./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label49.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_ce451ef9-f099-4abf-829a-9afc4ca98f14/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ce451ef9-f099-4abf-829a-9afc4ca98f14/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ce451ef9-f099-4abf-829a-9afc4ca98f14/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ce451ef9-f099-4abf-829a-9afc4ca98f14/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label49.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ce451ef9-f099-4abf-829a-9afc4ca98f14/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ce451ef9-f099-4abf-829a-9afc4ca98f14/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 c0dd0437702be90d13fc146af1d9876648d8805f ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 20:57:14,008 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:57:14,012 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:57:14,114 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:57:14,116 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:57:14,124 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:57:14,128 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:57:14,133 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:57:14,137 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:57:14,140 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:57:14,142 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:57:14,146 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:57:14,147 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:57:14,157 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:57:14,159 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:57:14,162 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:57:14,165 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:57:14,168 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:57:14,178 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:57:14,186 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:57:14,194 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:57:14,196 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:57:14,198 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:57:14,200 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:57:14,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:57:14,207 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:57:14,207 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:57:14,210 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:57:14,211 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:57:14,213 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:57:14,213 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:57:14,215 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:57:14,218 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:57:14,219 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:57:14,221 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:57:14,221 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:57:14,223 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:57:14,223 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:57:14,223 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:57:14,225 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:57:14,226 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:57:14,229 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ce451ef9-f099-4abf-829a-9afc4ca98f14/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 20:57:14,280 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:57:14,281 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:57:14,284 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:57:14,284 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:57:14,285 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:57:14,285 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:57:14,285 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:57:14,285 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:57:14,286 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:57:14,286 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:57:14,287 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 20:57:14,288 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 20:57:14,288 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 20:57:14,288 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:57:14,289 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:57:14,289 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:57:14,289 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 20:57:14,290 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:57:14,290 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:57:14,290 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 20:57:14,291 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 20:57:14,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 20:57:14,291 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:57:14,291 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 20:57:14,292 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 20:57:14,292 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:57:14,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 20:57:14,293 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 20:57:14,293 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:57:14,293 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_ce451ef9-f099-4abf-829a-9afc4ca98f14/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ce451ef9-f099-4abf-829a-9afc4ca98f14/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c0dd0437702be90d13fc146af1d9876648d8805f [2020-11-29 20:57:14,634 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:57:14,666 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:57:14,669 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:57:14,671 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:57:14,672 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:57:14,673 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ce451ef9-f099-4abf-829a-9afc4ca98f14/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem14_label49.c [2020-11-29 20:57:14,770 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ce451ef9-f099-4abf-829a-9afc4ca98f14/bin/uautomizer/data/dace214e1/2289c3aa7ac3492ea7b5720a78b0654c/FLAG665b9118c [2020-11-29 20:57:15,608 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:57:15,609 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ce451ef9-f099-4abf-829a-9afc4ca98f14/sv-benchmarks/c/eca-rers2012/Problem14_label49.c [2020-11-29 20:57:15,635 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ce451ef9-f099-4abf-829a-9afc4ca98f14/bin/uautomizer/data/dace214e1/2289c3aa7ac3492ea7b5720a78b0654c/FLAG665b9118c [2020-11-29 20:57:15,807 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ce451ef9-f099-4abf-829a-9afc4ca98f14/bin/uautomizer/data/dace214e1/2289c3aa7ac3492ea7b5720a78b0654c [2020-11-29 20:57:15,810 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:57:15,812 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:57:15,820 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:57:15,820 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:57:15,824 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:57:15,825 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:57:15" (1/1) ... [2020-11-29 20:57:15,827 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14dc5a96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:57:15, skipping insertion in model container [2020-11-29 20:57:15,827 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:57:15" (1/1) ... [2020-11-29 20:57:15,835 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:57:15,886 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:57:16,511 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:57:16,522 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:57:16,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:57:16,707 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:57:16,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:57:16 WrapperNode [2020-11-29 20:57:16,708 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:57:16,710 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:57:16,710 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:57:16,710 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:57:16,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:57:16" (1/1) ... [2020-11-29 20:57:16,753 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:57:16" (1/1) ... [2020-11-29 20:57:16,865 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:57:16,867 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:57:16,868 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:57:16,868 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:57:16,879 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:57:16" (1/1) ... [2020-11-29 20:57:16,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:57:16" (1/1) ... [2020-11-29 20:57:16,897 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:57:16" (1/1) ... [2020-11-29 20:57:16,897 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:57:16" (1/1) ... [2020-11-29 20:57:16,950 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:57:16" (1/1) ... [2020-11-29 20:57:16,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:57:16" (1/1) ... [2020-11-29 20:57:16,990 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:57:16" (1/1) ... [2020-11-29 20:57:17,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:57:17,024 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:57:17,024 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:57:17,025 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:57:17,026 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:57:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce451ef9-f099-4abf-829a-9afc4ca98f14/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 20:57:17,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 