./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label26.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_9707dfae-e865-4e10-8555-c3835f12c8fc/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9707dfae-e865-4e10-8555-c3835f12c8fc/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9707dfae-e865-4e10-8555-c3835f12c8fc/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9707dfae-e865-4e10-8555-c3835f12c8fc/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label26.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9707dfae-e865-4e10-8555-c3835f12c8fc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9707dfae-e865-4e10-8555-c3835f12c8fc/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 51d92a84bc78e88f15f7a4ac533fe50d944a2d4f ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 22:35:12,556 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:35:12,558 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:35:12,621 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:35:12,627 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:35:12,641 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:35:12,644 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:35:12,650 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:35:12,653 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:35:12,659 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:35:12,660 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:35:12,662 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:35:12,664 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:35:12,666 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:35:12,668 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:35:12,670 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:35:12,672 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:35:12,673 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:35:12,680 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:35:12,685 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:35:12,690 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:35:12,692 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:35:12,694 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:35:12,695 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:35:12,702 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:35:12,707 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:35:12,708 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:35:12,709 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:35:12,711 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:35:12,712 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:35:12,712 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:35:12,713 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:35:12,715 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:35:12,717 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:35:12,718 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:35:12,718 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:35:12,719 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:35:12,719 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:35:12,720 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:35:12,721 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:35:12,721 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:35:12,725 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9707dfae-e865-4e10-8555-c3835f12c8fc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 22:35:12,760 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:35:12,761 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:35:12,762 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:35:12,762 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:35:12,762 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:35:12,763 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:35:12,763 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 22:35:12,763 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:35:12,763 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 22:35:12,763 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:35:12,764 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 22:35:12,764 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 22:35:12,764 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 22:35:12,764 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 22:35:12,764 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:35:12,765 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:35:12,765 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 22:35:12,765 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:35:12,765 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:35:12,766 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 22:35:12,766 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 22:35:12,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 22:35:12,766 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:35:12,767 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 22:35:12,767 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 22:35:12,767 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 22:35:12,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 22:35:12,767 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 22:35:12,768 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:35:12,768 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_9707dfae-e865-4e10-8555-c3835f12c8fc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9707dfae-e865-4e10-8555-c3835f12c8fc/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51d92a84bc78e88f15f7a4ac533fe50d944a2d4f [2020-11-29 22:35:13,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:35:13,093 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:35:13,099 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:35:13,103 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:35:13,106 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:35:13,108 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9707dfae-e865-4e10-8555-c3835f12c8fc/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem01_label26.c [2020-11-29 22:35:13,214 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9707dfae-e865-4e10-8555-c3835f12c8fc/bin/uautomizer/data/3ce48cc42/e8ab60ac6ea348b087380e4180a58a28/FLAGd496c4ba2 [2020-11-29 22:35:13,784 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:35:13,785 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9707dfae-e865-4e10-8555-c3835f12c8fc/sv-benchmarks/c/eca-rers2012/Problem01_label26.c [2020-11-29 22:35:13,802 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9707dfae-e865-4e10-8555-c3835f12c8fc/bin/uautomizer/data/3ce48cc42/e8ab60ac6ea348b087380e4180a58a28/FLAGd496c4ba2 [2020-11-29 22:35:14,055 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9707dfae-e865-4e10-8555-c3835f12c8fc/bin/uautomizer/data/3ce48cc42/e8ab60ac6ea348b087380e4180a58a28 [2020-11-29 22:35:14,058 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:35:14,061 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:35:14,065 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:35:14,065 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:35:14,069 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:35:14,071 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:35:14" (1/1) ... [2020-11-29 22:35:14,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f2fbca2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:35:14, skipping insertion in model container [2020-11-29 22:35:14,079 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:35:14" (1/1) ... [2020-11-29 22:35:14,086 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:35:14,173 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:35:14,600 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:35:14,622 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:35:14,740 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:35:14,759 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:35:14,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:35:14 WrapperNode [2020-11-29 22:35:14,760 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:35:14,761 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:35:14,762 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:35:14,762 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:35:14,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:35:14" (1/1) ... [2020-11-29 22:35:14,795 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:35:14" (1/1) ... [2020-11-29 22:35:14,842 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:35:14,843 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:35:14,843 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:35:14,843 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:35:14,852 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:35:14" (1/1) ... [2020-11-29 22:35:14,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:35:14" (1/1) ... [2020-11-29 22:35:14,857 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:35:14" (1/1) ... [2020-11-29 22:35:14,857 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:35:14" (1/1) ... [2020-11-29 22:35:14,878 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:35:14" (1/1) ... [2020-11-29 22:35:14,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:35:14" (1/1) ... [2020-11-29 