./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i --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_78b5fe8e-7b49-45ec-b6ec-0caa97d19db2/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_78b5fe8e-7b49-45ec-b6ec-0caa97d19db2/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_78b5fe8e-7b49-45ec-b6ec-0caa97d19db2/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_78b5fe8e-7b49-45ec-b6ec-0caa97d19db2/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i -s /tmp/vcloud-vcloud-master/worker/run_dir_78b5fe8e-7b49-45ec-b6ec-0caa97d19db2/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_78b5fe8e-7b49-45ec-b6ec-0caa97d19db2/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 93bb43afb01d6e3a62dc39071b7659c8b1c085d1 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 12:50:23,762 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:50:23,765 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:50:23,827 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:50:23,828 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:50:23,835 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:50:23,837 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:50:23,845 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:50:23,860 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:50:23,862 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:50:23,863 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:50:23,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:50:23,866 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:50:23,867 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:50:23,876 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:50:23,877 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:50:23,879 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:50:23,880 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:50:23,887 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:50:23,895 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:50:23,900 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:50:23,902 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:50:23,904 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:50:23,905 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:50:23,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:50:23,910 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:50:23,911 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:50:23,912 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:50:23,913 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:50:23,915 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:50:23,915 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:50:23,916 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:50:23,918 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:50:23,919 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:50:23,920 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:50:23,921 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:50:23,922 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:50:23,922 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:50:23,923 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:50:23,924 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:50:23,925 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:50:23,926 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_78b5fe8e-7b49-45ec-b6ec-0caa97d19db2/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 12:50:23,961 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:50:23,962 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:50:23,963 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:50:23,963 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:50:23,963 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:50:23,964 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:50:23,964 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 12:50:23,964 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:50:23,965 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:50:23,965 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 12:50:23,965 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 12:50:23,965 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:50:23,966 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 12:50:23,966 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 12:50:23,966 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 12:50:23,967 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:50:23,968 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:50:23,968 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 12:50:23,968 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:50:23,969 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:50:23,969 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:50:23,969 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:50:23,970 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:50:23,970 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:50:23,970 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:50:23,971 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:50:23,971 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:50:23,971 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:50:23,972 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:50:23,972 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:50:23,972 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:50:23,972 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:50:23,973 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:50:23,973 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:50:23,974 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:50:23,974 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 12:50:23,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 12:50:23,974 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:50:23,975 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:50:23,975 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:50:23,975 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_78b5fe8e-7b49-45ec-b6ec-0caa97d19db2/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_78b5fe8e-7b49-45ec-b6ec-0caa97d19db2/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93bb43afb01d6e3a62dc39071b7659c8b1c085d1 [2020-11-22 12:50:24,302 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:50:24,351 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:50:24,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:50:24,359 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:50:24,360 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:50:24,361 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_78b5fe8e-7b49-45ec-b6ec-0caa97d19db2/bin/utaipan/../../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i [2020-11-22 12:50:24,458 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_78b5fe8e-7b49-45ec-b6ec-0caa97d19db2/bin/utaipan/data/2fd132a0a/0aa84393cbec4bda93682f755488c2ac/FLAGcff7eac65 [2020-11-22 12:50:25,127 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:50:25,127 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_78b5fe8e-7b49-45ec-b6ec-0caa97d19db2/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i [2020-11-22 12:50:25,135 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_78b5fe8e-7b49-45ec-b6ec-0caa97d19db2/bin/utaipan/data/2fd132a0a/0aa84393cbec4bda93682f755488c2ac/FLAGcff7eac65 [2020-11-22 12:50:25,455 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_78b5fe8e-7b49-45ec-b6ec-0caa97d19db2/bin/utaipan/data/2fd132a0a/0aa84393cbec4bda93682f755488c2ac [2020-11-22 12:50:25,457 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:50:25,461 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:50:25,465 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:50:25,465 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:50:25,470 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:50:25,472 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:50:25" (1/1) ... [2020-11-22 12:50:25,474 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44557ad1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:50:25, skipping insertion in model container [2020-11-22 12:50:25,474 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:50:25" (1/1) ... [2020-11-22 12:50:25,484 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:50:25,512 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:50:25,709 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:50:25,737 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 12:50:25,788 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:50:25,806 INFO L208 MainTranslator]: Completed translation [2020-11-22 12:50:25,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:50:25 WrapperNode [2020-11-22 12:50:25,807 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:50:25,809 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 12:50:25,809 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 12:50:25,809 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 12:50:25,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:50:25" (1/1) ... [2020-11-22 12:50:25,828 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:50:25" (1/1) ... [2020-11-22 12:50:25,865 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 12:50:25,867 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 12:50:25,867 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 12:50:25,867 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 12:50:25,877 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:50:25" (1/1) ... [2020-11-22 12:50:25,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:50:25" (1/1) ... [2020-11-22 12:50:25,881 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:50:25" (1/1) ... [2020-11-22 12:50:25,882 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:50:25" (1/1) ... [2020-11-22 12:50:25,890 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:50:25" (1/1) ... [2020-11-22 12:50:25,898 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:50:25" (1/1) ... [2020-11-22 12:50:25,901 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:50:25" (1/1) ... [2020-11-22 12:50:25,906 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 12:50:25,907 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 12:50:25,907 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 12:50:25,908 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 12:50:25,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:50:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78b5fe8e-7b49-45ec-b6ec-0caa97d19db2/bin/utaipan/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 [2020-11-22 12:50:25,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 12:50:25,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 12:50:25,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 12:50:25,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 12:50:26,821 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 12:50:26,823 INFO L298 CfgBuilder]: Removed 78 assume(true) statements. [2020-11-22 12:50:26,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:50:26 BoogieIcfgContainer [2020-11-22 12:50:26,827 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 12:50:26,830 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 12:50:26,832 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 12:50:26,837 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 12:50:26,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:50:25" (1/3) ... [2020-11-22 12:50:26,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28f11128 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:50:26, skipping insertion in model container [2020-11-22 12:50:26,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:50:25" (2/3) ... [2020-11-22 12:50:26,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28f11128 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:50:26, skipping insertion in model container [2020-11-22 12:50:26,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:50:26" (3/3) ... [2020-11-22 12:50:26,844 INFO L111 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute.i [2020-11-22 12:50:26,858 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 12:50:26,864 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 18 error locations. [2020-11-22 12:50:26,877 INFO L253 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2020-11-22 12:50:26,911 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 12:50:26,912 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 12:50:26,912 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 12:50:26,913 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 12:50:26,913 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 12:50:26,913 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 12:50:26,913 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 12:50:26,914 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 12:50:26,946 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states. [2020-11-22 12:50:26,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-22 12:50:26,956 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:50:26,957 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:50:26,960 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:50:26,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:50:26,968 INFO L82 PathProgramCache]: Analyzing trace with hash -1726645368, now seen corresponding path program 1 times [2020-11-22 12:50:26,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:50:26,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475430167] [2020-11-22 12:50:26,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:50:27,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:50:27,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:50:27,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475430167] [2020-11-22 12:50:27,272 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:50:27,272 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-22 12:50:27,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493163442] [2020-11-22 12:50:27,278 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 12:50:27,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 12:50:27,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 12:50:27,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:50:27,304 INFO L87 Difference]: Start difference. First operand 124 states. Second operand 3 states. [2020-11-22 12:50:27,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:50:27,517 INFO L93 Difference]: Finished difference Result 221 states and 311 transitions. [2020-11-22 12:50:27,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:50:27,519 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-11-22 12:50:27,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:50:27,543 INFO L225 Difference]: With dead ends: 221 [2020-11-22 12:50:27,544 INFO L226 Difference]: Without dead ends: 100 [2020-11-22 12:50:27,548 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 [2020-11-22 12:50:27,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-11-22 12:50:27,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2020-11-22 