./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label54.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_bc2dfdaa-7559-4080-a29b-24e12f2240a0/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_bc2dfdaa-7559-4080-a29b-24e12f2240a0/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_bc2dfdaa-7559-4080-a29b-24e12f2240a0/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_bc2dfdaa-7559-4080-a29b-24e12f2240a0/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label54.c -s /tmp/vcloud-vcloud-master/worker/run_dir_bc2dfdaa-7559-4080-a29b-24e12f2240a0/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_bc2dfdaa-7559-4080-a29b-24e12f2240a0/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 82dff1713e271abdc8f24172a0abd315632e3f42 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 19:51:43,614 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:51:43,617 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:51:43,691 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:51:43,692 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:51:43,708 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:51:43,712 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:51:43,723 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:51:43,727 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:51:43,738 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:51:43,740 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:51:43,743 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:51:43,744 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:51:43,748 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:51:43,751 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:51:43,753 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:51:43,755 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:51:43,756 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:51:43,759 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:51:43,763 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:51:43,766 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:51:43,771 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:51:43,773 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:51:43,780 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:51:43,785 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:51:43,787 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:51:43,788 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:51:43,791 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:51:43,792 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:51:43,794 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:51:43,794 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:51:43,796 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:51:43,799 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:51:43,801 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:51:43,803 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:51:43,804 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:51:43,805 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:51:43,805 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:51:43,806 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:51:43,807 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:51:43,808 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:51:43,811 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_bc2dfdaa-7559-4080-a29b-24e12f2240a0/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 19:51:43,867 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:51:43,868 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:51:43,871 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:51:43,872 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:51:43,872 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:51:43,872 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:51:43,873 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:51:43,873 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:51:43,873 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:51:43,874 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:51:43,875 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 19:51:43,876 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:51:43,876 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 19:51:43,876 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:51:43,877 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:51:43,877 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:51:43,877 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 19:51:43,878 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:51:43,878 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:51:43,878 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:51:43,879 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 19:51:43,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:51:43,879 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:51:43,880 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:51:43,880 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 19:51:43,880 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:51:43,880 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 19:51:43,881 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 19:51:43,881 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:51:43,881 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_bc2dfdaa-7559-4080-a29b-24e12f2240a0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_bc2dfdaa-7559-4080-a29b-24e12f2240a0/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82dff1713e271abdc8f24172a0abd315632e3f42 [2020-11-29 19:51:44,299 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:51:44,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:51:44,366 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:51:44,368 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:51:44,372 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:51:44,374 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_bc2dfdaa-7559-4080-a29b-24e12f2240a0/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem01_label54.c [2020-11-29 19:51:44,475 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bc2dfdaa-7559-4080-a29b-24e12f2240a0/bin/uautomizer/data/1bbf1b513/6fd201db33694f6fabf7e06a011c80e0/FLAG1349a1d9e [2020-11-29 19:51:45,308 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:51:45,309 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_bc2dfdaa-7559-4080-a29b-24e12f2240a0/sv-benchmarks/c/eca-rers2012/Problem01_label54.c [2020-11-29 19:51:45,325 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bc2dfdaa-7559-4080-a29b-24e12f2240a0/bin/uautomizer/data/1bbf1b513/6fd201db33694f6fabf7e06a011c80e0/FLAG1349a1d9e [2020-11-29 19:51:45,493 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_bc2dfdaa-7559-4080-a29b-24e12f2240a0/bin/uautomizer/data/1bbf1b513/6fd201db33694f6fabf7e06a011c80e0 [2020-11-29 19:51:45,503 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:51:45,505 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:51:45,507 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:51:45,507 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:51:45,512 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:51:45,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:51:45" (1/1) ... [2020-11-29 19:51:45,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@356a6f37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:51:45, skipping insertion in model container [2020-11-29 19:51:45,517 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:51:45" (1/1) ... [2020-11-29 19:51:45,526 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:51:45,578 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:51:46,158 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:51:46,188 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:51:46,339 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:51:46,361 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:51:46,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:51:46 WrapperNode [2020-11-29 19:51:46,369 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:51:46,370 