./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label17.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_d77b4732-e41a-42f9-93f8-cd95cf5789e7/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d77b4732-e41a-42f9-93f8-cd95cf5789e7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d77b4732-e41a-42f9-93f8-cd95cf5789e7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d77b4732-e41a-42f9-93f8-cd95cf5789e7/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label17.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d77b4732-e41a-42f9-93f8-cd95cf5789e7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d77b4732-e41a-42f9-93f8-cd95cf5789e7/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 49dac4ca9ee8c434b3fbcc0dc92d48d94344e2f3 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:02:46,817 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:02:46,825 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:02:46,889 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:02:46,890 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:02:46,892 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:02:46,894 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:02:46,897 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:02:46,899 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:02:46,901 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:02:46,902 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:02:46,904 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:02:46,905 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:02:46,906 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:02:46,908 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:02:46,910 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:02:46,911 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:02:46,913 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:02:46,915 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:02:46,918 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:02:46,921 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:02:46,923 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:02:46,925 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:02:46,926 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:02:46,930 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:02:46,931 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:02:46,931 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:02:46,933 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:02:46,933 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:02:46,935 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:02:46,935 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:02:46,937 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:02:46,938 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:02:46,939 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:02:46,941 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:02:46,941 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:02:46,942 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:02:46,943 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:02:46,943 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:02:46,945 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:02:46,946 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:02:46,947 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d77b4732-e41a-42f9-93f8-cd95cf5789e7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:02:46,974 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:02:46,975 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:02:46,976 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:02:46,977 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:02:46,977 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:02:46,978 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:02:46,978 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:02:46,978 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:02:46,978 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:02:46,979 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:02:46,979 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:02:46,979 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:02:46,980 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:02:46,980 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:02:46,980 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:02:46,980 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:02:46,981 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:02:46,981 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:02:46,981 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:02:46,982 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:02:46,982 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:02:46,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:02:46,983 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:02:46,983 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:02:46,983 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:02:46,983 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:02:46,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:02:46,984 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:02:46,984 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:02:46,985 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_d77b4732-e41a-42f9-93f8-cd95cf5789e7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d77b4732-e41a-42f9-93f8-cd95cf5789e7/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 49dac4ca9ee8c434b3fbcc0dc92d48d94344e2f3 [2020-11-28 03:02:47,260 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:02:47,304 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:02:47,309 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:02:47,311 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:02:47,312 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:02:47,314 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d77b4732-e41a-42f9-93f8-cd95cf5789e7/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem14_label17.c [2020-11-28 03:02:47,418 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d77b4732-e41a-42f9-93f8-cd95cf5789e7/bin/uautomizer/data/12b274398/7903eac52e87481494348042202981eb/FLAGb648ad3ba [2020-11-28 03:02:48,045 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:02:48,048 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d77b4732-e41a-42f9-93f8-cd95cf5789e7/sv-benchmarks/c/eca-rers2012/Problem14_label17.c [2020-11-28 03:02:48,071 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d77b4732-e41a-42f9-93f8-cd95cf5789e7/bin/uautomizer/data/12b274398/7903eac52e87481494348042202981eb/FLAGb648ad3ba [2020-11-28 03:02:48,241 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d77b4732-e41a-42f9-93f8-cd95cf5789e7/bin/uautomizer/data/12b274398/7903eac52e87481494348042202981eb [2020-11-28 03:02:48,244 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:02:48,245 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:02:48,247 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:02:48,247 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:02:48,251 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:02:48,252 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:02:48" (1/1) ... [2020-11-28 03:02:48,254 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@aed9511 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:48, skipping insertion in model container [2020-11-28 03:02:48,255 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:02:48" (1/1) ... [2020-11-28 03:02:48,263 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:02:48,311 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:02:48,870 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:02:48,895 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:02:49,167 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:02:49,187 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:02:49,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:49 WrapperNode [2020-11-28 03:02:49,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:02:49,190 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:02:49,190 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:02:49,191 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:02:49,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:49" (1/1) ... [2020-11-28 03:02:49,233 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:49" (1/1) ... [2020-11-28 03:02:49,345 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:02:49,345 