22:35:14,894 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:35:14" (1/1) ... [2020-11-29 22:35:14,902 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:35:14,903 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:35:14,903 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:35:14,903 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:35:14,906 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:35:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9707dfae-e865-4e10-8555-c3835f12c8fc/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 22:35:14,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 22:35:14,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 22:35:14,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:35:14,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:35:16,316 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:35:16,317 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-29 22:35:16,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:35:16 BoogieIcfgContainer [2020-11-29 22:35:16,319 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:35:16,321 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 22:35:16,321 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 22:35:16,327 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 22:35:16,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 10:35:14" (1/3) ... [2020-11-29 22:35:16,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16ed1141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:35:16, skipping insertion in model container [2020-11-29 22:35:16,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:35:14" (2/3) ... [2020-11-29 22:35:16,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16ed1141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:35:16, skipping insertion in model container [2020-11-29 22:35:16,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:35:16" (3/3) ... [2020-11-29 22:35:16,331 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label26.c [2020-11-29 22:35:16,346 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 22:35:16,351 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 22:35:16,364 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 22:35:16,406 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 22:35:16,406 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 22:35:16,406 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 22:35:16,407 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:35:16,407 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:35:16,407 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 22:35:16,408 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:35:16,408 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 22:35:16,431 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states. [2020-11-29 22:35:16,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-11-29 22:35:16,449 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:35:16,450 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] [2020-11-29 22:35:16,450 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:35:16,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:35:16,457 INFO L82 PathProgramCache]: Analyzing trace with hash -583926962, now seen corresponding path program 1 times [2020-11-29 22:35:16,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:35:16,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710542267] [2020-11-29 22:35:16,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:35:16,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:35:16,943 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 22:35:16,944 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710542267] [2020-11-29 22:35:16,945 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:35:16,945 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 22:35:16,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268774772] [2020-11-29 22:35:16,951 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:35:16,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:35:16,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:35:16,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:35:16,966 INFO L87 Difference]: Start difference. First operand 199 states. Second operand 3 states. [2020-11-29 22:35:17,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:35:17,904 INFO L93 Difference]: Finished difference Result 529 states and 916 transitions. [2020-11-29 22:35:17,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:35:17,906 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2020-11-29 22:35:17,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:35:17,928 INFO L225 Difference]: With dead ends: 529 [2020-11-29 22:35:17,928 INFO L226 Difference]: Without dead ends: 266 [2020-11-29 22:35:17,932 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 22:35:17,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-11-29 22:35:17,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-11-29 22:35:17,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-11-29 22:35:18,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 386 transitions. [2020-11-29 22:35:18,002 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 386 transitions. Word has length 103 [2020-11-29 22:35:18,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:35:18,004 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 386 transitions. [2020-11-29 22:35:18,004 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:35:18,005 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 386 transitions. [2020-11-29 22:35:18,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-11-29 22:35:18,014 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:35:18,014 INFO L422 BasicCegarLoop]: trace histogram [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 22:35:18,015 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 22:35:18,015 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:35:18,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:35:18,018 INFO L82 PathProgramCache]: Analyzing trace with hash 481712025, now seen corresponding path program 1 times [2020-11-29 22:35:18,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:35:18,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263569922] [2020-11-29 22:35:18,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:35:18,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:35:18,137 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:35:18,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263569922] [2020-11-29 22:35:18,138 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:35:18,138 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 22:35:18,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513047624] [2020-11-29 22:35:18,143 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:35:18,143 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:35:18,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:35:18,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:35:18,147 INFO L87 Difference]: Start difference. First operand 266 states and 386 transitions. Second operand 3 states. [2020-11-29 22:35:18,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:35:18,778 INFO L93 Difference]: Finished difference Result 792 states and 1153 transitions. [2020-11-29 22:35:18,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:35:18,779 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 109 [2020-11-29 22:35:18,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:35:18,782 INFO L225 Difference]: With dead ends: 792 [2020-11-29 22:35:18,783 INFO L226 Difference]: Without dead ends: 528 [2020-11-29 22:35:18,785 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 22:35:18,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2020-11-29 22:35:18,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2020-11-29 22:35:18,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-11-29 22:35:18,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 727 transitions. [2020-11-29 22:35:18,829 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 727 transitions. Word has length 109 [2020-11-29 22:35:18,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:35:18,831 INFO L481 AbstractCegarLoop]: Abstraction has 528 states and 727 transitions. [2020-11-29 22:35:18,831 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:35:18,832 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 727 transitions. [2020-11-29 22:35:18,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-29 22:35:18,842 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:35:18,842 INFO L422 BasicCegarLoop]: trace histogram [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 22:35:18,843 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 22:35:18,843 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:35:18,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:35:18,845 INFO L82 PathProgramCache]: Analyzing trace with hash -241255271, now seen corresponding path program 1 times [2020-11-29 22:35:18,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:35:18,846 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51556755] [2020-11-29 22:35:18,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:35:18,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:35:19,185 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:35:19,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51556755] [2020-11-29 