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:51:46,371 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:51:46,373 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:51:46,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:51:46" (1/1) ... [2020-11-29 19:51:46,413 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:51:46" (1/1) ... [2020-11-29 19:51:46,500 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:51:46,501 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:51:46,501 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:51:46,502 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:51:46,514 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:51:46" (1/1) ... [2020-11-29 19:51:46,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:51:46" (1/1) ... [2020-11-29 19:51:46,522 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:51:46" (1/1) ... [2020-11-29 19:51:46,523 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:51:46" (1/1) ... [2020-11-29 19:51:46,555 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:51:46" (1/1) ... [2020-11-29 19:51:46,568 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:51:46" (1/1) ... [2020-11-29 19:51:46,576 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:51:46" (1/1) ... [2020-11-29 19:51:46,586 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:51:46,587 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:51:46,588 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:51:46,588 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:51:46,592 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:51:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc2dfdaa-7559-4080-a29b-24e12f2240a0/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 19:51:46,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:51:46,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:51:46,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:51:46,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:51:48,457 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:51:48,458 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-29 19:51:48,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:51:48 BoogieIcfgContainer [2020-11-29 19:51:48,464 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:51:48,466 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 19:51:48,467 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 19:51:48,472 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 19:51:48,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:51:45" (1/3) ... [2020-11-29 19:51:48,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49b8ee2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:51:48, skipping insertion in model container [2020-11-29 19:51:48,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:51:46" (2/3) ... [2020-11-29 19:51:48,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49b8ee2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:51:48, skipping insertion in model container [2020-11-29 19:51:48,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:51:48" (3/3) ... [2020-11-29 19:51:48,477 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label54.c [2020-11-29 19:51:48,496 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 19:51:48,503 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 19:51:48,563 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 19:51:48,609 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 19:51:48,609 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 19:51:48,609 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 19:51:48,610 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:51:48,610 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:51:48,610 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 19:51:48,610 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:51:48,610 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 19:51:48,645 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states. [2020-11-29 19:51:48,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-11-29 19:51:48,665 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:51:48,666 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:51:48,666 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:51:48,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:51:48,673 INFO L82 PathProgramCache]: Analyzing trace with hash 1154180279, now seen corresponding path program 1 times [2020-11-29 19:51:48,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:51:48,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384254184] [2020-11-29 19:51:48,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:51:48,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:51:49,277 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 19:51:49,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384254184] [2020-11-29 19:51:49,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:51:49,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 19:51:49,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666939292] [2020-11-29 19:51:49,286 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:51:49,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:51:49,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:51:49,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:51:49,306 INFO L87 Difference]: Start difference. First operand 199 states. Second operand 3 states. [2020-11-29 19:51:50,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:51:50,707 INFO L93 Difference]: Finished difference Result 529 states and 916 transitions. [2020-11-29 19:51:50,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:51:50,710 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 122 [2020-11-29 19:51:50,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:51:50,755 INFO L225 Difference]: With dead ends: 529 [2020-11-29 19:51:50,755 INFO L226 Difference]: Without dead ends: 266 [2020-11-29 19:51:50,764 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 19:51:50,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-11-29 19:51:50,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-11-29 19:51:50,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-11-29 19:51:50,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 374 transitions. [2020-11-29 19:51:50,838 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 374 transitions. Word has length 122 [2020-11-29 19:51:50,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:51:50,839 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 374 transitions. [2020-11-29 19:51:50,840 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:51:50,840 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 374 transitions. [2020-11-29 19:51:50,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-11-29 19:51:50,845 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:51:50,845 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:51:50,846 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 19:51:50,846 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:51:50,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:51:50,847 INFO L82 PathProgramCache]: Analyzing trace with hash -652851471, now seen corresponding path program 1 times [2020-11-29 19:51:50,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:51:50,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587170266] [2020-11-29 19:51:50,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:51:50,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:51:51,161 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-29 19:51:51,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587170266] [2020-11-29 19:51:51,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:51:51,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 19:51:51,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776349104] [2020-11-29 19:51:51,164 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:51:51,165 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:51:51,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:51:51,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:51:51,170 INFO L87 Difference]: Start