./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem11_label35.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a995ef4a-b125-4b8b-b1d4-14ab18eedd53/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a995ef4a-b125-4b8b-b1d4-14ab18eedd53/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a995ef4a-b125-4b8b-b1d4-14ab18eedd53/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a995ef4a-b125-4b8b-b1d4-14ab18eedd53/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label35.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a995ef4a-b125-4b8b-b1d4-14ab18eedd53/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a995ef4a-b125-4b8b-b1d4-14ab18eedd53/bin/uautomizer --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 963c90c0ca14dadcc060ab8f81569883db0a69a4 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:19:04,009 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:19:04,013 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:19:04,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:19:04,091 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:19:04,098 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:19:04,101 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:19:04,107 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:19:04,110 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:19:04,118 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:19:04,120 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:19:04,123 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:19:04,124 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:19:04,128 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:19:04,130 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:19:04,133 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:19:04,135 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:19:04,140 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:19:04,144 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:19:04,154 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:19:04,157 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:19:04,159 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:19:04,162 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:19:04,164 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:19:04,175 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:19:04,176 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:19:04,177 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:19:04,179 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:19:04,181 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:19:04,182 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:19:04,183 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:19:04,184 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:19:04,187 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:19:04,189 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:19:04,190 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:19:04,191 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:19:04,192 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:19:04,193 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:19:04,193 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:19:04,196 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:19:04,197 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:19:04,201 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a995ef4a-b125-4b8b-b1d4-14ab18eedd53/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 00:19:04,253 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:19:04,253 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:19:04,260 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:19:04,261 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:19:04,261 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:19:04,261 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:19:04,262 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:19:04,262 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:19:04,263 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:19:04,263 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:19:04,265 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:19:04,265 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:19:04,265 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:19:04,266 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:19:04,266 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:19:04,267 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:19:04,267 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:19:04,267 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:19:04,268 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:19:04,268 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:19:04,269 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:19:04,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:19:04,269 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:19:04,270 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:19:04,270 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:19:04,270 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:19:04,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:19:04,271 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:19:04,272 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:19:04,272 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:/tmp/vcloud-vcloud-master/worker/run_dir_a995ef4a-b125-4b8b-b1d4-14ab18eedd53/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a995ef4a-b125-4b8b-b1d4-14ab18eedd53/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 963c90c0ca14dadcc060ab8f81569883db0a69a4 [2020-11-30 00:19:04,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:19:04,748 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:19:04,753 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:19:04,754 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:19:04,759 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:19:04,761 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a995ef4a-b125-4b8b-b1d4-14ab18eedd53/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem11_label35.c [2020-11-30 00:19:04,881 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a995ef4a-b125-4b8b-b1d4-14ab18eedd53/bin/uautomizer/data/5067f8a10/56773788c4d24ce3b5260f0aa0a0cbdd/FLAG99f304d62 [2020-11-30 00:19:05,725 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:19:05,726 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a995ef4a-b125-4b8b-b1d4-14ab18eedd53/sv-benchmarks/c/eca-rers2012/Problem11_label35.c [2020-11-30 00:19:05,753 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a995ef4a-b125-4b8b-b1d4-14ab18eedd53/bin/uautomizer/data/5067f8a10/56773788c4d24ce3b5260f0aa0a0cbdd/FLAG99f304d62 [2020-11-30 00:19:05,886 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a995ef4a-b125-4b8b-b1d4-14ab18eedd53/bin/uautomizer/data/5067f8a10/56773788c4d24ce3b5260f0aa0a0cbdd [2020-11-30 00:19:05,891 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:19:05,894 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:19:05,900 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:19:05,900 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:19:05,905 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:19:05,906 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:19:05" (1/1) ... [2020-11-30 00:19:05,910 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@729a4a03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:05, skipping insertion in model container [2020-11-30 00:19:05,910 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:19:05" (1/1) ... [2020-11-30 00:19:05,922 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:19:06,021 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:19:06,727 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:19:06,739 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:19:07,022 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:19:07,045 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:19:07,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:07 WrapperNode [2020-11-30 00:19:07,048 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:19:07,051 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:19:07,051 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:19:07,052 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:19:07,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:07" (1/1) ... [2020-11-30 00:19:07,109 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:07" (1/1) ... [2020-11-30 00:19:07,342 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:19:07,343 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:19:07,362 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:19:07,363 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:19:07,373 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:07" (1/1) ... [2020-11-30 00:19:07,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:07" (1/1) ... [2020-11-30 00:19:07,406 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:07" (1/1) ... [2020-11-30 00:19:07,407 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:07" (1/1) ... [2020-11-30 00:19:07,469 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:07" (1/1) ... [2020-11-30 00:19:07,532 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:07" (1/1) ... [2020-11-30 00:19:07,577 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:07" (1/1) ... [2020-11-30 00:19:07,606 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:19:07,609 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:19:07,609 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:19:07,609 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:19:07,611 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a995ef4a-b125-4b8b-b1d4-14ab18eedd53/bin/uautomizer/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 [2020-11-30 00:19:07,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:19:07,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:19:07,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:19:07,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:19:10,645 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:19:10,645 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-30 00:19:10,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:19:10 BoogieIcfgContainer [2020-11-30 00:19:10,650 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:19:10,652 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:19:10,654 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:19:10,659 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:19:10,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:19:05" (1/3) ... [2020-11-30 00:19:10,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69b61909 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:19:10, skipping insertion in model container [2020-11-30 00:19:10,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:07" (2/3) ... [2020-11-30 00:19:10,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69b61909 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:19:10, skipping insertion in model container [2020-11-30 00:19:10,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:19:10" (3/3) ... [2020-11-30 00:19:10,663 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label35.c [2020-11-30 00:19:10,684 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:19:10,691 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 00:19:10,703 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 00:19:10,736 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:19:10,736 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:19:10,737 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:19:10,737 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:19:10,737 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:19:10,737 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:19:10,738 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:19:10,738 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:19:10,772 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states. [2020-11-30 00:19:10,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-11-30 00:19:10,784 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:19:10,785 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:19:10,786 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:19:10,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:19:10,792 INFO L82 PathProgramCache]: Analyzing trace with hash -2074400678, now seen corresponding path program 1 times [2020-11-30 00:19:10,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:19:10,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015572416] [2020-11-30 00:19:10,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:19:11,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:19:11,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:19:11,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015572416] [2020-11-30 00:19:11,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:19:11,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:19:11,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426939909] [2020-11-30 00:19:11,283 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:19:11,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:19:11,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:19:11,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:19:11,310 INFO L87 Difference]: Start difference. First operand 284 states. Second operand 3 states. [2020-11-30 00:19:13,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:19:13,668 INFO L93 Difference]: Finished difference Result 762 states and 1346 transitions. [2020-11-30 00:19:13,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:19:13,669 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2020-11-30 00:19:13,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:19:13,690 INFO L225 Difference]: With dead ends: 762 [2020-11-30 00:19:13,690 INFO L226 Difference]: Without dead ends: 413 [2020-11-30 00:19:13,696 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 [2020-11-30 00:19:13,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2020-11-30 00:19:13,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2020-11-30 00:19:13,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2020-11-30 00:19:13,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 599 transitions. [2020-11-30 00:19:13,801 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 599 transitions. Word has length 58 [2020-11-30 00:19:13,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:19:13,803 INFO L481 AbstractCegarLoop]: Abstraction has 413 states and 599 transitions. [2020-11-30 00:19:13,803 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:19:13,804 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 599 transitions. [2020-11-30 00:19:13,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-11-30 00:19:13,814 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:19:13,816 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:19:13,818 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 