22:35:19,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:35:19,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:35:19,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061427748] [2020-11-29 22:35:19,188 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 22:35:19,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:35:19,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 22:35:19,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 22:35:19,191 INFO L87 Difference]: Start difference. First operand 528 states and 727 transitions. Second operand 4 states. [2020-11-29 22:35:19,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:35:19,949 INFO L93 Difference]: Finished difference Result 1411 states and 1930 transitions. [2020-11-29 22:35:19,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 22:35:19,950 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 110 [2020-11-29 22:35:19,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:35:19,955 INFO L225 Difference]: With dead ends: 1411 [2020-11-29 22:35:19,955 INFO L226 Difference]: Without dead ends: 790 [2020-11-29 22:35:19,957 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 22:35:19,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2020-11-29 22:35:19,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 659. [2020-11-29 22:35:19,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 659 states. [2020-11-29 22:35:19,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 813 transitions. [2020-11-29 22:35:19,984 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 813 transitions. Word has length 110 [2020-11-29 22:35:19,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:35:19,984 INFO L481 AbstractCegarLoop]: Abstraction has 659 states and 813 transitions. [2020-11-29 22:35:19,984 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 22:35:19,984 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 813 transitions. [2020-11-29 22:35:19,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-11-29 22:35:19,987 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:35:19,987 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1] [2020-11-29 22:35:19,987 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 22:35:19,988 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:35:19,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:35:19,988 INFO L82 PathProgramCache]: Analyzing trace with hash 2058278146, now seen corresponding path program 1 times [2020-11-29 22:35:19,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:35:19,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546625870] [2020-11-29 22:35:19,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:35:20,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:35:20,053 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-29 22:35:20,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546625870] [2020-11-29 22:35:20,054 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:35:20,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 22:35:20,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214818427] [2020-11-29 22:35:20,055 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:35:20,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:35:20,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:35:20,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:35:20,060 INFO L87 Difference]: Start difference. First operand 659 states and 813 transitions. Second operand 3 states. [2020-11-29 22:35:20,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:35:20,666 INFO L93 Difference]: Finished difference Result 1578 states and 1974 transitions. [2020-11-29 22:35:20,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:35:20,667 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2020-11-29 22:35:20,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:35:20,675 INFO L225 Difference]: With dead ends: 1578 [2020-11-29 22:35:20,675 INFO L226 Difference]: Without dead ends: 921 [2020-11-29 22:35:20,676 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 22:35:20,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2020-11-29 22:35:20,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 790. [2020-11-29 22:35:20,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2020-11-29 22:35:20,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 956 transitions. [2020-11-29 22:35:20,710 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 956 transitions. Word has length 120 [2020-11-29 22:35:20,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:35:20,711 INFO L481 AbstractCegarLoop]: Abstraction has 790 states and 956 transitions. [2020-11-29 22:35:20,711 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:35:20,711 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 956 transitions. [2020-11-29 22:35:20,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-11-29 22:35:20,713 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:35:20,713 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 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] [2020-11-29 22:35:20,714 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 22:35:20,714 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:35:20,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:35:20,714 INFO L82 PathProgramCache]: Analyzing trace with hash -1912917346, now seen corresponding path program 1 times [2020-11-29 22:35:20,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:35:20,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983586608] [2020-11-29 22:35:20,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:35:20,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:35:20,848 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-11-29 22:35:20,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983586608] [2020-11-29 22:35:20,848 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:35:20,848 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:35:20,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880822217] [2020-11-29 22:35:20,850 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:35:20,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:35:20,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:35:20,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:35:20,851 INFO L87 Difference]: Start difference. First operand 790 states and 956 transitions. Second operand 3 states. [2020-11-29 22:35:21,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:35:21,445 INFO L93 Difference]: Finished difference Result 2102 states and 2521 transitions. [2020-11-29 22:35:21,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:35:21,445 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 129 [2020-11-29 22:35:21,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:35:21,453 INFO L225 Difference]: With dead ends: 2102 [2020-11-29 22:35:21,453 INFO L226 Difference]: Without dead ends: 1314 [2020-11-29 22:35:21,455 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 22:35:21,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2020-11-29 22:35:21,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1052. [2020-11-29 22:35:21,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1052 states. [2020-11-29 22:35:21,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1268 transitions. [2020-11-29 22:35:21,495 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1268 transitions. Word has length 129 [2020-11-29 22:35:21,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:35:21,496 INFO L481 AbstractCegarLoop]: Abstraction has 1052 states and 1268 transitions. [2020-11-29 22:35:21,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:35:21,497 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1268 transitions. [2020-11-29 22:35:21,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-11-29 22:35:21,500 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:35:21,500 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 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] [2020-11-29 22:35:21,500 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 22:35:21,500 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:35:21,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:35:21,501 INFO L82 PathProgramCache]: Analyzing trace with hash -784284721, now seen corresponding path program 1 times [2020-11-29 22:35:21,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:35:21,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798267925] [2020-11-29 22:35:21,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:35:21,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:35:21,627 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 34 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-11-29 22:35:21,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798267925] [2020-11-29 22:35:21,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [100696918] [2020-11-29 22:35:21,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9707dfae-e865-4e10-8555-c3835f12c8fc/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 22:35:21,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:35:21,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 22:35:21,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:35:21,984 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-11-29 22:35:21,985 