./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label53.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_fded4d6e-b7c3-45ce-b372-25bfb29418af/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_fded4d6e-b7c3-45ce-b372-25bfb29418af/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fded4d6e-b7c3-45ce-b372-25bfb29418af/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fded4d6e-b7c3-45ce-b372-25bfb29418af/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label53.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fded4d6e-b7c3-45ce-b372-25bfb29418af/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fded4d6e-b7c3-45ce-b372-25bfb29418af/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 af240f3a57e11730008159bfb37736abca76e7de ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 01:30:19,336 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:30:19,340 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:30:19,421 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:30:19,422 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:30:19,429 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:30:19,440 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:30:19,449 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:30:19,453 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:30:19,460 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:30:19,462 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:30:19,465 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:30:19,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:30:19,470 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:30:19,472 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:30:19,475 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:30:19,477 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:30:19,481 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:30:19,486 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:30:19,495 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:30:19,498 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:30:19,499 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:30:19,502 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:30:19,504 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:30:19,515 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:30:19,516 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:30:19,516 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:30:19,519 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:30:19,520 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:30:19,522 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:30:19,523 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:30:19,525 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:30:19,528 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:30:19,530 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:30:19,532 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:30:19,532 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:30:19,533 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:30:19,534 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:30:19,534 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:30:19,536 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:30:19,539 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:30:19,542 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fded4d6e-b7c3-45ce-b372-25bfb29418af/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 01:30:19,583 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:30:19,583 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:30:19,586 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:30:19,586 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:30:19,586 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:30:19,587 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:30:19,587 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:30:19,588 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:30:19,588 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:30:19,588 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:30:19,590 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:30:19,590 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:30:19,591 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:30:19,591 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:30:19,591 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:30:19,592 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:30:19,592 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:30:19,592 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:30:19,593 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:30:19,593 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:30:19,593 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:30:19,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:30:19,594 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:30:19,594 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:30:19,594 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:30:19,595 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:30:19,595 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:30:19,595 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:30:19,596 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:30:19,596 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_fded4d6e-b7c3-45ce-b372-25bfb29418af/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fded4d6e-b7c3-45ce-b372-25bfb29418af/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af240f3a57e11730008159bfb37736abca76e7de [2020-11-30 01:30:19,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:30:20,005 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:30:20,009 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:30:20,011 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:30:20,012 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:30:20,014 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fded4d6e-b7c3-45ce-b372-25bfb29418af/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem14_label53.c [2020-11-30 01:30:20,115 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fded4d6e-b7c3-45ce-b372-25bfb29418af/bin/uautomizer/data/d5792addf/ffbb617601b84739ad860e60301706cd/FLAG087b1dbbd [2020-11-30 01:30:20,930 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:30:20,931 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fded4d6e-b7c3-45ce-b372-25bfb29418af/sv-benchmarks/c/eca-rers2012/Problem14_label53.c [2020-11-30 01:30:20,971 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fded4d6e-b7c3-45ce-b372-25bfb29418af/bin/uautomizer/data/d5792addf/ffbb617601b84739ad860e60301706cd/FLAG087b1dbbd [2020-11-30 01:30:21,081 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fded4d6e-b7c3-45ce-b372-25bfb29418af/bin/uautomizer/data/d5792addf/ffbb617601b84739ad860e60301706cd [2020-11-30 01:30:21,084 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:30:21,086 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:30:21,089 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:30:21,089 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:30:21,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:30:21,094 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:30:21" (1/1) ... [2020-11-30 01:30:21,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e1579ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:21, skipping insertion in model container [2020-11-30 01:30:21,097 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:30:21" (1/1) ... [2020-11-30 01:30:21,106 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:30:21,165 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:30:21,695 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:30:21,707 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:30:22,081 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:30:22,100 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:30:22,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:22 WrapperNode [2020-11-30 01:30:22,102 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:30:22,104 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:30:22,104 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:30:22,104 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:30:22,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:22" (1/1) ... [2020-11-30 01:30:22,146 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:22" (1/1) ... [2020-11-30 01:30:22,246 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:30:22,247 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:30:22,248 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:30:22,249 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:30:22,260 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:22" (1/1) ... [2020-11-30 01:30:22,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:22" (1/1) ... [2020-11-30 01:30:22,275 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:22" (1/1) ... [2020-11-30 01:30:22,275 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:22" (1/1) ... [2020-11-30 01:30:22,324 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:22" (1/1) ... [2020-11-30 01:30:22,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:22" (1/1) ... [2020-11-30 01:30:22,349 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:22" (1/1) ... [2020-11-30 01:30:22,367 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:30:22,368 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:30:22,369 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:30:22,369 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:30:22,370 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fded4d6e-b7c3-45ce-b372-25bfb29418af/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 01:30:22,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:30:22,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:30:22,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:30:22,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:30:24,681 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:30:24,681 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-30 01:30:24,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:30:24 BoogieIcfgContainer [2020-11-30 01:30:24,686 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:30:24,689 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:30:24,691 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:30:24,694 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:30:24,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:30:21" (1/3) ... [2020-11-30 01:30:24,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a8d00a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:30:24, skipping insertion in model container [2020-11-30 01:30:24,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:22" (2/3) ... [2020-11-30 01:30:24,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a8d00a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:30:24, skipping insertion in model container [2020-11-30 01:30:24,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:30:24" (3/3) ... [2020-11-30 01:30:24,698 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label53.c [2020-11-30 01:30:24,712 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:30:24,717 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 01:30:24,732 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 01:30:24,783 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:30:24,785 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:30:24,786 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:30:24,792 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:30:24,792 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:30:24,792 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:30:24,792 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:30:24,792 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:30:24,814 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states. [2020-11-30 01:30:24,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-30 01:30:24,824 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:30:24,825 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] [2020-11-30 01:30:24,825 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:30:24,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:24,832 INFO L82 PathProgramCache]: Analyzing trace with hash 301649817, now seen corresponding path program 1 times [2020-11-30 01:30:24,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:24,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999698582] [2020-11-30 01:30:24,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:25,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:25,285 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 01:30:25,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999698582] [2020-11-30 01:30:25,288 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:30:25,288 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:30:25,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179107390] [2020-11-30 01:30:25,296 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:30:25,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:30:25,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:30:25,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:30:25,320 INFO L87 Difference]: Start difference. First operand 246 states. Second operand 3 states. [2020-11-30 01:30:27,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:30:27,197 INFO L93 Difference]: Finished difference Result 670 states and 1201 transitions. [2020-11-30 01:30:27,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:30:27,199 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 49 [2020-11-30 01:30:27,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:30:27,216 INFO L225 Difference]: With dead ends: 670 [2020-11-30 01:30:27,216 INFO L226 Difference]: Without dead ends: 360 [2020-11-30 01:30:27,222 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 01:30:27,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-11-30 01:30:27,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2020-11-30 01:30:27,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-11-30 01:30:27,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 546 transitions. [2020-11-30 01:30:27,302 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 546 transitions. Word has length 49 [2020-11-30 01:30:27,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:30:27,303 INFO L481 AbstractCegarLoop]: Abstraction has 360 states and 546 transitions. [2020-11-30 01:30:27,303 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:30:27,303 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 546 transitions. [2020-11-30 01:30:27,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-11-30 01:30:27,309 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:30:27,310 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:30:27,310 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:30:27,310 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:30:27,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:27,311 INFO L82 PathProgramCache]: Analyzing trace with hash 171197373, now seen corresponding path program 1 times [2020-11-30 01:30:27,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:27,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619273357] [2020-11-30 01:30:27,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:27,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:27,544 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:30:27,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619273357] [2020-11-30 01:30:27,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:30:27,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:30:27,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863015815] [2020-11-30 01:30:27,547 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:30:27,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:30:27,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:30:27,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:30:27,549 INFO L87 Difference]: Start difference. First operand 360 states and 546 transitions. Second operand 3 states. [2020-11-30 01:30:28,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:30:28,841 INFO L93 Difference]: Finished difference Result 1074 states and 1633 transitions. [2020-11-30 01:30:28,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:30:28,842 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 124 [2020-11-30 01:30:28,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:30:28,848 INFO L225 Difference]: With dead ends: 1074 [2020-11-30 01:30:28,848 INFO L226 Difference]: Without dead ends: 716 [2020-11-30 01:30:28,852 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 01:30:28,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2020-11-30 01:30:28,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2020-11-30 01:30:28,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2020-11-30 01:30:28,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 968 transitions. [2020-11-30 01:30:28,909 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 968 transitions. Word has length 124 [2020-11-30 01:30:28,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:30:28,910 INFO L481 AbstractCegarLoop]: Abstraction has 716 states and 968 transitions. [2020-11-30 01:30:28,910 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:30:28,910 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 968 transitions. [2020-11-30 01:30:28,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-11-30 01:30:28,914 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:30:28,915 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:30:28,915 