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:02:49,345 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:02:49,345 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:02:49,353 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:49" (1/1) ... [2020-11-28 03:02:49,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:49" (1/1) ... [2020-11-28 03:02:49,360 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:49" (1/1) ... [2020-11-28 03:02:49,360 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:49" (1/1) ... [2020-11-28 03:02:49,397 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:49" (1/1) ... [2020-11-28 03:02:49,412 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:49" (1/1) ... [2020-11-28 03:02:49,436 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:49" (1/1) ... [2020-11-28 03:02:49,453 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:02:49,454 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:02:49,454 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:02:49,454 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:02:49,456 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d77b4732-e41a-42f9-93f8-cd95cf5789e7/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 [2020-11-28 03:02:49,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:02:49,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:02:49,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:02:49,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:02:51,343 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:02:51,344 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 03:02:51,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:02:51 BoogieIcfgContainer [2020-11-28 03:02:51,348 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:02:51,352 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:02:51,353 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:02:51,357 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:02:51,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:02:48" (1/3) ... [2020-11-28 03:02:51,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f8d99af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:02:51, skipping insertion in model container [2020-11-28 03:02:51,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:49" (2/3) ... [2020-11-28 03:02:51,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f8d99af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:02:51, skipping insertion in model container [2020-11-28 03:02:51,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:02:51" (3/3) ... [2020-11-28 03:02:51,360 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label17.c [2020-11-28 03:02:51,376 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:02:51,380 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:02:51,393 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:02:51,423 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:02:51,423 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:02:51,424 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:02:51,424 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:02:51,424 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:02:51,424 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:02:51,424 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:02:51,425 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:02:51,447 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states. [2020-11-28 03:02:51,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-11-28 03:02:51,458 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:02:51,459 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:02:51,459 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:02:51,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:02:51,467 INFO L82 PathProgramCache]: Analyzing trace with hash -2158734, now seen corresponding path program 1 times [2020-11-28 03:02:51,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:02:51,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278494382] [2020-11-28 03:02:51,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:02:51,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:51,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:02:51,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278494382] [2020-11-28 03:02:51,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:02:51,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:02:51,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293782816] [2020-11-28 03:02:51,865 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:02:51,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:02:51,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:02:51,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:02:51,882 INFO L87 Difference]: Start difference. First operand 246 states. Second operand 3 states. [2020-11-28 03:02:53,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:02:53,422 INFO L93 Difference]: Finished difference Result 686 states and 1217 transitions. [2020-11-28 03:02:53,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:02:53,424 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2020-11-28 03:02:53,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:02:53,447 INFO L225 Difference]: With dead ends: 686 [2020-11-28 03:02:53,447 INFO L226 Difference]: Without dead ends: 360 [2020-11-28 03:02:53,451 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 [2020-11-28 03:02:53,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-11-28 03:02:53,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2020-11-28 03:02:53,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-11-28 03:02:53,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 510 transitions. [2020-11-28 03:02:53,522 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 510 transitions. Word has length 56 [2020-11-28 03:02:53,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:02:53,523 INFO L481 AbstractCegarLoop]: Abstraction has 360 states and 510 transitions. [2020-11-28 03:02:53,523 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:02:53,523 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 510 transitions. [2020-11-28 03:02:53,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-11-28 03:02:53,529 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:02:53,530 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:02:53,530 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:02:53,530 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:02:53,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:02:53,531 INFO L82 PathProgramCache]: Analyzing trace with hash 840733511, now seen corresponding path program 1 times [2020-11-28 03:02:53,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:02:53,531 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178357338] [2020-11-28 03:02:53,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:02:53,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:53,856 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:02:53,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178357338] [2020-11-28 03:02:53,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:02:53,856 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:02:53,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047383369] [2020-11-28 03:02:53,860 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:02:53,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:02:53,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:02:53,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:02:53,863 INFO L87 Difference]: Start difference. First operand 360 states and 510 transitions. Second operand 4 states. [2020-11-28 03:02:55,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:02:55,339 INFO L93 Difference]: Finished difference Result 1074 states and 1446 transitions. [2020-11-28 03:02:55,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:02:55,340 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 135 [2020-11-28 03:02:55,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:02:55,346 INFO L225 Difference]: With dead ends: 1074 [2020-11-28 03:02:55,346 INFO L226 Difference]: Without dead ends: 716 [2020-11-28 03:02:55,352 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 [2020-11-28 03:02:55,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2020-11-28 03:02:55,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2020-11-28 03:02:55,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2020-11-28 03:02:55,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 902 