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 22:35:21,985 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-11-29 22:35:21,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121122507] [2020-11-29 22:35:21,986 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:35:21,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:35:21,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:35:21,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:35:21,988 INFO L87 Difference]: Start difference. First operand 1052 states and 1268 transitions. Second operand 3 states. [2020-11-29 22:35:22,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:35:22,722 INFO L93 Difference]: Finished difference Result 3019 states and 3665 transitions. [2020-11-29 22:35:22,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:35:22,723 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 135 [2020-11-29 22:35:22,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:35:22,741 INFO L225 Difference]: With dead ends: 3019 [2020-11-29 22:35:22,741 INFO L226 Difference]: Without dead ends: 1969 [2020-11-29 22:35:22,743 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:35:22,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2020-11-29 22:35:22,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1969. [2020-11-29 22:35:22,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1969 states. [2020-11-29 22:35:22,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2307 transitions. [2020-11-29 22:35:22,803 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2307 transitions. Word has length 135 [2020-11-29 22:35:22,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:35:22,805 INFO L481 AbstractCegarLoop]: Abstraction has 1969 states and 2307 transitions. [2020-11-29 22:35:22,805 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:35:22,806 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2307 transitions. [2020-11-29 22:35:22,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-11-29 22:35:22,810 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:35:22,810 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:35:23,033 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-11-29 22:35:23,034 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:35:23,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:35:23,035 INFO L82 PathProgramCache]: Analyzing trace with hash -728514295, now seen corresponding path program 1 times [2020-11-29 22:35:23,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:35:23,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992089628] [2020-11-29 22:35:23,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:35:23,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:35:23,148 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 49 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-11-29 22:35:23,148 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992089628] [2020-11-29 22:35:23,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [840488797] [2020-11-29 22:35:23,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9707dfae-e865-4e10-8555-c3835f12c8fc/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 22:35:23,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:35:23,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 22:35:23,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:35:23,386 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-11-29 22:35:23,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 22:35:23,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-11-29 22:35:23,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735262511] [2020-11-29 22:35:23,388 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:35:23,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:35:23,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:35:23,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:35:23,390 INFO L87 Difference]: Start difference. First operand 1969 states and 2307 transitions. Second operand 3 states. [2020-11-29 22:35:24,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:35:24,034 INFO L93 Difference]: Finished difference Result 4329 states and 5115 transitions. [2020-11-29 22:35:24,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:35:24,034 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2020-11-29 22:35:24,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:35:24,048 INFO L225 Difference]: With dead ends: 4329 [2020-11-29 22:35:24,048 INFO L226 Difference]: Without dead ends: 2362 [2020-11-29 22:35:24,051 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 146 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 22:35:24,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2020-11-29 22:35:24,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 2100. [2020-11-29 22:35:24,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2100 states. [2020-11-29 22:35:24,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 2462 transitions. [2020-11-29 22:35:24,102 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 2462 transitions. Word has length 147 [2020-11-29 22:35:24,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:35:24,102 INFO L481 AbstractCegarLoop]: Abstraction has 2100 states and 2462 transitions. [2020-11-29 22:35:24,102 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:35:24,102 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 2462 transitions. [2020-11-29 22:35:24,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-11-29 22:35:24,107 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:35:24,108 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:35:24,325 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:35:24,326 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:35:24,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:35:24,326 INFO L82 PathProgramCache]: Analyzing trace with hash 1058769664, now seen corresponding path program 1 times [2020-11-29 22:35:24,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:35:24,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442551227] [2020-11-29 22:35:24,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:35:24,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:35:24,403 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 50 proven. 3 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2020-11-29 22:35:24,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442551227] [2020-11-29 22:35:24,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1867838456] [2020-11-29 22:35:24,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9707dfae-e865-4e10-8555-c3835f12c8fc/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:35:24,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:35:24,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 22:35:24,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:35:24,604 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-11-29 22:35:24,604 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 22:35:24,604 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-11-29 22:35:24,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210285155] [2020-11-29 22:35:24,609 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:35:24,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:35:24,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:35:24,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:35:24,611 INFO L87 Difference]: Start difference. First operand 2100 states and 2462 transitions. Second operand 3 states. [2020-11-29 22:35:25,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:35:25,207 INFO L93 Difference]: Finished difference Result 4329 states and 5077 transitions. [2020-11-29 22:35:25,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:35:25,207 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 154 [2020-11-29 22:35:25,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:35:25,219 INFO L225 Difference]: With dead ends: 4329 [2020-11-29 22:35:25,219 INFO L226 Difference]: Without dead ends: 2231 [2020-11-29 22:35:25,222 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 153 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 22:35:25,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2020-11-29 22:35:25,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 2231. [2020-11-29 22:35:25,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2231 states. [2020-11-29 22:35:25,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2231 states to 2231 states and 2536 transitions. [2020-11-29 22:35:25,269 INFO L78 Accepts]: Start accepts. Automaton has 2231 states and 2536 transitions. Word has length 154 [2020-11-29 22:35:25,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:35:25,269 INFO L481 AbstractCegarLoop]: Abstraction has 2231 states and 2536 transitions. [2020-11-29 22:35:25,269 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:35:25,269 INFO L276 IsEmpty]: Start isEmpty. Operand 2231 states and 2536 transitions. [2020-11-29 22:35:25,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-11-29 22:35:25,274 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:35:25,274 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:35:25,489 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:35:25,490 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:35:25,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:35:25,490 INFO L82 PathProgramCache]: Analyzing trace with hash -781255763, now seen corresponding path program 1 times [2020-11-29 22:35:25,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:35:25,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178395382] [2020-11-29 22:35:25,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:35:25,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:35:25,629 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 67 proven. 