./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem10_label23.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/Problem10_label23.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7c11f213dd4563d2f887426e1fb15f3a6ccc2c98 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 20:26:51,582 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 20:26:51,585 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 20:26:51,635 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 20:26:51,636 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 20:26:51,641 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 20:26:51,643 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 20:26:51,650 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 20:26:51,653 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 20:26:51,658 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 20:26:51,660 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 20:26:51,664 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 20:26:51,665 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 20:26:51,669 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 20:26:51,670 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 20:26:51,672 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 20:26:51,673 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 20:26:51,677 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 20:26:51,680 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 20:26:51,687 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 20:26:51,690 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 20:26:51,691 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 20:26:51,693 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 20:26:51,695 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 20:26:51,702 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 20:26:51,702 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 20:26:51,702 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 20:26:51,704 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 20:26:51,704 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 20:26:51,705 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 20:26:51,706 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 20:26:51,707 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 20:26:51,708 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 20:26:51,709 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 20:26:51,710 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 20:26:51,710 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 20:26:51,711 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 20:26:51,711 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 20:26:51,712 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 20:26:51,713 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 20:26:51,723 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 20:26:51,724 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 20:26:51,750 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 20:26:51,751 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 20:26:51,752 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 20:26:51,753 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 20:26:51,753 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 20:26:51,753 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 20:26:51,753 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 20:26:51,754 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 20:26:51,754 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 20:26:51,754 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 20:26:51,754 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 20:26:51,755 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 20:26:51,755 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 20:26:51,755 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 20:26:51,755 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 20:26:51,756 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 20:26:51,756 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 20:26:51,756 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 20:26:51,756 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 20:26:51,757 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 20:26:51,757 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 20:26:51,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 20:26:51,758 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 20:26:51,758 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 20:26:51,758 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 20:26:51,758 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 20:26:51,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 20:26:51,759 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 20:26:51,759 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 20:26:51,759 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c11f213dd4563d2f887426e1fb15f3a6ccc2c98 [2020-10-25 20:26:52,147 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 20:26:52,186 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 20:26:52,193 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 20:26:52,194 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 20:26:52,196 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 20:26:52,197 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem10_label23.c [2020-10-25 20:26:52,279 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20b614a83/e5bfdd1c898b480ca5dffe71a71b0358/FLAG4edbb102b [2020-10-25 20:26:53,046 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 20:26:53,047 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem10_label23.c [2020-10-25 20:26:53,063 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20b614a83/e5bfdd1c898b480ca5dffe71a71b0358/FLAG4edbb102b [2020-10-25 20:26:53,324 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20b614a83/e5bfdd1c898b480ca5dffe71a71b0358 [2020-10-25 20:26:53,329 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 20:26:53,342 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 20:26:53,344 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 20:26:53,344 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 20:26:53,351 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 20:26:53,352 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 08:26:53" (1/1) ... [2020-10-25 20:26:53,357 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4929c819 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:26:53, skipping insertion in model container [2020-10-25 20:26:53,357 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 08:26:53" (1/1) ... [2020-10-25 20:26:53,390 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 20:26:53,451 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 20:26:53,853 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 20:26:53,864 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 20:26:54,019 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 20:26:54,053 INFO L208 MainTranslator]: Completed translation [2020-10-25 20:26:54,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:26:54 WrapperNode [2020-10-25 20:26:54,054 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 20:26:54,055 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 20:26:54,055 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 20:26:54,056 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 20:26:54,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:26:54" (1/1) ... [2020-10-25 20:26:54,095 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:26:54" (1/1) ... [2020-10-25 20:26:54,164 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 20:26:54,165 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 20:26:54,166 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 20:26:54,166 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 20:26:54,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:26:54" (1/1) ... [2020-10-25 20:26:54,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:26:54" (1/1) ... [2020-10-25 20:26:54,194 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:26:54" (1/1) ... [2020-10-25 20:26:54,198 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:26:54" (1/1) ... [2020-10-25 20:26:54,250 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:26:54" (1/1) ... [2020-10-25 