transitions. [2020-11-28 03:02:55,417 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 902 transitions. Word has length 135 [2020-11-28 03:02:55,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:02:55,418 INFO L481 AbstractCegarLoop]: Abstraction has 716 states and 902 transitions. [2020-11-28 03:02:55,418 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:02:55,418 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 902 transitions. [2020-11-28 03:02:55,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-11-28 03:02:55,430 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:02:55,431 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:02:55,431 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:02:55,431 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:02:55,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:02:55,432 INFO L82 PathProgramCache]: Analyzing trace with hash 1862010694, now seen corresponding path program 1 times [2020-11-28 03:02:55,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:02:55,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622642114] [2020-11-28 03:02:55,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:02:55,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:55,613 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:02:55,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622642114] [2020-11-28 03:02:55,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:02:55,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:02:55,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42139722] [2020-11-28 03:02:55,616 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:02:55,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:02:55,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:02:55,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:02:55,623 INFO L87 Difference]: Start difference. First operand 716 states and 902 transitions. Second operand 3 states. [2020-11-28 03:02:56,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:02:56,675 INFO L93 Difference]: Finished difference Result 1964 states and 2499 transitions. [2020-11-28 03:02:56,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:02:56,677 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2020-11-28 03:02:56,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:02:56,687 INFO L225 Difference]: With dead ends: 1964 [2020-11-28 03:02:56,687 INFO L226 Difference]: Without dead ends: 1250 [2020-11-28 03:02:56,689 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 [2020-11-28 03:02:56,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2020-11-28 03:02:56,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1250. [2020-11-28 03:02:56,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1250 states. [2020-11-28 03:02:56,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1544 transitions. [2020-11-28 03:02:56,739 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1544 transitions. Word has length 161 [2020-11-28 03:02:56,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:02:56,740 INFO L481 AbstractCegarLoop]: Abstraction has 1250 states and 1544 transitions. [2020-11-28 03:02:56,740 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:02:56,740 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1544 transitions. [2020-11-28 03:02:56,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-11-28 03:02:56,747 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:02:56,748 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:02:56,748 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:02:56,748 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:02:56,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:02:56,749 INFO L82 PathProgramCache]: Analyzing trace with hash -516766469, now seen corresponding path program 1 times [2020-11-28 03:02:56,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:02:56,749 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462408249] [2020-11-28 03:02:56,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:02:56,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:57,089 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-11-28 03:02:57,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462408249] [2020-11-28 03:02:57,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:02:57,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:02:57,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186459936] [2020-11-28 03:02:57,091 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:02:57,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:02:57,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:02:57,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:02:57,094 INFO L87 Difference]: Start difference. First operand 1250 states and 1544 transitions. Second operand 4 states. [2020-11-28 03:02:58,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:02:58,207 INFO L93 Difference]: Finished difference Result 2705 states and 3353 transitions. [2020-11-28 03:02:58,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:02:58,208 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 215 [2020-11-28 03:02:58,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:02:58,217 INFO L225 Difference]: With dead ends: 2705 [2020-11-28 03:02:58,217 INFO L226 Difference]: Without dead ends: 1606 [2020-11-28 03:02:58,219 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 [2020-11-28 03:02:58,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2020-11-28 03:02:58,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1606. [2020-11-28 03:02:58,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1606 states. [2020-11-28 03:02:58,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1801 transitions. [2020-11-28 03:02:58,286 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1801 transitions. Word has length 215 [2020-11-28 03:02:58,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:02:58,288 INFO L481 AbstractCegarLoop]: Abstraction has 1606 states and 1801 transitions. [2020-11-28 03:02:58,288 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:02:58,288 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1801 transitions. [2020-11-28 03:02:58,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2020-11-28 03:02:58,296 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:02:58,296 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:02:58,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:02:58,296 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:02:58,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:02:58,297 INFO L82 PathProgramCache]: Analyzing trace with hash 842944232, now seen corresponding path program 1 times [2020-11-28 03:02:58,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:02:58,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754876293] [2020-11-28 03:02:58,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:02:58,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:58,840 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 209 proven. 130 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-11-28 03:02:58,840 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754876293] [2020-11-28 03:02:58,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833878847] [2020-11-28 03:02:58,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d77b4732-e41a-42f9-93f8-cd95cf5789e7/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 [2020-11-28 03:02:59,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:59,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:02:59,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:02:59,413 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2020-11-28 03:02:59,414 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:02:59,414 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-11-28 03:02:59,414 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226307451] [2020-11-28 03:02:59,415 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:02:59,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:02:59,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:02:59,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:02:59,416 INFO L87 Difference]: Start difference. First operand 1606 states and 1801 transitions. Second operand 3 states. [2020-11-28 03:03:00,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:03:00,531 INFO L93 Difference]: Finished difference Result 3388 states and 3901 transitions. [2020-11-28 03:03:00,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:03:00,532 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 