./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label09.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_314d0f4e-7176-46a5-a7c0-39e308ed2bee/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_314d0f4e-7176-46a5-a7c0-39e308ed2bee/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_314d0f4e-7176-46a5-a7c0-39e308ed2bee/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_314d0f4e-7176-46a5-a7c0-39e308ed2bee/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label09.c -s /tmp/vcloud-vcloud-master/worker/run_dir_314d0f4e-7176-46a5-a7c0-39e308ed2bee/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_314d0f4e-7176-46a5-a7c0-39e308ed2bee/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 cdb3507876e494a6d2ec0c64a985202330adf152 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 21:14:15,419 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 21:14:15,422 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 21:14:15,487 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 21:14:15,514 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 21:14:15,516 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 21:14:15,518 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 21:14:15,521 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 21:14:15,524 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 21:14:15,526 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 21:14:15,527 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 21:14:15,529 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 21:14:15,530 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 21:14:15,531 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 21:14:15,533 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 21:14:15,535 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 21:14:15,536 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 21:14:15,537 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 21:14:15,541 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 21:14:15,544 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 21:14:15,546 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 21:14:15,548 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 21:14:15,550 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 21:14:15,552 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 21:14:15,556 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 21:14:15,557 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 21:14:15,557 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 21:14:15,561 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 21:14:15,562 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 21:14:15,563 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 21:14:15,564 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 21:14:15,565 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 21:14:15,567 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 21:14:15,569 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 21:14:15,571 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 21:14:15,571 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 21:14:15,572 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 21:14:15,573 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 21:14:15,573 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 21:14:15,574 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 21:14:15,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 21:14:15,576 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_314d0f4e-7176-46a5-a7c0-39e308ed2bee/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 21:14:15,611 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 21:14:15,624 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 21:14:15,625 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 21:14:15,626 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 21:14:15,626 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 21:14:15,626 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 21:14:15,626 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 21:14:15,627 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 21:14:15,627 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 21:14:15,627 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 21:14:15,627 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 21:14:15,627 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 21:14:15,628 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 21:14:15,628 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 21:14:15,628 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 21:14:15,628 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 21:14:15,629 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 21:14:15,629 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 21:14:15,629 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 21:14:15,629 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 21:14:15,629 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 21:14:15,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 21:14:15,630 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 21:14:15,630 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 21:14:15,630 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 21:14:15,631 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 21:14:15,631 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 21:14:15,631 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 21:14:15,631 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 21:14:15,631 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_314d0f4e-7176-46a5-a7c0-39e308ed2bee/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_314d0f4e-7176-46a5-a7c0-39e308ed2bee/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cdb3507876e494a6d2ec0c64a985202330adf152 [2020-11-29 21:14:15,938 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 21:14:15,975 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 21:14:15,981 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 21:14:15,982 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 21:14:15,985 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 21:14:15,987 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_314d0f4e-7176-46a5-a7c0-39e308ed2bee/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem10_label09.c [2020-11-29 21:14:16,107 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_314d0f4e-7176-46a5-a7c0-39e308ed2bee/bin/uautomizer/data/47d93d6c6/20973a8d810e4be39202308458818e91/FLAGf56da3a12 [2020-11-29 21:14:16,848 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 21:14:16,849 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_314d0f4e-7176-46a5-a7c0-39e308ed2bee/sv-benchmarks/c/eca-rers2012/Problem10_label09.c [2020-11-29 21:14:16,870 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_314d0f4e-7176-46a5-a7c0-39e308ed2bee/bin/uautomizer/data/47d93d6c6/20973a8d810e4be39202308458818e91/FLAGf56da3a12 [2020-11-29 21:14:16,982 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_314d0f4e-7176-46a5-a7c0-39e308ed2bee/bin/uautomizer/data/47d93d6c6/20973a8d810e4be39202308458818e91 [2020-11-29 21:14:16,985 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 21:14:16,987 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 21:14:16,989 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 21:14:16,989 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 21:14:16,993 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 21:14:16,994 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:14:16" (1/1) ... [2020-11-29 21:14:16,997 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cd19348 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:14:16, skipping insertion in model container [2020-11-29 21:14:16,997 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:14:16" (1/1) ... [2020-11-29 21:14:17,010 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 21:14:17,065 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 21:14:17,529 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:14:17,541 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 21:14:17,704 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:14:17,731 INFO L208 MainTranslator]: Completed translation [2020-11-29 21:14:17,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:14:17 WrapperNode [2020-11-29 21:14:17,733 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 21:14:17,735 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 21:14:17,735 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 21:14:17,735 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 21:14:17,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:14:17" (1/1) ... [2020-11-29 21:14:17,792 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:14:17" (1/1) ... [2020-11-29 21:14:17,929 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 21:14:17,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 21:14:17,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 21:14:17,931 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 21:14:17,942 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:14:17" (1/1) ... [2020-11-29 21:14:17,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:14:17" (1/1) ... [2020-11-29 21:14:17,953 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:14:17" (1/1) ... [2020-11-29 21:14:17,954 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:14:17" (1/1) ... [2020-11-29 21:14:17,990 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:14:17" (1/1) ... [2020-11-29 21:14:18,002 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:14:17" (1/1) ... [2020-11-29 21:14:18,016 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:14:17" (1/1) ... [2020-11-29 21:14:18,035 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 21:14:18,036 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 21:14:18,037 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 21:14:18,037 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 21:14:18,049 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:14:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_314d0f4e-7176-46a5-a7c0-39e308ed2bee/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 [2020-11-29 21:14:18,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 21:14:18,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 21:14:18,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 21:14:18,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 21:14:20,063 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 21:14:20,066 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-29 21:14:20,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:14:20 BoogieIcfgContainer [2020-11-29 21:14:20,071 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 21:14:20,073 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 21:14:20,074 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 21:14:20,079 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 21:14:20,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 09:14:16" (1/3) ... [2020-11-29 21:14:20,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41996807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:14:20, skipping insertion in model container [2020-11-29 21:14:20,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:14:17" (2/3) ... [2020-11-29 21:14:20,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41996807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:14:20, skipping insertion in model container [2020-11-29 21:14:20,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:14:20" (3/3) ... [2020-11-29 21:14:20,083 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label09.c [2020-11-29 21:14:20,096 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 21:14:20,102 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 21:14:20,116 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 21:14:20,168 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 21:14:20,169 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 21:14:20,170 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 21:14:20,170 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 21:14:20,170 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 21:14:20,170 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 21:14:20,171 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 21:14:20,171 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 21:14:20,201 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-11-29 21:14:20,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-11-29 21:14:20,216 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:14:20,216 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:14:20,217 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:14:20,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:14:20,223 INFO L82 PathProgramCache]: Analyzing trace with hash -2158734, now seen corresponding path program 1 times [2020-11-29 21:14:20,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:14:20,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559480539] [2020-11-29 21:14:20,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:14:20,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:14:20,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:14:20,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559480539] [2020-11-29 21:14:20,672 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:14:20,672 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 21:14:20,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214655409] [2020-11-29 21:14:20,678 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 21:14:20,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:14:20,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:14:20,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 21:14:20,696 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-11-29 21:14:22,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:14:22,123 INFO L93 Difference]: Finished difference Result 568 states and 982 transitions. [2020-11-29 21:14:22,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:14:22,125 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2020-11-29 21:14:22,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:14:22,149 INFO L225 Difference]: With dead ends: 568 [2020-11-29 21:14:22,164 INFO L226 Difference]: Without dead ends: 282 [2020-11-29 21:14:22,169 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 [2020-11-29 21:14:22,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-11-29 21:14:22,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2020-11-29 21:14:22,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-11-29 21:14:22,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 412 transitions. [2020-11-29 21:14:22,254 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 412 transitions. Word has length 56 [2020-11-29 21:14:22,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:14:22,256 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 412 transitions. [2020-11-29 21:14:22,256 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 21:14:22,257 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 412 transitions. [2020-11-29 21:14:22,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-11-29 21:14:22,271 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:14:22,272 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:14:22,272 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 21:14:22,272 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:14:22,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:14:22,273 INFO L82 PathProgramCache]: Analyzing trace with hash -770355852, now seen corresponding path program 1 times [2020-11-29 21:14:22,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:14:22,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261104527] [2020-11-29 21:14:22,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:14:22,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:14:22,562 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:14:22,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261104527] [2020-11-29 21:14:22,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:14:22,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 21:14:22,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156660978] [2020-11-29 21:14:22,568 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 21:14:22,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:14:22,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:14:22,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 21:14:22,572 INFO L87 Difference]: Start difference. First operand 282 states and 412 transitions. Second operand 3 states. [2020-11-29 21:14:23,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:14:23,617 INFO L93 Difference]: Finished difference Result 840 states and 1231 transitions. [2020-11-29 21:14:23,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:14:23,618 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2020-11-29 21:14:23,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:14:23,628 INFO L225 Difference]: With dead ends: 840 [2020-11-29 21:14:23,628 INFO L226 Difference]: Without dead ends: 560 [2020-11-29 21:14:23,631 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 [2020-11-29 21:14:23,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2020-11-29 21:14:23,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2020-11-29 21:14:23,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-11-29 21:14:23,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 730 transitions. [2020-11-29 21:14:23,703 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 730 transitions. Word has length 126 [2020-11-29 21:14:23,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:14:23,705 INFO L481 AbstractCegarLoop]: Abstraction has 560 states and 730 transitions. [2020-11-29 21:14:23,705 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 21:14:23,706 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 730 transitions. [2020-11-29 21:14:23,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-11-29 21:14:23,711 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:14:23,711 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:14:23,712 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 21:14:23,713 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:14:23,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:14:23,714 INFO L82 PathProgramCache]: Analyzing trace with hash 939377742, now seen corresponding path program 1 times [2020-11-29 21:14:23,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:14:23,716 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234670385] [2020-11-29 21:14:23,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:14:23,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:14:24,050 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 35 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:14:24,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234670385] [2020-11-29 21:14:24,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [454196016] [2020-11-29 21:14:24,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_314d0f4e-7176-46a5-a7c0-39e308ed2bee/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 [2020-11-29 21:14:24,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:14:24,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 21:14:24,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:14:24,383 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:14:24,384 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 21:14:24,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-11-29 21:14:24,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998617511] [2020-11-29 21:14:24,389 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 21:14:24,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:14:24,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:14:24,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-29 21:14:24,392 INFO L87 Difference]: Start difference. First operand 560 states and 730 transitions. Second operand 3 states. [2020-11-29 21:14:25,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:14:25,349 INFO L93 Difference]: Finished difference Result 1396 states and 1867 transitions. [2020-11-29 21:14:25,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:14:25,350 