./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem03_label30.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_73b4f300-d69e-4194-a298-81c0813cd976/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_73b4f300-d69e-4194-a298-81c0813cd976/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_73b4f300-d69e-4194-a298-81c0813cd976/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_73b4f300-d69e-4194-a298-81c0813cd976/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem03_label30.c -s /tmp/vcloud-vcloud-master/worker/run_dir_73b4f300-d69e-4194-a298-81c0813cd976/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_73b4f300-d69e-4194-a298-81c0813cd976/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 059a13f8c861f1cdb2211acdf7345f4509ca1114 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 03:11:53,910 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 03:11:53,913 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 03:11:54,014 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 03:11:54,014 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 03:11:54,019 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 03:11:54,022 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 03:11:54,029 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 03:11:54,032 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 03:11:54,038 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 03:11:54,039 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 03:11:54,041 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 03:11:54,042 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 03:11:54,045 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 03:11:54,046 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 03:11:54,048 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 03:11:54,049 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 03:11:54,053 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 03:11:54,056 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 03:11:54,064 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 03:11:54,066 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 03:11:54,067 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 03:11:54,069 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 03:11:54,070 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 03:11:54,079 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 03:11:54,080 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 03:11:54,080 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 03:11:54,082 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 03:11:54,083 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 03:11:54,084 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 03:11:54,084 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 03:11:54,085 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 03:11:54,087 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 03:11:54,089 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 03:11:54,090 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 03:11:54,090 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 03:11:54,091 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 03:11:54,091 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 03:11:54,091 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 03:11:54,093 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 03:11:54,093 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 03:11:54,096 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_73b4f300-d69e-4194-a298-81c0813cd976/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-30 03:11:54,136 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 03:11:54,136 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 03:11:54,137 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 03:11:54,138 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 03:11:54,138 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 03:11:54,138 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 03:11:54,138 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 03:11:54,138 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 03:11:54,138 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 03:11:54,139 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 03:11:54,140 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 03:11:54,140 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 03:11:54,140 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 03:11:54,140 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 03:11:54,140 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 03:11:54,141 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 03:11:54,141 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 03:11:54,142 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 03:11:54,142 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 03:11:54,142 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 03:11:54,142 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 03:11:54,142 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 03:11:54,142 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 03:11:54,143 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 03:11:54,143 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 03:11:54,143 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 03:11:54,143 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 03:11:54,143 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 03:11:54,144 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 03:11:54,145 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 03:11:54,145 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 03:11:54,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 03:11:54,146 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 03:11:54,146 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 03:11:54,146 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 03:11:54,146 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 03:11:54,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 03:11:54,147 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 03:11:54,147 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 03:11:54,147 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 03:11:54,147 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_73b4f300-d69e-4194-a298-81c0813cd976/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_73b4f300-d69e-4194-a298-81c0813cd976/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 059a13f8c861f1cdb2211acdf7345f4509ca1114 [2020-11-30 03:11:54,399 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 03:11:54,424 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 03:11:54,427 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 03:11:54,428 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 03:11:54,433 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 03:11:54,434 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_73b4f300-d69e-4194-a298-81c0813cd976/bin/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem03_label30.c [2020-11-30 03:11:54,515 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_73b4f300-d69e-4194-a298-81c0813cd976/bin/utaipan/data/9e3438c46/a15cb6a6567a4ff5b2b00f65af4bbddf/FLAGe5dd0aa54 [2020-11-30 03:11:55,288 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 03:11:55,289 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_73b4f300-d69e-4194-a298-81c0813cd976/sv-benchmarks/c/eca-rers2012/Problem03_label30.c [2020-11-30 03:11:55,314 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_73b4f300-d69e-4194-a298-81c0813cd976/bin/utaipan/data/9e3438c46/a15cb6a6567a4ff5b2b00f65af4bbddf/FLAGe5dd0aa54 [2020-11-30 03:11:55,444 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_73b4f300-d69e-4194-a298-81c0813cd976/bin/utaipan/data/9e3438c46/a15cb6a6567a4ff5b2b00f65af4bbddf [2020-11-30 03:11:55,446 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 03:11:55,447 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 03:11:55,449 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 03:11:55,450 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 03:11:55,454 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 03:11:55,456 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:11:55" (1/1) ... [2020-11-30 03:11:55,459 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e4aff27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:11:55, skipping insertion in model container [2020-11-30 03:11:55,459 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:11:55" (1/1) ... [2020-11-30 03:11:55,468 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 03:11:55,573 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 03:11:56,414 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:11:56,428 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 03:11:56,833 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:11:56,854 INFO L208 MainTranslator]: Completed translation [2020-11-30 03:11:56,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:11:56 WrapperNode [2020-11-30 03:11:56,856 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 03:11:56,857 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 03:11:56,857 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 03:11:56,858 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 03:11:56,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:11:56" (1/1) ... [2020-11-30 03:11:56,926 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:11:56" (1/1) ... [2020-11-30 03:11:57,055 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 03:11:57,055 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 03:11:57,056 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 03:11:57,056 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 03:11:57,064 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:11:56" (1/1) ... [2020-11-30 03:11:57,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:11:56" (1/1) ... [2020-11-30 03:11:57,074 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:11:56" (1/1) ... [2020-11-30 03:11:57,074 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:11:56" (1/1) ... [2020-11-30 03:11:57,144 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:11:56" (1/1) ... [2020-11-30 03:11:57,169 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:11:56" (1/1) ... [2020-11-30 