00:19:13,818 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:19:13,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:19:13,823 INFO L82 PathProgramCache]: Analyzing trace with hash 207715250, now seen corresponding path program 1 times [2020-11-30 00:19:13,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:19:13,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372945343] [2020-11-30 00:19:13,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:19:13,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:19:14,040 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:19:14,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372945343] [2020-11-30 00:19:14,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:19:14,041 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:19:14,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274648587] [2020-11-30 00:19:14,044 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:19:14,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:19:14,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:19:14,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:19:14,046 INFO L87 Difference]: Start difference. First operand 413 states and 599 transitions. Second operand 3 states. [2020-11-30 00:19:15,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:19:15,506 INFO L93 Difference]: Finished difference Result 1211 states and 1763 transitions. [2020-11-30 00:19:15,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:19:15,508 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2020-11-30 00:19:15,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:19:15,519 INFO L225 Difference]: With dead ends: 1211 [2020-11-30 00:19:15,520 INFO L226 Difference]: Without dead ends: 800 [2020-11-30 00:19:15,526 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 [2020-11-30 00:19:15,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2020-11-30 00:19:15,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 789. [2020-11-30 00:19:15,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 789 states. [2020-11-30 00:19:15,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1084 transitions. [2020-11-30 00:19:15,612 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1084 transitions. Word has length 126 [2020-11-30 00:19:15,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:19:15,615 INFO L481 AbstractCegarLoop]: Abstraction has 789 states and 1084 transitions. [2020-11-30 00:19:15,615 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:19:15,616 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1084 transitions. [2020-11-30 00:19:15,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-11-30 00:19:15,623 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:19:15,624 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:19:15,624 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 00:19:15,625 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:19:15,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:19:15,626 INFO L82 PathProgramCache]: Analyzing trace with hash -1180402314, now seen corresponding path program 1 times [2020-11-30 00:19:15,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:19:15,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734061053] [2020-11-30 00:19:15,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:19:15,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:19:15,871 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:19:15,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734061053] [2020-11-30 00:19:15,872 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:19:15,872 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:19:15,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842727576] [2020-11-30 00:19:15,873 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:19:15,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:19:15,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:19:15,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:19:15,875 INFO L87 Difference]: Start difference. First operand 789 states and 1084 transitions. Second operand 3 states. [2020-11-30 00:19:17,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:19:17,456 INFO L93 Difference]: Finished difference Result 2314 states and 3184 transitions. [2020-11-30 00:19:17,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:19:17,458 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 127 [2020-11-30 00:19:17,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:19:17,473 INFO L225 Difference]: With dead ends: 2314 [2020-11-30 00:19:17,473 INFO L226 Difference]: Without dead ends: 1527 [2020-11-30 00:19:17,476 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 [2020-11-30 00:19:17,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1527 states. [2020-11-30 00:19:17,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1527 to 1526. [2020-11-30 00:19:17,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1526 states. [2020-11-30 00:19:17,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 1857 transitions. [2020-11-30 00:19:17,555 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 1857 transitions. Word has length 127 [2020-11-30 00:19:17,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:19:17,558 INFO L481 AbstractCegarLoop]: Abstraction has 1526 states and 1857 transitions. [2020-11-30 00:19:17,559 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:19:17,559 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 1857 transitions. [2020-11-30 00:19:17,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-11-30 00:19:17,568 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:19:17,569 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:19:17,569 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 00:19:17,570 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:19:17,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:19:17,573 INFO L82 PathProgramCache]: Analyzing trace with hash 521599633, now seen corresponding path program 1 times [2020-11-30 00:19:17,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:19:17,575 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751776527] [2020-11-30 00:19:17,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:19:17,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:19:17,857 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:19:17,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751776527] [2020-11-30 00:19:17,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:19:17,858 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:19:17,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653712012] [2020-11-30 00:19:17,860 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:19:17,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:19:17,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:19:17,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:19:17,865 INFO L87 Difference]: Start difference. First operand 1526 states and 1857 transitions. Second operand 3 states. [2020-11-30 00:19:19,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:19:19,577 INFO L93 Difference]: Finished difference Result 3614 states and 4471 transitions. [2020-11-30 00:19:19,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:19:19,578 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 185 [2020-11-30 00:19:19,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:19:19,596 INFO L225 Difference]: With dead ends: 3614 [2020-11-30 00:19:19,597 INFO L226 Difference]: Without dead ends: 2274 [2020-11-30 00:19:19,601 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 [2020-11-30 00:19:19,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2274 states. [2020-11-30 00:19:19,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2274 to 1897. [2020-11-30 00:19:19,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1897 states. [2020-11-30 00:19:19,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1897 states to 1897 states and 2306 transitions. [2020-11-30 00:19:19,667 INFO L78 Accepts]: Start accepts. Automaton has 1897 states and 2306 transitions. Word has length 185 [2020-11-30 00:19:19,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:19:19,670 INFO L481 AbstractCegarLoop]: Abstraction has 1897 states and 2306 transitions. [2020-11-30 00:19:19,670 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:19:19,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1897 states and 2306 transitions. [2020-11-30 00:19:19,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-11-30 00:19:19,678 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:19:19,679 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:19:19,679 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 00:19:19,680 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:19:19,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:19:19,680 INFO L82 PathProgramCache]: Analyzing trace with hash 1672205402, now seen corresponding path program 1 times [2020-11-30 00:19:19,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:19:19,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908912063] [2020-11-30 00:19:19,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:19:19,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:19:20,038 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-11-30 00:19:20,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908912063] [2020-11-30 00:19:20,039 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:19:20,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:19:20,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960381242] [2020-11-30 00:19:20,040 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:19:20,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:19:20,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:19:20,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:19:20,042 INFO L87 Difference]: Start difference. First operand 1897 states and 2306 transitions. Second operand 3 states. [2020-11-30 00:19:21,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:19:21,621 INFO L93 Difference]: Finished difference Result 4354 states and 5296 transitions. [2020-11-30 00:19:21,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:19:21,622 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 239 [2020-11-30 00:19:21,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:19:21,639 INFO L225 Difference]: With dead ends: 4354 [2020-11-30 00:19:21,640 INFO L226 Difference]: Without dead ends: 2275 [2020-11-30 00:19:21,644 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 [2020-11-30 00:19:21,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2275 states. [2020-11-30 00:19:21,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2275 to 2265. [2020-11-30 00:19:21,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2265 states. [2020-11-30 00:19:21,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2265 states to 2265 states and 2748 transitions. [2020-11-30 00:19:21,721 INFO L78 Accepts]: Start accepts. Automaton has 2265 states and 2748 transitions. Word has length 239 [2020-11-30 00:19:21,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:19:21,722 INFO L481 AbstractCegarLoop]: Abstraction has 2265 states and 2748 transitions. [2020-11-30 00:19:21,722 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:19:21,722 INFO L276 IsEmpty]: Start isEmpty. Operand 2265 states and 2748 transitions. [2020-11-30 00:19:21,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-11-30 00:19:21,729 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:19:21,729 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:19:21,730 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 00:19:21,730 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:19:21,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:19:21,731 INFO L82 PathProgramCache]: Analyzing trace with hash 205958505, now seen corresponding path program 1 times [2020-11-30 00:19:21,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:19:21,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351902439] [2020-11-30 00:19:21,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:19:21,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:19:22,068 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-11-30 00:19:22,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351902439] [2020-11-30 00:19:22,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:19:22,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:19:22,072 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120686277] [2020-11-30 00:19:22,072 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:19:22,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:19:22,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:19:22,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:19:22,076 INFO L87 Difference]: Start difference. First operand 2265 states and 2748 transitions. Second operand 3 states. [2020-11-30 00:19:23,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:19:23,876 INFO L93 Difference]: Finished difference Result 5087 states and 6238 transitions. [2020-11-30 00:19:23,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:19:23,878 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 240 [2020-11-30 00:19:23,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:19:23,898 INFO L225 Difference]: With dead ends: 5087 [2020-11-30 00:19:23,899 INFO L226 Difference]: Without dead ends: 2824 [2020-11-30 00:19:23,903 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 [2020-11-30 00:19:23,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2824 states. [2020-11-30 00:19:23,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2824 to 2633. [2020-11-30 00:19:23,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2633 states. [2020-11-30 00:19:23,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2633 states to 2633 states and 3193 transitions. [2020-11-30 00:19:23,986 INFO L78 Accepts]: Start accepts. Automaton has 2633 states and 3193 transitions. Word has length 240 [2020-11-30 00:19:23,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:19:23,987 INFO L481 AbstractCegarLoop]: Abstraction has 2633 states and 3193 transitions. [2020-11-30 00:19:23,987 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:19:23,987 INFO L276 IsEmpty]: Start isEmpty. Operand 2633 states and 3193 transitions. [2020-11-30 00:19:23,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-11-30 00:19:23,994 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:19:23,995 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-30 00:19:23,995 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-30 00:19:23,996 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:19:23,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:19:23,996 INFO L82 PathProgramCache]: Analyzing trace with hash 1428673655, now seen corresponding path program 1 times [2020-11-30 00:19:23,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:19:23,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122232723] [2020-11-30 00:19:23,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:19:24,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:19:24,383 