342 [2020-11-28 03:03:00,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:03:00,543 INFO L225 Difference]: With dead ends: 3388 [2020-11-28 03:03:00,544 INFO L226 Difference]: Without dead ends: 1962 [2020-11-28 03:03:00,547 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:03:00,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2020-11-28 03:03:00,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1784. [2020-11-28 03:03:00,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1784 states. [2020-11-28 03:03:00,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2018 transitions. [2020-11-28 03:03:00,593 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2018 transitions. Word has length 342 [2020-11-28 03:03:00,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:03:00,595 INFO L481 AbstractCegarLoop]: Abstraction has 1784 states and 2018 transitions. [2020-11-28 03:03:00,595 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:03:00,595 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2018 transitions. [2020-11-28 03:03:00,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2020-11-28 03:03:00,601 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:03:00,602 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:03:00,816 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:03:00,816 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:03:00,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:00,817 INFO L82 PathProgramCache]: Analyzing trace with hash -217626146, now seen corresponding path program 1 times [2020-11-28 03:03:00,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:00,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276813527] [2020-11-28 03:03:00,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:00,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:01,413 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 292 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:03:01,414 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276813527] [2020-11-28 03:03:01,414 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1591678342] [2020-11-28 03:03:01,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d77b4732-e41a-42f9-93f8-cd95cf5789e7/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 [2020-11-28 03:03:01,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:01,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:03:01,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:03:01,787 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2020-11-28 03:03:01,787 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:03:01,788 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-11-28 03:03:01,789 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356813158] [2020-11-28 03:03:01,793 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:03:01,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:03:01,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:03:01,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:03:01,795 INFO L87 Difference]: Start difference. First operand 1784 states and 2018 transitions. Second operand 3 states. [2020-11-28 03:03:02,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:03:02,661 INFO L93 Difference]: Finished difference Result 2320 states and 2616 transitions. [2020-11-28 03:03:02,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:03:02,662 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 346 [2020-11-28 03:03:02,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:03:02,675 INFO L225 Difference]: With dead ends: 2320 [2020-11-28 03:03:02,675 INFO L226 Difference]: Without dead ends: 2318 [2020-11-28 03:03:02,676 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:03:02,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2020-11-28 03:03:02,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 1962. [2020-11-28 03:03:02,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1962 states. [2020-11-28 03:03:02,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2232 transitions. [2020-11-28 03:03:02,725 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2232 transitions. Word has length 346 [2020-11-28 03:03:02,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:03:02,727 INFO L481 AbstractCegarLoop]: Abstraction has 1962 states and 2232 transitions. [2020-11-28 03:03:02,727 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:03:02,727 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2232 transitions. [2020-11-28 03:03:02,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2020-11-28 03:03:02,738 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:03:02,739 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:03:02,964 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:03:02,964 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:03:02,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:02,965 INFO L82 PathProgramCache]: Analyzing trace with hash -1988080208, now seen corresponding path program 1 times [2020-11-28 03:03:02,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:02,965 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340090505] [2020-11-28 03:03:02,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:03,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:03,647 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 629 proven. 130 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-11-28 03:03:03,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340090505] [2020-11-28 03:03:03,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756051995] [2020-11-28 03:03:03,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d77b4732-e41a-42f9-93f8-cd95cf5789e7/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 [2020-11-28 03:03:03,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:03,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 625 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:03:03,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:03:04,002 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 215 proven. 0 refuted. 0 times theorem prover too weak. 598 trivial. 0 not checked. [2020-11-28 03:03:04,002 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:03:04,002 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-11-28 03:03:04,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563770012] [2020-11-28 03:03:04,006 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:03:04,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:03:04,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:03:04,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:03:04,008 INFO L87 Difference]: Start difference. First operand 1962 states and 2232 transitions. Second operand 3 states. [2020-11-28 03:03:04,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:03:04,906 INFO L93 Difference]: Finished difference Result 4456 states and 5168 transitions. [2020-11-28 03:03:04,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:03:04,907 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 470 [2020-11-28 03:03:04,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:03:04,922 INFO L225 Difference]: With dead ends: 4456 [2020-11-28 03:03:04,922 INFO L226 Difference]: Without dead ends: 2674 [2020-11-28 03:03:04,924 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 469 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:03:04,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2020-11-28 03:03:04,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2318. [2020-11-28 03:03:04,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2318 states. [2020-11-28 03:03:04,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2678 transitions. [2020-11-28 03:03:04,987 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2678 transitions. Word has length 470 [2020-11-28 03:03:04,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:03:04,988 INFO L481 AbstractCegarLoop]: Abstraction has 2318 states and 2678 transitions. [2020-11-28 03:03:04,988 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:03:04,988 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2678 transitions. [2020-11-28 03:03:05,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 541 [2020-11-28 03:03:05,001 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:03:05,002 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-11-28 03:03:05,216 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:03:05,216 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:03:05,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:05,217 INFO L82 PathProgramCache]: Analyzing trace with hash 6582273, now seen corresponding path program 1 times [2020-11-28 03:03:05,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:05,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824181945] [2020-11-28 03:03:05,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:05,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:05,860 INFO L134 CoverageAnalysis]: Checked inductivity of 847 backedges. 