./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/verisec_OpenSER_cases1_stripFullBoth_arr.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_be04f689-312c-4fd5-8ad5-63fd244f75d5/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_be04f689-312c-4fd5-8ad5-63fd244f75d5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_be04f689-312c-4fd5-8ad5-63fd244f75d5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_be04f689-312c-4fd5-8ad5-63fd244f75d5/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/verisec_OpenSER_cases1_stripFullBoth_arr.i -s /tmp/vcloud-vcloud-master/worker/run_dir_be04f689-312c-4fd5-8ad5-63fd244f75d5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_be04f689-312c-4fd5-8ad5-63fd244f75d5/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8770e865452d763f6a1ae70a92c5caf41552c1e5 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 19:09:02,946 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:09:02,949 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:09:03,029 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:09:03,030 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:09:03,036 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:09:03,039 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:09:03,048 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:09:03,061 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:09:03,072 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:09:03,078 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:09:03,080 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:09:03,081 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:09:03,093 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:09:03,096 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:09:03,098 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:09:03,099 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:09:03,100 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:09:03,102 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:09:03,106 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:09:03,108 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:09:03,110 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:09:03,112 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:09:03,113 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:09:03,117 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:09:03,118 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:09:03,118 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:09:03,120 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:09:03,120 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:09:03,122 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:09:03,122 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:09:03,123 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:09:03,125 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:09:03,126 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:09:03,127 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:09:03,128 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:09:03,129 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:09:03,129 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:09:03,130 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:09:03,131 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:09:03,132 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:09:03,134 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_be04f689-312c-4fd5-8ad5-63fd244f75d5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 19:09:03,167 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:09:03,167 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:09:03,169 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:09:03,169 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:09:03,169 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:09:03,169 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:09:03,170 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:09:03,170 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:09:03,170 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:09:03,171 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:09:03,171 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 19:09:03,171 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:09:03,172 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 19:09:03,172 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:09:03,172 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:09:03,173 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:09:03,173 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 19:09:03,173 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:09:03,173 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:09:03,177 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:09:03,177 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 19:09:03,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:09:03,178 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:09:03,179 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:09:03,179 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 19:09:03,179 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:09:03,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 19:09:03,180 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 19:09:03,181 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:09:03,181 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_be04f689-312c-4fd5-8ad5-63fd244f75d5/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_be04f689-312c-4fd5-8ad5-63fd244f75d5/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8770e865452d763f6a1ae70a92c5caf41552c1e5 [2020-11-29 19:09:03,478 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:09:03,508 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:09:03,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:09:03,515 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:09:03,518 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:09:03,519 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_be04f689-312c-4fd5-8ad5-63fd244f75d5/bin/uautomizer/../../sv-benchmarks/c/loops/verisec_OpenSER_cases1_stripFullBoth_arr.i [2020-11-29 19:09:03,641 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_be04f689-312c-4fd5-8ad5-63fd244f75d5/bin/uautomizer/data/8c415ad54/5e2619445d1a4d7192a0026e424fbc51/FLAGe725def4c [2020-11-29 19:09:04,275 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:09:04,276 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_be04f689-312c-4fd5-8ad5-63fd244f75d5/sv-benchmarks/c/loops/verisec_OpenSER_cases1_stripFullBoth_arr.i [2020-11-29 19:09:04,283 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_be04f689-312c-4fd5-8ad5-63fd244f75d5/bin/uautomizer/data/8c415ad54/5e2619445d1a4d7192a0026e424fbc51/FLAGe725def4c [2020-11-29 19:09:04,620 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_be04f689-312c-4fd5-8ad5-63fd244f75d5/bin/uautomizer/data/8c415ad54/5e2619445d1a4d7192a0026e424fbc51 [2020-11-29 19:09:04,622 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:09:04,624 