03:11:57,181 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:11:56" (1/1) ... [2020-11-30 03:11:57,196 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 03:11:57,197 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 03:11:57,197 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 03:11:57,200 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 03:11:57,201 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:11:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_73b4f300-d69e-4194-a298-81c0813cd976/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 [2020-11-30 03:11:57,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 03:11:57,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 03:11:57,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 03:11:57,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 03:12:01,517 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 03:12:01,517 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-30 03:12:01,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:12:01 BoogieIcfgContainer [2020-11-30 03:12:01,520 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 03:12:01,521 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 03:12:01,521 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 03:12:01,525 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 03:12:01,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 03:11:55" (1/3) ... [2020-11-30 03:12:01,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@699543b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:12:01, skipping insertion in model container [2020-11-30 03:12:01,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:11:56" (2/3) ... [2020-11-30 03:12:01,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@699543b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:12:01, skipping insertion in model container [2020-11-30 03:12:01,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:12:01" (3/3) ... [2020-11-30 03:12:01,528 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem03_label30.c [2020-11-30 03:12:01,539 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 03:12:01,544 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 03:12:01,556 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 03:12:01,598 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 03:12:01,598 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 03:12:01,599 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 03:12:01,599 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 03:12:01,599 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 03:12:01,599 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 03:12:01,599 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 03:12:01,599 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 03:12:01,625 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states. [2020-11-30 03:12:01,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-11-30 03:12:01,646 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:12:01,647 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:12:01,647 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:12:01,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:12:01,653 INFO L82 PathProgramCache]: Analyzing trace with hash -1040893344, now seen corresponding path program 1 times [2020-11-30 03:12:01,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:12:01,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621513598] [2020-11-30 03:12:01,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:12:01,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:12:02,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:12:02,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621513598] [2020-11-30 03:12:02,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:12:02,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 03:12:02,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794690458] [2020-11-30 03:12:02,394 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 03:12:02,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:12:02,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 03:12:02,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 03:12:02,412 INFO L87 Difference]: Start difference. First operand 148 states. Second operand 3 states. [2020-11-30 03:12:03,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:12:03,819 INFO L93 Difference]: Finished difference Result 440 states and 860 transitions. [2020-11-30 03:12:03,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 03:12:03,821 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 143 [2020-11-30 03:12:03,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:12:03,841 INFO L225 Difference]: With dead ends: 440 [2020-11-30 03:12:03,847 INFO L226 Difference]: Without dead ends: 289 [2020-11-30 03:12:03,855 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 [2020-11-30 03:12:03,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2020-11-30 03:12:03,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 289. [2020-11-30 03:12:03,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 289 states. [2020-11-30 03:12:03,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 550 transitions. [2020-11-30 03:12:03,960 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 550 transitions. Word has length 143 [2020-11-30 03:12:03,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:12:03,964 INFO L481 AbstractCegarLoop]: Abstraction has 289 states and 550 transitions. [2020-11-30 03:12:03,964 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 03:12:03,964 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 550 transitions. [2020-11-30 03:12:03,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-11-30 03:12:03,979 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:12:03,979 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:12:03,980 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 03:12:03,980 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:12:03,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:12:03,983 INFO L82 PathProgramCache]: Analyzing trace with hash 894628288, now seen corresponding path program 1 times [2020-11-30 03:12:03,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:12:03,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435206657] [2020-11-30 03:12:03,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:12:04,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:12:04,184 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:12:04,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435206657] [2020-11-30 03:12:04,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:12:04,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 03:12:04,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578217478] [2020-11-30 03:12:04,188 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 03:12:04,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:12:04,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 03:12:04,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 03:12:04,191 INFO L87 Difference]: Start difference. First operand 289 states and 550 transitions. Second operand 3 states. [2020-11-30 03:12:05,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:12:05,271 INFO L93 Difference]: Finished difference Result 865 states and 1648 transitions. [2020-11-30 03:12:05,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 03:12:05,272 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-11-30 03:12:05,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:12:05,277 INFO L225 Difference]: With dead ends: 865 [2020-11-30 03:12:05,277 INFO L226 Difference]: Without dead ends: 577 [2020-11-30 03:12:05,279 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 [2020-11-30 03:12:05,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2020-11-30 03:12:05,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 575. [2020-11-30 03:12:05,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 575 states. [2020-11-30 03:12:05,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 1011 transitions. [2020-11-30 03:12:05,314 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 1011 transitions. Word has length 148 [2020-11-30 03:12:05,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:12:05,314 INFO L481 AbstractCegarLoop]: Abstraction has 575 states and 1011 transitions. [2020-11-30 03:12:05,315 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 03:12:05,315 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 1011 transitions. [2020-11-30 03:12:05,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-11-30 03:12:05,317 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:12:05,318 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:12:05,318 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 03:12:05,318 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:12:05,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:12:05,323 INFO L82 PathProgramCache]: Analyzing trace with hash -104739455, now seen corresponding path program 1 times [2020-11-30 03:12:05,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:12:05,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519660637] [2020-11-30 03:12:05,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:12:05,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:12:05,454 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:12:05,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519660637] [2020-11-30 03:12:05,455 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:12:05,455 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 03:12:05,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708358623] [2020-11-30 03:12:05,456 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 03:12:05,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:12:05,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 03:12:05,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 03:12:05,462 INFO L87 Difference]: Start difference. First operand 575 states and 1011 transitions. Second operand 3 states. [2020-11-30 03:12:06,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:12:06,440 INFO L93 Difference]: Finished difference Result 1721 states and 3030 transitions. [2020-11-30 03:12:06,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 03:12:06,441 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 