20:26:54,268 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:26:54" (1/1) ... [2020-10-25 20:26:54,290 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:26:54" (1/1) ... [2020-10-25 20:26:54,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 20:26:54,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 20:26:54,308 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 20:26:54,308 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 20:26:54,309 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:26:54" (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 20:26:54,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 20:26:54,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 20:26:54,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 20:26:54,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 20:26:55,833 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 20:26:55,833 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-25 20:26:55,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 08:26:55 BoogieIcfgContainer [2020-10-25 20:26:55,836 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 20:26:55,837 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 20:26:55,838 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 20:26:55,841 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 20:26:55,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 08:26:53" (1/3) ... [2020-10-25 20:26:55,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6715de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 08:26:55, skipping insertion in model container [2020-10-25 20:26:55,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:26:54" (2/3) ... [2020-10-25 20:26:55,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6715de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 08:26:55, skipping insertion in model container [2020-10-25 20:26:55,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 08:26:55" (3/3) ... [2020-10-25 20:26:55,845 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label23.c [2020-10-25 20:26:55,857 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 20:26:55,862 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 20:26:55,874 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 20:26:55,902 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 20:26:55,902 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 20:26:55,903 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 20:26:55,903 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 20:26:55,903 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 20:26:55,903 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 20:26:55,904 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 20:26:55,904 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 20:26:55,924 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-25 20:26:55,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-25 20:26:55,932 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:26:55,933 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] [2020-10-25 20:26:55,933 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:26:55,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:26:55,940 INFO L82 PathProgramCache]: Analyzing trace with hash 291089130, now seen corresponding path program 1 times [2020-10-25 20:26:55,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:26:55,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076866987] [2020-10-25 20:26:55,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:26:56,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:26:56,219 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 20:26:56,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076866987] [2020-10-25 20:26:56,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:26:56,221 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 20:26:56,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145483553] [2020-10-25 20:26:56,227 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:26:56,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:26:56,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:26:56,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:26:56,254 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-10-25 20:26:57,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:26:57,371 INFO L93 Difference]: Finished difference Result 568 states and 982 transitions. [2020-10-25 20:26:57,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:26:57,373 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-10-25 20:26:57,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:26:57,389 INFO L225 Difference]: With dead ends: 568 [2020-10-25 20:26:57,389 INFO L226 Difference]: Without dead ends: 282 [2020-10-25 20:26:57,394 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 20:26:57,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-10-25 20:26:57,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2020-10-25 20:26:57,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-10-25 20:26:57,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 432 transitions. [2020-10-25 20:26:57,460 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 432 transitions. Word has length 46 [2020-10-25 20:26:57,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:26:57,460 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 432 transitions. [2020-10-25 20:26:57,461 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:26:57,461 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 432 transitions. [2020-10-25 20:26:57,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-25 20:26:57,469 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:26:57,469 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, 1, 1, 1, 1, 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 20:26:57,470 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 20:26:57,470 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:26:57,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:26:57,471 INFO L82 PathProgramCache]: Analyzing trace with hash -62250986, now seen corresponding path program 1 times [2020-10-25 20:26:57,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:26:57,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400177517] [2020-10-25 20:26:57,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:26:57,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:26:57,848 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-25 20:26:57,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400177517] [2020-10-25 20:26:57,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549855119] [2020-10-25 20:26:57,849 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 20:26:57,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:26:57,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 20:26:57,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 20:26:58,041 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:26:58,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 20:26:58,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-10-25 20:26:58,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348403957] [2020-10-25 20:26:58,044 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:26:58,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:26:58,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:26:58,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:26:58,045 INFO L87 Difference]: Start difference. First operand 282 states and 432 transitions. Second operand 3 states. [2020-10-25 20:26:58,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:26:58,810 INFO L93 Difference]: Finished difference Result 840 states and 1291 transitions. [2020-10-25 20:26:58,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:26:58,810 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 112 [2020-10-25 20:26:58,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:26:58,815 INFO L225 Difference]: With dead ends: 840 [2020-10-25 20:26:58,816 INFO L226 Difference]: Without dead ends: 560 [2020-10-25 20:26:58,818 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:26:58,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2020-10-25 20:26:58,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2020-10-25 20:26:58,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-10-25 20:26:58,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 