663 proven. 130 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-11-28 03:03:05,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824181945] [2020-11-28 03:03:05,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2108165114] [2020-11-28 03:03:05,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d77b4732-e41a-42f9-93f8-cd95cf5789e7/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 [2020-11-28 03:03:06,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:06,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:03:06,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:03:06,324 INFO L134 CoverageAnalysis]: Checked inductivity of 847 backedges. 215 proven. 0 refuted. 0 times theorem prover too weak. 632 trivial. 0 not checked. [2020-11-28 03:03:06,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:03:06,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-11-28 03:03:06,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769098189] [2020-11-28 03:03:06,326 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:03:06,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:03:06,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:03:06,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:03:06,327 INFO L87 Difference]: Start difference. First operand 2318 states and 2678 transitions. Second operand 3 states. [2020-11-28 03:03:07,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:03:07,196 INFO L93 Difference]: Finished difference Result 5344 states and 6268 transitions. [2020-11-28 03:03:07,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:03:07,196 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 540 [2020-11-28 03:03:07,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:03:07,198 INFO L225 Difference]: With dead ends: 5344 [2020-11-28 03:03:07,198 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:03:07,203 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 544 GetRequests, 539 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:03:07,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:03:07,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:03:07,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:03:07,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:03:07,204 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 540 [2020-11-28 03:03:07,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:03:07,204 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:03:07,204 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:03:07,204 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:03:07,204 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:03:07,405 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:03:07,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:03:07,540 INFO L274 CegarLoopResult]: For program point L762(lines 762 880) no Hoare annotation was computed. [2020-11-28 03:03:07,540 INFO L274 CegarLoopResult]: For program point L895(line 895) no Hoare annotation was computed. [2020-11-28 03:03:07,540 INFO L274 CegarLoopResult]: For program point L829(lines 829 880) no Hoare annotation was computed. [2020-11-28 03:03:07,540 INFO L274 CegarLoopResult]: For program point L631(lines 631 880) no Hoare annotation was computed. [2020-11-28 03:03:07,541 INFO L274 CegarLoopResult]: For program point L565(lines 565 880) no Hoare annotation was computed. [2020-11-28 03:03:07,541 INFO L274 CegarLoopResult]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,541 INFO L274 CegarLoopResult]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,541 INFO L274 CegarLoopResult]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,541 INFO L274 CegarLoopResult]: For program point L698(lines 698 880) no Hoare annotation was computed. [2020-11-28 03:03:07,541 INFO L274 CegarLoopResult]: For program point L500(lines 500 880) no Hoare annotation was computed. [2020-11-28 03:03:07,541 INFO L274 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-11-28 03:03:07,541 INFO L274 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-11-28 03:03:07,541 INFO L274 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-11-28 03:03:07,541 INFO L274 CegarLoopResult]: For program point L369(lines 369 880) no Hoare annotation was computed. [2020-11-28 03:03:07,541 INFO L274 CegarLoopResult]: For program point L303(lines 303 880) no Hoare annotation was computed. [2020-11-28 03:03:07,541 INFO L274 CegarLoopResult]: For program point L436(lines 436 880) no Hoare annotation was computed. [2020-11-28 03:03:07,541 INFO L274 CegarLoopResult]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,541 INFO L274 CegarLoopResult]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,542 INFO L274 CegarLoopResult]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,542 INFO L274 CegarLoopResult]: For program point L239(lines 239 880) no Hoare annotation was computed. [2020-11-28 03:03:07,542 INFO L274 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2020-11-28 03:03:07,542 INFO L274 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-11-28 03:03:07,542 INFO L274 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-11-28 03:03:07,542 INFO L274 CegarLoopResult]: For program point L768(lines 768 880) no Hoare annotation was computed. [2020-11-28 03:03:07,542 INFO L274 CegarLoopResult]: For program point L636(lines 636 880) no Hoare annotation was computed. [2020-11-28 03:03:07,542 INFO L274 CegarLoopResult]: For program point L835(lines 835 880) no Hoare annotation was computed. [2020-11-28 03:03:07,542 INFO L274 CegarLoopResult]: For program point L571(lines 571 880) no Hoare annotation was computed. [2020-11-28 03:03:07,542 INFO L274 CegarLoopResult]: For program point L505(lines 505 880) no Hoare annotation was computed. [2020-11-28 03:03:07,542 INFO L274 CegarLoopResult]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,542 INFO L274 CegarLoopResult]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,542 INFO L274 CegarLoopResult]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,542 INFO L274 CegarLoopResult]: For program point L704(lines 704 880) no Hoare annotation was computed. [2020-11-28 03:03:07,542 INFO L274 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2020-11-28 03:03:07,542 INFO L274 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-11-28 03:03:07,543 INFO L274 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-11-28 03:03:07,543 INFO L274 CegarLoopResult]: For program point L309(lines 309 880) no Hoare annotation was computed. [2020-11-28 03:03:07,543 INFO L274 CegarLoopResult]: For program point L442(lines 442 880) no Hoare annotation was computed. [2020-11-28 03:03:07,543 INFO L274 CegarLoopResult]: For program point L376(lines 376 880) no Hoare annotation was computed. [2020-11-28 03:03:07,543 INFO L274 CegarLoopResult]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,543 INFO L274 CegarLoopResult]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,543 INFO L274 CegarLoopResult]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,543 INFO L274 CegarLoopResult]: For program point L245(lines 245 880) no Hoare annotation was computed. [2020-11-28 03:03:07,543 INFO L274 CegarLoopResult]: For program point L179(line 179) no Hoare annotation was computed. [2020-11-28 03:03:07,543 INFO L274 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2020-11-28 03:03:07,543 INFO L274 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-11-28 03:03:07,543 INFO L274 CegarLoopResult]: For program point L774(lines 774 880) no Hoare annotation was computed. [2020-11-28 03:03:07,543 INFO L274 CegarLoopResult]: For program point L642(lines 642 880) no Hoare annotation was computed. [2020-11-28 03:03:07,543 INFO L274 CegarLoopResult]: For program point L510(lines 510 880) no Hoare annotation was computed. [2020-11-28 03:03:07,543 INFO L274 CegarLoopResult]: For program point L841(lines 841 880) no Hoare annotation was computed. [2020-11-28 03:03:07,544 INFO L274 CegarLoopResult]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,544 INFO L274 CegarLoopResult]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,544 INFO L274 CegarLoopResult]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,544 INFO L274 CegarLoopResult]: For