./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem03_label40.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_42c4ecfc-560a-41cb-9989-ea445537314a/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_42c4ecfc-560a-41cb-9989-ea445537314a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_42c4ecfc-560a-41cb-9989-ea445537314a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_42c4ecfc-560a-41cb-9989-ea445537314a/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem03_label40.c -s /tmp/vcloud-vcloud-master/worker/run_dir_42c4ecfc-560a-41cb-9989-ea445537314a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_42c4ecfc-560a-41cb-9989-ea445537314a/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bdb5233f5cbaadb62146f934f5ab86553cda8ead ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 20:41:01,051 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:41:01,055 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:41:01,118 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:41:01,119 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:41:01,120 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:41:01,141 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:41:01,146 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:41:01,150 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:41:01,158 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:41:01,160 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:41:01,162 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:41:01,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:41:01,169 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:41:01,172 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:41:01,175 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:41:01,176 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:41:01,178 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:41:01,184 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:41:01,192 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:41:01,194 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:41:01,196 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:41:01,198 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:41:01,199 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:41:01,209 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:41:01,210 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:41:01,210 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:41:01,212 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:41:01,213 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:41:01,214 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:41:01,215 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:41:01,216 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:41:01,219 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:41:01,220 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:41:01,222 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:41:01,222 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:41:01,223 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:41:01,224 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:41:01,224 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:41:01,225 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:41:01,226 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:41:01,229 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_42c4ecfc-560a-41cb-9989-ea445537314a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 20:41:01,269 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:41:01,269 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:41:01,271 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:41:01,272 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:41:01,272 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:41:01,272 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:41:01,272 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:41:01,273 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:41:01,273 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:41:01,273 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:41:01,274 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 20:41:01,275 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 20:41:01,275 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 20:41:01,275 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:41:01,276 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:41:01,276 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:41:01,276 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 20:41:01,276 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:41:01,277 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:41:01,277 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 20:41:01,277 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 20:41:01,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 20:41:01,278 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:41:01,278 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 20:41:01,278 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 20:41:01,279 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:41:01,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 20:41:01,279 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 20:41:01,279 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:41:01,280 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_42c4ecfc-560a-41cb-9989-ea445537314a/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_42c4ecfc-560a-41cb-9989-ea445537314a/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bdb5233f5cbaadb62146f934f5ab86553cda8ead [2020-11-29 20:41:01,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:41:01,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:41:01,644 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:41:01,645 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:41:01,652 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:41:01,653 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_42c4ecfc-560a-41cb-9989-ea445537314a/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem03_label40.c [2020-11-29 20:41:01,736 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_42c4ecfc-560a-41cb-9989-ea445537314a/bin/uautomizer/data/44f1b5859/389f9a3d8b8041a9ba68239085685011/FLAG744cf437b [2020-11-29 20:41:02,641 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:41:02,641 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_42c4ecfc-560a-41cb-9989-ea445537314a/sv-benchmarks/c/eca-rers2012/Problem03_label40.c [2020-11-29 20:41:02,667 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_42c4ecfc-560a-41cb-9989-ea445537314a/bin/uautomizer/data/44f1b5859/389f9a3d8b8041a9ba68239085685011/FLAG744cf437b [2020-11-29 20:41:02,696 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_42c4ecfc-560a-41cb-9989-ea445537314a/bin/uautomizer/data/44f1b5859/389f9a3d8b8041a9ba68239085685011 [2020-11-29 20:41:02,700 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:41:02,702 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:41:02,707 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:41:02,707 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:41:02,711 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:41:02,712 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:41:02" (1/1) ... [2020-11-29 20:41:02,715 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ed90691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:41:02, skipping insertion in model container [2020-11-29 20:41:02,716 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:41:02" (1/1) ... [2020-11-29 20:41:02,723 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:41:02,810 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:41:03,527 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:41:03,541 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:41:03,947 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:41:03,970 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:41:03,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:41:03 WrapperNode [2020-11-29 20:41:03,972 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:41:03,974 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:41:03,975 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:41:03,975 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:41:03,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:41:03" (1/1) ... [2020-11-29 20:41:04,044 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:41:03" (1/1) ... [2020-11-29 20:41:04,152 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:41:04,153 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:41:04,154 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:41:04,154 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:41:04,163 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:41:03" (1/1) ... [2020-11-29 20:41:04,164 