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:09:04,626 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:09:04,626 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:09:04,634 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:09:04,635 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:09:04" (1/1) ... [2020-11-29 19:09:04,637 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46565da4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:04, skipping insertion in model container [2020-11-29 19:09:04,637 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:09:04" (1/1) ... [2020-11-29 19:09:04,645 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:09:04,671 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:09:04,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:09:04,880 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:09:04,909 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:09:04,930 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:09:04,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:04 WrapperNode [2020-11-29 19:09:04,931 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:09:04,932 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:09:04,932 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:09:04,932 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:09:04,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:04" (1/1) ... [2020-11-29 19:09:04,948 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:04" (1/1) ... [2020-11-29 19:09:04,970 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:09:04,974 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:09:04,974 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:09:04,975 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:09:04,983 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:04" (1/1) ... [2020-11-29 19:09:04,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:04" (1/1) ... [2020-11-29 19:09:04,986 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:04" (1/1) ... [2020-11-29 19:09:04,986 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:04" (1/1) ... [2020-11-29 19:09:04,993 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:04" (1/1) ... [2020-11-29 19:09:04,997 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:04" (1/1) ... [2020-11-29 19:09:04,999 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:04" (1/1) ... [2020-11-29 19:09:05,002 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:09:05,003 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:09:05,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:09:05,003 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:09:05,004 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be04f689-312c-4fd5-8ad5-63fd244f75d5/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:09:05,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:09:05,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 19:09:05,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 19:09:05,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:09:05,069 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2020-11-29 19:09:05,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:09:05,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:09:05,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 19:09:05,501 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:09:05,501 INFO L298 CfgBuilder]: Removed 15 assume(true) statements. [2020-11-29 19:09:05,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:09:05 BoogieIcfgContainer [2020-11-29 19:09:05,503 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:09:05,504 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 19:09:05,504 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 19:09:05,508 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 19:09:05,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:09:04" (1/3) ... [2020-11-29 19:09:05,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10fde1e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:09:05, skipping insertion in model container [2020-11-29 19:09:05,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:04" (2/3) ... [2020-11-29 19:09:05,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10fde1e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:09:05, skipping insertion in model container [2020-11-29 19:09:05,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:09:05" (3/3) ... [2020-11-29 19:09:05,511 INFO L111 eAbstractionObserver]: Analyzing ICFG verisec_OpenSER_cases1_stripFullBoth_arr.i [2020-11-29 19:09:05,521 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 19:09:05,525 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 19:09:05,536 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 19:09:05,557 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 19:09:05,558 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 19:09:05,558 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 19:09:05,558 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:09:05,558 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:09:05,560 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 19:09:05,561 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:09:05,561 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 19:09:05,575 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-11-29 19:09:05,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-29 19:09:05,580 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:09:05,581 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:09:05,581 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:09:05,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:09:05,586 INFO L82 PathProgramCache]: Analyzing trace with hash -949620774, now seen corresponding path program 1 times [2020-11-29 19:09:05,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:09:05,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82678517] [2020-11-29 19:09:05,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:09:05,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:09:05,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:09:05,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82678517] [2020-11-29 19:09:05,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:09:05,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 19:09:05,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679200618] [2020-11-29 19:09:05,726 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 19:09:05,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:09:05,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 19:09:05,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 19:09:05,742 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2020-11-29 19:09:05,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:09:05,762 INFO L93 Difference]: Finished difference Result 70 states and 101 transitions. [2020-11-29 19:09:05,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 19:09:05,763 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2020-11-29 19:09:05,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:09:05,771 