770 transitions. [2020-10-25 20:26:58,846 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 770 transitions. Word has length 112 [2020-10-25 20:26:58,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:26:58,847 INFO L481 AbstractCegarLoop]: Abstraction has 560 states and 770 transitions. [2020-10-25 20:26:58,847 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:26:58,847 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 770 transitions. [2020-10-25 20:26:58,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-25 20:26:58,852 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:26:58,853 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:26:59,067 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-10-25 20:26:59,068 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:26:59,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:26:59,070 INFO L82 PathProgramCache]: Analyzing trace with hash -250269727, now seen corresponding path program 1 times [2020-10-25 20:26:59,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:26:59,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205267253] [2020-10-25 20:26:59,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:26:59,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:26:59,197 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:26:59,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205267253] [2020-10-25 20:26:59,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:26:59,198 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 20:26:59,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468088031] [2020-10-25 20:26:59,199 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:26:59,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:26:59,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:26:59,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:26:59,200 INFO L87 Difference]: Start difference. First operand 560 states and 770 transitions. Second operand 3 states. [2020-10-25 20:27:00,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:27:00,140 INFO L93 Difference]: Finished difference Result 1396 states and 1967 transitions. [2020-10-25 20:27:00,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:27:00,144 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 123 [2020-10-25 20:27:00,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:27:00,150 INFO L225 Difference]: With dead ends: 1396 [2020-10-25 20:27:00,150 INFO L226 Difference]: Without dead ends: 838 [2020-10-25 20:27:00,151 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 20:27:00,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2020-10-25 20:27:00,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 560. [2020-10-25 20:27:00,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-10-25 20:27:00,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 760 transitions. [2020-10-25 20:27:00,176 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 760 transitions. Word has length 123 [2020-10-25 20:27:00,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:27:00,176 INFO L481 AbstractCegarLoop]: Abstraction has 560 states and 760 transitions. [2020-10-25 20:27:00,176 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:27:00,176 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 760 transitions. [2020-10-25 20:27:00,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-10-25 20:27:00,181 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:27:00,182 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, 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] [2020-10-25 20:27:00,182 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-25 20:27:00,182 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:27:00,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:27:00,183 INFO L82 PathProgramCache]: Analyzing trace with hash -1657704476, now seen corresponding path program 1 times [2020-10-25 20:27:00,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:27:00,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68303276] [2020-10-25 20:27:00,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:27:00,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:27:00,378 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:27:00,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68303276] [2020-10-25 20:27:00,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:27:00,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:27:00,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926994184] [2020-10-25 20:27:00,381 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:27:00,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:27:00,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:27:00,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:27:00,384 INFO L87 Difference]: Start difference. First operand 560 states and 760 transitions. Second operand 3 states. [2020-10-25 20:27:01,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:27:01,094 INFO L93 Difference]: Finished difference Result 1257 states and 1687 transitions. [2020-10-25 20:27:01,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:27:01,095 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2020-10-25 20:27:01,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:27:01,099 INFO L225 Difference]: With dead ends: 1257 [2020-10-25 20:27:01,100 INFO L226 Difference]: Without dead ends: 699 [2020-10-25 20:27:01,101 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 20:27:01,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2020-10-25 20:27:01,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 699. [2020-10-25 20:27:01,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2020-10-25 20:27:01,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 909 transitions. [2020-10-25 20:27:01,117 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 909 transitions. Word has length 190 [2020-10-25 20:27:01,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:27:01,118 INFO L481 AbstractCegarLoop]: Abstraction has 699 states and 909 transitions. [2020-10-25 20:27:01,118 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:27:01,118 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 909 transitions. [2020-10-25 20:27:01,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-10-25 20:27:01,124 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:27:01,124 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, 2, 2, 2, 2, 2, 2, 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] [2020-10-25 20:27:01,124 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-25 20:27:01,124 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:27:01,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:27:01,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1314659577, now seen corresponding path program 1 times [2020-10-25 20:27:01,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:27:01,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543215309] [2020-10-25 20:27:01,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:27:01,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:27:01,352 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-25 20:27:01,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543215309] [2020-10-25 20:27:01,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:27:01,353 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 20:27:01,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187084366] [2020-10-25 20:27:01,355 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:27:01,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:27:01,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:27:01,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:27:01,362 INFO L87 Difference]: Start difference. First operand 699 states and 909 transitions. Second operand 3 states. [2020-10-25 20:27:02,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:27:02,096 INFO L93 Difference]: Finished difference Result 1535 states and 1975 transitions. [2020-10-25 20:27:02,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:27:02,097 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 197 [2020-10-25 20:27:02,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:27:02,102 INFO L225 Difference]: With dead ends: 1535 [2020-10-25 20:27:02,103 INFO L226 Difference]: Without dead ends: 838 [2020-10-25 20:27:02,107 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 