20:57:17,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:57:17,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:57:17,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:57:19,253 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:57:19,253 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-29 20:57:19,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:57:19 BoogieIcfgContainer [2020-11-29 20:57:19,258 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:57:19,260 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 20:57:19,261 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 20:57:19,268 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 20:57:19,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 08:57:15" (1/3) ... [2020-11-29 20:57:19,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a7bd4fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:57:19, skipping insertion in model container [2020-11-29 20:57:19,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:57:16" (2/3) ... [2020-11-29 20:57:19,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a7bd4fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:57:19, skipping insertion in model container [2020-11-29 20:57:19,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:57:19" (3/3) ... [2020-11-29 20:57:19,272 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label49.c [2020-11-29 20:57:19,285 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 20:57:19,291 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 20:57:19,305 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 20:57:19,334 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 20:57:19,335 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 20:57:19,335 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 20:57:19,335 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:57:19,335 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:57:19,336 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 20:57:19,336 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:57:19,336 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 20:57:19,360 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states. [2020-11-29 20:57:19,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-11-29 20:57:19,371 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:57:19,372 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] [2020-11-29 20:57:19,373 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:57:19,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:57:19,382 INFO L82 PathProgramCache]: Analyzing trace with hash 118092897, now seen corresponding path program 1 times [2020-11-29 20:57:19,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:57:19,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57660934] [2020-11-29 20:57:19,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:57:19,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:57:19,874 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 20:57:19,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57660934] [2020-11-29 20:57:19,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:57:19,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:57:19,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31687330] [2020-11-29 20:57:19,882 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:57:19,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:57:19,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:57:19,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:57:19,900 INFO L87 Difference]: Start difference. First operand 246 states. Second operand 4 states. [2020-11-29 20:57:22,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:57:22,856 INFO L93 Difference]: Finished difference Result 853 states and 1561 transitions. [2020-11-29 20:57:22,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:57:22,859 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-11-29 20:57:22,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:57:22,902 INFO L225 Difference]: With dead ends: 853 [2020-11-29 20:57:22,903 INFO L226 Difference]: Without dead ends: 538 [2020-11-29 20:57:22,908 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:57:22,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2020-11-29 20:57:23,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2020-11-29 20:57:23,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2020-11-29 20:57:23,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 778 transitions. [2020-11-29 20:57:23,034 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 778 transitions. Word has length 59 [2020-11-29 20:57:23,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:57:23,035 INFO L481 AbstractCegarLoop]: Abstraction has 538 states and 778 transitions. [2020-11-29 20:57:23,035 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:57:23,036 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 778 transitions. [2020-11-29 20:57:23,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-11-29 20:57:23,061 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:57:23,061 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-29 20:57:23,062 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 20:57:23,062 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:57:23,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:57:23,063 INFO L82 PathProgramCache]: Analyzing trace with hash 1272154725, now seen corresponding path program 1 times [2020-11-29 20:57:23,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:57:23,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284335067] [2020-11-29 20:57:23,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:57:23,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:57:23,449 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-11-29 20:57:23,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284335067] [2020-11-29 20:57:23,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:57:23,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:57:23,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816771396] [2020-11-29 20:57:23,453 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:57:23,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:57:23,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:57:23,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:57:23,457 INFO L87 Difference]: Start difference. First operand 538 states and 778 transitions. Second operand 3 states. [2020-11-29 20:57:24,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:57:24,679 INFO L93 Difference]: Finished difference Result 1074 states and 1656 transitions. [2020-11-29 20:57:24,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:57:24,680 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 207 [2020-11-29 20:57:24,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:57:24,685 INFO L225 Difference]: With dead ends: 1074 [2020-11-29 20:57:24,686 INFO L226 Difference]: Without dead ends: 716 [2020-11-29 20:57:24,689 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 20:57:24,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2020-11-29 20:57:24,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2020-11-29 20:57:24,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2020-11-29 20:57:24,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 968 transitions. [2020-11-29 20:57:24,750 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 968 transitions. Word has length 207 [2020-11-29 20:57:24,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:57:24,751 INFO L481 AbstractCegarLoop]: Abstraction has 716 states and 968 transitions. [2020-11-29 20:57:24,751 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:57:24,751 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 968 transitions. [2020-11-29 20:57:24,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-11-29 20:57:24,767 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:57:24,767 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:57:24,768 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 20:57:24,768 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:57:24,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:57:24,769 INFO L82 PathProgramCache]: Analyzing trace with hash 1676370204, now seen corresponding path program 1 times [2020-11-29 20:57:24,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:57:24,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861065559] [2020-11-29 20:57:24,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:57:24,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:57:25,161 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-11-29 20:57:25,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861065559] [2020-11-29 20:57:25,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:57:25,163 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:57:25,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520807567] [2020-11-29 20:57:25,166 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:57:25,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:57:25,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:57:25,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:57:25,171 INFO L87 Difference]: Start difference. First operand 716 states and 968 transitions. Second operand 4 states. [2020-11-29 20:57:26,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:57:26,449 INFO L93 Difference]: Finished difference Result 1637 states and 2268 transitions. [2020-11-29 20:57:26,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:57:26,450 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 230 [2020-11-29 20:57:26,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:57:26,459 INFO L225 Difference]: With dead ends: 1637 [2020-11-29 20:57:26,459 INFO L226 Difference]: Without dead ends: 1072 [2020-11-29 20:57:26,461 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 20:57:26,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2020-11-29 20:57:26,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 894. [2020-11-29 20:57:26,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 894 states. [2020-11-29 20:57:26,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1047 transitions. [2020-11-29 20:57:26,499 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1047 transitions. Word has length 230 [2020-11-29 20:57:26,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:57:26,500 INFO L481 AbstractCegarLoop]: Abstraction has 894 states and 1047 transitions. [2020-11-29 20:57:26,501 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:57:26,501 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1047 transitions. [2020-11-29 20:57:26,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2020-11-29 20:57:26,510 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:57:26,511 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:57:26,511 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 20:57:26,511 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:57:26,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:57:26,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1976839152, now seen corresponding path program 1 times [2020-11-29 20:57:26,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:57:26,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79000105] [2020-11-29 20:57:26,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:57:26,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:57:27,659 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 234 proven. 