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:41:03" (1/1) ... [2020-11-29 20:41:04,172 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:41:03" (1/1) ... [2020-11-29 20:41:04,172 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:41:03" (1/1) ... [2020-11-29 20:41:04,216 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:41:03" (1/1) ... [2020-11-29 20:41:04,230 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:41:03" (1/1) ... [2020-11-29 20:41:04,240 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:41:03" (1/1) ... [2020-11-29 20:41:04,254 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:41:04,255 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:41:04,256 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:41:04,256 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:41:04,257 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:41:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_42c4ecfc-560a-41cb-9989-ea445537314a/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 20:41:04,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 20:41:04,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:41:04,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:41:04,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:41:06,657 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:41:06,657 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-29 20:41:06,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:41:06 BoogieIcfgContainer [2020-11-29 20:41:06,660 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:41:06,662 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 20:41:06,662 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 20:41:06,668 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 20:41:06,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 08:41:02" (1/3) ... [2020-11-29 20:41:06,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@220844a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:41:06, skipping insertion in model container [2020-11-29 20:41:06,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:41:03" (2/3) ... [2020-11-29 20:41:06,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@220844a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:41:06, skipping insertion in model container [2020-11-29 20:41:06,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:41:06" (3/3) ... [2020-11-29 20:41:06,671 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem03_label40.c [2020-11-29 20:41:06,683 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 20:41:06,688 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 20:41:06,701 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 20:41:06,750 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 20:41:06,750 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 20:41:06,751 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 20:41:06,751 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:41:06,751 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:41:06,751 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 20:41:06,751 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:41:06,751 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 20:41:06,782 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states. [2020-11-29 20:41:06,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-11-29 20:41:06,816 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:41:06,817 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:41:06,818 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:41:06,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:41:06,827 INFO L82 PathProgramCache]: Analyzing trace with hash 359811874, now seen corresponding path program 1 times [2020-11-29 20:41:06,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:41:06,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059287540] [2020-11-29 20:41:06,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:41:07,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:41:07,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:41:07,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059287540] [2020-11-29 20:41:07,697 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:41:07,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:41:07,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401474340] [2020-11-29 20:41:07,705 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:41:07,706 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:41:07,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:41:07,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:41:07,724 INFO L87 Difference]: Start difference. First operand 303 states. Second operand 3 states. [2020-11-29 20:41:09,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:41:09,669 INFO L93 Difference]: Finished difference Result 839 states and 1486 transitions. [2020-11-29 20:41:09,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:41:09,671 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 184 [2020-11-29 20:41:09,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:41:09,690 INFO L225 Difference]: With dead ends: 839 [2020-11-29 20:41:09,690 INFO L226 Difference]: Without dead ends: 458 [2020-11-29 20:41:09,696 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 [2020-11-29 20:41:09,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2020-11-29 20:41:09,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 447. [2020-11-29 20:41:09,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 447 states. [2020-11-29 20:41:09,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 710 transitions. [2020-11-29 20:41:09,790 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 710 transitions. Word has length 184 [2020-11-29 20:41:09,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:41:09,794 INFO L481 AbstractCegarLoop]: Abstraction has 447 states and 710 transitions. [2020-11-29 20:41:09,794 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:41:09,795 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 710 transitions. [2020-11-29 20:41:09,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-11-29 20:41:09,804 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:41:09,805 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:41:09,805 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 20:41:09,806 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:41:09,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:41:09,809 INFO L82 PathProgramCache]: Analyzing trace with hash -2119251192, now seen corresponding path program 1 times [2020-11-29 20:41:09,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:41:09,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541081547] [2020-11-29 20:41:09,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:41:09,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:41:10,041 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:41:10,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541081547] [2020-11-29 20:41:10,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:41:10,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:41:10,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609532514] [2020-11-29 20:41:10,046 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:41:10,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:41:10,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:41:10,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:41:10,049 INFO L87 Difference]: Start difference. First operand 447 states and 710 transitions. Second operand 3 states. [2020-11-29 20:41:11,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:41:11,455 INFO L93 Difference]: Finished difference Result 1298 states and 2071 transitions. [2020-11-29 20:41:11,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:41:11,466 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2020-11-29 20:41:11,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:41:11,472 INFO L225 Difference]: With dead ends: 1298 [2020-11-29 20:41:11,472 INFO L226 Difference]: Without dead ends: 853 [2020-11-29 20:41:11,475 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 [2020-11-29 20:41:11,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2020-11-29 20:41:11,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 853. [2020-11-29 20:41:11,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 853 states. [2020-11-29 20:41:11,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 1182 transitions. [2020-11-29 20:41:11,522 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 1182 transitions. Word has length 190 [2020-11-29 20:41:11,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:41:11,523 INFO L481 AbstractCegarLoop]: Abstraction has 853 states and 1182 transitions. [2020-11-29 20:41:11,523 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:41:11,523 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 1182 transitions. [2020-11-29 