20:27:02,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2020-10-25 20:27:02,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2020-10-25 20:27:02,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 838 states. [2020-10-25 20:27:02,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1058 transitions. [2020-10-25 20:27:02,129 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1058 transitions. Word has length 197 [2020-10-25 20:27:02,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:27:02,130 INFO L481 AbstractCegarLoop]: Abstraction has 838 states and 1058 transitions. [2020-10-25 20:27:02,130 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:27:02,130 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1058 transitions. [2020-10-25 20:27:02,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-10-25 20:27:02,134 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:27:02,135 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, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-25 20:27:02,135 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-25 20:27:02,135 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:27:02,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:27:02,136 INFO L82 PathProgramCache]: Analyzing trace with hash 919390388, now seen corresponding path program 1 times [2020-10-25 20:27:02,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:27:02,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297782910] [2020-10-25 20:27:02,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:27:02,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:27:02,497 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:27:02,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297782910] [2020-10-25 20:27:02,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:27:02,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-25 20:27:02,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534132457] [2020-10-25 20:27:02,501 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-25 20:27:02,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:27:02,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-25 20:27:02,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-10-25 20:27:02,506 INFO L87 Difference]: Start difference. First operand 838 states and 1058 transitions. Second operand 7 states. [2020-10-25 20:27:03,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:27:03,182 INFO L93 Difference]: Finished difference Result 1590 states and 2020 transitions. [2020-10-25 20:27:03,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-25 20:27:03,183 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 199 [2020-10-25 20:27:03,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:27:03,188 INFO L225 Difference]: With dead ends: 1590 [2020-10-25 20:27:03,188 INFO L226 Difference]: Without dead ends: 838 [2020-10-25 20:27:03,190 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-10-25 20:27:03,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2020-10-25 20:27:03,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2020-10-25 20:27:03,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 838 states. [2020-10-25 20:27:03,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1054 transitions. [2020-10-25 20:27:03,210 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1054 transitions. Word has length 199 [2020-10-25 20:27:03,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:27:03,211 INFO L481 AbstractCegarLoop]: Abstraction has 838 states and 1054 transitions. [2020-10-25 20:27:03,211 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-25 20:27:03,212 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1054 transitions. [2020-10-25 20:27:03,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-10-25 20:27:03,215 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:27:03,216 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-25 20:27:03,216 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-25 20:27:03,216 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:27:03,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:27:03,221 INFO L82 PathProgramCache]: Analyzing trace with hash 1711634060, now seen corresponding path program 1 times [2020-10-25 20:27:03,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:27:03,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581226623] [2020-10-25 20:27:03,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:27:03,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:27:03,366 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-25 20:27:03,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581226623] [2020-10-25 20:27:03,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:27:03,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 20:27:03,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374110091] [2020-10-25 20:27:03,369 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:27:03,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:27:03,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:27:03,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:27:03,371 INFO L87 Difference]: Start difference. First operand 838 states and 1054 transitions. Second operand 3 states. [2020-10-25 20:27:04,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:27:04,138 INFO L93 Difference]: Finished difference Result 1952 states and 2543 transitions. [2020-10-25 20:27:04,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:27:04,139 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 215 [2020-10-25 20:27:04,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:27:04,146 INFO L225 Difference]: With dead ends: 1952 [2020-10-25 20:27:04,146 INFO L226 Difference]: Without dead ends: 1255 [2020-10-25 20:27:04,148 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 20:27:04,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2020-10-25 20:27:04,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1255. [2020-10-25 20:27:04,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2020-10-25 20:27:04,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1574 transitions. [2020-10-25 20:27:04,174 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1574 transitions. Word has length 215 [2020-10-25 20:27:04,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:27:04,175 INFO L481 AbstractCegarLoop]: Abstraction has 1255 states and 1574 transitions. [2020-10-25 20:27:04,175 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:27:04,175 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1574 transitions. [2020-10-25 20:27:04,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-10-25 20:27:04,179 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:27:04,179 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-25 20:27:04,180 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-25 20:27:04,180 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:27:04,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:27:04,181 INFO L82 PathProgramCache]: Analyzing trace with hash 1784322010, now seen corresponding path program 1 times [2020-10-25 20:27:04,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:27:04,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065735517] [2020-10-25 20:27:04,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:27:04,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:27:04,386 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:27:04,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065735517] [2020-10-25 20:27:04,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:27:04,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:27:04,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958326204] [2020-10-25 20:27:04,388 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:27:04,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:27:04,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:27:04,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:27:04,390 INFO L87 Difference]: Start difference. First operand 1255 states and 1574 transitions. Second operand 3 states. [2020-10-25 20:27:05,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:27:05,088 INFO L93 Difference]: Finished difference Result 2369 states and 3003 transitions. [2020-10-25 20:27:05,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:27:05,089 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 235 [2020-10-25 