./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label07.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2b41beb6-4846-4cda-80f5-89171ce7b69a/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_2b41beb6-4846-4cda-80f5-89171ce7b69a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2b41beb6-4846-4cda-80f5-89171ce7b69a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2b41beb6-4846-4cda-80f5-89171ce7b69a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label07.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2b41beb6-4846-4cda-80f5-89171ce7b69a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2b41beb6-4846-4cda-80f5-89171ce7b69a/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 1822dbb9c8ef20e6ea472bb60e432b1782704539 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 07:36:46,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:36:46,970 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:36:47,028 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:36:47,029 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:36:47,034 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:36:47,038 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:36:47,043 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:36:47,046 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:36:47,052 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:36:47,054 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:36:47,056 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:36:47,057 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:36:47,061 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:36:47,062 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:36:47,065 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:36:47,066 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:36:47,071 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:36:47,075 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:36:47,083 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:36:47,085 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:36:47,087 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:36:47,089 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:36:47,090 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:36:47,098 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:36:47,098 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:36:47,098 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:36:47,099 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:36:47,100 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:36:47,100 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:36:47,101 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:36:47,102 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:36:47,103 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:36:47,104 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:36:47,105 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:36:47,106 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:36:47,106 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:36:47,107 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:36:47,107 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:36:47,108 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:36:47,109 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:36:47,113 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2b41beb6-4846-4cda-80f5-89171ce7b69a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-28 07:36:47,171 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:36:47,171 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:36:47,173 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:36:47,173 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:36:47,174 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:36:47,174 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:36:47,174 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:36:47,174 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:36:47,175 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:36:47,175 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:36:47,186 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:36:47,187 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:36:47,187 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:36:47,187 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:36:47,188 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:36:47,188 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:36:47,189 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:36:47,189 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:36:47,189 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:36:47,189 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:36:47,190 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:36:47,190 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:36:47,190 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:36:47,190 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:36:47,190 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:36:47,191 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:36:47,191 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:36:47,191 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:36:47,192 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:36:47,192 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:36:47,192 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:36:47,192 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:36:47,193 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:36:47,193 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:36:47,193 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:36:47,194 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:36:47,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:36:47,194 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:36:47,194 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:36:47,194 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:36:47,195 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_2b41beb6-4846-4cda-80f5-89171ce7b69a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2b41beb6-4846-4cda-80f5-89171ce7b69a/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1822dbb9c8ef20e6ea472bb60e432b1782704539 [2020-11-28 07:36:47,491 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:36:47,538 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:36:47,541 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:36:47,542 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:36:47,543 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:36:47,544 