INFO L225 Difference]: With dead ends: 70 [2020-11-29 19:09:05,772 INFO L226 Difference]: Without dead ends: 31 [2020-11-29 19:09:05,775 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 19:09:05,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-11-29 19:09:05,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-11-29 19:09:05,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-11-29 19:09:05,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 40 transitions. [2020-11-29 19:09:05,810 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 40 transitions. Word has length 19 [2020-11-29 19:09:05,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:09:05,810 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 40 transitions. [2020-11-29 19:09:05,811 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 19:09:05,811 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 40 transitions. [2020-11-29 19:09:05,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-29 19:09:05,812 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:09:05,812 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] [2020-11-29 19:09:05,812 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 19:09:05,813 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:09:05,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:09:05,814 INFO L82 PathProgramCache]: Analyzing trace with hash -2114946543, now seen corresponding path program 1 times [2020-11-29 19:09:05,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:09:05,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587652883] [2020-11-29 19:09:05,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:09:05,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:09:05,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:09:05,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587652883] [2020-11-29 19:09:05,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:09:05,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:09:05,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791634992] [2020-11-29 19:09:05,927 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:09:05,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:09:05,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:09:05,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:09:05,928 INFO L87 Difference]: Start difference. First operand 31 states and 40 transitions. Second operand 3 states. [2020-11-29 19:09:05,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:09:05,979 INFO L93 Difference]: Finished difference Result 60 states and 79 transitions. [2020-11-29 19:09:05,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:09:05,980 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-11-29 19:09:05,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:09:05,981 INFO L225 Difference]: With dead ends: 60 [2020-11-29 19:09:05,981 INFO L226 Difference]: Without dead ends: 32 [2020-11-29 19:09:05,982 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:09:05,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-11-29 19:09:05,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-11-29 19:09:05,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-11-29 19:09:05,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 41 transitions. [2020-11-29 19:09:05,992 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 41 transitions. Word has length 23 [2020-11-29 19:09:05,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:09:05,993 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 41 transitions. [2020-11-29 19:09:05,993 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:09:05,993 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 41 transitions. [2020-11-29 19:09:05,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-29 19:09:05,995 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:09:05,995 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] [2020-11-29 19:09:05,996 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 19:09:05,997 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:09:05,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:09:05,999 INFO L82 PathProgramCache]: Analyzing trace with hash 591672851, now seen corresponding path program 1 times [2020-11-29 19:09:05,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:09:06,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367884168] [2020-11-29 19:09:06,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:09:06,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:09:06,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:09:06,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367884168] [2020-11-29 19:09:06,120 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:09:06,120 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 19:09:06,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127285068] [2020-11-29 19:09:06,121 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 19:09:06,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:09:06,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 19:09:06,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:09:06,123 INFO L87 Difference]: Start difference. First operand 32 states and 41 transitions. Second operand 5 states. [2020-11-29 19:09:06,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:09:06,239 INFO L93 Difference]: Finished difference Result 91 states and 119 transitions. [2020-11-29 19:09:06,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 19:09:06,243 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2020-11-29 19:09:06,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:09:06,244 INFO L225 Difference]: With dead ends: 91 [2020-11-29 19:09:06,244 INFO L226 Difference]: Without dead ends: 62 [2020-11-29 19:09:06,245 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-29 19:09:06,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-11-29 19:09:06,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 40. [2020-11-29 19:09:06,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-11-29 19:09:06,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 52 transitions. [2020-11-29 19:09:06,251 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 52 transitions. Word has length 23 [2020-11-29 19:09:06,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:09:06,251 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 52 transitions. [2020-11-29 19:09:06,252 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 19:09:06,252 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 52 transitions. [2020-11-29 19:09:06,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-29 19:09:06,253 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:09:06,253 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] [2020-11-29 19:09:06,253 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 19:09:06,253 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:09:06,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:09:06,257 INFO L82 PathProgramCache]: Analyzing trace with hash 1557333587, now seen corresponding path program 1 times [2020-11-29 