12:50:27,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-11-22 12:50:27,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 103 transitions. [2020-11-22 12:50:27,599 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 103 transitions. Word has length 11 [2020-11-22 12:50:27,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:50:27,599 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 103 transitions. [2020-11-22 12:50:27,600 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 12:50:27,600 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 103 transitions. [2020-11-22 12:50:27,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-22 12:50:27,601 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:50:27,601 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:50:27,601 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-22 12:50:27,602 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:50:27,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:50:27,603 INFO L82 PathProgramCache]: Analyzing trace with hash -1810192701, now seen corresponding path program 1 times [2020-11-22 12:50:27,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:50:27,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378106996] [2020-11-22 12:50:27,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:50:27,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:50:27,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:50:27,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378106996] [2020-11-22 12:50:27,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:50:27,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-22 12:50:27,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078399404] [2020-11-22 12:50:27,713 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 12:50:27,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 12:50:27,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 12:50:27,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 12:50:27,714 INFO L87 Difference]: Start difference. First operand 100 states and 103 transitions. Second operand 5 states. [2020-11-22 12:50:28,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:50:28,006 INFO L93 Difference]: Finished difference Result 100 states and 103 transitions. [2020-11-22 12:50:28,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 12:50:28,007 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-11-22 12:50:28,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:50:28,009 INFO L225 Difference]: With dead ends: 100 [2020-11-22 12:50:28,009 INFO L226 Difference]: Without dead ends: 76 [2020-11-22 12:50:28,010 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 12:50:28,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-11-22 12:50:28,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-11-22 12:50:28,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-11-22 12:50:28,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 79 transitions. [2020-11-22 12:50:28,024 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 79 transitions. Word has length 13 [2020-11-22 12:50:28,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:50:28,025 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 79 transitions. [2020-11-22 12:50:28,025 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 12:50:28,025 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 79 transitions. [2020-11-22 12:50:28,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-22 12:50:28,026 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:50:28,026 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:50:28,026 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-22 12:50:28,027 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:50:28,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:50:28,027 INFO L82 PathProgramCache]: Analyzing trace with hash -1863798357, now seen corresponding path program 1 times [2020-11-22 12:50:28,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:50:28,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053212369] [2020-11-22 12:50:28,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:50:28,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:50:28,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:50:28,128 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053212369] [2020-11-22 12:50:28,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:50:28,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-22 12:50:28,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521109759] [2020-11-22 12:50:28,130 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:50:28,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 12:50:28,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:50:28,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:50:28,131 INFO L87 Difference]: Start difference. First operand 76 states and 79 transitions. Second operand 4 states. [2020-11-22 12:50:28,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:50:28,340 INFO L93 Difference]: Finished difference Result 100 states and 105 transitions. [2020-11-22 12:50:28,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 12:50:28,341 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-11-22 12:50:28,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:50:28,343 INFO L225 Difference]: With dead ends: 100 [2020-11-22 12:50:28,343 INFO L226 Difference]: Without dead ends: 88 [2020-11-22 12:50:28,344 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-22 12:50:28,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-11-22 12:50:28,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 82. [2020-11-22 12:50:28,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-11-22 12:50:28,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 87 transitions. [2020-11-22 12:50:28,368 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 87 transitions. Word has length 16 [2020-11-22 12:50:28,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:50:28,369 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 87 transitions. [2020-11-22 12:50:28,369 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:50:28,369 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 87 transitions. [2020-11-22 12:50:28,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-22 12:50:28,370 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:50:28,370 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:50:28,371 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-22 12:50:28,371 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:50:28,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:50:28,372 INFO L82 PathProgramCache]: Analyzing trace with hash -1258820438, now seen corresponding path program 1 times [2020-11-22 12:50:28,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:50:28,372 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998044387] [2020-11-22 12:50:28,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:50:28,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:50:28,529 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-22 12:50:28,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998044387] [2020-11-22 12:50:28,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632684998] [2020-11-22 12:50:28,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78b5fe8e-7b49-45ec-b6ec-0caa97d19db2/bin/utaipan/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 [2020-11-22 12:50:28,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:50:28,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-22 