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2020-11-29 21:14:25,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:14:25,358 INFO L225 Difference]: With dead ends: 1396 [2020-11-29 21:14:25,358 INFO L226 Difference]: Without dead ends: 838 [2020-11-29 21:14:25,359 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-29 21:14:25,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2020-11-29 21:14:25,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2020-11-29 21:14:25,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 838 states. [2020-11-29 21:14:25,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1083 transitions. [2020-11-29 21:14:25,390 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1083 transitions. Word has length 131 [2020-11-29 21:14:25,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:14:25,391 INFO L481 AbstractCegarLoop]: Abstraction has 838 states and 1083 transitions. [2020-11-29 21:14:25,391 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 21:14:25,391 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1083 transitions. [2020-11-29 21:14:25,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-11-29 21:14:25,394 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:14:25,394 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:14:25,616 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-11-29 21:14:25,616 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:14:25,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:14:25,617 INFO L82 PathProgramCache]: Analyzing trace with hash 1566187046, now seen corresponding path program 1 times [2020-11-29 21:14:25,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:14:25,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077900738] [2020-11-29 21:14:25,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:14:25,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:14:25,778 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:14:25,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077900738] [2020-11-29 21:14:25,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:14:25,780 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 21:14:25,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514419325] [2020-11-29 21:14:25,781 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 21:14:25,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:14:25,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:14:25,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 21:14:25,783 INFO L87 Difference]: Start difference. First operand 838 states and 1083 transitions. Second operand 3 states. [2020-11-29 21:14:26,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:14:26,648 INFO L93 Difference]: Finished difference Result 2230 states and 2835 transitions. [2020-11-29 21:14:26,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:14:26,649 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2020-11-29 21:14:26,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:14:26,660 INFO L225 Difference]: With dead ends: 2230 [2020-11-29 21:14:26,660 INFO L226 Difference]: Without dead ends: 1394 [2020-11-29 21:14:26,662 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 [2020-11-29 21:14:26,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2020-11-29 21:14:26,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1255. [2020-11-29 21:14:26,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2020-11-29 21:14:26,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1505 transitions. [2020-11-29 21:14:26,702 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1505 transitions. Word has length 147 [2020-11-29 21:14:26,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:14:26,702 INFO L481 AbstractCegarLoop]: Abstraction has 1255 states and 1505 transitions. [2020-11-29 21:14:26,702 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 21:14:26,702 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1505 transitions. [2020-11-29 21:14:26,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-11-29 21:14:26,706 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:14:26,706 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:14:26,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 21:14:26,707 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:14:26,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:14:26,709 INFO L82 PathProgramCache]: Analyzing trace with hash 1233778909, now seen corresponding path program 1 times [2020-11-29 21:14:26,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:14:26,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253696377] [2020-11-29 21:14:26,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:14:26,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:14:26,986 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:14:26,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253696377] [2020-11-29 21:14:26,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:14:26,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 21:14:26,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270516112] [2020-11-29 21:14:26,988 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 21:14:26,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:14:26,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:14:26,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 21:14:26,989 INFO L87 Difference]: Start difference. First operand 1255 states and 1505 transitions. Second operand 3 states. [2020-11-29 21:14:27,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:14:27,866 INFO L93 Difference]: Finished difference Result 2647 states and 3157 transitions. [2020-11-29 21:14:27,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:14:27,867 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-11-29 21:14:27,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:14:27,878 INFO L225 Difference]: With dead ends: 2647 [2020-11-29 21:14:27,878 INFO L226 Difference]: Without dead ends: 1394 [2020-11-29 21:14:27,881 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 [2020-11-29 21:14:27,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2020-11-29 21:14:27,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1394. [2020-11-29 21:14:27,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1394 states. [2020-11-29 21:14:27,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1649 transitions. [2020-11-29 21:14:27,916 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1649 transitions. Word has length 148 [2020-11-29 21:14:27,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:14:27,918 INFO L481 AbstractCegarLoop]: Abstraction has 1394 states and 1649 transitions. [2020-11-29 21:14:27,918 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 21:14:27,918 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1649 transitions. [2020-11-29 21:14:27,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-11-29 21:14:27,923 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:14:27,923 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:14:27,923 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 21:14:27,923 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:14:27,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:14:27,924 INFO L82 PathProgramCache]: Analyzing trace with hash 1549876009, now seen corresponding path program 1 times [2020-11-29 21:14:27,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:14:27,925 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120608428] [2020-11-29 21:14:27,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:14:27,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:14:28,116 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-11-29 21:14:28,117 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120608428] [2020-11-29 21:14:28,118 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:14:28,118 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 21:14:28,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873845812] [2020-11-29 21:14:28,119 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 21:14:28,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:14:28,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:14:28,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 21:14:28,120 INFO L87 Difference]: Start difference. First operand 1394 states and 1649 transitions. Second operand 3 states. [2020-11-29 21:14:29,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:14:29,013 INFO L93 Difference]: Finished difference Result 2925 states and 3521 transitions. [2020-11-29 21:14:29,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:14:29,015 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2020-11-29 21:14:29,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:14:29,031 INFO L225 Difference]: With dead ends: 2925 [2020-11-29 21:14:29,031 INFO L226 Difference]: Without dead ends: 1672 [2020-11-29 21:14:29,033 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 [2020-11-29 21:14:29,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1672 states. [2020-11-29 21:14:29,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1672 to 1672. [2020-11-29 21:14:29,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1672 states. [2020-11-29 21:14:29,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1672 states to 1672 states and 1952 transitions. [2020-11-29 21:14:29,077 INFO L78 Accepts]: Start accepts. Automaton has 1672 states and 1952 transitions. Word has length 214 [2020-11-29 21:14:29,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:14:29,078 INFO L481 AbstractCegarLoop]: Abstraction has 1672 states and 1952 transitions. [2020-11-29 21:14:29,078 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 21:14:29,079 INFO L276 IsEmpty]: Start isEmpty. Operand 1672 states and 1952 transitions. [2020-11-29 21:14:29,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-11-29 21:14:29,084 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:14:29,084 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:14:29,095 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 21:14:29,096 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:14:29,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:14:29,102 