151 [2020-11-30 03:12:06,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:12:06,450 INFO L225 Difference]: With dead ends: 1721 [2020-11-30 03:12:06,450 INFO L226 Difference]: Without dead ends: 1147 [2020-11-30 03:12:06,454 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 [2020-11-30 03:12:06,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1147 states. [2020-11-30 03:12:06,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1147 to 1147. [2020-11-30 03:12:06,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1147 states. [2020-11-30 03:12:06,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1147 states to 1147 states and 1962 transitions. [2020-11-30 03:12:06,505 INFO L78 Accepts]: Start accepts. Automaton has 1147 states and 1962 transitions. Word has length 151 [2020-11-30 03:12:06,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:12:06,510 INFO L481 AbstractCegarLoop]: Abstraction has 1147 states and 1962 transitions. [2020-11-30 03:12:06,511 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 03:12:06,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1147 states and 1962 transitions. [2020-11-30 03:12:06,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-11-30 03:12:06,517 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:12:06,517 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:12:06,524 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 03:12:06,524 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:12:06,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:12:06,524 INFO L82 PathProgramCache]: Analyzing trace with hash -2094508636, now seen corresponding path program 1 times [2020-11-30 03:12:06,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:12:06,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945002309] [2020-11-30 03:12:06,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:12:06,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:12:06,635 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-30 03:12:06,636 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945002309] [2020-11-30 03:12:06,636 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:12:06,636 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 03:12:06,636 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143966111] [2020-11-30 03:12:06,637 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 03:12:06,638 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:12:06,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 03:12:06,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 03:12:06,640 INFO L87 Difference]: Start difference. First operand 1147 states and 1962 transitions. Second operand 3 states. [2020-11-30 03:12:07,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:12:07,942 INFO L93 Difference]: Finished difference Result 3437 states and 5883 transitions. [2020-11-30 03:12:07,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 03:12:07,943 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 163 [2020-11-30 03:12:07,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:12:07,957 INFO L225 Difference]: With dead ends: 3437 [2020-11-30 03:12:07,957 INFO L226 Difference]: Without dead ends: 2291 [2020-11-30 03:12:07,959 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 [2020-11-30 03:12:07,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2291 states. [2020-11-30 03:12:08,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2291 to 2291. [2020-11-30 03:12:08,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2291 states. [2020-11-30 03:12:08,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2291 states to 2291 states and 3562 transitions. [2020-11-30 03:12:08,020 INFO L78 Accepts]: Start accepts. Automaton has 2291 states and 3562 transitions. Word has length 163 [2020-11-30 03:12:08,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:12:08,021 INFO L481 AbstractCegarLoop]: Abstraction has 2291 states and 3562 transitions. [2020-11-30 03:12:08,021 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 03:12:08,021 INFO L276 IsEmpty]: Start isEmpty. Operand 2291 states and 3562 transitions. [2020-11-30 03:12:08,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-11-30 03:12:08,027 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:12:08,028 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:12:08,028 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 03:12:08,028 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:12:08,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:12:08,029 INFO L82 PathProgramCache]: Analyzing trace with hash -2130307388, now seen corresponding path program 1 times [2020-11-30 03:12:08,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:12:08,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661932508] [2020-11-30 03:12:08,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:12:08,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:12:08,160 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-11-30 03:12:08,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661932508] [2020-11-30 03:12:08,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:12:08,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 03:12:08,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976970500] [2020-11-30 03:12:08,164 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 03:12:08,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:12:08,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 03:12:08,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 03:12:08,165 INFO L87 Difference]: Start difference. First operand 2291 states and 3562 transitions. Second operand 3 states. [2020-11-30 03:12:09,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:12:09,306 INFO L93 Difference]: Finished difference Result 5725 states and 8865 transitions. [2020-11-30 03:12:09,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 03:12:09,307 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 184 [2020-11-30 03:12:09,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:12:09,327 INFO L225 Difference]: With dead ends: 5725 [2020-11-30 03:12:09,327 INFO L226 Difference]: Without dead ends: 3435 [2020-11-30 03:12:09,331 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 [2020-11-30 03:12:09,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3435 states. [2020-11-30 03:12:09,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3435 to 3435. [2020-11-30 03:12:09,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3435 states. [2020-11-30 03:12:09,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3435 states to 3435 states and 5290 transitions. [2020-11-30 03:12:09,434 INFO L78 Accepts]: Start accepts. Automaton has 3435 states and 5290 transitions. Word has length 184 [2020-11-30 03:12:09,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:12:09,436 INFO L481 AbstractCegarLoop]: Abstraction has 3435 states and 5290 transitions. [2020-11-30 03:12:09,436 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 03:12:09,436 INFO L276 IsEmpty]: Start isEmpty. Operand 3435 states and 5290 transitions. [2020-11-30 03:12:09,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-11-30 03:12:09,445 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:12:09,446 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:12:09,446 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 03:12:09,446 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:12:09,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:12:09,448 INFO L82 PathProgramCache]: Analyzing trace with hash 225863593, now seen corresponding path program 1 times [2020-11-30 03:12:09,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:12:09,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747348073] [2020-11-30 03:12:09,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:12:09,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:12:09,625 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-11-30 03:12:09,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747348073] [2020-11-30 03:12:09,627 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:12:09,627 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 03:12:09,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335560590] [2020-11-30 03:12:09,628 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 03:12:09,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:12:09,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 03:12:09,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 03:12:09,630 INFO L87 Difference]: Start difference. First operand 3435 states and 5290 transitions. Second operand 4 states. [2020-11-30 03:12:11,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:12:11,021 INFO L93 Difference]: Finished difference Result 10732 states and 16809 transitions. [2020-11-30 03:12:11,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 03:12:11,022 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 191 [2020-11-30 03:12:11,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:12:11,066 INFO L225 Difference]: With dead ends: 10732 [2020-11-30 03:12:11,066 INFO L226 Difference]: Without dead ends: 7298 [2020-11-30 03:12:11,071 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 [2020-11-30 03:12:11,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7298 states. [2020-11-30 03:12:11,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7298 to 7296. [2020-11-30 03:12:11,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7296 states. [2020-11-30 03:12:11,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7296 states to 7296 states and 11138 transitions. [2020-11-30 03:12:11,270 INFO L78 Accepts]: Start accepts. Automaton has 7296 states and 11138 transitions. Word has length 191 [2020-11-30 03:12:11,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:12:11,270 INFO L481 AbstractCegarLoop]: Abstraction has 7296 states and 11138 transitions. [2020-11-30 03:12:11,276 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 03:12:11,277 INFO L276 IsEmpty]: Start isEmpty. Operand 7296 states and 11138 transitions. [2020-11-30 03:12:11,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-11-30 03:12:11,294 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:12:11,294 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:12:11,295 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-30 