difference. First operand 266 states and 374 transitions. Second operand 3 states. [2020-11-29 19:51:52,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:51:52,012 INFO L93 Difference]: Finished difference Result 792 states and 1117 transitions. [2020-11-29 19:51:52,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:51:52,013 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2020-11-29 19:51:52,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:51:52,020 INFO L225 Difference]: With dead ends: 792 [2020-11-29 19:51:52,021 INFO L226 Difference]: Without dead ends: 528 [2020-11-29 19:51:52,024 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 19:51:52,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2020-11-29 19:51:52,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2020-11-29 19:51:52,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-11-29 19:51:52,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 708 transitions. [2020-11-29 19:51:52,077 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 708 transitions. Word has length 126 [2020-11-29 19:51:52,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:51:52,078 INFO L481 AbstractCegarLoop]: Abstraction has 528 states and 708 transitions. [2020-11-29 19:51:52,078 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:51:52,078 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 708 transitions. [2020-11-29 19:51:52,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-11-29 19:51:52,096 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:51:52,102 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:51:52,103 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 19:51:52,104 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:51:52,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:51:52,107 INFO L82 PathProgramCache]: Analyzing trace with hash 254894437, now seen corresponding path program 1 times [2020-11-29 19:51:52,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:51:52,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019663437] [2020-11-29 19:51:52,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:51:52,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:51:52,327 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:51:52,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019663437] [2020-11-29 19:51:52,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:51:52,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:51:52,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354589965] [2020-11-29 19:51:52,329 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 19:51:52,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:51:52,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 19:51:52,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:51:52,331 INFO L87 Difference]: Start difference. First operand 528 states and 708 transitions. Second operand 4 states. [2020-11-29 19:51:53,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:51:53,653 INFO L93 Difference]: Finished difference Result 1316 states and 1742 transitions. [2020-11-29 19:51:53,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 19:51:53,654 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 156 [2020-11-29 19:51:53,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:51:53,662 INFO L225 Difference]: With dead ends: 1316 [2020-11-29 19:51:53,662 INFO L226 Difference]: Without dead ends: 790 [2020-11-29 19:51:53,665 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:51:53,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2020-11-29 19:51:53,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 790. [2020-11-29 19:51:53,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2020-11-29 19:51:53,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1000 transitions. [2020-11-29 19:51:53,717 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1000 transitions. Word has length 156 [2020-11-29 19:51:53,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:51:53,718 INFO L481 AbstractCegarLoop]: Abstraction has 790 states and 1000 transitions. [2020-11-29 19:51:53,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 19:51:53,718 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1000 transitions. [2020-11-29 19:51:53,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-11-29 19:51:53,722 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:51:53,723 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:51:53,723 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 19:51:53,723 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:51:53,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:51:53,724 INFO L82 PathProgramCache]: Analyzing trace with hash 1959421359, now seen corresponding path program 1 times [2020-11-29 19:51:53,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:51:53,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618111004] [2020-11-29 19:51:53,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:51:53,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:51:53,817 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-11-29 19:51:53,818 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618111004] [2020-11-29 19:51:53,818 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:51:53,818 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 19:51:53,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275500919] [2020-11-29 19:51:53,819 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:51:53,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:51:53,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:51:53,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:51:53,822 INFO L87 Difference]: Start difference. First operand 790 states and 1000 transitions. Second operand 3 states. [2020-11-29 19:51:54,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:51:54,616 INFO L93 Difference]: Finished difference Result 1840 states and 2320 transitions. [2020-11-29 19:51:54,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:51:54,617 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2020-11-29 19:51:54,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:51:54,625 INFO L225 Difference]: With dead ends: 1840 [2020-11-29 19:51:54,625 INFO L226 Difference]: Without dead ends: 1052 [2020-11-29 19:51:54,627 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 19:51:54,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2020-11-29 19:51:54,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 790. [2020-11-29 19:51:54,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2020-11-29 19:51:54,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 988 transitions. [2020-11-29 19:51:54,662 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 988 transitions. Word has length 160 [2020-11-29 19:51:54,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:51:54,662 INFO L481 AbstractCegarLoop]: Abstraction has 790 states and 988 transitions. [2020-11-29 19:51:54,662 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:51:54,662 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 988 transitions. [2020-11-29 19:51:54,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-11-29 19:51:54,667 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:51:54,667 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:51:54,668 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 19:51:54,668 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:51:54,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:51:54,669 INFO L82 PathProgramCache]: Analyzing trace with hash -434910103, now seen corresponding path program 1 times [2020-11-29 19:51:54,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:51:54,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114843194] [2020-11-29 19:51:54,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:51:54,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:51:54,834 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-11-29 19:51:54,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114843194] [2020-11-29 19:51:54,835 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:51:54,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:51:54,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697401272] [2020-11-29 