12:50:28,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:50:28,778 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-22 12:50:28,893 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-22 12:50:28,894 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:50:28,920 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-22 12:50:28,948 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-22 12:50:28,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [974029977] [2020-11-22 12:50:28,981 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2020-11-22 12:50:28,981 INFO L166 IcfgInterpreter]: Building call graph [2020-11-22 12:50:28,987 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-22 12:50:28,994 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-22 12:50:28,997 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-22 12:50:29,521 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-11-22 12:50:29,938 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-22 12:50:30,105 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 36 [2020-11-22 12:50:30,284 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2020-11-22 12:50:30,468 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-11-22 12:50:30,737 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2020-11-22 12:50:30,979 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 52 [2020-11-22 12:50:31,221 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 51 [2020-11-22 12:50:31,481 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 50 [2020-11-22 12:50:31,743 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 49 [2020-11-22 12:50:32,097 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2020-11-22 12:50:32,718 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 62 [2020-11-22 12:50:33,059 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2020-11-22 12:50:33,521 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 44 [2020-11-22 12:50:33,736 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-22 12:50:33,737 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-11-22 12:50:33,737 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2020-11-22 12:50:33,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354310222] [2020-11-22 12:50:33,738 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-22 12:50:33,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 12:50:33,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-22 12:50:33,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2020-11-22 12:50:33,739 INFO L87 Difference]: Start difference. First operand 82 states and 87 transitions. Second operand 6 states. [2020-11-22 12:50:33,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:50:33,966 INFO L93 Difference]: Finished difference Result 88 states and 93 transitions. [2020-11-22 12:50:33,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-22 12:50:33,967 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-11-22 12:50:33,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:50:33,968 INFO L225 Difference]: With dead ends: 88 [2020-11-22 12:50:33,968 INFO L226 Difference]: Without dead ends: 70 [2020-11-22 12:50:33,969 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 54 SyntacticMatches, 14 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2020-11-22 12:50:33,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-11-22 12:50:33,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 55. [2020-11-22 12:50:33,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-11-22 12:50:33,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 58 transitions. [2020-11-22 12:50:33,977 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 58 transitions. Word has length 27 [2020-11-22 12:50:33,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:50:33,977 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 58 transitions. [2020-11-22 12:50:33,977 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-22 12:50:33,977 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 58 transitions. [2020-11-22 12:50:33,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-11-22 12:50:33,978 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:50:33,979 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] [2020-11-22 12:50:34,199 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2020-11-22 12:50:34,199 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:50:34,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:50:34,200 INFO L82 PathProgramCache]: Analyzing trace with hash 722501347, now seen corresponding path program 1 times [2020-11-22 12:50:34,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:50:34,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206420850] [2020-11-22 12:50:34,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:50:34,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:50:34,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:50:34,263 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206420850] [2020-11-22 12:50:34,263 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:50:34,263 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-22 12:50:34,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33414920] [2020-11-22 12:50:34,264 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 12:50:34,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 12:50:34,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 12:50:34,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:50:34,265 INFO L87 Difference]: Start difference. First operand 55 states and 58 transitions. Second operand 3 states. [2020-11-22 12:50:34,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:50:34,345 INFO L93 Difference]: Finished difference Result 88 states and 92 transitions. [2020-11-22 12:50:34,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:50:34,346 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 39 [2020-11-22 12:50:34,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:50:34,347 INFO L225 Difference]: With dead ends: 88 [2020-11-22 12:50:34,347 INFO L226 Difference]: Without dead ends: 55 [2020-11-22 12:50:34,348 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 [2020-11-22 12:50:34,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-11-22 12:50:34,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-11-22 12:50:34,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-11-22 12:50:34,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 57 transitions. [2020-11-22 12:50:34,356 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 57 transitions. Word has length 39 [2020-11-22 12:50:34,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:50:34,356 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 57 transitions. [2020-11-22 12:50:34,357 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 12:50:34,357 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2020-11-22 12:50:34,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-11-22 12:50:34,358 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:50:34,358 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] [2020-11-22 12:50:34,359 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-11-22 12:50:34,359 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:50:34,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:50:34,360 INFO L82 PathProgramCache]: Analyzing trace with hash -113722665, now seen corresponding path program 1 times [2020-11-22 12:50:34,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:50:34,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041640267] [2020-11-22 