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 200 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:19:24,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122232723] [2020-11-30 00:19:24,384 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:19:24,384 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:19:24,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412716868] [2020-11-30 00:19:24,386 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:19:24,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:19:24,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:19:24,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:19:24,388 INFO L87 Difference]: Start difference. First operand 2633 states and 3193 transitions. Second operand 4 states. [2020-11-30 00:19:27,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:19:27,372 INFO L93 Difference]: Finished difference Result 8420 states and 10435 transitions. [2020-11-30 00:19:27,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:19:27,374 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 260 [2020-11-30 00:19:27,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:19:27,416 INFO L225 Difference]: With dead ends: 8420 [2020-11-30 00:19:27,417 INFO L226 Difference]: Without dead ends: 5789 [2020-11-30 00:19:27,423 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:19:27,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5789 states. [2020-11-30 00:19:27,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5789 to 5418. [2020-11-30 00:19:27,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5418 states. [2020-11-30 00:19:27,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5418 states to 5418 states and 6489 transitions. [2020-11-30 00:19:27,572 INFO L78 Accepts]: Start accepts. Automaton has 5418 states and 6489 transitions. Word has length 260 [2020-11-30 00:19:27,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:19:27,573 INFO L481 AbstractCegarLoop]: Abstraction has 5418 states and 6489 transitions. [2020-11-30 00:19:27,573 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:19:27,573 INFO L276 IsEmpty]: Start isEmpty. Operand 5418 states and 6489 transitions. [2020-11-30 00:19:27,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2020-11-30 00:19:27,582 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:19:27,582 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-30 00:19:27,583 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-30 00:19:27,583 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:19:27,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:19:27,584 INFO L82 PathProgramCache]: Analyzing trace with hash -76396994, now seen corresponding path program 1 times [2020-11-30 00:19:27,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:19:27,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197350753] [2020-11-30 00:19:27,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:19:27,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:19:27,916 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 200 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:19:27,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197350753] [2020-11-30 00:19:27,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:19:27,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:19:27,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204941863] [2020-11-30 00:19:27,919 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:19:27,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:19:27,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:19:27,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:19:27,920 INFO L87 Difference]: Start difference. First operand 5418 states and 6489 transitions. Second operand 4 states. [2020-11-30 00:19:30,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:19:30,383 INFO L93 Difference]: Finished difference Result 14344 states and 17467 transitions. [2020-11-30 00:19:30,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:19:30,384 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 270 [2020-11-30 00:19:30,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:19:30,452 INFO L225 Difference]: With dead ends: 14344 [2020-11-30 00:19:30,452 INFO L226 Difference]: Without dead ends: 8928 [2020-11-30 00:19:30,463 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:19:30,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8928 states. [2020-11-30 00:19:30,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8928 to 8551. [2020-11-30 00:19:30,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8551 states. [2020-11-30 00:19:30,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8551 states to 8551 states and 10279 transitions. [2020-11-30 00:19:30,724 INFO L78 Accepts]: Start accepts. Automaton has 8551 states and 10279 transitions. Word has length 270 [2020-11-30 00:19:30,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:19:30,725 INFO L481 AbstractCegarLoop]: Abstraction has 8551 states and 10279 transitions. [2020-11-30 00:19:30,725 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:19:30,725 INFO L276 IsEmpty]: Start isEmpty. Operand 8551 states and 10279 transitions. [2020-11-30 00:19:30,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2020-11-30 00:19:30,735 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:19:30,735 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:19:30,736 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-30 00:19:30,736 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:19:30,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:19:30,737 INFO L82 PathProgramCache]: Analyzing trace with hash 1715265399, now seen corresponding path program 1 times [2020-11-30 00:19:30,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:19:30,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303351887] [2020-11-30 00:19:30,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:19:30,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:19:31,124 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:19:31,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303351887] [2020-11-30 00:19:31,124 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:19:31,125 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:19:31,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451336591] [2020-11-30 00:19:31,125 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:19:31,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:19:31,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:19:31,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:19:31,132 INFO L87 Difference]: Start difference. First operand 8551 states and 10279 transitions. Second operand 3 states. [2020-11-30 00:19:32,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:19:32,736 INFO L93 Difference]: Finished difference Result 20820 states and 25202 transitions. [2020-11-30 00:19:32,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:19:32,737 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 270 [2020-11-30 00:19:32,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:19:32,802 INFO L225 Difference]: With dead ends: 20820 [2020-11-30 00:19:32,802 INFO L226 Difference]: Without dead ends: 12271 [2020-11-30 00:19:32,819 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 [2020-11-30 00:19:32,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12271 states. [2020-11-30 00:19:33,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12271 to 12267. [2020-11-30 00:19:33,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12267 states. [2020-11-30 00:19:33,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12267 states to 12267 states and 14623 transitions. [2020-11-30 00:19:33,169 INFO L78 Accepts]: Start accepts. Automaton has 12267 states and 14623 transitions. Word has length 270 [2020-11-30 00:19:33,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:19:33,170 INFO L481 AbstractCegarLoop]: Abstraction has 12267 states and 14623 transitions. [2020-11-30 00:19:33,170 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:19:33,170 INFO L276 IsEmpty]: Start isEmpty. Operand 12267 states and 14623 transitions. [2020-11-30 00:19:33,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2020-11-30 00:19:33,180 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:19:33,181 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:19:33,181 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-30 00:19:33,182 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:19:33,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:19:33,182 INFO L82 PathProgramCache]: Analyzing trace with hash 487217074, now seen corresponding path program 1 times [2020-11-30 00:19:33,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:19:33,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666692267] [2020-11-30 00:19:33,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:19:33,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:19:33,722 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 23 proven. 88 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-11-30 00:19:33,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666692267] [2020-11-30 00:19:33,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1177754501] [2020-11-30 00:19:33,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a995ef4a-b125-4b8b-b1d4-14ab18eedd53/bin/uautomizer/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 [2020-11-30 00:19:33,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:19:33,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:19:33,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:19:34,231 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-11-30 00:19:34,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:19:34,232 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-30 00:19:34,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79471154] [2020-11-30 00:19:34,233 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:19:34,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:19:34,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:19:34,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:19:34,235 INFO L87 Difference]: Start difference. First operand 12267 states and 14623 transitions. Second operand 3 states. [2020-11-30 00:19:36,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:19:36,546 INFO L93 Difference]: Finished difference Result 29315 states and 35139 transitions. [2020-11-30 00:19:36,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:19:36,547 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 272 [2020-11-30 00:19:36,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:19:36,600 INFO L225 Difference]: With dead ends: 29315 [2020-11-30 00:19:36,600 INFO L226 Difference]: Without dead ends: 16866 [2020-11-30 00:19:36,622 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:19:36,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16866 states. [2020-11-30 00:19:36,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16866 to 16126. [2020-11-30 00:19:36,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16126 states. [2020-11-30 00:19:37,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16126 states to 16126 states and 18909 transitions. [2020-11-30 00:19:37,027 INFO L78 Accepts]: Start accepts. Automaton has 16126 states and 18909 transitions. Word has length 272 [2020-11-30 00:19:37,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:19:37,028 INFO L481 AbstractCegarLoop]: Abstraction has 16126 states and 18909 transitions. [2020-11-30 00:19:37,028 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:19:37,028 INFO L276 IsEmpty]: Start isEmpty. Operand 16126 states and 18909 transitions. [2020-11-30 00:19:37,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2020-11-30 00:19:37,039 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:19:37,039 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:19:37,267 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-11-30 00:19:37,267 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:19:37,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:19:37,268 INFO L82 PathProgramCache]: Analyzing trace with hash 709544077, now seen corresponding path program 1 times [2020-11-30 00:19:37,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:19:37,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165789831] [2020-11-30 00:19:37,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:19:37,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:19:37,616 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2020-11-30 00:19:37,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165789831] [2020-11-30 00:19:37,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:19:37,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:19:37,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923317219] [2020-11-30 00:19:37,618 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:19:37,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:19:37,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:19:37,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:19:37,620 INFO L87 Difference]: Start difference. First operand 16126 states and 18909 transitions. Second operand 3 states. [2020-11-30 00:19:39,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:19:39,481 INFO L93 Difference]: Finished difference Result 32260 states and 37836 transitions. [2020-11-30 00:19:39,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:19:39,482 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 277 [2020-11-30 00:19:39,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:19:39,527 INFO L225 Difference]: With dead ends: 32260 [2020-11-30 00:19:39,527 INFO L226 Difference]: Without dead ends: 16136 [2020-11-30 00:19:39,553 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 [2020-11-30 00:19:39,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16136 states. [2020-11-30 00:19:39,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16136 to 16125. [2020-11-30 00:19:39,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16125 states. [2020-11-30 00:19:40,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16125 states to 16125 states and 18433 transitions. [2020-11-30 00:19:40,014 INFO L78 Accepts]: Start accepts. Automaton has 16125 states and 18433 transitions. Word has length 277 [2020-11-30 00:19:40,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:19:40,015 INFO L481 AbstractCegarLoop]: Abstraction has 16125 states and 18433 transitions. [2020-11-30 00:19:40,015 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:19:40,015 INFO L276 IsEmpty]: Start isEmpty. Operand 16125 states and 18433 transitions. [2020-11-30 00:19:40,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2020-11-30 00:19:40,030 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:19:40,031 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:19:40,031 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-30 00:19:40,031 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:19:40,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:19:40,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1239383884, now