./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem14_label32.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54858612 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/Problem14_label32.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 ca72c71b23fee4cd397e2aea9d7f372c092e71dd ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-25 20:46:12,492 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 20:46:12,495 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 20:46:12,530 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 20:46:12,531 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 20:46:12,533 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 20:46:12,535 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 20:46:12,537 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 20:46:12,540 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 20:46:12,541 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 20:46:12,542 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 20:46:12,544 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 20:46:12,544 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 20:46:12,546 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 20:46:12,547 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 20:46:12,549 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 20:46:12,550 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 20:46:12,551 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 20:46:12,553 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 20:46:12,556 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 20:46:12,558 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 20:46:12,560 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 20:46:12,561 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 20:46:12,563 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 20:46:12,566 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 20:46:12,567 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 20:46:12,567 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 20:46:12,568 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 20:46:12,569 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 20:46:12,570 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 20:46:12,570 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 20:46:12,572 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 20:46:12,573 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 20:46:12,574 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 20:46:12,575 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 20:46:12,576 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 20:46:12,577 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 20:46:12,577 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 20:46:12,577 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 20:46:12,579 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 20:46:12,580 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 20:46:12,581 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 20:46:12,626 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 20:46:12,627 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 20:46:12,628 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 20:46:12,629 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 20:46:12,629 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 20:46:12,629 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 20:46:12,630 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 20:46:12,630 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 20:46:12,630 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 20:46:12,631 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 20:46:12,631 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 20:46:12,631 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 20:46:12,631 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 20:46:12,632 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 20:46:12,632 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 20:46:12,632 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 20:46:12,632 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 20:46:12,633 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 20:46:12,633 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 20:46:12,633 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 20:46:12,633 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 20:46:12,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 20:46:12,634 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 20:46:12,634 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 20:46:12,635 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 20:46:12,635 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 20:46:12,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 20:46:12,635 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 20:46:12,636 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 20:46:12,636 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca72c71b23fee4cd397e2aea9d7f372c092e71dd [2020-10-25 20:46:13,134 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 20:46:13,171 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 20:46:13,174 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 20:46:13,176 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 20:46:13,177 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 20:46:13,178 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label32.c [2020-10-25 20:46:13,269 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39617719b/5de6a0523f5f4fec8b075581238339aa/FLAG9f0245fd8 [2020-10-25 20:46:14,116 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 20:46:14,117 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label32.c [2020-10-25 20:46:14,130 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39617719b/5de6a0523f5f4fec8b075581238339aa/FLAG9f0245fd8 [2020-10-25 20:46:14,305 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39617719b/5de6a0523f5f4fec8b075581238339aa [2020-10-25 20:46:14,308 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 20:46:14,315 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 20:46:14,319 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 20:46:14,319 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 20:46:14,323 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 20:46:14,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 08:46:14" (1/1) ... [2020-10-25 20:46:14,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b544595 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:46:14, skipping insertion in model container [2020-10-25 20:46:14,329 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 08:46:14" (1/1) ... [2020-10-25 20:46:14,337 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 20:46:14,450 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 20:46:14,933 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 20:46:14,945 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 20:46:15,214 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 20:46:15,238 INFO L208 MainTranslator]: Completed translation [2020-10-25 20:46:15,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:46:15 WrapperNode [2020-10-25 20:46:15,239 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 20:46:15,241 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 20:46:15,241 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 20:46:15,242 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 20:46:15,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:46:15" (1/1) ... [2020-10-25 20:46:15,294 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:46:15" (1/1) ... [2020-10-25 20:46:15,402 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 20:46:15,403 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 20:46:15,404 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 20:46:15,404 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 20:46:15,415 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:46:15" (1/1) ... [2020-10-25 20:46:15,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:46:15" (1/1) ... [2020-10-25 20:46:15,424 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:46:15" (1/1) ... [2020-10-25 20:46:15,424 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:46:15" (1/1) ... [2020-10-25 20:46:15,496 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:46:15" (1/1) ... [2020-10-25 20:46:15,518 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:46:15" (1/1) ... [2020-10-25 20:46:15,545 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:46:15" (1/1) ... [2020-10-25 20:46:15,560 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 20:46:15,562 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 20:46:15,563 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 20:46:15,563 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 20:46:15,565 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:46:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 20:46:15,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 20:46:15,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 20:46:15,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 20:46:15,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 20:46:17,216 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 20:46:17,216 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-25 20:46:17,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 08:46:17 BoogieIcfgContainer [2020-10-25 20:46:17,221 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 20:46:17,226 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 20:46:17,227 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 20:46:17,231 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 20:46:17,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 08:46:14" (1/3) ... [2020-10-25 20:46:17,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76000e05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 08:46:17, skipping insertion in model container [2020-10-25 20:46:17,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:46:15" (2/3) ... [2020-10-25 20:46:17,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76000e05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 08:46:17, skipping insertion in model container [2020-10-25 20:46:17,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 08:46:17" (3/3) ... [2020-10-25 20:46:17,235 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label32.c [2020-10-25 20:46:17,250 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 20:46:17,257 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 20:46:17,273 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 20:46:17,320 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 20:46:17,321 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 20:46:17,321 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 20:46:17,321 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 20:46:17,321 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 20:46:17,322 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 20:46:17,322 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 20:46:17,322 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 20:46:17,351 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states. [2020-10-25 20:46:17,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-25 20:46:17,366 