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 01:30:28,915 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:30:28,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:28,916 INFO L82 PathProgramCache]: Analyzing trace with hash 1194005639, now seen corresponding path program 1 times [2020-11-30 01:30:28,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:28,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518325886] [2020-11-30 01:30:28,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:28,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:29,157 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:30:29,157 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518325886] [2020-11-30 01:30:29,157 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:30:29,158 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:30:29,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627361935] [2020-11-30 01:30:29,159 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:30:29,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:30:29,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:30:29,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:30:29,161 INFO L87 Difference]: Start difference. First operand 716 states and 968 transitions. Second operand 4 states. [2020-11-30 01:30:30,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:30:30,861 INFO L93 Difference]: Finished difference Result 1964 states and 2570 transitions. [2020-11-30 01:30:30,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:30:30,862 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 128 [2020-11-30 01:30:30,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:30:30,869 INFO L225 Difference]: With dead ends: 1964 [2020-11-30 01:30:30,869 INFO L226 Difference]: Without dead ends: 1250 [2020-11-30 01:30:30,874 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:30:30,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2020-11-30 01:30:30,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1250. [2020-11-30 01:30:30,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1250 states. [2020-11-30 01:30:30,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1544 transitions. [2020-11-30 01:30:30,941 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1544 transitions. Word has length 128 [2020-11-30 01:30:30,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:30:30,942 INFO L481 AbstractCegarLoop]: Abstraction has 1250 states and 1544 transitions. [2020-11-30 01:30:30,942 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:30:30,942 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1544 transitions. [2020-11-30 01:30:30,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-11-30 01:30:30,950 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:30:30,950 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:30:30,950 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 01:30:30,951 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:30:30,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:30,952 INFO L82 PathProgramCache]: Analyzing trace with hash -2082751882, now seen corresponding path program 1 times [2020-11-30 01:30:30,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:30,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78778349] [2020-11-30 01:30:30,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:30,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:31,263 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-11-30 01:30:31,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78778349] [2020-11-30 01:30:31,264 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:30:31,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:30:31,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187876897] [2020-11-30 01:30:31,266 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:30:31,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:30:31,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:30:31,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:30:31,270 INFO L87 Difference]: Start difference. First operand 1250 states and 1544 transitions. Second operand 4 states. [2020-11-30 01:30:32,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:30:32,708 INFO L93 Difference]: Finished difference Result 2705 states and 3353 transitions. [2020-11-30 01:30:32,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:30:32,710 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 208 [2020-11-30 01:30:32,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:30:32,726 INFO L225 Difference]: With dead ends: 2705 [2020-11-30 01:30:32,726 INFO L226 Difference]: Without dead ends: 1606 [2020-11-30 01:30:32,729 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 01:30:32,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2020-11-30 01:30:32,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1606. [2020-11-30 01:30:32,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1606 states. [2020-11-30 01:30:32,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1801 transitions. [2020-11-30 01:30:32,790 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1801 transitions. Word has length 208 [2020-11-30 01:30:32,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:30:32,792 INFO L481 AbstractCegarLoop]: Abstraction has 1606 states and 1801 transitions. [2020-11-30 01:30:32,793 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:30:32,793 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1801 transitions. [2020-11-30 01:30:32,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2020-11-30 01:30:32,801 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:30:32,802 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, 3, 3, 3, 3, 3, 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] [2020-11-30 01:30:32,802 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 01:30:32,803 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:30:32,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:32,803 INFO L82 PathProgramCache]: Analyzing trace with hash -1616789824, now seen corresponding path program 1 times [2020-11-30 01:30:32,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:32,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491929935] [2020-11-30 01:30:32,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:32,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:33,479 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 188 proven. 130 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-11-30 01:30:33,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491929935] [2020-11-30 01:30:33,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23890967] [2020-11-30 01:30:33,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fded4d6e-b7c3-45ce-b372-25bfb29418af/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 01:30:33,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:33,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 01:30:33,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:30:34,132 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2020-11-30 01:30:34,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:30:34,134 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-30 01:30:34,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382232596] [2020-11-30 01:30:34,135 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:30:34,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:30:34,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:30:34,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:30:34,136 INFO L87 Difference]: Start difference. First operand 1606 states and 1801 transitions. Second operand 3 states. [2020-11-30 01:30:35,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:30:35,447 INFO L93 Difference]: Finished difference Result 3388 states and 3901 transitions. [2020-11-30 01:30:35,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:30:35,448 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 335 [2020-11-30 01:30:35,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:30:35,461 INFO L225 Difference]: With dead ends: 3388 [2020-11-30 01:30:35,462 INFO L226 Difference]: Without dead ends: 1962 [2020-11-30 01:30:35,465 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:30:35,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2020-11-30 01:30:35,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1962. [2020-11-30 01:30:35,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1962 states. [2020-11-30 01:30:35,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2220 transitions. [2020-11-30 01:30:35,529 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2220 transitions. Word has length 335 [2020-11-30 01:30:35,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:30:35,530 INFO L481 AbstractCegarLoop]: Abstraction has 1962 states and 2220 transitions. [2020-11-30 01:30:35,531 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:30:35,531 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2220 transitions. [2020-11-30 01:30:35,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2020-11-30 01:30:35,538 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:30:35,539 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:30:35,755 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:30:35,755 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:30:35,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:35,756 INFO L82 PathProgramCache]: Analyzing trace with hash 596465162, now seen corresponding path program 1 times [2020-11-30 01:30:35,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:35,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137697857] [2020-11-30 01:30:35,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:35,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:36,431 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 271 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:30:36,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137697857] [2020-11-30 01:30:36,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1321723440] [2020-11-30 01:30:36,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fded4d6e-b7c3-45ce-b372-25bfb29418af/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 01:30:36,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:36,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 01:30:36,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:30:36,864 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2020-11-30 01:30:36,864 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:30:36,865 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-11-30 01:30:36,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932120719] [2020-11-30 01:30:36,867 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:30:36,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:30:36,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:30:36,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:30:36,873 INFO L87 Difference]: Start difference. First operand 1962 states and 2220 transitions. Second operand 3 states. [2020-11-30 01:30:38,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:30:38,155 INFO L93 Difference]: Finished difference Result 4278 states and 4949 transitions. [2020-11-30 01:30:38,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:30:38,156 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 339 [2020-11-30 01:30:38,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:30:38,171 INFO L225 Difference]: With dead ends: 4278 [2020-11-30 01:30:38,172 INFO L226 Difference]: Without dead ends: 2318 [2020-11-30 01:30:38,175 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:30:38,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2020-11-30 01:30:38,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 1606. [2020-11-30 01:30:38,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1606 states. [2020-11-30 01:30:38,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1805 transitions. [2020-11-30 01:30:38,230 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1805 transitions. Word has length 339 [2020-11-30 01:30:38,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:30:38,239 INFO L481 AbstractCegarLoop]: Abstraction has 1606 states and 1805 transitions. [2020-11-30 01:30:38,239 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:30:38,239 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1805 transitions. [2020-11-30 01:30:38,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2020-11-30 01:30:38,246 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:30:38,247 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:30:38,475 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:30:38,475 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:30:38,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:38,476 INFO L82 PathProgramCache]: Analyzing trace with hash -1847768212, now seen corresponding path program 1 times [2020-11-30 01:30:38,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:38,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440941922] [2020-11-30 01:30:38,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:38,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:38,995 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 195 proven. 130 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2020-11-30 01:30:38,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440941922] [2020-11-30 01:30:38,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [596709374] [2020-11-30 01:30:38,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fded4d6e-b7c3-45ce-b372-25bfb29418af/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 01:30:39,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:39,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 01:30:39,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:30:39,384 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2020-11-30 01:30:39,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:30:39,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-11-30 01:30:39,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559565593] [2020-11-30 01:30:39,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:30:39,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:30:39,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:30:39,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:30:39,388 INFO L87 Difference]: Start difference. First operand 1606 states and 1805 transitions. Second operand 3 states. [2020-11-30 01:30:40,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:30:40,444 INFO L93 Difference]: Finished difference Result 3388 states and 3919 transitions. [2020-11-30 01:30:40,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:30:40,444 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 342 [2020-11-30 01:30:40,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:30:40,460 INFO L225 Difference]: With dead ends: 3388 [2020-11-30 01:30:40,460 INFO L226 Difference]: Without dead ends: 2140 [2020-11-30 01:30:40,463 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:30:40,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2020-11-30 01:30:40,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 2140. [2020-11-30 01:30:40,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2140 states. [2020-11-30 01:30:40,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2378 transitions. [2020-11-30 01:30:40,523 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2378 transitions. Word has length 342 [2020-11-30 01:30:40,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:30:40,524 INFO L481 AbstractCegarLoop]: Abstraction has 2140 states and 2378 transitions. [2020-11-30 01:30:40,524 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:30:40,525 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2378 transitions. [2020-11-30 01:30:40,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2020-11-30 01:30:40,533 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:30:40,534 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2020-11-30 01:30:40,750 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:30:40,750 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:30:40,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:40,751 INFO L82 PathProgramCache]: Analyzing trace with hash 1033562024, now seen corresponding path program 1 times [2020-11-30 01:30:40,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:40,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801263030] [2020-11-30 01:30:40,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:40,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:41,039 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-11-30 01:30:41,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801263030] [2020-11-30 01:30:41,039 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:30:41,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:30:41,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474801345] [2020-11-30 01:30:41,041 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:30:41,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:30:41,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:30:41,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:30:41,042 INFO L87 Difference]: Start difference. First operand 2140 states and 2378 transitions. Second operand 3 states. [2020-11-30 01:30:42,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:30:42,165 INFO L93 Difference]: Finished difference Result 4456 states and 5046 transitions. [2020-11-30 01:30:42,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:30:42,165 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 366 [2020-11-30 01:30:42,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:30:42,181 INFO L225 Difference]: With dead ends: 4456 [2020-11-30 01:30:42,181 INFO L226 Difference]: Without