace with hash 1555234423, now seen corresponding path program 1 times [2021-08-25 21:46:43,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:46:43,637 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391556126] [2021-08-25 21:46:43,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:46:43,637 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:46:43,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:46:43,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1120 backedges. 720 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2021-08-25 21:46:43,805 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:46:43,805 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391556126] [2021-08-25 21:46:43,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391556126] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:46:43,805 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:46:43,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-25 21:46:43,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485057205] [2021-08-25 21:46:43,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 21:46:43,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:46:43,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 21:46:43,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 21:46:43,807 INFO L87 Difference]: Start difference. First operand 19202 states and 21279 transitions. Second operand has 4 states, 4 states have (on average 72.25) internal successors, (289), 4 states have internal predecessors, (289), 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 21:46:44,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:46:44,952 INFO L93 Difference]: Finished difference Result 45410 states and 50365 transitions. [2021-08-25 21:46:44,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 21:46:44,953 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 72.25) internal successors, (289), 4 states have internal predecessors, (289), 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 605 [2021-08-25 21:46:44,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:46:44,980 INFO L225 Difference]: With dead ends: 45410 [2021-08-25 21:46:44,980 INFO L226 Difference]: Without dead ends: 26946 [2021-08-25 21:46:44,994 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 21:46:45,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26946 states. [2021-08-25 21:46:45,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26946 to 22334. [2021-08-25 21:46:45,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22334 states, 22333 states have (on average 1.107329960148659) internal successors, (24730), 22333 states have internal predecessors, (24730), 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 21:46:45,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22334 states to 22334 states and 24730 transitions. [2021-08-25 21:46:45,233 INFO L78 Accepts]: Start accepts. Automaton has 22334 states and 24730 transitions. Word has length 605 [2021-08-25 21:46:45,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:46:45,233 INFO L470 AbstractCegarLoop]: Abstraction has 22334 states and 24730 transitions. [2021-08-25 21:46:45,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 72.25) internal successors, (289), 4 states have internal predecessors, (289), 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 21:46:45,233 INFO L276 IsEmpty]: Start isEmpty. Operand 22334 states and 24730 transitions. [2021-08-25 21:46:45,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 652 [2021-08-25 21:46:45,253 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:46:45,254 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:46:45,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-08-25 21:46:45,254 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:46:45,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:46:45,255 INFO L82 PathProgramCache]: Analyzing trace with hash 1848210366, now seen corresponding path program 1 times [2021-08-25 21:46:45,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:46:45,255 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891257884] [2021-08-25 21:46:45,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:46:45,255 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:46:45,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:46:45,451 INFO L134 CoverageAnalysis]: Checked inductivity of 1292 backedges. 1012 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2021-08-25 21:46:45,452 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:46:45,452 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891257884] [2021-08-25 21:46:45,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891257884] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:46:45,452 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:46:45,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:46:45,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192681959] [2021-08-25 21:46:45,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 21:46:45,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:46:45,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 21:46:45,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 21:46:45,454 INFO L87 Difference]: Start difference. First operand 22334 states and 24730 transitions. Second operand has 4 states, 4 states have (on average 98.25) internal successors, (393), 3 states have internal predecessors, (393), 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 21:46:46,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:46:46,596 INFO L93 Difference]: Finished difference Result 54624 states and 60325 transitions. [2021-08-25 21:46:46,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 21:46:46,596 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 98.25) internal successors, (393), 3 states have internal predecessors, (393), 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 651 [2021-08-25 21:46:46,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:46:46,630 INFO L225 Difference]: With dead ends: 54624 [2021-08-25 21:46:46,631 INFO L226 Difference]: Without dead ends: 33028 [2021-08-25 21:46:46,647 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 21:46:46,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33028 states. [2021-08-25 21:46:46,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33028 to 30808. [2021-08-25 21:46:46,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30808 states, 30807 states have (on average 1.100431720063622) internal successors, (33901), 30807 states have internal predecessors, (33901), 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 21:46:47,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30808 states to 30808 states and 33901 transitions. [2021-08-25 21:46:47,012 INFO L78 Accepts]: Start accepts. Automaton has 30808 states and 33901 transitions. Word has length 651 [2021-08-25 21:46:47,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:46:47,013 INFO L470 AbstractCegarLoop]: Abstraction has 30808 states and 33901 transitions. [2021-08-25 21:46:47,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 98.25) internal successors, (393), 3 states have internal predecessors, (393), 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 21:46:47,013 INFO L276 IsEmpty]: Start isEmpty. Operand 30808 states and 33901 transitions. [2021-08-25 21:46:47,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 668 [2021-08-25 21:46:47,043 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:46:47,044 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:46:47,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-08-25 21:46:47,044 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:46:47,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:46:47,044 INFO L82 PathProgramCache]: Analyzing trace with hash 752097309, now seen corresponding path program 1 times [2021-08-25 21:46:47,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:46:47,045 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982553492] [2021-08-25 21:46:47,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:46:47,045 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:46:47,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:46:47,217 INFO L134 CoverageAnalysis]: Checked inductivity of 1336 backedges. 979 proven. 64 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2021-08-25 21:46:47,218 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:46:47,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982553492] [2021-08-25 21:46:47,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982553492] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 21:46:47,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1285920395] [2021-08-25 21:46:47,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:46:47,219 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:46:47,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 21:46:47,220 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 21:46:47,285 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 21:46:47,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:46:47,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 875 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-25 21:46:47,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 21:46:49,202 INFO L134 CoverageAnalysis]: Checked inductivity of 1336 backedges. 1043 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2021-08-25 21:46:49,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1285920395] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:46:49,202 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 21:46:49,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-08-25 21:46:49,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635187042] [2021-08-25 21:46:49,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:46:49,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:46:49,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:46:49,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-25 21:46:49,204 INFO L87 Difference]: Start difference. First operand 30808 states and 33901 transitions. Second operand has 3 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 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 21:46:49,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:46:49,918 INFO L93 Difference]: Finished difference Result 59786 states and 65796 transitions. [2021-08-25 21:46:49,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:46:49,919 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 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 667 [2021-08-25 21:46:49,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:46:49,949 INFO L225 Difference]: With dead ends: 59786 [2021-08-25 21:46:49,949 INFO L226 Difference]: Without dead ends: 31928 [2021-08-25 21:46:49,965 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 670 GetRequests, 666 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 17.1ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-25 21:46:49,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31928 states. [2021-08-25 21:46:50,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31928 to 30072. [2021-08-25 21:46:50,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30072 states, 30071 states have (on average 1.0964716836819528) internal successors, (32972), 30071 states have internal predecessors, (32972), 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 21:46:50,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30072 states to 30072 states and 32972 transitions. [2021-08-25 21:46:50,283 INFO L78 Accepts]: Start accepts. Automaton has 30072 states and 32972 transitions. Word has length 667 [2021-08-25 21:46:50,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:46:50,283 INFO L470 AbstractCegarLoop]: Abstraction has 30072 states and 32972 transitions. [2021-08-25 21:46:50,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 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 21:46:50,283 INFO L276 IsEmpty]: Start isEmpty. Operand 30072 states and 32972 transitions. [2021-08-25 21:46:50,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 813 [2021-08-25 21:46:50,312 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:46:50,312 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:46:50,331 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 21:46:50,524 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,SelfDestructingSolverStorable17 [2021-08-25 21:46:50,526 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:46:50,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:46:50,527 INFO L82 PathProgramCache]: Analyzing trace with hash -2126317674, now seen corresponding path program 1 times [2021-08-25 21:46:50,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:46:50,527 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378348656] [2021-08-25 21:46:50,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:46:50,527 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:46:50,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:46:50,709 INFO L134 CoverageAnalysis]: Checked inductivity of 1936 backedges. 