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:46:17,367 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:46:17,367 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:46:17,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:46:17,376 INFO L82 PathProgramCache]: Analyzing trace with hash 1246856209, now seen corresponding path program 1 times [2020-10-25 20:46:17,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:46:17,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660538494] [2020-10-25 20:46:17,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:46:17,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:17,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:46:17,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660538494] [2020-10-25 20:46:17,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:46:17,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 20:46:17,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753701842] [2020-10-25 20:46:17,900 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:46:17,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:46:17,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:46:17,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:46:17,922 INFO L87 Difference]: Start difference. First operand 246 states. Second operand 3 states. [2020-10-25 20:46:19,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:46:19,241 INFO L93 Difference]: Finished difference Result 686 states and 1217 transitions. [2020-10-25 20:46:19,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:46:19,243 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 55 [2020-10-25 20:46:19,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:46:19,282 INFO L225 Difference]: With dead ends: 686 [2020-10-25 20:46:19,282 INFO L226 Difference]: Without dead ends: 360 [2020-10-25 20:46:19,291 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:46:19,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-10-25 20:46:19,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2020-10-25 20:46:19,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-10-25 20:46:19,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 510 transitions. [2020-10-25 20:46:19,390 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 510 transitions. Word has length 55 [2020-10-25 20:46:19,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:46:19,391 INFO L481 AbstractCegarLoop]: Abstraction has 360 states and 510 transitions. [2020-10-25 20:46:19,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:46:19,392 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 510 transitions. [2020-10-25 20:46:19,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-25 20:46:19,399 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:46:19,399 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:46:19,400 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 20:46:19,400 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:46:19,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:46:19,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1836731489, now seen corresponding path program 1 times [2020-10-25 20:46:19,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:46:19,401 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032387099] [2020-10-25 20:46:19,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:46:19,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:19,719 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:46:19,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032387099] [2020-10-25 20:46:19,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:46:19,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:46:19,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425326174] [2020-10-25 20:46:19,723 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 20:46:19,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:46:19,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 20:46:19,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-25 20:46:19,727 INFO L87 Difference]: Start difference. First operand 360 states and 510 transitions. Second operand 4 states. [2020-10-25 20:46:21,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:46:21,441 INFO L93 Difference]: Finished difference Result 1074 states and 1446 transitions. [2020-10-25 20:46:21,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 20:46:21,442 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 134 [2020-10-25 20:46:21,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:46:21,450 INFO L225 Difference]: With dead ends: 1074 [2020-10-25 20:46:21,450 INFO L226 Difference]: Without dead ends: 716 [2020-10-25 20:46:21,458 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:46:21,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2020-10-25 20:46:21,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2020-10-25 20:46:21,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2020-10-25 20:46:21,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 902 transitions. [2020-10-25 20:46:21,526 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 902 transitions. Word has length 134 [2020-10-25 20:46:21,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:46:21,527 INFO L481 AbstractCegarLoop]: Abstraction has 716 states and 902 transitions. [2020-10-25 20:46:21,529 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 20:46:21,529 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 902 transitions. [2020-10-25 20:46:21,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-25 20:46:21,536 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:46:21,537 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:46:21,538 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 20:46:21,538 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:46:21,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:46:21,540 INFO L82 PathProgramCache]: Analyzing trace with hash -1559431680, now seen corresponding path program 1 times [2020-10-25 20:46:21,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:46:21,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741118853] [2020-10-25 20:46:21,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:46:21,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:21,779 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:46:21,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741118853] [2020-10-25 20:46:21,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:46:21,780 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:46:21,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916266631] [2020-10-25 20:46:21,781 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:46:21,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:46:21,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:46:21,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:46:21,783 INFO L87 Difference]: Start difference. First operand 716 states and 902 transitions. Second operand 3 states. [2020-10-25 20:46:23,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:46:23,012 INFO L93 Difference]: Finished difference Result 1964 states and 2499 transitions. [2020-10-25 20:46:23,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:46:23,015 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2020-10-25 20:46:23,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:46:23,023 INFO L225 Difference]: With dead ends: 1964 [2020-10-25 20:46:23,023 INFO L226 Difference]: Without dead ends: 1250 [2020-10-25 20:46:23,025 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:46:23,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2020-10-25 20:46:23,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1250. [2020-10-25 20:46:23,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1250 states. [2020-10-25 20:46:23,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1544 transitions. [2020-10-25 20:46:23,056 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1544 transitions. Word has length 160 [2020-10-25 20:46:23,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:46:23,057 INFO L481 AbstractCegarLoop]: Abstraction has 1250 states and 1544 transitions. [2020-10-25 20:46:23,057 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:46:23,057 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1544 transitions. [2020-10-25 20:46:23,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-10-25 20:46:23,063 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:46:23,064 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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] [2020-10-25 20:46:23,064 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-25 20:46:23,064 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:46:23,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:46:23,065 INFO L82 PathProgramCache]: Analyzing trace with hash -1991475346, now seen corresponding path program 1 times [2020-10-25 20:46:23,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:46:23,066 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914579849] [2020-10-25 20:46:23,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:46:23,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:23,374 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-25 20:46:23,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914579849] [2020-10-25 20:46:23,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:46:23,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:46:23,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212706845] [2020-10-25 20:46:23,377 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 20:46:23,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:46:23,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 20:46:23,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 20:46:23,380 INFO L87 Difference]: Start difference. First operand 1250 states and 1544 transitions. Second operand 4 states. [2020-10-25 20:46:24,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:46:24,627 INFO L93 Difference]: Finished difference Result 2705 states and 3353 transitions. [2020-10-25 20:46:24,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 20:46:24,628 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 214 [2020-10-25 20:46:24,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:46:24,639 INFO L225 Difference]: With dead ends: 2705 [2020-10-25 20:46:24,639 INFO L226 Difference]: Without dead ends: 1606 [2020-10-25 20:46:24,642 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 20:46:24,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2020-10-25 20:46:24,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1606. [2020-10-25 20:46:24,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1606 states. [2020-10-25 20:46:24,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1801 transitions. [2020-10-25 20:46:24,680 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1801 transitions. Word has length 214 [2020-10-25 20:46:24,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:46:24,682 INFO L481 AbstractCegarLoop]: Abstraction has 1606 states and 1801 transitions. [2020-10-25 20:46:24,682 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 20:46:24,683 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1801 transitions. [2020-10-25 20:46:24,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2020-10-25 20:46:24,689 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:46:24,690 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:46:24,690 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-25 20:46:24,690 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:46:24,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:46:24,691 INFO L82 PathProgramCache]: Analyzing trace with hash -306723624, now seen corresponding path program 1 times [2020-10-25 20:46:24,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:46:24,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824762281] [2020-10-25 20:46:24,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:46:24,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:25,274 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 206 proven. 