130 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2020-11-29 20:57:27,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79000105] [2020-11-29 20:57:27,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093436808] [2020-11-29 20:57:27,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce451ef9-f099-4abf-829a-9afc4ca98f14/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 20:57:27,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:57:27,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 20:57:27,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:57:28,702 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2020-11-29 20:57:28,703 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 20:57:28,703 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2020-11-29 20:57:28,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962997988] [2020-11-29 20:57:28,705 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:57:28,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:57:28,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:57:28,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-29 20:57:28,706 INFO L87 Difference]: Start difference. First operand 894 states and 1047 transitions. Second operand 3 states. [2020-11-29 20:57:29,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:57:29,904 INFO L93 Difference]: Finished difference Result 1786 states and 2128 transitions. [2020-11-29 20:57:29,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:57:29,905 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 361 [2020-11-29 20:57:29,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:57:29,915 INFO L225 Difference]: With dead ends: 1786 [2020-11-29 20:57:29,915 INFO L226 Difference]: Without dead ends: 1072 [2020-11-29 20:57:29,917 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 360 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-29 20:57:29,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2020-11-29 20:57:29,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2020-11-29 20:57:29,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1072 states. [2020-11-29 20:57:29,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1250 transitions. [2020-11-29 20:57:29,954 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1250 transitions. Word has length 361 [2020-11-29 20:57:29,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:57:29,956 INFO L481 AbstractCegarLoop]: Abstraction has 1072 states and 1250 transitions. [2020-11-29 20:57:29,956 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:57:29,956 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1250 transitions. [2020-11-29 20:57:29,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2020-11-29 20:57:29,972 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:57:29,973 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:57:30,189 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 20:57:30,190 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:57:30,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:57:30,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1686484168, now seen corresponding path program 1 times [2020-11-29 20:57:30,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:57:30,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192896554] [2020-11-29 20:57:30,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:57:30,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:57:30,846 INFO L134 CoverageAnalysis]: Checked inductivity of 786 backedges. 625 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2020-11-29 20:57:30,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192896554] [2020-11-29 20:57:30,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:57:30,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:57:30,848 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172218192] [2020-11-29 20:57:30,849 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:57:30,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:57:30,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:57:30,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:57:30,851 INFO L87 Difference]: Start difference. First operand 1072 states and 1250 transitions. Second operand 3 states. [2020-11-29 20:57:32,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:57:32,001 INFO L93 Difference]: Finished difference Result 2676 states and 3172 transitions. [2020-11-29 20:57:32,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:57:32,002 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 527 [2020-11-29 20:57:32,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:57:32,013 INFO L225 Difference]: With dead ends: 2676 [2020-11-29 20:57:32,013 INFO L226 Difference]: Without dead ends: 1784 [2020-11-29 20:57:32,016 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 20:57:32,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2020-11-29 20:57:32,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 1784. [2020-11-29 20:57:32,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1784 states. [2020-11-29 20:57:32,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2033 transitions. [2020-11-29 20:57:32,072 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2033 transitions. Word has length 527 [2020-11-29 20:57:32,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:57:32,074 INFO L481 AbstractCegarLoop]: Abstraction has 1784 states and 2033 transitions. [2020-11-29 20:57:32,074 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:57:32,074 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2033 transitions. [2020-11-29 20:57:32,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2020-11-29 20:57:32,087 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:57:32,088 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:57:32,089 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 20:57:32,089 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:57:32,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:57:32,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1022173948, now seen corresponding path program 1 times [2020-11-29 20:57:32,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:57:32,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129099951] [2020-11-29 20:57:32,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:57:32,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:57:33,185 INFO L134 CoverageAnalysis]: Checked inductivity of 811 backedges. 592 proven. 23 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2020-11-29 20:57:33,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129099951] [2020-11-29 20:57:33,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115872209] [2020-11-29 20:57:33,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce451ef9-f099-4abf-829a-9afc4ca98f14/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 20:57:33,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:57:33,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 710 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 20:57:33,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:57:33,811 INFO L134 CoverageAnalysis]: Checked inductivity of 811 backedges. 227 proven. 0 refuted. 0 times theorem prover too weak. 584 trivial. 