seen corresponding path program 1 times [2020-11-30 00:19:40,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:19:40,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650064984] [2020-11-30 00:19:40,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:19:40,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:19:40,369 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 200 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:19:40,370 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650064984] [2020-11-30 00:19:40,370 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:19:40,371 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:19:40,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299449372] [2020-11-30 00:19:40,372 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:19:40,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:19:40,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:19:40,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:19:40,373 INFO L87 Difference]: Start difference. First operand 16125 states and 18433 transitions. Second operand 4 states. [2020-11-30 00:19:42,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:19:42,642 INFO L93 Difference]: Finished difference Result 30005 states and 34343 transitions. [2020-11-30 00:19:42,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:19:42,649 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 291 [2020-11-30 00:19:42,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:19:42,690 INFO L225 Difference]: With dead ends: 30005 [2020-11-30 00:19:42,690 INFO L226 Difference]: Without dead ends: 13514 [2020-11-30 00:19:42,713 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:19:42,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13514 states. [2020-11-30 00:19:42,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13514 to 10925. [2020-11-30 00:19:42,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10925 states. [2020-11-30 00:19:42,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10925 states to 10925 states and 12148 transitions. [2020-11-30 00:19:42,969 INFO L78 Accepts]: Start accepts. Automaton has 10925 states and 12148 transitions. Word has length 291 [2020-11-30 00:19:42,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:19:42,970 INFO L481 AbstractCegarLoop]: Abstraction has 10925 states and 12148 transitions. [2020-11-30 00:19:42,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:19:42,970 INFO L276 IsEmpty]: Start isEmpty. Operand 10925 states and 12148 transitions. [2020-11-30 00:19:42,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2020-11-30 00:19:42,989 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:19:42,989 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:19:42,990 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-30 00:19:42,990 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:19:42,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:19:42,991 INFO L82 PathProgramCache]: Analyzing trace with hash -1261395041, now seen corresponding path program 1 times [2020-11-30 00:19:42,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:19:42,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855811380] [2020-11-30 00:19:42,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:19:43,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:19:43,452 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2020-11-30 00:19:43,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855811380] [2020-11-30 00:19:43,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:19:43,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:19:43,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624642046] [2020-11-30 00:19:43,457 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:19:43,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:19:43,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:19:43,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:19:43,466 INFO L87 Difference]: Start difference. First operand 10925 states and 12148 transitions. Second operand 3 states. [2020-11-30 00:19:44,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:19:44,527 INFO L93 Difference]: Finished difference Result 23871 states and 26540 transitions. [2020-11-30 00:19:44,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:19:44,529 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 325 [2020-11-30 00:19:44,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:19:44,560 INFO L225 Difference]: With dead ends: 23871 [2020-11-30 00:19:44,560 INFO L226 Difference]: Without dead ends: 12948 [2020-11-30 00:19:44,571 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 [2020-11-30 00:19:44,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12948 states. [2020-11-30 00:19:44,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12948 to 8343. [2020-11-30 00:19:44,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8343 states. [2020-11-30 00:19:44,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8343 states to 8343 states and 9312 transitions. [2020-11-30 00:19:44,765 INFO L78 Accepts]: Start accepts. Automaton has 8343 states and 9312 transitions. Word has length 325 [2020-11-30 00:19:44,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:19:44,766 INFO L481 AbstractCegarLoop]: Abstraction has 8343 states and 9312 transitions. [2020-11-30 00:19:44,766 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:19:44,767 INFO L276 IsEmpty]: Start isEmpty. Operand 8343 states and 9312 transitions. [2020-11-30 00:19:44,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2020-11-30 00:19:44,777 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:19:44,778 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-11-30 00:19:44,778 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-30 00:19:44,779 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:19:44,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:19:44,780 INFO L82 PathProgramCache]: Analyzing trace with hash 1853480627, now seen corresponding path program 1 times [2020-11-30 00:19:44,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:19:44,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118394832] [2020-11-30 00:19:44,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:19:44,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:19:45,620 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 267 proven. 74 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-11-30 00:19:45,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118394832] [2020-11-30 00:19:45,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924344369] [2020-11-30 00:19:45,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a995ef4a-b125-4b8b-b1d4-14ab18eedd53/bin/uautomizer/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 [2020-11-30 00:19:45,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:19:45,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 00:19:45,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:19:46,103 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 341 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-11-30 00:19:46,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:19:46,104 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-11-30 00:19:46,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730092667] [2020-11-30 00:19:46,105 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:19:46,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:19:46,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:19:46,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-11-30 00:19:46,107 INFO L87 Difference]: Start difference. First operand 8343 states and 9312 transitions. Second operand 4 states. [2020-11-30 00:19:47,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:19:47,777 INFO L93 Difference]: Finished difference Result 19635 states and 21862 transitions. [2020-11-30 00:19:47,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:19:47,778 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 345 [2020-11-30 00:19:47,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:19:47,797 INFO L225 Difference]: With dead ends: 19635 [2020-11-30 00:19:47,798 INFO L226 Difference]: Without dead ends: 11294 [2020-11-30 00:19:47,806 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-11-30 00:19:47,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11294 states. [2020-11-30 00:19:47,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11294 to 11108. [2020-11-30 00:19:47,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11108 states. [2020-11-30 00:19:48,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11108 states to 11108 states and 12348 transitions. [2020-11-30 00:19:48,012 INFO L78 Accepts]: Start accepts. Automaton has 11108 states and 12348 transitions. Word has length 345 [2020-11-30 00:19:48,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:19:48,013 INFO L481 AbstractCegarLoop]: Abstraction has 11108 states and 12348 transitions. [2020-11-30 00:19:48,013 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:19:48,013 INFO L276 IsEmpty]: Start isEmpty. Operand 11108 states and 12348 transitions. [2020-11-30 00:19:48,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2020-11-30 00:19:48,029 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:19:48,030 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:19:48,247 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-11-30 00:19:48,247 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:19:48,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:19:48,248 INFO L82 PathProgramCache]: Analyzing trace with hash 170136398, now seen corresponding path program 1 times [2020-11-30 00:19:48,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:19:48,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522993764] [2020-11-30 00:19:48,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:19:48,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:19:48,647 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 346 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2020-11-30 00:19:48,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522993764] [2020-11-30 00:19:48,648 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:19:48,648 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:19:48,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430675023] [2020-11-30 00:19:48,649 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:19:48,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:19:48,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:19:48,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:19:48,651 INFO L87 Difference]: Start difference. First operand 11108 states and 12348 transitions. Second operand 4 states. [2020-11-30 00:19:51,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:19:51,027 INFO L93 Difference]: Finished difference Result 26277 states and 29190 transitions. [2020-11-30 00:19:51,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:19:51,028 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 367 [2020-11-30 00:19:51,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:19:51,053 INFO L225 Difference]: With dead ends: 26277 [2020-11-30 00:19:51,053 INFO L226 Difference]: Without dead ends: 13693 [2020-11-30 00:19:51,065 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:19:51,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13693 states. [2020-11-30 00:19:51,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13693 to 10365. [2020-11-30 00:19:51,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10365 states. [2020-11-30 00:19:51,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10365 states to 10365 states and 11425 transitions. [2020-11-30 00:19:51,322 INFO L78 Accepts]: Start accepts. Automaton has 10365 states and 11425 transitions. Word has length 367 [2020-11-30 00:19:51,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:19:51,323 INFO L481 AbstractCegarLoop]: Abstraction has 10365 states and 11425 transitions. [2020-11-30 00:19:51,323 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:19:51,323 INFO L276 IsEmpty]: Start isEmpty. Operand 10365 states and 11425 transitions. [2020-11-30 00:19:51,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2020-11-30 00:19:51,342 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:19:51,343 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:19:51,344 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-30 00:19:51,345 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:19:51,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:19:51,346 INFO L82 PathProgramCache]: Analyzing trace with hash -444647589, now seen corresponding path program 1 times [2020-11-30 00:19:51,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:19:51,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121459342] [2020-11-30 00:19:51,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:19:51,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:19:51,871 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 358 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-11-30 00:19:51,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121459342] [2020-11-30 00:19:51,872 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:19:51,872 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:19:51,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896229418] [2020-11-30 00:19:51,873 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:19:51,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:19:51,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:19:51,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:19:51,876 INFO L87 Difference]: Start difference. First operand 10365 states and 11425 transitions. Second operand 4 states. [2020-11-30 00:19:53,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:19:53,750 INFO L93 Difference]: Finished difference Result 27559 states and 30332 transitions. [2020-11-30 00:19:53,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:19:53,751 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 395 [2020-11-30 00:19:53,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:19:53,774 INFO L225 Difference]: With dead ends: 27559 [2020-11-30 00:19:53,774 INFO L226 Difference]: Without dead ends: 17196 [2020-11-30 00:19:53,783 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:19:53,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17196 states. [2020-11-30 00:19:54,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17196 to 16079. [2020-11-30 00:19:54,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16079 states. [2020-11-30 00:19:54,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16079 states to 16079 states and 17682 transitions. [2020-11-30 00:19:54,080 INFO L78 Accepts]: Start accepts. Automaton has 16079 states and 17682 transitions. Word has length 395 [2020-11-30 00:19:54,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:19:54,081 INFO L481 AbstractCegarLoop]: Abstraction has 16079 states and 17682 transitions. [2020-11-30 00:19:54,081 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:19:54,081 INFO L276 