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2b41beb6-4846-4cda-80f5-89171ce7b69a/bin/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem02_label07.c [2020-11-28 07:36:47,615 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2b41beb6-4846-4cda-80f5-89171ce7b69a/bin/utaipan/data/c260ee47b/eb5101d9ce824f438b19fa3583e77461/FLAGd70c15d64 [2020-11-28 07:36:48,293 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:36:48,294 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2b41beb6-4846-4cda-80f5-89171ce7b69a/sv-benchmarks/c/eca-rers2012/Problem02_label07.c [2020-11-28 07:36:48,324 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2b41beb6-4846-4cda-80f5-89171ce7b69a/bin/utaipan/data/c260ee47b/eb5101d9ce824f438b19fa3583e77461/FLAGd70c15d64 [2020-11-28 07:36:48,466 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2b41beb6-4846-4cda-80f5-89171ce7b69a/bin/utaipan/data/c260ee47b/eb5101d9ce824f438b19fa3583e77461 [2020-11-28 07:36:48,470 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:36:48,474 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:36:48,479 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:36:48,480 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:36:48,494 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:36:48,496 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:36:48" (1/1) ... [2020-11-28 07:36:48,514 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a2a92e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:36:48, skipping insertion in model container [2020-11-28 07:36:48,515 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:36:48" (1/1) ... [2020-11-28 07:36:48,524 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:36:48,625 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:36:49,085 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:36:49,111 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:36:49,298 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:36:49,330 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:36:49,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:36:49 WrapperNode [2020-11-28 07:36:49,333 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:36:49,335 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:36:49,335 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:36:49,336 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:36:49,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:36:49" (1/1) ... [2020-11-28 07:36:49,379 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:36:49" (1/1) ... [2020-11-28 07:36:49,474 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:36:49,475 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:36:49,475 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:36:49,475 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:36:49,485 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:36:49" (1/1) ... [2020-11-28 07:36:49,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:36:49" (1/1) ... [2020-11-28 07:36:49,499 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:36:49" (1/1) ... [2020-11-28 07:36:49,499 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:36:49" (1/1) ... [2020-11-28 07:36:49,535 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:36:49" (1/1) ... [2020-11-28 07:36:49,559 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:36:49" (1/1) ... [2020-11-28 07:36:49,576 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:36:49" (1/1) ... [2020-11-28 07:36:49,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:36:49,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:36:49,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:36:49,596 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:36:49,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:36:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2b41beb6-4846-4cda-80f5-89171ce7b69a/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 [2020-11-28 07:36:49,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 07:36:49,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:36:49,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:36:49,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:36:53,098 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:36:53,099 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 07:36:53,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:36:53 BoogieIcfgContainer [2020-11-28 07:36:53,103 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:36:53,105 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:36:53,106 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:36:53,110 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:36:53,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:36:48" (1/3) ... [2020-11-28 07:36:53,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aa0ab3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:36:53, skipping insertion in model container [2020-11-28 07:36:53,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:36:49" (2/3) ... [2020-11-28 07:36:53,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aa0ab3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:36:53, skipping insertion in model container [2020-11-28 07:36:53,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:36:53" (3/3) ... [2020-11-28 07:36:53,114 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label07.c [2020-11-28 07:36:53,130 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:36:53,135 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 07:36:53,151 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 07:36:53,179 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:36:53,180 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:36:53,180 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:36:53,180 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:36:53,181 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:36:53,181 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:36:53,181 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:36:53,181 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:36:53,199 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2020-11-28 07:36:53,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-11-28 07:36:53,209 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:36:53,210 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:36:53,211 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:36:53,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:36:53,218 INFO L82 PathProgramCache]: Analyzing trace with hash 354714929, now seen corresponding path program 1 times [2020-11-28 07:36:53,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:36:53,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969225806] [2020-11-28 