19:51:54,836 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 19:51:54,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:51:54,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 19:51:54,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:51:54,837 INFO L87 Difference]: Start difference. First operand 790 states and 988 transitions. Second operand 4 states. [2020-11-29 19:51:56,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:51:56,074 INFO L93 Difference]: Finished difference Result 2495 states and 3096 transitions. [2020-11-29 19:51:56,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 19:51:56,075 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 164 [2020-11-29 19:51:56,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:51:56,085 INFO L225 Difference]: With dead ends: 2495 [2020-11-29 19:51:56,085 INFO L226 Difference]: Without dead ends: 1445 [2020-11-29 19:51:56,087 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:51:56,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2020-11-29 19:51:56,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1445. [2020-11-29 19:51:56,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1445 states. [2020-11-29 19:51:56,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1659 transitions. [2020-11-29 19:51:56,152 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1659 transitions. Word has length 164 [2020-11-29 19:51:56,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:51:56,152 INFO L481 AbstractCegarLoop]: Abstraction has 1445 states and 1659 transitions. [2020-11-29 19:51:56,152 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 19:51:56,152 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1659 transitions. [2020-11-29 19:51:56,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-11-29 19:51:56,158 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:51:56,158 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:51:56,159 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 19:51:56,159 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:51:56,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:51:56,159 INFO L82 PathProgramCache]: Analyzing trace with hash -671141883, now seen corresponding path program 1 times [2020-11-29 19:51:56,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:51:56,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790231332] [2020-11-29 19:51:56,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:51:56,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:51:56,312 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2020-11-29 19:51:56,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790231332] [2020-11-29 19:51:56,314 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:51:56,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:51:56,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521333625] [2020-11-29 19:51:56,315 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:51:56,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:51:56,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:51:56,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:51:56,318 INFO L87 Difference]: Start difference. First operand 1445 states and 1659 transitions. Second operand 3 states. [2020-11-29 19:51:57,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:51:57,145 INFO L93 Difference]: Finished difference Result 3412 states and 3894 transitions. [2020-11-29 19:51:57,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:51:57,146 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 173 [2020-11-29 19:51:57,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:51:57,159 INFO L225 Difference]: With dead ends: 3412 [2020-11-29 19:51:57,160 INFO L226 Difference]: Without dead ends: 1969 [2020-11-29 19:51:57,163 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 19:51:57,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2020-11-29 19:51:57,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1707. [2020-11-29 19:51:57,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1707 states. [2020-11-29 19:51:57,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 1956 transitions. [2020-11-29 19:51:57,259 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 1956 transitions. Word has length 173 [2020-11-29 19:51:57,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:51:57,265 INFO L481 AbstractCegarLoop]: Abstraction has 1707 states and 1956 transitions. [2020-11-29 19:51:57,265 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:51:57,265 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 1956 transitions. [2020-11-29 19:51:57,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-11-29 19:51:57,272 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:51:57,274 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:51:57,274 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 19:51:57,274 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:51:57,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:51:57,275 INFO L82 PathProgramCache]: Analyzing trace with hash -265028403, now seen corresponding path program 1 times [2020-11-29 19:51:57,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:51:57,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395777196] [2020-11-29 19:51:57,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:51:57,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:51:57,412 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2020-11-29 19:51:57,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395777196] [2020-11-29 19:51:57,413 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:51:57,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 19:51:57,414 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80403146] [2020-11-29 19:51:57,414 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:51:57,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:51:57,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:51:57,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:51:57,429 INFO L87 Difference]: Start difference. First operand 1707 states and 1956 transitions. Second operand 3 states. [2020-11-29 19:51:58,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:51:58,121 INFO L93 Difference]: Finished difference Result 3412 states and 3910 transitions. [2020-11-29 19:51:58,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:51:58,123 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2020-11-29 19:51:58,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:51:58,136 INFO L225 Difference]: With dead ends: 3412 [2020-11-29 19:51:58,136 INFO L226 Difference]: Without dead ends: 1707 [2020-11-29 19:51:58,139 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 19:51:58,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2020-11-29 19:51:58,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1707. [2020-11-29 19:51:58,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1707 states. [2020-11-29 19:51:58,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 1942 transitions. [2020-11-29 19:51:58,186 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 1942 transitions. Word has length 189 [2020-11-29 19:51:58,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:51:58,186 INFO L481 AbstractCegarLoop]: Abstraction has 1707 states and 1942 transitions. [2020-11-29 19:51:58,187 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:51:58,187 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 1942 transitions. [2020-11-29 19:51:58,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-11-29 19:51:58,192 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:51:58,193 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:51:58,193 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 19:51:58,193 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:51:58,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:51:58,193 INFO L82 PathProgramCache]: Analyzing trace with hash -1073852235, now seen corresponding path program 1 times [2020-11-29 19:51:58,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:51:58,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467734262] [2020-11-29 19:51:58,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:51:58,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:51:58,323 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 78 proven. 