IsEmpty]: Start isEmpty. Operand 16079 states and 17682 transitions. [2020-11-30 00:19:54,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2020-11-30 00:19:54,105 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:19:54,106 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-30 00:19:54,106 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-30 00:19:54,107 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:19:54,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:19:54,108 INFO L82 PathProgramCache]: Analyzing trace with hash -454976631, now seen corresponding path program 1 times [2020-11-30 00:19:54,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:19:54,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735091035] [2020-11-30 00:19:54,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:19:54,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:19:54,570 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 426 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2020-11-30 00:19:54,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735091035] [2020-11-30 00:19:54,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:19:54,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:19:54,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378471846] [2020-11-30 00:19:54,571 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:19:54,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:19:54,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:19:54,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:19:54,572 INFO L87 Difference]: Start difference. First operand 16079 states and 17682 transitions. Second operand 4 states. [2020-11-30 00:19:56,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:19:56,641 INFO L93 Difference]: Finished difference Result 31245 states and 34381 transitions. [2020-11-30 00:19:56,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:19:56,642 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 415 [2020-11-30 00:19:56,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:19:56,762 INFO L225 Difference]: With dead ends: 31245 [2020-11-30 00:19:56,762 INFO L226 Difference]: Without dead ends: 17380 [2020-11-30 00:19:56,772 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:19:56,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17380 states. [2020-11-30 00:19:57,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17380 to 16263. [2020-11-30 00:19:57,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16263 states. [2020-11-30 00:19:57,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16263 states to 16263 states and 17879 transitions. [2020-11-30 00:19:57,065 INFO L78 Accepts]: Start accepts. Automaton has 16263 states and 17879 transitions. Word has length 415 [2020-11-30 00:19:57,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:19:57,066 INFO L481 AbstractCegarLoop]: Abstraction has 16263 states and 17879 transitions. [2020-11-30 00:19:57,066 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:19:57,066 INFO L276 IsEmpty]: Start isEmpty. Operand 16263 states and 17879 transitions. [2020-11-30 00:19:57,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2020-11-30 00:19:57,089 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:19:57,090 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-30 00:19:57,090 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-30 00:19:57,091 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:19:57,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:19:57,091 INFO L82 PathProgramCache]: Analyzing trace with hash -278235386, now seen corresponding path program 1 times [2020-11-30 00:19:57,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:19:57,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217234177] [2020-11-30 00:19:57,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:19:57,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:19:58,008 INFO L134 CoverageAnalysis]: Checked inductivity of 753 backedges. 412 proven. 341 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:19:58,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217234177] [2020-11-30 00:19:58,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [723384665] [2020-11-30 00:19:58,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a995ef4a-b125-4b8b-b1d4-14ab18eedd53/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:19:58,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:19:58,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 00:19:58,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:19:58,645 INFO L134 CoverageAnalysis]: Checked inductivity of 753 backedges. 485 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2020-11-30 00:19:58,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:19:58,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2020-11-30 00:19:58,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911131483] [2020-11-30 00:19:58,647 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:19:58,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:19:58,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:19:58,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:19:58,648 INFO L87 Difference]: Start difference. First operand 16263 states and 17879 transitions. Second operand 3 states. [2020-11-30 00:19:59,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:19:59,953 INFO L93 Difference]: Finished difference Result 36025 states and 39655 transitions. [2020-11-30 00:19:59,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:19:59,954 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 462 [2020-11-30 00:19:59,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:19:59,978 INFO L225 Difference]: With dead ends: 36025 [2020-11-30 00:19:59,978 INFO L226 Difference]: Without dead ends: 20132 [2020-11-30 00:19:59,996 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 462 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:20:00,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20132 states. [2020-11-30 00:20:00,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20132 to 16081. [2020-11-30 00:20:00,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16081 states. [2020-11-30 00:20:00,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16081 states to 16081 states and 17534 transitions. [2020-11-30 00:20:00,272 INFO L78 Accepts]: Start accepts. Automaton has 16081 states and 17534 transitions. Word has length 462 [2020-11-30 00:20:00,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:20:00,272 INFO L481 AbstractCegarLoop]: Abstraction has 16081 states and 17534 transitions. [2020-11-30 00:20:00,272 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:20:00,273 INFO L276 IsEmpty]: Start isEmpty. Operand 16081 states and 17534 transitions. [2020-11-30 00:20:00,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2020-11-30 00:20:00,290 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:20:00,291 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-30 00:20:00,495 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-11-30 00:20:00,496 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:20:00,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:20:00,496 INFO L82 PathProgramCache]: Analyzing trace with hash -1803230976, now seen corresponding path program 1 times [2020-11-30 00:20:00,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:20:00,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114577432] [2020-11-30 00:20:00,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:20:00,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:20:01,881 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 154 proven. 346 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:20:01,881 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114577432] [2020-11-30 00:20:01,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1722366967] [2020-11-30 00:20:01,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a995ef4a-b125-4b8b-b1d4-14ab18eedd53/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:20:02,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:20:02,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 00:20:02,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:20:02,251 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 4, 1] term [2020-11-30 00:20:02,251 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-30 00:20:02,269 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 00:20:02,290 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 00:20:02,315 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 00:20:02,325 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 00:20:03,119 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 154 proven. 346 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:20:03,119 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 00:20:03,120 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-11-30 00:20:03,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122289541] [2020-11-30 00:20:03,121 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-30 00:20:03,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:20:03,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-30 00:20:03,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-11-30 00:20:03,123 INFO L87 Difference]: Start difference. First operand 16081 states and 17534 transitions. Second operand 9 states. [2020-11-30 00:20:10,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:20:10,125 INFO L93 Difference]: Finished difference Result 34373 states and 37475 transitions. [2020-11-30 00:20:10,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 00:20:10,127 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 470 [2020-11-30 00:20:10,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:20:10,149 INFO L225 Difference]: With dead ends: 34373 [2020-11-30 00:20:10,149 INFO L226 Difference]: Without dead ends: 20506 [2020-11-30 00:20:10,158 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 478 GetRequests, 466 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-11-30 00:20:10,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20506 states. [2020-11-30 00:20:10,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20506 to 17185. [2020-11-30 00:20:10,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17185 states. [2020-11-30 00:20:10,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17185 states to 17185 states and 18694 transitions. [2020-11-30 00:20:10,426 INFO L78 Accepts]: Start accepts. Automaton has 17185 states and 18694 transitions. Word has length 470 [2020-11-30 00:20:10,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:20:10,427 INFO L481 AbstractCegarLoop]: Abstraction has 17185 states and 18694 transitions. [2020-11-30 00:20:10,427 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-30 00:20:10,427 INFO L276 IsEmpty]: Start isEmpty. Operand 17185 states and 18694 transitions. [2020-11-30 00:20:10,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2020-11-30 00:20:10,446 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:20:10,447 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:20:10,675 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:20:10,675 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:20:10,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:20:10,676 INFO L82 PathProgramCache]: Analyzing trace with hash -485286015, now seen corresponding path program 1 times [2020-11-30 00:20:10,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:20:10,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715483281] [2020-11-30 00:20:10,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:20:10,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:20:11,221 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 492 proven. 0 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2020-11-30 00:20:11,221 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715483281] [2020-11-30 00:20:11,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:20:11,221 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:20:11,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795241882] [2020-11-30 00:20:11,222 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:20:11,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:20:11,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:20:11,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:20:11,223 INFO L87 Difference]: Start difference. First operand 17185 states and 18694 transitions. Second operand 4 states. [2020-11-30 00:20:13,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:20:13,502 INFO L93 Difference]: Finished difference Result 36215 states and 39484 transitions. [2020-11-30 00:20:13,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:20:13,514 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 521 [2020-11-30 00:20:13,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:20:13,536 INFO L225 Difference]: With dead ends: 36215 [2020-11-30 00:20:13,536 INFO L226 Difference]: Without dead ends: 21428 [2020-11-30 00:20:13,542 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:20:13,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21428 states. [2020-11-30 00:20:13,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21428 to 18841. [2020-11-30 00:20:13,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18841 states. [2020-11-30 00:20:13,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18841 states to 18841 states and 20547 transitions. [2020-11-30 00:20:13,789 INFO L78 Accepts]: Start accepts. Automaton has 18841 states and 20547 transitions. Word has length 521 [2020-11-30 00:20:13,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:20:13,790 INFO L481 AbstractCegarLoop]: Abstraction has 18841 states and 20547 transitions. [2020-11-30 00:20:13,790 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:20:13,790 INFO L276 IsEmpty]: Start isEmpty. Operand 18841 states and 20547 transitions. [2020-11-30 00:20:13,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2020-11-30 00:20:13,806 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:20:13,807 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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] [2020-11-30 00:20:13,807 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-11-30 00:20:13,807 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:20:13,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:20:13,808 INFO L82 PathProgramCache]: Analyzing trace with hash 1937805046, now seen corresponding path program 2 times [2020-11-30 00:20:13,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:20:13,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828883341] [2020-11-30 00:20:13,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:20:13,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:20:15,196 INFO L134 CoverageAnalysis]: Checked inductivity of 1177 backedges. 911 proven. 