130 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-10-25 20:46:25,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824762281] [2020-10-25 20:46:25,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1657020817] [2020-10-25 20:46:25,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 20:46:25,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:25,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 20:46:25,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 20:46:25,806 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2020-10-25 20:46:25,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 20:46:25,807 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-10-25 20:46:25,807 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041689243] [2020-10-25 20:46:25,808 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:46:25,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:46:25,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:46:25,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-25 20:46:25,810 INFO L87 Difference]: Start difference. First operand 1606 states and 1801 transitions. Second operand 3 states. [2020-10-25 20:46:26,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:46:26,913 INFO L93 Difference]: Finished difference Result 3388 states and 3901 transitions. [2020-10-25 20:46:26,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:46:26,914 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 341 [2020-10-25 20:46:26,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:46:26,925 INFO L225 Difference]: With dead ends: 3388 [2020-10-25 20:46:26,925 INFO L226 Difference]: Without dead ends: 1962 [2020-10-25 20:46:26,928 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-25 20:46:26,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2020-10-25 20:46:26,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1962. [2020-10-25 20:46:26,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1962 states. [2020-10-25 20:46:26,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2220 transitions. [2020-10-25 20:46:26,976 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2220 transitions. Word has length 341 [2020-10-25 20:46:26,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:46:26,978 INFO L481 AbstractCegarLoop]: Abstraction has 1962 states and 2220 transitions. [2020-10-25 20:46:26,978 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:46:26,978 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2220 transitions. [2020-10-25 20:46:26,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2020-10-25 20:46:26,985 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:46:26,985 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:46:27,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 20:46:27,199 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:46:27,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:46:27,200 INFO L82 PathProgramCache]: Analyzing trace with hash -329069406, now seen corresponding path program 1 times [2020-10-25 20:46:27,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:46:27,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105434900] [2020-10-25 20:46:27,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:46:27,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:27,809 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 289 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:46:27,810 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105434900] [2020-10-25 20:46:27,810 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [529086145] [2020-10-25 20:46:27,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 20:46:27,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:27,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 20:46:27,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 20:46:28,109 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2020-10-25 20:46:28,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 20:46:28,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-10-25 20:46:28,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406304351] [2020-10-25 20:46:28,113 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:46:28,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:46:28,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:46:28,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-25 20:46:28,125 INFO L87 Difference]: Start difference. First operand 1962 states and 2220 transitions. Second operand 3 states. [2020-10-25 20:46:29,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:46:29,170 INFO L93 Difference]: Finished difference Result 4278 states and 4910 transitions. [2020-10-25 20:46:29,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:46:29,171 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 345 [2020-10-25 20:46:29,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:46:29,184 INFO L225 Difference]: With dead ends: 4278 [2020-10-25 20:46:29,185 INFO L226 Difference]: Without dead ends: 2496 [2020-10-25 20:46:29,188 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 344 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-25 20:46:29,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2020-10-25 20:46:29,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2496. [2020-10-25 20:46:29,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2496 states. [2020-10-25 20:46:29,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2795 transitions. [2020-10-25 20:46:29,245 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2795 transitions. Word has length 345 [2020-10-25 20:46:29,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:46:29,253 INFO L481 AbstractCegarLoop]: Abstraction has 2496 states and 2795 transitions. [2020-10-25 20:46:29,253 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:46:29,254 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2795 transitions. [2020-10-25 20:46:29,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2020-10-25 20:46:29,261 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:46:29,262 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:46:29,476 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 20:46:29,477 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:46:29,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:46:29,478 INFO L82 PathProgramCache]: Analyzing trace with hash 422750355, now seen corresponding path program 1 times [2020-10-25 20:46:29,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:46:29,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15645295] [2020-10-25 20:46:29,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:46:29,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:30,010 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 219 proven. 130 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2020-10-25 20:46:30,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15645295] [2020-10-25 20:46:30,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887115266] [2020-10-25 20:46:30,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 20:46:30,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:30,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 20:46:30,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 20:46:30,366 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2020-10-25 20:46:30,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 20:46:30,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-10-25 20:46:30,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476824899] [2020-10-25 20:46:30,368 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:46:30,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:46:30,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:46:30,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-25 20:46:30,369 INFO L87 Difference]: Start difference. First operand 2496 states and 2795 transitions. Second operand 3 states. [2020-10-25 20:46:31,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:46:31,310 INFO L93 Difference]: Finished difference Result 5524 states and 6312 transitions. [2020-10-25 20:46:31,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:46:31,311 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 354 [2020-10-25 20:46:31,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:46:31,331 INFO L225 Difference]: With dead ends: 5524 [2020-10-25 20:46:31,331 INFO L226 Difference]: Without dead ends: 3208 [2020-10-25 20:46:31,335 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-25 20:46:31,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2020-10-25 20:46:31,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 3030. [2020-10-25 20:46:31,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3030 states. [2020-10-25 20:46:31,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3381 transitions. [2020-10-25 20:46:31,406 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3381 transitions. Word has length 354 [2020-10-25 20:46:31,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:46:31,407 INFO L481 AbstractCegarLoop]: Abstraction has 3030 states and 3381 transitions. [2020-10-25 20:46:31,407 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:46:31,407 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3381 transitions. [2020-10-25 20:46:31,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2020-10-25 20:46:31,414 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:46:31,415 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:46:31,630 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 20:46:31,630 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:46:31,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:46:31,632 INFO L82 PathProgramCache]: Analyzing trace with hash 428544215, now seen corresponding path program 1 times [2020-10-25 20:46:31,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:46:31,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213873503] [2020-10-25 20:46:31,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:46:31,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:31,906 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-10-25 20:46:31,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213873503] [2020-10-25 20:46:31,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:46:31,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:46:31,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245152200] [2020-10-25 20:46:31,908 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:46:31,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:46:31,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:46:31,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:46:31,910 INFO L87 Difference]: Start difference. First operand 3030 states and 