3 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-11-29 19:51:58,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467734262] [2020-11-29 19:51:58,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [848683079] [2020-11-29 19:51:58,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc2dfdaa-7559-4080-a29b-24e12f2240a0/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 19:51:58,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:51:58,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 19:51:58,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:51:58,797 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-11-29 19:51:58,798 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 19:51:58,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-11-29 19:51:58,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030788672] [2020-11-29 19:51:58,799 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:51:58,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:51:58,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:51:58,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:51:58,801 INFO L87 Difference]: Start difference. First operand 1707 states and 1942 transitions. Second operand 3 states. [2020-11-29 19:51:59,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:51:59,814 INFO L93 Difference]: Finished difference Result 3805 states and 4356 transitions. [2020-11-29 19:51:59,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:51:59,815 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 205 [2020-11-29 19:51:59,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:51:59,831 INFO L225 Difference]: With dead ends: 3805 [2020-11-29 19:51:59,831 INFO L226 Difference]: Without dead ends: 2100 [2020-11-29 19:51:59,835 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:51:59,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2020-11-29 19:51:59,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 2100. [2020-11-29 19:51:59,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2100 states. [2020-11-29 19:51:59,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 2364 transitions. [2020-11-29 19:51:59,907 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 2364 transitions. Word has length 205 [2020-11-29 19:51:59,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:51:59,909 INFO L481 AbstractCegarLoop]: Abstraction has 2100 states and 2364 transitions. [2020-11-29 19:51:59,909 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:51:59,909 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 2364 transitions. [2020-11-29 19:51:59,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-11-29 19:51:59,918 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:51:59,918 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:52:00,144 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2020-11-29 19:52:00,144 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:52:00,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:52:00,145 INFO L82 PathProgramCache]: Analyzing trace with hash 996400845, now seen corresponding path program 1 times [2020-11-29 19:52:00,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:52:00,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069252999] [2020-11-29 19:52:00,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:52:00,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:52:00,295 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 64 proven. 3 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-11-29 19:52:00,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069252999] [2020-11-29 19:52:00,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2080988241] [2020-11-29 19:52:00,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc2dfdaa-7559-4080-a29b-24e12f2240a0/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 19:52:00,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:52:00,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 19:52:00,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:52:00,602 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-11-29 19:52:00,604 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 19:52:00,604 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-11-29 19:52:00,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154031786] [2020-11-29 19:52:00,605 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:52:00,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:52:00,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:52:00,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:52:00,606 INFO L87 Difference]: Start difference. First operand 2100 states and 2364 transitions. Second operand 3 states. [2020-11-29 19:52:01,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:52:01,348 INFO L93 Difference]: Finished difference Result 4196 states and 4725 transitions. [2020-11-29 19:52:01,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:52:01,349 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 224 [2020-11-29 19:52:01,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:52:01,350 INFO L225 Difference]: With dead ends: 4196 [2020-11-29 19:52:01,350 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 19:52:01,356 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:52:01,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 19:52:01,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 19:52:01,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 19:52:01,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 19:52:01,362 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 224 [2020-11-29 19:52:01,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:52:01,362 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:52:01,362 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:52:01,363 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 19:52:01,363 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 19:52:01,576 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 19:52:01,578 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 19:52:01,840 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 28 [2020-11-29 19:52:02,006 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 28 [2020-11-29 19:52:02,010 INFO L274 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2020-11-29 19:52:02,010 INFO L274 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-11-29 19:52:02,011 INFO L274 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-11-29 19:52:02,011 INFO L274 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-11-29 19:52:02,011 INFO L274 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2020-11-29 19:52:02,011 INFO L274 CegarLoopResult]: For program point L102(lines 102 400) no Hoare annotation was computed. [2020-11-29 19:52:02,011 INFO L274 CegarLoopResult]: For program point L598(line 598) no Hoare annotation was computed. [2020-11-29 19:52:02,011 INFO L274 CegarLoopResult]: For program point L334(lines 334 400) no Hoare annotation was computed. [2020-11-29 19:52:02,011 INFO L274 CegarLoopResult]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,011 INFO L274 CegarLoopResult]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,011 INFO L274 CegarLoopResult]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,011 INFO L274 CegarLoopResult]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,011 INFO L274 CegarLoopResult]: For program point L401(lines 401 403) no Hoare annotation was computed. [2020-11-29 19:52:02,012 INFO L274 CegarLoopResult]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,012 INFO L274 CegarLoopResult]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,012 INFO L274 CegarLoopResult]: For program point L302(lines 302 400) no Hoare annotation was computed. [2020-11-29 19:52:02,012 INFO L274 CegarLoopResult]: For program point L170(lines 170 400) no Hoare annotation was computed. [2020-11-29 19:52:02,012 INFO L274 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-11-29 