07:36:53,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:36:53,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:36:53,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:36:53,726 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969225806] [2020-11-28 07:36:53,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:36:53,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 07:36:53,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16812084] [2020-11-28 07:36:53,735 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:36:53,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:36:53,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:36:53,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:36:53,757 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 3 states. [2020-11-28 07:36:54,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:36:54,893 INFO L93 Difference]: Finished difference Result 251 states and 482 transitions. [2020-11-28 07:36:54,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:36:54,895 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 80 [2020-11-28 07:36:54,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:36:54,925 INFO L225 Difference]: With dead ends: 251 [2020-11-28 07:36:54,925 INFO L226 Difference]: Without dead ends: 163 [2020-11-28 07:36:54,929 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:36:54,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-11-28 07:36:55,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2020-11-28 07:36:55,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-11-28 07:36:55,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 298 transitions. [2020-11-28 07:36:55,030 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 298 transitions. Word has length 80 [2020-11-28 07:36:55,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:36:55,033 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 298 transitions. [2020-11-28 07:36:55,033 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:36:55,033 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 298 transitions. [2020-11-28 07:36:55,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-11-28 07:36:55,043 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:36:55,043 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:36:55,044 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 07:36:55,044 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:36:55,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:36:55,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1094102628, now seen corresponding path program 1 times [2020-11-28 07:36:55,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:36:55,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764294609] [2020-11-28 07:36:55,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:36:55,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:36:55,439 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:36:55,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764294609] [2020-11-28 07:36:55,440 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:36:55,441 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 07:36:55,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117947862] [2020-11-28 07:36:55,443 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 07:36:55,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:36:55,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 07:36:55,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:36:55,447 INFO L87 Difference]: Start difference. First operand 163 states and 298 transitions. Second operand 4 states. [2020-11-28 07:36:56,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:36:56,605 INFO L93 Difference]: Finished difference Result 563 states and 1044 transitions. [2020-11-28 07:36:56,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 07:36:56,605 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 84 [2020-11-28 07:36:56,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:36:56,609 INFO L225 Difference]: With dead ends: 563 [2020-11-28 07:36:56,609 INFO L226 Difference]: Without dead ends: 323 [2020-11-28 07:36:56,611 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:36:56,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-11-28 07:36:56,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2020-11-28 07:36:56,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2020-11-28 07:36:56,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 522 transitions. [2020-11-28 07:36:56,633 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 522 transitions. Word has length 84 [2020-11-28 07:36:56,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:36:56,633 INFO L481 AbstractCegarLoop]: Abstraction has 323 states and 522 transitions. [2020-11-28 07:36:56,633 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 07:36:56,634 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 522 transitions. [2020-11-28 07:36:56,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-11-28 07:36:56,637 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:36:56,637 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:36:56,645 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 07:36:56,645 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:36:56,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:36:56,646 INFO L82 PathProgramCache]: Analyzing trace with hash -1873937458, now seen corresponding path program 1 times [2020-11-28 07:36:56,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:36:56,646 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804234372] [2020-11-28 07:36:56,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:36:56,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:36:56,749 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:36:56,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804234372] [2020-11-28 07:36:56,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:36:56,750 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 07:36:56,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508407735] [2020-11-28 07:36:56,751 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:36:56,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:36:56,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:36:56,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:36:56,752 INFO L87 Difference]: Start difference. First operand 323 states and 522 transitions. Second operand 3 states. [2020-11-28 07:36:57,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:36:57,340 INFO L93 Difference]: Finished difference Result 965 states and 1563 transitions. [2020-11-28 07:36:57,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:36:57,344 