20:27:05,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:27:05,095 INFO L225 Difference]: With dead ends: 2369 [2020-10-25 20:27:05,096 INFO L226 Difference]: Without dead ends: 1255 [2020-10-25 20:27:05,098 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 20:27:05,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2020-10-25 20:27:05,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1255. [2020-10-25 20:27:05,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2020-10-25 20:27:05,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1428 transitions. [2020-10-25 20:27:05,129 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1428 transitions. Word has length 235 [2020-10-25 20:27:05,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:27:05,129 INFO L481 AbstractCegarLoop]: Abstraction has 1255 states and 1428 transitions. [2020-10-25 20:27:05,130 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:27:05,130 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1428 transitions. [2020-10-25 20:27:05,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-10-25 20:27:05,134 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:27:05,134 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-25 20:27:05,135 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-25 20:27:05,135 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:27:05,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:27:05,136 INFO L82 PathProgramCache]: Analyzing trace with hash -98818840, now seen corresponding path program 1 times [2020-10-25 20:27:05,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:27:05,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352103212] [2020-10-25 20:27:05,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:27:05,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:27:05,339 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2020-10-25 20:27:05,340 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352103212] [2020-10-25 20:27:05,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:27:05,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:27:05,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662386967] [2020-10-25 20:27:05,342 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:27:05,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:27:05,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:27:05,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:27:05,343 INFO L87 Difference]: Start difference. First operand 1255 states and 1428 transitions. Second operand 3 states. [2020-10-25 20:27:06,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:27:06,013 INFO L93 Difference]: Finished difference Result 2369 states and 2711 transitions. [2020-10-25 20:27:06,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:27:06,014 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 255 [2020-10-25 20:27:06,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:27:06,020 INFO L225 Difference]: With dead ends: 2369 [2020-10-25 20:27:06,020 INFO L226 Difference]: Without dead ends: 1255 [2020-10-25 20:27:06,022 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 20:27:06,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2020-10-25 20:27:06,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1116. [2020-10-25 20:27:06,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1116 states. [2020-10-25 20:27:06,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1229 transitions. [2020-10-25 20:27:06,043 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1229 transitions. Word has length 255 [2020-10-25 20:27:06,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:27:06,044 INFO L481 AbstractCegarLoop]: Abstraction has 1116 states and 1229 transitions. [2020-10-25 20:27:06,044 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:27:06,044 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1229 transitions. [2020-10-25 20:27:06,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-10-25 20:27:06,050 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:27:06,050 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, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:27:06,050 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-25 20:27:06,051 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:27:06,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:27:06,051 INFO L82 PathProgramCache]: Analyzing trace with hash 1837986583, now seen corresponding path program 1 times [2020-10-25 20:27:06,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:27:06,052 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163975396] [2020-10-25 20:27:06,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:27:06,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:27:06,248 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 281 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-10-25 20:27:06,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163975396] [2020-10-25 20:27:06,249 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:27:06,249 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:27:06,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480390775] [2020-10-25 20:27:06,250 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:27:06,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:27:06,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:27:06,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:27:06,251 INFO L87 Difference]: Start difference. First operand 1116 states and 1229 transitions. Second operand 3 states. [2020-10-25 20:27:06,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:27:06,905 INFO L93 Difference]: Finished difference Result 2230 states and 2482 transitions. [2020-10-25 20:27:06,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:27:06,906 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 308 [2020-10-25 20:27:06,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:27:06,913 INFO L225 Difference]: With dead ends: 2230 [2020-10-25 20:27:06,913 INFO L226 Difference]: Without dead ends: 1255 [2020-10-25 20:27:06,914 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 20:27:06,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2020-10-25 20:27:06,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1255. [2020-10-25 20:27:06,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2020-10-25 20:27:06,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1383 transitions. [2020-10-25 20:27:06,937 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1383 transitions. Word has length 308 [2020-10-25 20:27:06,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:27:06,938 INFO L481 AbstractCegarLoop]: Abstraction has 1255 states and 1383 transitions. [2020-10-25 20:27:06,938 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:27:06,938 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1383 transitions. [2020-10-25 20:27:06,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2020-10-25 20:27:06,944 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:27:06,944 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:27:06,944 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-25 20:27:06,945 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:27:06,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:27:06,945 INFO L82 PathProgramCache]: Analyzing trace with hash -1259190210, now seen corresponding path program 1 times [2020-10-25 20:27:06,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:27:06,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336251222] [2020-10-25 20:27:06,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:27:06,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:27:07,182 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2020-10-25 20:27:07,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336251222] [2020-10-25 20:27:07,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:27:07,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:27:07,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883457004] [2020-10-25 20:27:07,184 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:27:07,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:27:07,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:27:07,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:27:07,185 INFO L87 Difference]: Start difference. First operand 1255 states and 1383 transitions. Second operand 3 states. [2020-10-25 