0 not checked. [2020-11-29 20:57:33,811 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 20:57:33,812 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-29 20:57:33,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143823165] [2020-11-29 20:57:33,813 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:57:33,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:57:33,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:57:33,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:57:33,815 INFO L87 Difference]: Start difference. First operand 1784 states and 2033 transitions. Second operand 3 states. [2020-11-29 20:57:34,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:57:34,986 INFO L93 Difference]: Finished difference Result 4100 states and 4738 transitions. [2020-11-29 20:57:34,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:57:34,987 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 551 [2020-11-29 20:57:34,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:57:35,004 INFO L225 Difference]: With dead ends: 4100 [2020-11-29 20:57:35,005 INFO L226 Difference]: Without dead ends: 2496 [2020-11-29 20:57:35,008 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 554 GetRequests, 550 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:57:35,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2020-11-29 20:57:35,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2318. [2020-11-29 20:57:35,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2318 states. [2020-11-29 20:57:35,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2618 transitions. [2020-11-29 20:57:35,079 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2618 transitions. Word has length 551 [2020-11-29 20:57:35,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:57:35,088 INFO L481 AbstractCegarLoop]: Abstraction has 2318 states and 2618 transitions. [2020-11-29 20:57:35,088 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:57:35,088 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2618 transitions. [2020-11-29 20:57:35,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 650 [2020-11-29 20:57:35,097 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:57:35,098 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:57:35,313 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 20:57:35,314 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:57:35,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:57:35,314 INFO L82 PathProgramCache]: Analyzing trace with hash -1995008747, now seen corresponding path program 1 times [2020-11-29 20:57:35,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:57:35,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95820191] [2020-11-29 20:57:35,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:57:35,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:57:36,027 INFO L134 CoverageAnalysis]: Checked inductivity of 1284 backedges. 913 proven. 0 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked. [2020-11-29 20:57:36,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95820191] [2020-11-29 20:57:36,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:57:36,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:57:36,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935666018] [2020-11-29 20:57:36,030 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:57:36,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:57:36,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:57:36,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:57:36,032 INFO L87 Difference]: Start difference. First operand 2318 states and 2618 transitions. Second operand 3 states. [2020-11-29 20:57:36,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:57:36,927 INFO L93 Difference]: Finished difference Result 5524 states and 6313 transitions. [2020-11-29 20:57:36,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:57:36,927 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 649 [2020-11-29 20:57:36,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:57:36,949 INFO L225 Difference]: With dead ends: 5524 [2020-11-29 20:57:36,949 INFO L226 Difference]: Without dead ends: 3386 [2020-11-29 20:57:36,953 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 20:57:36,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2020-11-29 20:57:37,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 3208. [2020-11-29 20:57:37,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3208 states. [2020-11-29 20:57:37,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3622 transitions. [2020-11-29 20:57:37,052 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3622 transitions. Word has length 649 [2020-11-29 20:57:37,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:57:37,053 INFO L481 AbstractCegarLoop]: Abstraction has 3208 states and 3622 transitions. [2020-11-29 20:57:37,053 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:57:37,053 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3622 transitions. [2020-11-29 20:57:37,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 720 [2020-11-29 20:57:37,064 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:57:37,065 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-29 20:57:37,066 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 20:57:37,066 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:57:37,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:57:37,067 INFO L82 PathProgramCache]: Analyzing trace with hash 763016868, now seen corresponding path program 1 times [2020-11-29 20:57:37,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:57:37,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320586174] [2020-11-29 20:57:37,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:57:37,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:57:37,991 INFO L134 CoverageAnalysis]: Checked inductivity of 1384 backedges. 1065 proven. 0 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2020-11-29 20:57:37,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320586174] [2020-11-29 20:57:37,991 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:57:37,991 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:57:37,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658202436] [2020-11-29 20:57:37,992 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:57:37,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:57:37,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:57:37,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:57:37,994 INFO L87 Difference]: Start difference. First operand 3208 states and 3622 transitions. Second operand 3 states. [2020-11-29 20:57:38,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:57:38,883 INFO L93 Difference]: Finished difference Result 6948 states and 7872 transitions. [2020-11-29 20:57:38,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:57:38,884 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 719 [2020-11-29 20:57:38,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:57:38,909 INFO L225 Difference]: With dead ends: 6948 [2020-11-29 20:57:38,910 INFO L226 Difference]: Without dead ends: 3920 [2020-11-29 20:57:38,920 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 20:57:38,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2020-11-29 20:57:39,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3742. [2020-11-29 20:57:39,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3742 states. [2020-11-29 20:57:39,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 4202 transitions. [2020-11-29 20:57:39,029 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 4202 transitions. Word has length 719 [2020-11-29 20:57:39,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:57:39,030 INFO L481 AbstractCegarLoop]: Abstraction has 3742 states and 4202 transitions. [2020-11-29 20:57:39,031 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:57:39,031 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 4202 transitions. [2020-11-29 20:57:39,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 744 [2020-11-29 20:57:39,043 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:57:39,044 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-29 20:57:39,044 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-29 20:57:39,044 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:57:39,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:57:39,045 INFO L82 PathProgramCache]: Analyzing trace with hash 1326263912, now seen corresponding path program 1 times [2020-11-29 20:57:39,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:57:39,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552389719] [2020-11-29 20:57:39,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:57:39,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:57:40,315 INFO L134 CoverageAnalysis]: Checked inductivity of 1433 backedges. 864 proven. 23 refuted. 0 times theorem prover too weak. 546 trivial. 0 not checked. [2020-11-29 20:57:40,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552389719] [2020-11-29 20:57:40,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173477788] [2020-11-29 20:57:40,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce451ef9-f099-4abf-829a-9afc4ca98f14/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 20:57:40,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:57:40,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 925 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 20:57:40,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:57:40,943 INFO L134 CoverageAnalysis]: Checked inductivity of 1433 backedges. 687 proven. 0 refuted. 0 times theorem prover too weak. 746 trivial. 0 not checked. [2020-11-29 20:57:40,944 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 20:57:40,944 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-29 20:57:40,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359316491] [2020-11-29 20:57:40,945 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:57:40,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:57:40,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:57:40,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:57:40,947 INFO L87 Difference]: Start difference. First operand 3742 states and 4202 transitions. Second operand 3 states. [2020-11-29 20:57:42,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:57:42,025 INFO L93 Difference]: Finished difference Result 7838 states and 8895 transitions. [2020-11-29 20:57:42,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:57:42,026 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 743 [2020-11-29 20:57:42,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:57:42,052 INFO L225 Difference]: With dead ends: 7838 [2020-11-29 20:57:42,052 INFO L226 Difference]: Without dead ends: 4276 [2020-11-29 20:57:42,057 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 746 GetRequests, 742 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:57:42,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2020-11-29 20:57:42,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2020-11-29 20:57:42,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4276 states. [2020-11-29 20:57:42,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4845 transitions. [2020-11-29 20:57:42,179 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 4845 transitions. Word has length 743 [2020-11-29 20:57:42,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:57:42,180 INFO L481 AbstractCegarLoop]: Abstraction has 4276 states and 4845 transitions. [2020-11-29 20:57:42,180 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:57:42,181 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 4845 transitions. [2020-11-29 20:57:42,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 773 [2020-11-29 20:57:42,193 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:57:42,194 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-29 20:57:42,409 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 20:57:42,410 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:57:42,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:57:42,410 INFO L82 PathProgramCache]: Analyzing trace with hash 1261164493, now seen corresponding path program 1 times [2020-11-29 20:57:42,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:57:42,411 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561593362] [2020-11-29 20:57:42,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:57:42,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:57:44,004 INFO L134 CoverageAnalysis]: Checked inductivity of 1524 backedges. 