dead ends: 2674 [2020-11-30 01:30:42,184 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 01:30:42,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2020-11-30 01:30:42,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2496. [2020-11-30 01:30:42,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2496 states. [2020-11-30 01:30:42,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2787 transitions. [2020-11-30 01:30:42,249 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2787 transitions. Word has length 366 [2020-11-30 01:30:42,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:30:42,250 INFO L481 AbstractCegarLoop]: Abstraction has 2496 states and 2787 transitions. [2020-11-30 01:30:42,250 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:30:42,250 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2787 transitions. [2020-11-30 01:30:42,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2020-11-30 01:30:42,260 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:30:42,260 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:30:42,260 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-30 01:30:42,261 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:30:42,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:42,261 INFO L82 PathProgramCache]: Analyzing trace with hash 1434377727, now seen corresponding path program 1 times [2020-11-30 01:30:42,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:42,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862845666] [2020-11-30 01:30:42,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:42,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:42,572 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-11-30 01:30:42,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862845666] [2020-11-30 01:30:42,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:30:42,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:30:42,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059112790] [2020-11-30 01:30:42,574 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:30:42,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:30:42,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:30:42,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:30:42,577 INFO L87 Difference]: Start difference. First operand 2496 states and 2787 transitions. Second operand 3 states. [2020-11-30 01:30:43,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:30:43,738 INFO L93 Difference]: Finished difference Result 3388 states and 3849 transitions. [2020-11-30 01:30:43,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:30:43,739 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 373 [2020-11-30 01:30:43,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:30:43,760 INFO L225 Difference]: With dead ends: 3388 [2020-11-30 01:30:43,760 INFO L226 Difference]: Without dead ends: 3386 [2020-11-30 01:30:43,762 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 01:30:43,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2020-11-30 01:30:43,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 2852. [2020-11-30 01:30:43,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2852 states. [2020-11-30 01:30:43,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 3253 transitions. [2020-11-30 01:30:43,838 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 3253 transitions. Word has length 373 [2020-11-30 01:30:43,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:30:43,840 INFO L481 AbstractCegarLoop]: Abstraction has 2852 states and 3253 transitions. [2020-11-30 01:30:43,840 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:30:43,840 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 3253 transitions. [2020-11-30 01:30:43,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2020-11-30 01:30:43,846 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:30:43,846 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:30:43,847 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-30 01:30:43,848 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:30:43,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:43,849 INFO L82 PathProgramCache]: Analyzing trace with hash -411883037, now seen corresponding path program 1 times [2020-11-30 01:30:43,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:43,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707738872] [2020-11-30 01:30:43,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:43,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:44,468 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 569 proven. 130 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2020-11-30 01:30:44,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707738872] [2020-11-30 01:30:44,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1487424637] [2020-11-30 01:30:44,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fded4d6e-b7c3-45ce-b372-25bfb29418af/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 01:30:44,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:44,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 607 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 01:30:44,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:30:45,055 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 385 proven. 0 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2020-11-30 01:30:45,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:30:45,056 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2020-11-30 01:30:45,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742755992] [2020-11-30 01:30:45,057 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:30:45,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:30:45,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:30:45,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:30:45,058 INFO L87 Difference]: Start difference. First operand 2852 states and 3253 transitions. Second operand 3 states. [2020-11-30 01:30:45,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:30:45,965 INFO L93 Difference]: Finished difference Result 5524 states and 6328 transitions. [2020-11-30 01:30:45,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:30:45,965 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 450 [2020-11-30 01:30:45,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:30:45,979 INFO L225 Difference]: With dead ends: 5524 [2020-11-30 01:30:45,979 INFO L226 Difference]: Without dead ends: 2852 [2020-11-30 01:30:45,983 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 454 GetRequests, 449 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:30:45,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2020-11-30 01:30:46,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2674. [2020-11-30 01:30:46,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2674 states. [2020-11-30 01:30:46,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 2831 transitions. [2020-11-30 01:30:46,041 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 2831 transitions. Word has length 450 [2020-11-30 01:30:46,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:30:46,042 INFO L481 AbstractCegarLoop]: Abstraction has 2674 states and 2831 transitions. [2020-11-30 01:30:46,042 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:30:46,042 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 2831 transitions. [2020-11-30 01:30:46,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2020-11-30 01:30:46,046 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:30:46,047 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:30:46,264 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:30:46,265 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:30:46,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:46,265 INFO L82 PathProgramCache]: Analyzing trace with hash 180954492, now seen corresponding path program 1 times [2020-11-30 01:30:46,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:46,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262222708] [2020-11-30 01:30:46,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:46,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:46,610 INFO L134 CoverageAnalysis]: Checked inductivity of 731 backedges. 370 proven. 0 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2020-11-30 01:30:46,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262222708] [2020-11-30 01:30:46,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:30:46,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:30:46,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223981194] [2020-11-30 01:30:46,612 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:30:46,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:30:46,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:30:46,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:30:46,613 INFO L87 Difference]: Start difference. First operand 2674 states and 2831 transitions. Second operand 3 states. [2020-11-30 01:30:47,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:30:47,622 INFO L93 Difference]: Finished difference Result 5702 states and 6077 transitions. [2020-11-30 01:30:47,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:30:47,627 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 450 [2020-11-30 01:30:47,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:30:47,648 INFO L225 Difference]: With dead ends: 5702 [2020-11-30 01:30:47,648 INFO L226 Difference]: Without dead ends: 3386 [2020-11-30 01:30:47,652 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 01:30:47,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2020-11-30 01:30:47,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 3030. [2020-11-30 01:30:47,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3030 states. [2020-11-30 01:30:47,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3178 transitions. [2020-11-30 01:30:47,729 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3178 transitions. Word has length 450 [2020-11-30 01:30:47,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:30:47,730 INFO L481 AbstractCegarLoop]: Abstraction has 3030 states and 3178 transitions. [2020-11-30 01:30:47,730 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:30:47,730 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3178 transitions. [2020-11-30 01:30:47,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 647 [2020-11-30 01:30:47,738 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:30:47,739 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:30:47,739 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-30 01:30:47,739 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:30:47,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:47,740 INFO L82 PathProgramCache]: Analyzing trace with hash -809086369, now seen corresponding path program 1 times [2020-11-30 01:30:47,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:47,740 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898515640] [2020-11-30 01:30:47,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:47,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:48,443 INFO L134 CoverageAnalysis]: Checked inductivity of 1214 backedges. 934 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2020-11-30 01:30:48,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898515640] [2020-11-30 01:30:48,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:30:48,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:30:48,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027079563] [2020-11-30 01:30:48,445 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:30:48,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:30:48,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:30:48,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:30:48,446 INFO L87 Difference]: Start difference. First operand 3030 states and 3178 transitions. Second operand 3 states. [2020-11-30 01:30:49,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:30:49,176 INFO L93 Difference]: Finished difference Result 6058 states and 6368 transitions. [2020-11-30 01:30:49,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:30:49,177 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 646 [2020-11-30 01:30:49,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:30:49,191 INFO L225 Difference]: With dead ends: 6058 [2020-11-30 01:30:49,191 INFO L226 Difference]: Without dead ends: 3386 [2020-11-30 01:30:49,195 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 01:30:49,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2020-11-30 01:30:49,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 3386. [2020-11-30 01:30:49,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3386 states. [2020-11-30 01:30:49,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3539 transitions. [2020-11-30 01:30:49,272 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3539 transitions. Word has length 646 [2020-11-30 01:30:49,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:30:49,273 INFO L481 AbstractCegarLoop]: Abstraction has 3386 states and 3539 transitions. [2020-11-30 01:30:49,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:30:49,274 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3539 transitions. [2020-11-30 01:30:49,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 753 [2020-11-30 01:30:49,284 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:30:49,284 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:30:49,285 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-30 01:30:49,285 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:30:49,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:49,286 INFO L82 PathProgramCache]: Analyzing trace with hash -259304175, now seen corresponding path program 2 times [2020-11-30 01:30:49,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:49,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596215960] [2020-11-30 01:30:49,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:49,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:50,593 INFO L134 CoverageAnalysis]: Checked inductivity of 1765 backedges. 1207 proven. 68 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2020-11-30 01:30:50,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596215960] [2020-11-30 01:30:50,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [901081330] [2020-11-30 01:30:50,594 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fded4d6e-b7c3-45ce-b372-25bfb29418af/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 01:30:50,866 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-30 01:30:50,866 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 01:30:50,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 956 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 01:30:50,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:30:52,206 INFO L134 CoverageAnalysis]: Checked inductivity of 1765 backedges. 1072 proven. 203 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2020-11-30 01:30:52,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 01:30:52,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-11-30 01:30:52,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929495510] [2020-11-30 01:30:52,209 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 01:30:52,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:30:52,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 01:30:52,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:30:52,211 INFO L87 Difference]: Start difference. First operand 3386 states and 3539 transitions. Second operand 7 states. [2020-11-30 01:30:54,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:30:54,372 INFO L93 Difference]: Finished difference Result 7180 states and 7501 transitions. [2020-11-30 01:30:54,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 01:30:54,373 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 752 [2020-11-30 01:30:54,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:30:54,396 INFO L225 Difference]: With dead ends: 7180 [2020-11-30 01:30:54,397 INFO L226 Difference]: Without dead ends: 3974 [2020-11-30 01:30:54,401 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 758 GetRequests, 750 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-11-30 01:30:54,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3974 states. [2020-11-30 01:30:54,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3974 to 3208. [2020-11-30 01:30:54,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3208 states. [2020-11-30 01:30:54,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3357 transitions. [2020-11-30 01:30:54,476 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3357 transitions. Word has length 752 [2020-11-30 01:30:54,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:30:54,477 INFO L481 AbstractCegarLoop]: Abstraction has 3208 states and 3357 transitions. [2020-11-30 01:30:54,477 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 01:30:54,477 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3357 transitions. [2020-11-30 01:30:54,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 760 [2020-11-30 01:30:54,487 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:30:54,488 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:30:54,703 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-11-30 01:30:54,703 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:30:54,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:54,704 INFO L82 PathProgramCache]: Analyzing trace with hash -571883096, now seen corresponding path program 1 times [2020-11-30 01:30:54,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:54,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675089759] [2020-11-30 01:30:54,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:54,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:56,406 INFO L134 CoverageAnalysis]: Checked inductivity of 1779 backedges. 