1061 proven. 0 refuted. 0 times theorem prover too weak. 875 trivial. 0 not checked. [2021-08-25 21:46:50,710 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:46:50,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378348656] [2021-08-25 21:46:50,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378348656] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:46:50,710 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:46:50,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 21:46:50,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304426126] [2021-08-25 21:46:50,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:46:50,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:46:50,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:46:50,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:46:50,712 INFO L87 Difference]: Start difference. First operand 30072 states and 32972 transitions. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 2 states have internal predecessors, (306), 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 21:46:51,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:46:51,209 INFO L93 Difference]: Finished difference Result 57560 states and 63188 transitions. [2021-08-25 21:46:51,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:46:51,210 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 2 states have internal predecessors, (306), 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 812 [2021-08-25 21:46:51,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:46:51,241 INFO L225 Difference]: With dead ends: 57560 [2021-08-25 21:46:51,241 INFO L226 Difference]: Without dead ends: 29698 [2021-08-25 21:46:51,257 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:46:51,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29698 states. [2021-08-25 21:46:51,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29698 to 29694. [2021-08-25 21:46:51,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29694 states, 29693 states have (on average 1.0959485400599467) internal successors, (32542), 29693 states have internal predecessors, (32542), 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 21:46:51,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29694 states to 29694 states and 32542 transitions. [2021-08-25 21:46:51,590 INFO L78 Accepts]: Start accepts. Automaton has 29694 states and 32542 transitions. Word has length 812 [2021-08-25 21:46:51,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:46:51,590 INFO L470 AbstractCegarLoop]: Abstraction has 29694 states and 32542 transitions. [2021-08-25 21:46:51,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 2 states have internal predecessors, (306), 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 21:46:51,590 INFO L276 IsEmpty]: Start isEmpty. Operand 29694 states and 32542 transitions. [2021-08-25 21:46:51,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 842 [2021-08-25 21:46:51,619 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:46:51,619 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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] [2021-08-25 21:46:51,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-08-25 21:46:51,619 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:46:51,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:46:51,620 INFO L82 PathProgramCache]: Analyzing trace with hash -739284744, now seen corresponding path program 1 times [2021-08-25 21:46:51,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:46:51,620 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516661282] [2021-08-25 21:46:51,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:46:51,620 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:46:51,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:46:51,806 INFO L134 CoverageAnalysis]: Checked inductivity of 2335 backedges. 1519 proven. 0 refuted. 0 times theorem prover too weak. 816 trivial. 0 not checked. [2021-08-25 21:46:51,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:46:51,806 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516661282] [2021-08-25 21:46:51,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516661282] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:46:51,807 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:46:51,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:46:51,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111338381] [2021-08-25 21:46:51,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 21:46:51,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:46:51,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 21:46:51,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 21:46:51,809 INFO L87 Difference]: Start difference. First operand 29694 states and 32542 transitions. Second operand has 4 states, 4 states have (on average 99.5) internal successors, (398), 3 states have internal predecessors, (398), 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 21:46:53,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:46:53,030 INFO L93 Difference]: Finished difference Result 61430 states and 67474 transitions. [2021-08-25 21:46:53,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 21:46:53,031 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 99.5) internal successors, (398), 3 states have internal predecessors, (398), 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 841 [2021-08-25 21:46:53,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:46:53,065 INFO L225 Difference]: With dead ends: 61430 [2021-08-25 21:46:53,065 INFO L226 Difference]: Without dead ends: 33396 [2021-08-25 21:46:53,079 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 21:46:53,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33396 states. [2021-08-25 21:46:53,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33396 to 27672. [2021-08-25 21:46:53,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27672 states, 27671 states have (on average 1.0930577138520472) internal successors, (30246), 27671 states have internal predecessors, (30246), 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 21:46:53,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27672 states to 27672 states and 30246 transitions. [2021-08-25 21:46:53,341 INFO L78 Accepts]: Start accepts. Automaton has 27672 states and 30246 transitions. Word has length 841 [2021-08-25 21:46:53,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:46:53,342 INFO L470 AbstractCegarLoop]: Abstraction has 27672 states and 30246 transitions. [2021-08-25 21:46:53,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 99.5) internal successors, (398), 3 states have internal predecessors, (398), 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 21:46:53,342 INFO L276 IsEmpty]: Start isEmpty. Operand 27672 states and 30246 transitions. [2021-08-25 21:46:53,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 956 [2021-08-25 21:46:53,375 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:46:53,375 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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] [2021-08-25 21:46:53,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-08-25 21:46:53,376 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:46:53,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:46:53,376 INFO L82 PathProgramCache]: Analyzing trace with hash -9501416, now seen corresponding path program 1 times [2021-08-25 21:46:53,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:46:53,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542049345] [2021-08-25 21:46:53,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:46:53,376 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:46:53,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:46:53,608 INFO L134 CoverageAnalysis]: Checked inductivity of 3075 backedges. 2234 proven. 0 refuted. 0 times theorem prover too weak. 841 trivial. 0 not checked. [2021-08-25 21:46:53,609 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:46:53,609 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542049345] [2021-08-25 21:46:53,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542049345] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:46:53,609 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:46:53,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-25 21:46:53,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208633356] [2021-08-25 21:46:53,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 21:46:53,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:46:53,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 21:46:53,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 21:46:53,611 INFO L87 Difference]: Start difference. First operand 27672 states and 30246 transitions. Second operand has 4 states, 4 states have (on average 121.75) internal successors, (487), 4 states have internal predecessors, (487), 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 21:46:54,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:46:54,910 INFO L93 Difference]: Finished difference Result 62536 states and 68408 transitions. [2021-08-25 21:46:54,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 21:46:54,910 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 121.75) internal successors, (487), 4 states have internal predecessors, (487), 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 955 [2021-08-25 21:46:54,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:46:54,945 INFO L225 Difference]: With dead ends: 62536 [2021-08-25 21:46:54,945 INFO L226 Difference]: Without dead ends: 36892 [2021-08-25 21:46:54,964 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 21:46:54,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36892 states. [2021-08-25 21:46:55,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36892 