19:52:02,012 INFO L274 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-11-29 19:52:02,012 INFO L274 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2020-11-29 19:52:02,012 INFO L274 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2020-11-29 19:52:02,012 INFO L274 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2020-11-29 19:52:02,012 INFO L274 CegarLoopResult]: For program point L402(line 402) no Hoare annotation was computed. [2020-11-29 19:52:02,012 INFO L274 CegarLoopResult]: For program point L204(lines 204 400) no Hoare annotation was computed. [2020-11-29 19:52:02,013 INFO L274 CegarLoopResult]: For program point L72(lines 72 400) no Hoare annotation was computed. [2020-11-29 19:52:02,013 INFO L274 CegarLoopResult]: For program point L271(lines 271 400) no Hoare annotation was computed. [2020-11-29 19:52:02,013 INFO L274 CegarLoopResult]: For program point L139(lines 139 400) no Hoare annotation was computed. [2020-11-29 19:52:02,013 INFO L274 CegarLoopResult]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,013 INFO L274 CegarLoopResult]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,013 INFO L274 CegarLoopResult]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,013 INFO L274 CegarLoopResult]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,013 INFO L274 CegarLoopResult]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,013 INFO L274 CegarLoopResult]: For program point L371(lines 371 400) no Hoare annotation was computed. [2020-11-29 19:52:02,013 INFO L274 CegarLoopResult]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,013 INFO L274 CegarLoopResult]: For program point L107(lines 107 400) no Hoare annotation was computed. [2020-11-29 19:52:02,013 INFO L274 CegarLoopResult]: For program point L41(lines 41 400) no Hoare annotation was computed. [2020-11-29 19:52:02,014 INFO L274 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-11-29 19:52:02,014 INFO L274 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-11-29 19:52:02,014 INFO L274 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2020-11-29 19:52:02,014 INFO L274 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-11-29 19:52:02,014 INFO L274 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-11-29 19:52:02,014 INFO L274 CegarLoopResult]: For program point L405(line 405) no Hoare annotation was computed. [2020-11-29 19:52:02,014 INFO L274 CegarLoopResult]: For program point L339(lines 339 400) no Hoare annotation was computed. [2020-11-29 19:52:02,014 INFO L274 CegarLoopResult]: For program point L207(lines 207 400) no Hoare annotation was computed. [2020-11-29 19:52:02,014 INFO L274 CegarLoopResult]: For program point L75(lines 75 400) no Hoare annotation was computed. [2020-11-29 19:52:02,014 INFO L274 CegarLoopResult]: For program point L373(lines 373 400) no Hoare annotation was computed. [2020-11-29 19:52:02,014 INFO L274 CegarLoopResult]: For program point L241(lines 241 400) no Hoare annotation was computed. [2020-11-29 19:52:02,015 INFO L274 CegarLoopResult]: For program point L175(lines 175 400) no Hoare annotation was computed. [2020-11-29 19:52:02,015 INFO L274 CegarLoopResult]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,015 INFO L274 CegarLoopResult]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,015 INFO L274 CegarLoopResult]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,015 INFO L274 CegarLoopResult]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,015 INFO L274 CegarLoopResult]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,015 INFO L274 CegarLoopResult]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,015 INFO L274 CegarLoopResult]: For program point L275(lines 275 400) no Hoare annotation was computed. [2020-11-29 19:52:02,015 INFO L274 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2020-11-29 19:52:02,015 INFO L274 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-11-29 19:52:02,015 INFO L274 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-11-29 19:52:02,015 INFO L274 CegarLoopResult]: For program point L474(line 474) no Hoare annotation was computed. [2020-11-29 19:52:02,016 INFO L274 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-11-29 19:52:02,016 INFO L274 CegarLoopResult]: For program point L408(line 408) no Hoare annotation was computed. [2020-11-29 19:52:02,021 INFO L274 CegarLoopResult]: For program point L375(lines 375 400) no Hoare annotation was computed. [2020-11-29 19:52:02,021 INFO L274 CegarLoopResult]: For program point L309(lines 309 400) no Hoare annotation was computed. [2020-11-29 19:52:02,021 INFO L274 CegarLoopResult]: For program point L45(lines 45 400) no Hoare annotation was computed. [2020-11-29 19:52:02,021 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-29 19:52:02,022 INFO L274 CegarLoopResult]: For program point L343(lines 343 400) no Hoare annotation was computed. [2020-11-29 19:52:02,022 INFO L274 CegarLoopResult]: For program point L112(lines 112 400) no Hoare annotation was computed. [2020-11-29 19:52:02,022 INFO L274 CegarLoopResult]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,022 INFO L274 CegarLoopResult]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,022 INFO L274 CegarLoopResult]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,022 INFO L274 CegarLoopResult]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,022 INFO L274 CegarLoopResult]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,023 INFO L274 CegarLoopResult]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,023 INFO L274 CegarLoopResult]: For program point L278(lines 278 400) no Hoare annotation was computed. [2020-11-29 19:52:02,023 INFO L274 CegarLoopResult]: For program point L146(lines 146 400) no Hoare annotation was computed. [2020-11-29 19:52:02,023 INFO L274 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-11-29 19:52:02,023 INFO L274 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-11-29 19:52:02,023 INFO L274 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2020-11-29 19:52:02,024 INFO L274 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2020-11-29 19:52:02,024 INFO L274 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2020-11-29 19:52:02,024 INFO L274 CegarLoopResult]: For program point L411(line 411) no Hoare annotation was computed. [2020-11-29 19:52:02,024 INFO L274 CegarLoopResult]: For program point L213(lines 213 400) no Hoare annotation was computed. [2020-11-29 19:52:02,024 INFO L274 CegarLoopResult]: For program point L82(lines 82 400) no Hoare annotation was computed. [2020-11-29 19:52:02,024 INFO L274 CegarLoopResult]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,025 INFO L274 CegarLoopResult]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,025 INFO L274 CegarLoopResult]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,025 INFO L274 CegarLoopResult]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,025 INFO L274 CegarLoopResult]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,025 INFO L274 CegarLoopResult]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,025 INFO L274 CegarLoopResult]: For program point L347(lines 347 400) no Hoare annotation was computed. [2020-11-29 19:52:02,026 INFO L274 CegarLoopResult]: For program point L248(lines 248 400) no Hoare annotation was computed. [2020-11-29 19:52:02,026 INFO L274 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2020-11-29 19:52:02,026 INFO L274 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-11-29 19:52:02,026 INFO L274 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2020-11-29 19:52:02,026 INFO L274 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-11-29 19:52:02,026 INFO L274 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-11-29 19:52:02,027 INFO L274 CegarLoopResult]: For program point L414(line 414) no Hoare annotation was computed. [2020-11-29 19:52:02,027 INFO L274 CegarLoopResult]: For program point L183(lines 183 400) no Hoare annotation was computed. [2020-11-29 19:52:02,027 INFO L274 CegarLoopResult]: For program point L150(lines 150 400) no Hoare annotation was computed. [2020-11-29 19:52:02,027 INFO L274 CegarLoopResult]: For program point L382(lines 382 400) no Hoare annotation