12:50:34,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:50:34,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:50:34,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:50:34,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041640267] [2020-11-22 12:50:34,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:50:34,436 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-22 12:50:34,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078639769] [2020-11-22 12:50:34,436 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:50:34,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 12:50:34,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:50:34,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:50:34,438 INFO L87 Difference]: Start difference. First operand 55 states and 57 transitions. Second operand 4 states. [2020-11-22 12:50:34,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:50:34,533 INFO L93 Difference]: Finished difference Result 57 states and 59 transitions. [2020-11-22 12:50:34,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 12:50:34,533 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2020-11-22 12:50:34,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:50:34,534 INFO L225 Difference]: With dead ends: 57 [2020-11-22 12:50:34,535 INFO L226 Difference]: Without dead ends: 54 [2020-11-22 12:50:34,535 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-22 12:50:34,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-11-22 12:50:34,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 52. [2020-11-22 12:50:34,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-11-22 12:50:34,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 54 transitions. [2020-11-22 12:50:34,541 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 54 transitions. Word has length 40 [2020-11-22 12:50:34,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:50:34,542 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 54 transitions. [2020-11-22 12:50:34,542 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:50:34,542 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2020-11-22 12:50:34,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-11-22 12:50:34,548 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:50:34,548 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] [2020-11-22 12:50:34,549 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2020-11-22 12:50:34,549 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:50:34,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:50:34,550 INFO L82 PathProgramCache]: Analyzing trace with hash -1984033498, now seen corresponding path program 1 times [2020-11-22 12:50:34,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:50:34,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062943101] [2020-11-22 12:50:34,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:50:34,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:50:34,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:50:34,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062943101] [2020-11-22 12:50:34,649 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:50:34,649 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-22 12:50:34,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139095086] [2020-11-22 12:50:34,649 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 12:50:34,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 12:50:34,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 12:50:34,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 12:50:34,650 INFO L87 Difference]: Start difference. First operand 52 states and 54 transitions. Second operand 5 states. [2020-11-22 12:50:34,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:50:34,765 INFO L93 Difference]: Finished difference Result 59 states and 62 transitions. [2020-11-22 12:50:34,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-22 12:50:34,766 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42 [2020-11-22 12:50:34,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:50:34,766 INFO L225 Difference]: With dead ends: 59 [2020-11-22 12:50:34,766 INFO L226 Difference]: Without dead ends: 0 [2020-11-22 12:50:34,767 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-22 12:50:34,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-22 12:50:34,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-22 12:50:34,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-22 12:50:34,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-22 12:50:34,768 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2020-11-22 12:50:34,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:50:34,768 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-22 12:50:34,768 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 12:50:34,768 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-22 12:50:34,768 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-22 12:50:34,768 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2020-11-22 12:50:34,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-22 12:50:35,314 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 22 [2020-11-22 12:50:35,432 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,432 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,433 INFO L274 CegarLoopResult]: For program point L69(lines 69 75) no Hoare annotation was computed. [2020-11-22 12:50:35,433 INFO L274 CegarLoopResult]: For program point L36(lines 25 83) no Hoare annotation was computed. [2020-11-22 12:50:35,433 INFO L270 CegarLoopResult]: At program point L69-1(lines 69 75) the Hoare annotation is: (let ((.cse0 (<= 1 ULTIMATE.start_main_~cp~0)) (.cse1 (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) (.cse2 (< 0 (+ ULTIMATE.start_main_~scheme~0 1))) (.cse3 (< (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0))) (or (and .cse0 .cse1 (= ULTIMATE.start_main_~c~0 0) .cse2 .cse3) (and .cse0 .cse1 .cse2 (<= 1 ULTIMATE.start_main_~c~0) .cse3))) [2020-11-22 12:50:35,433 INFO L274 CegarLoopResult]: For program point L37(lines 25 83) no Hoare annotation was computed. [2020-11-22 12:50:35,433 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,433 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,434 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,434 INFO L274 CegarLoopResult]: For program point L44(lines 44 80) no Hoare annotation was computed. [2020-11-22 12:50:35,434 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,434 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,434 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,434 INFO L274 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,434 INFO L274 CegarLoopResult]: For program point L12-3(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,434 INFO L274 CegarLoopResult]: For program point L12-4(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,434 INFO L274 CegarLoopResult]: For program point L12-6(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,434 INFO L274 CegarLoopResult]: For program point L12-7(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,435 INFO L274 CegarLoopResult]: For program point L12-8(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,435 INFO L274 CegarLoopResult]: For program point L12-10(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,435 INFO L274 CegarLoopResult]: For program point L12-11(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,435 INFO L274 CegarLoopResult]: For program point L12-12(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,435 INFO L274 CegarLoopResult]: For program point L12-14(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,435 INFO L274 CegarLoopResult]: For program point L12-15(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,435 INFO L274 CegarLoopResult]: For program point L12-16(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,435 INFO L274 CegarLoopResult]: For program point L12-18(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,435 INFO L274 CegarLoopResult]: For program point L12-19(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,435 INFO L274 CegarLoopResult]: For program point L12-20(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,435 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,436 INFO L274 CegarLoopResult]: For program point L12-22(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,436 INFO L274 CegarLoopResult]: For program point L12-23(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,436 INFO L274 CegarLoopResult]: For program point L12-24(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,436 INFO L274 CegarLoopResult]: For program point L12-26(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,436 INFO L274 CegarLoopResult]: For program point L12-27(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,436 INFO L274 CegarLoopResult]: For program point L12-28(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,436 INFO L274 CegarLoopResult]: For program point L12-30(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,436 INFO L274 CegarLoopResult]: For program point L12-31(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,436 INFO L274 CegarLoopResult]: For program point L12-32(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,436 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,436 INFO L274 CegarLoopResult]: For program point L12-34(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,437 INFO L274 CegarLoopResult]: For program point L12-35(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,437 INFO L274 CegarLoopResult]: For program point L12-36(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,437 INFO L274 CegarLoopResult]: For program point L12-38(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,437 INFO L274 CegarLoopResult]: For program point L12-39(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,437 INFO L274 CegarLoopResult]: For program point L12-40(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,437 INFO L274 CegarLoopResult]: For program point L12-42(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,437 INFO L274 CegarLoopResult]: For program point L12-43(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,437 INFO L274 CegarLoopResult]: For program point L12-44(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,437 INFO L274 CegarLoopResult]: For program point L12-46(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,437 INFO L274 CegarLoopResult]: For program point L12-47(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,437 INFO L274 CegarLoopResult]: For program point L12-48(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,438 INFO L274 CegarLoopResult]: For program point L12-50(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,438 INFO L274 CegarLoopResult]: For program point L12-51(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,438 INFO L274 CegarLoopResult]: For program point L12-52(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,438 INFO L274 CegarLoopResult]: For program point L12-54(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,438 INFO L274 CegarLoopResult]: For program point L12-55(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,438 INFO L274 CegarLoopResult]: For program point L12-56(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,438 INFO L274 CegarLoopResult]: For program point L12-58(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,438 INFO L274 CegarLoopResult]: For program point L12-59(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,438 INFO L274 CegarLoopResult]: For program point L12-60(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,438 INFO L270 CegarLoopResult]: At program point L47-1(lines 17 52) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~cp~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (< 0 (+ ULTIMATE.start_main_~scheme~0 1)) (< ULTIMATE.start_main_~cp~0 ULTIMATE.start_main_~urilen~0)) [2020-11-22 12:50:35,444 INFO L274 CegarLoopResult]: For program point L12-62(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,444 INFO L274 CegarLoopResult]: For program point L47-2(lines 47 52) no Hoare annotation was computed. [2020-11-22 12:50:35,444 INFO L274 CegarLoopResult]: For program point L12-63(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,445 INFO L274 CegarLoopResult]: For program point L12-64(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,445 INFO L274 CegarLoopResult]: For program point L12-66(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,446 INFO L274 CegarLoopResult]: For program point L12-67(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,446 INFO L274 CegarLoopResult]: For program point L12-68(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,446 INFO L274 CegarLoopResult]: For program point L12-70(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,446 INFO L274 CegarLoopResult]: For program point L12-71(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,446 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,447 INFO L277 CegarLoopResult]: At program point L81(lines 25 83) the Hoare annotation is: true [2020-11-22 12:50:35,447 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-11-22 12:50:35,447 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,447 INFO L277 CegarLoopResult]: At program point L82(lines 24 83) the Hoare annotation is: true [2020-11-22 12:50:35,447 INFO L274 CegarLoopResult]: For program point L18(lines 18 20) no Hoare annotation was computed. [2020-11-22 12:50:35,447 INFO L270 CegarLoopResult]: At program point L18-2(lines 17 22) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~cp~0) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (< 0 (+ ULTIMATE.start_main_~scheme~0 1)) (< ULTIMATE.start_main_~cp~0 ULTIMATE.start_main_~urilen~0)) [2020-11-22 12:50:35,448 INFO L274 CegarLoopResult]: For program point L18-3(lines 18 20) no Hoare annotation was computed. [2020-11-22 12:50:35,449 INFO L270 CegarLoopResult]: At program point L18-5(lines 17 22) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~cp~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (< 0 (+ ULTIMATE.start_main_~scheme~0 1)) (< ULTIMATE.start_main_~cp~0 ULTIMATE.start_main_~urilen~0)) [2020-11-22 12:50:35,449 INFO L274 CegarLoopResult]: For program point L18-6(lines 18 20) no Hoare annotation was computed. [2020-11-22 12:50:35,450 INFO L270 CegarLoopResult]: At program point L18-8(lines 17 22) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~cp~0) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (< 0 (+ ULTIMATE.start_main_~scheme~0 1)) (< ULTIMATE.start_main_~cp~0 ULTIMATE.start_main_~urilen~0)) [2020-11-22 12:50:35,450 INFO L274 CegarLoopResult]: For program point L18-9(lines 18 20) no Hoare annotation was computed. [2020-11-22 12:50:35,450 INFO L274 CegarLoopResult]: For program point L18-12(lines 18 20) no Hoare annotation was computed. [2020-11-22 12:50:35,450 INFO L270 CegarLoopResult]: At program point L18-14(lines 17 22) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~cp~0) (< 0 (+ ULTIMATE.start_main_~scheme~0 1)) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (< (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0)) [2020-11-22 12:50:35,451 INFO L274 CegarLoopResult]: For program point L18-15(lines 18 20) no Hoare annotation was computed. [2020-11-22 