3 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-11-29 22:35:25,630 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178395382] [2020-11-29 22:35:25,630 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [481081600] [2020-11-29 22:35:25,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9707dfae-e865-4e10-8555-c3835f12c8fc/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:35:25,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:35:25,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 22:35:25,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:35:25,809 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-11-29 22:35:25,809 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 22:35:25,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-11-29 22:35:25,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441448000] [2020-11-29 22:35:25,811 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:35:25,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:35:25,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:35:25,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:35:25,812 INFO L87 Difference]: Start difference. First operand 2231 states and 2536 transitions. Second operand 3 states. [2020-11-29 22:35:26,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:35:26,389 INFO L93 Difference]: Finished difference Result 5508 states and 6295 transitions. [2020-11-29 22:35:26,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:35:26,389 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 163 [2020-11-29 22:35:26,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:35:26,405 INFO L225 Difference]: With dead ends: 5508 [2020-11-29 22:35:26,406 INFO L226 Difference]: Without dead ends: 3279 [2020-11-29 22:35:26,409 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 162 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 22:35:26,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3279 states. [2020-11-29 22:35:26,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3279 to 2755. [2020-11-29 22:35:26,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2755 states. [2020-11-29 22:35:26,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2755 states to 2755 states and 3124 transitions. [2020-11-29 22:35:26,477 INFO L78 Accepts]: Start accepts. Automaton has 2755 states and 3124 transitions. Word has length 163 [2020-11-29 22:35:26,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:35:26,477 INFO L481 AbstractCegarLoop]: Abstraction has 2755 states and 3124 transitions. [2020-11-29 22:35:26,479 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:35:26,479 INFO L276 IsEmpty]: Start isEmpty. Operand 2755 states and 3124 transitions. [2020-11-29 22:35:26,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-11-29 22:35:26,485 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:35:26,485 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:35:26,702 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:35:26,703 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:35:26,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:35:26,703 INFO L82 PathProgramCache]: Analyzing trace with hash -308442483, now seen corresponding path program 1 times [2020-11-29 22:35:26,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:35:26,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739125900] [2020-11-29 22:35:26,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:35:26,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:35:26,773 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 53 proven. 3 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2020-11-29 22:35:26,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739125900] [2020-11-29 22:35:26,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1341886319] [2020-11-29 22:35:26,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9707dfae-e865-4e10-8555-c3835f12c8fc/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:35:26,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:35:26,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 22:35:26,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:35:26,939 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-11-29 22:35:26,939 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 22:35:26,939 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-11-29 22:35:26,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756527408] [2020-11-29 22:35:26,940 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:35:26,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:35:26,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:35:26,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:35:26,941 INFO L87 Difference]: Start difference. First operand 2755 states and 3124 transitions. Second operand 3 states. [2020-11-29 22:35:27,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:35:27,557 INFO L93 Difference]: Finished difference Result 6032 states and 6829 transitions. [2020-11-29 22:35:27,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:35:27,558 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 166 [2020-11-29 22:35:27,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:35:27,574 INFO L225 Difference]: With dead ends: 6032 [2020-11-29 22:35:27,575 INFO L226 Difference]: Without dead ends: 3148 [2020-11-29 22:35:27,578 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 165 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 22:35:27,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3148 states. [2020-11-29 22:35:27,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3148 to 2362. [2020-11-29 22:35:27,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2362 states. [2020-11-29 22:35:27,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2362 states to 2362 states and 2604 transitions. [2020-11-29 22:35:27,632 INFO L78 Accepts]: Start accepts. Automaton has 2362 states and 2604 transitions. Word has length 166 [2020-11-29 22:35:27,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:35:27,632 INFO L481 AbstractCegarLoop]: Abstraction has 2362 states and 2604 transitions. [2020-11-29 22:35:27,632 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:35:27,633 INFO L276 IsEmpty]: Start isEmpty. Operand 2362 states and 2604 transitions. [2020-11-29 22:35:27,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-11-29 22:35:27,639 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:35:27,639 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:35:27,855 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-11-29 22:35:27,856 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:35:27,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:35:27,857 INFO L82 PathProgramCache]: Analyzing trace with hash -1961853284, now seen corresponding path program 1 times [2020-11-29 22:35:27,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:35:27,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349287714] [2020-11-29 22:35:27,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:35:27,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:35:27,992 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 86 proven. 3 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-11-29 22:35:27,992 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349287714] [2020-11-29 22:35:27,992 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [266350062] [2020-11-29 22:35:27,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9707dfae-e865-4e10-8555-c3835f12c8fc/bin/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:35:28,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:35:28,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 22:35:28,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:35:28,210 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-11-29 22:35:28,211 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 22:35:28,211 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-11-29 22:35:28,211 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090739525] [2020-11-29 22:35:28,212 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:35:28,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:35:28,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:35:28,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:35:28,213 INFO L87 Difference]: Start difference. First operand 2362 states and 2604 transitions. Second operand 3 states. [2020-11-29 22:35:28,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:35:28,811 INFO L93 Difference]: Finished difference Result 4458 states and 4930 transitions. [2020-11-29 22:35:28,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:35:28,812 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 223 [2020-11-29 22:35:28,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:35:28,813 INFO L225 Difference]: With dead ends: 4458 [2020-11-29 22:35:28,813 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 22:35:28,817 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 