was computed. [2020-11-29 19:52:02,027 INFO L274 CegarLoopResult]: For program point L316(lines 316 400) no Hoare annotation was computed. [2020-11-29 19:52:02,027 INFO L274 CegarLoopResult]: For program point L283(lines 283 400) no Hoare annotation was computed. [2020-11-29 19:52:02,027 INFO L274 CegarLoopResult]: For program point L118(lines 118 400) no Hoare annotation was computed. [2020-11-29 19:52:02,028 INFO L274 CegarLoopResult]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2020-11-29 19:52:02,028 INFO L274 CegarLoopResult]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,028 INFO L274 CegarLoopResult]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,028 INFO L274 CegarLoopResult]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,028 INFO L274 CegarLoopResult]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,028 INFO L274 CegarLoopResult]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,029 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 19:52:02,029 INFO L274 CegarLoopResult]: For program point L218(lines 218 400) no Hoare annotation was computed. [2020-11-29 19:52:02,029 INFO L274 CegarLoopResult]: For program point L53(lines 53 400) no Hoare annotation was computed. [2020-11-29 19:52:02,029 INFO L274 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-11-29 19:52:02,029 INFO L274 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2020-11-29 19:52:02,029 INFO L274 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2020-11-29 19:52:02,030 INFO L274 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-11-29 19:52:02,030 INFO L274 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-11-29 19:52:02,030 INFO L274 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-11-29 19:52:02,030 INFO L274 CegarLoopResult]: For program point L154(lines 154 400) no Hoare annotation was computed. [2020-11-29 19:52:02,031 INFO L270 CegarLoopResult]: At program point L584(lines 40 585) the Hoare annotation is: (let ((.cse2 (= ~a20~0 1)) (.cse1 (<= ~a16~0 5)) (.cse3 (<= ~a17~0 0)) (.cse4 (not (= ~a7~0 1))) (.cse5 (<= 15 ~a8~0)) (.cse0 (= ~a17~0 1))) (or (and (<= ~a16~0 4) .cse0) (and .cse1 .cse2 .cse0) (and .cse3 .cse2) (and (= ~a21~0 1) .cse2 .cse4 .cse0) (and .cse1 .cse3) (and .cse3 .cse5) (and .cse4 .cse5 .cse0))) [2020-11-29 19:52:02,032 INFO L274 CegarLoopResult]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,032 INFO L274 CegarLoopResult]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,032 INFO L274 CegarLoopResult]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,032 INFO L274 CegarLoopResult]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,033 INFO L274 CegarLoopResult]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,033 INFO L274 CegarLoopResult]: For program point L188(lines 188 400) no Hoare annotation was computed. [2020-11-29 19:52:02,034 INFO L274 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2020-11-29 19:52:02,034 INFO L274 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2020-11-29 19:52:02,034 INFO L274 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-11-29 19:52:02,034 INFO L274 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-11-29 19:52:02,034 INFO L274 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2020-11-29 19:52:02,034 INFO L274 CegarLoopResult]: For program point L387(lines 387 400) no Hoare annotation was computed. [2020-11-29 19:52:02,035 INFO L274 CegarLoopResult]: For program point L288(lines 288 400) no Hoare annotation was computed. [2020-11-29 19:52:02,035 INFO L274 CegarLoopResult]: For program point L255(lines 255 400) no Hoare annotation was computed. [2020-11-29 19:52:02,035 INFO L274 CegarLoopResult]: For program point L90(lines 90 400) no Hoare annotation was computed. [2020-11-29 19:52:02,035 INFO L274 CegarLoopResult]: For program point L355(lines 355 400) no Hoare annotation was computed. [2020-11-29 19:52:02,035 INFO L274 CegarLoopResult]: For program point L322(lines 322 400) no Hoare annotation was computed. [2020-11-29 19:52:02,035 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 19:52:02,036 INFO L274 CegarLoopResult]: For program point L124(lines 124 400) no Hoare annotation was computed. [2020-11-29 19:52:02,036 INFO L277 CegarLoopResult]: At program point L587(lines 587 604) the Hoare annotation is: true [2020-11-29 19:52:02,036 INFO L274 CegarLoopResult]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,036 INFO L274 CegarLoopResult]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,036 INFO L274 CegarLoopResult]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,036 INFO L274 CegarLoopResult]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,037 INFO L274 CegarLoopResult]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,037 INFO L274 CegarLoopResult]: For program point L224(lines 224 400) no Hoare annotation was computed. [2020-11-29 19:52:02,037 INFO L274 CegarLoopResult]: For program point L158(lines 158 400) no Hoare annotation was computed. [2020-11-29 19:52:02,037 INFO L274 CegarLoopResult]: For program point L59(lines 59 400) no Hoare annotation was computed. [2020-11-29 19:52:02,037 INFO L274 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2020-11-29 19:52:02,037 INFO L274 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2020-11-29 19:52:02,037 INFO L274 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2020-11-29 19:52:02,038 INFO L274 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-11-29 19:52:02,038 INFO L274 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-11-29 19:52:02,038 INFO L274 CegarLoopResult]: For program point L94(lines 94 400) no Hoare annotation was computed. [2020-11-29 19:52:02,038 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 19:52:02,038 INFO L274 CegarLoopResult]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,038 INFO L274 CegarLoopResult]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,039 INFO L274 CegarLoopResult]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,039 INFO L274 CegarLoopResult]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,039 INFO L274 CegarLoopResult]: For program point L392(lines 392 400) no Hoare annotation was computed. [2020-11-29 19:52:02,039 INFO L274 CegarLoopResult]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,039 INFO L274 CegarLoopResult]: For program point L326(lines 326 400) no Hoare annotation was computed. [2020-11-29 19:52:02,039 INFO L274 CegarLoopResult]: For program point L260(lines 260 400) no Hoare annotation was computed. [2020-11-29 19:52:02,039 INFO L274 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2020-11-29 19:52:02,040 INFO L274 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2020-11-29 19:52:02,040 INFO L274 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2020-11-29 19:52:02,040 INFO L274 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-11-29 19:52:02,040 INFO L274 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-11-29 19:52:02,040 INFO L274 CegarLoopResult]: For program point L228(lines 228 400) no Hoare annotation was computed. [2020-11-29 19:52:02,041 INFO L274 CegarLoopResult]: For program point L162(lines 162 400) no Hoare annotation was computed. [2020-11-29 19:52:02,042 INFO L274 CegarLoopResult]: For program point L129(lines 129 400) no Hoare annotation was computed. [2020-11-29 19:52:02,042 INFO L274 CegarLoopResult]: For program point L328(lines 328 400) no Hoare annotation was computed. [2020-11-29 19:52:02,042 INFO L274 CegarLoopResult]: For program point L196(lines 196 400) no Hoare annotation was computed. [2020-11-29 19:52:02,042 INFO L274 CegarLoopResult]: For program point L64(lines 64 400) no Hoare annotation was computed. [2020-11-29 19:52:02,042 INFO L274 CegarLoopResult]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,044 INFO L270 CegarLoopResult]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse2 (= ~a20~0 1)) (.cse1 (<= ~a16~0 5)) (.cse3 (<= ~a17~0 0)) (.cse4 (not (= ~a7~0 1))) (.cse5 (<= 15 ~a8~0)) (.cse0 (= ~a17~0 1))) (or (and (<= ~a16~0 4) .cse0) (and .cse1 .cse2 .cse0) (and .cse3 .cse2) (and (= ~a21~0 1) .cse2 .cse4 .cse0) (and .cse1 .cse3) (and .cse3 .cse5) (and .cse4 .cse5 .cse0))) [2020-11-29 19:52:02,044 INFO L274 