1196 proven. 93 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2020-11-30 01:30:56,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675089759] [2020-11-30 01:30:56,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536723573] [2020-11-30 01:30:56,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fded4d6e-b7c3-45ce-b372-25bfb29418af/bin/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:30:56,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:56,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 963 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 01:30:56,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:30:57,370 INFO L134 CoverageAnalysis]: Checked inductivity of 1779 backedges. 1289 proven. 0 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2020-11-30 01:30:57,370 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:30:57,371 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-30 01:30:57,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351731721] [2020-11-30 01:30:57,372 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:30:57,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:30:57,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:30:57,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:30:57,373 INFO L87 Difference]: Start difference. First operand 3208 states and 3357 transitions. Second operand 3 states. [2020-11-30 01:30:58,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:30:58,056 INFO L93 Difference]: Finished difference Result 6236 states and 6533 transitions. [2020-11-30 01:30:58,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:30:58,057 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 759 [2020-11-30 01:30:58,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:30:58,076 INFO L225 Difference]: With dead ends: 6236 [2020-11-30 01:30:58,076 INFO L226 Difference]: Without dead ends: 3208 [2020-11-30 01:30:58,080 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 762 GetRequests, 758 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 01:30:58,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2020-11-30 01:30:58,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 3208. [2020-11-30 01:30:58,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3208 states. [2020-11-30 01:30:58,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3343 transitions. [2020-11-30 01:30:58,151 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3343 transitions. Word has length 759 [2020-11-30 01:30:58,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:30:58,152 INFO L481 AbstractCegarLoop]: Abstraction has 3208 states and 3343 transitions. [2020-11-30 01:30:58,152 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:30:58,152 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3343 transitions. [2020-11-30 01:30:58,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 786 [2020-11-30 01:30:58,166 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:30:58,167 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-30 01:30:58,387 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:30:58,387 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:30:58,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:58,388 INFO L82 PathProgramCache]: Analyzing trace with hash 429580071, now seen corresponding path program 1 times [2020-11-30 01:30:58,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:58,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384431181] [2020-11-30 01:30:58,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:58,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:59,216 INFO L134 CoverageAnalysis]: Checked inductivity of 1805 backedges. 1289 proven. 155 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2020-11-30 01:30:59,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384431181] [2020-11-30 01:30:59,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1747353366] [2020-11-30 01:30:59,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fded4d6e-b7c3-45ce-b372-25bfb29418af/bin/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:30:59,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:59,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 992 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 01:30:59,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:30:59,974 INFO L134 CoverageAnalysis]: Checked inductivity of 1805 backedges. 1289 proven. 155 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2020-11-30 01:30:59,974 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 01:30:59,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-11-30 01:30:59,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003450971] [2020-11-30 01:30:59,976 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:30:59,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:30:59,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:30:59,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:30:59,977 INFO L87 Difference]: Start difference. First operand 3208 states and 3343 transitions. Second operand 4 states. [2020-11-30 01:31:01,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:31:01,201 INFO L93 Difference]: Finished difference Result 6770 states and 7089 transitions. [2020-11-30 01:31:01,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:31:01,201 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 785 [2020-11-30 01:31:01,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:31:01,212 INFO L225 Difference]: With dead ends: 6770 [2020-11-30 01:31:01,213 INFO L226 Difference]: Without dead ends: 3742 [2020-11-30 01:31:01,216 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 788 GetRequests, 786 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 01:31:01,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2020-11-30 01:31:01,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3742. [2020-11-30 01:31:01,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3742 states. [2020-11-30 01:31:01,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 3914 transitions. [2020-11-30 01:31:01,279 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 3914 transitions. Word has length 785 [2020-11-30 01:31:01,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:31:01,280 INFO L481 AbstractCegarLoop]: Abstraction has 3742 states and 3914 transitions. [2020-11-30 01:31:01,280 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:31:01,281 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 3914 transitions. [2020-11-30 01:31:01,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 858 [2020-11-30 01:31:01,292 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:31:01,293 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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 01:31:01,519 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-11-30 01:31:01,519 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:31:01,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:31:01,519 INFO L82 PathProgramCache]: Analyzing trace with hash -2017812502, now seen corresponding path program 1 times [2020-11-30 01:31:01,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:31:01,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514621073] [2020-11-30 01:31:01,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:31:01,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:31:02,333 INFO L134 CoverageAnalysis]: Checked inductivity of 2283 backedges. 1470 proven. 0 refuted. 0 times theorem prover too weak. 813 trivial. 0 not checked. [2020-11-30 01:31:02,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514621073] [2020-11-30 01:31:02,333 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:31:02,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:31:02,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563488752] [2020-11-30 01:31:02,334 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:31:02,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:31:02,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:31:02,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:31:02,335 INFO L87 Difference]: Start difference. First operand 3742 states and 3914 transitions. Second operand 3 states. [2020-11-30 01:31:02,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:31:02,991 INFO L93 Difference]: Finished difference Result 8194 states and 8588 transitions. [2020-11-30 01:31:02,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:31:02,992 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 857 [2020-11-30 01:31:02,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:31:03,001 INFO L225 Difference]: With dead ends: 8194 [2020-11-30 01:31:03,002 INFO L226 Difference]: Without dead ends: 4632 [2020-11-30 01:31:03,006 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 01:31:03,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2020-11-30 01:31:03,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4454. [2020-11-30 01:31:03,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4454 states. [2020-11-30 01:31:03,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 4644 transitions. [2020-11-30 01:31:03,076 INFO L78 Accepts]: Start accepts. Automaton has 4454 states and 4644 transitions. Word has length 857 [2020-11-30 01:31:03,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:31:03,077 INFO L481 AbstractCegarLoop]: Abstraction has 4454 states and 4644 transitions. [2020-11-30 01:31:03,078 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:31:03,078 INFO L276 IsEmpty]: Start isEmpty. Operand 4454 states and 4644 transitions. [2020-11-30 01:31:03,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 876 [2020-11-30 01:31:03,088 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:31:03,089 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:31:03,089 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-30 01:31:03,089 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:31:03,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:31:03,090 INFO L82 PathProgramCache]: Analyzing trace with hash -727352451, now seen corresponding path program 1 times [2020-11-30 01:31:03,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:31:03,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427459228] [2020-11-30 01:31:03,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:31:03,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:31:03,888 INFO L134 CoverageAnalysis]: Checked inductivity of 2301 backedges. 1620 proven. 0 refuted. 0 times theorem prover too weak. 681 trivial. 0 not checked. [2020-11-30 01:31:03,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427459228] [2020-11-30 01:31:03,889 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:31:03,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:31:03,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133809472] [2020-11-30 01:31:03,890 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:31:03,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:31:03,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:31:03,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:31:03,891 INFO L87 Difference]: Start difference. First operand 4454 states and 4644 transitions. Second operand 3 states. [2020-11-30 01:31:04,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:31:04,499 INFO L93 Difference]: Finished difference Result 9262 states and 9667 transitions. [2020-11-30 01:31:04,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:31:04,499 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 875 [2020-11-30 01:31:04,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:31:04,505 INFO L225 Difference]: With dead ends: 9262 [2020-11-30 01:31:04,505 INFO L226 Difference]: Without dead ends: 4988 [2020-11-30 01:31:04,510 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 01:31:04,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2020-11-30 01:31:04,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4988. [2020-11-30 01:31:04,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4988 states. [2020-11-30 01:31:04,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5178 transitions. [2020-11-30 01:31:04,585 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5178 transitions. Word has length 875 [2020-11-30 01:31:04,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:31:04,586 INFO L481 AbstractCegarLoop]: Abstraction has 4988 states and 5178 transitions. [2020-11-30 01:31:04,586 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:31:04,586 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5178 transitions. [2020-11-30 01:31:04,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 915 [2020-11-30 01:31:04,597 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:31:04,598 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 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, 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 01:31:04,598 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-30 01:31:04,598 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:31:04,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:31:04,599 INFO L82 PathProgramCache]: Analyzing trace with hash 586268936, now seen corresponding path program 1 times [2020-11-30 01:31:04,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:31:04,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877746068] [2020-11-30 01:31:04,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:31:04,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:31:05,429 INFO L134 CoverageAnalysis]: Checked inductivity of 2515 backedges. 1702 proven. 0 refuted. 0 times theorem prover too weak. 813 trivial. 0 not checked. [2020-11-30 01:31:05,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877746068] [2020-11-30 01:31:05,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:31:05,430 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:31:05,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004479326] [2020-11-30 01:31:05,430 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:31:05,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:31:05,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:31:05,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:31:05,431 INFO L87 Difference]: Start difference. First operand 4988 states and 5178 transitions. Second operand 3 states. [2020-11-30 01:31:06,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:31:06,134 INFO L93 Difference]: Finished difference Result 9796 states and 10176 transitions. [2020-11-30 01:31:06,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:31:06,135 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 914 [2020-11-30 01:31:06,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:31:06,141 INFO L225 Difference]: With dead ends: 9796 [2020-11-30 01:31:06,141 INFO L226 Difference]: Without dead ends: 4988 [2020-11-30 01:31:06,146 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 01:31:06,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2020-11-30 01:31:06,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4810. [2020-11-30 01:31:06,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4810 states. [2020-11-30 01:31:06,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 4955 transitions. [2020-11-30 01:31:06,219 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 4955 transitions. Word has length 914 [2020-11-30 01:31:06,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:31:06,220 INFO L481 AbstractCegarLoop]: Abstraction has 4810 states and 4955 transitions. [2020-11-30 01:31:06,220 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:31:06,221 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 4955 transitions. [2020-11-30 01:31:06,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 953 [2020-11-30 01:31:06,232 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:31:06,233 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:31:06,233 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-11-30 01:31:06,233 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:31:06,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:31:06,234 INFO L82 PathProgramCache]: Analyzing trace with hash -402961606, now seen corresponding path program 1 times [2020-11-30 01:31:06,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:31:06,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945495365] [2020-11-30 01:31:06,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:31:06,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:31:07,309 INFO L134 CoverageAnalysis]: Checked inductivity of 2881 backedges. 1865 proven. 72 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2020-11-30 01:31:07,309 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945495365] [2020-11-30 01:31:07,309 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [377390800] [2020-11-30 01:31:07,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fded4d6e-b7c3-45ce-b372-25bfb29418af/bin/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:31:07,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:31:07,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 1204 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 01:31:07,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:31:07,629 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 01:31:07,669 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 01:31:07,697 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 01:31:11,066 INFO L134 CoverageAnalysis]: Checked inductivity of 2881 backedges. 1578 proven. 0 refuted. 0 times theorem prover too weak. 1303 trivial. 