222 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 22:35:28,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 22:35:28,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 22:35:28,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 22:35:28,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 22:35:28,818 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 223 [2020-11-29 22:35:28,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:35:28,819 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:35:28,819 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:35:28,819 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 22:35:28,819 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 22:35:29,045 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:35:29,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 22:35:29,584 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 37 [2020-11-29 22:35:29,937 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 37 [2020-11-29 22:35:29,940 INFO L274 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2020-11-29 22:35:29,940 INFO L274 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-11-29 22:35:29,940 INFO L274 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-11-29 22:35:29,940 INFO L274 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-11-29 22:35:29,940 INFO L274 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2020-11-29 22:35:29,940 INFO L274 CegarLoopResult]: For program point L102(lines 102 400) no Hoare annotation was computed. [2020-11-29 22:35:29,940 INFO L274 CegarLoopResult]: For program point L598(line 598) no Hoare annotation was computed. [2020-11-29 22:35:29,940 INFO L274 CegarLoopResult]: For program point L334(lines 334 400) no Hoare annotation was computed. [2020-11-29 22:35:29,940 INFO L274 CegarLoopResult]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,940 INFO L274 CegarLoopResult]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,940 INFO L274 CegarLoopResult]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,940 INFO L274 CegarLoopResult]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,940 INFO L274 CegarLoopResult]: For program point L401(lines 401 403) no Hoare annotation was computed. [2020-11-29 22:35:29,941 INFO L274 CegarLoopResult]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,941 INFO L274 CegarLoopResult]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,941 INFO L274 CegarLoopResult]: For program point L302(lines 302 400) no Hoare annotation was computed. [2020-11-29 22:35:29,941 INFO L274 CegarLoopResult]: For program point L170(lines 170 400) no Hoare annotation was computed. [2020-11-29 22:35:29,941 INFO L274 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-11-29 22:35:29,941 INFO L274 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-11-29 22:35:29,941 INFO L274 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2020-11-29 22:35:29,941 INFO L274 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2020-11-29 22:35:29,941 INFO L274 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2020-11-29 22:35:29,941 INFO L274 CegarLoopResult]: For program point L402(line 402) no Hoare annotation was computed. [2020-11-29 22:35:29,941 INFO L274 CegarLoopResult]: For program point L204(lines 204 400) no Hoare annotation was computed. [2020-11-29 22:35:29,941 INFO L274 CegarLoopResult]: For program point L72(lines 72 400) no Hoare annotation was computed. [2020-11-29 22:35:29,941 INFO L274 CegarLoopResult]: For program point L271(lines 271 400) no Hoare annotation was computed. [2020-11-29 22:35:29,941 INFO L274 CegarLoopResult]: For program point L139(lines 139 400) no Hoare annotation was computed. [2020-11-29 22:35:29,941 INFO L274 CegarLoopResult]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,941 INFO L274 CegarLoopResult]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,941 INFO L274 CegarLoopResult]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,942 INFO L274 CegarLoopResult]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,942 INFO L274 CegarLoopResult]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,942 INFO L274 CegarLoopResult]: For program point L371(lines 371 400) no Hoare annotation was computed. [2020-11-29 22:35:29,942 INFO L274 CegarLoopResult]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,942 INFO L274 CegarLoopResult]: For program point L107(lines 107 400) no Hoare annotation was computed. [2020-11-29 22:35:29,942 INFO L274 CegarLoopResult]: For program point L41(lines 41 400) no Hoare annotation was computed. [2020-11-29 22:35:29,942 INFO L274 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-11-29 22:35:29,942 INFO L274 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-11-29 22:35:29,942 INFO L274 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2020-11-29 22:35:29,942 INFO L274 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-11-29 22:35:29,942 INFO L274 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-11-29 22:35:29,942 INFO L274 CegarLoopResult]: For program point L405(line 405) no Hoare annotation was computed. [2020-11-29 22:35:29,942 INFO L274 CegarLoopResult]: For program point L339(lines 339 400) no Hoare annotation was computed. [2020-11-29 22:35:29,943 INFO L274 CegarLoopResult]: For program point L207(lines 207 400) no Hoare annotation was computed. [2020-11-29 22:35:29,943 INFO L274 CegarLoopResult]: For program point L75(lines 75 400) no Hoare annotation was computed. [2020-11-29 22:35:29,943 INFO L274 CegarLoopResult]: For program point L373(lines 373 400) no Hoare annotation was computed. [2020-11-29 22:35:29,943 INFO L274 CegarLoopResult]: For program point L241(lines 241 400) no Hoare annotation was computed. [2020-11-29 22:35:29,943 INFO L274 CegarLoopResult]: For program point L175(lines 175 400) no Hoare annotation was computed. [2020-11-29 22:35:29,943 INFO L274 CegarLoopResult]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,943 INFO L274 CegarLoopResult]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,943 INFO L274 CegarLoopResult]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,943 INFO L274 CegarLoopResult]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,943 INFO L274 CegarLoopResult]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,943 INFO L274 CegarLoopResult]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,943 INFO L274 CegarLoopResult]: For program point L275(lines 275 400) no Hoare annotation was computed. [2020-11-29 22:35:29,943 INFO L274 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2020-11-29 22:35:29,943 INFO L274 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-11-29 22:35:29,943 INFO L274 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-11-29 22:35:29,943 INFO L274 CegarLoopResult]: For program point L474(line 474) no Hoare annotation was computed. [2020-11-29 22:35:29,944 INFO L274 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-11-29 22:35:29,944 INFO L274 CegarLoopResult]: For program point L408(line 408) no Hoare annotation was computed. [2020-11-29 22:35:29,944 INFO L274 CegarLoopResult]: For program point L375(lines 375 400) no Hoare annotation was computed. [2020-11-29 22:35:29,944 INFO L274 CegarLoopResult]: For program point L309(lines 309 400) no Hoare annotation was computed. [2020-11-29 22:35:29,944 INFO L274 CegarLoopResult]: For program point L45(lines 45 400) no Hoare annotation was computed. [2020-11-29 22:35:29,944 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-29 22:35:29,944 INFO L274 CegarLoopResult]: For program point L343(lines 343 400) no Hoare annotation was computed. [2020-11-29 22:35:29,944 INFO L274 CegarLoopResult]: For program point L112(lines 112 400) no Hoare annotation was computed. [2020-11-29 22:35:29,944 INFO L274 CegarLoopResult]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,944 INFO L274 CegarLoopResult]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,944 INFO L274 CegarLoopResult]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,944 INFO L274 CegarLoopResult]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,944 INFO L274 CegarLoopResult]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,944 INFO L274 CegarLoopResult]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,944 INFO L274 CegarLoopResult]: For program point L278(lines 278 400) no Hoare annotation was computed. [2020-11-29 22:35:29,945 INFO L274 CegarLoopResult]: For program point L146(lines 146 400) no Hoare annotation was computed. [2020-11-29 22:35:29,945 INFO L274 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-11-29 22:35:29,945 INFO L274 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-11-29 22:35:29,945 INFO L274 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2020-11-29 22:35:29,945 INFO L274 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2020-11-29 22:35:29,945 INFO L274 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2020-11-29 22:35:29,945 INFO L274 CegarLoopResult]: For program point L411(line 411) no Hoare annotation was computed. [2020-11-29 22:35:29,945 INFO L274 CegarLoopResult]: For program point L213(lines 213 400) no Hoare annotation was computed. [2020-11-29 22:35:29,945 INFO L274 CegarLoopResult]: For program point L82(lines 82 400) no Hoare annotation was computed. [2020-11-29 22:35:29,945 INFO L274 CegarLoopResult]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,945 