program point L710(lines 710 880) no Hoare annotation was computed. [2020-11-28 03:03:07,544 INFO L274 CegarLoopResult]: For program point L578(lines 578 880) no Hoare annotation was computed. [2020-11-28 03:03:07,544 INFO L274 CegarLoopResult]: For program point L182(line 182) no Hoare annotation was computed. [2020-11-28 03:03:07,544 INFO L274 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-11-28 03:03:07,544 INFO L274 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-11-28 03:03:07,544 INFO L274 CegarLoopResult]: For program point L315(lines 315 880) no Hoare annotation was computed. [2020-11-28 03:03:07,544 INFO L274 CegarLoopResult]: For program point L448(lines 448 880) no Hoare annotation was computed. [2020-11-28 03:03:07,544 INFO L274 CegarLoopResult]: For program point L382(lines 382 880) no Hoare annotation was computed. [2020-11-28 03:03:07,544 INFO L274 CegarLoopResult]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,544 INFO L274 CegarLoopResult]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,544 INFO L274 CegarLoopResult]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,545 INFO L274 CegarLoopResult]: For program point L251(lines 251 880) no Hoare annotation was computed. [2020-11-28 03:03:07,545 INFO L274 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-11-28 03:03:07,545 INFO L274 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2020-11-28 03:03:07,545 INFO L274 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-11-28 03:03:07,545 INFO L274 CegarLoopResult]: For program point L648(lines 648 880) no Hoare annotation was computed. [2020-11-28 03:03:07,545 INFO L274 CegarLoopResult]: For program point L516(lines 516 880) no Hoare annotation was computed. [2020-11-28 03:03:07,545 INFO L274 CegarLoopResult]: For program point L847(lines 847 880) no Hoare annotation was computed. [2020-11-28 03:03:07,545 INFO L274 CegarLoopResult]: For program point L781(lines 781 880) no Hoare annotation was computed. [2020-11-28 03:03:07,545 INFO L274 CegarLoopResult]: For program point L583(lines 583 880) no Hoare annotation was computed. [2020-11-28 03:03:07,545 INFO L274 CegarLoopResult]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,545 INFO L274 CegarLoopResult]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,545 INFO L274 CegarLoopResult]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,545 INFO L274 CegarLoopResult]: For program point L716(lines 716 880) no Hoare annotation was computed. [2020-11-28 03:03:07,545 INFO L274 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2020-11-28 03:03:07,545 INFO L274 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-11-28 03:03:07,546 INFO L274 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2020-11-28 03:03:07,546 INFO L274 CegarLoopResult]: For program point L321(lines 321 880) no Hoare annotation was computed. [2020-11-28 03:03:07,546 INFO L274 CegarLoopResult]: For program point L454(lines 454 880) no Hoare annotation was computed. [2020-11-28 03:03:07,546 INFO L274 CegarLoopResult]: For program point L388(lines 388 880) no Hoare annotation was computed. [2020-11-28 03:03:07,546 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:03:07,546 INFO L274 CegarLoopResult]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,546 INFO L274 CegarLoopResult]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,546 INFO L274 CegarLoopResult]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,546 INFO L274 CegarLoopResult]: For program point L257(lines 257 880) no Hoare annotation was computed. [2020-11-28 03:03:07,546 INFO L274 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2020-11-28 03:03:07,546 INFO L274 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-11-28 03:03:07,546 INFO L274 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-11-28 03:03:07,546 INFO L274 CegarLoopResult]: For program point L852(lines 852 880) no Hoare annotation was computed. [2020-11-28 03:03:07,546 INFO L274 CegarLoopResult]: For program point L654(lines 654 880) no Hoare annotation was computed. [2020-11-28 03:03:07,546 INFO L274 CegarLoopResult]: For program point L522(lines 522 880) no Hoare annotation was computed. [2020-11-28 03:03:07,547 INFO L274 CegarLoopResult]: For program point L787(lines 787 880) no Hoare annotation was computed. [2020-11-28 03:03:07,547 INFO L274 CegarLoopResult]: For program point L589(lines 589 880) no Hoare annotation was computed. [2020-11-28 03:03:07,547 INFO L274 CegarLoopResult]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,547 INFO L274 CegarLoopResult]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,547 INFO L274 CegarLoopResult]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,547 INFO L274 CegarLoopResult]: For program point L722(lines 722 880) no Hoare annotation was computed. [2020-11-28 03:03:07,547 INFO L274 CegarLoopResult]: For program point L194(line 194) no Hoare annotation was computed. [2020-11-28 03:03:07,547 INFO L274 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2020-11-28 03:03:07,547 INFO L274 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-11-28 03:03:07,547 INFO L274 CegarLoopResult]: For program point L459(lines 459 880) no Hoare annotation was computed. [2020-11-28 03:03:07,547 INFO L274 CegarLoopResult]: For program point L327(lines 327 880) no Hoare annotation was computed. [2020-11-28 03:03:07,547 INFO L274 CegarLoopResult]: For program point L394(lines 394 880) no Hoare annotation was computed. [2020-11-28 03:03:07,547 INFO L274 CegarLoopResult]: For program point L262(lines 262 880) no Hoare annotation was computed. [2020-11-28 03:03:07,547 INFO L274 CegarLoopResult]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,547 INFO L274 CegarLoopResult]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,548 INFO L274 CegarLoopResult]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,548 INFO L274 CegarLoopResult]: For program point L197(line 197) no Hoare annotation was computed. [2020-11-28 03:03:07,548 INFO L274 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2020-11-28 03:03:07,553 INFO L274 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-11-28 03:03:07,557 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:03:07,557 INFO L274 CegarLoopResult]: For program point L858(lines 858 880) no Hoare annotation was computed. [2020-11-28 03:03:07,557 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-28 03:03:07,558 INFO L274 CegarLoopResult]: For program point L660(lines 660 880) no Hoare annotation was computed. [2020-11-28 03:03:07,558 INFO L274 CegarLoopResult]: For program point L528(lines 528 880) no Hoare annotation was computed. [2020-11-28 03:03:07,558 INFO L274 CegarLoopResult]: For program point L793(lines 793 880) no Hoare annotation was computed. [2020-11-28 03:03:07,558 INFO L274 CegarLoopResult]: For program point L595(lines 595 880) no Hoare annotation was computed. [2020-11-28 03:03:07,558 INFO L274 CegarLoopResult]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,558 INFO L274 CegarLoopResult]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,558 INFO L274 CegarLoopResult]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,559 INFO L274 CegarLoopResult]: For program point L728(lines 728 880) no Hoare annotation was computed. [2020-11-28 03:03:07,559 INFO L274 CegarLoopResult]: For program point L464(lines 464 880) no Hoare annotation was computed. [2020-11-28 03:03:07,559 INFO L274 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-11-28 03:03:07,559 INFO L274 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-11-28 03:03:07,559 INFO L274 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-11-28 03:03:07,559 INFO L274 CegarLoopResult]: For program point L333(lines 333 880) no Hoare annotation was computed. [2020-11-28 03:03:07,559 INFO L274 CegarLoopResult]: For program point L400(lines 400 880) no Hoare annotation was computed. [2020-11-28 03:03:07,559 INFO L274 CegarLoopResult]: For program point L268(lines 268 880) no Hoare annotation was computed. [2020-11-28 03:03:07,559 INFO L274 CegarLoopResult]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,560 INFO L274 CegarLoopResult]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,560 INFO L274 CegarLoopResult]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,560 INFO L274 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-11-28 03:03:07,560 INFO L274 CegarLoopResult]: For program point L137(line 137) no Hoare annotation was computed. [2020-11-28 03:03:07,560 INFO L274 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-11-28 03:03:07,560 INFO L274 CegarLoopResult]: For program point