0 not checked. [2020-11-30 01:31:11,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:31:11,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2020-11-30 01:31:11,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091853245] [2020-11-30 01:31:11,068 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:31:11,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:31:11,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:31:11,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:31:11,069 INFO L87 Difference]: Start difference. First operand 4810 states and 4955 transitions. Second operand 4 states. [2020-11-30 01:31:13,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:31:13,177 INFO L93 Difference]: Finished difference Result 10330 states and 10646 transitions. [2020-11-30 01:31:13,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:31:13,177 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 952 [2020-11-30 01:31:13,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:31:13,189 INFO L225 Difference]: With dead ends: 10330 [2020-11-30 01:31:13,189 INFO L226 Difference]: Without dead ends: 5700 [2020-11-30 01:31:13,194 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 956 GetRequests, 951 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:31:13,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2020-11-30 01:31:13,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 5166. [2020-11-30 01:31:13,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5166 states. [2020-11-30 01:31:13,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5314 transitions. [2020-11-30 01:31:13,276 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5314 transitions. Word has length 952 [2020-11-30 01:31:13,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:31:13,278 INFO L481 AbstractCegarLoop]: Abstraction has 5166 states and 5314 transitions. [2020-11-30 01:31:13,278 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:31:13,278 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5314 transitions. [2020-11-30 01:31:13,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1084 [2020-11-30 01:31:13,328 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:31:13,329 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 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, 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 01:31:13,551 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:31:13,551 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:31:13,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:31:13,552 INFO L82 PathProgramCache]: Analyzing trace with hash 434530347, now seen corresponding path program 1 times [2020-11-30 01:31:13,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:31:13,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343552404] [2020-11-30 01:31:13,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:31:13,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:31:15,689 INFO L134 CoverageAnalysis]: Checked inductivity of 3420 backedges. 1737 proven. 392 refuted. 0 times theorem prover too weak. 1291 trivial. 0 not checked. [2020-11-30 01:31:15,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343552404] [2020-11-30 01:31:15,690 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [677724494] [2020-11-30 01:31:15,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fded4d6e-b7c3-45ce-b372-25bfb29418af/bin/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:31:15,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:31:15,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 1336 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 01:31:16,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:31:17,338 INFO L134 CoverageAnalysis]: Checked inductivity of 3420 backedges. 2129 proven. 0 refuted. 0 times theorem prover too weak. 1291 trivial. 0 not checked. [2020-11-30 01:31:17,338 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:31:17,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-30 01:31:17,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359285173] [2020-11-30 01:31:17,341 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:31:17,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:31:17,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:31:17,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:31:17,342 INFO L87 Difference]: Start difference. First operand 5166 states and 5314 transitions. Second operand 4 states. [2020-11-30 01:31:18,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:31:18,290 INFO L93 Difference]: Finished difference Result 10152 states and 10447 transitions. [2020-11-30 01:31:18,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:31:18,290 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1083 [2020-11-30 01:31:18,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:31:18,299 INFO L225 Difference]: With dead ends: 10152 [2020-11-30 01:31:18,299 INFO L226 Difference]: Without dead ends: 4988 [2020-11-30 01:31:18,304 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1086 GetRequests, 1081 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:31:18,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2020-11-30 01:31:18,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4988. [2020-11-30 01:31:18,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4988 states. [2020-11-30 01:31:18,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5131 transitions. [2020-11-30 01:31:18,374 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5131 transitions. Word has length 1083 [2020-11-30 01:31:18,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:31:18,375 INFO L481 AbstractCegarLoop]: Abstraction has 4988 states and 5131 transitions. [2020-11-30 01:31:18,375 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:31:18,375 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5131 transitions. [2020-11-30 01:31:18,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1113 [2020-11-30 01:31:18,388 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:31:18,389 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:31:18,603 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:31:18,603 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:31:18,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:31:18,604 INFO L82 PathProgramCache]: Analyzing trace with hash -1605957264, now seen corresponding path program 1 times [2020-11-30 01:31:18,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:31:18,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743099327] [2020-11-30 01:31:18,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:31:18,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:31:19,612 INFO L134 CoverageAnalysis]: Checked inductivity of 3504 backedges. 1706 proven. 0 refuted. 0 times theorem prover too weak. 1798 trivial. 0 not checked. [2020-11-30 01:31:19,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743099327] [2020-11-30 01:31:19,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:31:19,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:31:19,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451405774] [2020-11-30 01:31:19,614 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:31:19,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:31:19,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:31:19,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:31:19,614 INFO L87 Difference]: Start difference. First operand 4988 states and 5131 transitions. Second operand 3 states. [2020-11-30 01:31:20,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:31:20,176 INFO L93 Difference]: Finished difference Result 9796 states and 10081 transitions. [2020-11-30 01:31:20,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:31:20,177 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1112 [2020-11-30 01:31:20,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:31:20,185 INFO L225 Difference]: With dead ends: 9796 [2020-11-30 01:31:20,185 INFO L226 Difference]: Without dead ends: 4632 [2020-11-30 01:31:20,190 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 01:31:20,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2020-11-30 01:31:20,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4632. [2020-11-30 01:31:20,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4632 states. [2020-11-30 01:31:20,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4726 transitions. [2020-11-30 01:31:20,258 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4726 transitions. Word has length 1112 [2020-11-30 01:31:20,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:31:20,259 INFO L481 AbstractCegarLoop]: Abstraction has 4632 states and 4726 transitions. [2020-11-30 01:31:20,259 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:31:20,259 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4726 transitions. [2020-11-30 01:31:20,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1193 [2020-11-30 01:31:20,273 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:31:20,274 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:31:20,274 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-11-30 01:31:20,274 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:31:20,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:31:20,275 INFO L82 PathProgramCache]: Analyzing trace with hash 1731884772, now seen corresponding path program 1 times [2020-11-30 01:31:20,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:31:20,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562632373] [2020-11-30 01:31:20,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:31:20,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:31:21,631 INFO L134 CoverageAnalysis]: Checked inductivity of 4677 backedges. 1982 proven. 0 refuted. 0 times theorem prover too weak. 2695 trivial. 0 not checked. [2020-11-30 01:31:21,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562632373] [2020-11-30 01:31:21,631 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:31:21,631 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:31:21,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162648508] [2020-11-30 01:31:21,632 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:31:21,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:31:21,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:31:21,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:31:21,633 INFO L87 Difference]: Start difference. First operand 4632 states and 4726 transitions. Second operand 3 states. [2020-11-30 01:31:22,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:31:22,155 INFO L93 Difference]: Finished difference Result 9084 states and 9271 transitions. [2020-11-30 01:31:22,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:31:22,158 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1192 [2020-11-30 01:31:22,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:31:22,164 INFO L225 Difference]: With dead ends: 9084 [2020-11-30 01:31:22,165 INFO L226 Difference]: Without dead ends: 4632 [2020-11-30 01:31:22,169 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 01:31:22,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2020-11-30 01:31:22,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4632. [2020-11-30 01:31:22,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4632 states. [2020-11-30 01:31:22,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4722 transitions. [2020-11-30 01:31:22,231 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4722 transitions. Word has length 1192 [2020-11-30 01:31:22,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:31:22,232 INFO L481 AbstractCegarLoop]: Abstraction has 4632 states and 4722 transitions. [2020-11-30 01:31:22,232 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:31:22,232 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4722 transitions. [2020-11-30 01:31:22,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1613 [2020-11-30 01:31:22,253 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:31:22,254 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:31:22,255 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-11-30 01:31:22,255 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:31:22,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:31:22,256 INFO L82 PathProgramCache]: Analyzing trace with hash -337433786, now seen corresponding path program 1 times [2020-11-30 01:31:22,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:31:22,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882226208] [2020-11-30 01:31:22,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:31:22,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:31:24,140 INFO L134 CoverageAnalysis]: Checked inductivity of 8354 backedges. 1578 proven. 0 refuted. 0 times theorem prover too weak. 6776 trivial. 0 not checked. [2020-11-30 01:31:24,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882226208] [2020-11-30 01:31:24,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:31:24,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:31:24,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509182907] [2020-11-30 01:31:24,142 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:31:24,143 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:31:24,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:31:24,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:31:24,143 INFO L87 Difference]: Start difference. First operand 4632 states and 4722 transitions. Second operand 3 states. [2020-11-30 01:31:24,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:31:24,684 INFO L93 Difference]: Finished difference Result 9084 states and 9263 transitions. [2020-11-30 01:31:24,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:31:24,685 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1612 [2020-11-30 01:31:24,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:31:24,689 INFO L225 Difference]: With dead ends: 9084 [2020-11-30 01:31:24,689 INFO L226 Difference]: Without dead ends: 4632 [2020-11-30 01:31:24,693 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 01:31:24,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2020-11-30 01:31:24,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4454. [2020-11-30 01:31:24,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4454 states. [2020-11-30 01:31:24,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 4534 transitions. [2020-11-30 01:31:24,738 INFO L78 Accepts]: Start accepts. Automaton has 4454 states and 4534 transitions. Word has length 1612 [2020-11-30 01:31:24,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:31:24,740 INFO L481 AbstractCegarLoop]: Abstraction has 4454 states and 4534 transitions. [2020-11-30 01:31:24,740 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:31:24,740 INFO L276 IsEmpty]: Start isEmpty. Operand 4454 states and 4534 transitions. [2020-11-30 01:31:24,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1663 [2020-11-30 01:31:24,757 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:31:24,758 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:31:24,759 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-11-30 01:31:24,759 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:31:24,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:31:24,760 INFO L82 PathProgramCache]: Analyzing trace with hash 240964685, now seen corresponding path program 1 times [2020-11-30 01:31:24,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:31:24,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823116648] [2020-11-30 01:31:24,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:31:24,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:31:27,722 INFO L134 CoverageAnalysis]: Checked inductivity of 8507 backedges. 1838 proven. 1045 refuted. 0 times theorem prover too weak. 5624 trivial. 0 not checked. [2020-11-30 01:31:27,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823116648] [2020-11-30 01:31:27,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369630623] [2020-11-30 01:31:27,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fded4d6e-b7c3-45ce-b372-25bfb29418af/bin/uautomizer/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:31:28,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:31:28,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 2031 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 01:31:28,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:31:29,694 INFO L134 CoverageAnalysis]: Checked inductivity of 8507 backedges. 2883 proven. 0 refuted. 0 times theorem prover too weak. 5624 trivial. 0 not checked. [2020-11-30 01:31:29,694 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:31:29,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-30 01:31:29,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181447086] [2020-11-30 01:31:29,696 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:31:29,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:31:29,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:31:29,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:31:29,696 INFO L87 Difference]: Start difference. First operand 4454 states and 4534 transitions. Second operand 3 states. [2020-11-30 01:31:30,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:31:30,226 INFO L93 Difference]: Finished difference Result 8906 states and 9069 transitions. [2020-11-30 01:31:30,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:31:30,226 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1662 [2020-11-30 01:31:30,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:31:30,230 INFO L225 Difference]: With dead ends: 8906 [2020-11-30 01:31:30,230 INFO L226 Difference]: Without dead ends: 3564 [2020-11-30 01:31:30,234 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1665 GetRequests, 1661 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 01:31:30,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2020-11-30 01:31:30,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3564. [2020-11-30 01:31:30,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3564 states. [2020-11-30 01:31:30,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3619 transitions. [2020-11-30 01:31:30,273 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3619 transitions. Word has length 1662 [2020-11-30 01:31:30,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:31:30,274 INFO L481 AbstractCegarLoop]: Abstraction has 3564 states and 3619 transitions. [2020-11-30 01:31:30,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:31:30,274 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3619 transitions. [2020-11-30 01:31:30,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1734 [2020-11-30 01:31:30,293 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:31:30,294 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:31:30,494 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:31:30,495 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:31:30,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:31:30,495 INFO L82 PathProgramCache]: Analyzing trace with hash -583744593, now seen corresponding path program 1 times [2020-11-30 01:31:30,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:31:30,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587552773] [2020-11-30 01:31:30,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:31:30,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:31:33,987 INFO L134 CoverageAnalysis]: Checked inductivity of 9783 backedges. 