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 98 [2020-11-28 07:36:57,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:36:57,349 INFO L225 Difference]: With dead ends: 965 [2020-11-28 07:36:57,349 INFO L226 Difference]: Without dead ends: 643 [2020-11-28 07:36:57,352 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:36:57,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2020-11-28 07:36:57,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 643. [2020-11-28 07:36:57,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2020-11-28 07:36:57,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 877 transitions. [2020-11-28 07:36:57,407 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 877 transitions. Word has length 98 [2020-11-28 07:36:57,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:36:57,407 INFO L481 AbstractCegarLoop]: Abstraction has 643 states and 877 transitions. [2020-11-28 07:36:57,408 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:36:57,408 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 877 transitions. [2020-11-28 07:36:57,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-11-28 07:36:57,414 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:36:57,415 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:36:57,415 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 07:36:57,416 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:36:57,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:36:57,417 INFO L82 PathProgramCache]: Analyzing trace with hash 242431687, now seen corresponding path program 1 times [2020-11-28 07:36:57,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:36:57,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409400305] [2020-11-28 07:36:57,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:36:57,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:36:57,500 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:36:57,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409400305] [2020-11-28 07:36:57,502 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:36:57,502 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 07:36:57,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947345539] [2020-11-28 07:36:57,503 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:36:57,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:36:57,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:36:57,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:36:57,508 INFO L87 Difference]: Start difference. First operand 643 states and 877 transitions. Second operand 3 states. [2020-11-28 07:36:58,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:36:58,081 INFO L93 Difference]: Finished difference Result 1605 states and 2273 transitions. [2020-11-28 07:36:58,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:36:58,081 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2020-11-28 07:36:58,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:36:58,086 INFO L225 Difference]: With dead ends: 1605 [2020-11-28 07:36:58,086 INFO L226 Difference]: Without dead ends: 963 [2020-11-28 07:36:58,087 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:36:58,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2020-11-28 07:36:58,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 963. [2020-11-28 07:36:58,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 963 states. [2020-11-28 07:36:58,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1356 transitions. [2020-11-28 07:36:58,126 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1356 transitions. Word has length 103 [2020-11-28 07:36:58,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:36:58,128 INFO L481 AbstractCegarLoop]: Abstraction has 963 states and 1356 transitions. [2020-11-28 07:36:58,128 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:36:58,129 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1356 transitions. [2020-11-28 07:36:58,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-11-28 07:36:58,138 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:36:58,139 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:36:58,140 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 07:36:58,140 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:36:58,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:36:58,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1369818396, now seen corresponding path program 1 times [2020-11-28 07:36:58,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:36:58,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304473855] [2020-11-28 07:36:58,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:36:58,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:36:58,372 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 115 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:36:58,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304473855] [2020-11-28 07:36:58,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006873635] [2020-11-28 07:36:58,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2b41beb6-4846-4cda-80f5-89171ce7b69a/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 [2020-11-28 07:36:58,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:36:58,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 07:36:58,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:36:58,858 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-11-28 07:36:58,859 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:36:58,972 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-11-28 07:36:58,972 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2020-11-28 07:36:58,973 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4] total 5 [2020-11-28 07:36:58,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207046059] [2020-11-28 07:36:58,975 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:36:58,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:36:58,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:36:58,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-28 07:36:58,977 INFO L87 Difference]: Start difference. First operand 963 states and 1356 transitions. Second operand 3 states. [2020-11-28 07:36:59,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:36:59,711 INFO L93 Difference]: Finished difference Result 2805 states and 3980 transitions. [2020-11-28 07:36:59,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:36:59,711 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2020-11-28 07:36:59,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:36:59,724 INFO L225 Difference]: With dead ends: 2805 [2020-11-28 07:36:59,724 INFO L226 Difference]: Without dead ends: 1843 [2020-11-28 