INFO L274 CegarLoopResult]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,945 INFO L274 CegarLoopResult]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,945 INFO L274 CegarLoopResult]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,945 INFO L274 CegarLoopResult]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,945 INFO L274 CegarLoopResult]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,946 INFO L274 CegarLoopResult]: For program point L347(lines 347 400) no Hoare annotation was computed. [2020-11-29 22:35:29,946 INFO L274 CegarLoopResult]: For program point L248(lines 248 400) no Hoare annotation was computed. [2020-11-29 22:35:29,946 INFO L274 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2020-11-29 22:35:29,946 INFO L274 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-11-29 22:35:29,946 INFO L274 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2020-11-29 22:35:29,946 INFO L274 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-11-29 22:35:29,946 INFO L274 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-11-29 22:35:29,946 INFO L274 CegarLoopResult]: For program point L414(line 414) no Hoare annotation was computed. [2020-11-29 22:35:29,946 INFO L274 CegarLoopResult]: For program point L183(lines 183 400) no Hoare annotation was computed. [2020-11-29 22:35:29,946 INFO L274 CegarLoopResult]: For program point L150(lines 150 400) no Hoare annotation was computed. [2020-11-29 22:35:29,946 INFO L274 CegarLoopResult]: For program point L382(lines 382 400) no Hoare annotation was computed. [2020-11-29 22:35:29,946 INFO L274 CegarLoopResult]: For program point L316(lines 316 400) no Hoare annotation was computed. [2020-11-29 22:35:29,946 INFO L274 CegarLoopResult]: For program point L283(lines 283 400) no Hoare annotation was computed. [2020-11-29 22:35:29,946 INFO L274 CegarLoopResult]: For program point L118(lines 118 400) no Hoare annotation was computed. [2020-11-29 22:35:29,946 INFO L274 CegarLoopResult]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2020-11-29 22:35:29,947 INFO L274 CegarLoopResult]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,947 INFO L274 CegarLoopResult]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,947 INFO L274 CegarLoopResult]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,947 INFO L274 CegarLoopResult]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,947 INFO L274 CegarLoopResult]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,947 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 22:35:29,947 INFO L274 CegarLoopResult]: For program point L218(lines 218 400) no Hoare annotation was computed. [2020-11-29 22:35:29,947 INFO L274 CegarLoopResult]: For program point L53(lines 53 400) no Hoare annotation was computed. [2020-11-29 22:35:29,947 INFO L274 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-11-29 22:35:29,947 INFO L274 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2020-11-29 22:35:29,947 INFO L274 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2020-11-29 22:35:29,947 INFO L274 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-11-29 22:35:29,947 INFO L274 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-11-29 22:35:29,947 INFO L274 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-11-29 22:35:29,947 INFO L274 CegarLoopResult]: For program point L154(lines 154 400) no Hoare annotation was computed. [2020-11-29 22:35:29,948 INFO L270 CegarLoopResult]: At program point L584(lines 40 585) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 0)) (.cse4 (= ~a20~0 1)) (.cse5 (<= ~a8~0 14)) (.cse1 (<= ~a7~0 0)) (.cse2 (<= 15 ~a8~0)) (.cse7 (= ~a21~0 1)) (.cse6 (<= ~a16~0 5)) (.cse8 (= ~a17~0 1)) (.cse3 (<= ~a20~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse4) (and .cse5 .cse4) (and .cse6 .cse0 .cse3) (and .cse5 .cse6 .cse3) (and .cse7 (= ~a12~0 8) .cse1 .cse4 .cse8) (and .cse0 .cse4 (<= 5 ~a16~0)) (and .cse5 .cse6 (<= ~a21~0 0)) (and .cse7 .cse1 .cse8 .cse2 .cse3) (and .cse7 .cse6 .cse8 .cse3))) [2020-11-29 22:35:29,948 INFO L274 CegarLoopResult]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,948 INFO L274 CegarLoopResult]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,948 INFO L274 CegarLoopResult]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,948 INFO L274 CegarLoopResult]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,948 INFO L274 CegarLoopResult]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,948 INFO L274 CegarLoopResult]: For program point L188(lines 188 400) no Hoare annotation was computed. [2020-11-29 22:35:29,948 INFO L274 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2020-11-29 22:35:29,948 INFO L274 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2020-11-29 22:35:29,949 INFO L274 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-11-29 22:35:29,949 INFO L274 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-11-29 22:35:29,949 INFO L274 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2020-11-29 22:35:29,949 INFO L274 CegarLoopResult]: For program point L387(lines 387 400) no Hoare annotation was computed. [2020-11-29 22:35:29,949 INFO L274 CegarLoopResult]: For program point L288(lines 288 400) no Hoare annotation was computed. [2020-11-29 22:35:29,949 INFO L274 CegarLoopResult]: For program point L255(lines 255 400) no Hoare annotation was computed. [2020-11-29 22:35:29,949 INFO L274 CegarLoopResult]: For program point L90(lines 90 400) no Hoare annotation was computed. [2020-11-29 22:35:29,949 INFO L274 CegarLoopResult]: For program point L355(lines 355 400) no Hoare annotation was computed. [2020-11-29 22:35:29,949 INFO L274 CegarLoopResult]: For program point L322(lines 322 400) no Hoare annotation was computed. [2020-11-29 22:35:29,949 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 22:35:29,949 INFO L274 CegarLoopResult]: For program point L124(lines 124 400) no Hoare annotation was computed. [2020-11-29 22:35:29,949 INFO L277 CegarLoopResult]: At program point L587(lines 587 604) the Hoare annotation is: true [2020-11-29 22:35:29,949 INFO L274 CegarLoopResult]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,949 INFO L274 CegarLoopResult]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,949 INFO L274 CegarLoopResult]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,949 INFO L274 CegarLoopResult]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,950 INFO L274 CegarLoopResult]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,950 INFO L274 CegarLoopResult]: For program point L224(lines 224 400) no Hoare annotation was computed. [2020-11-29 22:35:29,950 INFO L274 CegarLoopResult]: For program point L158(lines 158 400) no Hoare annotation was computed. [2020-11-29 22:35:29,950 INFO L274 CegarLoopResult]: For program point L59(lines 59 400) no Hoare annotation was computed. [2020-11-29 22:35:29,950 INFO L274 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2020-11-29 22:35:29,950 INFO L274 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2020-11-29 22:35:29,950 INFO L274 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2020-11-29 22:35:29,950 INFO L274 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-11-29 22:35:29,950 INFO L274 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-11-29 22:35:29,950 INFO L274 CegarLoopResult]: For program point L94(lines 94 400) no Hoare annotation was computed. [2020-11-29 22:35:29,950 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 22:35:29,950 INFO L274 CegarLoopResult]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,950 INFO L274 CegarLoopResult]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,950 INFO L274 CegarLoopResult]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,950 INFO L274 CegarLoopResult]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,950 INFO L274 CegarLoopResult]: For program point L392(lines 392 400) no Hoare annotation was computed. [2020-11-29 22:35:29,951 INFO L274 CegarLoopResult]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,951 INFO L274 CegarLoopResult]: For program point L326(lines 326 400) no Hoare annotation was computed. [2020-11-29 22:35:29,951 INFO L274 CegarLoopResult]: For program point L260(lines 260 400) no Hoare annotation was computed. [2020-11-29 22:35:29,951 INFO L274 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2020-11-29 22:35:29,951 INFO L274 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2020-11-29 22:35:29,951 INFO L274 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2020-11-29 22:35:29,951 INFO L274 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-11-29 22:35:29,951 INFO L274 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-11-29 22:35:29,951 INFO L274 CegarLoopResult]: For program point L228(lines 228 400) no Hoare annotation was computed. [2020-11-29 22:35:29,951 INFO L274 CegarLoopResult]: For program point L162(lines 162 400) no Hoare annotation was computed. [2020-11-29 22:35:29,951 INFO L274 CegarLoopResult]: For program point L129(lines 129 400) no Hoare annotation was computed. [2020-11-29 22:35:29,951 INFO L274 CegarLoopResult]: For program point L328(lines 328 400) no Hoare annotation was computed. [2020-11-29 22:35:29,951 INFO L274 CegarLoopResult]: For program point L196(lines 196 400) no Hoare annotation was computed. [2020-11-29 22:35:29,951 INFO L274 CegarLoopResult]: For program point L64(lines 64 400) no Hoare annotation was computed. [2020-11-29 