1707 proven. 0 refuted. 0 times theorem prover too weak. 8076 trivial. 0 not checked. [2020-11-30 01:31:33,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587552773] [2020-11-30 01:31:33,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:31:33,988 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 01:31:33,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284520829] [2020-11-30 01:31:33,989 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:31:33,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:31:33,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:31:33,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:31:33,990 INFO L87 Difference]: Start difference. First operand 3564 states and 3619 transitions. Second operand 5 states. [2020-11-30 01:31:35,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:31:35,037 INFO L93 Difference]: Finished difference Result 4647 states and 4727 transitions. [2020-11-30 01:31:35,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:31:35,038 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1733 [2020-11-30 01:31:35,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:31:35,042 INFO L225 Difference]: With dead ends: 4647 [2020-11-30 01:31:35,042 INFO L226 Difference]: Without dead ends: 4454 [2020-11-30 01:31:35,044 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:31:35,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2020-11-30 01:31:35,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 4276. [2020-11-30 01:31:35,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4276 states. [2020-11-30 01:31:35,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4349 transitions. [2020-11-30 01:31:35,087 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 4349 transitions. Word has length 1733 [2020-11-30 01:31:35,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:31:35,088 INFO L481 AbstractCegarLoop]: Abstraction has 4276 states and 4349 transitions. [2020-11-30 01:31:35,088 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:31:35,089 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 4349 transitions. [2020-11-30 01:31:35,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1739 [2020-11-30 01:31:35,116 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:31:35,118 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:31:35,118 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-11-30 01:31:35,118 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:31:35,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:31:35,119 INFO L82 PathProgramCache]: Analyzing trace with hash -1530590678, now seen corresponding path program 1 times [2020-11-30 01:31:35,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:31:35,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668576797] [2020-11-30 01:31:35,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:31:35,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:31:38,377 INFO L134 CoverageAnalysis]: Checked inductivity of 9805 backedges. 6650 proven. 0 refuted. 0 times theorem prover too weak. 3155 trivial. 0 not checked. [2020-11-30 01:31:38,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668576797] [2020-11-30 01:31:38,377 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:31:38,378 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 01:31:38,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381805177] [2020-11-30 01:31:38,379 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:31:38,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:31:38,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:31:38,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:31:38,380 INFO L87 Difference]: Start difference. First operand 4276 states and 4349 transitions. Second operand 4 states. [2020-11-30 01:31:39,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:31:39,339 INFO L93 Difference]: Finished difference Result 8016 states and 8147 transitions. [2020-11-30 01:31:39,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:31:39,340 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1738 [2020-11-30 01:31:39,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:31:39,344 INFO L225 Difference]: With dead ends: 8016 [2020-11-30 01:31:39,344 INFO L226 Difference]: Without dead ends: 4098 [2020-11-30 01:31:39,347 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 01:31:39,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2020-11-30 01:31:39,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 3742. [2020-11-30 01:31:39,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3742 states. [2020-11-30 01:31:39,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 3784 transitions. [2020-11-30 01:31:39,386 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 3784 transitions. Word has length 1738 [2020-11-30 01:31:39,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:31:39,387 INFO L481 AbstractCegarLoop]: Abstraction has 3742 states and 3784 transitions. [2020-11-30 01:31:39,387 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:31:39,387 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 3784 transitions. [2020-11-30 01:31:39,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2036 [2020-11-30 01:31:39,408 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:31:39,409 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 11, 11, 11, 10, 10, 10, 10, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:31:39,409 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-11-30 01:31:39,410 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:31:39,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:31:39,410 INFO L82 PathProgramCache]: Analyzing trace with hash -293155404, now seen corresponding path program 1 times [2020-11-30 01:31:39,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:31:39,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215272157] [2020-11-30 01:31:39,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:31:39,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:31:42,232 INFO L134 CoverageAnalysis]: Checked inductivity of 13209 backedges. 1965 proven. 0 refuted. 0 times theorem prover too weak. 11244 trivial. 0 not checked. [2020-11-30 01:31:42,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215272157] [2020-11-30 01:31:42,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:31:42,232 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 01:31:42,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752219441] [2020-11-30 01:31:42,233 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:31:42,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:31:42,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:31:42,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:31:42,234 INFO L87 Difference]: Start difference. First operand 3742 states and 3784 transitions. Second operand 4 states. [2020-11-30 01:31:42,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:31:42,844 INFO L93 Difference]: Finished difference Result 3755 states and 3797 transitions. [2020-11-30 01:31:42,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:31:42,845 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 2035 [2020-11-30 01:31:42,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:31:42,846 INFO L225 Difference]: With dead ends: 3755 [2020-11-30 01:31:42,846 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 01:31:42,847 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 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 01:31:42,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 01:31:42,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 01:31:42,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 01:31:42,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 01:31:42,848 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2035 [2020-11-30 01:31:42,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:31:42,848 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:31:42,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:31:42,848 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 01:31:42,848 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 01:31:42,848 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-11-30 01:31:42,850 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 01:31:43,030 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 137 [2020-11-30 01:31:43,132 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 137 [2020-11-30 01:31:44,411 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 124 DAG size of output: 80 [2020-11-30 01:31:45,537 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 124 DAG size of output: 80 [2020-11-30 01:31:45,540 INFO L274 CegarLoopResult]: For program point L762(lines 762 880) no Hoare annotation was computed. [2020-11-30 01:31:45,540 INFO L274 CegarLoopResult]: For program point L895(line 895) no Hoare annotation was computed. [2020-11-30 01:31:45,540 INFO L274 CegarLoopResult]: For program point L829(lines 829 880) no Hoare annotation was computed. [2020-11-30 01:31:45,540 INFO L274 CegarLoopResult]: For program point L631(lines 631 880) no Hoare annotation was computed. [2020-11-30 01:31:45,540 INFO L274 CegarLoopResult]: For program point L565(lines 565 880) no Hoare annotation was computed. [2020-11-30 01:31:45,540 INFO L274 CegarLoopResult]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,541 INFO L274 CegarLoopResult]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,541 INFO L274 CegarLoopResult]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,541 INFO L274 CegarLoopResult]: For program point L698(lines 698 880) no Hoare annotation was computed. [2020-11-30 01:31:45,541 INFO L274 CegarLoopResult]: For program point L500(lines 500 880) no Hoare annotation was computed. [2020-11-30 01:31:45,541 INFO L274 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-11-30 01:31:45,541 INFO L274 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-11-30 01:31:45,541 INFO L274 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-11-30 01:31:45,541 INFO L274 CegarLoopResult]: For program point L369(lines 369 880) no Hoare annotation was computed. [2020-11-30 01:31:45,541 INFO L274 CegarLoopResult]: For program point L303(lines 303 880) no Hoare annotation was computed. [2020-11-30 01:31:45,541 INFO L274 CegarLoopResult]: For program point L436(lines 436 880) no Hoare annotation was computed. [2020-11-30 01:31:45,541 INFO L274 CegarLoopResult]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,541 INFO L274 CegarLoopResult]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,541 INFO L274 CegarLoopResult]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,542 INFO L274 CegarLoopResult]: For program point L239(lines 239 880) no Hoare annotation was computed. [2020-11-30 01:31:45,542 INFO L274 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2020-11-30 01:31:45,542 INFO L274 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-11-30 01:31:45,542 INFO L274 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-11-30 01:31:45,542 INFO L274 CegarLoopResult]: For program point L768(lines 768 880) no Hoare annotation was computed. [2020-11-30 01:31:45,542 INFO L274 CegarLoopResult]: For program point L636(lines 636 880) no Hoare annotation was computed. [2020-11-30 01:31:45,542 INFO L274 CegarLoopResult]: For program point L835(lines 835 880) no Hoare annotation was computed. [2020-11-30 01:31:45,542 INFO L274 CegarLoopResult]: For program point L571(lines 571 880) no Hoare annotation was computed. [2020-11-30 01:31:45,542 INFO L274 CegarLoopResult]: For program point L505(lines 505 880) no Hoare annotation was computed. [2020-11-30 01:31:45,542 INFO L274 CegarLoopResult]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,542 INFO L274 CegarLoopResult]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,542 INFO L274 CegarLoopResult]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,542 INFO L274 CegarLoopResult]: For program point L704(lines 704 880) no Hoare annotation was computed. [2020-11-30 01:31:45,542 INFO L274 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2020-11-30 01:31:45,542 INFO L274 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-11-30 01:31:45,542 INFO L274 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-11-30 01:31:45,542 INFO L274 CegarLoopResult]: For program point L309(lines 309 880) no Hoare annotation was computed. [2020-11-30 01:31:45,542 INFO L274 CegarLoopResult]: For program point L442(lines 442 880) no Hoare annotation was computed. [2020-11-30 01:31:45,542 INFO L274 CegarLoopResult]: For program point L376(lines 376 880) no Hoare annotation was computed. [2020-11-30 01:31:45,542 INFO L274 CegarLoopResult]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,543 INFO L274 CegarLoopResult]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,543 INFO L274 CegarLoopResult]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,543 INFO L274 CegarLoopResult]: For program point L245(lines 245 880) no Hoare annotation was computed. [2020-11-30 01:31:45,543 INFO L274 CegarLoopResult]: For program point L179(line 179) no Hoare annotation was computed. [2020-11-30 01:31:45,543 INFO L274 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2020-11-30 01:31:45,543 INFO L274 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-11-30 01:31:45,543 INFO L274 CegarLoopResult]: For program point L774(lines 774 880) no Hoare annotation was computed. [2020-11-30 01:31:45,543 INFO L274 CegarLoopResult]: For program point L642(lines 642 880) no Hoare annotation was computed. [2020-11-30 01:31:45,543 INFO L274 CegarLoopResult]: For program point L510(lines 510 880) no Hoare annotation was computed. [2020-11-30 01:31:45,543 INFO L274 CegarLoopResult]: For program point L841(lines 841 880) no Hoare annotation was computed. [2020-11-30 01:31:45,543 INFO L274 CegarLoopResult]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,543 INFO L274 CegarLoopResult]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,543 INFO L274 CegarLoopResult]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,543 INFO L274 CegarLoopResult]: For program point L710(lines 710 880) no Hoare annotation was computed. [2020-11-30 01:31:45,543 INFO L274 CegarLoopResult]: For program point L578(lines 578 880) no Hoare annotation was computed. [2020-11-30 01:31:45,543 INFO L274 CegarLoopResult]: For program point L182(line 182) no Hoare annotation was computed. [2020-11-30 01:31:45,543 INFO L274 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-11-30 01:31:45,543 INFO L274 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-11-30 01:31:45,543 INFO L274 CegarLoopResult]: For program point L315(lines 315 880) no Hoare annotation was computed. [2020-11-30 01:31:45,543 INFO L274 CegarLoopResult]: For program point L448(lines 448 880) no Hoare annotation was computed. [2020-11-30 01:31:45,543 INFO L274 CegarLoopResult]: For program point L382(lines 382 880) no Hoare annotation was computed. [2020-11-30 01:31:45,543 INFO L274 CegarLoopResult]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,544 INFO L274 CegarLoopResult]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,544 INFO L274 CegarLoopResult]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,544 INFO L274 CegarLoopResult]: For program point L251(lines 251 880) no Hoare annotation was computed. [2020-11-30 01:31:45,544 INFO L274 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-11-30 01:31:45,544 INFO L274 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2020-11-30 01:31:45,544 INFO L274 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-11-30 01:31:45,544 INFO L274 CegarLoopResult]: For program point L648(lines 648 880) no Hoare annotation was computed. [2020-11-30 01:31:45,544 INFO L274 CegarLoopResult]: For program point L516(lines 516 880) no Hoare annotation was computed. [2020-11-30 01:31:45,544 INFO L274 CegarLoopResult]: For program point L847(lines 847 880) no Hoare annotation was computed. [2020-11-30 01:31:45,544 INFO L274 CegarLoopResult]: For program point L781(lines 781 880) no Hoare annotation was computed. [2020-11-30 01:31:45,544 INFO L274 CegarLoopResult]: For program point L583(lines 583 880) no Hoare annotation was computed. [2020-11-30 01:31:45,544 INFO L274 CegarLoopResult]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,544 INFO L274 CegarLoopResult]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,544 INFO L274 