03:12:11,295 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:12:11,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:12:11,295 INFO L82 PathProgramCache]: Analyzing trace with hash 537449951, now seen corresponding path program 1 times [2020-11-30 03:12:11,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:12:11,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563479692] [2020-11-30 03:12:11,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:12:11,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:12:11,413 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2020-11-30 03:12:11,414 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563479692] [2020-11-30 03:12:11,414 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:12:11,414 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 03:12:11,414 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002745041] [2020-11-30 03:12:11,415 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 03:12:11,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:12:11,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 03:12:11,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 03:12:11,417 INFO L87 Difference]: Start difference. First operand 7296 states and 11138 transitions. Second operand 3 states. [2020-11-30 03:12:12,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:12:12,619 INFO L93 Difference]: Finished difference Result 17594 states and 26980 transitions. [2020-11-30 03:12:12,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 03:12:12,632 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 199 [2020-11-30 03:12:12,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:12:12,716 INFO L225 Difference]: With dead ends: 17594 [2020-11-30 03:12:12,717 INFO L226 Difference]: Without dead ends: 10299 [2020-11-30 03:12:12,727 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 [2020-11-30 03:12:12,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10299 states. [2020-11-30 03:12:12,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10299 to 10299. [2020-11-30 03:12:12,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10299 states. [2020-11-30 03:12:12,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10299 states to 10299 states and 14536 transitions. [2020-11-30 03:12:12,973 INFO L78 Accepts]: Start accepts. Automaton has 10299 states and 14536 transitions. Word has length 199 [2020-11-30 03:12:12,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:12:12,973 INFO L481 AbstractCegarLoop]: Abstraction has 10299 states and 14536 transitions. [2020-11-30 03:12:12,973 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 03:12:12,973 INFO L276 IsEmpty]: Start isEmpty. Operand 10299 states and 14536 transitions. [2020-11-30 03:12:12,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-11-30 03:12:12,994 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:12:12,995 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:12:12,995 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-30 03:12:12,995 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:12:12,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:12:12,996 INFO L82 PathProgramCache]: Analyzing trace with hash 985605971, now seen corresponding path program 1 times [2020-11-30 03:12:12,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:12:12,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246438208] [2020-11-30 03:12:12,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:12:13,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:12:13,185 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-11-30 03:12:13,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246438208] [2020-11-30 03:12:13,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:12:13,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 03:12:13,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138229756] [2020-11-30 03:12:13,187 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 03:12:13,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:12:13,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 03:12:13,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 03:12:13,188 INFO L87 Difference]: Start difference. First operand 10299 states and 14536 transitions. Second operand 3 states. [2020-11-30 03:12:14,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:12:14,347 INFO L93 Difference]: Finished difference Result 25602 states and 35803 transitions. [2020-11-30 03:12:14,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 03:12:14,348 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 201 [2020-11-30 03:12:14,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:12:14,383 INFO L225 Difference]: With dead ends: 25602 [2020-11-30 03:12:14,383 INFO L226 Difference]: Without dead ends: 15304 [2020-11-30 03:12:14,396 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 [2020-11-30 03:12:14,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15304 states. [2020-11-30 03:12:14,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15304 to 15304. [2020-11-30 03:12:14,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15304 states. [2020-11-30 03:12:14,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15304 states to 15304 states and 20606 transitions. [2020-11-30 03:12:14,706 INFO L78 Accepts]: Start accepts. Automaton has 15304 states and 20606 transitions. Word has length 201 [2020-11-30 03:12:14,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:12:14,706 INFO L481 AbstractCegarLoop]: Abstraction has 15304 states and 20606 transitions. [2020-11-30 03:12:14,706 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 03:12:14,706 INFO L276 IsEmpty]: Start isEmpty. Operand 15304 states and 20606 transitions. [2020-11-30 03:12:14,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-11-30 03:12:14,728 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:12:14,728 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:12:14,728 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-30 03:12:14,729 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:12:14,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:12:14,729 INFO L82 PathProgramCache]: Analyzing trace with hash 473742326, now seen corresponding path program 1 times [2020-11-30 03:12:14,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:12:14,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011293413] [2020-11-30 03:12:14,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:12:14,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:12:14,854 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:12:14,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011293413] [2020-11-30 03:12:14,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:12:14,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 03:12:14,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041803605] [2020-11-30 03:12:14,857 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 03:12:14,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:12:14,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 03:12:14,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 03:12:14,863 INFO L87 Difference]: Start difference. First operand 15304 states and 20606 transitions. Second operand 3 states. [2020-11-30 03:12:16,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:12:16,127 INFO L93 Difference]: Finished difference Result 35469 states and 48046 transitions. [2020-11-30 03:12:16,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 03:12:16,128 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 201 [2020-11-30 03:12:16,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:12:16,170 INFO L225 Difference]: With dead ends: 35469 [2020-11-30 03:12:16,170 INFO L226 Difference]: Without dead ends: 20166 [2020-11-30 03:12:16,186 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 [2020-11-30 03:12:16,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20166 states. [2020-11-30 03:12:16,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20166 to 20166. [2020-11-30 03:12:16,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20166 states. [2020-11-30 03:12:16,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20166 states to 20166 states and 26091 transitions. [2020-11-30 03:12:16,498 INFO L78 Accepts]: Start accepts. Automaton has 20166 states and 26091 transitions. Word has length 201 [2020-11-30 03:12:16,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:12:16,499 INFO L481 AbstractCegarLoop]: Abstraction has 20166 states and 26091 transitions. [2020-11-30 03:12:16,499 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 03:12:16,499 INFO L276 IsEmpty]: Start isEmpty. Operand 20166 states and 26091 transitions. [2020-11-30 03:12:16,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-11-30 03:12:16,530 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:12:16,531 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:12:16,531 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-30 03:12:16,531 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:12:16,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:12:16,532 INFO L82 PathProgramCache]: Analyzing trace with hash 1401865319, now seen corresponding path program 1 times [2020-11-30 03:12:16,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:12:16,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962474550] [2020-11-30 03:12:16,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:12:16,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:12:16,808 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 73 proven. 