to 28971. [2021-08-25 21:46:55,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28971 states, 28970 states have (on average 1.0910597169485674) internal successors, (31608), 28970 states have internal predecessors, (31608), 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 21:46:55,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28971 states to 28971 states and 31608 transitions. [2021-08-25 21:46:55,341 INFO L78 Accepts]: Start accepts. Automaton has 28971 states and 31608 transitions. Word has length 955 [2021-08-25 21:46:55,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:46:55,342 INFO L470 AbstractCegarLoop]: Abstraction has 28971 states and 31608 transitions. [2021-08-25 21:46:55,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 121.75) internal successors, (487), 4 states have internal predecessors, (487), 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 21:46:55,342 INFO L276 IsEmpty]: Start isEmpty. Operand 28971 states and 31608 transitions. [2021-08-25 21:46:55,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 993 [2021-08-25 21:46:55,376 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:46:55,377 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-08-25 21:46:55,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-08-25 21:46:55,377 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:46:55,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:46:55,378 INFO L82 PathProgramCache]: Analyzing trace with hash -86524809, now seen corresponding path program 1 times [2021-08-25 21:46:55,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:46:55,378 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846398196] [2021-08-25 21:46:55,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:46:55,378 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:46:55,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:46:55,780 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 1460 proven. 0 refuted. 0 times theorem prover too weak. 1660 trivial. 0 not checked. [2021-08-25 21:46:55,781 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:46:55,781 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846398196] [2021-08-25 21:46:55,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846398196] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:46:55,781 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:46:55,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-25 21:46:55,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674824473] [2021-08-25 21:46:55,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-25 21:46:55,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:46:55,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-25 21:46:55,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-08-25 21:46:55,786 INFO L87 Difference]: Start difference. First operand 28971 states and 31608 transitions. Second operand has 7 states, 7 states have (on average 59.57142857142857) internal successors, (417), 6 states have internal predecessors, (417), 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 21:46:57,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:46:57,357 INFO L93 Difference]: Finished difference Result 60834 states and 66299 transitions. [2021-08-25 21:46:57,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-25 21:46:57,359 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 59.57142857142857) internal successors, (417), 6 states have internal predecessors, (417), 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 992 [2021-08-25 21:46:57,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:46:57,393 INFO L225 Difference]: With dead ends: 60834 [2021-08-25 21:46:57,393 INFO L226 Difference]: Without dead ends: 32601 [2021-08-25 21:46:57,410 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 97.2ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-08-25 21:46:57,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32601 states. [2021-08-25 21:46:57,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32601 to 29155. [2021-08-25 21:46:57,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29155 states, 29154 states have (on average 1.0906908142964944) internal successors, (31798), 29154 states have internal predecessors, (31798), 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 21:46:57,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29155 states to 29155 states and 31798 transitions. [2021-08-25 21:46:57,717 INFO L78 Accepts]: Start accepts. Automaton has 29155 states and 31798 transitions. Word has length 992 [2021-08-25 21:46:57,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:46:57,717 INFO L470 AbstractCegarLoop]: Abstraction has 29155 states and 31798 transitions. [2021-08-25 21:46:57,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 59.57142857142857) internal successors, (417), 6 states have internal predecessors, (417), 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 21:46:57,717 INFO L276 IsEmpty]: Start isEmpty. Operand 29155 states and 31798 transitions. [2021-08-25 21:46:57,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1024 [2021-08-25 21:46:57,749 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:46:57,750 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:46:57,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-08-25 21:46:57,750 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:46:57,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:46:57,750 INFO L82 PathProgramCache]: Analyzing trace with hash -1662304432, now seen corresponding path program 1 times [2021-08-25 21:46:57,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:46:57,751 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68682145] [2021-08-25 21:46:57,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:46:57,751 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:46:57,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:46:57,968 INFO L134 CoverageAnalysis]: Checked inductivity of 3217 backedges. 1557 proven. 0 refuted. 0 times theorem prover too weak. 1660 trivial. 0 not checked. [2021-08-25 21:46:57,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:46:57,968 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68682145] [2021-08-25 21:46:57,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68682145] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:46:57,968 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:46:57,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:46:57,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298611740] [2021-08-25 21:46:57,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 21:46:57,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:46:57,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 21:46:57,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 21:46:57,972 INFO L87 Difference]: Start difference. First operand 29155 states and 31798 transitions. Second operand has 4 states, 4 states have (on average 112.0) internal successors, (448), 3 states have internal predecessors, (448), 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 21:46:58,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:46:58,950 INFO L93 Difference]: Finished difference Result 59785 states and 65140 transitions. [2021-08-25 21:46:58,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 21:46:58,950 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 112.0) internal successors, (448), 3 states have internal predecessors, (448), 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 1023 [2021-08-25 21:46:58,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:46:58,973 INFO L225 Difference]: With dead ends: 59785 [2021-08-25 21:46:58,974 INFO L226 Difference]: Without dead ends: 30448 [2021-08-25 21:46:58,981 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 21:46:58,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30448 states. [2021-08-25 21:46:59,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30448 to 26211. [2021-08-25 21:46:59,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26211 states, 26210 states have (on average 1.0855780236550934) internal successors, (28453), 26210 states have internal predecessors, (28453), 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 21:46:59,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26211 states to 26211 states and 28453 transitions. [2021-08-25 21:46:59,209 INFO L78 Accepts]: Start accepts. Automaton has 26211 states and 28453 transitions. Word has length 1023 [2021-08-25 21:46:59,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:46:59,209 INFO L470 AbstractCegarLoop]: Abstraction has 26211 states and 28453 transitions. [2021-08-25 21:46:59,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 112.0) internal successors, (448), 3 states have internal predecessors, (448), 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 21:46:59,209 INFO L276 IsEmpty]: Start isEmpty. Operand 26211 states and 28453 transitions. [2021-08-25 21:46:59,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1073 [2021-08-25 21:46:59,239 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:46:59,240 INFO L512 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-08-25 21:46:59,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-08-25 21:46:59,240 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:46:59,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:46:59,240 INFO L82 PathProgramCache]: Analyzing trace with hash 1653793906, now seen corresponding path program 1 times [2021-08-25 21:46:59,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:46:59,240 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582080516] [2021-08-25 21:46:59,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:46:59,240 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:46:59,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:46:59,573 INFO L134 CoverageAnalysis]: Checked inductivity of 3778 backedges. 2002 proven. 151 refuted. 0 times theorem prover too weak. 1625 trivial. 0 not checked. [2021-08-25 21:46:59,574 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:46:59,574 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582080516] [2021-08-25 21:46:59,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582080516] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 21:46:59,574 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573447693] [2021-08-25 21:46:59,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:46:59,575 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:46:59,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 21:46:59,586 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 21:46:59,586 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 21:47:00,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:47:00,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 1390 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-25 21:47:00,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 21:47:03,077 INFO L134 CoverageAnalysis]: Checked inductivity of 3778 backedges. 2039 proven. 0 refuted. 0 times theorem prover too weak. 1739 trivial. 