92 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2020-11-30 00:20:15,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828883341] [2020-11-30 00:20:15,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693274896] [2020-11-30 00:20:15,197 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a995ef4a-b125-4b8b-b1d4-14ab18eedd53/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:20:15,421 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-30 00:20:15,421 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 00:20:15,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 750 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 00:20:15,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:20:16,001 INFO L134 CoverageAnalysis]: Checked inductivity of 1177 backedges. 887 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2020-11-30 00:20:16,002 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:20:16,002 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2020-11-30 00:20:16,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495374020] [2020-11-30 00:20:16,004 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:20:16,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:20:16,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:20:16,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-11-30 00:20:16,005 INFO L87 Difference]: Start difference. First operand 18841 states and 20547 transitions. Second operand 4 states. [2020-11-30 00:20:17,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:20:17,716 INFO L93 Difference]: Finished difference Result 37493 states and 40884 transitions. [2020-11-30 00:20:17,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:20:17,718 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 547 [2020-11-30 00:20:17,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:20:17,747 INFO L225 Difference]: With dead ends: 37493 [2020-11-30 00:20:17,747 INFO L226 Difference]: Without dead ends: 21050 [2020-11-30 00:20:17,761 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 552 GetRequests, 545 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-11-30 00:20:17,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21050 states. [2020-11-30 00:20:17,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21050 to 12577. [2020-11-30 00:20:17,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12577 states. [2020-11-30 00:20:17,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12577 states to 12577 states and 13699 transitions. [2020-11-30 00:20:17,988 INFO L78 Accepts]: Start accepts. Automaton has 12577 states and 13699 transitions. Word has length 547 [2020-11-30 00:20:17,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:20:17,989 INFO L481 AbstractCegarLoop]: Abstraction has 12577 states and 13699 transitions. [2020-11-30 00:20:17,989 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:20:17,989 INFO L276 IsEmpty]: Start isEmpty. Operand 12577 states and 13699 transitions. [2020-11-30 00:20:18,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2020-11-30 00:20:18,001 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:20:18,001 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:20:18,203 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2020-11-30 00:20:18,203 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:20:18,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:20:18,204 INFO L82 PathProgramCache]: Analyzing trace with hash -1047473608, now seen corresponding path program 1 times [2020-11-30 00:20:18,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:20:18,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091564590] [2020-11-30 00:20:18,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:20:18,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:20:18,882 INFO L134 CoverageAnalysis]: Checked inductivity of 1119 backedges. 623 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2020-11-30 00:20:18,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091564590] [2020-11-30 00:20:18,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:20:18,883 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:20:18,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071141278] [2020-11-30 00:20:18,884 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:20:18,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:20:18,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:20:18,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:20:18,890 INFO L87 Difference]: Start difference. First operand 12577 states and 13699 transitions. Second operand 3 states. [2020-11-30 00:20:20,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:20:20,285 INFO L93 Difference]: Finished difference Result 25535 states and 27796 transitions. [2020-11-30 00:20:20,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:20:20,289 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 558 [2020-11-30 00:20:20,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:20:20,305 INFO L225 Difference]: With dead ends: 25535 [2020-11-30 00:20:20,305 INFO L226 Difference]: Without dead ends: 12959 [2020-11-30 00:20:20,314 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 [2020-11-30 00:20:20,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12959 states. [2020-11-30 00:20:20,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12959 to 11840. [2020-11-30 00:20:20,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11840 states. [2020-11-30 00:20:20,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11840 states to 11840 states and 12783 transitions. [2020-11-30 00:20:20,482 INFO L78 Accepts]: Start accepts. Automaton has 11840 states and 12783 transitions. Word has length 558 [2020-11-30 00:20:20,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:20:20,483 INFO L481 AbstractCegarLoop]: Abstraction has 11840 states and 12783 transitions. [2020-11-30 00:20:20,483 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:20:20,483 INFO L276 IsEmpty]: Start isEmpty. Operand 11840 states and 12783 transitions. [2020-11-30 00:20:20,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 659 [2020-11-30 00:20:20,500 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:20:20,500 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:20:20,501 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-11-30 00:20:20,501 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:20:20,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:20:20,502 INFO L82 PathProgramCache]: Analyzing trace with hash 592417714, now seen corresponding path program 1 times [2020-11-30 00:20:20,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:20:20,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938487679] [2020-11-30 00:20:20,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:20:20,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:20:21,289 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 662 proven. 0 refuted. 0 times theorem prover too weak. 670 trivial. 0 not checked. [2020-11-30 00:20:21,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938487679] [2020-11-30 00:20:21,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:20:21,290 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:20:21,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17910588] [2020-11-30 00:20:21,291 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:20:21,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:20:21,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:20:21,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:20:21,292 INFO L87 Difference]: Start difference. First operand 11840 states and 12783 transitions. Second operand 3 states. [2020-11-30 00:20:22,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:20:22,468 INFO L93 Difference]: Finished difference Result 24593 states and 26510 transitions. [2020-11-30 00:20:22,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:20:22,469 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 658 [2020-11-30 00:20:22,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:20:22,470 INFO L225 Difference]: With dead ends: 24593 [2020-11-30 00:20:22,471 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 00:20:22,483 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 [2020-11-30 00:20:22,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 00:20:22,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 00:20:22,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 00:20:22,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 00:20:22,484 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 658 [2020-11-30 00:20:22,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:20:22,485 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:20:22,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:20:22,485 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:20:22,485 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 00:20:22,486 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-11-30 00:20:22,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 00:20:23,743 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 520 DAG size of output: 370 [2020-11-30 00:20:24,724 WARN L193 SmtUtils]: Spent 973.00 ms on a formula simplification. DAG size of input: 520 DAG size of output: 370 [2020-11-30 00:20:27,724 WARN L193 SmtUtils]: Spent 2.98 s on a formula simplification. DAG size of input: 347 DAG size of output: 88 [2020-11-30 00:20:30,380 WARN L193 SmtUtils]: Spent 2.65 s on a formula simplification. DAG size of input: 347 DAG size of output: 88 [2020-11-30 00:20:30,384 INFO L274 CegarLoopResult]: For program point L498(lines 498 509) no Hoare annotation was computed. [2020-11-30 00:20:30,384 INFO L274 CegarLoopResult]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,384 INFO L274 CegarLoopResult]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2020-11-30 00:20:30,384 INFO L274 CegarLoopResult]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,384 INFO L274 CegarLoopResult]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,384 INFO L274 CegarLoopResult]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,386 INFO L274 CegarLoopResult]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,386 INFO L274 CegarLoopResult]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,386 INFO L274 CegarLoopResult]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,386 INFO L274 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-11-30 00:20:30,386 INFO L274 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-11-30 00:20:30,387 INFO L274 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-11-30 00:20:30,387 INFO L274 CegarLoopResult]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,387 INFO L274 CegarLoopResult]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,387 INFO L274 CegarLoopResult]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,387 INFO L274 CegarLoopResult]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,387 INFO L274 CegarLoopResult]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,387 INFO L274 CegarLoopResult]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,387 INFO L274 CegarLoopResult]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,387 INFO L274 CegarLoopResult]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,387 INFO L274 CegarLoopResult]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,387 INFO L274 CegarLoopResult]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,387 INFO L274 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-11-30 00:20:30,388 INFO L274 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-11-30 00:20:30,388 INFO L274 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-11-30 00:20:30,388 INFO L274 CegarLoopResult]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,388 INFO L274 CegarLoopResult]: For program point L768(lines 768 778) no Hoare annotation was computed. [2020-11-30 00:20:30,388 INFO L274 CegarLoopResult]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2020-11-30 00:20:30,388 INFO L274 CegarLoopResult]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,388 INFO L274 CegarLoopResult]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,388 INFO L274 CegarLoopResult]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,388 INFO L274 CegarLoopResult]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,388 INFO L274 CegarLoopResult]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,388 INFO L274 CegarLoopResult]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,388 INFO L274 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-11-30 00:20:30,388 INFO L274 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-11-30 00:20:30,388 INFO L274 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-11-30 00:20:30,389 INFO L274 CegarLoopResult]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,389 INFO L274 CegarLoopResult]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,389 INFO L274 CegarLoopResult]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,389 INFO L270 CegarLoopResult]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse10 (<= 307 ~a23~0)) (.cse12 (<= ~a29~0 220)) (.cse9 (<= ~a29~0 277)) (.cse16 (<= 312 ~a23~0)) (.cse7 (= ~a25~0 13)) (.cse13 (= ~a25~0 10)) (.cse15 (<= ~a29~0 140)) (.cse4 (= ~a25~0 11)) (.cse11 (= ~a25~0 12)) (.cse2 (<= ~a23~0 262)) (.cse14 (= ~a25~0 9)) (.cse6 (= ~a4~0 0)) (.cse8 (<= (+ ~a23~0 43) 0)) (.cse0 (<= ~a29~0 275)) (.cse1 (<= ~a25~0 10)) (.cse5 (< 245 ~a29~0)) (.cse3 (= ~a4~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse4 .cse5 .cse6 .cse2) (and .cse7 (<= ~a29~0 206675) .cse3) (and .cse4 (<= (+ ~a29~0 275802) 0) .cse8) (and .cse1 .cse9 .cse5 .cse10 .cse3) (and .cse10 .cse11 .cse12 .cse3) (and .cse6 .cse13 .cse8) (and .cse7 .cse2 .cse3) (and .cse11 .cse2 .cse3) (and .cse13 .cse10 .cse3) (and .cse14 .cse6 .cse15 .cse2) (and .cse0 .cse13 .cse3) (and .cse4 .cse6 .cse8) (and .cse14 .cse3) (and .cse1 .cse8 .cse3) (and (<= (+ ~a29~0 193244) 0) .cse16 .cse1 .cse3) (and .cse11 .cse8 .cse12) (and .cse9 .cse5 .cse11 .cse3) (and (<= ~a29~0 206678) (< 306 ~a23~0) .cse7 .cse3) (and .cse0 .cse16 .cse11 .cse3) (and .cse6 .cse7 .cse2) (and .cse14 (<= (+ ~a29~0 275824) 0) .cse8) (and .cse6 .cse13 .cse15) (and .cse4 .cse3) (and .cse0 .cse6 .cse11) (and .cse6 .cse11 .cse2) (and .cse14 .cse6 .cse8) (and .cse0 .cse1 .cse5 .cse3))) [2020-11-30 00:20:30,389 INFO L274 CegarLoopResult]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,389 INFO L274 CegarLoopResult]: For program point L705(lines 705 715) no Hoare annotation was computed. [2020-11-30 00:20:30,390 INFO L274 CegarLoopResult]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2020-11-30 00:20:30,390 INFO L274 CegarLoopResult]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,390 INFO L274 CegarLoopResult]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,390 INFO L274 CegarLoopResult]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,390 INFO L274 CegarLoopResult]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,390 INFO L274 CegarLoopResult]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,390 INFO L274 CegarLoopResult]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,390 INFO L274 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-11-30 00:20:30,390 INFO L274 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-11-30 00:20:30,390 INFO L274 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-11-30 