INFO L82 PathProgramCache]: Analyzing trace with hash 829823637, now seen corresponding path program 1 times [2020-11-29 21:14:29,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:14:29,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566608819] [2020-11-29 21:14:29,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:14:29,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:14:29,429 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 88 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-11-29 21:14:29,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566608819] [2020-11-29 21:14:29,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [153973502] [2020-11-29 21:14:29,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_314d0f4e-7176-46a5-a7c0-39e308ed2bee/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 [2020-11-29 21:14:29,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:14:29,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 21:14:29,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:14:29,700 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2020-11-29 21:14:29,700 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 21:14:29,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2020-11-29 21:14:29,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806561179] [2020-11-29 21:14:29,701 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 21:14:29,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:14:29,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:14:29,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 21:14:29,703 INFO L87 Difference]: Start difference. First operand 1672 states and 1952 transitions. Second operand 3 states. [2020-11-29 21:14:30,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:14:30,534 INFO L93 Difference]: Finished difference Result 2508 states and 2933 transitions. [2020-11-29 21:14:30,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:14:30,534 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 215 [2020-11-29 21:14:30,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:14:30,551 INFO L225 Difference]: With dead ends: 2508 [2020-11-29 21:14:30,551 INFO L226 Difference]: Without dead ends: 2506 [2020-11-29 21:14:30,556 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 21:14:30,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2506 states. [2020-11-29 21:14:30,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2506 to 1811. [2020-11-29 21:14:30,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1811 states. [2020-11-29 21:14:30,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1811 states to 1811 states and 2141 transitions. [2020-11-29 21:14:30,618 INFO L78 Accepts]: Start accepts. Automaton has 1811 states and 2141 transitions. Word has length 215 [2020-11-29 21:14:30,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:14:30,619 INFO L481 AbstractCegarLoop]: Abstraction has 1811 states and 2141 transitions. [2020-11-29 21:14:30,619 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 21:14:30,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1811 states and 2141 transitions. [2020-11-29 21:14:30,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-11-29 21:14:30,625 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:14:30,625 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-29 21:14:30,844 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 21:14:30,844 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:14:30,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:14:30,845 INFO L82 PathProgramCache]: Analyzing trace with hash 84723460, now seen corresponding path program 1 times [2020-11-29 21:14:30,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:14:30,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587149425] [2020-11-29 21:14:30,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:14:30,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:14:31,007 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:14:31,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587149425] [2020-11-29 21:14:31,007 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:14:31,007 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 21:14:31,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007709474] [2020-11-29 21:14:31,008 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 21:14:31,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:14:31,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:14:31,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 21:14:31,009 INFO L87 Difference]: Start difference. First operand 1811 states and 2141 transitions. Second operand 3 states. [2020-11-29 21:14:31,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:14:31,859 INFO L93 Difference]: Finished difference Result 3898 states and 4694 transitions. [2020-11-29 21:14:31,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:14:31,860 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 216 [2020-11-29 21:14:31,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:14:31,874 INFO L225 Difference]: With dead ends: 3898 [2020-11-29 21:14:31,874 INFO L226 Difference]: Without dead ends: 2228 [2020-11-29 21:14:31,882 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 [2020-11-29 21:14:31,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2228 states. [2020-11-29 21:14:31,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2228 to 2089. [2020-11-29 21:14:31,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2089 states. [2020-11-29 21:14:31,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2089 states to 2089 states and 2440 transitions. [2020-11-29 21:14:31,934 INFO L78 Accepts]: Start accepts. Automaton has 2089 states and 2440 transitions. Word has length 216 [2020-11-29 21:14:31,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:14:31,934 INFO L481 AbstractCegarLoop]: Abstraction has 2089 states and 2440 transitions. [2020-11-29 21:14:31,934 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 21:14:31,935 INFO L276 IsEmpty]: Start isEmpty. Operand 2089 states and 2440 transitions. [2020-11-29 21:14:31,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2020-11-29 21:14:31,940 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:14:31,941 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-11-29 21:14:31,941 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-29 21:14:31,941 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:14:31,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:14:31,942 INFO L82 PathProgramCache]: Analyzing trace with hash -1314719622, now seen corresponding path program 1 times [2020-11-29 21:14:31,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:14:31,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067404298] [2020-11-29 21:14:31,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:14:31,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:14:32,359 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 297 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-11-29 21:14:32,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067404298] [2020-11-29 21:14:32,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:14:32,361 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-29 21:14:32,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264504488] [2020-11-29 21:14:32,362 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-29 21:14:32,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:14:32,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 21:14:32,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-11-29 21:14:32,363 INFO L87 Difference]: Start difference. First operand 2089 states and 2440 transitions. Second operand 7 states. [2020-11-29 21:14:33,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:14:33,370 INFO L93 Difference]: Finished difference Result 4092 states and 4789 transitions. [2020-11-29 21:14:33,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 21:14:33,371 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 268 [2020-11-29 21:14:33,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:14:33,384 INFO L225 Difference]: With dead ends: 4092 [2020-11-29 21:14:33,384 INFO L226 Difference]: Without dead ends: 2089 [2020-11-29 21:14:33,388 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-11-29 21:14:33,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2020-11-29 21:14:33,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 2089. [2020-11-29 21:14:33,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2089 states. [2020-11-29 21:14:33,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2089 states to 2089 states and 2429 transitions. [2020-11-29 21:14:33,447 INFO L78 Accepts]: Start accepts. Automaton has 2089 states and 2429 transitions. Word has length 268 [2020-11-29 21:14:33,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:14:33,447 INFO L481 AbstractCegarLoop]: Abstraction has 2089 states and 2429 transitions. [2020-11-29 21:14:33,447 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-29 21:14:33,448 INFO L276 IsEmpty]: Start isEmpty. Operand 2089 states and 2429 transitions. [2020-11-29 21:14:33,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-11-29 21:14:33,455 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:14:33,455 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:14:33,456 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-29 21:14:33,456 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:14:33,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:14:33,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1123266284, now seen corresponding path program 1 times [2020-11-29 21:14:33,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:14:33,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828071223] [2020-11-29 21:14:33,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:14:33,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:14:33,767 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 364 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:14:33,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828071223] [2020-11-29 21:14:33,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:14:33,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 