6 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-11-30 03:12:16,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962474550] [2020-11-30 03:12:16,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1209301593] [2020-11-30 03:12:16,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_73b4f300-d69e-4194-a298-81c0813cd976/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 [2020-11-30 03:12:17,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:12:17,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 03:12:17,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:12:17,134 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-30 03:12:17,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:12:17,211 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-30 03:12:17,212 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2020-11-30 03:12:17,212 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [3] total 5 [2020-11-30 03:12:17,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415907568] [2020-11-30 03:12:17,213 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 03:12:17,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:12:17,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 03:12:17,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 03:12:17,214 INFO L87 Difference]: Start difference. First operand 20166 states and 26091 transitions. Second operand 3 states. [2020-11-30 03:12:18,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:12:18,767 INFO L93 Difference]: Finished difference Result 47195 states and 61329 transitions. [2020-11-30 03:12:18,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 03:12:18,767 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 211 [2020-11-30 03:12:18,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:12:18,824 INFO L225 Difference]: With dead ends: 47195 [2020-11-30 03:12:18,824 INFO L226 Difference]: Without dead ends: 27030 [2020-11-30 03:12:18,851 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 420 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 03:12:18,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27030 states. [2020-11-30 03:12:19,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27030 to 27030. [2020-11-30 03:12:19,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27030 states. [2020-11-30 03:12:19,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27030 states to 27030 states and 34436 transitions. [2020-11-30 03:12:19,315 INFO L78 Accepts]: Start accepts. Automaton has 27030 states and 34436 transitions. Word has length 211 [2020-11-30 03:12:19,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:12:19,316 INFO L481 AbstractCegarLoop]: Abstraction has 27030 states and 34436 transitions. [2020-11-30 03:12:19,316 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 03:12:19,316 INFO L276 IsEmpty]: Start isEmpty. Operand 27030 states and 34436 transitions. [2020-11-30 03:12:19,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-11-30 03:12:19,347 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:12:19,348 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:12:19,548 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-11-30 03:12:19,549 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:12:19,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:12:19,550 INFO L82 PathProgramCache]: Analyzing trace with hash -1953890816, now seen corresponding path program 1 times [2020-11-30 03:12:19,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:12:19,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864027868] [2020-11-30 03:12:19,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:12:19,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:12:19,792 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-11-30 03:12:19,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864027868] [2020-11-30 03:12:19,792 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:12:19,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 03:12:19,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210171855] [2020-11-30 03:12:19,795 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 03:12:19,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:12:19,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 03:12:19,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 03:12:19,796 INFO L87 Difference]: Start difference. First operand 27030 states and 34436 transitions. Second operand 3 states. [2020-11-30 03:12:21,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:12:21,023 INFO L93 Difference]: Finished difference Result 70504 states and 89739 transitions. [2020-11-30 03:12:21,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 03:12:21,024 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 224 [2020-11-30 03:12:21,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:12:21,104 INFO L225 Difference]: With dead ends: 70504 [2020-11-30 03:12:21,104 INFO L226 Difference]: Without dead ends: 43475 [2020-11-30 03:12:21,126 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 [2020-11-30 03:12:21,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43475 states. [2020-11-30 03:12:21,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43475 to 40329. [2020-11-30 03:12:21,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40329 states. [2020-11-30 03:12:22,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40329 states to 40329 states and 50478 transitions. [2020-11-30 03:12:22,038 INFO L78 Accepts]: Start accepts. Automaton has 40329 states and 50478 transitions. Word has length 224 [2020-11-30 03:12:22,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:12:22,039 INFO L481 AbstractCegarLoop]: Abstraction has 40329 states and 50478 transitions. [2020-11-30 03:12:22,039 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 03:12:22,039 INFO L276 IsEmpty]: Start isEmpty. Operand 40329 states and 50478 transitions. [2020-11-30 03:12:22,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2020-11-30 03:12:22,077 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:12:22,077 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-30 03:12:22,077 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-30 03:12:22,078 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:12:22,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:12:22,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1404426562, now seen corresponding path program 1 times [2020-11-30 03:12:22,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:12:22,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936394201] [2020-11-30 03:12:22,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:12:22,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:12:22,478 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:12:22,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936394201] [2020-11-30 03:12:22,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:12:22,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 03:12:22,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902994372] [2020-11-30 03:12:22,480 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 03:12:22,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:12:22,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 03:12:22,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 03:12:22,481 INFO L87 Difference]: Start difference. First operand 40329 states and 50478 transitions. Second operand 3 states. [2020-11-30 03:12:23,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:12:23,923 INFO L93 Difference]: Finished difference Result 92097 states and 115057 transitions. [2020-11-30 03:12:23,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 03:12:23,924 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 267 [2020-11-30 03:12:23,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:12:24,016 INFO L225 Difference]: With dead ends: 92097 [2020-11-30 03:12:24,016 INFO L226 Difference]: Without dead ends: 51769 [2020-11-30 03:12:24,048 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 [2020-11-30 03:12:24,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51769 states. [2020-11-30 03:12:24,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51769 to 45906. [2020-11-30 03:12:24,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45906 states. [2020-11-30 03:12:24,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45906 states to 45906 states and 56323 transitions. [2020-11-30 03:12:24,992 INFO L78 Accepts]: Start accepts. Automaton has 45906 states and 56323 transitions. Word has length 267 [2020-11-30 03:12:24,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:12:24,993 INFO L481 AbstractCegarLoop]: Abstraction has 45906 states and 56323 transitions. [2020-11-30 03:12:24,993 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 03:12:24,993 INFO L276 IsEmpty]: Start isEmpty. Operand 45906 states and 56323 transitions. [2020-11-30 03:12:25,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2020-11-30 03:12:25,033 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:12:25,033 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:12:25,033 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-30 03:12:25,034 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:12:25,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:12:25,034 INFO L82 PathProgramCache]: Analyzing trace with hash -969739203, now seen corresponding path program 1 times [2020-11-30 03:12:25,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:12:25,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489608600] [2020-11-30 03:12:25,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:12:25,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:12:25,658 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 130 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:12:25,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489608600] [2020-11-30 03:12:25,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64825945] [2020-11-30 03:12:25,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_73b4f300-d69e-4194-a298-81c0813cd976/bin/utaipan/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 [2020-11-30 03:12:25,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:12:25,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 03:12:25,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:12:26,308 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-30 03:12:26,308 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:12:26,503 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-30 03:12:26,503 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2020-11-30 03:12:26,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4] total 7 [2020-11-30 03:12:26,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541862789] [2020-11-30 03:12:26,505 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 03:12:26,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:12:26,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 03:12:26,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-30 03:12:26,506 INFO L87 Difference]: Start difference. First operand 45906 states and 56323 transitions. Second operand 4 states. [2020-11-30 