19:09:06,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:09:06,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395835094] [2020-11-29 19:09:06,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:09:06,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:09:06,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:09:06,414 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395835094] [2020-11-29 19:09:06,415 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:09:06,415 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-29 19:09:06,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439254888] [2020-11-29 19:09:06,415 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-29 19:09:06,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:09:06,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 19:09:06,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-29 19:09:06,417 INFO L87 Difference]: Start difference. First operand 40 states and 52 transitions. Second operand 7 states. [2020-11-29 19:09:06,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:09:06,761 INFO L93 Difference]: Finished difference Result 148 states and 195 transitions. [2020-11-29 19:09:06,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-29 19:09:06,762 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-11-29 19:09:06,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:09:06,765 INFO L225 Difference]: With dead ends: 148 [2020-11-29 19:09:06,765 INFO L226 Difference]: Without dead ends: 102 [2020-11-29 19:09:06,766 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2020-11-29 19:09:06,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-11-29 19:09:06,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 62. [2020-11-29 19:09:06,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-11-29 19:09:06,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 83 transitions. [2020-11-29 19:09:06,785 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 83 transitions. Word has length 23 [2020-11-29 19:09:06,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:09:06,785 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 83 transitions. [2020-11-29 19:09:06,785 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-29 19:09:06,785 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 83 transitions. [2020-11-29 19:09:06,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-29 19:09:06,786 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:09:06,786 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] [2020-11-29 19:09:06,786 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 19:09:06,787 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:09:06,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:09:06,787 INFO L82 PathProgramCache]: Analyzing trace with hash 546216337, now seen corresponding path program 1 times [2020-11-29 19:09:06,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:09:06,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696201876] [2020-11-29 19:09:06,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:09:06,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:09:06,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:09:06,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696201876] [2020-11-29 19:09:06,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:09:06,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-29 19:09:06,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612453540] [2020-11-29 19:09:06,913 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 19:09:06,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:09:06,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 19:09:06,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 19:09:06,914 INFO L87 Difference]: Start difference. First operand 62 states and 83 transitions. Second operand 6 states. [2020-11-29 19:09:07,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:09:07,145 INFO L93 Difference]: Finished difference Result 105 states and 136 transitions. [2020-11-29 19:09:07,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-29 19:09:07,146 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2020-11-29 19:09:07,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:09:07,147 INFO L225 Difference]: With dead ends: 105 [2020-11-29 19:09:07,147 INFO L226 Difference]: Without dead ends: 101 [2020-11-29 19:09:07,148 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-11-29 19:09:07,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-11-29 19:09:07,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 79. [2020-11-29 19:09:07,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-11-29 19:09:07,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 106 transitions. [2020-11-29 19:09:07,165 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 106 transitions. Word has length 23 [2020-11-29 19:09:07,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:09:07,169 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 106 transitions. [2020-11-29 19:09:07,169 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 19:09:07,169 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 106 transitions. [2020-11-29 19:09:07,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-29 19:09:07,171 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:09:07,171 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] [2020-11-29 19:09:07,171 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 19:09:07,171 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:09:07,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:09:07,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1564224654, now seen corresponding path program 1 times [2020-11-29 19:09:07,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:09:07,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677228699] [2020-11-29 19:09:07,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:09:07,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:09:07,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:09:07,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677228699] [2020-11-29 19:09:07,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:09:07,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 19:09:07,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342755913] [2020-11-29 19:09:07,243 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 19:09:07,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:09:07,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 19:09:07,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:09:07,244 INFO L87 Difference]: Start difference. First operand 79 states and 106 transitions. Second operand 4 states. [2020-11-29 19:09:07,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:09:07,278 INFO L93 Difference]: Finished difference Result 132 states and 176 transitions. [2020-11-29 19:09:07,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 19:09:07,279 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-11-29 19:09:07,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:09:07,280 INFO L225 Difference]: With dead ends: 132 [2020-11-29 19:09:07,280 INFO L226 Difference]: Without dead ends: 89 [2020-11-29 19:09:07,281 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 [2020-11-29 19:09:07,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-11-29 19:09:07,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2020-11-29 19:09:07,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-11-29 19:09:07,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 116 transitions. [2020-11-29 19:09:07,290 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 116 transitions. Word has length 25 [2020-11-29 19:09:07,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:09:07,291 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 116 transitions. [2020-11-29 19:09:07,291 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 19:09:07,291 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 116 transitions. [2020-11-29 19:09:07,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-29 19:09:07,297 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:09:07,297 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] [2020-11-29 19:09:07,298 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 19:09:07,298 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:09:07,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:09:07,298 INFO L82 PathProgramCache]: Analyzing trace with hash 1822390092, now seen corresponding path program 1 times [2020-11-29 19:09:07,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:09:07,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833077007] [2020-11-29 19:09:07,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:09:07,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:09:07,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:09:07,362 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833077007] [2020-11-29 19:09:07,362 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:09:07,362 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-29 19:09:07,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552110423] [2020-11-29 19:09:07,363 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 19:09:07,363 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:09:07,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 19:09:07,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 19:09:07,364 INFO L87 Difference]: Start difference. First operand 89 states and 116 transitions. Second operand 6 states. [2020-11-29 19:09:07,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:09:07,473 INFO L93 Difference]: Finished difference Result 193 states and 249 transitions. [2020-11-29 19:09:07,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 19:09:07,473 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-11-29 19:09:07,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:09:07,474 INFO L225 Difference]: With dead ends: 193 [2020-11-29 19:09:07,474 INFO L226 Difference]: Without dead ends: 116 [2020-11-29 19:09:07,475 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-11-29 19:09:07,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-11-29 19:09:07,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 87. [2020-11-29 19:09:07,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-11-29 19:09:07,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 109 transitions. [2020-11-29 19:09:07,494 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 109 transitions. Word has length 25 [2020-11-29 19:09:07,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:09:07,494 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 109 transitions. [2020-11-29 19:09:07,494 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 19:09:07,494 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 109 transitions. [2020-11-29 19:09:07,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-29 19:09:07,495 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:09:07,495 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:09:07,496 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 19:09:07,496 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:09:07,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:09:07,496 INFO L82 PathProgramCache]: Analyzing trace with hash 895915798, now seen corresponding path program 1 times [2020-11-29 19:09:07,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:09:07,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380482663] [2020-11-29 19:09:07,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:09:07,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:09:07,568 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:09:07,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380482663] [2020-11-29 19:09:07,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [700052081] [2020-11-29 19:09:07,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be04f689-312c-4fd5-8ad5-63fd244f75d5/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 19:09:07,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:09:07,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 19:09:07,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:09:07,702 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:09:07,727 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:09:07,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 19:09:07,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2020-11-29 19:09:07,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825467018] [2020-11-29 19:09:07,730 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-29 19:09:07,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:09:07,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 19:09:07,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-29 19:09:07,731 INFO L87 Difference]: Start difference. First operand 87 states and 109 transitions. Second operand 7 states. [2020-11-29 19:09:07,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:09:07,916 INFO L93 Difference]: Finished difference Result 228 states and 281 transitions. [2020-11-29 19:09:07,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-29 19:09:07,918 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2020-11-29 19:09:07,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:09:07,919 INFO L225 Difference]: With dead ends: 228 [2020-11-29 19:09:07,919 INFO L226 Difference]: Without dead ends: 163 [2020-11-29 19:09:07,920 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-11-29 19:09:07,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-11-29 19:09:07,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 123. [2020-11-29 19:09:07,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-11-29 19:09:07,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 150 transitions. [2020-11-29 19:09:07,932 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 150 transitions. Word has length 30 [2020-11-29 19:09:07,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:09:07,932 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 150 transitions. [2020-11-29 19:09:07,932 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-29 19:09:07,932 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 