20:27:08,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:27:08,035 INFO L93 Difference]: Finished difference Result 2230 states and 2467 transitions. [2020-10-25 20:27:08,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:27:08,036 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 318 [2020-10-25 20:27:08,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:27:08,047 INFO L225 Difference]: With dead ends: 2230 [2020-10-25 20:27:08,047 INFO L226 Difference]: Without dead ends: 2228 [2020-10-25 20:27:08,048 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 20:27:08,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2228 states. [2020-10-25 20:27:08,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2228 to 1255. [2020-10-25 20:27:08,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2020-10-25 20:27:08,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1383 transitions. [2020-10-25 20:27:08,082 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1383 transitions. Word has length 318 [2020-10-25 20:27:08,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:27:08,083 INFO L481 AbstractCegarLoop]: Abstraction has 1255 states and 1383 transitions. [2020-10-25 20:27:08,083 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:27:08,083 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1383 transitions. [2020-10-25 20:27:08,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2020-10-25 20:27:08,090 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:27:08,090 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:27:08,091 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-25 20:27:08,091 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:27:08,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:27:08,091 INFO L82 PathProgramCache]: Analyzing trace with hash 1536206532, now seen corresponding path program 1 times [2020-10-25 20:27:08,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:27:08,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451431979] [2020-10-25 20:27:08,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:27:08,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:27:08,447 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 311 trivial. 0 not checked. [2020-10-25 20:27:08,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451431979] [2020-10-25 20:27:08,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349194706] [2020-10-25 20:27:08,448 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 20:27:08,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:27:08,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 20:27:08,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 20:27:08,929 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2020-10-25 20:27:08,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 20:27:08,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2020-10-25 20:27:08,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538956121] [2020-10-25 20:27:08,931 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:27:08,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:27:08,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:27:08,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:27:08,932 INFO L87 Difference]: Start difference. First operand 1255 states and 1383 transitions. Second operand 3 states. [2020-10-25 20:27:09,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:27:09,723 INFO L93 Difference]: Finished difference Result 1950 states and 2157 transitions. [2020-10-25 20:27:09,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:27:09,724 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 354 [2020-10-25 20:27:09,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:27:09,726 INFO L225 Difference]: With dead ends: 1950 [2020-10-25 20:27:09,727 INFO L226 Difference]: Without dead ends: 0 [2020-10-25 20:27:09,731 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 353 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 20:27:09,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-25 20:27:09,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-25 20:27:09,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-25 20:27:09,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-25 20:27:09,732 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 354 [2020-10-25 20:27:09,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:27:09,733 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-25 20:27:09,733 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:27:09,733 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-25 20:27:09,733 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 20:27:09,944 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-10-25 20:27:09,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-25 20:27:10,199 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 25 [2020-10-25 20:27:10,352 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 25 [2020-10-25 20:27:10,356 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-25 20:27:10,356 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-25 20:27:10,356 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-25 20:27:10,356 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-25 20:27:10,356 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-25 20:27:10,357 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-25 20:27:10,357 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-25 20:27:10,357 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-25 20:27:10,357 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-25 20:27:10,357 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-25 20:27:10,357 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-25 20:27:10,357 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-25 20:27:10,357 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-25 20:27:10,357 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-25 20:27:10,357 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,357 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,357 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,357 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,358 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,358 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,358 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-25 20:27:10,358 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-25 20:27:10,358 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-25 20:27:10,361 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-25 20:27:10,361 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-25 20:27:10,362 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-25 20:27:10,362 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-25 20:27:10,362 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-25 20:27:10,362 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-25 20:27:10,362 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-25 20:27:10,362 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-25 20:27:10,363 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,363 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,363 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,363 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,363 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,363 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-25 20:27:10,363 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-25 20:27:10,364 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-25 20:27:10,364 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-25 20:27:10,364 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-25 20:27:10,364 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-25 20:27:10,364 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-25 20:27:10,364 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-25 20:27:10,364 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-25 20:27:10,365 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-25 20:27:10,365 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-25 20:27:10,365 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-25 20:27:10,365 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-25 20:27:10,365 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-25 20:27:10,365 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,365 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,366 