CegarLoopResult]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,544 INFO L274 CegarLoopResult]: For program point L716(lines 716 880) no Hoare annotation was computed. [2020-11-30 01:31:45,544 INFO L274 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2020-11-30 01:31:45,544 INFO L274 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-11-30 01:31:45,544 INFO L274 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2020-11-30 01:31:45,544 INFO L274 CegarLoopResult]: For program point L321(lines 321 880) no Hoare annotation was computed. [2020-11-30 01:31:45,544 INFO L274 CegarLoopResult]: For program point L454(lines 454 880) no Hoare annotation was computed. [2020-11-30 01:31:45,544 INFO L274 CegarLoopResult]: For program point L388(lines 388 880) no Hoare annotation was computed. [2020-11-30 01:31:45,544 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 01:31:45,544 INFO L274 CegarLoopResult]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,545 INFO L274 CegarLoopResult]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,545 INFO L274 CegarLoopResult]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,545 INFO L274 CegarLoopResult]: For program point L257(lines 257 880) no Hoare annotation was computed. [2020-11-30 01:31:45,545 INFO L274 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2020-11-30 01:31:45,545 INFO L274 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-11-30 01:31:45,545 INFO L274 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-11-30 01:31:45,545 INFO L274 CegarLoopResult]: For program point L852(lines 852 880) no Hoare annotation was computed. [2020-11-30 01:31:45,545 INFO L274 CegarLoopResult]: For program point L654(lines 654 880) no Hoare annotation was computed. [2020-11-30 01:31:45,545 INFO L274 CegarLoopResult]: For program point L522(lines 522 880) no Hoare annotation was computed. [2020-11-30 01:31:45,545 INFO L274 CegarLoopResult]: For program point L787(lines 787 880) no Hoare annotation was computed. [2020-11-30 01:31:45,545 INFO L274 CegarLoopResult]: For program point L589(lines 589 880) no Hoare annotation was computed. [2020-11-30 01:31:45,545 INFO L274 CegarLoopResult]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,545 INFO L274 CegarLoopResult]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,545 INFO L274 CegarLoopResult]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,545 INFO L274 CegarLoopResult]: For program point L722(lines 722 880) no Hoare annotation was computed. [2020-11-30 01:31:45,545 INFO L274 CegarLoopResult]: For program point L194(line 194) no Hoare annotation was computed. [2020-11-30 01:31:45,545 INFO L274 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2020-11-30 01:31:45,545 INFO L274 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-11-30 01:31:45,545 INFO L274 CegarLoopResult]: For program point L459(lines 459 880) no Hoare annotation was computed. [2020-11-30 01:31:45,545 INFO L274 CegarLoopResult]: For program point L327(lines 327 880) no Hoare annotation was computed. [2020-11-30 01:31:45,545 INFO L274 CegarLoopResult]: For program point L394(lines 394 880) no Hoare annotation was computed. [2020-11-30 01:31:45,545 INFO L274 CegarLoopResult]: For program point L262(lines 262 880) no Hoare annotation was computed. [2020-11-30 01:31:45,545 INFO L274 CegarLoopResult]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,546 INFO L274 CegarLoopResult]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,546 INFO L274 CegarLoopResult]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,546 INFO L274 CegarLoopResult]: For program point L197(line 197) no Hoare annotation was computed. [2020-11-30 01:31:45,546 INFO L274 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2020-11-30 01:31:45,546 INFO L274 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-11-30 01:31:45,546 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 01:31:45,546 INFO L274 CegarLoopResult]: For program point L858(lines 858 880) no Hoare annotation was computed. [2020-11-30 01:31:45,546 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-30 01:31:45,546 INFO L274 CegarLoopResult]: For program point L660(lines 660 880) no Hoare annotation was computed. [2020-11-30 01:31:45,546 INFO L274 CegarLoopResult]: For program point L528(lines 528 880) no Hoare annotation was computed. [2020-11-30 01:31:45,546 INFO L274 CegarLoopResult]: For program point L793(lines 793 880) no Hoare annotation was computed. [2020-11-30 01:31:45,546 INFO L274 CegarLoopResult]: For program point L595(lines 595 880) no Hoare annotation was computed. [2020-11-30 01:31:45,546 INFO L274 CegarLoopResult]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,546 INFO L274 CegarLoopResult]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,546 INFO L274 CegarLoopResult]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,546 INFO L274 CegarLoopResult]: For program point L728(lines 728 880) no Hoare annotation was computed. [2020-11-30 01:31:45,546 INFO L274 CegarLoopResult]: For program point L464(lines 464 880) no Hoare annotation was computed. [2020-11-30 01:31:45,546 INFO L274 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-11-30 01:31:45,546 INFO L274 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-11-30 01:31:45,550 INFO L274 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-11-30 01:31:45,550 INFO L274 CegarLoopResult]: For program point L333(lines 333 880) no Hoare annotation was computed. [2020-11-30 01:31:45,550 INFO L274 CegarLoopResult]: For program point L400(lines 400 880) no Hoare annotation was computed. [2020-11-30 01:31:45,551 INFO L274 CegarLoopResult]: For program point L268(lines 268 880) no Hoare annotation was computed. [2020-11-30 01:31:45,551 INFO L274 CegarLoopResult]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,551 INFO L274 CegarLoopResult]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,551 INFO L274 CegarLoopResult]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,551 INFO L274 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-11-30 01:31:45,551 INFO L274 CegarLoopResult]: For program point L137(line 137) no Hoare annotation was computed. [2020-11-30 01:31:45,551 INFO L274 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-11-30 01:31:45,551 INFO L274 CegarLoopResult]: For program point L864(lines 864 880) no Hoare annotation was computed. [2020-11-30 01:31:45,552 INFO L274 CegarLoopResult]: For program point L666(lines 666 880) no Hoare annotation was computed. [2020-11-30 01:31:45,552 INFO L274 CegarLoopResult]: For program point L534(lines 534 880) no Hoare annotation was computed. [2020-11-30 01:31:45,552 INFO L274 CegarLoopResult]: For program point L799(lines 799 880) no Hoare annotation was computed. [2020-11-30 01:31:45,552 INFO L274 CegarLoopResult]: For program point L601(lines 601 880) no Hoare annotation was computed. [2020-11-30 01:31:45,552 INFO L274 CegarLoopResult]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,552 INFO L274 CegarLoopResult]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,552 INFO L274 CegarLoopResult]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,552 INFO L274 CegarLoopResult]: For program point L734(lines 734 880) no Hoare annotation was computed. [2020-11-30 01:31:45,553 INFO L274 CegarLoopResult]: For program point L470(lines 470 880) no Hoare annotation was computed. [2020-11-30 01:31:45,553 INFO L274 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2020-11-30 01:31:45,553 INFO L274 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-11-30 01:31:45,553 INFO L274 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-11-30 01:31:45,553 INFO L274 CegarLoopResult]: For program point L339(lines 339 880) no Hoare annotation was computed. [2020-11-30 01:31:45,553 INFO L274 CegarLoopResult]: For program point L406(lines 406 880) no Hoare annotation was computed. [2020-11-30 01:31:45,553 INFO L274 CegarLoopResult]: For program point L274(lines 274 880) no Hoare annotation was computed. [2020-11-30 01:31:45,553 INFO L274 CegarLoopResult]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,554 INFO L274 CegarLoopResult]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,554 INFO L274 CegarLoopResult]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,554 INFO L274 CegarLoopResult]: For program point L869(lines 869 880) no Hoare annotation was computed. [2020-11-30 01:31:45,554 INFO L274 CegarLoopResult]: For program point L209(line 209) no Hoare annotation was computed. [2020-11-30 01:31:45,554 INFO L274 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-11-30 01:31:45,554 INFO L274 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2020-11-30 01:31:45,554 INFO L274 CegarLoopResult]: For program point L672(lines 672 880) no Hoare annotation was computed. [2020-11-30 01:31:45,554 INFO L274 CegarLoopResult]: For program point L540(lines 540 880) no Hoare annotation was computed. [2020-11-30 01:31:45,555 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-30 01:31:45,555 INFO L274 CegarLoopResult]: For program point L805(lines 805 880) no Hoare annotation was computed. [2020-11-30 01:31:45,555 INFO L274 CegarLoopResult]: For program point L607(lines 607 880) no Hoare annotation was computed. [2020-11-30 01:31:45,555 INFO L274 CegarLoopResult]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,555 INFO L274 CegarLoopResult]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,555 INFO L274 CegarLoopResult]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,555 INFO L274 CegarLoopResult]: For program point L740(lines 740 880) no Hoare annotation was computed. [2020-11-30 01:31:45,555 INFO L274 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-11-30 01:31:45,556 INFO L274 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2020-11-30 01:31:45,556 INFO L274 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-11-30 01:31:45,556 INFO L274 CegarLoopResult]: For program point L477(lines 477 880) no Hoare annotation was computed. [2020-11-30 01:31:45,556 INFO L274 CegarLoopResult]: For program point L345(lines 345 880) no Hoare annotation was computed. [2020-11-30 01:31:45,556 INFO L274 CegarLoopResult]: For program point L279(lines 279 880) no Hoare annotation was computed. [2020-11-30 01:31:45,556 INFO L274 CegarLoopResult]: For program point L412(lines 412 880) no Hoare annotation was computed. [2020-11-30 01:31:45,556 INFO L274 CegarLoopResult]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,556 INFO L274 CegarLoopResult]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,557 INFO L274 CegarLoopResult]: For program point L875(lines 875 880) no Hoare annotation was computed. [2020-11-30 01:31:45,557 INFO L274 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2020-11-30 01:31:45,557 INFO L274 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-11-30 01:31:45,557 INFO L274 CegarLoopResult]: For program point L678(lines 678 880) no Hoare annotation was computed. [2020-11-30 01:31:45,557 INFO L274 CegarLoopResult]: For program point L546(lines 546 880) no Hoare annotation was computed. [2020-11-30 01:31:45,557 INFO L274 CegarLoopResult]: For program point L811(lines 811 880) no Hoare annotation was computed. [2020-11-30 01:31:45,557 INFO L274 CegarLoopResult]: For program point L745(lines 745 880) no Hoare annotation was computed. [2020-11-30 01:31:45,557 INFO L274 CegarLoopResult]: For program point L613(lines 613 880) no Hoare annotation was computed. [2020-11-30 01:31:45,558 INFO L274 CegarLoopResult]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,558 INFO L274 CegarLoopResult]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,558 INFO L274 CegarLoopResult]: For program point L482(lines 482 880) no Hoare annotation was computed. [2020-11-30 01:31:45,558 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 01:31:45,558 INFO L274 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-11-30 01:31:45,558 INFO L274 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-11-30 01:31:45,558 INFO L274 CegarLoopResult]: For program point L351(lines 351 880) no Hoare annotation was computed. [2020-11-30 01:31:45,558 INFO L274 CegarLoopResult]: For program point L285(lines 285 880) no Hoare annotation was computed. [2020-11-30 01:31:45,559 INFO L274 CegarLoopResult]: For program point L418(lines 418 880) no Hoare annotation was computed. [2020-11-30 01:31:45,559 INFO L274 CegarLoopResult]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,559 INFO L274 CegarLoopResult]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,559 INFO L270 CegarLoopResult]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse13 (+ ~a12~0 43))) (let ((.cse0 (= ~a21~0 10)) (.cse12 (= ~a15~0 8)) (.cse4 (<= 10 ~a21~0)) (.cse9 (<= 9 ~a21~0)) (.cse8 (<= ~a21~0 9)) (.cse15 (<= ~a12~0 76)) (.cse5 (<= 7 ~a21~0)) (.cse10 (<= ~a15~0 7)) (.cse6 (< 0 .cse13)) (.cse3 (<= 9 ~a15~0)) (.cse17 (<= ~a21~0 8)) (.cse7 (<= ~a15~0 8)) (.cse11 (<= ~a24~0 1)) (.cse16 (<= 8 ~a21~0)) (.cse14 (< 80 ~a12~0)) (.cse1 (= ~a24~0 1)) (.cse2 (<= ~a12~0 11)) (.cse18 (<= ~a21~0 6)) (.cse19 (<= ~a15~0 6))) (or (and .cse0 (<= (+ ~a12~0 397559) 0) .cse1) (and .cse2 .cse1 .cse3 .cse4) (and .cse5 .cse6 .cse2 .cse1 .cse7 .cse8) (and .cse9 .cse10 .cse11 .cse8) (and .cse0 .cse12 (<= .cse13 0) .cse1) (and .cse11 .cse14 .cse7 .cse4) (and .cse6 .cse2 .cse12 .cse1 .cse4) (and .cse9 .cse1 .cse7 .cse8 .cse15) (and .cse16 .cse1 .cse17 .cse15) (and .cse5 .cse10 .cse11 .cse17) (and .cse10 .cse6 .cse11 .cse2 .cse17) (and .cse14 .cse1 .cse3 (<= ~a12~0 599999)) (and (<= (+ ~a12~0 49) 0) .cse1 .cse7 .cse17) (and .cse11 .cse14 .cse7 .cse18) (and .cse11 .cse19) (and .cse16 .cse14 .cse1 (exists ((aux_div_v_~a12~0_439_31 Int) (aux_div_aux_mod_v_~a12~0_439_31_31 Int)) (let ((.cse21 (* 5 aux_div_aux_mod_v_~a12~0_439_31_31))) (let ((.cse20 (+ (* 5 aux_div_v_~a12~0_439_31) .cse21))) (and (<= .cse20 366413) (<= 0 .cse21) (< .cse21 5) (<= ~a12~0 aux_div_v_~a12~0_439_31) (< 366344 .cse20)))))) (and .cse2 .cse18 .cse19)))) [2020-11-30 01:31:45,560 INFO L274 CegarLoopResult]: For program point L551(lines 551 880) no Hoare annotation was computed. [2020-11-30 01:31:45,560 INFO L274 CegarLoopResult]: For program point L221(lines 221 880) no Hoare annotation was computed. [2020-11-30 01:31:45,560 INFO L274 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-11-30 01:31:45,560 INFO L274 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-11-30 01:31:45,560 INFO L274 CegarLoopResult]: For program point L684(lines 684 880) no Hoare annotation was computed. [2020-11-30 01:31:45,561 INFO L274 CegarLoopResult]: For program point L817(lines 817 880) no Hoare annotation was computed. [2020-11-30 01:31:45,561 INFO L274 CegarLoopResult]: For program point L751(lines 751 880) no Hoare annotation was computed. [2020-11-30 01:31:45,561 INFO L274 CegarLoopResult]: For program point L619(lines 619 880) no Hoare annotation was computed. [2020-11-30 01:31:45,561 INFO L274 CegarLoopResult]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,561 INFO L274 CegarLoopResult]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,562 INFO L277 CegarLoopResult]: At program point L884(lines 884 900) the Hoare annotation is: true [2020-11-30 01:31:45,562 INFO L274 CegarLoopResult]: For program point L488(lines 488 880) no Hoare annotation was computed. [2020-11-30 01:31:45,562 INFO L274 CegarLoopResult]: For program point L290(lines 290 880) no Hoare annotation was computed. [2020-11-30 01:31:45,562 INFO L274 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-11-30 01:31:45,562 INFO L274 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-11-30 01:31:45,562 INFO L274 CegarLoopResult]: For program point L687(lines 687 880) no Hoare annotation was computed. [2020-11-30 01:31:45,562 INFO L274 CegarLoopResult]: For program point L357(lines 357 880) no Hoare annotation was computed. [2020-11-30 01:31:45,562 INFO L274 CegarLoopResult]: For program point L424(lines 424 880) no Hoare annotation was computed. [2020-11-30 01:31:45,563 INFO L274 CegarLoopResult]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,563 INFO L274 CegarLoopResult]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,563 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 01:31:45,563 INFO L274 CegarLoopResult]: For program point L557(lines 557 880) no Hoare annotation was computed. [2020-11-30 01:31:45,563 INFO L274 CegarLoopResult]: For program point L227(lines 227 880) no Hoare annotation was computed. [2020-11-30 01:31:45,563 INFO L274 CegarLoopResult]: For program point L161(line 161) no Hoare annotation was computed. [2020-11-30 01:31:45,563 INFO L274 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-11-30 01:31:45,563 INFO L274 CegarLoopResult]: For program point L757(lines 757 880) no Hoare annotation was computed. [2020-11-30 01:31:45,564 INFO L274 CegarLoopResult]: For program point L625(lines 625 880) no Hoare annotation was computed. [2020-11-30 01:31:45,564 INFO L274 CegarLoopResult]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,564 INFO L274 CegarLoopResult]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,564 INFO L274 CegarLoopResult]: For program point L31(lines 31 33) no Hoare annotation was computed. [2020-11-30 01:31:45,564 INFO L274 CegarLoopResult]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,564 INFO L274 CegarLoopResult]: For program point L824(lines 824 880) no Hoare annotation was computed. [2020-11-30 01:31:45,565 INFO L270 CegarLoopResult]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse13 (+ ~a12~0 43))) (let ((.cse0 (= ~a21~0 10)) (.cse12 (= ~a15~0 8)) (.cse4 (<= 10 ~a21~0)) (.cse9 (<= 9 ~a21~0)) (.cse8 (<= ~a21~0 9)) (.cse15 (<= ~a12~0 76)) (.cse5 (<= 7 ~a21~0)) (.cse10 (<= ~a15~0 7)) (.cse6 (< 0 .cse13)) (.cse3 (<= 9 ~a15~0)) (.cse17 (<= ~a21~0 8)) (.cse7 (<= ~a15~0 8)) (.cse11 (<= ~a24~0 1)) (.cse16 (<= 8 ~a21~0)) (.cse14 (< 80 ~a12~0)) (.cse1 (= ~a24~0 1)) (.cse2 (<= ~a12~0 11)) (.cse18 (<= ~a21~0 6)) (.cse19 (<= ~a15~0 