12:50:35,451 INFO L270 CegarLoopResult]: At program point L18-17(lines 17 22) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~cp~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (< 0 (+ ULTIMATE.start_main_~scheme~0 1)) (< (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0)) [2020-11-22 12:50:35,451 INFO L274 CegarLoopResult]: For program point L18-18(lines 18 20) no Hoare annotation was computed. [2020-11-22 12:50:35,452 INFO L270 CegarLoopResult]: At program point L18-20(lines 17 22) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~cp~0) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (< 0 (+ ULTIMATE.start_main_~scheme~0 1)) (< ULTIMATE.start_main_~cp~0 ULTIMATE.start_main_~urilen~0)) [2020-11-22 12:50:35,453 INFO L274 CegarLoopResult]: For program point L18-21(lines 18 20) no Hoare annotation was computed. [2020-11-22 12:50:35,453 INFO L270 CegarLoopResult]: At program point L18-23(line 55) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~cp~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (< 0 (+ ULTIMATE.start_main_~scheme~0 1)) (< ULTIMATE.start_main_~cp~0 ULTIMATE.start_main_~urilen~0)) [2020-11-22 12:50:35,453 INFO L274 CegarLoopResult]: For program point L18-24(lines 18 20) no Hoare annotation was computed. [2020-11-22 12:50:35,453 INFO L270 CegarLoopResult]: At program point L18-26(lines 17 22) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~cp~0) (< 0 (+ ULTIMATE.start_main_~scheme~0 1)) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (< (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0)) [2020-11-22 12:50:35,454 INFO L274 CegarLoopResult]: For program point L18-27(lines 18 20) no Hoare annotation was computed. [2020-11-22 12:50:35,454 INFO L270 CegarLoopResult]: At program point L18-29(line 58) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~cp~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (< 0 (+ ULTIMATE.start_main_~scheme~0 1)) (< (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0)) [2020-11-22 12:50:35,454 INFO L274 CegarLoopResult]: For program point L18-30(lines 18 20) no Hoare annotation was computed. [2020-11-22 12:50:35,454 INFO L270 CegarLoopResult]: At program point L18-32(lines 17 22) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~cp~0) (= ULTIMATE.start_main_~c~0 0) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (< 0 (+ ULTIMATE.start_main_~scheme~0 1)) (< (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0)) [2020-11-22 12:50:35,454 INFO L274 CegarLoopResult]: For program point L18-33(lines 18 20) no Hoare annotation was computed. [2020-11-22 12:50:35,454 INFO L274 CegarLoopResult]: For program point L18-36(lines 18 20) no Hoare annotation was computed. [2020-11-22 12:50:35,455 INFO L270 CegarLoopResult]: At program point L18-38(lines 17 22) the Hoare annotation is: (let ((.cse0 (<= 1 ULTIMATE.start_main_~cp~0)) (.cse1 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse2 (< 0 (+ ULTIMATE.start_main_~scheme~0 1))) (.cse3 (<= (+ ULTIMATE.start_main_~c~0 2) ULTIMATE.start_main_~tokenlen~0)) (.cse4 (< (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0))) (or (and .cse0 .cse1 .cse2 (<= 1 ULTIMATE.start_main_~c~0) .cse3 .cse4) (and .cse0 (= ULTIMATE.start_main_~c~0 0) .cse1 .cse2 .cse3 .cse4))) [2020-11-22 12:50:35,455 INFO L274 CegarLoopResult]: For program point L18-39(lines 18 20) no Hoare annotation was computed. [2020-11-22 12:50:35,455 INFO L270 CegarLoopResult]: At program point L18-41(lines 17 22) the Hoare annotation is: (let ((.cse0 (<= 1 ULTIMATE.start_main_~cp~0)) (.cse1 (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) (.cse2 (< 0 (+ ULTIMATE.start_main_~scheme~0 1))) (.cse3 (<= (+ ULTIMATE.start_main_~c~0 2) ULTIMATE.start_main_~tokenlen~0)) (.cse4 (< (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0))) (or (and .cse0 .cse1 (= ULTIMATE.start_main_~c~0 0) .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 (<= 1 ULTIMATE.start_main_~c~0) .cse3 .cse4))) [2020-11-22 12:50:35,455 INFO L274 CegarLoopResult]: For program point L18-42(lines 18 20) no Hoare annotation was computed. [2020-11-22 12:50:35,455 INFO L270 CegarLoopResult]: At program point L18-44(lines 17 22) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~cp~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (< 0 (+ ULTIMATE.start_main_~scheme~0 1)) (<= 1 ULTIMATE.start_main_~c~0) (< (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0)) [2020-11-22 12:50:35,456 INFO L274 CegarLoopResult]: For program point L18-45(lines 18 20) no Hoare annotation was computed. [2020-11-22 12:50:35,456 INFO L270 CegarLoopResult]: At program point L18-47(lines 17 22) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~cp~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (< 0 (+ ULTIMATE.start_main_~scheme~0 1)) (<= 1 ULTIMATE.start_main_~c~0) (< (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0)) [2020-11-22 12:50:35,456 INFO L274 CegarLoopResult]: For program point L18-48(lines 18 20) no Hoare annotation was computed. [2020-11-22 12:50:35,456 INFO L270 CegarLoopResult]: At program point L18-50(lines 17 22) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~cp~0) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (< 0 (+ ULTIMATE.start_main_~scheme~0 1)) (<= 1 ULTIMATE.start_main_~c~0) (< (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0)) [2020-11-22 12:50:35,456 INFO L274 CegarLoopResult]: For program point L18-51(lines 18 20) no Hoare annotation was computed. [2020-11-22 12:50:35,456 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-22 12:50:35,457 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,457 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,457 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,457 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-22 12:50:35,457 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,457 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,457 INFO L274 CegarLoopResult]: For program point L61(lines 61 79) no Hoare annotation was computed. [2020-11-22 12:50:35,458 INFO L274 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-11-22 12:50:35,458 INFO L270 CegarLoopResult]: At program point L65-1(lines 17 77) the Hoare annotation is: (let ((.cse0 (<= 1 ULTIMATE.start_main_~cp~0)) (.cse1 (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) (.cse2 (< 0 (+ ULTIMATE.start_main_~scheme~0 1))) (.cse3 (< ULTIMATE.start_main_~cp~0 ULTIMATE.start_main_~urilen~0))) (or (and .cse0 .cse1 .cse2 (<= 1 ULTIMATE.start_main_~c~0) .cse3) (and .cse0 .cse1 (= ULTIMATE.start_main_~c~0 0) .cse2 .cse3))) [2020-11-22 12:50:35,458 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,458 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-11-22 12:50:35,458 INFO L274 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-11-22 12:50:35,458 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-22 12:50:35,459 INFO L274 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-11-22 12:50:35,459 INFO L274 CegarLoopResult]: For program point L35-1(lines 25 83) no Hoare annotation was computed. [2020-11-22 12:50:35,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:50:35 BoogieIcfgContainer [2020-11-22 12:50:35,500 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 12:50:35,501 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 12:50:35,501 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 12:50:35,501 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 12:50:35,502 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:50:26" (3/4) ... [2020-11-22 12:50:35,505 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-22 12:50:35,519 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2020-11-22 12:50:35,520 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-22 12:50:35,520 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-22 12:50:35,521 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-22 12:50:35,605 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_78b5fe8e-7b49-45ec-b6ec-0caa97d19db2/bin/utaipan/witness.graphml [2020-11-22 12:50:35,608 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 12:50:35,609 INFO L168 Benchmark]: Toolchain (without parser) took 10148.29 ms. Allocated memory was 119.5 MB in the beginning and 218.1 MB in the end (delta: 98.6 MB). Free memory was 93.9 MB in the beginning and 161.3 MB in the end (delta: -67.3 MB). Peak memory consumption was 29.6 MB. Max. memory is 16.1 GB. [2020-11-22 12:50:35,610 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 119.5 MB. Free memory is still 76.