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,366 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,366 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,366 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-25 20:27:10,366 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-25 20:27:10,366 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-25 20:27:10,366 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-25 20:27:10,367 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-25 20:27:10,367 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-25 20:27:10,367 INFO L270 CegarLoopResult]: At program point L575(lines 22 576) the Hoare annotation is: (let ((.cse2 (= ~a10~0 1)) (.cse0 (= 14 ~a4~0)) (.cse1 (= ~a12~0 0))) (or (and .cse0 .cse1 (<= ~a19~0 9) (<= 2 ~a10~0)) (and (<= 0 (+ ~a1~0 12)) .cse2 .cse0 .cse1) (and .cse2 .cse0 (<= 9 ~a19~0) .cse1) (and .cse0 (= ~a10~0 0) .cse1))) [2020-10-25 20:27:10,367 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-25 20:27:10,368 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-25 20:27:10,368 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-25 20:27:10,368 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-25 20:27:10,368 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,368 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,368 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,368 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,369 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,369 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-25 20:27:10,369 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-25 20:27:10,369 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-25 20:27:10,369 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-25 20:27:10,369 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-25 20:27:10,369 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-25 20:27:10,370 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-25 20:27:10,370 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-25 20:27:10,370 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-25 20:27:10,370 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-25 20:27:10,370 INFO L277 CegarLoopResult]: At program point L578(lines 578 594) the Hoare annotation is: true [2020-10-25 20:27:10,370 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-25 20:27:10,370 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-25 20:27:10,371 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-25 20:27:10,371 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,372 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,372 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,372 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,372 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,372 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-25 20:27:10,372 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-25 20:27:10,372 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-25 20:27:10,373 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-25 20:27:10,373 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-25 20:27:10,373 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-25 20:27:10,373 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-25 20:27:10,373 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-25 20:27:10,373 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 20:27:10,374 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-25 20:27:10,374 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,374 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,374 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,374 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,374 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,375 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-25 20:27:10,375 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-25 20:27:10,375 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-25 20:27:10,375 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-25 20:27:10,375 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-25 20:27:10,375 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-25 20:27:10,376 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-25 20:27:10,376 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-25 20:27:10,376 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-25 20:27:10,376 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-25 20:27:10,376 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-25 20:27:10,376 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-25 20:27:10,378 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (let ((.cse2 (= ~a10~0 1)) (.cse0 (= 14 ~a4~0)) (.cse1 (= ~a12~0 0))) (or (and .cse0 .cse1 (<= ~a19~0 9) (<= 2 ~a10~0)) (and (<= 0 (+ ~a1~0 12)) .cse2 .cse0 .cse1) (and .cse2 .cse0 (<= 9 ~a19~0) .cse1) (and .cse0 (= ~a10~0 0) .cse1))) [2020-10-25 20:27:10,378 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-25 20:27:10,378 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,378 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,379 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,379 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,379 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-25 20:27:10,379 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,379 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,379 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-25 20:27:10,380 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-25 20:27:10,380 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-25 20:27:10,380 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-25 20:27:10,380 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-25 20:27:10,380 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-25 20:27:10,380 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-25 20:27:10,380 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-25 20:27:10,381 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-25 20:27:10,381 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-25 20:27:10,381 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-25 20:27:10,381 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 20:27:10,381 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-25 20:27:10,381 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-25 20:27:10,382 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,382 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,382 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,382 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,382 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,382 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,382 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-25 20:27:10,383 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-25 20:27:10,383 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-25 20:27:10,383 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-25 20:27:10,383 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-25 20:27:10,383 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-25 20:27:10,383 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-25 20:27:10,383 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-25 20:27:10,384 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-25 20:27:10,384 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-25 20:27:10,384 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-25 20:27:10,384 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-25 20:27:10,384 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 20:27:10,384 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-25 20:27:10,385 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-25 20:27:10,385 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-25 20:27:10,385 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,385 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,385 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,385 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,386 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,386 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,386 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-25 20:27:10,386 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-25 20:27:10,386 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-25 