6))) (or (and .cse0 (<= (+ ~a12~0 397559) 0) .cse1) (and .cse2 .cse1 .cse3 .cse4) (and .cse5 .cse6 .cse2 .cse1 .cse7 .cse8) (and .cse9 .cse10 .cse11 .cse8) (and .cse0 .cse12 (<= .cse13 0) .cse1) (and .cse11 .cse14 .cse7 .cse4) (and .cse6 .cse2 .cse12 .cse1 .cse4) (and .cse9 .cse1 .cse7 .cse8 .cse15) (and .cse16 .cse1 .cse17 .cse15) (and .cse5 .cse10 .cse11 .cse17) (and .cse10 .cse6 .cse11 .cse2 .cse17) (and .cse14 .cse1 .cse3 (<= ~a12~0 599999)) (and (<= (+ ~a12~0 49) 0) .cse1 .cse7 .cse17) (and .cse11 .cse14 .cse7 .cse18) (and .cse11 .cse19) (and .cse16 .cse14 .cse1 (exists ((aux_div_v_~a12~0_439_31 Int) (aux_div_aux_mod_v_~a12~0_439_31_31 Int)) (let ((.cse21 (* 5 aux_div_aux_mod_v_~a12~0_439_31_31))) (let ((.cse20 (+ (* 5 aux_div_v_~a12~0_439_31) .cse21))) (and (<= .cse20 366413) (<= 0 .cse21) (< .cse21 5) (<= ~a12~0 aux_div_v_~a12~0_439_31) (< 366344 .cse20)))))) (and .cse2 .cse18 .cse19)))) [2020-11-30 01:31:45,565 INFO L274 CegarLoopResult]: For program point L494(lines 494 880) no Hoare annotation was computed. [2020-11-30 01:31:45,565 INFO L274 CegarLoopResult]: For program point L296(lines 296 880) no Hoare annotation was computed. [2020-11-30 01:31:45,565 INFO L274 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-11-30 01:31:45,565 INFO L274 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-11-30 01:31:45,565 INFO L274 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-11-30 01:31:45,565 INFO L274 CegarLoopResult]: For program point L693(lines 693 880) no Hoare annotation was computed. [2020-11-30 01:31:45,565 INFO L274 CegarLoopResult]: For program point L363(lines 363 880) no Hoare annotation was computed. [2020-11-30 01:31:45,566 INFO L274 CegarLoopResult]: For program point L562(lines 562 880) no Hoare annotation was computed. [2020-11-30 01:31:45,566 INFO L274 CegarLoopResult]: For program point L430(lines 430 880) no Hoare annotation was computed. [2020-11-30 01:31:45,567 INFO L274 CegarLoopResult]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,567 INFO L274 CegarLoopResult]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,567 INFO L274 CegarLoopResult]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2020-11-30 01:31:45,568 INFO L274 CegarLoopResult]: For program point L233(lines 233 880) no Hoare annotation was computed. [2020-11-30 01:31:45,568 INFO L274 CegarLoopResult]: For program point L167(line 167) no Hoare annotation was computed. [2020-11-30 01:31:45,568 INFO L274 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-11-30 01:31:45,568 INFO L274 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-11-30 01:31:45,591 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 01:31:45,592 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 01:31:45,592 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 01:31:45,592 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 01:31:45,593 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 01:31:45,593 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 01:31:45,593 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 01:31:45,605 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 01:31:45,615 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 01:31:45,616 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 01:31:45,616 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 01:31:45,616 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 01:31:45,616 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 01:31:45,616 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 01:31:45,619 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 01:31:45,623 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 01:31:45,624 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 01:31:45,624 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 01:31:45,624 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 01:31:45,624 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 01:31:45,625 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 01:31:45,626 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 01:31:45,626 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 01:31:45,627 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 01:31:45,627 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 01:31:45,628 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 01:31:45,628 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 01:31:45,628 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 01:31:45,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:31:45 BoogieIcfgContainer [2020-11-30 01:31:45,632 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:31:45,633 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:31:45,633 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:31:45,633 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:31:45,634 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:30:24" (3/4) ... [2020-11-30 01:31:45,637 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 01:31:45,676 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-30 01:31:45,679 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 01:31:45,681 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:31:45,684 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:31:45,713 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((a21 == 10 && a12 + 397559 <= 0) && a24 == 1) || (((a12 <= 11 && a24 == 1) && 9 <= a15) && 10 <= a21)) || (((((7 <= a21 && 0 < a12 + 43) && a12 <= 11) && a24 == 1) && a15 <= 8) && a21 <= 9)) || (((9 <= a21 && a15 <= 7) && a24 <= 1) && a21 <= 9)) || (((a21 == 10 && a15 == 8) && a12 + 43 <= 0) && a24 == 1)) || (((a24 <= 1 && 80 < a12) && a15 <= 8) && 10 <= a21)) || ((((0 < a12 + 43 && a12 <= 11) && a15 == 8) && a24 == 1) && 10 <= a21)) || ((((9 <= a21 && a24 == 1) && a15 <= 8) && a21 <= 9) && a12 <= 76)) || (((8 <= a21 && a24 == 1) && a21 <= 8) && a12 <= 76)) || (((7 <= a21 && a15 <= 7) && a24 <= 1) && a21 <= 8)) || ((((a15 <= 7 && 0 < a12 + 43) && a24 <= 1) && a12 <= 11) && a21 <= 8)) || (((80 < a12 && a24 == 1) && 9 <= a15) && a12 <= 599999)) || (((a12 + 49 <= 0 && a24 == 1) && a15 <= 8) && a21 <= 8)) || (((a24 <= 1 && 80 < a12) && a15 <= 8) && a21 <= 6)) || (a24 <= 1 && a15 <= 6)) || (((8 <= a21 && 80 < a12) && a24 == 1) && (\exists aux_div_v_~a12~0_439_31 : int, aux_div_aux_mod_v_~a12~0_439_31_31 : int :: (((5 * aux_div_v_~a12~0_439_31 + 5 * aux_div_aux_mod_v_~a12~0_439_31_31 <= 366413 && 0 <= 5 * aux_div_aux_mod_v_~a12~0_439_31_31) && 5 * aux_div_aux_mod_v_~a12~0_439_31_31 < 5) && a12 <= aux_div_v_~a12~0_439_31) && 366344 < 5 * aux_div_v_~a12~0_439_31 + 5 * aux_div_aux_mod_v_~a12~0_439_31_31))) || ((a12 <= 11 && a21 <= 6) && a15 <= 6) [2020-11-30 01:31:45,719 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((a21 == 10 && a12 + 397559 <= 0) && a24 == 1) || (((a12 <= 11 && a24 == 1) && 9 <= a15) && 10 <= a21)) || (((((7 <= a21 && 0 < a12 + 43) && a12 <= 11) && a24 == 1) && a15 <= 8) && a21 <= 9)) || (((9 <= a21 && a15 <= 7) && a24 <= 1) && a21 <= 9)) || (((a21 == 10 && a15 == 8) && a12 + 43 <= 0) && a24 == 1)) || (((a24 <= 1 && 80 < a12) && a15 <= 8) && 10 <= a21)) || ((((0 < a12 + 43 && a12 <= 11) && a15 == 8) && a24 == 1) && 10 <= a21)) || ((((9 <= a21 && a24 == 1) && a15 <= 8) && a21 <= 9) && a12 <= 76)) || (((8 <= a21 && a24 == 1) && a21 <= 8) && a12 <= 76)) || (((7 <= a21 && a15 <= 7) && a24 <= 1) && a21 <= 8)) || ((((a15 <= 7 && 0 < a12 + 43) && a24 <= 1) && a12 <= 11) && a21 <= 8)) || (((80 < a12 && a24 == 1) && 9 <= a15) && a12 <= 599999)) || (((a12 + 49 <= 0 && a24 == 1) && a15 <= 8) && a21 <= 8)) || (((a24 <= 1 && 80 < a12) && a15 <= 8) && a21 <= 6)) || (a24 <= 1 && a15 <= 6)) || (((8 <= a21 && 80 < a12) && a24 == 1) && (\exists aux_div_v_~a12~0_439_31 : int, aux_div_aux_mod_v_~a12~0_439_31_31 : int :: (((5 * aux_div_v_~a12~0_439_31 + 5 * aux_div_aux_mod_v_~a12~0_439_31_31 <= 366413 && 0 <= 5 * aux_div_aux_mod_v_~a12~0_439_31_31) && 5 * aux_div_aux_mod_v_~a12~0_439_31_31 < 5) && a12 <= aux_div_v_~a12~0_439_31) && 366344 < 5 * aux_div_v_~a12~0_439_31 + 5 * aux_div_aux_mod_v_~a12~0_439_31_31))) || ((a12 <= 11 && a21 <= 6) && a15 <= 6) [2020-11-30 01:31:45,857 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_fded4d6e-b7c3-45ce-b372-25bfb29418af/bin/uautomizer/witness.graphml [2020-11-30 01:31:45,857 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:31:45,859 INFO L168 Benchmark]: Toolchain (without parser) took 84772.17 ms. Allocated memory was 92.3 MB in the beginning and 3.8 GB in the end (delta: 3.8 GB). Free memory was 60.0 MB in the beginning and 1.8 GB in the end (delta: -1.8 GB). Peak memory consumption was 2.0 GB. Max. memory is 16.1 GB. [2020-11-30 01:31:45,860 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 92.3 MB. Free memory was 49.9 MB in the beginning and 49.8 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:31:45,861 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1013.85 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 60.0 MB in the beginning and 66.2 MB in the end (delta: -6.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 01:31:45,861 INFO L168 Benchmark]: Boogie Procedure Inliner took 143.05 ms. Allocated memory is still 111.1 MB. Free memory was 66.2 MB in the beginning and 56.9 MB in the end (delta: 9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:31:45,862 INFO L168 Benchmark]: Boogie Preprocessor took 120.03 ms. Allocated memory is still 111.1 MB. Free memory was 56.9 MB in the beginning and 50.6 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:31:45,862 INFO L168 Benchmark]: RCFGBuilder took 2318.18 ms. Allocated memory is still 111.1 MB. Free memory was 50.6 MB in the beginning and 46.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 31.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:31:45,863 INFO L168 Benchmark]: TraceAbstraction took 80942.75 ms. Allocated memory was 111.1 MB in the beginning and 3.8 GB in the end (delta: 3.7 GB). Free memory was 46.6 MB in the beginning and 1.8 GB in the end (delta: -1.8 GB). Peak memory consumption was 1.9 GB. Max. memory is 16.1 GB. [2020-11-30 01:31:45,863 INFO L168 Benchmark]: Witness Printer took 224.92 ms. Allocated memory is still 3.8 GB. Free memory was 1.8 GB in the beginning and 1.8 GB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-30 01:31:45,865 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 92.3 MB. Free memory was 49.9 MB in the beginning and 49.8 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1013.85 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 60.0 MB in the beginning and 66.2 MB in the end (delta: -6.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 143.05 ms. Allocated memory is still 111.1 MB. Free memory was 66.2 MB in the beginning and 56.9 MB in the end (delta: 9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 120.03 ms. Allocated memory is still 111.1 MB. Free memory was 56.9 MB in the beginning and 50.6 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2318.18 ms. Allocated memory is still 111.1 MB. Free memory was 50.6 MB in the beginning and 46.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 31.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 80942.75 ms. Allocated memory was 111.1 MB in the beginning and 3.8 GB in the end (delta: 3.7 GB). Free memory was 46.6 MB in the beginning and 1.8 GB in the end (delta: -1.8 GB). Peak memory consumption was 1.9 GB. Max. memory is 16.1 GB. * Witness Printer took 224.92 ms. Allocated memory is still 3.8 GB. Free memory was 1.8 GB in the beginning and 1.8 GB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] * 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: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant [2020-11-30 01:31:45,883 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 01:31:45,883 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 01:31:45,883 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 01:31:45,883 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 01:31:45,883 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 01:31:45,884 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 01:31:45,884 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 01:31:45,889 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 01:31:45,889 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 01:31:45,889 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 01:31:45,889 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 01:31:45,889 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 01:31:45,889 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 01:31:45,890 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] Derived loop invariant: (((((((((((((((((a21 == 10 && a12 + 397559 <= 0) && a24 == 1) || (((a12 <= 11 && a24 == 1) && 9 <= a15) && 10 <= a21)) || (((((7 <= a21 && 0 < a12 + 43) && a12 <= 11) && a24 == 1) && a15 <= 8) && a21 <= 9)) || (((9 <= a21 && a15 <= 7) && a24 <= 1) && a21 <= 9)) || (((a21 == 10 && a15 == 8) && a12 + 43 <= 0) && a24 == 1)) || (((a24 <= 1 && 80 < a12) && a15 <= 8) && 10 <= a21)) || ((((0 < a12 + 43 && a12 <= 11) && a15 == 8) && a24 == 1) && 10 <= a21)) || ((((9 <= a21 && a24 == 1) && a15 <= 8) && a21 <= 9) && a12 <= 76)) || (((8 <= a21 && a24 == 1) && a21 <= 8) && a12 <= 76)) || (((7 <= a21 && a15 <= 7) && a24 <= 1) && a21 <= 8)) || ((((a15 <= 7 && 0 < a12 + 43) && a24 <= 1) && a12 <= 11) && a21 <= 8)) || (((80 < a12 && a24 == 1) && 9 <= a15) && a12 <= 599999)) || (((a12 + 49 <= 0 && a24 == 1) && a15 <= 8) && a21 <= 8)) || (((a24 <= 1 && 80 < a12) && a15 <= 8) && a21 <= 6)) || (a24 <= 1 && a15 <= 6)) || (((8 <= a21 && 80 < a12) && a24 == 1) && (\exists aux_div_v_~a12~0_439_31 : int, aux_div_aux_mod_v_~a12~0_439_31_31 : int :: (((5 * aux_div_v_~a12~0_439_31 + 5 * aux_div_aux_mod_v_~a12~0_439_31_31 <= 366413 && 0 <= 5 * aux_div_aux_mod_v_~a12~0_439_31_31) && 5 * aux_div_aux_mod_v_~a12~0_439_31_31 < 5) && a12 <= aux_div_v_~a12~0_439_31) && 366344 < 5 * aux_div_v_~a12~0_439_31 + 5 * aux_div_aux_mod_v_~a12~0_439_31_31))) || ((a12 <= 11 && a21 <= 6) && a15 <= 6) - InvariantResult [Line: 30]: Loop Invariant [2020-11-30 01:31:45,896 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 01:31:45,896 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 01:31:45,896 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 01:31:45,897 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 01:31:45,898 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 01:31:45,898 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 01:31:45,899 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 01:31:45,901 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 01:31:45,902 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 01:31:45,903 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 01:31:45,903 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] [2020-11-30 01:31:45,903 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 01:31:45,903 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_~a12~0_439_31,QUANTIFIED] [2020-11-30 01:31:45,903 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_v_~a12~0_439_31_31,QUANTIFIED] Derived loop invariant: (((((((((((((((((a21 == 10 && a12 + 397559 <= 0) && a24 == 1) || (((a12 <= 11 && a24 == 1) && 9 <= a15) && 10 <= a21)) || (((((7 <= a21 && 0 < a12 + 43) && a12 <= 11) && a24 == 1) && a15 <= 8) && a21 <= 9)) || (((9 <= a21 && a15 <= 7) && a24 <= 1) && a21 <= 9)) || (((a21 == 10 && a15 == 8) && a12 + 43 <= 0) && a24 == 1)) || (((a24 <= 1 && 80 < a12) && a15 <= 8) && 10 <= a21)) || ((((0 < a12 + 43 && a12 <= 11) && a15 == 8) && a24 == 1) && 10 <= a21)) || ((((9 <= a21 && a24 == 1) && a15 <= 8) && a21 <= 9) && a12 <= 76)) || (((8 <= a21 && a24 == 1) && a21 <= 8) && a12 <= 76)) || (((7 <= a21 && a15 <= 7) && a24 <= 1) && a21 <= 8)) || ((((a15 <= 7 && 0 < a12 + 43) && a24 <= 1) && a12 <= 11) && a21 <= 8)) || (((80 < a12 && a24 == 1) && 9 <= a15) && a12 <= 599999)) || (((a12 + 49 <= 0 && a24 == 1) && a15 <= 8) && a21 <= 8)) || (((a24 <= 1 && 80 < a12) && a15 <= 8) && a21 <= 6)) || (a24 <= 1 && a15 <= 6)) || (((8 <= a21 && 80 < a12) && a24 == 1) && (\exists aux_div_v_~a12~0_439_31 : int, aux_div_aux_mod_v_~a12~0_439_31_31 : int :: (((5 * aux_div_v_~a12~0_439_31 + 5 * aux_div_aux_mod_v_~a12~0_439_31_31 <= 366413 && 0 <= 5 * aux_div_aux_mod_v_~a12~0_439_31_31) && 5 * aux_div_aux_mod_v_~a12~0_439_31_31 < 5) && a12 <= aux_div_v_~a12~0_439_31) && 366344 < 5 * aux_div_v_~a12~0_439_31 + 5 * aux_div_aux_mod_v_~a12~0_439_31_31))) || ((a12 <= 11 && a21 <= 6) && a15 <= 6) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 246 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 78.0s, OverallIterations: 27, TraceHistogramMax: 17, AutomataDifference: 29.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3005 SDtfs, 3030 SDslu, 179 SDs, 0 SdLazy, 14910 SolverSat, 1449 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 20.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7550 GetRequests, 7478 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5166occurred in iteration=19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 27 MinimizatonAttempts, 4326 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 73 NumberOfFragments, 535 HoareAnnotationTreeSize, 3 FomulaSimplifications, 6316 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 3 FomulaSimplificationsInter, 2536 FormulaSimplificationTreeSizeReductionInter, 2.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.1s SsaConstructionTime, 3.7s SatisfiabilityAnalysisTime, 17.7s InterpolantComputationTime, 29330 NumberOfCodeBlocks, 29330 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 29293 ConstructedInterpolants, 257 QuantifiedInterpolants, 84838116 SizeOfPredicates, 3 NumberOfNonLiveVariables, 9503 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 37 InterpolantComputations, 25 PerfectInterpolantSequences, 101052/103755 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...