07:36:59,726 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 354 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-28 07:36:59,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1843 states. [2020-11-28 07:36:59,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1843 to 1843. [2020-11-28 07:36:59,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1843 states. [2020-11-28 07:36:59,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1843 states to 1843 states and 2544 transitions. [2020-11-28 07:36:59,784 INFO L78 Accepts]: Start accepts. Automaton has 1843 states and 2544 transitions. Word has length 178 [2020-11-28 07:36:59,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:36:59,786 INFO L481 AbstractCegarLoop]: Abstraction has 1843 states and 2544 transitions. [2020-11-28 07:36:59,787 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:36:59,787 INFO L276 IsEmpty]: Start isEmpty. Operand 1843 states and 2544 transitions. [2020-11-28 07:36:59,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-11-28 07:36:59,796 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:36:59,797 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:37:00,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 07:37:00,013 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:37:00,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:37:00,014 INFO L82 PathProgramCache]: Analyzing trace with hash 1382785611, now seen corresponding path program 1 times [2020-11-28 07:37:00,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:37:00,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896500955] [2020-11-28 07:37:00,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:37:00,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:37:00,206 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-11-28 07:37:00,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896500955] [2020-11-28 07:37:00,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:37:00,211 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 07:37:00,211 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933819849] [2020-11-28 07:37:00,212 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:37:00,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:37:00,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:37:00,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:37:00,217 INFO L87 Difference]: Start difference. First operand 1843 states and 2544 transitions. Second operand 3 states. [2020-11-28 07:37:00,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:37:00,860 INFO L93 Difference]: Finished difference Result 4245 states and 5897 transitions. [2020-11-28 07:37:00,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:37:00,861 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 204 [2020-11-28 07:37:00,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:37:00,876 INFO L225 Difference]: With dead ends: 4245 [2020-11-28 07:37:00,876 INFO L226 Difference]: Without dead ends: 2083 [2020-11-28 07:37:00,882 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:37:00,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2083 states. [2020-11-28 07:37:00,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2083 to 2083. [2020-11-28 07:37:00,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2083 states. [2020-11-28 07:37:00,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2083 states to 2083 states and 2434 transitions. [2020-11-28 07:37:00,943 INFO L78 Accepts]: Start accepts. Automaton has 2083 states and 2434 transitions. Word has length 204 [2020-11-28 07:37:00,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:37:00,944 INFO L481 AbstractCegarLoop]: Abstraction has 2083 states and 2434 transitions. [2020-11-28 07:37:00,944 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:37:00,944 INFO L276 IsEmpty]: Start isEmpty. Operand 2083 states and 2434 transitions. [2020-11-28 07:37:00,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-11-28 07:37:00,953 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:37:00,953 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:37:00,953 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 07:37:00,954 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:37:00,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:37:00,954 INFO L82 PathProgramCache]: Analyzing trace with hash 991441763, now seen corresponding path program 1 times [2020-11-28 07:37:00,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:37:00,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484877637] [2020-11-28 07:37:00,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:37:00,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:37:01,232 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2020-11-28 07:37:01,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484877637] [2020-11-28 07:37:01,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:37:01,234 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 07:37:01,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248404180] [2020-11-28 07:37:01,235 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 07:37:01,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:37:01,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 07:37:01,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-28 07:37:01,237 INFO L87 Difference]: Start difference. First operand 2083 states and 2434 transitions. Second operand 5 states. [2020-11-28 07:37:02,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:37:02,218 INFO L93 Difference]: Finished difference Result 4403 states and 5119 transitions. [2020-11-28 07:37:02,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 07:37:02,221 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 225 [2020-11-28 07:37:02,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:37:02,236 INFO L225 Difference]: With dead ends: 4403 [2020-11-28 07:37:02,236 INFO L226 Difference]: Without dead ends: 2321 [2020-11-28 07:37:02,239 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-28 07:37:02,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2321 states. [2020-11-28 07:37:02,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2321 to 2163. [2020-11-28 07:37:02,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2163 states. [2020-11-28 07:37:02,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2163 states to 2163 states and 2517 transitions. [2020-11-28 07:37:02,313 INFO L78 Accepts]: Start accepts. Automaton has 2163 states and 2517 transitions. Word has length 225 [2020-11-28 07:37:02,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:37:02,313 INFO L481 AbstractCegarLoop]: Abstraction has 2163 states and 2517 transitions. [2020-11-28 07:37:02,313 