CegarLoopResult]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,044 INFO L274 CegarLoopResult]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,045 INFO L274 CegarLoopResult]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,045 INFO L274 CegarLoopResult]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,045 INFO L274 CegarLoopResult]: For program point L296(lines 296 400) no Hoare annotation was computed. [2020-11-29 19:52:02,045 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 19:52:02,045 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-29 19:52:02,046 INFO L274 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-11-29 19:52:02,046 INFO L274 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2020-11-29 19:52:02,046 INFO L274 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2020-11-29 19:52:02,046 INFO L274 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2020-11-29 19:52:02,046 INFO L274 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-11-29 19:52:02,046 INFO L274 CegarLoopResult]: For program point L363(lines 363 400) no Hoare annotation was computed. [2020-11-29 19:52:02,047 INFO L274 CegarLoopResult]: For program point L199(lines 199 400) no Hoare annotation was computed. [2020-11-29 19:52:02,047 INFO L274 CegarLoopResult]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,047 INFO L274 CegarLoopResult]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,047 INFO L274 CegarLoopResult]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,047 INFO L274 CegarLoopResult]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,047 INFO L274 CegarLoopResult]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:52:02,047 INFO L274 CegarLoopResult]: For program point L365(lines 365 400) no Hoare annotation was computed. [2020-11-29 19:52:02,048 INFO L274 CegarLoopResult]: For program point L266(lines 266 400) no Hoare annotation was computed. [2020-11-29 19:52:02,048 INFO L274 CegarLoopResult]: For program point L233(lines 233 400) no Hoare annotation was computed. [2020-11-29 19:52:02,048 INFO L274 CegarLoopResult]: For program point L134(lines 134 400) no Hoare annotation was computed. [2020-11-29 19:52:02,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:52:02 BoogieIcfgContainer [2020-11-29 19:52:02,098 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 19:52:02,099 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:52:02,099 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:52:02,100 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:52:02,100 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:51:48" (3/4) ... [2020-11-29 19:52:02,105 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 19:52:02,146 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-29 19:52:02,147 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 19:52:02,149 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 19:52:02,151 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 19:52:02,391 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_bc2dfdaa-7559-4080-a29b-24e12f2240a0/bin/uautomizer/witness.graphml [2020-11-29 19:52:02,392 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:52:02,393 INFO L168 Benchmark]: Toolchain (without parser) took 16888.27 ms. Allocated memory was 94.4 MB in the beginning and 262.1 MB in the end (delta: 167.8 MB). Free memory was 67.4 MB in the beginning and 187.1 MB in the end (delta: -119.7 MB). Peak memory consumption was 47.7 MB. Max. memory is 16.1 GB. [2020-11-29 19:52:02,394 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 94.4 MB. Free memory is still 53.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:52:02,395 INFO L168 Benchmark]: CACSL2BoogieTranslator took 862.48 ms. Allocated memory was 94.4 MB in the beginning and 134.2 MB in the end (delta: 39.8 MB). Free memory was 67.2 MB in the beginning and 94.1 MB in the end (delta: -26.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 19:52:02,395 INFO L168 Benchmark]: Boogie Procedure Inliner took 129.90 ms. Allocated memory is still 134.2 MB. Free memory was 94.1 MB in the beginning and 88.6 MB in the end (delta: 5.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-29 19:52:02,396 INFO L168 Benchmark]: Boogie Preprocessor took 85.40 ms. Allocated memory is still 134.2 MB. Free memory was 88.6 MB in the beginning and 84.0 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:52:02,396 INFO L168 Benchmark]: RCFGBuilder took 1876.55 ms. Allocated memory is still 134.2 MB. Free memory was 84.0 MB in the beginning and 53.1 MB in the end (delta: 30.9 MB). Peak memory consumption was 56.9 MB. Max. memory is 16.1 GB. [2020-11-29 19:52:02,397 INFO L168 Benchmark]: TraceAbstraction took 13632.72 ms. Allocated memory was 134.2 MB in the beginning and 262.1 MB in the end (delta: 127.9 MB). Free memory was 52.5 MB in the beginning and 201.8 MB in the end (delta: -149.3 MB). Peak memory consumption was 102.9 MB. Max. memory is 16.1 GB. [2020-11-29 19:52:02,397 INFO L168 Benchmark]: Witness Printer took 292.82 ms. Allocated memory is still 262.1 MB. Free memory was 201.8 MB in the beginning and 187.1 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-29 19:52:02,400 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 94.4 MB. Free memory is still 53.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 862.48 ms. Allocated memory was 94.4 MB in the beginning and 134.2 MB in the end (delta: 39.8 MB). Free memory was 67.2 MB in the beginning and 94.1 MB in the end (delta: -26.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 129.90 ms. Allocated memory is still 134.2 MB. Free memory was 94.1 MB in the beginning and 88.6 MB in the end (delta: 5.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 85.40 ms. Allocated memory is still 134.2 MB. Free memory was 88.6 MB in the beginning and 84.0 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1876.55 ms. Allocated memory is still 134.2 MB. Free memory was 84.0 MB in the beginning and 53.1 MB in the end (delta: 30.9 MB). Peak memory consumption was 56.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 13632.72 ms. Allocated memory was 134.2 MB in the beginning and 262.1 MB in the end (delta: 127.9 MB). Free memory was 52.5 MB in the beginning and 201.8 MB in the end (delta: -149.3 MB). Peak memory consumption was 102.9 MB. Max. memory is 16.1 GB. * Witness Printer took 292.82 ms. Allocated memory is still 262.1 MB. Free memory was 201.8 MB in the beginning and 187.1 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: 40]: Loop Invariant Derived loop invariant: ((((((a16 <= 4 && a17 == 1) || ((a16 <= 5 && a20 == 1) && a17 == 1)) || (a17 <= 0 && a20 == 1)) || (((a21 == 1 && a20 == 1) && !(a7 == 1)) && a17 == 1)) || (a16 <= 5 && a17 <= 0)) || (a17 <= 0 && 15 <= a8)) || ((!(a7 == 1) && 15 <= a8) && a17 == 1) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: ((((((a16 <= 4 && a17 == 1) || ((a16 <= 5 && a20 == 1) && a17 == 1)) || (a17 <= 0 && a20 == 1)) || (((a21 == 1 && a20 == 1) && !(a7 == 1)) && a17 == 1)) || (a16 <= 5 && a17 <= 0)) || (a17 <= 0 && 15 <= a8)) || ((!(a7 == 1) && 15 <= a8) && a17 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 199 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12.9s, OverallIterations: 9, TraceHistogramMax: 5, AutomataDifference: 9.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 591 SDtfs, 1129 SDslu, 56 SDs, 0 SdLazy, 3382 SolverSat, 619 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 450 GetRequests, 435 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2100occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 524 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 41 NumberOfFragments, 129 HoareAnnotationTreeSize, 3 FomulaSimplifications, 528 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 32 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 1948 NumberOfCodeBlocks, 1948 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1937 ConstructedInterpolants, 0 QuantifiedInterpolants, 693813 SizeOfPredicates, 2 NumberOfNonLiveVariables, 809 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 11 InterpolantComputations, 9 PerfectInterpolantSequences, 898/904 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...