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:50:35,610 INFO L168 Benchmark]: CACSL2BoogieTranslator took 342.59 ms. Allocated memory is still 119.5 MB. Free memory was 93.9 MB in the beginning and 94.5 MB in the end (delta: -620.1 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 12:50:35,611 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.41 ms. Allocated memory is still 119.5 MB. Free memory was 94.5 MB in the beginning and 92.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:50:35,611 INFO L168 Benchmark]: Boogie Preprocessor took 39.59 ms. Allocated memory is still 119.5 MB. Free memory was 92.3 MB in the beginning and 90.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:50:35,612 INFO L168 Benchmark]: RCFGBuilder took 920.07 ms. Allocated memory was 119.5 MB in the beginning and 148.9 MB in the end (delta: 29.4 MB). Free memory was 90.4 MB in the beginning and 120.8 MB in the end (delta: -30.4 MB). Peak memory consumption was 35.8 MB. Max. memory is 16.1 GB. [2020-11-22 12:50:35,612 INFO L168 Benchmark]: TraceAbstraction took 8670.59 ms. Allocated memory was 148.9 MB in the beginning and 218.1 MB in the end (delta: 69.2 MB). Free memory was 120.2 MB in the beginning and 167.5 MB in the end (delta: -47.4 MB). Peak memory consumption was 121.7 MB. Max. memory is 16.1 GB. [2020-11-22 12:50:35,613 INFO L168 Benchmark]: Witness Printer took 107.46 ms. Allocated memory is still 218.1 MB. Free memory was 167.5 MB in the beginning and 161.3 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-22 12:50:35,618 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 119.5 MB. Free memory is still 76.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 342.59 ms. Allocated memory is still 119.5 MB. Free memory was 93.9 MB in the beginning and 94.5 MB in the end (delta: -620.1 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 57.41 ms. Allocated memory is still 119.5 MB. Free memory was 94.5 MB in the beginning and 92.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 39.59 ms. Allocated memory is still 119.5 MB. Free memory was 92.3 MB in the beginning and 90.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 920.07 ms. Allocated memory was 119.5 MB in the beginning and 148.9 MB in the end (delta: 29.4 MB). Free memory was 90.4 MB in the beginning and 120.8 MB in the end (delta: -30.4 MB). Peak memory consumption was 35.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8670.59 ms. Allocated memory was 148.9 MB in the beginning and 218.1 MB in the end (delta: 69.2 MB). Free memory was 120.2 MB in the beginning and 167.5 MB in the end (delta: -47.4 MB). Peak memory consumption was 121.7 MB. Max. memory is 16.1 GB. * Witness Printer took 107.46 ms. Allocated memory is still 218.1 MB. Free memory was 167.5 MB in the beginning and 161.3 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 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 - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - 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 18 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((1 <= cp && 1 <= cond) && 0 < scheme + 1) && cp < urilen - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: ((1 <= cp && !(0 == cond)) && 0 < scheme + 1) && cp < urilen - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (((1 <= cp && !(0 == cond)) && 0 < scheme + 1) && 1 <= c) && cp + 1 < urilen - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (((1 <= cp && c == 0) && 1 <= cond) && 0 < scheme + 1) && cp + 1 < urilen - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((1 <= cp && 1 <= cond) && 0 < scheme + 1) && cp < urilen - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (((((1 <= cp && !(0 == cond)) && c == 0) && 0 < scheme + 1) && c + 2 <= tokenlen) && cp + 1 < urilen) || (((((1 <= cp && !(0 == cond)) && 0 < scheme + 1) && 1 <= c) && c + 2 <= tokenlen) && cp + 1 < urilen) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((1 <= cp && 1 <= cond) && 0 < scheme + 1) && cp < urilen - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: ((1 <= cp && !(0 == cond)) && 0 < scheme + 1) && cp + 1 < urilen - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (((1 <= cp && 1 <= cond) && 0 < scheme + 1) && 1 <= c) && cp + 1 < urilen - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((((1 <= cp && !(0 == cond)) && 0 < scheme + 1) && 1 <= c) && cp < urilen) || ((((1 <= cp && !(0 == cond)) && c == 0) && 0 < scheme + 1) && cp < urilen) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((1 <= cp && !(0 == cond)) && 0 < scheme + 1) && cp + 1 < urilen - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (((((1 <= cp && 1 <= cond) && 0 < scheme + 1) && 1 <= c) && c + 2 <= tokenlen) && cp + 1 < urilen) || (((((1 <= cp && c == 0) && 1 <= cond) && 0 < scheme + 1) && c + 2 <= tokenlen) && cp + 1 < urilen) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((1 <= cp && !(0 == cond)) && 0 < scheme + 1) && cp < urilen - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((1 <= cp && 0 < scheme + 1) && 1 <= cond) && cp + 1 < urilen - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (((1 <= cp && !(0 == cond)) && 0 < scheme + 1) && 1 <= c) && cp + 1 < urilen - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((1 <= cp && !(0 == cond)) && 0 < scheme + 1) && cp < urilen - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((1 <= cp && 0 < scheme + 1) && 1 <= cond) && cp + 1 < urilen - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: ((((1 <= cp && !(0 == cond)) && c == 0) && 0 < scheme + 1) && cp + 1 < urilen) || ((((1 <= cp && !(0 == cond)) && 0 < scheme + 1) && 1 <= c) && cp + 1 < urilen) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 124 locations, 18 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.8s, OverallIterations: 7, TraceHistogramMax: 2, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 415 SDtfs, 268 SDslu, 359 SDs, 0 SdLazy, 328 SolverSat, 209 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 119 GetRequests, 66 SyntacticMatches, 14 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=124occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 23 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 20 LocationsWithAnnotation, 20 PreInvPairs, 48 NumberOfFragments, 433 HoareAnnotationTreeSize, 20 FomulaSimplifications, 319 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 20 FomulaSimplificationsInter, 322 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 215 NumberOfCodeBlocks, 215 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 233 ConstructedInterpolants, 0 QuantifiedInterpolants, 13790 SizeOfPredicates, 7 NumberOfNonLiveVariables, 97 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 3/9 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...