897 proven. 23 refuted. 0 times theorem prover too weak. 604 trivial. 0 not checked. [2020-11-29 20:57:44,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561593362] [2020-11-29 20:57:44,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [603795095] [2020-11-29 20:57:44,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce451ef9-f099-4abf-829a-9afc4ca98f14/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 20:57:44,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:57:44,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 952 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 20:57:44,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:57:44,817 INFO L134 CoverageAnalysis]: Checked inductivity of 1524 backedges. 284 proven. 0 refuted. 0 times theorem prover too weak. 1240 trivial. 0 not checked. [2020-11-29 20:57:44,817 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 20:57:44,818 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-29 20:57:44,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494310520] [2020-11-29 20:57:44,819 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:57:44,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:57:44,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:57:44,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:57:44,820 INFO L87 Difference]: Start difference. First operand 4276 states and 4845 transitions. Second operand 3 states. [2020-11-29 20:57:45,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:57:45,566 INFO L93 Difference]: Finished difference Result 8372 states and 9509 transitions. [2020-11-29 20:57:45,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:57:45,566 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 772 [2020-11-29 20:57:45,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:57:45,594 INFO L225 Difference]: With dead ends: 8372 [2020-11-29 20:57:45,595 INFO L226 Difference]: Without dead ends: 4276 [2020-11-29 20:57:45,601 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 775 GetRequests, 771 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:57:45,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2020-11-29 20:57:45,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 3742. [2020-11-29 20:57:45,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3742 states. [2020-11-29 20:57:45,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 4211 transitions. [2020-11-29 20:57:45,716 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 4211 transitions. Word has length 772 [2020-11-29 20:57:45,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:57:45,717 INFO L481 AbstractCegarLoop]: Abstraction has 3742 states and 4211 transitions. [2020-11-29 20:57:45,717 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:57:45,718 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 4211 transitions. [2020-11-29 20:57:45,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 858 [2020-11-29 20:57:45,734 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:57:45,735 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:57:45,949 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 20:57:45,950 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:57:45,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:57:45,950 INFO L82 PathProgramCache]: Analyzing trace with hash 464715118, now seen corresponding path program 1 times [2020-11-29 20:57:45,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:57:45,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370184329] [2020-11-29 20:57:45,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:57:46,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:57:47,435 INFO L134 CoverageAnalysis]: Checked inductivity of 1975 backedges. 1046 proven. 23 refuted. 0 times theorem prover too weak. 906 trivial. 0 not checked. [2020-11-29 20:57:47,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370184329] [2020-11-29 20:57:47,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721777858] [2020-11-29 20:57:47,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce451ef9-f099-4abf-829a-9afc4ca98f14/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 20:57:47,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:57:47,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 1058 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 20:57:47,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:57:48,453 INFO L134 CoverageAnalysis]: Checked inductivity of 1975 backedges. 873 proven. 0 refuted. 0 times theorem prover too weak. 1102 trivial. 0 not checked. [2020-11-29 20:57:48,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 20:57:48,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-29 20:57:48,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673189881] [2020-11-29 20:57:48,455 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:57:48,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:57:48,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:57:48,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:57:48,456 INFO L87 Difference]: Start difference. First operand 3742 states and 4211 transitions. Second operand 3 states. [2020-11-29 20:57:49,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:57:49,252 INFO L93 Difference]: Finished difference Result 8192 states and 9263 transitions. [2020-11-29 20:57:49,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:57:49,253 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 857 [2020-11-29 20:57:49,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:57:49,254 INFO L225 Difference]: With dead ends: 8192 [2020-11-29 20:57:49,254 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 20:57:49,262 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 860 GetRequests, 856 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:57:49,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 20:57:49,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 20:57:49,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 20:57:49,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 20:57:49,263 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 857 [2020-11-29 20:57:49,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:57:49,264 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:57:49,264 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:57:49,264 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 20:57:49,264 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 20:57:49,464 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-11-29 20:57:49,467 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 20:57:49,752 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 29 [2020-11-29 20:57:49,926 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 29 [2020-11-29 20:57:49,930 INFO L274 CegarLoopResult]: For program point L762(lines 762 880) no Hoare annotation was computed. [2020-11-29 20:57:49,930 INFO L274 CegarLoopResult]: For program point L895(line 895) no Hoare annotation was computed. [2020-11-29 20:57:49,931 INFO L274 CegarLoopResult]: For program point L829(lines 829 880) no Hoare annotation was computed. [2020-11-29 20:57:49,931 INFO L274 CegarLoopResult]: For program point L631(lines 631 880) no Hoare annotation was computed. [2020-11-29 20:57:49,931 INFO L274 CegarLoopResult]: For program point L565(lines 565 880) no Hoare annotation was computed. [2020-11-29 20:57:49,931 INFO L274 CegarLoopResult]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,931 INFO L274 CegarLoopResult]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,931 INFO L274 CegarLoopResult]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,931 INFO L274 CegarLoopResult]: For program point L698(lines 698 880) no Hoare annotation was computed. [2020-11-29 20:57:49,931 INFO L274 CegarLoopResult]: For program point L500(lines 500 880) no Hoare annotation was computed. [2020-11-29 20:57:49,931 INFO L274 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-11-29 20:57:49,931 INFO L274 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-11-29 20:57:49,931 INFO L274 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-11-29 20:57:49,932 INFO L274 CegarLoopResult]: For program point L369(lines 369 880) no Hoare annotation was computed. [2020-11-29 20:57:49,932 INFO L274 CegarLoopResult]: For program point L303(lines 303 880) no Hoare annotation was computed. [2020-11-29 20:57:49,932 INFO L274 CegarLoopResult]: For program point L436(lines 436 880) no Hoare annotation was computed. [2020-11-29 20:57:49,932 INFO L274 CegarLoopResult]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,932 INFO L274 CegarLoopResult]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,932 INFO L274 CegarLoopResult]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,932 INFO L274 CegarLoopResult]: For program point L239(lines 239 880) no Hoare annotation was computed. [2020-11-29 20:57:49,932 INFO L274 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2020-11-29 20:57:49,932 INFO L274 