22:35:29,951 INFO L274 CegarLoopResult]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,952 INFO L270 CegarLoopResult]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 0)) (.cse4 (= ~a20~0 1)) (.cse5 (<= ~a8~0 14)) (.cse1 (<= ~a7~0 0)) (.cse2 (<= 15 ~a8~0)) (.cse7 (= ~a21~0 1)) (.cse6 (<= ~a16~0 5)) (.cse8 (= ~a17~0 1)) (.cse3 (<= ~a20~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse4) (and .cse5 .cse4) (and .cse6 .cse0 .cse3) (and .cse5 .cse6 .cse3) (and .cse7 (= ~a12~0 8) .cse1 .cse4 .cse8) (and .cse0 .cse4 (<= 5 ~a16~0)) (and .cse5 .cse6 (<= ~a21~0 0)) (and .cse7 .cse1 .cse8 .cse2 .cse3) (and .cse7 .cse6 .cse8 .cse3))) [2020-11-29 22:35:29,952 INFO L274 CegarLoopResult]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,952 INFO L274 CegarLoopResult]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,952 INFO L274 CegarLoopResult]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,952 INFO L274 CegarLoopResult]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,952 INFO L274 CegarLoopResult]: For program point L296(lines 296 400) no Hoare annotation was computed. [2020-11-29 22:35:29,952 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 22:35:29,952 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-29 22:35:29,952 INFO L274 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-11-29 22:35:29,952 INFO L274 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2020-11-29 22:35:29,952 INFO L274 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2020-11-29 22:35:29,952 INFO L274 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2020-11-29 22:35:29,953 INFO L274 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-11-29 22:35:29,953 INFO L274 CegarLoopResult]: For program point L363(lines 363 400) no Hoare annotation was computed. [2020-11-29 22:35:29,953 INFO L274 CegarLoopResult]: For program point L199(lines 199 400) no Hoare annotation was computed. [2020-11-29 22:35:29,953 INFO L274 CegarLoopResult]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,953 INFO L274 CegarLoopResult]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,953 INFO L274 CegarLoopResult]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,953 INFO L274 CegarLoopResult]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,953 INFO L274 CegarLoopResult]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 22:35:29,953 INFO L274 CegarLoopResult]: For program point L365(lines 365 400) no Hoare annotation was computed. [2020-11-29 22:35:29,953 INFO L274 CegarLoopResult]: For program point L266(lines 266 400) no Hoare annotation was computed. [2020-11-29 22:35:29,953 INFO L274 CegarLoopResult]: For program point L233(lines 233 400) no Hoare annotation was computed. [2020-11-29 22:35:29,953 INFO L274 CegarLoopResult]: For program point L134(lines 134 400) no Hoare annotation was computed. [2020-11-29 22:35:29,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 10:35:29 BoogieIcfgContainer [2020-11-29 22:35:29,979 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 22:35:29,980 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:35:29,980 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:35:29,980 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:35:29,981 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:35:16" (3/4) ... [2020-11-29 22:35:29,984 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 22:35:30,015 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-29 22:35:30,017 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 22:35:30,025 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 22:35:30,026 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 22:35:30,202 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9707dfae-e865-4e10-8555-c3835f12c8fc/bin/uautomizer/witness.graphml [2020-11-29 22:35:30,202 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:35:30,203 INFO L168 Benchmark]: Toolchain (without parser) took 16141.47 ms. Allocated memory was 113.2 MB in the beginning and 354.4 MB in the end (delta: 241.2 MB). Free memory was 81.3 MB in the beginning and 153.8 MB in the end (delta: -72.5 MB). Peak memory consumption was 168.9 MB. Max. memory is 16.1 GB. [2020-11-29 22:35:30,203 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 81.8 MB. Free memory is still 41.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:35:30,204 INFO L168 Benchmark]: CACSL2BoogieTranslator took 695.63 ms. Allocated memory is still 113.2 MB. Free memory was 81.0 MB in the beginning and 74.0 MB in the end (delta: 7.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 22:35:30,204 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.63 ms. Allocated memory is still 113.2 MB. Free memory was 74.0 MB in the beginning and 68.3 MB in the end (delta: 5.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 22:35:30,204 INFO L168 Benchmark]: Boogie Preprocessor took 59.39 ms. Allocated memory is still 113.2 MB. Free memory was 68.3 MB in the beginning and 63.5 MB in the end (delta: 4.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-29 22:35:30,205 INFO L168 Benchmark]: RCFGBuilder took 1416.43 ms. Allocated memory is still 113.2 MB. Free memory was 63.5 MB in the beginning and 50.7 MB in the end (delta: 12.8 MB). Peak memory consumption was 43.5 MB. Max. memory is 16.1 GB. [2020-11-29 22:35:30,205 INFO L168 Benchmark]: TraceAbstraction took 13658.41 ms. Allocated memory was 113.2 MB in the beginning and 354.4 MB in the end (delta: 241.2 MB). Free memory was 50.7 MB in the beginning and 169.6 MB in the end (delta: -118.9 MB). Peak memory consumption was 121.6 MB. Max. memory is 16.1 GB. [2020-11-29 22:35:30,205 INFO L168 Benchmark]: Witness Printer took 222.31 ms. Allocated memory is still 354.4 MB. Free memory was 169.6 MB in the beginning and 153.8 MB in the end (delta: 15.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-29 22:35:30,208 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 81.8 MB. Free memory is still 41.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 695.63 ms. Allocated memory is still 113.2 MB. Free memory was 81.0 MB in the beginning and 74.0 MB in the end (delta: 7.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 80.63 ms. Allocated memory is still 113.2 MB. Free memory was 74.0 MB in the beginning and 68.3 MB in the end (delta: 5.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 59.39 ms. Allocated memory is still 113.2 MB. Free memory was 68.3 MB in the beginning and 63.5 MB in the end (delta: 4.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1416.43 ms. Allocated memory is still 113.2 MB. Free memory was 63.5 MB in the beginning and 50.7 MB in the end (delta: 12.8 MB). Peak memory consumption was 43.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 13658.41 ms. Allocated memory was 113.2 MB in the beginning and 354.4 MB in the end (delta: 241.2 MB). Free memory was 50.7 MB in the beginning and 169.6 MB in the end (delta: -118.9 MB). Peak memory consumption was 121.6 MB. Max. memory is 16.1 GB. * Witness Printer took 222.31 ms. Allocated memory is still 354.4 MB. Free memory was 169.6 MB in the beginning and 153.8 MB in the end (delta: 15.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 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: (((((((((((a17 <= 0 && a7 <= 0) && 15 <= a8) && a20 <= 0) || ((a17 <= 0 && a7 <= 0) && a20 == 1)) || (a8 <= 14 && a20 == 1)) || ((a16 <= 5 && a17 <= 0) && a20 <= 0)) || ((a8 <= 14 && a16 <= 5) && a20 <= 0)) || ((((a21 == 1 && a12 == 8) && a7 <= 0) && a20 == 1) && a17 == 1)) || ((a17 <= 0 && a20 == 1) && 5 <= a16)) || ((a8 <= 14 && a16 <= 5) && a21 <= 0)) || ((((a21 == 1 && a7 <= 0) && a17 == 1) && 15 <= a8) && a20 <= 0)) || (((a21 == 1 && a16 <= 5) && a17 == 1) && a20 <= 0) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: (((((((((((a17 <= 0 && a7 <= 0) && 15 <= a8) && a20 <= 0) || ((a17 <= 0 && a7 <= 0) && a20 == 1)) || (a8 <= 14 && a20 == 1)) || ((a16 <= 5 && a17 <= 0) && a20 <= 0)) || ((a8 <= 14 && a16 <= 5) && a20 <= 0)) || ((((a21 == 1 && a12 == 8) && a7 <= 0) && a20 == 1) && a17 == 1)) || ((a17 <= 0 && a20 == 1) && 5 <= a16)) || ((a8 <= 14 && a16 <= 5) && a21 <= 0)) || ((((a21 == 1 && a7 <= 0) && a17 == 1) && 15 <= a8) && a20 <= 0)) || (((a21 == 1 && a16 <= 5) && a17 == 1) && a20 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 199 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12.6s, OverallIterations: 11, TraceHistogramMax: 7, AutomataDifference: 7.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 943 SDtfs, 996 SDslu, 63 SDs, 0 SdLazy, 3750 SolverSat, 568 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1012 GetRequests, 988 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2755occurred in iteration=9, 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, 11 MinimizatonAttempts, 2096 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 43 NumberOfFragments, 233 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1374 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 462 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 2547 NumberOfCodeBlocks, 2547 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 2530 ConstructedInterpolants, 0 QuantifiedInterpolants, 929517 SizeOfPredicates, 5 NumberOfNonLiveVariables, 2258 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 17 InterpolantComputations, 11 PerfectInterpolantSequences, 1580/1598 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...