03:12:28,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:12:28,781 INFO L93 Difference]: Finished difference Result 113404 states and 138843 transitions. [2020-11-30 03:12:28,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 03:12:28,781 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 274 [2020-11-30 03:12:28,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:12:28,916 INFO L225 Difference]: With dead ends: 113404 [2020-11-30 03:12:28,917 INFO L226 Difference]: Without dead ends: 67499 [2020-11-30 03:12:28,947 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 550 GetRequests, 545 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-30 03:12:29,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67499 states. [2020-11-30 03:12:30,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67499 to 63066. [2020-11-30 03:12:30,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63066 states. [2020-11-30 03:12:30,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63066 states to 63066 states and 75892 transitions. [2020-11-30 03:12:30,738 INFO L78 Accepts]: Start accepts. Automaton has 63066 states and 75892 transitions. Word has length 274 [2020-11-30 03:12:30,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:12:30,739 INFO L481 AbstractCegarLoop]: Abstraction has 63066 states and 75892 transitions. [2020-11-30 03:12:30,739 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 03:12:30,739 INFO L276 IsEmpty]: Start isEmpty. Operand 63066 states and 75892 transitions. [2020-11-30 03:12:31,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2020-11-30 03:12:31,042 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:12:31,043 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:12:31,243 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-11-30 03:12:31,243 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:12:31,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:12:31,244 INFO L82 PathProgramCache]: Analyzing trace with hash -1204780857, now seen corresponding path program 1 times [2020-11-30 03:12:31,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:12:31,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594486919] [2020-11-30 03:12:31,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:12:31,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:12:31,457 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 129 proven. 6 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2020-11-30 03:12:31,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594486919] [2020-11-30 03:12:31,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [48668525] [2020-11-30 03:12:31,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_73b4f300-d69e-4194-a298-81c0813cd976/bin/utaipan/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 [2020-11-30 03:12:31,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:12:31,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 03:12:31,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:12:32,194 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 171 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2020-11-30 03:12:32,195 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:12:32,432 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 171 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2020-11-30 03:12:32,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2020-11-30 03:12:32,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [3] total 6 [2020-11-30 03:12:32,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960254407] [2020-11-30 03:12:32,434 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 03:12:32,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:12:32,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 03:12:32,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-30 03:12:32,435 INFO L87 Difference]: Start difference. First operand 63066 states and 75892 transitions. Second operand 4 states. [2020-11-30 03:12:34,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:12:34,297 INFO L93 Difference]: Finished difference Result 138713 states and 166827 transitions. [2020-11-30 03:12:34,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 03:12:34,297 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 315 [2020-11-30 03:12:34,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:12:34,298 INFO L225 Difference]: With dead ends: 138713 [2020-11-30 03:12:34,298 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 03:12:34,339 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 631 GetRequests, 627 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-30 03:12:34,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 03:12:34,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 03:12:34,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 03:12:34,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 03:12:34,340 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 315 [2020-11-30 03:12:34,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:12:34,340 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 03:12:34,340 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 03:12:34,340 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 03:12:34,340 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 03:12:34,555 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-11-30 03:12:34,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 03:12:35,751 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 624 DAG size of output: 51 [2020-11-30 03:12:36,632 WARN L193 SmtUtils]: Spent 877.00 ms on a formula simplification. DAG size of input: 624 DAG size of output: 51 [2020-11-30 03:12:36,920 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 34 [2020-11-30 03:12:37,159 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 34 [2020-11-30 03:12:37,161 INFO L274 CegarLoopResult]: For program point L498(lines 498 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,161 INFO L274 CegarLoopResult]: For program point L432(lines 432 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,161 INFO L274 CegarLoopResult]: For program point L366(lines 366 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,161 INFO L274 CegarLoopResult]: For program point L763(lines 763 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,162 INFO L274 CegarLoopResult]: For program point L632(lines 632 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,162 INFO L274 CegarLoopResult]: For program point L566(lines 566 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,162 INFO L274 CegarLoopResult]: For program point L302(lines 302 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,162 INFO L274 CegarLoopResult]: For program point L1293(lines 1293 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,162 INFO L274 CegarLoopResult]: For program point L1360(lines 1360 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,162 INFO L274 CegarLoopResult]: For program point L1162(lines 1162 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,162 INFO L274 CegarLoopResult]: For program point L105(lines 105 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,162 INFO L274 CegarLoopResult]: For program point L1096(lines 1096 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,162 INFO L274 CegarLoopResult]: For program point L1031(lines 1031 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,162 INFO L274 CegarLoopResult]: For program point L965(lines 965 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,162 INFO L274 CegarLoopResult]: For program point L899(lines 899 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,162 INFO L274 CegarLoopResult]: For program point L174(lines 174 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,162 INFO L274 CegarLoopResult]: For program point L835(lines 835 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,162 INFO L274 CegarLoopResult]: For program point L771(lines 771 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,162 INFO L274 CegarLoopResult]: For program point L507(lines 507 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,162 INFO L274 CegarLoopResult]: For program point L243(lines 243 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,162 INFO L274 CegarLoopResult]: For program point L1433(lines 1433 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,162 INFO L274 CegarLoopResult]: For program point L376(lines 376 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,163 INFO L274 CegarLoopResult]: For program point L1566-1(lines 64 1660) no Hoare annotation was computed. [2020-11-30 03:12:37,163 INFO L274 CegarLoopResult]: For program point L311(lines 311 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,163 INFO L274 CegarLoopResult]: For program point L1236(lines 1236 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,163 INFO L274 CegarLoopResult]: For program point L576(lines 576 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,163 INFO L274 CegarLoopResult]: For program point L444(lines 444 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,163 INFO L274 CegarLoopResult]: For program point L1369(lines 1369 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,163 INFO L274 CegarLoopResult]: For program point L1105(lines 1105 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,163 INFO L274 CegarLoopResult]: For program point L643(lines 643 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,163 INFO L274 CegarLoopResult]: For program point L1172(lines 1172 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,163 INFO L274 CegarLoopResult]: For program point L115(lines 115 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,163 INFO L274 CegarLoopResult]: For program point L1569-1(lines 64 1660) no Hoare annotation was computed. [2020-11-30 03:12:37,163 INFO L274 CegarLoopResult]: For program point L248(lines 248 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,163 INFO L274 CegarLoopResult]: For program point L182(lines 182 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,163 INFO L274 CegarLoopResult]: For program point L1041(lines 1041 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,163 INFO L274 CegarLoopResult]: For program point L909(lines 909 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,163 INFO L274 CegarLoopResult]: For program point L711(lines 711 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,164 INFO L274 CegarLoopResult]: For program point L1570(line 1570) no Hoare annotation was computed. [2020-11-30 03:12:37,164 INFO L274 CegarLoopResult]: For program point L976(lines 976 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,164 INFO L274 CegarLoopResult]: For program point L779(lines 779 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,164 INFO L274 CegarLoopResult]: For program point L846(lines 846 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,164 INFO L274 CegarLoopResult]: For program point L451(lines 451 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,164 INFO L274 CegarLoopResult]: For program point L1442(lines 1442 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,164 INFO L274 CegarLoopResult]: For program point L584(lines 584 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,164 INFO L274 CegarLoopResult]: For program point L387(lines 387 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,164 INFO L274 CegarLoopResult]: For program point L1114(lines 1114 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,164 INFO L274 CegarLoopResult]: For program point L1048(lines 1048 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,164 INFO L274 CegarLoopResult]: For program point L322(lines 322 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,164 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 03:12:37,164 INFO L274 CegarLoopResult]: For program point L1247(lines 1247 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,164 INFO L274 CegarLoopResult]: For program point L124(lines 124 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,164 INFO L274 CegarLoopResult]: For program point L917(lines 917 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,164 INFO L274 CegarLoopResult]: For program point L719(lines 719 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,164 INFO L274 CegarLoopResult]: For program point L653(lines 653 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,164 INFO L274 CegarLoopResult]: For program point L191(lines 191 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,165 INFO L274 CegarLoopResult]: For program point L1315(lines 1315 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,165 INFO L274 CegarLoopResult]: For program point L258(lines 258 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,165 INFO L274 CegarLoopResult]: For program point L1183(lines 1183 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,165 INFO L274 CegarLoopResult]: For program point L985(lines 985 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,165 INFO L274 CegarLoopResult]: For program point L787(lines 787 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,165 INFO L274 CegarLoopResult]: For program point L523(lines 523 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,165 INFO L274 CegarLoopResult]: For program point L854(lines 854 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,165 INFO L274 CegarLoopResult]: For program point L460(lines 460 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,165 INFO L274 CegarLoopResult]: For program point L593(lines 593 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,165 INFO L274 CegarLoopResult]: For program point L1452(lines 1452 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,165 INFO L274 CegarLoopResult]: For program point L329(lines 329 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,165 INFO L274 CegarLoopResult]: For program point L1122(lines 1122 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,165 INFO L274 CegarLoopResult]: For program point L65(lines 65 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,165 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-30 03:12:37,165 INFO L274 CegarLoopResult]: For program point L794(lines 794 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,165 INFO L274 CegarLoopResult]: For program point L1323(lines 1323 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,165 INFO L274 CegarLoopResult]: For program point L993(lines 993 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,166 INFO L274 CegarLoopResult]: For program point L927(lines 927 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,166 INFO L274 CegarLoopResult]: For program point L663(lines 663 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,166 INFO L274 CegarLoopResult]: For program point L267(lines 267 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,166 INFO L274 CegarLoopResult]: For program point L201(lines 201 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,166 INFO L274 CegarLoopResult]: For program point L1192(lines 1192 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,166 INFO L274 CegarLoopResult]: For program point L532(lines 532 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,166 INFO L274 CegarLoopResult]: For program point L1391(lines 1391 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,166 INFO L274 CegarLoopResult]: For program point L1259(lines 1259 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,166 INFO L274 CegarLoopResult]: For program point L136(lines 136 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,166 INFO L274 CegarLoopResult]: For program point L863(lines 863 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,166 INFO L274 CegarLoopResult]: For program point L468(lines 468 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,166 INFO L274 CegarLoopResult]: For program point L1130(lines 1130 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,166 INFO L274 CegarLoopResult]: For program point L668(lines 668 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,167 INFO L270 CegarLoopResult]: At program point L1659(lines 64 1660) the Hoare annotation is: (let ((.cse0 (= ~a12~0 1)) (.cse3 (= ~a27~0 1)) (.cse5 (= ~a12~0 0))) (let ((.cse1 (or (and .cse0 (= ~a27~0 0)) (and .cse3 .cse5))) (.cse4 (<= ~a6~0 0)) (.cse7 (= ~a26~0 1)) (.cse2 (= ~a3~0 0)) (.cse6 (= ~a11~0 1))) (or (and .cse0 (= ~a11~0 0)) (and .cse1 .cse2) (<= 1 ~a3~0) (and .cse3 .cse4) (and .cse5 .cse6) (and .cse1 .cse4) (and .cse0 .cse2 .cse6 .cse4) (and (= ~a5~0 1) .cse3) (= ~a6~0 1) (and .cse0 .cse3 .cse7 .cse2) (and .cse3 .cse7 .cse2 .cse6)))) [2020-11-30 03:12:37,167 INFO L274 CegarLoopResult]: For program point L602(lines 602 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,167 INFO L274 CegarLoopResult]: For program point L1462(lines 1462 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,167 INFO L274 CegarLoopResult]: For program point L339(lines 339 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,167 INFO L274 CegarLoopResult]: For program point L1331(lines 1331 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,167 INFO L277 CegarLoopResult]: At program point L1662(lines 1662 1679) the Hoare annotation is: true [2020-11-30 03:12:37,173 INFO L274 CegarLoopResult]: For program point L539(lines 539 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,173 INFO L274 CegarLoopResult]: For program point L407(lines 407 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,173 INFO L274 CegarLoopResult]: For program point L275(lines 275 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,173 INFO L274 CegarLoopResult]: For program point L1200(lines 1200 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,173 INFO L274 CegarLoopResult]: For program point L805(lines 805 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,173 INFO L274 CegarLoopResult]: For program point L145(lines 145 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,173 INFO L274 CegarLoopResult]: For program point L1004(lines 1004 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,173 INFO L274 CegarLoopResult]: For program point L1137(lines 1137 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,174 INFO L274 CegarLoopResult]: For program point L1071(lines 1071 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,174 INFO L274 CegarLoopResult]: For program point L873(lines 873 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,174 INFO L274 CegarLoopResult]: For program point L675(lines 675 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,174 INFO L274 CegarLoopResult]: For program point L477(lines 477 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,174 INFO L274 CegarLoopResult]: For program point L1336(lines 1336 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,174 INFO L274 CegarLoopResult]: For program point L743(lines 743 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,174 INFO L270 CegarLoopResult]: At program point L1668-2(lines 1668 1678) the Hoare annotation is: (let ((.cse0 (= ~a12~0 1)) (.cse3 (= ~a27~0 1)) (.cse5 (= ~a12~0 0))) (let ((.cse1 (or (and .cse0 (= ~a27~0 0)) (and .cse3 .cse5))) (.cse4 (<= ~a6~0 0)) (.cse7 (= ~a26~0 1)) (.cse2 (= ~a3~0 0)) (.cse6 (= ~a11~0 1))) (or (and .cse0 (= ~a11~0 0)) (and .cse1 .cse2) (<= 1 ~a3~0) (and .cse3 .cse4) (and .cse5 .cse6) (and .cse1 .cse4) (and .cse0 .cse2 .cse6 .cse4) (and (= ~a5~0 1) .cse3) (= ~a6~0 1) (and .cse0 .cse3 .cse7 .cse2) (and .cse3 .cse7 .cse2 .cse6)))) [2020-11-30 03:12:37,174 INFO L274 CegarLoopResult]: For program point L1470(lines 1470 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,174 INFO L274 CegarLoopResult]: For program point L83(lines 83 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,174 INFO L274 CegarLoopResult]: For program point L613(lines 613 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,174 INFO L274 CegarLoopResult]: For program point L415(lines 415 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,174 INFO L274 CegarLoopResult]: For program point L349(lines 349 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,174 INFO L274 CegarLoopResult]: For program point L1142(lines 1142 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,174 INFO L274 CegarLoopResult]: For program point L1076(lines 1076 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,175 INFO L274 CegarLoopResult]: For program point L878(lines 878 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,175 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 03:12:37,175 INFO L274 CegarLoopResult]: For program point L549(lines 549 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,175 INFO L274 CegarLoopResult]: For program point L1210(lines 1210 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,175 INFO L274 CegarLoopResult]: For program point L814(lines 814 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,175 INFO