21:14:33,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967608064] [2020-11-29 21:14:33,768 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 21:14:33,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:14:33,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 21:14:33,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 21:14:33,769 INFO L87 Difference]: Start difference. First operand 2089 states and 2429 transitions. Second operand 4 states. [2020-11-29 21:14:34,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:14:34,786 INFO L93 Difference]: Finished difference Result 4315 states and 5054 transitions. [2020-11-29 21:14:34,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 21:14:34,787 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 304 [2020-11-29 21:14:34,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:14:34,797 INFO L225 Difference]: With dead ends: 4315 [2020-11-29 21:14:34,797 INFO L226 Difference]: Without dead ends: 2367 [2020-11-29 21:14:34,800 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 [2020-11-29 21:14:34,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2367 states. [2020-11-29 21:14:34,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2367 to 2367. [2020-11-29 21:14:34,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2367 states. [2020-11-29 21:14:34,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2367 states to 2367 states and 2696 transitions. [2020-11-29 21:14:34,853 INFO L78 Accepts]: Start accepts. Automaton has 2367 states and 2696 transitions. Word has length 304 [2020-11-29 21:14:34,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:14:34,854 INFO L481 AbstractCegarLoop]: Abstraction has 2367 states and 2696 transitions. [2020-11-29 21:14:34,854 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 21:14:34,854 INFO L276 IsEmpty]: Start isEmpty. Operand 2367 states and 2696 transitions. [2020-11-29 21:14:34,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2020-11-29 21:14:34,862 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:14:34,863 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:14:34,863 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-29 21:14:34,863 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:14:34,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:14:34,864 INFO L82 PathProgramCache]: Analyzing trace with hash -402555470, now seen corresponding path program 1 times [2020-11-29 21:14:34,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:14:34,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592564109] [2020-11-29 21:14:34,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:14:34,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:14:35,356 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 59 proven. 102 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2020-11-29 21:14:35,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592564109] [2020-11-29 21:14:35,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1791260842] [2020-11-29 21:14:35,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_314d0f4e-7176-46a5-a7c0-39e308ed2bee/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 [2020-11-29 21:14:35,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:14:35,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 21:14:35,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:14:35,617 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2020-11-29 21:14:35,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 21:14:35,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-11-29 21:14:35,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955156690] [2020-11-29 21:14:35,618 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 21:14:35,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:14:35,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:14:35,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-29 21:14:35,620 INFO L87 Difference]: Start difference. First operand 2367 states and 2696 transitions. Second operand 3 states. [2020-11-29 21:14:36,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:14:36,389 INFO L93 Difference]: Finished difference Result 3203 states and 3591 transitions. [2020-11-29 21:14:36,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:14:36,390 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 317 [2020-11-29 21:14:36,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:14:36,403 INFO L225 Difference]: With dead ends: 3203 [2020-11-29 21:14:36,404 INFO L226 Difference]: Without dead ends: 3201 [2020-11-29 21:14:36,404 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-29 21:14:36,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3201 states. [2020-11-29 21:14:36,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3201 to 2228. [2020-11-29 21:14:36,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2228 states. [2020-11-29 21:14:36,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2228 states to 2228 states and 2538 transitions. [2020-11-29 21:14:36,475 INFO L78 Accepts]: Start accepts. Automaton has 2228 states and 2538 transitions. Word has length 317 [2020-11-29 21:14:36,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:14:36,476 INFO L481 AbstractCegarLoop]: Abstraction has 2228 states and 2538 transitions. [2020-11-29 21:14:36,476 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 21:14:36,476 INFO L276 IsEmpty]: Start isEmpty. Operand 2228 states and 2538 transitions. [2020-11-29 21:14:36,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2020-11-29 21:14:36,488 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:14:36,488 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:14:36,716 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-11-29 21:14:36,716 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:14:36,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:14:36,717 INFO L82 PathProgramCache]: Analyzing trace with hash 2059727469, now seen corresponding path program 1 times [2020-11-29 21:14:36,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:14:36,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109290315] [2020-11-29 21:14:36,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:14:36,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:14:37,018 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2020-11-29 21:14:37,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109290315] [2020-11-29 21:14:37,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:14:37,019 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 21:14:37,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098291499] [2020-11-29 21:14:37,019 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 21:14:37,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:14:37,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:14:37,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 21:14:37,021 INFO L87 Difference]: Start difference. First operand 2228 states and 2538 transitions. Second operand 3 states. [2020-11-29 21:14:37,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:14:37,682 INFO L93 Difference]: Finished difference Result 2508 states and 2836 transitions. [2020-11-29 21:14:37,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:14:37,683 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 353 [2020-11-29 21:14:37,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:14:37,693 INFO L225 Difference]: With dead ends: 2508 [2020-11-29 21:14:37,693 INFO L226 Difference]: Without dead ends: 2506 [2020-11-29 21:14:37,694 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 [2020-11-29 21:14:37,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2506 states. [2020-11-29 21:14:37,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2506 to 2089. [2020-11-29 21:14:37,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2089 states. [2020-11-29 21:14:37,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2089 states to 2089 states and 2388 transitions. [2020-11-29 21:14:37,745 INFO L78 Accepts]: Start accepts. Automaton has 2089 states and 2388 transitions. Word has length 353 [2020-11-29 21:14:37,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:14:37,746 INFO L481 AbstractCegarLoop]: Abstraction has 2089 states and 2388 transitions. [2020-11-29 21:14:37,746 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 21:14:37,746 INFO L276 IsEmpty]: Start isEmpty. Operand 2089 states and 2388 transitions. [2020-11-29 21:14:37,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2020-11-29 21:14:37,752 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:14:37,753 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:14:37,753 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-29 21:14:37,753 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:14:37,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:14:37,754 INFO L82 PathProgramCache]: Analyzing trace with hash -905171627, now seen corresponding path program 1 times [2020-11-29 21:14:37,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:14:37,755 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4385890] [2020-11-29 21:14:37,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:14:37,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:14:38,404 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 158 proven. 