20:41:11,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-11-29 20:41:11,531 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:41:11,531 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:41:11,532 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 20:41:11,532 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:41:11,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:41:11,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1665563104, now seen corresponding path program 1 times [2020-11-29 20:41:11,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:41:11,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464650375] [2020-11-29 20:41:11,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:41:11,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:41:11,708 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:41:11,708 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464650375] [2020-11-29 20:41:11,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:41:11,709 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:41:11,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741381838] [2020-11-29 20:41:11,710 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:41:11,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:41:11,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:41:11,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:41:11,717 INFO L87 Difference]: Start difference. First operand 853 states and 1182 transitions. Second operand 3 states. [2020-11-29 20:41:12,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:41:12,491 INFO L93 Difference]: Finished difference Result 1686 states and 2336 transitions. [2020-11-29 20:41:12,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:41:12,493 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 197 [2020-11-29 20:41:12,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:41:12,500 INFO L225 Difference]: With dead ends: 1686 [2020-11-29 20:41:12,501 INFO L226 Difference]: Without dead ends: 835 [2020-11-29 20:41:12,503 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 [2020-11-29 20:41:12,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2020-11-29 20:41:12,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 835. [2020-11-29 20:41:12,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 835 states. [2020-11-29 20:41:12,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1126 transitions. [2020-11-29 20:41:12,549 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1126 transitions. Word has length 197 [2020-11-29 20:41:12,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:41:12,550 INFO L481 AbstractCegarLoop]: Abstraction has 835 states and 1126 transitions. [2020-11-29 20:41:12,550 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:41:12,550 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1126 transitions. [2020-11-29 20:41:12,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-11-29 20:41:12,555 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:41:12,555 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:41:12,556 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 20:41:12,556 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:41:12,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:41:12,558 INFO L82 PathProgramCache]: Analyzing trace with hash -889248407, now seen corresponding path program 1 times [2020-11-29 20:41:12,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:41:12,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507495831] [2020-11-29 20:41:12,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:41:12,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:41:12,682 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-29 20:41:12,683 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507495831] [2020-11-29 20:41:12,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:41:12,683 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:41:12,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686281925] [2020-11-29 20:41:12,684 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:41:12,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:41:12,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:41:12,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:41:12,686 INFO L87 Difference]: Start difference. First operand 835 states and 1126 transitions. Second operand 3 states. [2020-11-29 20:41:14,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:41:14,147 INFO L93 Difference]: Finished difference Result 2489 states and 3360 transitions. [2020-11-29 20:41:14,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:41:14,148 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 198 [2020-11-29 20:41:14,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:41:14,159 INFO L225 Difference]: With dead ends: 2489 [2020-11-29 20:41:14,159 INFO L226 Difference]: Without dead ends: 1656 [2020-11-29 20:41:14,161 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 [2020-11-29 20:41:14,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1656 states. [2020-11-29 20:41:14,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1656 to 1650. [2020-11-29 20:41:14,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1650 states. [2020-11-29 20:41:14,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1650 states to 1650 states and 2180 transitions. [2020-11-29 20:41:14,220 INFO L78 Accepts]: Start accepts. Automaton has 1650 states and 2180 transitions. Word has length 198 [2020-11-29 20:41:14,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:41:14,221 INFO L481 AbstractCegarLoop]: Abstraction has 1650 states and 2180 transitions. [2020-11-29 20:41:14,221 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:41:14,221 INFO L276 IsEmpty]: Start isEmpty. Operand 1650 states and 2180 transitions. [2020-11-29 20:41:14,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-11-29 20:41:14,227 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:41:14,228 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:41:14,228 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 20:41:14,228 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:41:14,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:41:14,229 INFO L82 PathProgramCache]: Analyzing trace with hash -1702775082, now seen corresponding path program 1 times [2020-11-29 20:41:14,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:41:14,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127327853] [2020-11-29 20:41:14,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:41:14,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:41:14,392 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-29 20:41:14,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127327853] [2020-11-29 20:41:14,393 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:41:14,393 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:41:14,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991580462] [2020-11-29 20:41:14,394 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:41:14,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:41:14,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:41:14,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:41:14,395 INFO L87 Difference]: Start difference. First operand 1650 states and 2180 transitions. Second operand 3 states. [2020-11-29 20:41:15,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:41:15,737 INFO L93 Difference]: Finished difference Result 4724 states and 6286 transitions. [2020-11-29 20:41:15,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:41:15,738 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 205 [2020-11-29 20:41:15,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:41:15,756 INFO L225 Difference]: With dead ends: 4724 [2020-11-29 20:41:15,756 INFO L226 Difference]: Without dead ends: 3076 [2020-11-29 20:41:15,759 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:41:15,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3076 states. [2020-11-29 20:41:15,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3076 to 3073. [2020-11-29 20:41:15,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3073 states. [2020-11-29 20:41:15,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3073 states to 3073 states and 3933 transitions. [2020-11-29 20:41:15,846 INFO L78 Accepts]: Start accepts. Automaton has 3073 states and 3933 transitions. Word has length 205 [2020-11-29 20:41:15,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:41:15,846 INFO L481 AbstractCegarLoop]: Abstraction has 3073 states and 3933 transitions. [2020-11-29 20:41:15,847 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:41:15,847 INFO L276 IsEmpty]: Start isEmpty. Operand 3073 states and 3933 transitions. [2020-11-29 20:41:15,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-11-29 20:41:15,855 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:41:15,856 