3381 transitions. Second operand 3 states. [2020-10-25 20:46:32,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:46:32,879 INFO L93 Difference]: Finished difference Result 6592 states and 7451 transitions. [2020-10-25 20:46:32,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:46:32,881 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 379 [2020-10-25 20:46:32,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:46:32,901 INFO L225 Difference]: With dead ends: 6592 [2020-10-25 20:46:32,901 INFO L226 Difference]: Without dead ends: 3742 [2020-10-25 20:46:32,906 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:46:32,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2020-10-25 20:46:33,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3742. [2020-10-25 20:46:33,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3742 states. [2020-10-25 20:46:33,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 4194 transitions. [2020-10-25 20:46:33,016 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 4194 transitions. Word has length 379 [2020-10-25 20:46:33,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:46:33,017 INFO L481 AbstractCegarLoop]: Abstraction has 3742 states and 4194 transitions. [2020-10-25 20:46:33,017 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:46:33,017 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 4194 transitions. [2020-10-25 20:46:33,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2020-10-25 20:46:33,029 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:46:33,029 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:46:33,029 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-25 20:46:33,030 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:46:33,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:46:33,031 INFO L82 PathProgramCache]: Analyzing trace with hash 1042853293, now seen corresponding path program 1 times [2020-10-25 20:46:33,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:46:33,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235410155] [2020-10-25 20:46:33,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:46:33,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:33,482 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 368 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-10-25 20:46:33,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235410155] [2020-10-25 20:46:33,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:46:33,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:46:33,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679000688] [2020-10-25 20:46:33,485 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:46:33,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:46:33,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:46:33,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:46:33,486 INFO L87 Difference]: Start difference. First operand 3742 states and 4194 transitions. Second operand 3 states. [2020-10-25 20:46:34,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:46:34,439 INFO L93 Difference]: Finished difference Result 7838 states and 8810 transitions. [2020-10-25 20:46:34,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:46:34,439 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 439 [2020-10-25 20:46:34,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:46:34,460 INFO L225 Difference]: With dead ends: 7838 [2020-10-25 20:46:34,460 INFO L226 Difference]: Without dead ends: 4276 [2020-10-25 20:46:34,466 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:46:34,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2020-10-25 20:46:34,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2020-10-25 20:46:34,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4276 states. [2020-10-25 20:46:34,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4753 transitions. [2020-10-25 20:46:34,554 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 4753 transitions. Word has length 439 [2020-10-25 20:46:34,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:46:34,556 INFO L481 AbstractCegarLoop]: Abstraction has 4276 states and 4753 transitions. [2020-10-25 20:46:34,556 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:46:34,556 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 4753 transitions. [2020-10-25 20:46:34,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 520 [2020-10-25 20:46:34,563 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:46:34,563 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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, 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] [2020-10-25 20:46:34,564 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-25 20:46:34,564 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:46:34,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:46:34,565 INFO L82 PathProgramCache]: Analyzing trace with hash -1509773508, now seen corresponding path program 1 times [2020-10-25 20:46:34,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:46:34,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319794123] [2020-10-25 20:46:34,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:46:34,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:35,028 INFO L134 CoverageAnalysis]: Checked inductivity of 764 backedges. 477 proven. 0 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2020-10-25 20:46:35,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319794123] [2020-10-25 20:46:35,029 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:46:35,029 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:46:35,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690727127] [2020-10-25 20:46:35,031 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 20:46:35,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:46:35,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 20:46:35,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 20:46:35,032 INFO L87 Difference]: Start difference. First operand 4276 states and 4753 transitions. Second operand 4 states. [2020-10-25 20:46:36,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:46:36,146 INFO L93 Difference]: Finished difference Result 8608 states and 9579 transitions. [2020-10-25 20:46:36,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 20:46:36,149 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 519 [2020-10-25 20:46:36,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:46:36,169 INFO L225 Difference]: With dead ends: 8608 [2020-10-25 20:46:36,169 INFO L226 Difference]: Without dead ends: 4454 [2020-10-25 20:46:36,175 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 20:46:36,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2020-10-25 20:46:36,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 4276. [2020-10-25 20:46:36,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4276 states. [2020-10-25 20:46:36,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4615 transitions. [2020-10-25 20:46:36,261 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 4615 transitions. Word has length 519 [2020-10-25 20:46:36,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:46:36,262 INFO L481 AbstractCegarLoop]: Abstraction has 4276 states and 4615 transitions. [2020-10-25 20:46:36,262 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 20:46:36,262 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 4615 transitions. [2020-10-25 20:46:36,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2020-10-25 20:46:36,268 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:46:36,269 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-25 20:46:36,269 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-25 20:46:36,269 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:46:36,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:46:36,270 INFO L82 PathProgramCache]: Analyzing trace with hash 824243095, now seen corresponding path program 1 times [2020-10-25 20:46:36,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:46:36,271 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474645077] [2020-10-25 20:46:36,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:46:36,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:36,641 INFO L134 CoverageAnalysis]: Checked inductivity of 848 backedges. 211 proven. 0 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2020-10-25 20:46:36,642 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474645077] [2020-10-25 20:46:36,642 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:46:36,642 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:46:36,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385465540] [2020-10-25 20:46:36,643 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:46:36,644 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:46:36,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:46:36,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:46:36,645 INFO L87 Difference]: Start difference. First operand 4276 states and 4615 transitions. Second operand 3 states. [2020-10-25 20:46:37,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:46:37,511 INFO L93 Difference]: Finished difference Result 9084 states and 9847 transitions. [2020-10-25 20:46:37,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:46:37,512 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 534 [2020-10-25 20:46:37,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:46:37,535 INFO L225 Difference]: With dead ends: 9084 [2020-10-25 20:46:37,535 INFO L226 Difference]: Without dead ends: 4988 [2020-10-25 20:46:37,541 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:46:37,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2020-10-25 20:46:37,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4632. [2020-10-25 20:46:37,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4632 states. [2020-10-25 20:46:37,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4996 transitions. [2020-10-25 20:46:37,629 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4996 transitions. Word has length 534 [2020-10-25 20:46:37,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:46:37,630 INFO L481 AbstractCegarLoop]: Abstraction has 4632 states and 4996 transitions. [2020-10-25 20:46:37,630 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:46:37,631 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4996 transitions. [2020-10-25 20:46:37,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2020-10-25 20:46:37,637 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:46:37,638 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-25 20:46:37,638 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-25 20:46:37,639 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:46:37,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:46:37,639 INFO L82 PathProgramCache]: Analyzing trace with hash -216026533, now seen corresponding path program 2 times [2020-10-25 20:46:37,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:46:37,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79724882] [2020-10-25 20:46:37,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:46:37,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:38,389 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 527 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-10-25 20:46:38,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79724882] [2020-10-25 