3 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2020-11-29 21:14:38,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4385890] [2020-11-29 21:14:38,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684499497] [2020-11-29 21:14:38,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_314d0f4e-7176-46a5-a7c0-39e308ed2bee/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 [2020-11-29 21:14:38,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:14:38,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 21:14:38,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:14:38,716 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2020-11-29 21:14:38,716 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 21:14:38,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-11-29 21:14:38,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269920829] [2020-11-29 21:14:38,722 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 21:14:38,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:14:38,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:14:38,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-29 21:14:38,724 INFO L87 Difference]: Start difference. First operand 2089 states and 2388 transitions. Second operand 3 states. [2020-11-29 21:14:39,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:14:39,391 INFO L93 Difference]: Finished difference Result 4035 states and 4630 transitions. [2020-11-29 21:14:39,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:14:39,391 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 374 [2020-11-29 21:14:39,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:14:39,392 INFO L225 Difference]: With dead ends: 4035 [2020-11-29 21:14:39,392 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 21:14:39,395 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 373 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-29 21:14:39,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 21:14:39,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 21:14:39,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 21:14:39,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 21:14:39,396 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 374 [2020-11-29 21:14:39,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:14:39,396 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 21:14:39,396 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 21:14:39,396 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 21:14:39,397 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 21:14:39,597 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 21:14:39,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 21:14:39,907 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 24 [2020-11-29 21:14:40,088 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 24 [2020-11-29 21:14:40,093 INFO L274 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2020-11-29 21:14:40,093 INFO L274 CegarLoopResult]: For program point L564(lines 564 582) no Hoare annotation was computed. [2020-11-29 21:14:40,093 INFO L274 CegarLoopResult]: For program point L333(lines 333 582) no Hoare annotation was computed. [2020-11-29 21:14:40,093 INFO L274 CegarLoopResult]: For program point L367(lines 367 582) no Hoare annotation was computed. [2020-11-29 21:14:40,093 INFO L274 CegarLoopResult]: For program point L301(lines 301 582) no Hoare annotation was computed. [2020-11-29 21:14:40,093 INFO L274 CegarLoopResult]: For program point L235(lines 235 582) no Hoare annotation was computed. [2020-11-29 21:14:40,093 INFO L274 CegarLoopResult]: For program point L202-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,094 INFO L274 CegarLoopResult]: For program point L169-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,094 INFO L274 CegarLoopResult]: For program point L136-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,094 INFO L274 CegarLoopResult]: For program point L103-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,094 INFO L274 CegarLoopResult]: For program point L70-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,094 INFO L274 CegarLoopResult]: For program point L37-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,094 INFO L274 CegarLoopResult]: For program point L533(lines 533 582) no Hoare annotation was computed. [2020-11-29 21:14:40,094 INFO L274 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-11-29 21:14:40,094 INFO L274 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-11-29 21:14:40,094 INFO L274 CegarLoopResult]: For program point L137(line 137) no Hoare annotation was computed. [2020-11-29 21:14:40,094 INFO L274 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-11-29 21:14:40,094 INFO L274 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-11-29 21:14:40,095 INFO L274 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-11-29 21:14:40,095 INFO L274 CegarLoopResult]: For program point L567(lines 567 582) no Hoare annotation was computed. [2020-11-29 21:14:40,095 INFO L274 CegarLoopResult]: For program point L435(lines 435 582) no Hoare annotation was computed. [2020-11-29 21:14:40,095 INFO L274 CegarLoopResult]: For program point L336(lines 336 582) no Hoare annotation was computed. [2020-11-29 21:14:40,095 INFO L274 CegarLoopResult]: For program point L270(lines 270 582) no Hoare annotation was computed. [2020-11-29 21:14:40,095 INFO L274 CegarLoopResult]: For program point L403(lines 403 582) no Hoare annotation was computed. [2020-11-29 21:14:40,095 INFO L274 CegarLoopResult]: For program point L370(lines 370 582) no Hoare annotation was computed. [2020-11-29 21:14:40,095 INFO L274 CegarLoopResult]: For program point L205-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,095 INFO L274 CegarLoopResult]: For program point L172-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,095 INFO L274 CegarLoopResult]: For program point L139-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,095 INFO L274 CegarLoopResult]: For program point L106-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,096 INFO L274 CegarLoopResult]: For program point L73-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,096 INFO L274 CegarLoopResult]: For program point L40-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,098 INFO L274 CegarLoopResult]: For program point L536(lines 536 582) no Hoare annotation was computed. [2020-11-29 21:14:40,098 INFO L274 CegarLoopResult]: For program point L503(lines 503 582) no Hoare annotation was computed. [2020-11-29 21:14:40,098 INFO L274 CegarLoopResult]: For program point L470(lines 470 582) no Hoare annotation was computed. [2020-11-29 21:14:40,098 INFO L274 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2020-11-29 21:14:40,098 INFO L274 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2020-11-29 21:14:40,099 INFO L274 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-11-29 21:14:40,099 INFO L274 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-11-29 21:14:40,099 INFO L274 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-11-29 21:14:40,099 INFO L274 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-11-29 21:14:40,099 INFO L274 CegarLoopResult]: For program point L339(lines 339 582) no Hoare annotation was computed. [2020-11-29 21:14:40,099 INFO L274 CegarLoopResult]: For program point L306(lines 306 582) no Hoare annotation was computed. [2020-11-29 21:14:40,099 INFO L274 CegarLoopResult]: For program point L241(lines 241 582) no Hoare annotation was computed. [2020-11-29 21:14:40,099 INFO L274 CegarLoopResult]: For program point L208-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,099 INFO L274 CegarLoopResult]: For program point L175-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,099 INFO L274 CegarLoopResult]: For program point L142-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,100 INFO L274 CegarLoopResult]: For program point L109-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,100 INFO L274 CegarLoopResult]: For program point L76-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,100 INFO L274 CegarLoopResult]: For program point L43-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,100 INFO L274 CegarLoopResult]: For program point L539(lines 539 582) no Hoare annotation was computed. [2020-11-29 21:14:40,100 INFO L274 CegarLoopResult]: For program point L440(lines 440 582) no Hoare annotation was computed. [2020-11-29 21:14:40,100 INFO L274 CegarLoopResult]: For program point L275(lines 275 582) no Hoare annotation was computed. [2020-11-29 21:14:40,100 INFO L274 CegarLoopResult]: For program point L209(line 209) no Hoare annotation was computed. [2020-11-29 21:14:40,100 INFO L274 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2020-11-29 21:14:40,100 INFO L274 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-11-29 21:14:40,100 INFO L274 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-11-29 21:14:40,100 INFO L274 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2020-11-29 21:14:40,101 INFO L274 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-11-29 21:14:40,101 INFO L274 CegarLoopResult]: For program point L573(lines 573 582) no Hoare annotation was computed. [2020-11-29 21:14:40,101 INFO L274 CegarLoopResult]: For program point L408(lines 408 582) no Hoare annotation was computed. [2020-11-29 21:14:40,101 INFO L274 CegarLoopResult]: For program point L375(lines 375 582) no Hoare annotation was computed. [2020-11-29 21:14:40,101 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-29 21:14:40,101 INFO L274 CegarLoopResult]: For program point L475(lines 475 582) no Hoare annotation was computed. [2020-11-29 21:14:40,101 INFO L274 CegarLoopResult]: For program point L211-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,101 INFO L274 CegarLoopResult]: For program point L178-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,101 INFO L274 CegarLoopResult]: For program point L145-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,101 INFO L274 CegarLoopResult]: For program point L112-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,102 INFO L274 CegarLoopResult]: For program point L79-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,102 INFO L274 CegarLoopResult]: For program point L46-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,102 INFO L274 CegarLoopResult]: For program point L509(lines 509 582) no Hoare annotation was computed. [2020-11-29 21:14:40,102 INFO L274 CegarLoopResult]: For program point L311(lines 311 582) no Hoare annotation was computed. [2020-11-29 21:14:40,102 INFO L274 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-11-29 21:14:40,102 INFO L274 CegarLoopResult]: For program point L179(line 179) no Hoare annotation was computed. [2020-11-29 21:14:40,102 INFO L274 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2020-11-29 21:14:40,102 INFO L274 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2020-11-29 21:14:40,102 INFO L274 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-11-29 21:14:40,102 INFO L274 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-11-29 