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:41:15,856 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 20:41:15,856 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:41:15,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:41:15,857 INFO L82 PathProgramCache]: Analyzing trace with hash 705199882, now seen corresponding path program 1 times [2020-11-29 20:41:15,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:41:15,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578530260] [2020-11-29 20:41:15,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:41:15,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:41:15,999 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:41:15,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578530260] [2020-11-29 20:41:16,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:41:16,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:41:16,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059357803] [2020-11-29 20:41:16,001 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:41:16,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:41:16,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:41:16,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:41:16,004 INFO L87 Difference]: Start difference. First operand 3073 states and 3933 transitions. Second operand 3 states. [2020-11-29 20:41:17,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:41:17,400 INFO L93 Difference]: Finished difference Result 7377 states and 9469 transitions. [2020-11-29 20:41:17,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:41:17,400 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 212 [2020-11-29 20:41:17,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:41:17,427 INFO L225 Difference]: With dead ends: 7377 [2020-11-29 20:41:17,428 INFO L226 Difference]: Without dead ends: 4306 [2020-11-29 20:41:17,432 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 [2020-11-29 20:41:17,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4306 states. [2020-11-29 20:41:17,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4306 to 4303. [2020-11-29 20:41:17,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4303 states. [2020-11-29 20:41:17,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4303 states to 4303 states and 5516 transitions. [2020-11-29 20:41:17,538 INFO L78 Accepts]: Start accepts. Automaton has 4303 states and 5516 transitions. Word has length 212 [2020-11-29 20:41:17,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:41:17,543 INFO L481 AbstractCegarLoop]: Abstraction has 4303 states and 5516 transitions. [2020-11-29 20:41:17,543 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:41:17,543 INFO L276 IsEmpty]: Start isEmpty. Operand 4303 states and 5516 transitions. [2020-11-29 20:41:17,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-11-29 20:41:17,554 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:41:17,555 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:41:17,555 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 20:41:17,555 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:41:17,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:41:17,556 INFO L82 PathProgramCache]: Analyzing trace with hash 701359963, now seen corresponding path program 1 times [2020-11-29 20:41:17,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:41:17,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588732307] [2020-11-29 20:41:17,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:41:17,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:41:17,751 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:41:17,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588732307] [2020-11-29 20:41:17,752 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:41:17,752 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:41:17,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569665983] [2020-11-29 20:41:17,753 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:41:17,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:41:17,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:41:17,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:41:17,754 INFO L87 Difference]: Start difference. First operand 4303 states and 5516 transitions. Second operand 3 states. [2020-11-29 20:41:19,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:41:19,026 INFO L93 Difference]: Finished difference Result 12084 states and 15659 transitions. [2020-11-29 20:41:19,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:41:19,033 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 218 [2020-11-29 20:41:19,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:41:19,077 INFO L225 Difference]: With dead ends: 12084 [2020-11-29 20:41:19,077 INFO L226 Difference]: Without dead ends: 7783 [2020-11-29 20:41:19,084 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 [2020-11-29 20:41:19,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7783 states. [2020-11-29 20:41:19,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7783 to 7779. [2020-11-29 20:41:19,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7779 states. [2020-11-29 20:41:19,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7779 states to 7779 states and 10065 transitions. [2020-11-29 20:41:19,279 INFO L78 Accepts]: Start accepts. Automaton has 7779 states and 10065 transitions. Word has length 218 [2020-11-29 20:41:19,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:41:19,280 INFO L481 AbstractCegarLoop]: Abstraction has 7779 states and 10065 transitions. [2020-11-29 20:41:19,280 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:41:19,280 INFO L276 IsEmpty]: Start isEmpty. Operand 7779 states and 10065 transitions. [2020-11-29 20:41:19,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-11-29 20:41:19,298 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:41:19,298 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:41:19,299 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 20:41:19,299 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:41:19,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:41:19,300 INFO L82 PathProgramCache]: Analyzing trace with hash 933596599, now seen corresponding path program 1 times [2020-11-29 20:41:19,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:41:19,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741036289] [2020-11-29 20:41:19,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:41:19,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:41:19,452 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 34 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:41:19,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741036289] [2020-11-29 20:41:19,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606204224] [2020-11-29 20:41:19,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_42c4ecfc-560a-41cb-9989-ea445537314a/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 20:41:19,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:41:19,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 20:41:19,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:41:19,971 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-11-29 20:41:19,971 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 20:41:19,972 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2020-11-29 20:41:19,972 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419225605] [2020-11-29 20:41:19,973 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:41:19,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:41:19,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:41:19,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:41:19,974 INFO L87 Difference]: Start difference. First operand 7779 states and 10065 transitions. Second operand 3 states. [2020-11-29 20:41:21,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:41:21,689 INFO L93 Difference]: Finished difference Result 22905 states and 29721 transitions. [2020-11-29 20:41:21,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:41:21,690 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 219 [2020-11-29 20:41:21,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:41:21,755 INFO L225 Difference]: With dead ends: 22905 [2020-11-29 20:41:21,755 INFO L226 Difference]: Without dead ends: 15331 [2020-11-29 20:41:21,766 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:41:21,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15331 states. [2020-11-29 20:41:22,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15331 to 15327. [2020-11-29 20:41:22,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15327 states. [2020-11-29 20:41:22,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15327 states to 15327 states and 19316 transitions. [2020-11-29 20:41:22,101 INFO L78 Accepts]: Start accepts. Automaton has 15327 states and 19316 transitions. Word has length 219 [2020-11-29 