L864(lines 864 880) no Hoare annotation was computed. [2020-11-28 03:03:07,560 INFO L274 CegarLoopResult]: For program point L666(lines 666 880) no Hoare annotation was computed. [2020-11-28 03:03:07,560 INFO L274 CegarLoopResult]: For program point L534(lines 534 880) no Hoare annotation was computed. [2020-11-28 03:03:07,561 INFO L274 CegarLoopResult]: For program point L799(lines 799 880) no Hoare annotation was computed. [2020-11-28 03:03:07,561 INFO L274 CegarLoopResult]: For program point L601(lines 601 880) no Hoare annotation was computed. [2020-11-28 03:03:07,561 INFO L274 CegarLoopResult]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,561 INFO L274 CegarLoopResult]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,561 INFO L274 CegarLoopResult]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,561 INFO L274 CegarLoopResult]: For program point L734(lines 734 880) no Hoare annotation was computed. [2020-11-28 03:03:07,561 INFO L274 CegarLoopResult]: For program point L470(lines 470 880) no Hoare annotation was computed. [2020-11-28 03:03:07,561 INFO L274 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2020-11-28 03:03:07,561 INFO L274 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-11-28 03:03:07,562 INFO L274 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-11-28 03:03:07,562 INFO L274 CegarLoopResult]: For program point L339(lines 339 880) no Hoare annotation was computed. [2020-11-28 03:03:07,562 INFO L274 CegarLoopResult]: For program point L406(lines 406 880) no Hoare annotation was computed. [2020-11-28 03:03:07,562 INFO L274 CegarLoopResult]: For program point L274(lines 274 880) no Hoare annotation was computed. [2020-11-28 03:03:07,562 INFO L274 CegarLoopResult]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,562 INFO L274 CegarLoopResult]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,562 INFO L274 CegarLoopResult]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,562 INFO L274 CegarLoopResult]: For program point L869(lines 869 880) no Hoare annotation was computed. [2020-11-28 03:03:07,563 INFO L274 CegarLoopResult]: For program point L209(line 209) no Hoare annotation was computed. [2020-11-28 03:03:07,563 INFO L274 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-11-28 03:03:07,563 INFO L274 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2020-11-28 03:03:07,563 INFO L274 CegarLoopResult]: For program point L672(lines 672 880) no Hoare annotation was computed. [2020-11-28 03:03:07,563 INFO L274 CegarLoopResult]: For program point L540(lines 540 880) no Hoare annotation was computed. [2020-11-28 03:03:07,563 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-28 03:03:07,563 INFO L274 CegarLoopResult]: For program point L805(lines 805 880) no Hoare annotation was computed. [2020-11-28 03:03:07,563 INFO L274 CegarLoopResult]: For program point L607(lines 607 880) no Hoare annotation was computed. [2020-11-28 03:03:07,564 INFO L274 CegarLoopResult]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,564 INFO L274 CegarLoopResult]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,564 INFO L274 CegarLoopResult]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,564 INFO L274 CegarLoopResult]: For program point L740(lines 740 880) no Hoare annotation was computed. [2020-11-28 03:03:07,564 INFO L274 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-11-28 03:03:07,564 INFO L274 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2020-11-28 03:03:07,564 INFO L274 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-11-28 03:03:07,564 INFO L274 CegarLoopResult]: For program point L477(lines 477 880) no Hoare annotation was computed. [2020-11-28 03:03:07,564 INFO L274 CegarLoopResult]: For program point L345(lines 345 880) no Hoare annotation was computed. [2020-11-28 03:03:07,565 INFO L274 CegarLoopResult]: For program point L279(lines 279 880) no Hoare annotation was computed. [2020-11-28 03:03:07,565 INFO L274 CegarLoopResult]: For program point L412(lines 412 880) no Hoare annotation was computed. [2020-11-28 03:03:07,565 INFO L274 CegarLoopResult]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,565 INFO L274 CegarLoopResult]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,565 INFO L274 CegarLoopResult]: For program point L875(lines 875 880) no Hoare annotation was computed. [2020-11-28 03:03:07,565 INFO L274 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2020-11-28 03:03:07,565 INFO L274 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-11-28 03:03:07,565 INFO L274 CegarLoopResult]: For program point L678(lines 678 880) no Hoare annotation was computed. [2020-11-28 03:03:07,566 INFO L274 CegarLoopResult]: For program point L546(lines 546 880) no Hoare annotation was computed. [2020-11-28 03:03:07,566 INFO L274 CegarLoopResult]: For program point L811(lines 811 880) no Hoare annotation was computed. [2020-11-28 03:03:07,566 INFO L274 CegarLoopResult]: For program point L745(lines 745 880) no Hoare annotation was computed. [2020-11-28 03:03:07,566 INFO L274 CegarLoopResult]: For program point L613(lines 613 880) no Hoare annotation was computed. [2020-11-28 03:03:07,566 INFO L274 CegarLoopResult]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,566 INFO L274 CegarLoopResult]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,566 INFO L274 CegarLoopResult]: For program point L482(lines 482 880) no Hoare annotation was computed. [2020-11-28 03:03:07,566 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:03:07,566 INFO L274 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-11-28 03:03:07,567 INFO L274 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-11-28 03:03:07,567 INFO L274 CegarLoopResult]: For program point L351(lines 351 880) no Hoare annotation was computed. [2020-11-28 03:03:07,567 INFO L274 CegarLoopResult]: For program point L285(lines 285 880) no Hoare annotation was computed. [2020-11-28 03:03:07,567 INFO L274 CegarLoopResult]: For program point L418(lines 418 880) no Hoare annotation was computed. [2020-11-28 03:03:07,567 INFO L274 CegarLoopResult]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,567 INFO L274 CegarLoopResult]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,568 INFO L270 CegarLoopResult]: At program point L881(lines 30 882) the Hoare annotation is: (or (<= ~a21~0 7) (<= 6 ~a15~0) (<= 10 ~a21~0) (<= ~a12~0 80)) [2020-11-28 03:03:07,568 INFO L274 CegarLoopResult]: For program point L551(lines 551 880) no Hoare annotation was computed. [2020-11-28 03:03:07,568 INFO L274 CegarLoopResult]: For program point L221(lines 221 880) no Hoare annotation was computed. [2020-11-28 03:03:07,568 INFO L274 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-11-28 03:03:07,568 INFO L274 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-11-28 03:03:07,568 INFO L274 CegarLoopResult]: For program point L684(lines 684 880) no Hoare annotation was computed. [2020-11-28 03:03:07,569 INFO L274 CegarLoopResult]: For program point L817(lines 817 880) no Hoare annotation was computed. [2020-11-28 03:03:07,569 INFO L274 CegarLoopResult]: For program point L751(lines 751 880) no Hoare annotation was computed. [2020-11-28 03:03:07,569 INFO L274 CegarLoopResult]: For program point L619(lines 619 880) no Hoare annotation was computed. [2020-11-28 03:03:07,569 INFO L274 CegarLoopResult]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,569 INFO L274 CegarLoopResult]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,570 INFO L277 CegarLoopResult]: At program point L884(lines 884 900) the Hoare annotation is: true [2020-11-28 03:03:07,570 INFO L274 CegarLoopResult]: For program point L488(lines 488 880) no Hoare annotation was computed. [2020-11-28 03:03:07,570 INFO L274 CegarLoopResult]: For program point L290(lines 290 880) no Hoare annotation was computed. [2020-11-28 03:03:07,570 INFO L274 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-11-28 03:03:07,570 INFO L274 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-11-28 03:03:07,570 INFO L274 CegarLoopResult]: For program point L687(lines 687 880) no Hoare annotation was computed. [2020-11-28 03:03:07,570 INFO L274 CegarLoopResult]: For program point L357(lines 357 880) no Hoare annotation was computed. [2020-11-28 03:03:07,570 INFO L274 CegarLoopResult]: For program point L424(lines 424 880) no Hoare annotation was computed. [2020-11-28 03:03:07,571 INFO L274 CegarLoopResult]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,571 INFO L274 CegarLoopResult]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,571 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:03:07,571 INFO L274 