00:20:30,390 INFO L277 CegarLoopResult]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2020-11-30 00:20:30,390 INFO L274 CegarLoopResult]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,390 INFO L274 CegarLoopResult]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,391 INFO L274 CegarLoopResult]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,391 INFO L274 CegarLoopResult]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,391 INFO L274 CegarLoopResult]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,391 INFO L274 CegarLoopResult]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,391 INFO L274 CegarLoopResult]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,391 INFO L274 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-11-30 00:20:30,391 INFO L274 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-11-30 00:20:30,391 INFO L274 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-11-30 00:20:30,391 INFO L274 CegarLoopResult]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,391 INFO L274 CegarLoopResult]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,391 INFO L274 CegarLoopResult]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,391 INFO L274 CegarLoopResult]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,392 INFO L274 CegarLoopResult]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,392 INFO L274 CegarLoopResult]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,392 INFO L274 CegarLoopResult]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,392 INFO L274 CegarLoopResult]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,392 INFO L274 CegarLoopResult]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,392 INFO L274 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-11-30 00:20:30,392 INFO L274 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-11-30 00:20:30,392 INFO L274 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-11-30 00:20:30,392 INFO L274 CegarLoopResult]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,392 INFO L270 CegarLoopResult]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse10 (<= 307 ~a23~0)) (.cse12 (<= ~a29~0 220)) (.cse9 (<= ~a29~0 277)) (.cse16 (<= 312 ~a23~0)) (.cse7 (= ~a25~0 13)) (.cse13 (= ~a25~0 10)) (.cse15 (<= ~a29~0 140)) (.cse4 (= ~a25~0 11)) (.cse11 (= ~a25~0 12)) (.cse2 (<= ~a23~0 262)) (.cse14 (= ~a25~0 9)) (.cse6 (= ~a4~0 0)) (.cse8 (<= (+ ~a23~0 43) 0)) (.cse0 (<= ~a29~0 275)) (.cse1 (<= ~a25~0 10)) (.cse5 (< 245 ~a29~0)) (.cse3 (= ~a4~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse4 .cse5 .cse6 .cse2) (and .cse7 (<= ~a29~0 206675) .cse3) (and .cse4 (<= (+ ~a29~0 275802) 0) .cse8) (and .cse1 .cse9 .cse5 .cse10 .cse3) (and .cse10 .cse11 .cse12 .cse3) (and .cse6 .cse13 .cse8) (and .cse7 .cse2 .cse3) (and .cse11 .cse2 .cse3) (and .cse13 .cse10 .cse3) (and .cse14 .cse6 .cse15 .cse2) (and .cse0 .cse13 .cse3) (and .cse4 .cse6 .cse8) (and .cse14 .cse3) (and .cse1 .cse8 .cse3) (and (<= (+ ~a29~0 193244) 0) .cse16 .cse1 .cse3) (and .cse11 .cse8 .cse12) (and .cse9 .cse5 .cse11 .cse3) (and (<= ~a29~0 206678) (< 306 ~a23~0) .cse7 .cse3) (and .cse0 .cse16 .cse11 .cse3) (and .cse6 .cse7 .cse2) (and .cse14 (<= (+ ~a29~0 275824) 0) .cse8) (and .cse6 .cse13 .cse15) (and .cse4 .cse3) (and .cse0 .cse6 .cse11) (and .cse6 .cse11 .cse2) (and .cse14 .cse6 .cse8) (and .cse0 .cse1 .cse5 .cse3))) [2020-11-30 00:20:30,393 INFO L274 CegarLoopResult]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,393 INFO L274 CegarLoopResult]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,393 INFO L274 CegarLoopResult]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,393 INFO L274 CegarLoopResult]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,393 INFO L274 CegarLoopResult]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,393 INFO L274 CegarLoopResult]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,393 INFO L274 CegarLoopResult]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,393 INFO L274 CegarLoopResult]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,393 INFO L274 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-11-30 00:20:30,393 INFO L274 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-11-30 00:20:30,393 INFO L274 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-11-30 00:20:30,393 INFO L274 CegarLoopResult]: For program point L980(lines 980 990) no Hoare annotation was computed. [2020-11-30 00:20:30,393 INFO L274 CegarLoopResult]: For program point L914(lines 914 924) no Hoare annotation was computed. [2020-11-30 00:20:30,394 INFO L274 CegarLoopResult]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2020-11-30 00:20:30,394 INFO L274 CegarLoopResult]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2020-11-30 00:20:30,394 INFO L274 CegarLoopResult]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,394 INFO L274 CegarLoopResult]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,394 INFO L274 CegarLoopResult]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,394 INFO L274 CegarLoopResult]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,394 INFO L274 CegarLoopResult]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,394 INFO L274 CegarLoopResult]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,394 INFO L274 CegarLoopResult]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,394 INFO L274 CegarLoopResult]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,394 INFO L274 CegarLoopResult]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,394 INFO L274 CegarLoopResult]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,394 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 00:20:30,395 INFO L274 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-11-30 00:20:30,395 INFO L274 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-11-30 00:20:30,395 INFO L274 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-11-30 00:20:30,395 INFO L274 CegarLoopResult]: For program point L1049(line 1049) no Hoare annotation was computed. [2020-11-30 00:20:30,395 INFO L274 CegarLoopResult]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,395 INFO L274 CegarLoopResult]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,395 INFO L274 CegarLoopResult]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,395 INFO L274 CegarLoopResult]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,395 INFO L274 CegarLoopResult]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,395 INFO L274 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-11-30 00:20:30,395 INFO L274 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-11-30 00:20:30,395 INFO L274 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-11-30 00:20:30,395 INFO L274 CegarLoopResult]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,395 INFO L274 CegarLoopResult]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,396 INFO L274 CegarLoopResult]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,396 INFO L274 CegarLoopResult]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,396 INFO L274 CegarLoopResult]: For program point L525(lines 525 535) no Hoare annotation was computed. [2020-11-30 00:20:30,396 INFO L274 CegarLoopResult]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2020-11-30 00:20:30,396 INFO L274 CegarLoopResult]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,396 INFO L274 CegarLoopResult]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,396 INFO L274 CegarLoopResult]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,396 INFO L274 CegarLoopResult]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,396 INFO L274 CegarLoopResult]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,396 INFO L274 CegarLoopResult]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,396 INFO L274 CegarLoopResult]: For program point L658(lines 658 667) no Hoare annotation was computed. [2020-11-30 00:20:30,396 INFO L274 CegarLoopResult]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2020-11-30 00:20:30,396 INFO L274 CegarLoopResult]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,397 INFO L274 CegarLoopResult]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,397 INFO L274 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-11-30 00:20:30,397 INFO L274 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-11-30 00:20:30,397 INFO L274 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-11-30 00:20:30,397 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 00:20:30,397 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-30 00:20:30,397 INFO L274 CegarLoopResult]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,397 INFO L274 CegarLoopResult]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,397 INFO L274 CegarLoopResult]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,397 INFO L274 CegarLoopResult]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,397 INFO L274 CegarLoopResult]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,397 INFO L274 CegarLoopResult]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,398 INFO L274 CegarLoopResult]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,398 INFO L274 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-11-30 00:20:30,398 INFO L274 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-11-30 00:20:30,398 INFO L274 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-11-30 00:20:30,398 INFO L274 CegarLoopResult]: For program point L926(lines 926 936) no Hoare annotation was computed. [2020-11-30 00:20:30,398 INFO L274 CegarLoopResult]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2020-11-30 00:20:30,398 INFO L274 CegarLoopResult]: For program point L728(lines 728 740) no Hoare annotation was computed. [2020-11-30 00:20:30,398 INFO L274 CegarLoopResult]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2020-11-30 00:20:30,398 INFO L274 CegarLoopResult]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,398 INFO L274 CegarLoopResult]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,398 INFO L274 CegarLoopResult]: For program point L597(lines 597 607) no Hoare annotation was computed. [2020-11-30 00:20:30,398 INFO L274 CegarLoopResult]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2020-11-30 00:20:30,398 INFO L274 CegarLoopResult]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,399 INFO L274 CegarLoopResult]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,400 INFO L274 CegarLoopResult]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,400 INFO L274 CegarLoopResult]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,402 INFO L274 CegarLoopResult]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,402 INFO L274 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-11-30 00:20:30,402 INFO L274 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-11-30 00:20:30,403 INFO L274 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-11-30 00:20:30,403 INFO L274 CegarLoopResult]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,403 INFO L274 CegarLoopResult]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,403 INFO L274 CegarLoopResult]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,403 INFO L274 CegarLoopResult]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,403 INFO L274 CegarLoopResult]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,404 INFO L274 CegarLoopResult]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,404 INFO L274 CegarLoopResult]: For program point L205(line 205) no Hoare annotation was computed. [2020-11-30 00:20:30,404 INFO L274 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-11-30 00:20:30,404 INFO L274 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-11-30 00:20:30,404 INFO L274 CegarLoopResult]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,404 INFO L274 CegarLoopResult]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,405 INFO L274 CegarLoopResult]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,405 INFO L274 CegarLoopResult]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,405 INFO L274 CegarLoopResult]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,405 INFO L274 CegarLoopResult]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,405 INFO L274 CegarLoopResult]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,405 INFO L274 CegarLoopResult]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,406 INFO L274 CegarLoopResult]: For program point L208(line 208) no Hoare annotation was computed. [2020-11-30 00:20:30,406 INFO L274 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-11-30 00:20:30,406 INFO L274 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-11-30 00:20:30,406 INFO L274 CegarLoopResult]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,406 INFO L274 CegarLoopResult]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,406 INFO L274 CegarLoopResult]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,406 INFO L274 CegarLoopResult]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,407 INFO L274 CegarLoopResult]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,407 INFO L274 CegarLoopResult]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,407 INFO L274 CegarLoopResult]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,407 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-30 00:20:30,407 INFO L274 CegarLoopResult]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,407 INFO L274 CegarLoopResult]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,408 INFO L274 CegarLoopResult]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,408 INFO L274 CegarLoopResult]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,408 INFO L274 CegarLoopResult]: For program point L409(lines 409 420) no Hoare annotation was computed. [2020-11-30 00:20:30,408 INFO L274 CegarLoopResult]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2020-11-30 00:20:30,408 INFO L274 CegarLoopResult]: For program point L211(line 211) no Hoare annotation was computed. [2020-11-30 00:20:30,408 INFO L274 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-11-30 00:20:30,409 INFO L274 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-11-30 00:20:30,409 INFO L274 CegarLoopResult]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,409 INFO L274 CegarLoopResult]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,409 INFO L274 CegarLoopResult]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,409 INFO L274 CegarLoopResult]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,409 INFO L274 CegarLoopResult]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,409 INFO L274 CegarLoopResult]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,409 INFO L274 CegarLoopResult]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,410 INFO L274 CegarLoopResult]: For program point L214(line 214) no Hoare annotation was computed. [2020-11-30 00:20:30,410 INFO L274 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-11-30 00:20:30,410 INFO L274 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-11-30 00:20:30,410 INFO L274 CegarLoopResult]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,410 INFO L274 CegarLoopResult]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,410 INFO L274 