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 07:37:02,314 INFO L276 IsEmpty]: Start isEmpty. Operand 2163 states and 2517 transitions. [2020-11-28 07:37:02,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-11-28 07:37:02,321 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:37:02,321 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:37:02,322 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 07:37:02,322 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:37:02,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:37:02,322 INFO L82 PathProgramCache]: Analyzing trace with hash 732035179, now seen corresponding path program 1 times [2020-11-28 07:37:02,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:37:02,323 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645475258] [2020-11-28 07:37:02,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:37:02,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:37:02,551 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 265 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-11-28 07:37:02,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645475258] [2020-11-28 07:37:02,552 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:37:02,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 07:37:02,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493839977] [2020-11-28 07:37:02,553 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:37:02,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:37:02,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:37:02,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:37:02,554 INFO L87 Difference]: Start difference. First operand 2163 states and 2517 transitions. Second operand 3 states. [2020-11-28 07:37:03,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:37:03,096 INFO L93 Difference]: Finished difference Result 4083 states and 4761 transitions. [2020-11-28 07:37:03,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:37:03,097 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 249 [2020-11-28 07:37:03,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:37:03,098 INFO L225 Difference]: With dead ends: 4083 [2020-11-28 07:37:03,098 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 07:37:03,103 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:37:03,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 07:37:03,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 07:37:03,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 07:37:03,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 07:37:03,104 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 249 [2020-11-28 07:37:03,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:37:03,104 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 07:37:03,104 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:37:03,104 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 07:37:03,104 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 07:37:03,104 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 07:37:03,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 07:37:03,347 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 27 [2020-11-28 07:37:03,476 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 27 [2020-11-28 07:37:03,479 INFO L274 CegarLoopResult]: For program point L301(lines 301 423) no Hoare annotation was computed. [2020-11-28 07:37:03,480 INFO L274 CegarLoopResult]: For program point L235(lines 235 423) no Hoare annotation was computed. [2020-11-28 07:37:03,480 INFO L274 CegarLoopResult]: For program point L169(lines 169 423) no Hoare annotation was computed. [2020-11-28 07:37:03,480 INFO L274 CegarLoopResult]: For program point L303(lines 303 423) no Hoare annotation was computed. [2020-11-28 07:37:03,480 INFO L274 CegarLoopResult]: For program point L105(lines 105 423) no Hoare annotation was computed. [2020-11-28 07:37:03,480 INFO L274 CegarLoopResult]: For program point L40(lines 40 423) no Hoare annotation was computed. [2020-11-28 07:37:03,480 INFO L274 CegarLoopResult]: For program point L371(lines 371 423) no Hoare annotation was computed. [2020-11-28 07:37:03,480 INFO L274 CegarLoopResult]: For program point L307(lines 307 423) no Hoare annotation was computed. [2020-11-28 07:37:03,480 INFO L274 CegarLoopResult]: For program point L175(lines 175 423) no Hoare annotation was computed. [2020-11-28 07:37:03,480 INFO L274 CegarLoopResult]: For program point L109(lines 109 423) no Hoare annotation was computed. [2020-11-28 07:37:03,481 INFO L274 CegarLoopResult]: For program point L242(lines 242 423) no Hoare annotation was computed. [2020-11-28 07:37:03,481 INFO L274 CegarLoopResult]: For program point L45(lines 45 423) no Hoare annotation was computed. [2020-11-28 07:37:03,481 INFO L274 CegarLoopResult]: For program point L244(lines 244 423) no Hoare annotation was computed. [2020-11-28 07:37:03,481 INFO L274 CegarLoopResult]: For program point L179(lines 179 423) no Hoare annotation was computed. [2020-11-28 07:37:03,481 INFO L274 CegarLoopResult]: For program point L378(lines 378 423) no Hoare annotation was computed. [2020-11-28 07:37:03,481 INFO L274 CegarLoopResult]: For program point L48(lines 48 423) no Hoare annotation was computed. [2020-11-28 07:37:03,481 INFO L274 CegarLoopResult]: For program point L247(lines 247 423) no Hoare annotation was computed. [2020-11-28 07:37:03,481 INFO L274 CegarLoopResult]: For program point L116(lines 116 423) no Hoare annotation was computed. [2020-11-28 07:37:03,481 INFO L274 CegarLoopResult]: For program point L52(lines 52 423) no Hoare annotation was computed. [2020-11-28 07:37:03,481 INFO L274 CegarLoopResult]: For program point L185(lines 185 423) no Hoare annotation was computed. [2020-11-28 07:37:03,481 INFO L274 CegarLoopResult]: For program point L385(lines 385 423) no Hoare annotation was computed. [2020-11-28 07:37:03,482 INFO L274 CegarLoopResult]: For program point L319(lines 319 423) no Hoare annotation was computed. [2020-11-28 07:37:03,482 INFO L274 CegarLoopResult]: For program point L189(lines 189 423) no Hoare annotation was computed. [2020-11-28 07:37:03,482 INFO L274 CegarLoopResult]: For program point L123(lines 123 423) no Hoare annotation was computed. [2020-11-28 07:37:03,482 INFO L274 CegarLoopResult]: For program point L57(lines 57 423) no Hoare annotation was computed. [2020-11-28 07:37:03,482 INFO L274 CegarLoopResult]: For program point L388(lines 388 423) no Hoare annotation was computed. [2020-11-28 07:37:03,482 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 07:37:03,482 INFO L274 CegarLoopResult]: For program point L390(lines 390 423) no Hoare annotation was computed. [2020-11-28 07:37:03,482 INFO L274 