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-11-29 20:57:49,932 INFO L274 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-11-29 20:57:49,932 INFO L274 CegarLoopResult]: For program point L768(lines 768 880) no Hoare annotation was computed. [2020-11-29 20:57:49,932 INFO L274 CegarLoopResult]: For program point L636(lines 636 880) no Hoare annotation was computed. [2020-11-29 20:57:49,932 INFO L274 CegarLoopResult]: For program point L835(lines 835 880) no Hoare annotation was computed. [2020-11-29 20:57:49,933 INFO L274 CegarLoopResult]: For program point L571(lines 571 880) no Hoare annotation was computed. [2020-11-29 20:57:49,933 INFO L274 CegarLoopResult]: For program point L505(lines 505 880) no Hoare annotation was computed. [2020-11-29 20:57:49,933 INFO L274 CegarLoopResult]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,933 INFO L274 CegarLoopResult]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,933 INFO L274 CegarLoopResult]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,933 INFO L274 CegarLoopResult]: For program point L704(lines 704 880) no Hoare annotation was computed. [2020-11-29 20:57:49,933 INFO L274 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2020-11-29 20:57:49,933 INFO L274 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-11-29 20:57:49,933 INFO L274 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-11-29 20:57:49,933 INFO L274 CegarLoopResult]: For program point L309(lines 309 880) no Hoare annotation was computed. [2020-11-29 20:57:49,933 INFO L274 CegarLoopResult]: For program point L442(lines 442 880) no Hoare annotation was computed. [2020-11-29 20:57:49,933 INFO L274 CegarLoopResult]: For program point L376(lines 376 880) no Hoare annotation was computed. [2020-11-29 20:57:49,933 INFO L274 CegarLoopResult]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,933 INFO L274 CegarLoopResult]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,933 INFO L274 CegarLoopResult]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,933 INFO L274 CegarLoopResult]: For program point L245(lines 245 880) no Hoare annotation was computed. [2020-11-29 20:57:49,933 INFO L274 CegarLoopResult]: For program point L179(line 179) no Hoare annotation was computed. [2020-11-29 20:57:49,934 INFO L274 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2020-11-29 20:57:49,934 INFO L274 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-11-29 20:57:49,934 INFO L274 CegarLoopResult]: For program point L774(lines 774 880) no Hoare annotation was computed. [2020-11-29 20:57:49,934 INFO L274 CegarLoopResult]: For program point L642(lines 642 880) no Hoare annotation was computed. [2020-11-29 20:57:49,934 INFO L274 CegarLoopResult]: For program point L510(lines 510 880) no Hoare annotation was computed. [2020-11-29 20:57:49,934 INFO L274 CegarLoopResult]: For program point L841(lines 841 880) no Hoare annotation was computed. [2020-11-29 20:57:49,934 INFO L274 CegarLoopResult]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,934 INFO L274 CegarLoopResult]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,934 INFO L274 CegarLoopResult]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,934 INFO L274 CegarLoopResult]: For program point L710(lines 710 880) no Hoare annotation was computed. [2020-11-29 20:57:49,934 INFO L274 CegarLoopResult]: For program point L578(lines 578 880) no Hoare annotation was computed. [2020-11-29 20:57:49,934 INFO L274 CegarLoopResult]: For program point L182(line 182) no Hoare annotation was computed. [2020-11-29 20:57:49,934 INFO L274 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-11-29 20:57:49,934 INFO L274 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-11-29 20:57:49,934 INFO L274 CegarLoopResult]: For program point L315(lines 315 880) no Hoare annotation was computed. [2020-11-29 20:57:49,934 INFO L274 CegarLoopResult]: For program point L448(lines 448 880) no Hoare annotation was computed. [2020-11-29 20:57:49,934 INFO L274 CegarLoopResult]: For program point L382(lines 382 880) no Hoare annotation was computed. [2020-11-29 20:57:49,934 INFO L274 CegarLoopResult]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,934 INFO L274 CegarLoopResult]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,934 INFO L274 CegarLoopResult]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,934 INFO L274 CegarLoopResult]: For program point L251(lines 251 880) no Hoare annotation was computed. [2020-11-29 20:57:49,935 INFO L274 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-11-29 20:57:49,935 INFO L274 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2020-11-29 20:57:49,935 INFO L274 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-11-29 20:57:49,935 INFO L274 CegarLoopResult]: For program point L648(lines 648 880) no Hoare annotation was computed. [2020-11-29 20:57:49,935 INFO L274 CegarLoopResult]: For program point L516(lines 516 880) no Hoare annotation was computed. [2020-11-29 20:57:49,935 INFO L274 CegarLoopResult]: For program point L847(lines 847 880) no Hoare annotation was computed. [2020-11-29 20:57:49,935 INFO L274 CegarLoopResult]: For program point L781(lines 781 880) no Hoare annotation was computed. [2020-11-29 20:57:49,935 INFO L274 CegarLoopResult]: For program point L583(lines 583 880) no Hoare annotation was computed. [2020-11-29 20:57:49,935 INFO L274 CegarLoopResult]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,935 INFO L274 CegarLoopResult]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,935 INFO L274 CegarLoopResult]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,935 INFO L274 CegarLoopResult]: For program point L716(lines 716 880) no Hoare annotation was computed. [2020-11-29 20:57:49,935 INFO L274 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2020-11-29 20:57:49,935 INFO L274 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-11-29 20:57:49,935 INFO L274 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2020-11-29 20:57:49,935 INFO L274 CegarLoopResult]: For program point L321(lines 321 880) no Hoare annotation was computed. [2020-11-29 20:57:49,935 INFO L274 CegarLoopResult]: For program point L454(lines 454 880) no Hoare annotation was computed. [2020-11-29 20:57:49,935 INFO L274 CegarLoopResult]: For program point L388(lines 388 880) no Hoare annotation was computed. [2020-11-29 20:57:49,935 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 20:57:49,935 INFO L274 CegarLoopResult]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,935 INFO L274 CegarLoopResult]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,936 INFO L274 CegarLoopResult]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,936 INFO L274 CegarLoopResult]: For program point L257(lines 257 880) no Hoare annotation was computed. [2020-11-29 20:57:49,936 INFO L274 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2020-11-29 20:57:49,936 INFO L274 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-11-29 20:57:49,936 INFO L274 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-11-29 20:57:49,936 INFO L274 CegarLoopResult]: For program point L852(lines 852 880) no Hoare annotation was computed. [2020-11-29 20:57:49,936 INFO L274 CegarLoopResult]: For program point L654(lines 654 880) no Hoare annotation was computed. [2020-11-29 20:57:49,936 INFO L274 CegarLoopResult]: For program point L522(lines 522 880) no Hoare annotation was computed. [2020-11-29 20:57:49,936 INFO L274 CegarLoopResult]: For program point L787(lines 787 880) no Hoare annotation was computed. [2020-11-29 20:57:49,936 INFO L274 CegarLoopResult]: For program point L589(lines 589 880) no Hoare annotation was computed. [2020-11-29 20:57:49,936 INFO L274 CegarLoopResult]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,936 INFO L274 CegarLoopResult]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,936 INFO L274 CegarLoopResult]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,936 INFO L274 CegarLoopResult]: For program point L722(lines 722 880) no Hoare annotation was computed. [2020-11-29 20:57:49,936 INFO L274 CegarLoopResult]: For program point L194(line 194) no Hoare annotation was computed. [2020-11-29 20:57:49,936 INFO L274 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2020-11-29 20:57:49,936 INFO L274 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-11-29 20:57:49,936 INFO L274 CegarLoopResult]: For program point L459(lines 459 880) no Hoare annotation was computed. [2020-11-29 20:57:49,936 INFO L274 CegarLoopResult]: For program point L327(lines 327 880) no Hoare annotation was computed. [2020-11-29 20:57:49,936 INFO L274 CegarLoopResult]: For program point L394(lines 394 880) no Hoare annotation was computed. [2020-11-29 20:57:49,936 INFO L274 CegarLoopResult]: For program point L262(lines 262 880) no Hoare annotation was computed. [2020-11-29 20:57:49,937 INFO L274 CegarLoopResult]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,937 INFO L274 CegarLoopResult]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,937 INFO L274 CegarLoopResult]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,937 INFO L274 CegarLoopResult]: For program point L197(line 197) no Hoare annotation was computed. [2020-11-29 20:57:49,937 INFO L274 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2020-11-29 20:57:49,937 INFO L274 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-11-29 20:57:49,937 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 20:57:49,937 INFO L274 CegarLoopResult]: For program point L858(lines 858 880) no Hoare annotation was computed. [2020-11-29 20:57:49,937 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-29 20:57:49,937 INFO L274 CegarLoopResult]: For program point L660(lines 660 880) no Hoare annotation was computed. [2020-11-29 20:57:49,937 INFO L274 CegarLoopResult]: For program point L528(lines 528 880) no Hoare annotation was computed. [2020-11-29 20:57:49,940 INFO L274 CegarLoopResult]: For program point L793(lines 793 880) no Hoare annotation was computed. [2020-11-29 20:57:49,940 INFO L274 CegarLoopResult]: For program point L595(lines 595 880) no Hoare annotation was