CegarLoopResult]: For program point L557(lines 557 880) no Hoare annotation was computed. [2020-11-28 03:03:07,571 INFO L274 CegarLoopResult]: For program point L227(lines 227 880) no Hoare annotation was computed. [2020-11-28 03:03:07,571 INFO L274 CegarLoopResult]: For program point L161(line 161) no Hoare annotation was computed. [2020-11-28 03:03:07,571 INFO L274 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-11-28 03:03:07,571 INFO L274 CegarLoopResult]: For program point L757(lines 757 880) no Hoare annotation was computed. [2020-11-28 03:03:07,572 INFO L274 CegarLoopResult]: For program point L625(lines 625 880) no Hoare annotation was computed. [2020-11-28 03:03:07,572 INFO L274 CegarLoopResult]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,572 INFO L274 CegarLoopResult]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,572 INFO L274 CegarLoopResult]: For program point L31(lines 31 33) no Hoare annotation was computed. [2020-11-28 03:03:07,572 INFO L274 CegarLoopResult]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,572 INFO L274 CegarLoopResult]: For program point L824(lines 824 880) no Hoare annotation was computed. [2020-11-28 03:03:07,573 INFO L270 CegarLoopResult]: At program point L890-2(lines 890 899) the Hoare annotation is: (or (<= ~a21~0 7) (<= 6 ~a15~0) (<= 10 ~a21~0) (<= ~a12~0 80)) [2020-11-28 03:03:07,573 INFO L274 CegarLoopResult]: For program point L494(lines 494 880) no Hoare annotation was computed. [2020-11-28 03:03:07,573 INFO L274 CegarLoopResult]: For program point L296(lines 296 880) no Hoare annotation was computed. [2020-11-28 03:03:07,573 INFO L274 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-11-28 03:03:07,573 INFO L274 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-11-28 03:03:07,573 INFO L274 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-11-28 03:03:07,574 INFO L274 CegarLoopResult]: For program point L693(lines 693 880) no Hoare annotation was computed. [2020-11-28 03:03:07,574 INFO L274 CegarLoopResult]: For program point L363(lines 363 880) no Hoare annotation was computed. [2020-11-28 03:03:07,574 INFO L274 CegarLoopResult]: For program point L562(lines 562 880) no Hoare annotation was computed. [2020-11-28 03:03:07,574 INFO L274 CegarLoopResult]: For program point L430(lines 430 880) no Hoare annotation was computed. [2020-11-28 03:03:07,574 INFO L274 CegarLoopResult]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,574 INFO L274 CegarLoopResult]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,574 INFO L274 CegarLoopResult]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 03:03:07,574 INFO L274 CegarLoopResult]: For program point L233(lines 233 880) no Hoare annotation was computed. [2020-11-28 03:03:07,575 INFO L274 CegarLoopResult]: For program point L167(line 167) no Hoare annotation was computed. [2020-11-28 03:03:07,575 INFO L274 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-11-28 03:03:07,575 INFO L274 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-11-28 03:03:07,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:03:07 BoogieIcfgContainer [2020-11-28 03:03:07,593 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:03:07,593 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:03:07,594 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:03:07,594 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:03:07,594 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:02:51" (3/4) ... [2020-11-28 03:03:07,599 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:03:07,643 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-28 03:03:07,644 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 03:03:07,646 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:03:07,648 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:03:07,839 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d77b4732-e41a-42f9-93f8-cd95cf5789e7/bin/uautomizer/witness.graphml [2020-11-28 03:03:07,839 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:03:07,841 INFO L168 Benchmark]: Toolchain (without parser) took 19594.96 ms. Allocated memory was 90.2 MB in the beginning and 698.4 MB in the end (delta: 608.2 MB). Free memory was 55.8 MB in the beginning and 441.8 MB in the end (delta: -386.0 MB). Peak memory consumption was 223.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:07,842 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 90.2 MB. Free memory is still 46.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:03:07,843 INFO L168 Benchmark]: CACSL2BoogieTranslator took 942.31 ms. Allocated memory was 90.2 MB in the beginning and 117.4 MB in the end (delta: 27.3 MB). Free memory was 55.6 MB in the beginning and 71.6 MB in the end (delta: -15.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:07,843 INFO L168 Benchmark]: Boogie Procedure Inliner took 154.52 ms. Allocated memory is still 117.4 MB. Free memory was 71.6 MB in the beginning and 61.7 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:07,843 INFO L168 Benchmark]: Boogie Preprocessor took 107.92 ms. Allocated memory is still 117.4 MB. Free memory was 61.7 MB in the beginning and 55.3 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:07,844 INFO L168 Benchmark]: RCFGBuilder took 1894.16 ms. Allocated memory is still 117.4 MB. Free memory was 55.3 MB in the beginning and 61.3 MB in the end (delta: -6.0 MB). Peak memory consumption was 35.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:07,844 INFO L168 Benchmark]: TraceAbstraction took 16241.18 ms. Allocated memory was 117.4 MB in the beginning and 698.4 MB in the end (delta: 580.9 MB). Free memory was 60.6 MB in the beginning and 460.6 MB in the end (delta: -400.1 MB). Peak memory consumption was 180.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:07,845 INFO L168 Benchmark]: Witness Printer took 246.12 ms. Allocated memory is still 698.4 MB. Free memory was 460.6 MB in the beginning and 441.8 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:07,847 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 90.2 MB. Free memory is still 46.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 942.31 ms. Allocated memory was 90.2 MB in the beginning and 117.4 MB in the end (delta: 27.3 MB). Free memory was 55.6 MB in the beginning and 71.6 MB in the end (delta: -15.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 154.52 ms. Allocated memory is still 117.4 MB. Free memory was 71.6 MB in the beginning and 61.7 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 107.92 ms. Allocated memory is still 117.4 MB. Free memory was 61.7 MB in the beginning and 55.3 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1894.16 ms. Allocated memory is still 117.4 MB. Free memory was 55.3 MB in the beginning and 61.3 MB in the end (delta: -6.0 MB). Peak memory consumption was 35.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 16241.18 ms. Allocated memory was 117.4 MB in the beginning and 698.4 MB in the end (delta: 580.9 MB). Free memory was 60.6 MB in the beginning and 460.6 MB in the end (delta: -400.1 MB). Peak memory consumption was 180.6 MB. Max. memory is 16.1 GB. * Witness Printer took 246.12 ms. Allocated memory is still 698.4 MB. Free memory was 460.6 MB in the beginning and 441.8 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.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: ((a21 <= 7 || 6 <= a15) || 10 <= a21) || a12 <= 80 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((a21 <= 7 || 6 <= a15) || 10 <= a21) || a12 <= 80 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 246 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 15.9s, OverallIterations: 8, TraceHistogramMax: 5, AutomataDifference: 9.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 796 SDtfs, 1316 SDslu, 45 SDs, 0 SdLazy, 4429 SolverSat, 756 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1725 GetRequests, 1699 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2318occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 890 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 43 NumberOfFragments, 27 HoareAnnotationTreeSize, 3 FomulaSimplifications, 756 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 60 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 3963 NumberOfCodeBlocks, 3963 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 3951 ConstructedInterpolants, 0 QuantifiedInterpolants, 5618683 SizeOfPredicates, 4 NumberOfNonLiveVariables, 2269 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 12 InterpolantComputations, 8 PerfectInterpolantSequences, 4763/5283 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...