0 not checked. [2021-08-25 21:47:03,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573447693] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:47:03,077 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 21:47:03,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2021-08-25 21:47:03,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058902867] [2021-08-25 21:47:03,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 21:47:03,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:47:03,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 21:47:03,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-08-25 21:47:03,079 INFO L87 Difference]: Start difference. First operand 26211 states and 28453 transitions. Second operand has 4 states, 4 states have (on average 104.75) internal successors, (419), 3 states have internal predecessors, (419), 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 21:47:03,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:47:03,883 INFO L93 Difference]: Finished difference Result 51869 states and 56327 transitions. [2021-08-25 21:47:03,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 21:47:03,883 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 104.75) internal successors, (419), 3 states have internal predecessors, (419), 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 1072 [2021-08-25 21:47:03,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:47:03,908 INFO L225 Difference]: With dead ends: 51869 [2021-08-25 21:47:03,908 INFO L226 Difference]: Without dead ends: 26209 [2021-08-25 21:47:03,921 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1078 GetRequests, 1071 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 45.3ms TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-08-25 21:47:03,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26209 states. [2021-08-25 21:47:04,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26209 to 21788. [2021-08-25 21:47:04,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21788 states, 21787 states have (on average 1.0832147610960665) internal successors, (23600), 21787 states have internal predecessors, (23600), 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 21:47:04,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21788 states to 21788 states and 23600 transitions. [2021-08-25 21:47:04,123 INFO L78 Accepts]: Start accepts. Automaton has 21788 states and 23600 transitions. Word has length 1072 [2021-08-25 21:47:04,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:47:04,123 INFO L470 AbstractCegarLoop]: Abstraction has 21788 states and 23600 transitions. [2021-08-25 21:47:04,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 104.75) internal successors, (419), 3 states have internal predecessors, (419), 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 21:47:04,123 INFO L276 IsEmpty]: Start isEmpty. Operand 21788 states and 23600 transitions. [2021-08-25 21:47:04,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1100 [2021-08-25 21:47:04,219 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:47:04,219 INFO L512 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-08-25 21:47:04,238 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 21:47:04,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:47:04,420 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:47:04,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:47:04,421 INFO L82 PathProgramCache]: Analyzing trace with hash 1879384201, now seen corresponding path program 1 times [2021-08-25 21:47:04,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:47:04,421 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830574481] [2021-08-25 21:47:04,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:47:04,421 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:47:04,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:47:04,718 INFO L134 CoverageAnalysis]: Checked inductivity of 3945 backedges. 2896 proven. 0 refuted. 0 times theorem prover too weak. 1049 trivial. 0 not checked. [2021-08-25 21:47:04,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:47:04,719 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830574481] [2021-08-25 21:47:04,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830574481] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:47:04,719 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:47:04,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-25 21:47:04,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413700300] [2021-08-25 21:47:04,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 21:47:04,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:47:04,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 21:47:04,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 21:47:04,721 INFO L87 Difference]: Start difference. First operand 21788 states and 23600 transitions. Second operand has 4 states, 4 states have (on average 130.0) internal successors, (520), 4 states have internal predecessors, (520), 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 21:47:05,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:47:05,895 INFO L93 Difference]: Finished difference Result 48744 states and 52787 transitions. [2021-08-25 21:47:05,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 21:47:05,897 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 130.0) internal successors, (520), 4 states have internal predecessors, (520), 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 1099 [2021-08-25 21:47:05,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:47:05,921 INFO L225 Difference]: With dead ends: 48744 [2021-08-25 21:47:05,922 INFO L226 Difference]: Without dead ends: 26958 [2021-08-25 21:47:05,935 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 21:47:05,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26958 states. [2021-08-25 21:47:06,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26958 to 21420. [2021-08-25 21:47:06,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21420 states, 21419 states have (on average 1.0843176618889772) internal successors, (23225), 21419 states have internal predecessors, (23225), 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 21:47:06,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21420 states to 21420 states and 23225 transitions. [2021-08-25 21:47:06,148 INFO L78 Accepts]: Start accepts. Automaton has 21420 states and 23225 transitions. Word has length 1099 [2021-08-25 21:47:06,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:47:06,148 INFO L470 AbstractCegarLoop]: Abstraction has 21420 states and 23225 transitions. [2021-08-25 21:47:06,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 130.0) internal successors, (520), 4 states have internal predecessors, (520), 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 21:47:06,149 INFO L276 IsEmpty]: Start isEmpty. Operand 21420 states and 23225 transitions. [2021-08-25 21:47:06,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1273 [2021-08-25 21:47:06,173 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:47:06,173 INFO L512 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 4, 4, 4, 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] [2021-08-25 21:47:06,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-08-25 21:47:06,173 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:47:06,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:47:06,174 INFO L82 PathProgramCache]: Analyzing trace with hash -1547227736, now seen corresponding path program 1 times [2021-08-25 21:47:06,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:47:06,174 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130445435] [2021-08-25 21:47:06,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:47:06,174 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:47:06,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:47:06,404 INFO L134 CoverageAnalysis]: Checked inductivity of 5831 backedges. 2751 proven. 0 refuted. 0 times theorem prover too weak. 3080 trivial. 0 not checked. [2021-08-25 21:47:06,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:47:06,405 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130445435] [2021-08-25 21:47:06,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130445435] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:47:06,405 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:47:06,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:47:06,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261538574] [2021-08-25 21:47:06,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:47:06,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:47:06,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:47:06,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:47:06,407 INFO L87 Difference]: Start difference. First operand 21420 states and 23225 transitions. Second operand has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 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 21:47:07,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:47:07,061 INFO L93 Difference]: Finished difference Result 43028 states and 46734 transitions. [2021-08-25 21:47:07,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:47:07,062 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 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 1272 [2021-08-25 21:47:07,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:47:07,082 INFO L225 Difference]: With dead ends: 43028 [2021-08-25 21:47:07,083 INFO L226 Difference]: Without dead ends: 22162 [2021-08-25 21:47:07,095 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:47:07,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22162 states. [2021-08-25 21:47:07,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22162 to 21050. [2021-08-25 21:47:07,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21050 states, 21049 states have (on average 1.084279538220343) internal successors, (22823), 21049 states have internal predecessors, (22823), 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 21:47:07,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21050 states to 21050 states and 22823 transitions. [2021-08-25 21:47:07,285 INFO L78 Accepts]: Start accepts. Automaton has 21050 states and 22823 transitions. Word has length 1272 [2021-08-25 21:47:07,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:47:07,286 INFO L470 AbstractCegarLoop]: Abstraction has 21050 states and 22823 transitions. [2021-08-25 21:47:07,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 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 21:47:07,286 INFO L276 IsEmpty]: Start isEmpty. Operand 21050 states and 22823 transitions. [2021-08-25 21:47:07,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1287 [2021-08-25 21:47:07,310 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:47:07,310 INFO L512 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:47:07,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-08-25 21:47:07,310 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:47:07,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:47:07,311 INFO L82 PathProgramCache]: Analyzing trace with hash -491479756, now seen corresponding path program 1 times [2021-08-25 21:47:07,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:47:07,311 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131193062] [2021-08-25 21:47:07,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:47:07,311 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:47:07,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:47:07,613 INFO L134 CoverageAnalysis]: Checked inductivity of 5935 backedges. 3255 proven. 0 refuted. 0 times theorem prover too weak. 2680 trivial. 