21:14:40,102 INFO L274 CegarLoopResult]: For program point L345(lines 345 582) no Hoare annotation was computed. [2020-11-29 21:14:40,103 INFO L274 CegarLoopResult]: For program point L246(lines 246 582) no Hoare annotation was computed. [2020-11-29 21:14:40,103 INFO L274 CegarLoopResult]: For program point L544(lines 544 582) no Hoare annotation was computed. [2020-11-29 21:14:40,103 INFO L274 CegarLoopResult]: For program point L181-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,103 INFO L274 CegarLoopResult]: For program point L148-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,103 INFO L274 CegarLoopResult]: For program point L115-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,103 INFO L274 CegarLoopResult]: For program point L82-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,103 INFO L274 CegarLoopResult]: For program point L49-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,103 INFO L274 CegarLoopResult]: For program point L446(lines 446 582) no Hoare annotation was computed. [2020-11-29 21:14:40,103 INFO L274 CegarLoopResult]: For program point L413(lines 413 582) no Hoare annotation was computed. [2020-11-29 21:14:40,103 INFO L274 CegarLoopResult]: For program point L380(lines 380 582) no Hoare annotation was computed. [2020-11-29 21:14:40,103 INFO L274 CegarLoopResult]: For program point L281(lines 281 582) no Hoare annotation was computed. [2020-11-29 21:14:40,104 INFO L274 CegarLoopResult]: For program point L182(line 182) no Hoare annotation was computed. [2020-11-29 21:14:40,104 INFO L274 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2020-11-29 21:14:40,104 INFO L274 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-11-29 21:14:40,104 INFO L274 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-11-29 21:14:40,104 INFO L274 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-11-29 21:14:40,104 INFO L274 CegarLoopResult]: For program point L579(lines 579 582) no Hoare annotation was computed. [2020-11-29 21:14:40,104 INFO L274 CegarLoopResult]: For program point L249(lines 249 582) no Hoare annotation was computed. [2020-11-29 21:14:40,104 INFO L274 CegarLoopResult]: For program point L514(lines 514 582) no Hoare annotation was computed. [2020-11-29 21:14:40,104 INFO L274 CegarLoopResult]: For program point L481(lines 481 582) no Hoare annotation was computed. [2020-11-29 21:14:40,104 INFO L274 CegarLoopResult]: For program point L316(lines 316 582) no Hoare annotation was computed. [2020-11-29 21:14:40,105 INFO L274 CegarLoopResult]: For program point L184-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,105 INFO L274 CegarLoopResult]: For program point L151-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,105 INFO L274 CegarLoopResult]: For program point L118-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,105 INFO L274 CegarLoopResult]: For program point L85-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,105 INFO L274 CegarLoopResult]: For program point L52-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,105 INFO L274 CegarLoopResult]: For program point L350(lines 350 582) no Hoare annotation was computed. [2020-11-29 21:14:40,105 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 21:14:40,105 INFO L274 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-11-29 21:14:40,105 INFO L274 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-11-29 21:14:40,105 INFO L274 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2020-11-29 21:14:40,106 INFO L274 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-11-29 21:14:40,106 INFO L274 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-11-29 21:14:40,107 INFO L270 CegarLoopResult]: At program point L583(lines 30 584) the Hoare annotation is: (let ((.cse3 (<= ~a19~0 9)) (.cse1 (<= 7 ~a19~0)) (.cse0 (= 14 ~a4~0)) (.cse2 (= ~a12~0 0))) (or (and .cse0 (= ~a10~0 2) .cse1 .cse2 .cse3) (and (<= 3 ~a10~0) .cse0 .cse2 .cse3) (and (= ~a10~0 1) .cse0 .cse1 .cse2) (and .cse0 (= ~a10~0 0) .cse2))) [2020-11-29 21:14:40,107 INFO L274 CegarLoopResult]: For program point L550(lines 550 582) no Hoare annotation was computed. [2020-11-29 21:14:40,107 INFO L274 CegarLoopResult]: For program point L418(lines 418 582) no Hoare annotation was computed. [2020-11-29 21:14:40,108 INFO L274 CegarLoopResult]: For program point L385(lines 385 582) no Hoare annotation was computed. [2020-11-29 21:14:40,108 INFO L274 CegarLoopResult]: For program point L220(lines 220 582) no Hoare annotation was computed. [2020-11-29 21:14:40,108 INFO L274 CegarLoopResult]: For program point L187-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,108 INFO L274 CegarLoopResult]: For program point L154-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,108 INFO L274 CegarLoopResult]: For program point L121-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,108 INFO L274 CegarLoopResult]: For program point L88-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,109 INFO L274 CegarLoopResult]: For program point L55-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,109 INFO L274 CegarLoopResult]: For program point L452(lines 452 582) no Hoare annotation was computed. [2020-11-29 21:14:40,109 INFO L274 CegarLoopResult]: For program point L287(lines 287 582) no Hoare annotation was computed. [2020-11-29 21:14:40,109 INFO L274 CegarLoopResult]: For program point L254(lines 254 582) no Hoare annotation was computed. [2020-11-29 21:14:40,109 INFO L274 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2020-11-29 21:14:40,109 INFO L274 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-11-29 21:14:40,109 INFO L274 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-11-29 21:14:40,110 INFO L274 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-11-29 21:14:40,110 INFO L274 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2020-11-29 21:14:40,110 INFO L274 CegarLoopResult]: For program point L519(lines 519 582) no Hoare annotation was computed. [2020-11-29 21:14:40,110 INFO L274 CegarLoopResult]: For program point L486(lines 486 582) no Hoare annotation was computed. [2020-11-29 21:14:40,110 INFO L277 CegarLoopResult]: At program point L586(lines 586 602) the Hoare annotation is: true [2020-11-29 21:14:40,110 INFO L274 CegarLoopResult]: For program point L388(lines 388 582) no Hoare annotation was computed. [2020-11-29 21:14:40,110 INFO L274 CegarLoopResult]: For program point L355(lines 355 582) no Hoare annotation was computed. [2020-11-29 21:14:40,111 INFO L274 CegarLoopResult]: For program point L322(lines 322 582) no Hoare annotation was computed. [2020-11-29 21:14:40,111 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 21:14:40,111 INFO L274 CegarLoopResult]: For program point L190-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,111 INFO L274 CegarLoopResult]: For program point L157-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,111 INFO L274 CegarLoopResult]: For program point L124-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,111 INFO L274 CegarLoopResult]: For program point L91-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,111 INFO L274 CegarLoopResult]: For program point L58-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,112 INFO L274 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2020-11-29 21:14:40,112 INFO L274 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-11-29 21:14:40,112 INFO L274 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-11-29 21:14:40,112 INFO L274 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-11-29 21:14:40,112 INFO L274 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-11-29 21:14:40,112 INFO L274 CegarLoopResult]: For program point L555(lines 555 582) no Hoare annotation was computed. [2020-11-29 21:14:40,113 INFO L274 CegarLoopResult]: For program point L225(lines 225 582) no Hoare annotation was computed. [2020-11-29 21:14:40,113 INFO L274 CegarLoopResult]: For program point L424(lines 424 582) no Hoare annotation was computed. [2020-11-29 21:14:40,113 INFO L274 CegarLoopResult]: For program point L259(lines 259 582) no Hoare annotation was computed. [2020-11-29 21:14:40,113 INFO L274 CegarLoopResult]: For program point L193-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,113 INFO L274 CegarLoopResult]: For program point L160-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,113 INFO L274 CegarLoopResult]: For program point L127-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,113 INFO L274 CegarLoopResult]: For program point L94-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,113 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 21:14:40,114 INFO L274 CegarLoopResult]: For program point L61-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,114 INFO L274 CegarLoopResult]: For program point L524(lines 524 582) no Hoare annotation was computed. [2020-11-29 21:14:40,114 INFO L274 CegarLoopResult]: For program point L491(lines 491 582) no Hoare annotation was computed. [2020-11-29 21:14:40,114 INFO L274 CegarLoopResult]: For program point L458(lines 458 582) no Hoare annotation was computed. [2020-11-29 21:14:40,114 INFO L274 CegarLoopResult]: For program point L293(lines 293 582) no Hoare annotation was computed. [2020-11-29 21:14:40,114 INFO L274 CegarLoopResult]: For program point L194(line 194) no Hoare annotation was computed. [2020-11-29 21:14:40,115 INFO L274 CegarLoopResult]: For program point L161(line 161) no Hoare annotation was computed. [2020-11-29 21:14:40,115 INFO L274 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2020-11-29 21:14:40,115 INFO L274 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-11-29 21:14:40,115 INFO L274 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-11-29 21:14:40,115 INFO L274 CegarLoopResult]: For program point L558(lines 558 582) no Hoare annotation was computed. [2020-11-29 21:14:40,115 INFO L274 CegarLoopResult]: For program point L393(lines 393 582) no Hoare annotation was computed. [2020-11-29 21:14:40,115 INFO L274 CegarLoopResult]: For program point L327(lines 327 582) no Hoare annotation was computed. [2020-11-29 21:14:40,116 INFO L270 CegarLoopResult]: At program point L592-2(lines 592 601) the Hoare annotation is: (let ((.cse3 (<= ~a19~0 