150 transitions. [2020-11-29 19:09:07,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-11-29 19:09:07,934 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:09:07,934 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:09:08,162 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2020-11-29 19:09:08,162 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:09:08,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:09:08,163 INFO L82 PathProgramCache]: Analyzing trace with hash 267240844, now seen corresponding path program 2 times [2020-11-29 19:09:08,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:09:08,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330444203] [2020-11-29 19:09:08,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:09:08,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:09:08,343 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:09:08,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330444203] [2020-11-29 19:09:08,345 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [717985759] [2020-11-29 19:09:08,346 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be04f689-312c-4fd5-8ad5-63fd244f75d5/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 19:09:08,435 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-29 19:09:08,435 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-29 19:09:08,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-29 19:09:08,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:09:08,681 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:09:08,682 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 19:09:08,682 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 17 [2020-11-29 19:09:08,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616881706] [2020-11-29 19:09:08,683 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-11-29 19:09:08,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:09:08,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-11-29 19:09:08,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2020-11-29 19:09:08,684 INFO L87 Difference]: Start difference. First operand 123 states and 150 transitions. Second operand 17 states. [2020-11-29 19:09:09,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:09:09,373 INFO L93 Difference]: Finished difference Result 255 states and 314 transitions. [2020-11-29 19:09:09,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-29 19:09:09,374 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 35 [2020-11-29 19:09:09,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:09:09,375 INFO L225 Difference]: With dead ends: 255 [2020-11-29 19:09:09,375 INFO L226 Difference]: Without dead ends: 175 [2020-11-29 19:09:09,376 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=170, Invalid=586, Unknown=0, NotChecked=0, Total=756 [2020-11-29 19:09:09,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-11-29 19:09:09,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 116. [2020-11-29 19:09:09,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-11-29 19:09:09,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 146 transitions. [2020-11-29 19:09:09,392 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 146 transitions. Word has length 35 [2020-11-29 19:09:09,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:09:09,392 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 146 transitions. [2020-11-29 19:09:09,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-11-29 19:09:09,393 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 146 transitions. [2020-11-29 19:09:09,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-11-29 19:09:09,394 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:09:09,394 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:09:09,595 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 19:09:09,595 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:09:09,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:09:09,596 INFO L82 PathProgramCache]: Analyzing trace with hash -753827510, now seen corresponding path program 1 times [2020-11-29 19:09:09,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:09:09,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805920607] [2020-11-29 19:09:09,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:09:09,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:09:09,713 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:09:09,715 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805920607] [2020-11-29 19:09:09,715 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673753372] [2020-11-29 19:09:09,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be04f689-312c-4fd5-8ad5-63fd244f75d5/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 19:09:09,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:09:09,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-29 19:09:09,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:09:09,948 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:09:09,956 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:09:10,033 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:09:10,033 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 19:09:10,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2020-11-29 19:09:10,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925068582] [2020-11-29 19:09:10,034 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-29 19:09:10,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:09:10,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-29 19:09:10,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-11-29 19:09:10,035 INFO L87 Difference]: Start difference. First operand 116 states and 146 transitions. Second operand 16 states. [2020-11-29 19:09:10,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:09:10,615 INFO L93 Difference]: Finished difference Result 226 states and 277 transitions. [2020-11-29 19:09:10,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-11-29 19:09:10,616 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 35 [2020-11-29 19:09:10,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:09:10,618 INFO L225 Difference]: With dead ends: 226 [2020-11-29 19:09:10,618 INFO L226 Difference]: Without dead ends: 222 [2020-11-29 19:09:10,619 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=188, Invalid=514, Unknown=0, NotChecked=0, Total=702 [2020-11-29 19:09:10,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2020-11-29 19:09:10,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 135. [2020-11-29 19:09:10,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-11-29 19:09:10,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 175 transitions. [2020-11-29 19:09:10,660 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 175 transitions. Word has length 35 [2020-11-29 19:09:10,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:09:10,661 INFO L481 AbstractCegarLoop]: Abstraction has 135 states and 175 transitions. [2020-11-29 19:09:10,661 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-29 19:09:10,661 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 