20:27:10,387 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-25 20:27:10,387 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-25 20:27:10,387 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-25 20:27:10,387 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-25 20:27:10,387 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-25 20:27:10,388 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-25 20:27:10,388 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-25 20:27:10,388 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-25 20:27:10,388 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-25 20:27:10,388 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-25 20:27:10,388 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,389 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,389 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,389 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,389 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,389 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-25 20:27:10,389 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,390 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-25 20:27:10,390 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-25 20:27:10,390 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-25 20:27:10,390 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-25 20:27:10,390 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-25 20:27:10,391 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-25 20:27:10,391 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-25 20:27:10,391 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-25 20:27:10,391 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-25 20:27:10,391 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-25 20:27:10,391 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-25 20:27:10,391 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-25 20:27:10,392 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-25 20:27:10,392 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,392 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,392 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,392 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,392 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,393 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:27:10,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 08:27:10 BoogieIcfgContainer [2020-10-25 20:27:10,423 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 20:27:10,423 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 20:27:10,424 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 20:27:10,424 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 20:27:10,424 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 08:26:55" (3/4) ... [2020-10-25 20:27:10,428 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-25 20:27:10,461 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-25 20:27:10,462 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-25 20:27:10,463 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 20:27:10,465 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 20:27:10,620 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 20:27:10,620 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 20:27:10,621 INFO L168 Benchmark]: Toolchain (without parser) took 17288.62 ms. Allocated memory was 46.1 MB in the beginning and 339.7 MB in the end (delta: 293.6 MB). Free memory was 22.6 MB in the beginning and 192.4 MB in the end (delta: -169.9 MB). Peak memory consumption was 125.6 MB. Max. memory is 16.1 GB. [2020-10-25 20:27:10,622 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 46.1 MB. Free memory was 26.8 MB in the beginning and 26.7 MB in the end (delta: 28.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 20:27:10,622 INFO L168 Benchmark]: CACSL2BoogieTranslator took 710.79 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 21.9 MB in the beginning and 27.6 MB in the end (delta: -5.7 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2020-10-25 20:27:10,622 INFO L168 Benchmark]: Boogie Procedure Inliner took 109.52 ms. Allocated memory is still 56.6 MB. Free memory was 27.5 MB in the beginning and 33.2 MB in the end (delta: -5.8 MB). Peak memory consumption was 3.0 MB. Max. memory is 16.1 GB. [2020-10-25 20:27:10,623 INFO L168 Benchmark]: Boogie Preprocessor took 139.83 ms. Allocated memory is still 56.6 MB. Free memory was 33.2 MB in the beginning and 28.1 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-25 20:27:10,623 INFO L168 Benchmark]: RCFGBuilder took 1528.76 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 28.1 MB in the beginning and 43.9 MB in the end (delta: -15.8 MB). Peak memory consumption was 19.4 MB. Max. memory is 16.1 GB. [2020-10-25 20:27:10,624 INFO L168 Benchmark]: TraceAbstraction took 14585.38 ms. Allocated memory was 69.2 MB in the beginning and 339.7 MB in the end (delta: 270.5 MB). Free memory was 43.4 MB in the beginning and 208.2 MB in the end (delta: -164.7 MB). Peak memory consumption was 104.1 MB. Max. memory is 16.1 GB. [2020-10-25 20:27:10,624 INFO L168 Benchmark]: Witness Printer took 196.70 ms. Allocated memory is still 339.7 MB. Free memory was 208.2 MB in the beginning and 192.4 MB in the end (delta: 15.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-10-25 20:27:10,626 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 46.1 MB. Free memory was 26.8 MB in the beginning and 26.7 MB in the end (delta: 28.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 710.79 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 21.9 MB in the beginning and 27.6 MB in the end (delta: -5.7 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 109.52 ms. Allocated memory is still 56.6 MB. Free memory was 27.5 MB in the beginning and 33.2 MB in the end (delta: -5.8 MB). Peak memory consumption was 3.0 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 139.83 ms. Allocated memory is still 56.6 MB. Free memory was 33.2 MB in the beginning and 28.1 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1528.76 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 28.1 MB in the beginning and 43.9 MB in the end (delta: -15.8 MB). Peak memory consumption was 19.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 14585.38 ms. Allocated memory was 69.2 MB in the beginning and 339.7 MB in the end (delta: 270.5 MB). Free memory was 43.4 MB in the beginning and 208.2 MB in the end (delta: -164.7 MB). Peak memory consumption was 104.1 MB. Max. memory is 16.1 GB. * Witness Printer took 196.70 ms. Allocated memory is still 339.7 MB. Free memory was 208.2 MB in the beginning and 192.4 MB in the end (delta: 15.7 MB). Peak memory consumption was 16.8 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: 578]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 584]: Loop Invariant Derived loop invariant: (((((14 == a4 && a12 == 0) && a19 <= 9) && 2 <= a10) || (((0 <= a1 + 12 && a10 == 1) && 14 == a4) && a12 == 0)) || (((a10 == 1 && 14 == a4) && 9 <= a19) && a12 == 0)) || ((14 == a4 && a10 == 0) && a12 == 0) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (((((14 == a4 && a12 == 0) && a19 <= 9) && 2 <= a10) || (((0 <= a1 + 12 && a10 == 1) && 14 == a4) && a12 == 0)) || (((a10 == 1 && 14 == a4) && 9 <= a19) && a12 == 0)) || ((14 == a4 && a10 == 0) && a12 == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14.0s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 9.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1259 SDtfs, 1157 SDslu, 57 SDs, 0 SdLazy, 4525 SolverSat, 636 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 499 GetRequests, 479 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1255occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 1390 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 35 NumberOfFragments, 105 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1168 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 114 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 3018 NumberOfCodeBlocks, 3018 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 3004 ConstructedInterpolants, 0 QuantifiedInterpolants, 2178874 SizeOfPredicates, 2 NumberOfNonLiveVariables, 698 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 14 InterpolantComputations, 12 PerfectInterpolantSequences, 2506/2606 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...