20:46:38,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:46:38,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:46:38,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801021355] [2020-10-25 20:46:38,391 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:46:38,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:46:38,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:46:38,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:46:38,392 INFO L87 Difference]: Start difference. First operand 4632 states and 4996 transitions. Second operand 3 states. [2020-10-25 20:46:39,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:46:39,325 INFO L93 Difference]: Finished difference Result 9440 states and 10198 transitions. [2020-10-25 20:46:39,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:46:39,326 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 545 [2020-10-25 20:46:39,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:46:39,343 INFO L225 Difference]: With dead ends: 9440 [2020-10-25 20:46:39,344 INFO L226 Difference]: Without dead ends: 4988 [2020-10-25 20:46:39,350 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:46:39,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2020-10-25 20:46:39,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4454. [2020-10-25 20:46:39,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4454 states. [2020-10-25 20:46:39,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 4807 transitions. [2020-10-25 20:46:39,438 INFO L78 Accepts]: Start accepts. Automaton has 4454 states and 4807 transitions. Word has length 545 [2020-10-25 20:46:39,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:46:39,439 INFO L481 AbstractCegarLoop]: Abstraction has 4454 states and 4807 transitions. [2020-10-25 20:46:39,439 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:46:39,439 INFO L276 IsEmpty]: Start isEmpty. Operand 4454 states and 4807 transitions. [2020-10-25 20:46:39,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2020-10-25 20:46:39,446 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:46:39,446 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-25 20:46:39,447 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-25 20:46:39,447 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:46:39,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:46:39,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1711640348, now seen corresponding path program 1 times [2020-10-25 20:46:39,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:46:39,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620883831] [2020-10-25 20:46:39,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:46:39,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:39,956 INFO L134 CoverageAnalysis]: Checked inductivity of 848 backedges. 534 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-10-25 20:46:39,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620883831] [2020-10-25 20:46:39,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:46:39,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:46:39,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851850719] [2020-10-25 20:46:39,958 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:46:39,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:46:39,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:46:39,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:46:39,959 INFO L87 Difference]: Start difference. First operand 4454 states and 4807 transitions. Second operand 3 states. [2020-10-25 20:46:40,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:46:40,826 INFO L93 Difference]: Finished difference Result 8906 states and 9627 transitions. [2020-10-25 20:46:40,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:46:40,827 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 552 [2020-10-25 20:46:40,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:46:40,836 INFO L225 Difference]: With dead ends: 8906 [2020-10-25 20:46:40,836 INFO L226 Difference]: Without dead ends: 4632 [2020-10-25 20:46:40,842 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:46:40,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2020-10-25 20:46:40,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4454. [2020-10-25 20:46:40,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4454 states. [2020-10-25 20:46:40,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 4765 transitions. [2020-10-25 20:46:40,907 INFO L78 Accepts]: Start accepts. Automaton has 4454 states and 4765 transitions. Word has length 552 [2020-10-25 20:46:40,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:46:40,908 INFO L481 AbstractCegarLoop]: Abstraction has 4454 states and 4765 transitions. [2020-10-25 20:46:40,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:46:40,908 INFO L276 IsEmpty]: Start isEmpty. Operand 4454 states and 4765 transitions. [2020-10-25 20:46:40,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 630 [2020-10-25 20:46:40,944 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:46:40,945 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 3, 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] [2020-10-25 20:46:40,945 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-25 20:46:40,945 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:46:40,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:46:40,946 INFO L82 PathProgramCache]: Analyzing trace with hash 17986279, now seen corresponding path program 1 times [2020-10-25 20:46:40,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:46:40,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184708957] [2020-10-25 20:46:40,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:46:41,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:41,687 INFO L134 CoverageAnalysis]: Checked inductivity of 1208 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 928 trivial. 0 not checked. [2020-10-25 20:46:41,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184708957] [2020-10-25 20:46:41,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [849850285] [2020-10-25 20:46:41,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 20:46:41,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:41,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 806 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 20:46:41,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 20:46:42,372 INFO L134 CoverageAnalysis]: Checked inductivity of 1208 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1208 trivial. 0 not checked. [2020-10-25 20:46:42,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 20:46:42,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2020-10-25 20:46:42,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741911585] [2020-10-25 20:46:42,375 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:46:42,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:46:42,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:46:42,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:46:42,376 INFO L87 Difference]: Start difference. First operand 4454 states and 4765 transitions. Second operand 3 states. [2020-10-25 20:46:43,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:46:43,162 INFO L93 Difference]: Finished difference Result 5702 states and 6086 transitions. [2020-10-25 20:46:43,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:46:43,163 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 629 [2020-10-25 20:46:43,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:46:43,173 INFO L225 Difference]: With dead ends: 5702 [2020-10-25 20:46:43,173 INFO L226 Difference]: Without dead ends: 5700 [2020-10-25 20:46:43,175 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 631 GetRequests, 628 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:46:43,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2020-10-25 20:46:43,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 4632. [2020-10-25 20:46:43,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4632 states. [2020-10-25 20:46:43,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4952 transitions. [2020-10-25 20:46:43,248 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4952 transitions. Word has length 629 [2020-10-25 20:46:43,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:46:43,249 INFO L481 AbstractCegarLoop]: Abstraction has 4632 states and 4952 transitions. [2020-10-25 20:46:43,249 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:46:43,249 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4952 transitions. [2020-10-25 20:46:43,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 712 [2020-10-25 20:46:43,258 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:46:43,258 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:46:43,472 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 20:46:43,473 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:46:43,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:46:43,474 INFO L82 PathProgramCache]: Analyzing trace with hash -1288878449, now seen corresponding path program 1 times [2020-10-25 20:46:43,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:46:43,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277075422] [2020-10-25 20:46:43,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:46:43,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:44,709 INFO L134 CoverageAnalysis]: Checked inductivity of 1764 backedges. 1293 proven. 104 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2020-10-25 20:46:44,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277075422] [2020-10-25 20:46:44,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605303413] [2020-10-25 20:46:44,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 20:46:44,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:44,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 912 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 20:46:44,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 20:46:45,305 INFO L134 CoverageAnalysis]: Checked inductivity of 1764 backedges. 317 proven. 0 refuted. 0 times theorem prover too weak. 1447 trivial. 