20:41:22,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:41:22,101 INFO L481 AbstractCegarLoop]: Abstraction has 15327 states and 19316 transitions. [2020-11-29 20:41:22,101 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:41:22,102 INFO L276 IsEmpty]: Start isEmpty. Operand 15327 states and 19316 transitions. [2020-11-29 20:41:22,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-11-29 20:41:22,128 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:41:22,129 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:41:22,346 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2020-11-29 20:41:22,346 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:41:22,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:41:22,346 INFO L82 PathProgramCache]: Analyzing trace with hash 722705120, now seen corresponding path program 1 times [2020-11-29 20:41:22,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:41:22,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210701008] [2020-11-29 20:41:22,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:41:22,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:41:22,565 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-29 20:41:22,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210701008] [2020-11-29 20:41:22,567 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:41:22,567 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:41:22,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643049003] [2020-11-29 20:41:22,567 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:41:22,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:41:22,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:41:22,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:41:22,570 INFO L87 Difference]: Start difference. First operand 15327 states and 19316 transitions. Second operand 3 states. [2020-11-29 20:41:23,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:41:23,800 INFO L93 Difference]: Finished difference Result 29207 states and 36839 transitions. [2020-11-29 20:41:23,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:41:23,801 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 232 [2020-11-29 20:41:23,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:41:23,830 INFO L225 Difference]: With dead ends: 29207 [2020-11-29 20:41:23,831 INFO L226 Difference]: Without dead ends: 14085 [2020-11-29 20:41:23,849 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:41:23,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14085 states. [2020-11-29 20:41:24,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14085 to 14081. [2020-11-29 20:41:24,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14081 states. [2020-11-29 20:41:24,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14081 states to 14081 states and 16847 transitions. [2020-11-29 20:41:24,221 INFO L78 Accepts]: Start accepts. Automaton has 14081 states and 16847 transitions. Word has length 232 [2020-11-29 20:41:24,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:41:24,221 INFO L481 AbstractCegarLoop]: Abstraction has 14081 states and 16847 transitions. [2020-11-29 20:41:24,221 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:41:24,221 INFO L276 IsEmpty]: Start isEmpty. Operand 14081 states and 16847 transitions. [2020-11-29 20:41:24,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-11-29 20:41:24,251 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:41:24,252 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:41:24,252 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-29 20:41:24,252 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:41:24,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:41:24,253 INFO L82 PathProgramCache]: Analyzing trace with hash 220777350, now seen corresponding path program 1 times [2020-11-29 20:41:24,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:41:24,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641800789] [2020-11-29 20:41:24,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:41:24,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:41:24,443 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 55 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-11-29 20:41:24,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641800789] [2020-11-29 20:41:24,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781226443] [2020-11-29 20:41:24,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_42c4ecfc-560a-41cb-9989-ea445537314a/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 20:41:24,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:41:24,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 20:41:24,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:41:24,811 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-11-29 20:41:24,811 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 20:41:24,812 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2020-11-29 20:41:24,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602636217] [2020-11-29 20:41:24,812 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:41:24,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:41:24,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:41:24,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:41:24,813 INFO L87 Difference]: Start difference. First operand 14081 states and 16847 transitions. Second operand 3 states. [2020-11-29 20:41:26,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:41:26,221 INFO L93 Difference]: Finished difference Result 27967 states and 33489 transitions. [2020-11-29 20:41:26,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:41:26,222 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 234 [2020-11-29 20:41:26,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:41:26,251 INFO L225 Difference]: With dead ends: 27967 [2020-11-29 20:41:26,251 INFO L226 Difference]: Without dead ends: 14091 [2020-11-29 20:41:26,268 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:41:26,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14091 states. [2020-11-29 20:41:26,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14091 to 14081. [2020-11-29 20:41:26,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14081 states. [2020-11-29 20:41:26,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14081 states to 14081 states and 16378 transitions. [2020-11-29 20:41:26,587 INFO L78 Accepts]: Start accepts. Automaton has 14081 states and 16378 transitions. Word has length 234 [2020-11-29 20:41:26,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:41:26,588 INFO L481 AbstractCegarLoop]: Abstraction has 14081 states and 16378 transitions. [2020-11-29 20:41:26,588 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:41:26,588 INFO L276 IsEmpty]: Start isEmpty. Operand 14081 states and 16378 transitions. [2020-11-29 20:41:26,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-11-29 20:41:26,610 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:41:26,610 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:41:26,825 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-11-29 20:41:26,826 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:41:26,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:41:26,826 INFO L82 PathProgramCache]: Analyzing trace with hash 7267953, now seen corresponding path program 1 times [2020-11-29 20:41:26,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:41:26,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106016223] [2020-11-29 20:41:26,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:41:26,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:41:26,968 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-11-29 20:41:26,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106016223] [2020-11-29 20:41:26,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [49892762] [2020-11-29 20:41:26,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_42c4ecfc-560a-41cb-9989-ea445537314a/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 20:41:27,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:41:27,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 20:41:27,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:41:27,244 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-11-29 20:41:27,244 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 20:41:27,244 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-11-29 20:41:27,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358612871] [2020-11-29 20:41:27,245 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:41:27,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:41:27,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:41:27,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:41:27,246 INFO L87 Difference]: Start difference. First operand 14081 states and 16378 transitions. Second operand 3 states. [2020-11-29 20:41:28,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:41:28,561 INFO L93 Difference]: Finished