0 not checked. [2021-08-25 21:47:07,613 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:47:07,613 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131193062] [2021-08-25 21:47:07,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131193062] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:47:07,614 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:47:07,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:47:07,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027726827] [2021-08-25 21:47:07,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:47:07,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:47:07,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:47:07,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:47:07,615 INFO L87 Difference]: Start difference. First operand 21050 states and 22823 transitions. Second operand has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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 21:47:08,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:47:08,243 INFO L93 Difference]: Finished difference Result 42098 states and 45647 transitions. [2021-08-25 21:47:08,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:47:08,244 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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 1286 [2021-08-25 21:47:08,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:47:08,264 INFO L225 Difference]: With dead ends: 42098 [2021-08-25 21:47:08,265 INFO L226 Difference]: Without dead ends: 21602 [2021-08-25 21:47:08,277 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:47:08,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21602 states. [2021-08-25 21:47:08,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21602 to 19760. [2021-08-25 21:47:08,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19760 states, 19759 states have (on average 1.080520269244395) internal successors, (21350), 19759 states have internal predecessors, (21350), 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 21:47:08,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19760 states to 19760 states and 21350 transitions. [2021-08-25 21:47:08,462 INFO L78 Accepts]: Start accepts. Automaton has 19760 states and 21350 transitions. Word has length 1286 [2021-08-25 21:47:08,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:47:08,463 INFO L470 AbstractCegarLoop]: Abstraction has 19760 states and 21350 transitions. [2021-08-25 21:47:08,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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 21:47:08,463 INFO L276 IsEmpty]: Start isEmpty. Operand 19760 states and 21350 transitions. [2021-08-25 21:47:08,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1444 [2021-08-25 21:47:08,489 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:47:08,489 INFO L512 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 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] [2021-08-25 21:47:08,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-08-25 21:47:08,490 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:47:08,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:47:08,490 INFO L82 PathProgramCache]: Analyzing trace with hash 457319576, now seen corresponding path program 1 times [2021-08-25 21:47:08,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:47:08,490 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081169306] [2021-08-25 21:47:08,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:47:08,490 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:47:08,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:47:08,806 INFO L134 CoverageAnalysis]: Checked inductivity of 7769 backedges. 4684 proven. 247 refuted. 0 times theorem prover too weak. 2838 trivial. 0 not checked. [2021-08-25 21:47:08,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:47:08,806 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081169306] [2021-08-25 21:47:08,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081169306] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 21:47:08,806 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [111345430] [2021-08-25 21:47:08,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:47:08,807 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:47:08,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 21:47:08,808 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 21:47:08,830 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 21:47:09,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:47:09,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 1873 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-25 21:47:09,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 21:47:12,921 INFO L134 CoverageAnalysis]: Checked inductivity of 7769 backedges. 4547 proven. 0 refuted. 0 times theorem prover too weak. 3222 trivial. 0 not checked. [2021-08-25 21:47:12,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [111345430] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:47:12,921 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 21:47:12,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-08-25 21:47:12,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714185807] [2021-08-25 21:47:12,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:47:12,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:47:12,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:47:12,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-25 21:47:12,924 INFO L87 Difference]: Start difference. First operand 19760 states and 21350 transitions. Second operand has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 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 21:47:13,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:47:13,427 INFO L93 Difference]: Finished difference Result 30478 states and 32750 transitions. [2021-08-25 21:47:13,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:47:13,428 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 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 1443 [2021-08-25 21:47:13,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:47:13,429 INFO L225 Difference]: With dead ends: 30478 [2021-08-25 21:47:13,429 INFO L226 Difference]: Without dead ends: 0 [2021-08-25 21:47:13,438 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1447 GetRequests, 1444 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.9ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-25 21:47:13,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-25 21:47:13,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-25 21:47:13,438 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 21:47:13,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-25 21:47:13,439 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1443 [2021-08-25 21:47:13,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:47:13,439 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-25 21:47:13,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 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 21:47:13,439 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-25 21:47:13,439 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-25 21:47:13,441 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-25 21:47:13,461 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-08-25 21:47:13,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-08-25 21:47:13,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-25 21:47:13,649 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 21:47:14,748 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 21:47:15,726 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 21:47:20,965 INFO L857 garLoopResultBuilder]: For program point L498(lines 498 509) no Hoare annotation was computed. [2021-08-25 21:47:20,965 INFO L857 garLoopResultBuilder]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,965 INFO L857 garLoopResultBuilder]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2021-08-25 21:47:20,966 INFO L857 garLoopResultBuilder]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,966 INFO L857 garLoopResultBuilder]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,966 INFO L857 garLoopResultBuilder]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,966 INFO L857 garLoopResultBuilder]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,966 INFO L857 garLoopResultBuilder]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,966 INFO L857 garLoopResultBuilder]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,966 INFO L857 garLoopResultBuilder]: For program point L169(line 169) no Hoare annotation was computed. [2021-08-25 21:47:20,966 INFO L857 garLoopResultBuilder]: For program point L103(line 103) no Hoare annotation was computed. [2021-08-25 21:47:20,966 INFO L857 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2021-08-25 21:47:20,966 INFO L857 garLoopResultBuilder]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,966 INFO L857 garLoopResultBuilder]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,966 INFO L857 garLoopResultBuilder]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,967 INFO L857 garLoopResultBuilder]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,967 INFO L857 garLoopResultBuilder]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,967 INFO L857 garLoopResultBuilder]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,967 INFO L857 garLoopResultBuilder]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,967 INFO L857 garLoopResultBuilder]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,967 INFO L857 garLoopResultBuilder]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,967 INFO L857 garLoopResultBuilder]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,967 INFO L857 garLoopResultBuilder]: For program point L172(line 172) no Hoare annotation was computed. [2021-08-25 21:47:20,967 INFO L857 garLoopResultBuilder]: For program point L106(line 106) no Hoare annotation was computed. [2021-08-25 21:47:20,967 INFO L857 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2021-08-25 21:47:20,968 INFO L857 garLoopResultBuilder]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,968 INFO L857 garLoopResultBuilder]: For program point L768(lines 768 778) no Hoare annotation was computed. [2021-08-25 21:47:20,968 INFO L857 garLoopResultBuilder]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2021-08-25 21:47:20,968 INFO L857 garLoopResultBuilder]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,968 INFO L857 garLoopResultBuilder]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,968 INFO L857 garLoopResultBuilder]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,968 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,968 INFO L857 garLoopResultBuilder]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,968 INFO L857 garLoopResultBuilder]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,969 INFO L857 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-08-25 21:47:20,969 INFO L857 garLoopResultBuilder]: For program point L109(line 109) no Hoare annotation was computed. [2021-08-25 21:47:20,969 INFO L857 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2021-08-25 21:47:20,969 INFO L857 garLoopResultBuilder]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,969 INFO L857 garLoopResultBuilder]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,969 INFO L857 garLoopResultBuilder]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,969 INFO L853 garLoopResultBuilder]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse4 (< ~a29~0 276)) (.cse5 (<= 261 ~a29~0)) (.cse3 (<= ~a23~0 312)) (.cse8 (<= ~a25~0 9)) (.cse15 (<= ~a23~0 600000)) (.cse0 (= ~a25~0 12)) (.cse13 (<= ~a23~0 599997)) (.cse11 (<= ~a23~0 138)) (.cse2 (= ~a4~0 1)) (.cse14 (= ~a25~0 10)) (.cse12 (= ~a25~0 13)) (.cse7 (<= (+ ~a23~0 43) 0)) (.cse9 (< 140 ~a29~0)) (.cse6 (= ~a4~0 0)) (.cse10 (<= ~a29~0 274)) (.cse1 (= ~a3~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse0 .cse5 .cse6 .cse1) (and .cse7 .cse5 .cse6 .cse1 .cse8) (and .cse0 .cse9 .cse6 .cse10 .cse1) (and .cse4 .cse9 .cse5 .cse11 .cse2) (and .cse12 .cse9 (<= ~a29~0 245) .cse1 .cse2 (= ~a8~0 15)) (and .cse13 .cse1 .cse2 .cse14) (and .cse7 .cse6 (<= (+ ~a29~0 554036) 0) .cse1 .cse8 (<= 0 (+ 580293 ~a29~0))) (and (<= (+ ~a23~0 55) 0) (<= 0 (+ ~a29~0 580294)) .cse6 .cse1 (<= ~a29~0 220)) (and (or (and .cse9 .cse10 .cse1 .cse14) (and .cse9 .cse10 .cse1 .cse8)) .cse2) (and .cse4 .cse5 .cse1 .cse2 .cse8) (and .cse15 .cse9 (<= ~a25~0 11) .cse1 .cse2) (and .cse1 .cse2 .cse3 .cse8) (and .cse12 .cse9 .cse1 .cse2 (<= ~a29~0 232)) (and .cse9 .cse1 .cse11 .cse2) (and .cse15 .cse0 .cse9 .cse1 .cse2) (and .cse12 .cse13 .cse1 .cse2) (and .cse11 .cse2 .cse14) (and .cse12 .cse7 .cse9 .cse6 .cse10 .cse1))) [2021-08-25 21:47:20,970 INFO L857 garLoopResultBuilder]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,970 INFO L857 garLoopResultBuilder]: For program point L705(lines 705 715) no Hoare annotation was computed. [2021-08-25 21:47:20,970 INFO L857 garLoopResultBuilder]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2021-08-25 21:47:20,970 INFO L857 garLoopResultBuilder]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,970 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,970 INFO L857 garLoopResultBuilder]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,970 INFO L857 garLoopResultBuilder]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,970 INFO L857 garLoopResultBuilder]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,970 INFO L857 garLoopResultBuilder]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,970 INFO L857 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2021-08-25 21:47:20,971 INFO L857 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-08-25 21:47:20,971 INFO L857 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2021-08-25 21:47:20,971 INFO L860 garLoopResultBuilder]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2021-08-25 21:47:20,971 INFO L857 garLoopResultBuilder]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,971 INFO L857 garLoopResultBuilder]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,971 INFO L857 garLoopResultBuilder]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,971 INFO L857 garLoopResultBuilder]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,971 INFO L857 garLoopResultBuilder]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,971 INFO L857 garLoopResultBuilder]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,971 INFO L857 garLoopResultBuilder]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,972 INFO L857 garLoopResultBuilder]: For program point L181(line 181) no Hoare annotation was computed. [2021-08-25 21:47:20,972 INFO L857 garLoopResultBuilder]: For program point L115(line 115) no Hoare annotation was computed. [2021-08-25 21:47:20,972 INFO L857 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2021-08-25 21:47:20,972 INFO L857 garLoopResultBuilder]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,972 INFO L857 garLoopResultBuilder]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,972 INFO L857 garLoopResultBuilder]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,972 INFO L857 garLoopResultBuilder]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,972 INFO L857 garLoopResultBuilder]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,972 INFO L857 garLoopResultBuilder]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,972 INFO L857 garLoopResultBuilder]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,972 INFO L857 garLoopResultBuilder]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,972 INFO L857 garLoopResultBuilder]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,972 INFO L857 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2021-08-25 21:47:20,972 INFO L857 garLoopResultBuilder]: For program point L118(line 118) no Hoare annotation was computed. [2021-08-25 21:47:20,972 INFO L857 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2021-08-25 21:47:20,972 INFO L857 garLoopResultBuilder]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,973 INFO L853 garLoopResultBuilder]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse4 (< ~a29~0 276)) (.cse5 (<= 261 ~a29~0)) (.cse3 (<= ~a23~0 312)) (.cse8 (<= ~a25~0 9)) (.cse15 (<= ~a23~0 600000)) (.cse0 (= ~a25~0 12)) (.cse13 (<= ~a23~0 599997)) (.cse11 (<= ~a23~0 138)) (.cse2 (= ~a4~0 1)) (.cse14 (= ~a25~0 10)) (.cse12 (= ~a25~0 13)) (.cse7 (<= (+ ~a23~0 43) 0)) (.cse9 (< 140 ~a29~0)) (.cse6 (= ~a4~0 0)) (.cse10 (<= ~a29~0 274)) (.cse1 (= ~a3~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse0 .cse5 .cse6 .cse1) (and .cse7 .cse5 .cse6 .cse1 .cse8) (and .cse0 .cse9 .cse6 .cse10 .cse1) (and .cse4 .cse9 .cse5 .cse11 .cse2) (and .cse12 .cse9 (<= ~a29~0 245) .cse1 .cse2 (= ~a8~0 15)) (and .cse13 .cse1 .cse2 .cse14) (and .cse7 .cse6 (<= (+ ~a29~0 554036) 0) .cse1 .cse8 (<= 0 (+ 580293 ~a29~0))) (and (<= (+ ~a23~0 55) 0) (<= 0 (+ ~a29~0 580294)) .cse6 .cse1 (<= ~a29~0 220)) (and (or (and .cse9 .cse10 .cse1 .cse14) (and .cse9 .cse10 .cse1 .cse8)) .cse2) (and .cse4 .cse5 .cse1 .cse2 .cse8) (and .cse15 .cse9 (<= ~a25~0 11) .cse1 .cse2) (and .cse1 .cse2 .cse3 .cse8) (and .cse12 .cse9 .cse1 .cse2 (<= ~a29~0 232)) (and .cse9 .cse1 .cse11 .cse2) (and .cse15 .cse0 .cse9 .cse1 .cse2) (and .cse12 .cse13 .cse1 .cse2) (and .cse11 .cse2 .cse14) (and .cse12 .cse7 .cse9 .cse6 .cse10 .cse1))) [2021-08-25 21:47:20,973 INFO L857 garLoopResultBuilder]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,973 INFO L857 garLoopResultBuilder]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,973 INFO L857 garLoopResultBuilder]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,973 INFO L857 garLoopResultBuilder]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,973 INFO L857 garLoopResultBuilder]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,973 INFO L857 garLoopResultBuilder]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,973 INFO L857 garLoopResultBuilder]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,973 INFO L857 garLoopResultBuilder]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,973 INFO L857 garLoopResultBuilder]: For program point L187(line 187) no Hoare annotation was computed. [2021-08-25 21:47:20,973 INFO L857 garLoopResultBuilder]: For program point L121(line 121) no Hoare annotation was computed. [2021-08-25 21:47:20,973 INFO L857 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2021-08-25 21:47:20,973 INFO L857 garLoopResultBuilder]: For program point L980(lines 980 990) no Hoare annotation was computed. [2021-08-25 21:47:20,973 INFO L857 garLoopResultBuilder]: For program point L914(lines 914 924) no Hoare annotation was computed. [2021-08-25 21:47:20,973 INFO L857 garLoopResultBuilder]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2021-08-25 21:47:20,973 INFO L857 garLoopResultBuilder]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2021-08-25 21:47:20,973 INFO L857 garLoopResultBuilder]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,973 INFO L857 garLoopResultBuilder]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,974 INFO L857 garLoopResultBuilder]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,974 INFO L857 garLoopResultBuilder]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,974 INFO L857 garLoopResultBuilder]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,974 INFO L857 garLoopResultBuilder]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,974 INFO L857 garLoopResultBuilder]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,974 INFO L857 garLoopResultBuilder]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,974 INFO L857 garLoopResultBuilder]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,974 INFO L857 garLoopResultBuilder]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,974 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-25 21:47:20,974 INFO L857 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2021-08-25 21:47:20,975 INFO L857 garLoopResultBuilder]: For program point L124(line 124) no Hoare annotation was computed. [2021-08-25 21:47:20,975 INFO L857 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2021-08-25 21:47:20,975 INFO L857 garLoopResultBuilder]: For program point L1049(line 1049) no Hoare annotation was computed. [2021-08-25 21:47:20,975 INFO L857 garLoopResultBuilder]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,975 INFO L857 garLoopResultBuilder]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,975 INFO L857 garLoopResultBuilder]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,975 INFO L857 garLoopResultBuilder]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,975 INFO L857 garLoopResultBuilder]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,975 INFO L857 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-08-25 21:47:20,975 INFO L857 garLoopResultBuilder]: For program point L127(line 127) no Hoare annotation was computed. [2021-08-25 21:47:20,975 INFO L857 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2021-08-25 21:47:20,975 INFO L857 garLoopResultBuilder]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,975 INFO L857 garLoopResultBuilder]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,975 INFO L857 garLoopResultBuilder]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,975 INFO L857 garLoopResultBuilder]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,975 INFO L857 garLoopResultBuilder]: For program point L525(lines 525 535) no Hoare annotation was computed. [2021-08-25 21:47:20,975 INFO L857 garLoopResultBuilder]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2021-08-25 21:47:20,975 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,975 INFO L857 garLoopResultBuilder]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,975 INFO L857 garLoopResultBuilder]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,975 INFO L857 garLoopResultBuilder]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,975 INFO L857 garLoopResultBuilder]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,976 INFO L857 garLoopResultBuilder]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,976 INFO L857 garLoopResultBuilder]: For program point L658(lines 658 667) no Hoare annotation was computed. [2021-08-25 21:47:20,976 INFO L857 garLoopResultBuilder]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2021-08-25 21:47:20,976 INFO L857 garLoopResultBuilder]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,976 INFO L857 garLoopResultBuilder]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,976 INFO L857 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2021-08-25 21:47:20,976 INFO L857 garLoopResultBuilder]: For program point L130(line 130) no Hoare annotation was computed. [2021-08-25 21:47:20,976 INFO L857 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2021-08-25 21:47:20,976 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-25 21:47:20,976 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 79) no Hoare annotation was computed. [2021-08-25 21:47:20,976 INFO L857 