0 not checked. [2020-10-25 20:46:45,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 20:46:45,306 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-10-25 20:46:45,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109029258] [2020-10-25 20:46:45,307 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:46:45,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:46:45,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:46:45,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-25 20:46:45,308 INFO L87 Difference]: Start difference. First operand 4632 states and 4952 transitions. Second operand 3 states. [2020-10-25 20:46:46,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:46:46,230 INFO L93 Difference]: Finished difference Result 10686 states and 11425 transitions. [2020-10-25 20:46:46,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:46:46,231 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 711 [2020-10-25 20:46:46,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:46:46,243 INFO L225 Difference]: With dead ends: 10686 [2020-10-25 20:46:46,243 INFO L226 Difference]: Without dead ends: 5700 [2020-10-25 20:46:46,250 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 715 GetRequests, 710 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-25 20:46:46,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2020-10-25 20:46:46,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 4632. [2020-10-25 20:46:46,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4632 states. [2020-10-25 20:46:46,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4931 transitions. [2020-10-25 20:46:46,333 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4931 transitions. Word has length 711 [2020-10-25 20:46:46,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:46:46,334 INFO L481 AbstractCegarLoop]: Abstraction has 4632 states and 4931 transitions. [2020-10-25 20:46:46,334 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:46:46,334 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4931 transitions. [2020-10-25 20:46:46,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 881 [2020-10-25 20:46:46,350 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:46:46,350 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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] [2020-10-25 20:46:46,564 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-10-25 20:46:46,565 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:46:46,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:46:46,566 INFO L82 PathProgramCache]: Analyzing trace with hash -1796766707, now seen corresponding path program 1 times [2020-10-25 20:46:46,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:46:46,567 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656418943] [2020-10-25 20:46:46,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:46:46,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:47,333 INFO L134 CoverageAnalysis]: Checked inductivity of 2081 backedges. 1559 proven. 155 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2020-10-25 20:46:47,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656418943] [2020-10-25 20:46:47,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [908696371] [2020-10-25 20:46:47,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 20:46:47,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:47,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 1086 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 20:46:47,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 20:46:47,982 INFO L134 CoverageAnalysis]: Checked inductivity of 2081 backedges. 317 proven. 0 refuted. 0 times theorem prover too weak. 1764 trivial. 0 not checked. [2020-10-25 20:46:47,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 20:46:47,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-10-25 20:46:47,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945754782] [2020-10-25 20:46:47,983 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:46:47,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:46:47,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:46:47,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:46:47,984 INFO L87 Difference]: Start difference. First operand 4632 states and 4931 transitions. Second operand 3 states. [2020-10-25 20:46:48,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:46:48,866 INFO L93 Difference]: Finished difference Result 5522 states and 5870 transitions. [2020-10-25 20:46:48,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:46:48,867 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 880 [2020-10-25 20:46:48,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:46:48,868 INFO L225 Difference]: With dead ends: 5522 [2020-10-25 20:46:48,868 INFO L226 Difference]: Without dead ends: 0 [2020-10-25 20:46:48,874 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 883 GetRequests, 880 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:46:48,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-25 20:46:48,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-25 20:46:48,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-25 20:46:48,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-25 20:46:48,875 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 880 [2020-10-25 20:46:48,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:46:48,875 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-25 20:46:48,875 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:46:48,875 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-25 20:46:48,875 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 20:46:49,088 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 20:46:49,092 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-25 20:46:49,489 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 32 [2020-10-25 20:46:49,748 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 32 [2020-10-25 20:46:49,753 INFO L274 CegarLoopResult]: For program point L696(lines 696 872) no Hoare annotation was computed. [2020-10-25 20:46:49,753 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-25 20:46:49,753 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-25 20:46:49,753 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-25 20:46:49,753 INFO L274 CegarLoopResult]: For program point L301(lines 301 872) no Hoare annotation was computed. [2020-10-25 20:46:49,753 INFO L274 CegarLoopResult]: For program point L434(lines 434 872) no Hoare annotation was computed. [2020-10-25 20:46:49,753 INFO L274 CegarLoopResult]: For program point L368(lines 368 872) no Hoare annotation was computed. [2020-10-25 20:46:49,754 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,754 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,754 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,754 INFO L274 CegarLoopResult]: For program point L237(lines 237 872) no Hoare annotation was computed. [2020-10-25 20:46:49,754 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-25 20:46:49,754 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-25 20:46:49,754 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-25 20:46:49,754 INFO L274 CegarLoopResult]: For program point L766(lines 766 872) no Hoare annotation was computed. [2020-10-25 20:46:49,754 INFO L274 CegarLoopResult]: For program point L634(lines 634 872) no Hoare annotation was computed. [2020-10-25 20:46:49,754 INFO L274 CegarLoopResult]: For program point L502(lines 502 872) no Hoare annotation was computed. [2020-10-25 20:46:49,754 INFO L274 CegarLoopResult]: For program point L833(lines 833 872) no Hoare annotation was computed. [2020-10-25 20:46:49,755 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,755 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,755 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,756 INFO L274 CegarLoopResult]: For program point L702(lines 702 872) no Hoare annotation was computed. [2020-10-25 20:46:49,756 INFO L274 CegarLoopResult]: For program point L570(lines 570 872) no Hoare annotation was computed. [2020-10-25 20:46:49,756 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-25 20:46:49,757 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-25 20:46:49,757 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-25 20:46:49,757 INFO L274 CegarLoopResult]: For program point L307(lines 307 872) no Hoare annotation was computed. [2020-10-25 20:46:49,757 INFO L274 CegarLoopResult]: For program point L440(lines 440 872) no Hoare annotation was computed. [2020-10-25 20:46:49,757 INFO L274 CegarLoopResult]: For program point L374(lines 374 872) no Hoare annotation was computed. [2020-10-25 20:46:49,757 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,758 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,758 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,758 INFO L274 CegarLoopResult]: For program point L243(lines 243 872) no Hoare annotation was computed. [2020-10-25 20:46:49,758 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-25 20:46:49,758 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-25 20:46:49,758 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-25 20:46:49,758 INFO L274 CegarLoopResult]: For program point L640(lines 640 872) no Hoare annotation was computed. [2020-10-25 20:46:49,758 INFO L274 CegarLoopResult]: For program point L508(lines 508 872) no Hoare annotation was computed. [2020-10-25 20:46:49,759 INFO L274 CegarLoopResult]: For program point L839(lines 839 872) no Hoare annotation was computed. [2020-10-25 20:46:49,759 INFO L274 CegarLoopResult]: For program point L773(lines 773 872) no Hoare annotation was computed. [2020-10-25 20:46:49,759 INFO L274 CegarLoopResult]: For program point L575(lines 575 872) no Hoare annotation was computed. [2020-10-25 20:46:49,759 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,761 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,761 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,761 INFO L274 CegarLoopResult]: For program point L708(lines 708 872) no Hoare annotation was computed. [2020-10-25 20:46:49,761 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-25 20:46:49,761 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-25 20:46:49,761 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-25 20:46:49,761 INFO L274 CegarLoopResult]: For program point L313(lines 313 872) no Hoare annotation was computed. [2020-10-25 20:46:49,762 INFO L274 CegarLoopResult]: For program point L446(lines 446 872) no Hoare annotation was computed. [2020-10-25 20:46:49,762 INFO L274 CegarLoopResult]: For program point L380(lines 380 872) no Hoare annotation was computed. [2020-10-25 20:46:49,762 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,762 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,762 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,762 INFO L274 CegarLoopResult]: For program point L249(lines 249 872) no Hoare annotation was computed. [2020-10-25 20:46:49,762 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-25 20:46:49,762 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-25 20:46:49,762 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-25 20:46:49,762 INFO L274 CegarLoopResult]: For program point L844(lines 844 872) no Hoare annotation was computed. [2020-10-25 20:46:49,762 INFO L274 CegarLoopResult]: For program point L646(lines 646 872) no Hoare annotation was computed. [2020-10-25 20:46:49,763 INFO L274 CegarLoopResult]: For program point L514(lines 514 872) no Hoare annotation was computed. [2020-10-25 20:46:49,763 INFO L274 CegarLoopResult]: For program point L779(lines 779 872) no Hoare annotation was computed. [2020-10-25 20:46:49,763 INFO L274 CegarLoopResult]: For program point L581(lines 581 872) no Hoare annotation was computed. [2020-10-25 20:46:49,763 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,763 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,763 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,763 INFO L274 CegarLoopResult]: For program point L714(lines 714 872) no Hoare annotation was computed. [2020-10-25 20:46:49,763 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-25 20:46:49,763 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-25 20:46:49,763 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-25 20:46:49,763 INFO L274 CegarLoopResult]: For program point L451(lines 451 872) no Hoare annotation was computed. [2020-10-25 20:46:49,764 INFO L274 CegarLoopResult]: For program point L319(lines 319 872) no Hoare annotation was computed. [2020-10-25 20:46:49,764 INFO L274 CegarLoopResult]: For program point L386(lines 386 872) no Hoare annotation was computed. [2020-10-25 20:46:49,764 INFO L274 CegarLoopResult]: For program point L254(lines 254 872) no Hoare annotation was