L274 CegarLoopResult]: For program point L1673(line 1673) no Hoare annotation was computed. [2020-11-30 03:12:37,175 INFO L274 CegarLoopResult]: For program point L286(lines 286 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,175 INFO L274 CegarLoopResult]: For program point L1013(lines 1013 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,175 INFO L274 CegarLoopResult]: For program point L947(lines 947 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,175 INFO L274 CegarLoopResult]: For program point L156(lines 156 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,175 INFO L274 CegarLoopResult]: For program point L685(lines 685 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,175 INFO L274 CegarLoopResult]: For program point L1412(lines 1412 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,175 INFO L274 CegarLoopResult]: For program point L1346(lines 1346 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,175 INFO L274 CegarLoopResult]: For program point L223(lines 223 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,175 INFO L274 CegarLoopResult]: For program point L92(lines 92 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,175 INFO L274 CegarLoopResult]: For program point L753(lines 753 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,175 INFO L274 CegarLoopResult]: For program point L1084(lines 1084 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,176 INFO L274 CegarLoopResult]: For program point L556(lines 556 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,176 INFO L274 CegarLoopResult]: For program point L490(lines 490 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,176 INFO L274 CegarLoopResult]: For program point L424(lines 424 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,176 INFO L274 CegarLoopResult]: For program point L358(lines 358 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,176 INFO L274 CegarLoopResult]: For program point L1284(lines 1284 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,176 INFO L274 CegarLoopResult]: For program point L1152(lines 1152 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,176 INFO L274 CegarLoopResult]: For program point L624(lines 624 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,176 INFO L274 CegarLoopResult]: For program point L294(lines 294 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,176 INFO L274 CegarLoopResult]: For program point L1021(lines 1021 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,176 INFO L274 CegarLoopResult]: For program point L823(lines 823 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,176 INFO L274 CegarLoopResult]: For program point L1220(lines 1220 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,176 INFO L274 CegarLoopResult]: For program point L957(lines 957 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,176 INFO L274 CegarLoopResult]: For program point L1354(lines 1354 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,176 INFO L274 CegarLoopResult]: For program point L165(lines 165 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,176 INFO L274 CegarLoopResult]: For program point L99(lines 99 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,176 INFO L274 CegarLoopResult]: For program point L694(lines 694 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,176 INFO L274 CegarLoopResult]: For program point L232(lines 232 1475) no Hoare annotation was computed. [2020-11-30 03:12:37,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 03:12:37 BoogieIcfgContainer [2020-11-30 03:12:37,227 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 03:12:37,228 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 03:12:37,228 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 03:12:37,228 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 03:12:37,229 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:12:01" (3/4) ... [2020-11-30 03:12:37,232 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 03:12:37,279 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 120 nodes and edges [2020-11-30 03:12:37,290 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2020-11-30 03:12:37,294 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-11-30 03:12:37,298 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-30 03:12:37,611 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_73b4f300-d69e-4194-a298-81c0813cd976/bin/utaipan/witness.graphml [2020-11-30 03:12:37,611 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 03:12:37,613 INFO L168 Benchmark]: Toolchain (without parser) took 42164.88 ms. Allocated memory was 88.1 MB in the beginning and 6.8 GB in the end (delta: 6.8 GB). Free memory was 50.6 MB in the beginning and 6.2 GB in the end (delta: -6.1 GB). Peak memory consumption was 942.4 MB. Max. memory is 16.1 GB. [2020-11-30 03:12:37,614 INFO L168 Benchmark]: CDTParser took 4.57 ms. Allocated memory was 71.3 MB in the beginning and 88.1 MB in the end (delta: 16.8 MB). Free memory was 33.4 MB in the beginning and 65.7 MB in the end (delta: -32.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-11-30 03:12:37,614 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1406.57 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 50.4 MB in the beginning and 53.5 MB in the end (delta: -3.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:12:37,615 INFO L168 Benchmark]: Boogie Procedure Inliner took 197.53 ms. Allocated memory is still 107.0 MB. Free memory was 53.5 MB in the beginning and 67.4 MB in the end (delta: -13.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 16.1 GB. [2020-11-30 03:12:37,615 INFO L168 Benchmark]: Boogie Preprocessor took 140.53 ms. Allocated memory is still 107.0 MB. Free memory was 67.4 MB in the beginning and 56.4 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 03:12:37,615 INFO L168 Benchmark]: RCFGBuilder took 4322.86 ms. Allocated memory was 107.0 MB in the beginning and 176.2 MB in the end (delta: 69.2 MB). Free memory was 56.4 MB in the beginning and 108.9 MB in the end (delta: -52.5 MB). Peak memory consumption was 78.3 MB. Max. memory is 16.1 GB. [2020-11-30 03:12:37,616 INFO L168 Benchmark]: TraceAbstraction took 35705.84 ms. Allocated memory was 176.2 MB in the beginning and 6.8 GB in the end (delta: 6.7 GB). Free memory was 108.9 MB in the beginning and 5.9 GB in the end (delta: -5.8 GB). Peak memory consumption was 948.5 MB. Max. memory is 16.1 GB. [2020-11-30 03:12:37,616 INFO L168 Benchmark]: Witness Printer took 383.67 ms. Allocated memory is still 6.8 GB. Free memory was 5.9 GB in the beginning and 6.2 GB in the end (delta: -299.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-30 03:12:37,619 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 4.57 ms. Allocated memory was 71.3 MB in the beginning and 88.1 MB in the end (delta: 16.8 MB). Free memory was 33.4 MB in the beginning and 65.7 MB in the end (delta: -32.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1406.57 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 50.4 MB in the beginning and 53.5 MB in the end (delta: -3.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 197.53 ms. Allocated memory is still 107.0 MB. Free memory was 53.5 MB in the beginning and 67.4 MB in the end (delta: -13.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 140.53 ms. Allocated memory is still 107.0 MB. Free memory was 67.4 MB in the beginning and 56.4 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 4322.86 ms. Allocated memory was 107.0 MB in the beginning and 176.2 MB in the end (delta: 69.2 MB). Free memory was 56.4 MB in the beginning and 108.9 MB in the end (delta: -52.5 MB). Peak memory consumption was 78.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 35705.84 ms. Allocated memory was 176.2 MB in the beginning and 6.8 GB in the end (delta: 6.7 GB). Free memory was 108.9 MB in the beginning and 5.9 GB in the end (delta: -5.8 GB). Peak memory consumption was 948.5 MB. Max. memory is 16.1 GB. * Witness Printer took 383.67 ms. Allocated memory is still 6.8 GB. Free memory was 5.9 GB in the beginning and 6.2 GB in the end (delta: -299.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1662]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1668]: Loop Invariant Derived loop invariant: ((((((((((a12 == 1 && a11 == 0) || (((a12 == 1 && a27 == 0) || (a27 == 1 && a12 == 0)) && a3 == 0)) || 1 <= a3) || (a27 == 1 && a6 <= 0)) || (a12 == 0 && a11 == 1)) || (((a12 == 1 && a27 == 0) || (a27 == 1 && a12 == 0)) && a6 <= 0)) || (((a12 == 1 && a3 == 0) && a11 == 1) && a6 <= 0)) || (a5 == 1 && a27 == 1)) || a6 == 1) || (((a12 == 1 && a27 == 1) && a26 == 1) && a3 == 0)) || (((a27 == 1 && a26 == 1) && a3 == 0) && a11 == 1) - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: ((((((((((a12 == 1 && a11 == 0) || (((a12 == 1 && a27 == 0) || (a27 == 1 && a12 == 0)) && a3 == 0)) || 1 <= a3) || (a27 == 1 && a6 <= 0)) || (a12 == 0 && a11 == 1)) || (((a12 == 1 && a27 == 0) || (a27 == 1 && a12 == 0)) && a6 <= 0)) || (((a12 == 1 && a3 == 0) && a11 == 1) && a6 <= 0)) || (a5 == 1 && a27 == 1)) || a6 == 1) || (((a12 == 1 && a27 == 1) && a26 == 1) && a3 == 0)) || (((a27 == 1 && a26 == 1) && a3 == 0) && a11 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 148 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 32.9s, OverallIterations: 14, TraceHistogramMax: 6, AutomataDifference: 20.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1933 SDtfs, 1964 SDslu, 230 SDs, 0 SdLazy, 7565 SolverSat, 2085 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1631 GetRequests, 1607 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63066occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.5s AutomataMinimizationTime, 14 MinimizatonAttempts, 13446 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 853 NumberOfFragments, 225 HoareAnnotationTreeSize, 3 FomulaSimplifications, 37146 FormulaSimplificationTreeSizeReduction, 2.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 702 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 3672 NumberOfCodeBlocks, 3672 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 4452 ConstructedInterpolants, 0 QuantifiedInterpolants, 3508032 SizeOfPredicates, 38 NumberOfNonLiveVariables, 1637 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 20 InterpolantComputations, 17 PerfectInterpolantSequences, 2397/2415 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...