garLoopResultBuilder]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,976 INFO L857 garLoopResultBuilder]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,976 INFO L857 garLoopResultBuilder]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,976 INFO L857 garLoopResultBuilder]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,976 INFO L857 garLoopResultBuilder]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,976 INFO L857 garLoopResultBuilder]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,976 INFO L857 garLoopResultBuilder]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,977 INFO L857 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2021-08-25 21:47:20,977 INFO L857 garLoopResultBuilder]: For program point L133(line 133) no Hoare annotation was computed. [2021-08-25 21:47:20,977 INFO L857 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2021-08-25 21:47:20,977 INFO L857 garLoopResultBuilder]: For program point L926(lines 926 936) no Hoare annotation was computed. [2021-08-25 21:47:20,977 INFO L857 garLoopResultBuilder]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2021-08-25 21:47:20,977 INFO L857 garLoopResultBuilder]: For program point L728(lines 728 740) no Hoare annotation was computed. [2021-08-25 21:47:20,977 INFO L857 garLoopResultBuilder]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2021-08-25 21:47:20,977 INFO L857 garLoopResultBuilder]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,977 INFO L857 garLoopResultBuilder]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,977 INFO L857 garLoopResultBuilder]: For program point L597(lines 597 607) no Hoare annotation was computed. [2021-08-25 21:47:20,977 INFO L857 garLoopResultBuilder]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2021-08-25 21:47:20,977 INFO L857 garLoopResultBuilder]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,977 INFO L857 garLoopResultBuilder]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,977 INFO L857 garLoopResultBuilder]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,977 INFO L857 garLoopResultBuilder]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,977 INFO L857 garLoopResultBuilder]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,977 INFO L857 garLoopResultBuilder]: For program point L202(line 202) no Hoare annotation was computed. [2021-08-25 21:47:20,977 INFO L857 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2021-08-25 21:47:20,977 INFO L857 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2021-08-25 21:47:20,977 INFO L857 garLoopResultBuilder]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,977 INFO L857 garLoopResultBuilder]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,977 INFO L857 garLoopResultBuilder]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,978 INFO L857 garLoopResultBuilder]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,978 INFO L857 garLoopResultBuilder]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,978 INFO L857 garLoopResultBuilder]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,978 INFO L857 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-08-25 21:47:20,978 INFO L857 garLoopResultBuilder]: For program point L139(line 139) no Hoare annotation was computed. [2021-08-25 21:47:20,978 INFO L857 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-08-25 21:47:20,978 INFO L857 garLoopResultBuilder]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,978 INFO L857 garLoopResultBuilder]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,978 INFO L857 garLoopResultBuilder]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,978 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,978 INFO L857 garLoopResultBuilder]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,978 INFO L857 garLoopResultBuilder]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,978 INFO L857 garLoopResultBuilder]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,978 INFO L857 garLoopResultBuilder]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,978 INFO L857 garLoopResultBuilder]: For program point L208(line 208) no Hoare annotation was computed. [2021-08-25 21:47:20,978 INFO L857 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2021-08-25 21:47:20,978 INFO L857 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-08-25 21:47:20,978 INFO L857 garLoopResultBuilder]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,978 INFO L857 garLoopResultBuilder]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,978 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,979 INFO L857 garLoopResultBuilder]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,979 INFO L857 garLoopResultBuilder]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,979 INFO L857 garLoopResultBuilder]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,979 INFO L857 garLoopResultBuilder]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,979 INFO L857 garLoopResultBuilder]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,979 INFO L857 garLoopResultBuilder]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,979 INFO L857 garLoopResultBuilder]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,979 INFO L857 garLoopResultBuilder]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,979 INFO L857 garLoopResultBuilder]: For program point L409(lines 409 420) no Hoare annotation was computed. [2021-08-25 21:47:20,979 INFO L857 garLoopResultBuilder]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2021-08-25 21:47:20,979 INFO L857 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-08-25 21:47:20,979 INFO L857 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2021-08-25 21:47:20,979 INFO L857 garLoopResultBuilder]: For program point L79(line 79) no Hoare annotation was computed. [2021-08-25 21:47:20,979 INFO L857 garLoopResultBuilder]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,979 INFO L857 garLoopResultBuilder]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,979 INFO L857 garLoopResultBuilder]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,979 INFO L857 garLoopResultBuilder]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,980 INFO L857 garLoopResultBuilder]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,980 INFO L857 garLoopResultBuilder]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,980 INFO L857 garLoopResultBuilder]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,980 INFO L857 garLoopResultBuilder]: For program point L214(line 214) no Hoare annotation was computed. [2021-08-25 21:47:20,980 INFO L857 garLoopResultBuilder]: For program point L148(line 148) no Hoare annotation was computed. [2021-08-25 21:47:20,980 INFO L857 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2021-08-25 21:47:20,980 INFO L857 garLoopResultBuilder]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,980 INFO L857 garLoopResultBuilder]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,980 INFO L857 garLoopResultBuilder]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,980 INFO L857 garLoopResultBuilder]: For program point L876(lines 876 885) no Hoare annotation was computed. [2021-08-25 21:47:20,980 INFO L857 garLoopResultBuilder]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2021-08-25 21:47:20,980 INFO L857 garLoopResultBuilder]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,980 INFO L857 garLoopResultBuilder]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,980 INFO L857 garLoopResultBuilder]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,980 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,980 INFO L857 garLoopResultBuilder]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,980 INFO L857 garLoopResultBuilder]: For program point L151(line 151) no Hoare annotation was computed. [2021-08-25 21:47:20,980 INFO L857 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2021-08-25 21:47:20,980 INFO L857 garLoopResultBuilder]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,980 INFO L857 garLoopResultBuilder]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,980 INFO L857 garLoopResultBuilder]: For program point L614(lines 614 624) no Hoare annotation was computed. [2021-08-25 21:47:20,980 INFO L857 garLoopResultBuilder]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2021-08-25 21:47:20,980 INFO L857 garLoopResultBuilder]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,981 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-25 21:47:20,981 INFO L857 garLoopResultBuilder]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,981 INFO L857 garLoopResultBuilder]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,981 INFO L857 garLoopResultBuilder]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,981 INFO L857 garLoopResultBuilder]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,981 INFO L857 garLoopResultBuilder]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,981 INFO L857 garLoopResultBuilder]: For program point L154(line 154) no Hoare annotation was computed. [2021-08-25 21:47:20,981 INFO L857 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-08-25 21:47:20,981 INFO L857 garLoopResultBuilder]: For program point L815(lines 815 825) no Hoare annotation was computed. [2021-08-25 21:47:20,981 INFO L857 garLoopResultBuilder]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2021-08-25 21:47:20,981 INFO L857 garLoopResultBuilder]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,981 INFO L857 garLoopResultBuilder]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,981 INFO L857 garLoopResultBuilder]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,981 INFO L857 garLoopResultBuilder]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,981 INFO L857 garLoopResultBuilder]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,981 INFO L857 garLoopResultBuilder]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,981 INFO L857 garLoopResultBuilder]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,981 INFO L857 garLoopResultBuilder]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,981 INFO L857 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2021-08-25 21:47:20,981 INFO L857 garLoopResultBuilder]: For program point L91(line 91) no Hoare annotation was computed. [2021-08-25 21:47:20,981 INFO L857 garLoopResultBuilder]: For program point L950(lines 950 962) no Hoare annotation was computed. [2021-08-25 21:47:20,982 INFO L857 garLoopResultBuilder]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2021-08-25 21:47:20,982 INFO L857 garLoopResultBuilder]: For program point L488(lines 488 496) no Hoare annotation was computed. [2021-08-25 21:47:20,982 INFO L857 garLoopResultBuilder]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2021-08-25 21:47:20,982 INFO L857 garLoopResultBuilder]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,982 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,982 INFO L857 garLoopResultBuilder]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,982 INFO L857 garLoopResultBuilder]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,982 INFO L857 garLoopResultBuilder]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,982 INFO L857 garLoopResultBuilder]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,982 INFO L857 garLoopResultBuilder]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,983 INFO L857 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2021-08-25 21:47:20,983 INFO L857 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2021-08-25 21:47:20,983 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-25 