computed. [2020-10-25 20:46:49,765 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,765 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,765 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,765 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-25 20:46:49,765 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-25 20:46:49,765 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-25 20:46:49,765 INFO L274 CegarLoopResult]: For program point L850(lines 850 872) no Hoare annotation was computed. [2020-10-25 20:46:49,765 INFO L274 CegarLoopResult]: For program point L652(lines 652 872) no Hoare annotation was computed. [2020-10-25 20:46:49,765 INFO L274 CegarLoopResult]: For program point L520(lines 520 872) no Hoare annotation was computed. [2020-10-25 20:46:49,766 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 20:46:49,766 INFO L274 CegarLoopResult]: For program point L785(lines 785 872) no Hoare annotation was computed. [2020-10-25 20:46:49,766 INFO L274 CegarLoopResult]: For program point L587(lines 587 872) no Hoare annotation was computed. [2020-10-25 20:46:49,766 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,766 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,766 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,766 INFO L274 CegarLoopResult]: For program point L720(lines 720 872) no Hoare annotation was computed. [2020-10-25 20:46:49,766 INFO L274 CegarLoopResult]: For program point L456(lines 456 872) no Hoare annotation was computed. [2020-10-25 20:46:49,766 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-25 20:46:49,766 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-25 20:46:49,766 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-25 20:46:49,767 INFO L274 CegarLoopResult]: For program point L325(lines 325 872) no Hoare annotation was computed. [2020-10-25 20:46:49,767 INFO L274 CegarLoopResult]: For program point L392(lines 392 872) no Hoare annotation was computed. [2020-10-25 20:46:49,767 INFO L274 CegarLoopResult]: For program point L260(lines 260 872) no Hoare annotation was computed. [2020-10-25 20:46:49,767 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,767 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,767 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,767 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-25 20:46:49,767 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-25 20:46:49,767 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-25 20:46:49,767 INFO L274 CegarLoopResult]: For program point L856(lines 856 872) no Hoare annotation was computed. [2020-10-25 20:46:49,768 INFO L274 CegarLoopResult]: For program point L658(lines 658 872) no Hoare annotation was computed. [2020-10-25 20:46:49,768 INFO L274 CegarLoopResult]: For program point L526(lines 526 872) no Hoare annotation was computed. [2020-10-25 20:46:49,768 INFO L274 CegarLoopResult]: For program point L791(lines 791 872) no Hoare annotation was computed. [2020-10-25 20:46:49,769 INFO L274 CegarLoopResult]: For program point L593(lines 593 872) no Hoare annotation was computed. [2020-10-25 20:46:49,769 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,769 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,769 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,769 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-25 20:46:49,769 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-25 20:46:49,769 INFO L274 CegarLoopResult]: For program point L726(lines 726 872) no Hoare annotation was computed. [2020-10-25 20:46:49,769 INFO L274 CegarLoopResult]: For program point L462(lines 462 872) no Hoare annotation was computed. [2020-10-25 20:46:49,769 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-25 20:46:49,769 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-25 20:46:49,770 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-25 20:46:49,770 INFO L274 CegarLoopResult]: For program point L331(lines 331 872) no Hoare annotation was computed. [2020-10-25 20:46:49,770 INFO L274 CegarLoopResult]: For program point L398(lines 398 872) no Hoare annotation was computed. [2020-10-25 20:46:49,770 INFO L274 CegarLoopResult]: For program point L266(lines 266 872) no Hoare annotation was computed. [2020-10-25 20:46:49,770 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,770 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,770 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,770 INFO L274 CegarLoopResult]: For program point L861(lines 861 872) no Hoare annotation was computed. [2020-10-25 20:46:49,770 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-25 20:46:49,770 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-25 20:46:49,770 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-25 20:46:49,771 INFO L274 CegarLoopResult]: For program point L664(lines 664 872) no Hoare annotation was computed. [2020-10-25 20:46:49,771 INFO L274 CegarLoopResult]: For program point L532(lines 532 872) no Hoare annotation was computed. [2020-10-25 20:46:49,771 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-25 20:46:49,771 INFO L274 CegarLoopResult]: For program point L797(lines 797 872) no Hoare annotation was computed. [2020-10-25 20:46:49,771 INFO L274 CegarLoopResult]: For program point L599(lines 599 872) no Hoare annotation was computed. [2020-10-25 20:46:49,771 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,771 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,771 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,771 INFO L274 CegarLoopResult]: For program point L732(lines 732 872) no Hoare annotation was computed. [2020-10-25 20:46:49,771 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-25 20:46:49,771 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-25 20:46:49,772 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-25 20:46:49,772 INFO L274 CegarLoopResult]: For program point L469(lines 469 872) no Hoare annotation was computed. [2020-10-25 20:46:49,772 INFO L274 CegarLoopResult]: For program point L337(lines 337 872) no Hoare annotation was computed. [2020-10-25 20:46:49,772 INFO L274 CegarLoopResult]: For program point L271(lines 271 872) no Hoare annotation was computed. [2020-10-25 20:46:49,772 INFO L274 CegarLoopResult]: For program point L404(lines 404 872) no Hoare annotation was computed. [2020-10-25 20:46:49,772 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,772 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,772 INFO L274 CegarLoopResult]: For program point L867(lines 867 872) no Hoare annotation was computed. [2020-10-25 20:46:49,772 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-25 20:46:49,772 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-25 20:46:49,772 INFO L274 CegarLoopResult]: For program point L670(lines 670 872) no Hoare annotation was computed. [2020-10-25 20:46:49,773 INFO L274 CegarLoopResult]: For program point L538(lines 538 872) no Hoare annotation was computed. [2020-10-25 20:46:49,773 INFO L274 CegarLoopResult]: For program point L803(lines 803 872) no Hoare annotation was computed. [2020-10-25 20:46:49,773 INFO L274 CegarLoopResult]: For program point L737(lines 737 872) no Hoare annotation was computed. [2020-10-25 20:46:49,773 INFO L274 CegarLoopResult]: For program point L605(lines 605 872) no Hoare annotation was computed. [2020-10-25 20:46:49,773 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,773 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,773 INFO L274 CegarLoopResult]: For program point L474(lines 474 872) no Hoare annotation was computed. [2020-10-25 20:46:49,773 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-25 20:46:49,773 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-25 20:46:49,773 INFO L274 CegarLoopResult]: For program point L343(lines 343 872) no Hoare annotation was computed. [2020-10-25 20:46:49,773 INFO L274 CegarLoopResult]: For program point L277(lines 277 872) no Hoare annotation was computed. [2020-10-25 20:46:49,774 INFO L274 CegarLoopResult]: For program point L410(lines 410 872) no Hoare annotation was computed. [2020-10-25 20:46:49,774 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,774 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,775 INFO L270 CegarLoopResult]: At program point L873(lines 22 874) the Hoare annotation is: (let ((.cse2 (<= ~a15~0 8)) (.cse0 (<= ~a15~0 5)) (.cse3 (<= ~a12~0 11)) (.cse1 (= ~a24~0 1))) (or (and .cse0 .cse1) (and (<= 7 ~a15~0) .cse1 .cse2) (and (< 80 ~a12~0) .cse1) (and .cse3 .cse1 .cse2) (and (<= ~a21~0 7) .cse0 (<= (+ ~a12~0 49) 0)) (and .cse1 (<= ~a21~0 8)) (and .cse3 .cse1 (<= 10 ~a21~0)))) [2020-10-25 20:46:49,775 INFO L274 CegarLoopResult]: For program point L543(lines 543 872) no Hoare annotation was computed. [2020-10-25 20:46:49,775 INFO L274 CegarLoopResult]: For program point L213(lines 213 872) no Hoare annotation was computed. [2020-10-25 20:46:49,775 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-25 20:46:49,775 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-25 20:46:49,775 INFO L274 CegarLoopResult]: For program point L676(lines 676 872) no Hoare annotation was computed. [2020-10-25 20:46:49,776 INFO L274 CegarLoopResult]: For program point L809(lines 809 872) no Hoare annotation was computed. [2020-10-25 20:46:49,776 INFO L274 CegarLoopResult]: For program point L743(lines 743 872) no Hoare annotation was computed. [2020-10-25 20:46:49,777 INFO L274 CegarLoopResult]: For program point L611(lines 611 872) no Hoare annotation was computed. [2020-10-25 20:46:49,777 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,777 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,777 INFO L277 CegarLoopResult]: At program point L876(lines 876 892) the Hoare annotation is: true [2020-10-25 20:46:49,777 INFO L274 CegarLoopResult]: For program point L480(lines 480 872) no Hoare annotation was computed. [2020-10-25 20:46:49,777 INFO L274 CegarLoopResult]: For program point L282(lines 282 872) no Hoare annotation was computed. [2020-10-25 20:46:49,777 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-25 20:46:49,777 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-25 20:46:49,777 INFO L274 CegarLoopResult]: For program point L679(lines 679 872) no Hoare annotation was computed. [2020-10-25 20:46:49,777 INFO L274 CegarLoopResult]: For program point L349(lines 349 872) no Hoare annotation was computed. [2020-10-25 20:46:49,778 INFO L274 CegarLoopResult]: For program point L416(lines 416 872) no Hoare annotation was computed. [2020-10-25 20:46:49,778 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 20:46:49,778 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,778 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,778 INFO L274 CegarLoopResult]: For program point L549(lines 549 872) no Hoare annotation was computed. [2020-10-25 20:46:49,778 INFO L274 CegarLoopResult]: For program point L219(lines 219 872) no Hoare annotation was computed. [2020-10-25 20:46:49,778 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-25 20:46:49,778 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-25 20:46:49,778 INFO L274 CegarLoopResult]: For program point L749(lines 749 872) no Hoare annotation was computed. [2020-10-25 20:46:49,778 INFO L274 CegarLoopResult]: For program point L617(lines 617 872) no Hoare annotation was computed. [2020-10-25 20:46:49,778 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,779 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,779 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-25 