CegarLoopResult]: For program point L324(lines 324 423) no Hoare annotation was computed. [2020-11-28 07:37:03,482 INFO L274 CegarLoopResult]: For program point L258(lines 258 423) no Hoare annotation was computed. [2020-11-28 07:37:03,482 INFO L274 CegarLoopResult]: For program point L60(lines 60 423) no Hoare annotation was computed. [2020-11-28 07:37:03,482 INFO L274 CegarLoopResult]: For program point L195(lines 195 423) no Hoare annotation was computed. [2020-11-28 07:37:03,483 INFO L274 CegarLoopResult]: For program point L129(lines 129 423) no Hoare annotation was computed. [2020-11-28 07:37:03,483 INFO L274 CegarLoopResult]: For program point L64(lines 64 423) no Hoare annotation was computed. [2020-11-28 07:37:03,483 INFO L274 CegarLoopResult]: For program point L263(lines 263 423) no Hoare annotation was computed. [2020-11-28 07:37:03,483 INFO L274 CegarLoopResult]: For program point L197(lines 197 423) no Hoare annotation was computed. [2020-11-28 07:37:03,483 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-28 07:37:03,483 INFO L274 CegarLoopResult]: For program point L595-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 07:37:03,483 INFO L274 CegarLoopResult]: For program point L199(lines 199 423) no Hoare annotation was computed. [2020-11-28 07:37:03,483 INFO L274 CegarLoopResult]: For program point L133(lines 133 423) no Hoare annotation was computed. [2020-11-28 07:37:03,483 INFO L274 CegarLoopResult]: For program point L399(lines 399 423) no Hoare annotation was computed. [2020-11-28 07:37:03,484 INFO L274 CegarLoopResult]: For program point L201(lines 201 423) no Hoare annotation was computed. [2020-11-28 07:37:03,484 INFO L274 CegarLoopResult]: For program point L69(lines 69 423) no Hoare annotation was computed. [2020-11-28 07:37:03,484 INFO L274 CegarLoopResult]: For program point L598-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 07:37:03,484 INFO L274 CegarLoopResult]: For program point L599(line 599) no Hoare annotation was computed. [2020-11-28 07:37:03,484 INFO L274 CegarLoopResult]: For program point L269(lines 269 423) no Hoare annotation was computed. [2020-11-28 07:37:03,484 INFO L274 CegarLoopResult]: For program point L204(lines 204 423) no Hoare annotation was computed. [2020-11-28 07:37:03,484 INFO L274 CegarLoopResult]: For program point L271(lines 271 423) no Hoare annotation was computed. [2020-11-28 07:37:03,484 INFO L274 CegarLoopResult]: For program point L404(lines 404 423) no Hoare annotation was computed. [2020-11-28 07:37:03,484 INFO L274 CegarLoopResult]: For program point L338(lines 338 423) no Hoare annotation was computed. [2020-11-28 07:37:03,484 INFO L274 CegarLoopResult]: For program point L140(lines 140 423) no Hoare annotation was computed. [2020-11-28 07:37:03,484 INFO L274 CegarLoopResult]: For program point L75(lines 75 423) no Hoare annotation was computed. [2020-11-28 07:37:03,485 INFO L274 CegarLoopResult]: For program point L208(lines 208 423) no Hoare annotation was computed. [2020-11-28 07:37:03,485 INFO L274 CegarLoopResult]: For program point L341(lines 341 423) no Hoare annotation was computed. [2020-11-28 07:37:03,485 INFO L274 CegarLoopResult]: For program point L408(lines 408 423) no Hoare annotation was computed. [2020-11-28 07:37:03,485 INFO L274 CegarLoopResult]: For program point L144(lines 144 423) no Hoare annotation was computed. [2020-11-28 07:37:03,485 INFO L270 CegarLoopResult]: At program point L607(lines 39 608) the Hoare annotation is: (let ((.cse3 (<= ~a28~0 10)) (.cse0 (= ~a19~0 1)) (.cse1 (= ~a21~0 1)) (.cse2 (= ~a17~0 8)) (.cse4 (= ~a25~0 1))) (or (and .cse0 (<= 10 ~a28~0) .cse1 .cse2 .cse3) (and .cse4 .cse3) (<= ~a25~0 0) (and (<= ~a11~0 0) .cse4) (and .cse0 .cse1 .cse2 .cse4 (not (= ~a11~0 1)) (= ~a28~0 11)))) [2020-11-28 07:37:03,485 INFO L274 CegarLoopResult]: For program point L79(lines 79 423) no Hoare annotation was computed. [2020-11-28 07:37:03,486 INFO L274 CegarLoopResult]: For program point L212(lines 212 423) no Hoare annotation was computed. [2020-11-28 07:37:03,486 INFO L277 CegarLoopResult]: At program point L610(lines 610 627) the Hoare annotation is: true [2020-11-28 07:37:03,486 INFO L274 CegarLoopResult]: For program point L412(lines 412 423) no Hoare annotation was computed. [2020-11-28 07:37:03,486 INFO L274 CegarLoopResult]: For program point L347(lines 347 423) no Hoare annotation was computed. [2020-11-28 07:37:03,486 INFO L274 CegarLoopResult]: For program point L149(lines 149 423) no Hoare annotation was computed. [2020-11-28 07:37:03,486 INFO L274 CegarLoopResult]: For program point L414(lines 414 423) no Hoare annotation was computed. [2020-11-28 07:37:03,486 INFO L274 CegarLoopResult]: For program point L84(lines 84 423) no Hoare annotation was computed. [2020-11-28 07:37:03,486 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 07:37:03,486 INFO L274 CegarLoopResult]: For program point L417(lines 417 423) no Hoare annotation was computed. [2020-11-28 07:37:03,486 INFO L274 CegarLoopResult]: For program point L153(lines 153 423) no Hoare annotation was computed. [2020-11-28 07:37:03,487 INFO L270 CegarLoopResult]: At program point L616-2(lines 616 626) the Hoare annotation is: (let ((.cse3 (<= ~a28~0 10)) (.cse0 (= ~a19~0 1)) (.cse1 (= ~a21~0 1)) (.cse2 (= ~a17~0 8)) (.cse4 (= ~a25~0 1))) (or (and .cse0 (<= 10 ~a28~0) .cse1 .cse2 .cse3) (and .cse4 .cse3) (<= ~a25~0 0) (and (<= ~a11~0 0) .cse4) (and .cse0 .cse1 .cse2 .cse4 (not (= ~a11~0 1)) (= ~a28~0 11)))) [2020-11-28 07:37:03,487 INFO L274 CegarLoopResult]: For program point L286(lines 286 423) no Hoare annotation was computed. [2020-11-28 07:37:03,487 INFO L274 CegarLoopResult]: For program point L419(lines 419 423) no Hoare annotation was computed. [2020-11-28 07:37:03,487 INFO L274 CegarLoopResult]: For program point L222(lines 222 423) no Hoare annotation was computed. [2020-11-28 07:37:03,487 INFO L274 CegarLoopResult]: For program point L290(lines 290 423) no Hoare annotation was computed. [2020-11-28 07:37:03,487 INFO L274 CegarLoopResult]: For program point L158(lines 158 423) no Hoare annotation was computed. [2020-11-28 07:37:03,487 INFO L274 CegarLoopResult]: For program point L92(lines 92 423) no Hoare annotation was computed. [2020-11-28 07:37:03,487 INFO L274 CegarLoopResult]: For program point L621(line 621) no Hoare annotation was computed. [2020-11-28 07:37:03,487 INFO L274 CegarLoopResult]: For program point L225(lines 225 423) no Hoare annotation was computed. [2020-11-28 07:37:03,488 INFO L274 CegarLoopResult]: For program point L359(lines 359 423) no Hoare annotation was computed. [2020-11-28 07:37:03,488 INFO L274 CegarLoopResult]: For program point L293(lines 293 423) no Hoare annotation was computed. [2020-11-28 07:37:03,488 