computed. [2020-11-29 20:57:49,941 INFO L274 CegarLoopResult]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,941 INFO L274 CegarLoopResult]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,941 INFO L274 CegarLoopResult]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,941 INFO L274 CegarLoopResult]: For program point L728(lines 728 880) no Hoare annotation was computed. [2020-11-29 20:57:49,941 INFO L274 CegarLoopResult]: For program point L464(lines 464 880) no Hoare annotation was computed. [2020-11-29 20:57:49,942 INFO L274 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-11-29 20:57:49,942 INFO L274 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-11-29 20:57:49,942 INFO L274 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-11-29 20:57:49,942 INFO L274 CegarLoopResult]: For program point L333(lines 333 880) no Hoare annotation was computed. [2020-11-29 20:57:49,942 INFO L274 CegarLoopResult]: For program point L400(lines 400 880) no Hoare annotation was computed. [2020-11-29 20:57:49,942 INFO L274 CegarLoopResult]: For program point L268(lines 268 880) no Hoare annotation was computed. [2020-11-29 20:57:49,942 INFO L274 CegarLoopResult]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,943 INFO L274 CegarLoopResult]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,943 INFO L274 CegarLoopResult]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,943 INFO L274 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-11-29 20:57:49,943 INFO L274 CegarLoopResult]: For program point L137(line 137) no Hoare annotation was computed. [2020-11-29 20:57:49,943 INFO L274 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-11-29 20:57:49,943 INFO L274 CegarLoopResult]: For program point L864(lines 864 880) no Hoare annotation was computed. [2020-11-29 20:57:49,944 INFO L274 CegarLoopResult]: For program point L666(lines 666 880) no Hoare annotation was computed. [2020-11-29 20:57:49,944 INFO L274 CegarLoopResult]: For program point L534(lines 534 880) no Hoare annotation was computed. [2020-11-29 20:57:49,944 INFO L274 CegarLoopResult]: For program point L799(lines 799 880) no Hoare annotation was computed. [2020-11-29 20:57:49,944 INFO L274 CegarLoopResult]: For program point L601(lines 601 880) no Hoare annotation was computed. [2020-11-29 20:57:49,944 INFO L274 CegarLoopResult]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,944 INFO L274 CegarLoopResult]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,944 INFO L274 CegarLoopResult]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,945 INFO L274 CegarLoopResult]: For program point L734(lines 734 880) no Hoare annotation was computed. [2020-11-29 20:57:49,945 INFO L274 CegarLoopResult]: For program point L470(lines 470 880) no Hoare annotation was computed. [2020-11-29 20:57:49,945 INFO L274 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2020-11-29 20:57:49,945 INFO L274 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-11-29 20:57:49,945 INFO L274 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-11-29 20:57:49,945 INFO L274 CegarLoopResult]: For program point L339(lines 339 880) no Hoare annotation was computed. [2020-11-29 20:57:49,946 INFO L274 CegarLoopResult]: For program point L406(lines 406 880) no Hoare annotation was computed. [2020-11-29 20:57:49,946 INFO L274 CegarLoopResult]: For program point L274(lines 274 880) no Hoare annotation was computed. [2020-11-29 20:57:49,946 INFO L274 CegarLoopResult]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,946 INFO L274 CegarLoopResult]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,946 INFO L274 CegarLoopResult]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,946 INFO L274 CegarLoopResult]: For program point L869(lines 869 880) no Hoare annotation was computed. [2020-11-29 20:57:49,947 INFO L274 CegarLoopResult]: For program point L209(line 209) no Hoare annotation was computed. [2020-11-29 20:57:49,947 INFO L274 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-11-29 20:57:49,947 INFO L274 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2020-11-29 20:57:49,947 INFO L274 CegarLoopResult]: For program point L672(lines 672 880) no Hoare annotation was computed. [2020-11-29 20:57:49,947 INFO L274 CegarLoopResult]: For program point L540(lines 540 880) no Hoare annotation was computed. [2020-11-29 20:57:49,947 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-29 20:57:49,947 INFO L274 CegarLoopResult]: For program point L805(lines 805 880) no Hoare annotation was computed. [2020-11-29 20:57:49,948 INFO L274 CegarLoopResult]: For program point L607(lines 607 880) no Hoare annotation was computed. [2020-11-29 20:57:49,948 INFO L274 CegarLoopResult]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,948 INFO L274 CegarLoopResult]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,948 INFO L274 CegarLoopResult]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,948 INFO L274 CegarLoopResult]: For program point L740(lines 740 880) no Hoare annotation was computed. [2020-11-29 20:57:49,948 INFO L274 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-11-29 20:57:49,948 INFO L274 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2020-11-29 20:57:49,949 INFO L274 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-11-29 20:57:49,949 INFO L274 CegarLoopResult]: For program point L477(lines 477 880) no Hoare annotation was computed. [2020-11-29 20:57:49,949 INFO L274 CegarLoopResult]: For program point L345(lines 345 880) no Hoare annotation was computed. [2020-11-29 20:57:49,949 INFO L274 CegarLoopResult]: For program point L279(lines 279 880) no Hoare annotation was computed. [2020-11-29 20:57:49,949 INFO L274 CegarLoopResult]: For program point L412(lines 412 880) no Hoare annotation was computed. [2020-11-29 20:57:49,949 INFO L274 CegarLoopResult]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,950 INFO L274 CegarLoopResult]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,950 INFO L274 CegarLoopResult]: For program point L875(lines 875 880) no Hoare annotation was computed. [2020-11-29 20:57:49,950 INFO L274 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2020-11-29 20:57:49,950 INFO L274 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-11-29 20:57:49,950 INFO L274 CegarLoopResult]: For program point L678(lines 678 880) no Hoare annotation was computed. [2020-11-29 20:57:49,950 INFO L274 CegarLoopResult]: For program point L546(lines 546 880) no Hoare annotation was computed. [2020-11-29 20:57:49,951 INFO L274 CegarLoopResult]: For program point L811(lines 811 880) no Hoare annotation was computed. [2020-11-29 20:57:49,951 INFO L274 CegarLoopResult]: For program point L745(lines 745 880) no Hoare annotation was computed. [2020-11-29 20:57:49,951 INFO L274 CegarLoopResult]: For program point L613(lines 613 880) no Hoare annotation was computed. [2020-11-29 20:57:49,951 INFO L274 CegarLoopResult]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,951 INFO L274 CegarLoopResult]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,951 INFO L274 CegarLoopResult]: For program point L482(lines 482 880) no Hoare annotation was computed. [2020-11-29 20:57:49,951 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 20:57:49,952 INFO L274 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-11-29 20:57:49,952 INFO L274 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-11-29 20:57:49,952 INFO L274 CegarLoopResult]: For program point L351(lines 351 880) no Hoare annotation was computed. [2020-11-29 20:57:49,952 INFO L274 CegarLoopResult]: For program point L285(lines 285 880) no Hoare annotation was computed. [2020-11-29 20:57:49,952 INFO L274 CegarLoopResult]: For program point L418(lines 418 880) no Hoare annotation was computed. [2020-11-29 20:57:49,952 INFO L274 CegarLoopResult]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,953 INFO L274 CegarLoopResult]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,953 INFO L270 CegarLoopResult]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse3 (< 80 ~a12~0)) (.cse0 (<= ~a24~0 1)) (.cse4 (<= ~a12~0 11)) (.cse1 (<= ~a15~0 8)) (.cse2 (not (= 7 ~a15~0))) (.cse5 (<= ~a21~0 8))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse2) (and .cse0 .cse3) (and .cse4 (<= 10 ~a21~0) .cse2) (and .cse0 .cse4 .cse1) (and (<= 7 ~a21~0) .cse0 .cse1) (and .cse4 .cse1 .cse2 .cse5) (and (<= 8 ~a21~0) .cse2 .cse5))) [2020-11-29 20:57:49,953 INFO L274 CegarLoopResult]: For program point L551(lines 551 880) no Hoare annotation was computed. [2020-11-29 20:57:49,954 INFO L274 CegarLoopResult]: For program point L221(lines 221 880) no Hoare annotation was computed. [2020-11-29 20:57:49,954 INFO L274 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-11-29 20:57:49,954 INFO L274 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-11-29 20:57:49,954 INFO L274 CegarLoopResult]: For program point L684(lines 684 880) no Hoare annotation was computed. [2020-11-29 20:57:49,954 INFO L274 CegarLoopResult]: For program point L817(lines 817 880) no Hoare annotation was computed. [2020-11-29 20:57:49,954 INFO L274 CegarLoopResult]: For program point L751(lines 751 880) no Hoare annotation was computed. [2020-11-29 20:57:49,955 INFO L274 CegarLoopResult]: For program point L619(lines 619 880) no Hoare annotation was computed. [2020-11-29 20:57:49,955 INFO L274 CegarLoopResult]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,955 INFO L274 CegarLoopResult]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,955 INFO L277 CegarLoopResult]: At program point L884(lines 884 900) the Hoare annotation is: true [2020-11-29 20:57:49,955 INFO L274 CegarLoopResult]: For program point L488(lines 488 880) no Hoare annotation was computed. [2020-11-29 20:57:49,955 INFO L274 CegarLoopResult]: For program point L290(lines 290 880) no Hoare annotation was computed. [2020-11-29 20:57:49,955 INFO L274 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-11-29 20:57:49,956 INFO L274 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-11-29 20:57:49,956 INFO L274 CegarLoopResult]: For program point L687(lines 687 880) no Hoare