difference Result 27768 states and 32344 transitions. [2020-11-29 20:41:28,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:41:28,562 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 236 [2020-11-29 20:41:28,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:41:28,584 INFO L225 Difference]: With dead ends: 27768 [2020-11-29 20:41:28,584 INFO L226 Difference]: Without dead ends: 13892 [2020-11-29 20:41:28,601 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:41:28,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13892 states. [2020-11-29 20:41:28,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13892 to 13878. [2020-11-29 20:41:28,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13878 states. [2020-11-29 20:41:28,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13878 states to 13878 states and 16063 transitions. [2020-11-29 20:41:28,887 INFO L78 Accepts]: Start accepts. Automaton has 13878 states and 16063 transitions. Word has length 236 [2020-11-29 20:41:28,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:41:28,887 INFO L481 AbstractCegarLoop]: Abstraction has 13878 states and 16063 transitions. [2020-11-29 20:41:28,888 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:41:28,888 INFO L276 IsEmpty]: Start isEmpty. Operand 13878 states and 16063 transitions. [2020-11-29 20:41:28,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-11-29 20:41:28,917 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:41:28,918 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:41:29,133 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-11-29 20:41:29,134 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:41:29,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:41:29,134 INFO L82 PathProgramCache]: Analyzing trace with hash 1674022158, now seen corresponding path program 1 times [2020-11-29 20:41:29,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:41:29,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682483948] [2020-11-29 20:41:29,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:41:29,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:41:29,324 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-11-29 20:41:29,325 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682483948] [2020-11-29 20:41:29,325 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:41:29,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:41:29,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289189598] [2020-11-29 20:41:29,326 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:41:29,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:41:29,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:41:29,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:41:29,327 INFO L87 Difference]: Start difference. First operand 13878 states and 16063 transitions. Second operand 3 states. [2020-11-29 20:41:30,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:41:30,365 INFO L93 Difference]: Finished difference Result 32852 states and 38133 transitions. [2020-11-29 20:41:30,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:41:30,365 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 241 [2020-11-29 20:41:30,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:41:30,400 INFO L225 Difference]: With dead ends: 32852 [2020-11-29 20:41:30,400 INFO L226 Difference]: Without dead ends: 19179 [2020-11-29 20:41:30,412 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:41:30,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19179 states. [2020-11-29 20:41:30,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19179 to 19156. [2020-11-29 20:41:30,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19156 states. [2020-11-29 20:41:30,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19156 states to 19156 states and 22173 transitions. [2020-11-29 20:41:30,703 INFO L78 Accepts]: Start accepts. Automaton has 19156 states and 22173 transitions. Word has length 241 [2020-11-29 20:41:30,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:41:30,704 INFO L481 AbstractCegarLoop]: Abstraction has 19156 states and 22173 transitions. [2020-11-29 20:41:30,704 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:41:30,704 INFO L276 IsEmpty]: Start isEmpty. Operand 19156 states and 22173 transitions. [2020-11-29 20:41:30,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-11-29 20:41:30,730 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:41:30,731 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:41:30,731 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-29 20:41:30,731 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:41:30,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:41:30,732 INFO L82 PathProgramCache]: Analyzing trace with hash 855363283, now seen corresponding path program 1 times [2020-11-29 20:41:30,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:41:30,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335253874] [2020-11-29 20:41:30,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:41:30,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:41:31,034 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-29 20:41:31,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335253874] [2020-11-29 20:41:31,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:41:31,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:41:31,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153119884] [2020-11-29 20:41:31,035 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:41:31,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:41:31,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:41:31,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:41:31,036 INFO L87 Difference]: Start difference. First operand 19156 states and 22173 transitions. Second operand 4 states. [2020-11-29 20:41:32,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:41:32,325 INFO L93 Difference]: Finished difference Result 49722 states and 57680 transitions. [2020-11-29 20:41:32,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:41:32,325 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 248 [2020-11-29 20:41:32,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:41:32,382 INFO L225 Difference]: With dead ends: 49722 [2020-11-29 20:41:32,382 INFO L226 Difference]: Without dead ends: 30771 [2020-11-29 20:41:32,396 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 [2020-11-29 20:41:32,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30771 states. [2020-11-29 20:41:32,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30771 to 24235. [2020-11-29 20:41:32,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24235 states. [2020-11-29 20:41:32,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24235 states to 24235 states and 28051 transitions. [2020-11-29 20:41:32,813 INFO L78 Accepts]: Start accepts. Automaton has 24235 states and 28051 transitions. Word has length 248 [2020-11-29 20:41:32,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:41:32,813 INFO L481 AbstractCegarLoop]: Abstraction has 24235 states and 28051 transitions. [2020-11-29 20:41:32,813 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:41:32,813 INFO L276 IsEmpty]: Start isEmpty. Operand 24235 states and 28051 transitions. [2020-11-29 20:41:32,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-11-29 20:41:32,826 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:41:32,826 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:41:32,826 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-29 20:41:32,826 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:41:32,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:41:32,827 INFO L82 PathProgramCache]: Analyzing trace with hash -927077490, now seen corresponding path program 1 times [2020-11-29 20:41:32,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:41:32,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63750979] [2020-11-29 20:41:32,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:41:32,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:41:32,975 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 71 proven. 