9)) (.cse1 (<= 7 ~a19~0)) (.cse0 (= 14 ~a4~0)) (.cse2 (= ~a12~0 0))) (or (and .cse0 (= ~a10~0 2) .cse1 .cse2 .cse3) (and (<= 3 ~a10~0) .cse0 .cse2 .cse3) (and (= ~a10~0 1) .cse0 .cse1 .cse2) (and .cse0 (= ~a10~0 0) .cse2))) [2020-11-29 21:14:40,116 INFO L274 CegarLoopResult]: For program point L361(lines 361 582) no Hoare annotation was computed. [2020-11-29 21:14:40,117 INFO L274 CegarLoopResult]: For program point L196-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,117 INFO L274 CegarLoopResult]: For program point L163-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,117 INFO L274 CegarLoopResult]: For program point L130-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,117 INFO L274 CegarLoopResult]: For program point L97-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,117 INFO L274 CegarLoopResult]: For program point L31(lines 31 33) no Hoare annotation was computed. [2020-11-29 21:14:40,117 INFO L274 CegarLoopResult]: For program point L64-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,117 INFO L274 CegarLoopResult]: For program point L31-2(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,118 INFO L274 CegarLoopResult]: For program point L527(lines 527 582) no Hoare annotation was computed. [2020-11-29 21:14:40,118 INFO L274 CegarLoopResult]: For program point L296(lines 296 582) no Hoare annotation was computed. [2020-11-29 21:14:40,118 INFO L274 CegarLoopResult]: For program point L230(lines 230 582) no Hoare annotation was computed. [2020-11-29 21:14:40,118 INFO L274 CegarLoopResult]: For program point L197(line 197) no Hoare annotation was computed. [2020-11-29 21:14:40,118 INFO L274 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-11-29 21:14:40,118 INFO L274 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2020-11-29 21:14:40,118 INFO L274 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-11-29 21:14:40,119 INFO L274 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-11-29 21:14:40,119 INFO L274 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-11-29 21:14:40,119 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 21:14:40,119 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-29 21:14:40,119 INFO L274 CegarLoopResult]: For program point L429(lines 429 582) no Hoare annotation was computed. [2020-11-29 21:14:40,119 INFO L274 CegarLoopResult]: For program point L330(lines 330 582) no Hoare annotation was computed. [2020-11-29 21:14:40,119 INFO L274 CegarLoopResult]: For program point L264(lines 264 582) no Hoare annotation was computed. [2020-11-29 21:14:40,120 INFO L274 CegarLoopResult]: For program point L364(lines 364 582) no Hoare annotation was computed. [2020-11-29 21:14:40,120 INFO L274 CegarLoopResult]: For program point L199-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,120 INFO L274 CegarLoopResult]: For program point L166-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,120 INFO L274 CegarLoopResult]: For program point L133-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,120 INFO L274 CegarLoopResult]: For program point L100-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,120 INFO L274 CegarLoopResult]: For program point L67-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,120 INFO L274 CegarLoopResult]: For program point L34-1(lines 30 584) no Hoare annotation was computed. [2020-11-29 21:14:40,121 INFO L274 CegarLoopResult]: For program point L497(lines 497 582) no Hoare annotation was computed. [2020-11-29 21:14:40,121 INFO L274 CegarLoopResult]: For program point L464(lines 464 582) no Hoare annotation was computed. [2020-11-29 21:14:40,121 INFO L274 CegarLoopResult]: For program point L398(lines 398 582) no Hoare annotation was computed. [2020-11-29 21:14:40,121 INFO L274 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-11-29 21:14:40,121 INFO L274 CegarLoopResult]: For program point L167(line 167) no Hoare annotation was computed. [2020-11-29 21:14:40,121 INFO L274 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-11-29 21:14:40,121 INFO L274 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-11-29 21:14:40,122 INFO L274 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-11-29 21:14:40,122 INFO L274 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-11-29 21:14:40,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 09:14:40 BoogieIcfgContainer [2020-11-29 21:14:40,156 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 21:14:40,156 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 21:14:40,156 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 21:14:40,157 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 21:14:40,157 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:14:20" (3/4) ... [2020-11-29 21:14:40,161 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 21:14:40,195 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-29 21:14:40,197 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 21:14:40,198 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 21:14:40,200 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 21:14:40,401 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_314d0f4e-7176-46a5-a7c0-39e308ed2bee/bin/uautomizer/witness.graphml [2020-11-29 21:14:40,401 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 21:14:40,402 INFO L168 Benchmark]: Toolchain (without parser) took 23415.00 ms. Allocated memory was 98.6 MB in the beginning and 461.4 MB in the end (delta: 362.8 MB). Free memory was 61.4 MB in the beginning and 214.7 MB in the end (delta: -153.3 MB). Peak memory consumption was 208.3 MB. Max. memory is 16.1 GB. [2020-11-29 21:14:40,403 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 98.6 MB. Free memory was 71.1 MB in the beginning and 71.1 MB in the end (delta: 25.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:14:40,404 INFO L168 Benchmark]: CACSL2BoogieTranslator took 745.00 ms. Allocated memory is still 98.6 MB. Free memory was 61.2 MB in the beginning and 57.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 21:14:40,404 INFO L168 Benchmark]: Boogie Procedure Inliner took 194.62 ms. Allocated memory is still 98.6 MB. Free memory was 57.1 MB in the beginning and 49.3 MB in the end (delta: 7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 21:14:40,404 INFO L168 Benchmark]: Boogie Preprocessor took 105.06 ms. Allocated memory is still 98.6 MB. Free memory was 49.3 MB in the beginning and 44.1 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 21:14:40,405 INFO L168 Benchmark]: RCFGBuilder took 2034.40 ms. Allocated memory was 98.6 MB in the beginning and 123.7 MB in the end (delta: 25.2 MB). Free memory was 44.1 MB in the beginning and 54.2 MB in the end (delta: -10.1 MB). Peak memory consumption was 33.5 MB. Max. memory is 16.1 GB. [2020-11-29 21:14:40,405 INFO L168 Benchmark]: TraceAbstraction took 20082.70 ms. Allocated memory was 123.7 MB in the beginning and 461.4 MB in the end (delta: 337.6 MB). Free memory was 54.2 MB in the beginning and 229.4 MB in the end (delta: -175.2 MB). Peak memory consumption was 162.3 MB. Max. memory is 16.1 GB. [2020-11-29 21:14:40,406 INFO L168 Benchmark]: Witness Printer took 245.03 ms. Allocated memory is still 461.4 MB. Free memory was 229.4 MB in the beginning and 214.7 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-29 21:14:40,408 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 98.6 MB. Free memory was 71.1 MB in the beginning and 71.1 MB in the end (delta: 25.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 745.00 ms. Allocated memory is still 98.6 MB. Free memory was 61.2 MB in the beginning and 57.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 194.62 ms. Allocated memory is still 98.6 MB. Free memory was 57.1 MB in the beginning and 49.3 MB in the end (delta: 7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 105.06 ms. Allocated memory is still 98.6 MB. Free memory was 49.3 MB in the beginning and 44.1 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2034.40 ms. Allocated memory was 98.6 MB in the beginning and 123.7 MB in the end (delta: 25.2 MB). Free memory was 44.1 MB in the beginning and 54.2 MB in the end (delta: -10.1 MB). Peak memory consumption was 33.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 20082.70 ms. Allocated memory was 123.7 MB in the beginning and 461.4 MB in the end (delta: 337.6 MB). Free memory was 54.2 MB in the beginning and 229.4 MB in the end (delta: -175.2 MB). Peak memory consumption was 162.3 MB. Max. memory is 16.1 GB. * Witness Printer took 245.03 ms. Allocated memory is still 461.4 MB. Free memory was 229.4 MB in the beginning and 214.7 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: ((((((14 == a4 && a10 == 2) && 7 <= a19) && a12 == 0) && a19 <= 9) || (((3 <= a10 && 14 == a4) && a12 == 0) && a19 <= 9)) || (((a10 == 1 && 14 == a4) && 7 <= a19) && a12 == 0)) || ((14 == a4 && a10 == 0) && a12 == 0) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((14 == a4 && a10 == 2) && 7 <= a19) && a12 == 0) && a19 <= 9) || (((3 <= a10 && 14 == a4) && a12 == 0) && a19 <= 9)) || (((a10 == 1 && 14 == a4) && 7 <= a19) && a12 == 0)) || ((14 == a4 && a10 == 0) && a12 == 0) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 19.4s, OverallIterations: 13, TraceHistogramMax: 4, AutomataDifference: 12.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1127 SDtfs, 1436 SDslu, 68 SDs, 0 SdLazy, 5208 SolverSat, 751 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1078 GetRequests, 1046 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2367occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 13 MinimizatonAttempts, 2363 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 37 NumberOfFragments, 107 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1314 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 516 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 3906 NumberOfCodeBlocks, 3906 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 3889 ConstructedInterpolants, 0 QuantifiedInterpolants, 3936269 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1535 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 17 InterpolantComputations, 13 PerfectInterpolantSequences, 3465/3676 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...