annotation was computed. [2020-11-29 20:57:49,956 INFO L274 CegarLoopResult]: For program point L357(lines 357 880) no Hoare annotation was computed. [2020-11-29 20:57:49,956 INFO L274 CegarLoopResult]: For program point L424(lines 424 880) no Hoare annotation was computed. [2020-11-29 20:57:49,956 INFO L274 CegarLoopResult]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,956 INFO L274 CegarLoopResult]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,957 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 20:57:49,957 INFO L274 CegarLoopResult]: For program point L557(lines 557 880) no Hoare annotation was computed. [2020-11-29 20:57:49,957 INFO L274 CegarLoopResult]: For program point L227(lines 227 880) no Hoare annotation was computed. [2020-11-29 20:57:49,957 INFO L274 CegarLoopResult]: For program point L161(line 161) no Hoare annotation was computed. [2020-11-29 20:57:49,957 INFO L274 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-11-29 20:57:49,958 INFO L274 CegarLoopResult]: For program point L757(lines 757 880) no Hoare annotation was computed. [2020-11-29 20:57:49,958 INFO L274 CegarLoopResult]: For program point L625(lines 625 880) no Hoare annotation was computed. [2020-11-29 20:57:49,958 INFO L274 CegarLoopResult]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,958 INFO L274 CegarLoopResult]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,958 INFO L274 CegarLoopResult]: For program point L31(lines 31 33) no Hoare annotation was computed. [2020-11-29 20:57:49,958 INFO L274 CegarLoopResult]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,958 INFO L274 CegarLoopResult]: For program point L824(lines 824 880) no Hoare annotation was computed. [2020-11-29 20:57:49,959 INFO L270 CegarLoopResult]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse3 (< 80 ~a12~0)) (.cse0 (<= ~a24~0 1)) (.cse4 (<= ~a12~0 11)) (.cse1 (<= ~a15~0 8)) (.cse2 (not (= 7 ~a15~0))) (.cse5 (<= ~a21~0 8))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse2) (and .cse0 .cse3) (and .cse4 (<= 10 ~a21~0) .cse2) (and .cse0 .cse4 .cse1) (and (<= 7 ~a21~0) .cse0 .cse1) (and .cse4 .cse1 .cse2 .cse5) (and (<= 8 ~a21~0) .cse2 .cse5))) [2020-11-29 20:57:49,959 INFO L274 CegarLoopResult]: For program point L494(lines 494 880) no Hoare annotation was computed. [2020-11-29 20:57:49,959 INFO L274 CegarLoopResult]: For program point L296(lines 296 880) no Hoare annotation was computed. [2020-11-29 20:57:49,959 INFO L274 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-11-29 20:57:49,959 INFO L274 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-11-29 20:57:49,960 INFO L274 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-11-29 20:57:49,960 INFO L274 CegarLoopResult]: For program point L693(lines 693 880) no Hoare annotation was computed. [2020-11-29 20:57:49,960 INFO L274 CegarLoopResult]: For program point L363(lines 363 880) no Hoare annotation was computed. [2020-11-29 20:57:49,960 INFO L274 CegarLoopResult]: For program point L562(lines 562 880) no Hoare annotation was computed. [2020-11-29 20:57:49,960 INFO L274 CegarLoopResult]: For program point L430(lines 430 880) no Hoare annotation was computed. [2020-11-29 20:57:49,960 INFO L274 CegarLoopResult]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,961 INFO L274 CegarLoopResult]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,961 INFO L274 CegarLoopResult]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 20:57:49,961 INFO L274 CegarLoopResult]: For program point L233(lines 233 880) no Hoare annotation was computed. [2020-11-29 20:57:49,961 INFO L274 CegarLoopResult]: For program point L167(line 167) no Hoare annotation was computed. [2020-11-29 20:57:49,961 INFO L274 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-11-29 20:57:49,961 INFO L274 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-11-29 20:57:50,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 08:57:50 BoogieIcfgContainer [2020-11-29 20:57:50,016 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 20:57:50,017 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:57:50,017 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:57:50,018 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:57:50,018 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:57:19" (3/4) ... [2020-11-29 20:57:50,022 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 20:57:50,061 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-29 20:57:50,074 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 20:57:50,076 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 20:57:50,078 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 20:57:50,308 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ce451ef9-f099-4abf-829a-9afc4ca98f14/bin/uautomizer/witness.graphml [2020-11-29 20:57:50,309 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:57:50,311 INFO L168 Benchmark]: Toolchain (without parser) took 34498.80 ms. Allocated memory was 90.2 MB in the beginning and 1.6 GB in the end (delta: 1.5 GB). Free memory was 59.9 MB in the beginning and 944.2 MB in the end (delta: -884.3 MB). Peak memory consumption was 586.9 MB. Max. memory is 16.1 GB. [2020-11-29 20:57:50,312 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 90.2 MB. Free memory is still 47.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:57:50,313 INFO L168 Benchmark]: CACSL2BoogieTranslator took 889.09 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 59.6 MB in the beginning and 67.3 MB in the end (delta: -7.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 20:57:50,313 INFO L168 Benchmark]: Boogie Procedure Inliner took 154.95 ms. Allocated memory is still 111.1 MB. Free memory was 67.3 MB in the beginning and 57.4 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:57:50,314 INFO L168 Benchmark]: Boogie Preprocessor took 155.37 ms. Allocated memory is still 111.1 MB. Free memory was 57.4 MB in the beginning and 51.0 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-29 20:57:50,314 INFO L168 Benchmark]: RCFGBuilder took 2234.13 ms. Allocated memory is still 111.1 MB. Free memory was 51.0 MB in the beginning and 56.4 MB in the end (delta: -5.4 MB). Peak memory consumption was 26.9 MB. Max. memory is 16.1 GB. [2020-11-29 20:57:50,315 INFO L168 Benchmark]: TraceAbstraction took 30756.73 ms. Allocated memory was 111.1 MB in the beginning and 1.6 GB in the end (delta: 1.4 GB). Free memory was 55.6 MB in the beginning and 964.1 MB in the end (delta: -908.5 MB). Peak memory consumption was 539.3 MB. Max. memory is 16.1 GB. [2020-11-29 20:57:50,315 INFO L168 Benchmark]: Witness Printer took 292.78 ms. Allocated memory is still 1.6 GB. Free memory was 964.1 MB in the beginning and 944.2 MB in the end (delta: 19.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-29 20:57:50,324 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 90.2 MB. Free memory is still 47.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 889.09 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 59.6 MB in the beginning and 67.3 MB in the end (delta: -7.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 154.95 ms. Allocated memory is still 111.1 MB. Free memory was 67.3 MB in the beginning and 57.4 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 155.37 ms. Allocated memory is still 111.1 MB. Free memory was 57.4 MB in the beginning and 51.0 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2234.13 ms. Allocated memory is still 111.1 MB. Free memory was 51.0 MB in the beginning and 56.4 MB in the end (delta: -5.4 MB). Peak memory consumption was 26.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 30756.73 ms. Allocated memory was 111.1 MB in the beginning and 1.6 GB in the end (delta: 1.4 GB). Free memory was 55.6 MB in the beginning and 964.1 MB in the end (delta: -908.5 MB). Peak memory consumption was 539.3 MB. Max. memory is 16.1 GB. * Witness Printer took 292.78 ms. Allocated memory is still 1.6 GB. Free memory was 964.1 MB in the beginning and 944.2 MB in the end (delta: 19.9 MB). Peak memory consumption was 21.0 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: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((((((a24 <= 1 && a15 <= 8) && !(7 == a15)) || (80 < a12 && !(7 == a15))) || (a24 <= 1 && 80 < a12)) || ((a12 <= 11 && 10 <= a21) && !(7 == a15))) || ((a24 <= 1 && a12 <= 11) && a15 <= 8)) || ((7 <= a21 && a24 <= 1) && a15 <= 8)) || (((a12 <= 11 && a15 <= 8) && !(7 == a15)) && a21 <= 8)) || ((8 <= a21 && !(7 == a15)) && a21 <= 8) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((((a24 <= 1 && a15 <= 8) && !(7 == a15)) || (80 < a12 && !(7 == a15))) || (a24 <= 1 && 80 < a12)) || ((a12 <= 11 && 10 <= a21) && !(7 == a15))) || ((a24 <= 1 && a12 <= 11) && a15 <= 8)) || ((7 <= a21 && a24 <= 1) && a15 <= 8)) || (((a12 <= 11 && a15 <= 8) && !(7 == a15)) && a21 <= 8)) || ((8 <= a21 && !(7 == a15)) && a21 <= 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 246 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 30.1s, OverallIterations: 11, TraceHistogramMax: 7, AutomataDifference: 13.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1178 SDtfs, 1228 SDslu, 56 SDs, 0 SdLazy, 5556 SolverSat, 1284 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3318 GetRequests, 3288 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4276occurred 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: 0.8s AutomataMinimizationTime, 11 MinimizatonAttempts, 1246 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 60 NumberOfFragments, 167 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1026 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 222 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 5.5s InterpolantComputationTime, 8959 NumberOfCodeBlocks, 8959 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 8943 ConstructedInterpolants, 0 QuantifiedInterpolants, 16893699 SizeOfPredicates, 3 NumberOfNonLiveVariables, 4138 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 16 InterpolantComputations, 11 PerfectInterpolantSequences, 15998/16220 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...