6 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-11-29 20:41:32,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63750979] [2020-11-29 20:41:32,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [256058354] [2020-11-29 20:41:32,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_42c4ecfc-560a-41cb-9989-ea445537314a/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 20:41:33,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:41:33,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 20:41:33,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:41:33,254 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-11-29 20:41:33,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 20:41:33,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-11-29 20:41:33,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719683679] [2020-11-29 20:41:33,255 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:41:33,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:41:33,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:41:33,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:41:33,259 INFO L87 Difference]: Start difference. First operand 24235 states and 28051 transitions. Second operand 3 states. [2020-11-29 20:41:34,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:41:34,509 INFO L93 Difference]: Finished difference Result 55369 states and 64662 transitions. [2020-11-29 20:41:34,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:41:34,510 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 250 [2020-11-29 20:41:34,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:41:34,550 INFO L225 Difference]: With dead ends: 55369 [2020-11-29 20:41:34,550 INFO L226 Difference]: Without dead ends: 31339 [2020-11-29 20:41:34,565 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:41:34,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31339 states. [2020-11-29 20:41:34,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31339 to 29711. [2020-11-29 20:41:34,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29711 states. [2020-11-29 20:41:34,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29711 states to 29711 states and 33413 transitions. [2020-11-29 20:41:34,958 INFO L78 Accepts]: Start accepts. Automaton has 29711 states and 33413 transitions. Word has length 250 [2020-11-29 20:41:34,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:41:34,959 INFO L481 AbstractCegarLoop]: Abstraction has 29711 states and 33413 transitions. [2020-11-29 20:41:34,959 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:41:34,959 INFO L276 IsEmpty]: Start isEmpty. Operand 29711 states and 33413 transitions. [2020-11-29 20:41:34,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2020-11-29 20:41:34,970 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:41:34,971 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:41:35,177 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 20:41:35,177 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:41:35,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:41:35,178 INFO L82 PathProgramCache]: Analyzing trace with hash 687124153, now seen corresponding path program 1 times [2020-11-29 20:41:35,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:41:35,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535006829] [2020-11-29 20:41:35,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:41:35,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:41:35,623 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:41:35,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535006829] [2020-11-29 20:41:35,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:41:35,624 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:41:35,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789261336] [2020-11-29 20:41:35,625 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:41:35,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:41:35,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:41:35,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:41:35,627 INFO L87 Difference]: Start difference. First operand 29711 states and 33413 transitions. Second operand 3 states. [2020-11-29 20:41:36,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:41:36,645 INFO L93 Difference]: Finished difference Result 59012 states and 66390 transitions. [2020-11-29 20:41:36,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:41:36,645 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 280 [2020-11-29 20:41:36,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:41:36,647 INFO L225 Difference]: With dead ends: 59012 [2020-11-29 20:41:36,647 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 20:41:36,669 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:41:36,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 20:41:36,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 20:41:36,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 20:41:36,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 20:41:36,670 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 280 [2020-11-29 20:41:36,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:41:36,670 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:41:36,670 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:41:36,670 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 20:41:36,671 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 20:41:36,671 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-29 20:41:36,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 20:41:36,840 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 49 [2020-11-29 20:41:36,970 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 49 [2020-11-29 20:41:37,623 WARN L193 SmtUtils]: Spent 649.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-11-29 20:41:38,227 WARN L193 SmtUtils]: Spent 602.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-11-29 20:41:38,229 INFO L274 CegarLoopResult]: For program point L1621(line 1621) no Hoare annotation was computed. [2020-11-29 20:41:38,229 INFO L274 CegarLoopResult]: For program point L1555(line 1555) no Hoare annotation was computed. [2020-11-29 20:41:38,229 INFO L274 CegarLoopResult]: For program point L498(lines 498 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,229 INFO L274 CegarLoopResult]: For program point L1489(line 1489) no Hoare annotation was computed. [2020-11-29 20:41:38,229 INFO L274 CegarLoopResult]: For program point L432(lines 432 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,230 INFO L274 CegarLoopResult]: For program point L366(lines 366 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,230 INFO L274 CegarLoopResult]: For program point L763(lines 763 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,230 INFO L274 CegarLoopResult]: For program point L632(lines 632 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,230 INFO L274 CegarLoopResult]: For program point L566(lines 566 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,230 INFO L274 CegarLoopResult]: For program point L1623-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,230 INFO L274 CegarLoopResult]: For program point L1557-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,230 INFO L274 CegarLoopResult]: For program point L1491-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,230 INFO L274 CegarLoopResult]: For program point L302(lines 302 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,230 INFO L274 CegarLoopResult]: For program point L1293(lines 1293 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,230 INFO L274 CegarLoopResult]: For program point L1624(line 1624) no Hoare annotation was computed. [2020-11-29 20:41:38,230 INFO L274 CegarLoopResult]: For program point L1558(line 1558) no Hoare annotation was computed. [2020-11-29 20:41:38,230 INFO L274 CegarLoopResult]: For program point L1492(line 1492) no Hoare annotation was computed. [2020-11-29 20:41:38,230 INFO L274 CegarLoopResult]: For program point L1360(lines 1360 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,230 INFO L274 CegarLoopResult]: For program point L1294(lines 1294 1313) no Hoare annotation was computed. [2020-11-29 20:41:38,230 INFO L274 CegarLoopResult]: For program point L1294-2(lines 1294 1313) no Hoare annotation was computed. [2020-11-29 20:41:38,230 INFO L274 CegarLoopResult]: For program point L1162(lines 1162 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,230 INFO L274 CegarLoopResult]: For program point L105(lines 105 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,231 INFO L274 CegarLoopResult]: For program point L1096(lines 1096 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,231 INFO L274 CegarLoopResult]: For program point L1031(lines 1031 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,231 INFO L274 CegarLoopResult]: For program point L965(lines 965 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,231 INFO L274 CegarLoopResult]: For program point L899(lines 899 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,231 INFO L274 CegarLoopResult]: For program point L1626-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,231 INFO L274 CegarLoopResult]: For program point L1560-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,231 INFO L274 CegarLoopResult]: For program point L1494-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,231 INFO L274 CegarLoopResult]: For program point L1627(line 1627) no Hoare annotation was computed. [2020-11-29 20:41:38,231 INFO L274 CegarLoopResult]: For program point L1561(line 1561) no Hoare annotation was computed. [2020-11-29 20:41:38,231 INFO L274 CegarLoopResult]: For program point L1495(line 1495) no Hoare annotation was computed. [2020-11-29 20:41:38,231 INFO L274 CegarLoopResult]: For program