INFO L274 CegarLoopResult]: For program point L228(lines 228 423) no Hoare annotation was computed. [2020-11-28 07:37:03,488 INFO L274 CegarLoopResult]: For program point L296(lines 296 423) no Hoare annotation was computed. [2020-11-28 07:37:03,488 INFO L274 CegarLoopResult]: For program point L164(lines 164 423) no Hoare annotation was computed. [2020-11-28 07:37:03,488 INFO L274 CegarLoopResult]: For program point L364(lines 364 423) no Hoare annotation was computed. [2020-11-28 07:37:03,488 INFO L274 CegarLoopResult]: For program point L233(lines 233 423) no Hoare annotation was computed. [2020-11-28 07:37:03,488 INFO L274 CegarLoopResult]: For program point L101(lines 101 423) no Hoare annotation was computed. [2020-11-28 07:37:03,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:37:03 BoogieIcfgContainer [2020-11-28 07:37:03,532 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:37:03,533 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:37:03,533 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:37:03,534 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:37:03,534 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:36:53" (3/4) ... [2020-11-28 07:37:03,537 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 07:37:03,571 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 113 nodes and edges [2020-11-28 07:37:03,573 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2020-11-28 07:37:03,575 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-11-28 07:37:03,578 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-28 07:37:03,773 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2b41beb6-4846-4cda-80f5-89171ce7b69a/bin/utaipan/witness.graphml [2020-11-28 07:37:03,774 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:37:03,775 INFO L168 Benchmark]: Toolchain (without parser) took 15300.81 ms. Allocated memory was 109.1 MB in the beginning and 285.2 MB in the end (delta: 176.2 MB). Free memory was 89.4 MB in the beginning and 117.7 MB in the end (delta: -28.3 MB). Peak memory consumption was 146.3 MB. Max. memory is 16.1 GB. [2020-11-28 07:37:03,776 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 81.8 MB. Free memory is still 57.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:37:03,776 INFO L168 Benchmark]: CACSL2BoogieTranslator took 854.61 ms. Allocated memory is still 109.1 MB. Free memory was 89.0 MB in the beginning and 63.3 MB in the end (delta: 25.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-11-28 07:37:03,777 INFO L168 Benchmark]: Boogie Procedure Inliner took 138.91 ms. Allocated memory is still 109.1 MB. Free memory was 63.3 MB in the beginning and 57.8 MB in the end (delta: 5.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-28 07:37:03,777 INFO L168 Benchmark]: Boogie Preprocessor took 119.77 ms. Allocated memory is still 109.1 MB. Free memory was 57.8 MB in the beginning and 53.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 07:37:03,778 INFO L168 Benchmark]: RCFGBuilder took 3507.34 ms. Allocated memory was 109.1 MB in the beginning and 142.6 MB in the end (delta: 33.6 MB). Free memory was 53.6 MB in the beginning and 106.5 MB in the end (delta: -53.0 MB). Peak memory consumption was 40.7 MB. Max. memory is 16.1 GB. [2020-11-28 07:37:03,778 INFO L168 Benchmark]: TraceAbstraction took 10427.93 ms. Allocated memory was 142.6 MB in the beginning and 285.2 MB in the end (delta: 142.6 MB). Free memory was 106.5 MB in the beginning and 133.4 MB in the end (delta: -26.8 MB). Peak memory consumption was 115.8 MB. Max. memory is 16.1 GB. [2020-11-28 07:37:03,779 INFO L168 Benchmark]: Witness Printer took 240.62 ms. Allocated memory is still 285.2 MB. Free memory was 133.4 MB in the beginning and 117.7 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 07:37:03,782 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 81.8 MB. Free memory is still 57.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 854.61 ms. Allocated memory is still 109.1 MB. Free memory was 89.0 MB in the beginning and 63.3 MB in the end (delta: 25.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 138.91 ms. Allocated memory is still 109.1 MB. Free memory was 63.3 MB in the beginning and 57.8 MB in the end (delta: 5.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 119.77 ms. Allocated memory is still 109.1 MB. Free memory was 57.8 MB in the beginning and 53.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3507.34 ms. Allocated memory was 109.1 MB in the beginning and 142.6 MB in the end (delta: 33.6 MB). Free memory was 53.6 MB in the beginning and 106.5 MB in the end (delta: -53.0 MB). Peak memory consumption was 40.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 10427.93 ms. Allocated memory was 142.6 MB in the beginning and 285.2 MB in the end (delta: 142.6 MB). Free memory was 106.5 MB in the beginning and 133.4 MB in the end (delta: -26.8 MB). Peak memory consumption was 115.8 MB. Max. memory is 16.1 GB. * Witness Printer took 240.62 ms. Allocated memory is still 285.2 MB. Free memory was 133.4 MB in the beginning and 117.7 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 610]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 616]: Loop Invariant Derived loop invariant: (((((((a19 == 1 && 10 <= a28) && a21 == 1) && a17 == 8) && a28 <= 10) || (a25 == 1 && a28 <= 10)) || a25 <= 0) || (a11 <= 0 && a25 == 1)) || (((((a19 == 1 && a21 == 1) && a17 == 8) && a25 == 1) && !(a11 == 1)) && a28 == 11) - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: (((((((a19 == 1 && 10 <= a28) && a21 == 1) && a17 == 8) && a28 <= 10) || (a25 == 1 && a28 <= 10)) || a25 <= 0) || (a11 <= 0 && a25 == 1)) || (((((a19 == 1 && a21 == 1) && a17 == 8) && a25 == 1) && !(a11 == 1)) && a28 == 11) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.9s, OverallIterations: 8, TraceHistogramMax: 6, AutomataDifference: 6.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 525 SDtfs, 613 SDslu, 69 SDs, 0 SdLazy, 2314 SolverSat, 618 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 380 GetRequests, 364 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2163occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 158 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 63 NumberOfFragments, 109 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1548 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 72 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 1399 NumberOfCodeBlocks, 1399 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1567 ConstructedInterpolants, 0 QuantifiedInterpolants, 707159 SizeOfPredicates, 1 NumberOfNonLiveVariables, 406 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 1221/1237 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...