CegarLoopResult]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,410 INFO L274 CegarLoopResult]: For program point L876(lines 876 885) no Hoare annotation was computed. [2020-11-30 00:20:30,410 INFO L274 CegarLoopResult]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2020-11-30 00:20:30,410 INFO L274 CegarLoopResult]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,410 INFO L274 CegarLoopResult]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,410 INFO L274 CegarLoopResult]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,410 INFO L274 CegarLoopResult]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,410 INFO L274 CegarLoopResult]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,411 INFO L274 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-11-30 00:20:30,411 INFO L274 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-11-30 00:20:30,411 INFO L274 CegarLoopResult]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,411 INFO L274 CegarLoopResult]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,411 INFO L274 CegarLoopResult]: For program point L614(lines 614 624) no Hoare annotation was computed. [2020-11-30 00:20:30,411 INFO L274 CegarLoopResult]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2020-11-30 00:20:30,411 INFO L274 CegarLoopResult]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,411 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 00:20:30,411 INFO L274 CegarLoopResult]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,411 INFO L274 CegarLoopResult]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,411 INFO L274 CegarLoopResult]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,412 INFO L274 CegarLoopResult]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,412 INFO L274 CegarLoopResult]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,412 INFO L274 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-11-30 00:20:30,412 INFO L274 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-11-30 00:20:30,412 INFO L274 CegarLoopResult]: For program point L815(lines 815 825) no Hoare annotation was computed. [2020-11-30 00:20:30,412 INFO L274 CegarLoopResult]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2020-11-30 00:20:30,412 INFO L274 CegarLoopResult]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,412 INFO L274 CegarLoopResult]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,412 INFO L274 CegarLoopResult]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,413 INFO L274 CegarLoopResult]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,413 INFO L274 CegarLoopResult]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,413 INFO L274 CegarLoopResult]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,413 INFO L274 CegarLoopResult]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,413 INFO L274 CegarLoopResult]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,413 INFO L274 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-11-30 00:20:30,414 INFO L274 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-11-30 00:20:30,414 INFO L274 CegarLoopResult]: For program point L950(lines 950 962) no Hoare annotation was computed. [2020-11-30 00:20:30,415 INFO L274 CegarLoopResult]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2020-11-30 00:20:30,415 INFO L274 CegarLoopResult]: For program point L488(lines 488 496) no Hoare annotation was computed. [2020-11-30 00:20:30,415 INFO L274 CegarLoopResult]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2020-11-30 00:20:30,415 INFO L274 CegarLoopResult]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,415 INFO L274 CegarLoopResult]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,416 INFO L274 CegarLoopResult]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,416 INFO L274 CegarLoopResult]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,419 INFO L274 CegarLoopResult]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,420 INFO L274 CegarLoopResult]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,420 INFO L274 CegarLoopResult]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,420 INFO L274 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-11-30 00:20:30,420 INFO L274 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-11-30 00:20:30,421 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 00:20:30,421 INFO L274 CegarLoopResult]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,421 INFO L274 CegarLoopResult]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,421 INFO L274 CegarLoopResult]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,421 INFO L274 CegarLoopResult]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,421 INFO L274 CegarLoopResult]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,422 INFO L274 CegarLoopResult]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,422 INFO L274 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-11-30 00:20:30,422 INFO L274 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-11-30 00:20:30,422 INFO L274 CegarLoopResult]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,422 INFO L274 CegarLoopResult]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,422 INFO L274 CegarLoopResult]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,422 INFO L274 CegarLoopResult]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,423 INFO L274 CegarLoopResult]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,423 INFO L274 CegarLoopResult]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,423 INFO L274 CegarLoopResult]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,423 INFO L274 CegarLoopResult]: For program point L33(lines 33 35) no Hoare annotation was computed. [2020-11-30 00:20:30,423 INFO L274 CegarLoopResult]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2020-11-30 00:20:30,423 INFO L274 CegarLoopResult]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,424 INFO L274 CegarLoopResult]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,424 INFO L274 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-11-30 00:20:30,424 INFO L274 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-11-30 00:20:30,424 INFO L274 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-11-30 00:20:30,424 INFO L274 CegarLoopResult]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2020-11-30 00:20:30,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:20:30 BoogieIcfgContainer [2020-11-30 00:20:30,477 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:20:30,478 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:20:30,478 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:20:30,479 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:20:30,479 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:19:10" (3/4) ... [2020-11-30 00:20:30,483 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 00:20:30,532 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-30 00:20:30,535 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 00:20:30,537 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:20:30,540 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:20:30,761 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a995ef4a-b125-4b8b-b1d4-14ab18eedd53/bin/uautomizer/witness.graphml [2020-11-30 00:20:30,762 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:20:30,763 INFO L168 Benchmark]: Toolchain (without parser) took 84868.88 ms. Allocated memory was 111.1 MB in the beginning and 1.9 GB in the end (delta: 1.8 GB). Free memory was 77.3 MB in the beginning and 1.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 496.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:20:30,764 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 81.8 MB. Free memory was 44.0 MB in the beginning and 43.9 MB in the end (delta: 77.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:20:30,764 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1149.25 ms. Allocated memory is still 111.1 MB. Free memory was 77.2 MB in the beginning and 55.6 MB in the end (delta: 21.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:20:30,765 INFO L168 Benchmark]: Boogie Procedure Inliner took 291.26 ms. Allocated memory is still 111.1 MB. Free memory was 55.1 MB in the beginning and 77.8 MB in the end (delta: -22.7 MB). Peak memory consumption was 23.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:20:30,765 INFO L168 Benchmark]: Boogie Preprocessor took 263.57 ms. Allocated memory is still 111.1 MB. Free memory was 77.8 MB in the beginning and 74.0 MB in the end (delta: 3.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:20:30,766 INFO L168 Benchmark]: RCFGBuilder took 3042.04 ms. Allocated memory was 111.1 MB in the beginning and 161.5 MB in the end (delta: 50.3 MB). Free memory was 74.0 MB in the beginning and 79.2 MB in the end (delta: -5.2 MB). Peak memory consumption was 54.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:20:30,766 INFO L168 Benchmark]: TraceAbstraction took 79824.92 ms. Allocated memory was 161.5 MB in the beginning and 1.9 GB in the end (delta: 1.8 GB). Free memory was 78.1 MB in the beginning and 1.4 GB in the end (delta: -1.4 GB). Peak memory consumption was 1.2 GB. Max. memory is 16.1 GB. [2020-11-30 00:20:30,766 INFO L168 Benchmark]: Witness Printer took 283.94 ms. Allocated memory is still 1.9 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:20:30,768 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 81.8 MB. Free memory was 44.0 MB in the beginning and 43.9 MB in the end (delta: 77.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1149.25 ms. Allocated memory is still 111.1 MB. Free memory was 77.2 MB in the beginning and 55.6 MB in the end (delta: 21.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 291.26 ms. Allocated memory is still 111.1 MB. Free memory was 55.1 MB in the beginning and 77.8 MB in the end (delta: -22.7 MB). Peak memory consumption was 23.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 263.57 ms. Allocated memory is still 111.1 MB. Free memory was 77.8 MB in the beginning and 74.0 MB in the end (delta: 3.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3042.04 ms. Allocated memory was 111.1 MB in the beginning and 161.5 MB in the end (delta: 50.3 MB). Free memory was 74.0 MB in the beginning and 79.2 MB in the end (delta: -5.2 MB). Peak memory consumption was 54.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 79824.92 ms. Allocated memory was 161.5 MB in the beginning and 1.9 GB in the end (delta: 1.8 GB). Free memory was 78.1 MB in the beginning and 1.4 GB in the end (delta: -1.4 GB). Peak memory consumption was 1.2 GB. Max. memory is 16.1 GB. * Witness Printer took 283.94 ms. Allocated memory is still 1.9 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: 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: 1038]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1044]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((a29 <= 275 && a25 <= 10) && a23 <= 262) && a4 == 1) || ((((a29 <= 275 && a25 == 11) && 245 < a29) && a4 == 0) && a23 <= 262)) || ((a25 == 13 && a29 <= 206675) && a4 == 1)) || ((a25 == 11 && a29 + 275802 <= 0) && a23 + 43 <= 0)) || ((((a25 <= 10 && a29 <= 277) && 245 < a29) && 307 <= a23) && a4 == 1)) || (((307 <= a23 && a25 == 12) && a29 <= 220) && a4 == 1)) || ((a4 == 0 && a25 == 10) && a23 + 43 <= 0)) || ((a25 == 13 && a23 <= 262) && a4 == 1)) || ((a25 == 12 && a23 <= 262) && a4 == 1)) || ((a25 == 10 && 307 <= a23) && a4 == 1)) || (((a25 == 9 && a4 == 0) && a29 <= 140) && a23 <= 262)) || ((a29 <= 275 && a25 == 10) && a4 == 1)) || ((a25 == 11 && a4 == 0) && a23 + 43 <= 0)) || (a25 == 9 && a4 == 1)) || ((a25 <= 10 && a23 + 43 <= 0) && a4 == 1)) || (((a29 + 193244 <= 0 && 312 <= a23) && a25 <= 10) && a4 == 1)) || ((a25 == 12 && a23 + 43 <= 0) && a29 <= 220)) || (((a29 <= 277 && 245 < a29) && a25 == 12) && a4 == 1)) || (((a29 <= 206678 && 306 < a23) && a25 == 13) && a4 == 1)) || (((a29 <= 275 && 312 <= a23) && a25 == 12) && a4 == 1)) || ((a4 == 0 && a25 == 13) && a23 <= 262)) || ((a25 == 9 && a29 + 275824 <= 0) && a23 + 43 <= 0)) || ((a4 == 0 && a25 == 10) && a29 <= 140)) || (a25 == 11 && a4 == 1)) || ((a29 <= 275 && a4 == 0) && a25 == 12)) || ((a4 == 0 && a25 == 12) && a23 <= 262)) || ((a25 == 9 && a4 == 0) && a23 + 43 <= 0)) || (((a29 <= 275 && a25 <= 10) && 245 < a29) && a4 == 1) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((a29 <= 275 && a25 <= 10) && a23 <= 262) && a4 == 1) || ((((a29 <= 275 && a25 == 11) && 245 < a29) && a4 == 0) && a23 <= 262)) || ((a25 == 13 && a29 <= 206675) && a4 == 1)) || ((a25 == 11 && a29 + 275802 <= 0) && a23 + 43 <= 0)) || ((((a25 <= 10 && a29 <= 277) && 245 < a29) && 307 <= a23) && a4 == 1)) || (((307 <= a23 && a25 == 12) && a29 <= 220) && a4 == 1)) || ((a4 == 0 && a25 == 10) && a23 + 43 <= 0)) || ((a25 == 13 && a23 <= 262) && a4 == 1)) || ((a25 == 12 && a23 <= 262) && a4 == 1)) || ((a25 == 10 && 307 <= a23) && a4 == 1)) || (((a25 == 9 && a4 == 0) && a29 <= 140) && a23 <= 262)) || ((a29 <= 275 && a25 == 10) && a4 == 1)) || ((a25 == 11 && a4 == 0) && a23 + 43 <= 0)) || (a25 == 9 && a4 == 1)) || ((a25 <= 10 && a23 + 43 <= 0) && a4 == 1)) || (((a29 + 193244 <= 0 && 312 <= a23) && a25 <= 10) && a4 == 1)) || ((a25 == 12 && a23 + 43 <= 0) && a29 <= 220)) || (((a29 <= 277 && 245 < a29) && a25 == 12) && a4 == 1)) || (((a29 <= 206678 && 306 < a23) && a25 == 13) && a4 == 1)) || (((a29 <= 275 && 312 <= a23) && a25 == 12) && a4 == 1)) || ((a4 == 0 && a25 == 13) && a23 <= 262)) || ((a25 == 9 && a29 + 275824 <= 0) && a23 + 43 <= 0)) || ((a4 == 0 && a25 == 10) && a29 <= 140)) || (a25 == 11 && a4 == 1)) || ((a29 <= 275 && a4 == 0) && a25 == 12)) || ((a4 == 0 && a25 == 12) && a23 <= 262)) || ((a25 == 9 && a4 == 0) && a23 + 43 <= 0)) || (((a29 <= 275 && a25 <= 10) && 245 < a29) && a4 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 284 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 71.7s, OverallIterations: 23, TraceHistogramMax: 6, AutomataDifference: 49.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 7.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4395 SDtfs, 4808 SDslu, 808 SDs, 0 SdLazy, 21730 SolverSat, 2372 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 32.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2176 GetRequests, 2117 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18841occurred in iteration=20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.7s AutomataMinimizationTime, 23 MinimizatonAttempts, 34586 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 171 NumberOfFragments, 663 HoareAnnotationTreeSize, 3 FomulaSimplifications, 109900 FormulaSimplificationTreeSizeReduction, 2.2s HoareSimplificationTime, 3 FomulaSimplificationsInter, 54336 FormulaSimplificationTreeSizeReductionInter, 5.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 6.9s InterpolantComputationTime, 9774 NumberOfCodeBlocks, 9774 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 9746 ConstructedInterpolants, 0 QuantifiedInterpolants, 15978453 SizeOfPredicates, 2 NumberOfNonLiveVariables, 2909 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 28 InterpolantComputations, 22 PerfectInterpolantSequences, 11391/12678 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...