21:47:20,983 INFO L857 garLoopResultBuilder]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,983 INFO L857 garLoopResultBuilder]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,983 INFO L857 garLoopResultBuilder]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,983 INFO L857 garLoopResultBuilder]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,983 INFO L857 garLoopResultBuilder]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,983 INFO L857 garLoopResultBuilder]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,983 INFO L857 garLoopResultBuilder]: For program point L163(line 163) no Hoare annotation was computed. [2021-08-25 21:47:20,983 INFO L857 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2021-08-25 21:47:20,983 INFO L857 garLoopResultBuilder]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,984 INFO L857 garLoopResultBuilder]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,984 INFO L857 garLoopResultBuilder]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,984 INFO L857 garLoopResultBuilder]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,984 INFO L857 garLoopResultBuilder]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,984 INFO L857 garLoopResultBuilder]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,984 INFO L857 garLoopResultBuilder]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,984 INFO L857 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2021-08-25 21:47:20,984 INFO L857 garLoopResultBuilder]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:20,984 INFO L857 garLoopResultBuilder]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,984 INFO L857 garLoopResultBuilder]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,984 INFO L857 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2021-08-25 21:47:20,984 INFO L857 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-08-25 21:47:20,984 INFO L857 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-08-25 21:47:20,984 INFO L857 garLoopResultBuilder]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2021-08-25 21:47:20,987 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-25 21:47:21,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 09:47:21 BoogieIcfgContainer [2021-08-25 21:47:21,003 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-25 21:47:21,004 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-25 21:47:21,004 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-25 21:47:21,004 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-25 21:47:21,004 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 09:46:22" (3/4) ... [2021-08-25 21:47:21,006 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-25 21:47:21,022 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-08-25 21:47:21,023 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-25 21:47:21,024 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-25 21:47:21,025 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-25 21:47:21,093 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-25 21:47:21,093 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-25 21:47:21,095 INFO L168 Benchmark]: Toolchain (without parser) took 60493.34 ms. Allocated memory was 71.3 MB in the beginning and 2.2 GB in the end (delta: 2.2 GB). Free memory was 50.3 MB in the beginning and 803.3 MB in the end (delta: -753.0 MB). Peak memory consumption was 1.4 GB. Max. memory is 16.1 GB. [2021-08-25 21:47:21,095 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 71.3 MB. Free memory was 52.3 MB in the beginning and 52.2 MB in the end (delta: 36.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-25 21:47:21,095 INFO L168 Benchmark]: CACSL2BoogieTranslator took 530.29 ms. Allocated memory is still 71.3 MB. Free memory was 50.2 MB in the beginning and 41.3 MB in the end (delta: 8.9 MB). Peak memory consumption was 25.0 MB. Max. memory is 16.1 GB. [2021-08-25 21:47:21,095 INFO L168 Benchmark]: Boogie Procedure Inliner took 110.34 ms. Allocated memory was 71.3 MB in the beginning and 98.6 MB in the end (delta: 27.3 MB). Free memory was 41.3 MB in the beginning and 65.0 MB in the end (delta: -23.7 MB). Peak memory consumption was 20.1 MB. Max. memory is 16.1 GB. [2021-08-25 21:47:21,095 INFO L168 Benchmark]: Boogie Preprocessor took 110.46 ms. Allocated memory is still 98.6 MB. Free memory was 65.0 MB in the beginning and 55.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-08-25 21:47:21,096 INFO L168 Benchmark]: RCFGBuilder took 1204.23 ms. Allocated memory was 98.6 MB in the beginning and 121.6 MB in the end (delta: 23.1 MB). Free memory was 55.4 MB in the beginning and 65.8 MB in the end (delta: -10.4 MB). Peak memory consumption was 36.3 MB. Max. memory is 16.1 GB. [2021-08-25 21:47:21,096 INFO L168 Benchmark]: TraceAbstraction took 58443.19 ms. Allocated memory was 121.6 MB in the beginning and 2.2 GB in the end (delta: 2.1 GB). Free memory was 65.0 MB in the beginning and 828.5 MB in the end (delta: -763.5 MB). Peak memory consumption was 1.6 GB. Max. memory is 16.1 GB. [2021-08-25 21:47:21,096 INFO L168 Benchmark]: Witness Printer took 89.90 ms. Allocated memory is still 2.2 GB. Free memory was 828.5 MB in the beginning and 803.3 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-08-25 21:47:21,097 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 71.3 MB. Free memory was 52.3 MB in the beginning and 52.2 MB in the end (delta: 36.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 530.29 ms. Allocated memory is still 71.3 MB. Free memory was 50.2 MB in the beginning and 41.3 MB in the end (delta: 8.9 MB). Peak memory consumption was 25.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 110.34 ms. Allocated memory was 71.3 MB in the beginning and 98.6 MB in the end (delta: 27.3 MB). Free memory was 41.3 MB in the beginning and 65.0 MB in the end (delta: -23.7 MB). Peak memory consumption was 20.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 110.46 ms. Allocated memory is still 98.6 MB. Free memory was 65.0 MB in the beginning and 55.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1204.23 ms. Allocated memory was 98.6 MB in the beginning and 121.6 MB in the end (delta: 23.1 MB). Free memory was 55.4 MB in the beginning and 65.8 MB in the end (delta: -10.4 MB). Peak memory consumption was 36.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 58443.19 ms. Allocated memory was 121.6 MB in the beginning and 2.2 GB in the end (delta: 2.1 GB). Free memory was 65.0 MB in the beginning and 828.5 MB in the end (delta: -763.5 MB). Peak memory consumption was 1.6 GB. Max. memory is 16.1 GB. * Witness Printer took 89.90 ms. Allocated memory is still 2.2 GB. Free memory was 828.5 MB in the beginning and 803.3 MB in the end (delta: 25.2 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: 79]: 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: 58383.7ms, OverallIterations: 28, TraceHistogramMax: 14, EmptinessCheckTime: 551.1ms, AutomataDifference: 26810.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 7323.1ms, InitialAbstractionConstructionTime: 14.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 4896 SDtfs, 5405 SDslu, 839 SDs, 0 SdLazy, 23293 SolverSat, 3492 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17838.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3768 GetRequests, 3710 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 266.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=30808occurred in iteration=17, InterpolantAutomatonStates: 102, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 4510.6ms AutomataMinimizationTime, 28 MinimizatonAttempts, 50577 StatesRemovedByMinimization, 24 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 185 NumberOfFragments, 645 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1354790 FormulaSimplificationTreeSizeReduction, 2079.7ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 676928 FormulaSimplificationTreeSizeReductionInter, 5232.5ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 509.8ms SsaConstructionTime, 1653.5ms SatisfiabilityAnalysisTime, 13948.4ms InterpolantComputationTime, 20930 NumberOfCodeBlocks, 20930 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 20898 ConstructedInterpolants, 19 QuantifiedInterpolants, 52033 SizeOfPredicates, 1 NumberOfNonLiveVariables, 4813 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 32 InterpolantComputations, 27 PerfectInterpolantSequences, 62009/63340 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: ((((((((((((((((((((a25 == 12 && a3 == 1) && a4 == 1) && a23 <= 312) || ((((a29 < 276 && a25 == 12) && 261 <= a29) && a4 == 0) && a3 == 1)) || ((((a23 + 43 <= 0 && 261 <= a29) && a4 == 0) && a3 == 1) && a25 <= 9)) || ((((a25 == 12 && 140 < a29) && a4 == 0) && a29 <= 274) && a3 == 1)) || ((((a29 < 276 && 140 < a29) && 261 <= a29) && a23 <= 138) && a4 == 1)) || (((((a25 == 13 && 140 < a29) && a29 <= 245) && a3 == 1) && a4 == 1) && a8 == 15)) || (((a23 <= 599997 && a3 == 1) && a4 == 1) && a25 == 10)) || (((((a23 + 43 <= 0 && a4 == 0) && a29 + 554036 <= 0) && a3 == 1) && a25 <= 9) && 0 <= 580293 + a29)) || ((((a23 + 55 <= 0 && 0 <= a29 + 580294) && a4 == 0) && a3 == 1) && a29 <= 220)) || (((((140 < a29 && a29 <= 274) && a3 == 1) && a25 == 10) || (((140 < a29 && a29 <= 274) && a3 == 1) && a25 <= 9)) && a4 == 1)) || ((((a29 < 276 && 261 <= a29) && a3 == 1) && a4 == 1) && a25 <= 9)) || ((((a23 <= 600000 && 140 < a29) && a25 <= 11) && a3 == 1) && a4 == 1)) || (((a3 == 1 && a4 == 1) && a23 <= 312) && a25 <= 9)) || ((((a25 == 13 && 140 < a29) && a3 == 1) && a4 == 1) && a29 <= 232)) || (((140 < a29 && a3 == 1) && a23 <= 138) && a4 == 1)) || ((((a23 <= 600000 && a25 == 12) && 140 < a29) && a3 == 1) && a4 == 1)) || (((a25 == 13 && a23 <= 599997) && a3 == 1) && a4 == 1)) || ((a23 <= 138 && a4 == 1) && a25 == 10)) || (((((a25 == 13 && a23 + 43 <= 0) && 140 < a29) && a4 == 0) && a29 <= 274) && a3 == 1) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((((((((((((((((((((a25 == 12 && a3 == 1) && a4 == 1) && a23 <= 312) || ((((a29 < 276 && a25 == 12) && 261 <= a29) && a4 == 0) && a3 == 1)) || ((((a23 + 43 <= 0 && 261 <= a29) && a4 == 0) && a3 == 1) && a25 <= 9)) || ((((a25 == 12 && 140 < a29) && a4 == 0) && a29 <= 274) && a3 == 1)) || ((((a29 < 276 && 140 < a29) && 261 <= a29) && a23 <= 138) && a4 == 1)) || (((((a25 == 13 && 140 < a29) && a29 <= 245) && a3 == 1) && a4 == 1) && a8 == 15)) || (((a23 <= 599997 && a3 == 1) && a4 == 1) && a25 == 10)) || (((((a23 + 43 <= 0 && a4 == 0) && a29 + 554036 <= 0) && a3 == 1) && a25 <= 9) && 0 <= 580293 + a29)) || ((((a23 + 55 <= 0 && 0 <= a29 + 580294) && a4 == 0) && a3 == 1) && a29 <= 220)) || (((((140 < a29 && a29 <= 274) && a3 == 1) && a25 == 10) || (((140 < a29 && a29 <= 274) && a3 == 1) && a25 <= 9)) && a4 == 1)) || ((((a29 < 276 && 261 <= a29) && a3 == 1) && a4 == 1) && a25 <= 9)) || ((((a23 <= 600000 && 140 < a29) && a25 <= 11) && a3 == 1) && a4 == 1)) || (((a3 == 1 && a4 == 1) && a23 <= 312) && a25 <= 9)) || ((((a25 == 13 && 140 < a29) && a3 == 1) && a4 == 1) && a29 <= 232)) || (((140 < a29 && a3 == 1) && a23 <= 138) && a4 == 1)) || ((((a23 <= 600000 && a25 == 12) && 140 < a29) && a3 == 1) && a4 == 1)) || (((a25 == 13 && a23 <= 599997) && a3 == 1) && a4 == 1)) || ((a23 <= 138 && a4 == 1) && a25 == 10)) || (((((a25 == 13 && a23 + 43 <= 0) && 140 < a29) && a4 == 0) && a29 <= 274) && a3 == 1) - InvariantResult [Line: 1038]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-08-25 21:47:21,135 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...