175 transitions. [2020-11-29 19:09:10,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-11-29 19:09:10,663 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:09:10,663 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:09:10,869 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-11-29 19:09:10,870 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:09:10,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:09:10,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1021179852, now seen corresponding path program 1 times [2020-11-29 19:09:10,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:09:10,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930827206] [2020-11-29 19:09:10,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:09:10,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:09:10,887 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:09:10,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:09:10,901 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:09:10,930 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:09:10,931 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 19:09:10,931 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-29 19:09:10,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:09:10 BoogieIcfgContainer [2020-11-29 19:09:10,978 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 19:09:10,979 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:09:10,979 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:09:10,979 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:09:10,980 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:09:05" (3/4) ... [2020-11-29 19:09:10,982 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 19:09:11,033 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_be04f689-312c-4fd5-8ad5-63fd244f75d5/bin/uautomizer/witness.graphml [2020-11-29 19:09:11,033 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:09:11,035 INFO L168 Benchmark]: Toolchain (without parser) took 6409.94 ms. Allocated memory was 102.8 MB in the beginning and 148.9 MB in the end (delta: 46.1 MB). Free memory was 72.0 MB in the beginning and 111.8 MB in the end (delta: -39.8 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. [2020-11-29 19:09:11,035 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 81.8 MB. Free memory was 41.5 MB in the beginning and 41.4 MB in the end (delta: 38.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:09:11,036 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.45 ms. Allocated memory is still 102.8 MB. Free memory was 71.8 MB in the beginning and 79.4 MB in the end (delta: -7.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:09:11,036 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.01 ms. Allocated memory is still 102.8 MB. Free memory was 79.4 MB in the beginning and 77.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:09:11,037 INFO L168 Benchmark]: Boogie Preprocessor took 27.60 ms. Allocated memory is still 102.8 MB. Free memory was 77.5 MB in the beginning and 76.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:09:11,037 INFO L168 Benchmark]: RCFGBuilder took 500.12 ms. Allocated memory is still 102.8 MB. Free memory was 75.9 MB in the beginning and 55.9 MB in the end (delta: 20.0 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-29 19:09:11,038 INFO L168 Benchmark]: TraceAbstraction took 5474.29 ms. Allocated memory was 102.8 MB in the beginning and 148.9 MB in the end (delta: 46.1 MB). Free memory was 55.5 MB in the beginning and 115.0 MB in the end (delta: -59.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:09:11,038 INFO L168 Benchmark]: Witness Printer took 54.28 ms. Allocated memory is still 148.9 MB. Free memory was 115.0 MB in the beginning and 111.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:09:11,041 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 81.8 MB. Free memory was 41.5 MB in the beginning and 41.4 MB in the end (delta: 38.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 305.45 ms. Allocated memory is still 102.8 MB. Free memory was 71.8 MB in the beginning and 79.4 MB in the end (delta: -7.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.01 ms. Allocated memory is still 102.8 MB. Free memory was 79.4 MB in the beginning and 77.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.60 ms. Allocated memory is still 102.8 MB. Free memory was 77.5 MB in the beginning and 76.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 500.12 ms. Allocated memory is still 102.8 MB. Free memory was 75.9 MB in the beginning and 55.9 MB in the end (delta: 20.0 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5474.29 ms. Allocated memory was 102.8 MB in the beginning and 148.9 MB in the end (delta: 46.1 MB). Free memory was 55.5 MB in the beginning and 115.0 MB in the end (delta: -59.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 54.28 ms. Allocated memory is still 148.9 MB. Free memory was 115.0 MB in the beginning and 111.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 12]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L85] char A [2 + 2 + 4 +1]; [L86] A[2 + 2 + 4] = 0 [L59] int start=0, i=-1, j=-1; [L60] char str2[2]; [L61] COND FALSE !(!str) [L63] i++ [L64] str[i] [L65] case 0: [L80] EXPR str[i] [L80] COND TRUE str[i] != 0 [L63] i++ [L64] str[i] [L65] case 0: [L80] EXPR str[i] [L80] COND TRUE str[i] != 0 [L63] i++ [L64] str[i] [L65] case 0: [L66] EXPR str[start] [L66] (str[start] == ' ') || (str[start] == '\t') [L66] EXPR str[start] [L66] (str[start] == ' ') || (str[start] == '\t') [L66] COND FALSE !((str[start] == ' ') || (str[start] == '\t')) [L67] EXPR str[start] [L67] COND FALSE !(str[start] == '"') [L68] j = i-1 [L69] (0 < j) && ((str[j] == ' ') || (str[j] == '\t')) [L69] EXPR str[j] [L69] EXPR (str[j] == ' ') || (str[j] == '\t') [L69] EXPR str[j] [L69] EXPR (str[j] == ' ') || (str[j] == '\t') [L69] (0 < j) && ((str[j] == ' ') || (str[j] == '\t')) [L69] COND FALSE !((0 < j) && ((str[j] == ' ') || (str[j] == '\t'))) [L70] (0 < j) && (str[j] == '"') [L70] EXPR str[j] [L70] (0 < j) && (str[j] == '"') [L70] COND FALSE !((0 < j) && (str[j] == '"')) [L71] COND TRUE start<=j [L41] return strncpy(dest,src,n); [L14] COND TRUE !(cond) [L12] COND FALSE !(0) [L12] __assert_fail ("0", "verisec_OpenSER_cases1_stripFullBoth_arr.c", 3, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.3s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 489 SDtfs, 1264 SDslu, 1417 SDs, 0 SdLazy, 1181 SolverSat, 192 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 200 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=135occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 299 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 396 NumberOfCodeBlocks, 396 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 348 ConstructedInterpolants, 0 QuantifiedInterpolants, 37910 SizeOfPredicates, 10 NumberOfNonLiveVariables, 425 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 13 InterpolantComputations, 7 PerfectInterpolantSequences, 0/40 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 incorrect! Received shutdown request...