20:46:49,779 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,779 INFO L274 CegarLoopResult]: For program point L816(lines 816 872) no Hoare annotation was computed. [2020-10-25 20:46:49,781 INFO L270 CegarLoopResult]: At program point L882-2(lines 882 891) the Hoare annotation is: (let ((.cse2 (<= ~a15~0 8)) (.cse0 (<= ~a15~0 5)) (.cse3 (<= ~a12~0 11)) (.cse1 (= ~a24~0 1))) (or (and .cse0 .cse1) (and (<= 7 ~a15~0) .cse1 .cse2) (and (< 80 ~a12~0) .cse1) (and .cse3 .cse1 .cse2) (and (<= ~a21~0 7) .cse0 (<= (+ ~a12~0 49) 0)) (and .cse1 (<= ~a21~0 8)) (and .cse3 .cse1 (<= 10 ~a21~0)))) [2020-10-25 20:46:49,781 INFO L274 CegarLoopResult]: For program point L486(lines 486 872) no Hoare annotation was computed. [2020-10-25 20:46:49,781 INFO L274 CegarLoopResult]: For program point L288(lines 288 872) no Hoare annotation was computed. [2020-10-25 20:46:49,781 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-25 20:46:49,781 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-25 20:46:49,781 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-25 20:46:49,781 INFO L274 CegarLoopResult]: For program point L685(lines 685 872) no Hoare annotation was computed. [2020-10-25 20:46:49,781 INFO L274 CegarLoopResult]: For program point L355(lines 355 872) no Hoare annotation was computed. [2020-10-25 20:46:49,781 INFO L274 CegarLoopResult]: For program point L554(lines 554 872) no Hoare annotation was computed. [2020-10-25 20:46:49,782 INFO L274 CegarLoopResult]: For program point L422(lines 422 872) no Hoare annotation was computed. [2020-10-25 20:46:49,782 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,782 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,782 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,782 INFO L274 CegarLoopResult]: For program point L225(lines 225 872) no Hoare annotation was computed. [2020-10-25 20:46:49,782 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-25 20:46:49,782 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-25 20:46:49,782 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-25 20:46:49,782 INFO L274 CegarLoopResult]: For program point L754(lines 754 872) no Hoare annotation was computed. [2020-10-25 20:46:49,782 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 20:46:49,782 INFO L274 CegarLoopResult]: For program point L887(line 887) no Hoare annotation was computed. [2020-10-25 20:46:49,783 INFO L274 CegarLoopResult]: For program point L821(lines 821 872) no Hoare annotation was computed. [2020-10-25 20:46:49,783 INFO L274 CegarLoopResult]: For program point L623(lines 623 872) no Hoare annotation was computed. [2020-10-25 20:46:49,783 INFO L274 CegarLoopResult]: For program point L557(lines 557 872) no Hoare annotation was computed. [2020-10-25 20:46:49,783 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,783 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,783 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,783 INFO L274 CegarLoopResult]: For program point L690(lines 690 872) no Hoare annotation was computed. [2020-10-25 20:46:49,783 INFO L274 CegarLoopResult]: For program point L492(lines 492 872) no Hoare annotation was computed. [2020-10-25 20:46:49,783 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-25 20:46:49,783 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-25 20:46:49,783 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-25 20:46:49,784 INFO L274 CegarLoopResult]: For program point L361(lines 361 872) no Hoare annotation was computed. [2020-10-25 20:46:49,784 INFO L274 CegarLoopResult]: For program point L295(lines 295 872) no Hoare annotation was computed. [2020-10-25 20:46:49,784 INFO L274 CegarLoopResult]: For program point L428(lines 428 872) no Hoare annotation was computed. [2020-10-25 20:46:49,784 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,784 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,784 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,784 INFO L274 CegarLoopResult]: For program point L231(lines 231 872) no Hoare annotation was computed. [2020-10-25 20:46:49,784 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-25 20:46:49,784 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-25 20:46:49,784 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-25 20:46:49,785 INFO L274 CegarLoopResult]: For program point L760(lines 760 872) no Hoare annotation was computed. [2020-10-25 20:46:49,785 INFO L274 CegarLoopResult]: For program point L628(lines 628 872) no Hoare annotation was computed. [2020-10-25 20:46:49,785 INFO L274 CegarLoopResult]: For program point L827(lines 827 872) no Hoare annotation was computed. [2020-10-25 20:46:49,785 INFO L274 CegarLoopResult]: For program point L563(lines 563 872) no Hoare annotation was computed. [2020-10-25 20:46:49,785 INFO L274 CegarLoopResult]: For program point L497(lines 497 872) no Hoare annotation was computed. [2020-10-25 20:46:49,785 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,785 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,786 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:49,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 08:46:49 BoogieIcfgContainer [2020-10-25 20:46:49,829 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 20:46:49,830 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 20:46:49,830 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 20:46:49,830 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 20:46:49,830 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 08:46:17" (3/4) ... [2020-10-25 20:46:49,835 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-25 20:46:49,873 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-25 20:46:49,874 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-25 20:46:49,876 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 20:46:49,877 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 20:46:50,078 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 20:46:50,078 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 20:46:50,080 INFO L168 Benchmark]: Toolchain (without parser) took 35769.55 ms. Allocated memory was 48.2 MB in the beginning and 1.2 GB in the end (delta: 1.2 GB). Free memory was 23.2 MB in the beginning and 699.6 MB in the end (delta: -676.4 MB). Peak memory consumption was 510.9 MB. Max. memory is 16.1 GB. [2020-10-25 20:46:50,080 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 48.2 MB. Free memory was 31.0 MB in the beginning and 30.9 MB in the end (delta: 39.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 20:46:50,080 INFO L168 Benchmark]: CACSL2BoogieTranslator took 921.07 ms. Allocated memory was 48.2 MB in the beginning and 60.8 MB in the end (delta: 12.6 MB). Free memory was 22.5 MB in the beginning and 37.0 MB in the end (delta: -14.5 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. [2020-10-25 20:46:50,081 INFO L168 Benchmark]: Boogie Procedure Inliner took 161.84 ms. Allocated memory is still 60.8 MB. Free memory was 37.0 MB in the beginning and 27.4 MB in the end (delta: 9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-10-25 20:46:50,081 INFO L168 Benchmark]: Boogie Preprocessor took 157.28 ms. Allocated memory is still 60.8 MB. Free memory was 27.4 MB in the beginning and 32.5 MB in the end (delta: -5.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. [2020-10-25 20:46:50,081 INFO L168 Benchmark]: RCFGBuilder took 1659.05 ms. Allocated memory was 60.8 MB in the beginning and 81.8 MB in the end (delta: 21.0 MB). Free memory was 32.5 MB in the beginning and 42.3 MB in the end (delta: -9.8 MB). Peak memory consumption was 30.3 MB. Max. memory is 16.1 GB. [2020-10-25 20:46:50,082 INFO L168 Benchmark]: TraceAbstraction took 32603.37 ms. Allocated memory was 81.8 MB in the beginning and 1.2 GB in the end (delta: 1.2 GB). Free memory was 41.7 MB in the beginning and 719.7 MB in the end (delta: -678.0 MB). Peak memory consumption was 471.8 MB. Max. memory is 16.1 GB. [2020-10-25 20:46:50,082 INFO L168 Benchmark]: Witness Printer took 248.72 ms. Allocated memory is still 1.2 GB. Free memory was 719.7 MB in the beginning and 699.6 MB in the end (delta: 20.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-10-25 20:46:50,085 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 48.2 MB. Free memory was 31.0 MB in the beginning and 30.9 MB in the end (delta: 39.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 921.07 ms. Allocated memory was 48.2 MB in the beginning and 60.8 MB in the end (delta: 12.6 MB). Free memory was 22.5 MB in the beginning and 37.0 MB in the end (delta: -14.5 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 161.84 ms. Allocated memory is still 60.8 MB. Free memory was 37.0 MB in the beginning and 27.4 MB in the end (delta: 9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 157.28 ms. Allocated memory is still 60.8 MB. Free memory was 27.4 MB in the beginning and 32.5 MB in the end (delta: -5.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1659.05 ms. Allocated memory was 60.8 MB in the beginning and 81.8 MB in the end (delta: 21.0 MB). Free memory was 32.5 MB in the beginning and 42.3 MB in the end (delta: -9.8 MB). Peak memory consumption was 30.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 32603.37 ms. Allocated memory was 81.8 MB in the beginning and 1.2 GB in the end (delta: 1.2 GB). Free memory was 41.7 MB in the beginning and 719.7 MB in the end (delta: -678.0 MB). Peak memory consumption was 471.8 MB. Max. memory is 16.1 GB. * Witness Printer took 248.72 ms. Allocated memory is still 1.2 GB. Free memory was 719.7 MB in the beginning and 699.6 MB in the end (delta: 20.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((((((a15 <= 5 && a24 == 1) || ((7 <= a15 && a24 == 1) && a15 <= 8)) || (80 < a12 && a24 == 1)) || ((a12 <= 11 && a24 == 1) && a15 <= 8)) || ((a21 <= 7 && a15 <= 5) && a12 + 49 <= 0)) || (a24 == 1 && a21 <= 8)) || ((a12 <= 11 && a24 == 1) && 10 <= a21) - InvariantResult [Line: 876]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 882]: Loop Invariant Derived loop invariant: ((((((a15 <= 5 && a24 == 1) || ((7 <= a15 && a24 == 1) && a15 <= 8)) || (80 < a12 && a24 == 1)) || ((a12 <= 11 && a24 == 1) && a15 <= 8)) || ((a21 <= 7 && a15 <= 5) && a12 + 49 <= 0)) || (a24 == 1 && a21 <= 8)) || ((a12 <= 11 && a24 == 1) && 10 <= a21) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 246 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 31.7s, OverallIterations: 16, TraceHistogramMax: 7, AutomataDifference: 17.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1901 SDtfs, 1890 SDslu, 84 SDs, 0 SdLazy, 8079 SolverSat, 1018 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3309 GetRequests, 3271 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4632occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 16 MinimizatonAttempts, 3560 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 79 NumberOfFragments, 129 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1924 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 1264 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 10051 NumberOfCodeBlocks, 10051 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 10029 ConstructedInterpolants, 0 QuantifiedInterpolants, 16545777 SizeOfPredicates, 5 NumberOfNonLiveVariables, 4242 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 22 InterpolantComputations, 16 PerfectInterpolantSequences, 16243/17172 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...