point L174(lines 174 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,231 INFO L274 CegarLoopResult]: For program point L835(lines 835 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,231 INFO L274 CegarLoopResult]: For program point L1629-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,231 INFO L274 CegarLoopResult]: For program point L1563-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,231 INFO L274 CegarLoopResult]: For program point L1497-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,231 INFO L274 CegarLoopResult]: For program point L771(lines 771 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,231 INFO L274 CegarLoopResult]: For program point L1630(line 1630) no Hoare annotation was computed. [2020-11-29 20:41:38,232 INFO L274 CegarLoopResult]: For program point L1564(line 1564) no Hoare annotation was computed. [2020-11-29 20:41:38,232 INFO L274 CegarLoopResult]: For program point L507(lines 507 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,232 INFO L274 CegarLoopResult]: For program point L1498(line 1498) no Hoare annotation was computed. [2020-11-29 20:41:38,232 INFO L274 CegarLoopResult]: For program point L243(lines 243 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,232 INFO L274 CegarLoopResult]: For program point L508(lines 508 521) no Hoare annotation was computed. [2020-11-29 20:41:38,232 INFO L274 CegarLoopResult]: For program point L508-2(lines 508 521) no Hoare annotation was computed. [2020-11-29 20:41:38,232 INFO L274 CegarLoopResult]: For program point L1433(lines 1433 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,233 INFO L274 CegarLoopResult]: For program point L376(lines 376 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,233 INFO L274 CegarLoopResult]: For program point L1632-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,233 INFO L274 CegarLoopResult]: For program point L1566-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,233 INFO L274 CegarLoopResult]: For program point L1500-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,233 INFO L274 CegarLoopResult]: For program point L311(lines 311 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,233 INFO L274 CegarLoopResult]: For program point L1236(lines 1236 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,233 INFO L274 CegarLoopResult]: For program point L1633(line 1633) no Hoare annotation was computed. [2020-11-29 20:41:38,233 INFO L274 CegarLoopResult]: For program point L576(lines 576 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,233 INFO L274 CegarLoopResult]: For program point L1567(line 1567) no Hoare annotation was computed. [2020-11-29 20:41:38,233 INFO L274 CegarLoopResult]: For program point L1501(line 1501) no Hoare annotation was computed. [2020-11-29 20:41:38,233 INFO L274 CegarLoopResult]: For program point L444(lines 444 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,233 INFO L274 CegarLoopResult]: For program point L1369(lines 1369 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,233 INFO L274 CegarLoopResult]: For program point L1105(lines 1105 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,233 INFO L274 CegarLoopResult]: For program point L643(lines 643 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,234 INFO L274 CegarLoopResult]: For program point L1370(lines 1370 1389) no Hoare annotation was computed. [2020-11-29 20:41:38,234 INFO L274 CegarLoopResult]: For program point L1370-2(lines 1370 1389) no Hoare annotation was computed. [2020-11-29 20:41:38,234 INFO L274 CegarLoopResult]: For program point L1172(lines 1172 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,234 INFO L274 CegarLoopResult]: For program point L115(lines 115 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,234 INFO L274 CegarLoopResult]: For program point L1635-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,234 INFO L274 CegarLoopResult]: For program point L1569-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,234 INFO L274 CegarLoopResult]: For program point L1503-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,234 INFO L274 CegarLoopResult]: For program point L248(lines 248 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,235 INFO L274 CegarLoopResult]: For program point L182(lines 182 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,235 INFO L274 CegarLoopResult]: For program point L1041(lines 1041 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,235 INFO L274 CegarLoopResult]: For program point L909(lines 909 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,235 INFO L274 CegarLoopResult]: For program point L711(lines 711 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,235 INFO L274 CegarLoopResult]: For program point L1636(line 1636) no Hoare annotation was computed. [2020-11-29 20:41:38,235 INFO L274 CegarLoopResult]: For program point L1570(line 1570) no Hoare annotation was computed. [2020-11-29 20:41:38,235 INFO L274 CegarLoopResult]: For program point L1504(line 1504) no Hoare annotation was computed. [2020-11-29 20:41:38,235 INFO L274 CegarLoopResult]: For program point L976(lines 976 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,236 INFO L274 CegarLoopResult]: For program point L779(lines 779 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,236 INFO L274 CegarLoopResult]: For program point L1638-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,236 INFO L274 CegarLoopResult]: For program point L1572-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,236 INFO L274 CegarLoopResult]: For program point L1506-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,236 INFO L274 CegarLoopResult]: For program point L846(lines 846 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,236 INFO L274 CegarLoopResult]: For program point L1639(line 1639) no Hoare annotation was computed. [2020-11-29 20:41:38,236 INFO L274 CegarLoopResult]: For program point L1573(line 1573) no Hoare annotation was computed. [2020-11-29 20:41:38,236 INFO L274 CegarLoopResult]: For program point L1507(line 1507) no Hoare annotation was computed. [2020-11-29 20:41:38,237 INFO L274 CegarLoopResult]: For program point L451(lines 451 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,237 INFO L274 CegarLoopResult]: For program point L1442(lines 1442 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,237 INFO L274 CegarLoopResult]: For program point L584(lines 584 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,237 INFO L274 CegarLoopResult]: For program point L1641-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,237 INFO L274 CegarLoopResult]: For program point L1575-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,237 INFO L274 CegarLoopResult]: For program point L1509-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,237 INFO L274 CegarLoopResult]: For program point L1642(line 1642) no Hoare annotation was computed. [2020-11-29 20:41:38,237 INFO L274 CegarLoopResult]: For program point L1576(line 1576) no Hoare annotation was computed. [2020-11-29 20:41:38,238 INFO L274 CegarLoopResult]: For program point L1510(line 1510) no Hoare annotation was computed. [2020-11-29 20:41:38,238 INFO L274 CegarLoopResult]: For program point L387(lines 387 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,238 INFO L274 CegarLoopResult]: For program point L1114(lines 1114 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,238 INFO L274 CegarLoopResult]: For program point L1048(lines 1048 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,238 INFO L274 CegarLoopResult]: For program point L388(lines 388 405) no Hoare annotation was computed. [2020-11-29 20:41:38,238 INFO L274 CegarLoopResult]: For program point L322(lines 322 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,238 INFO L274 CegarLoopResult]: For program point L388-2(lines 388 405) no Hoare annotation was computed. [2020-11-29 20:41:38,238 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 20:41:38,238 INFO L274 CegarLoopResult]: For program point L1247(lines 1247 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,239 INFO L274 CegarLoopResult]: For program point L124(lines 124 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,239 INFO L274 CegarLoopResult]: For program point L1049(lines 1049 1069) no Hoare annotation was computed. [2020-11-29 20:41:38,239 INFO L274 CegarLoopResult]: For program point L1049-2(lines 1049 1069) no Hoare annotation was computed. [2020-11-29 20:41:38,239 INFO L274 CegarLoopResult]: For program point L917(lines 917 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,239 INFO L274 CegarLoopResult]: For program point L719(lines 719 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,239 INFO L274 CegarLoopResult]: For program point L653(lines 653 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,239 INFO L274 CegarLoopResult]: For program point L1644-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,239 INFO L274 CegarLoopResult]: For program point L1578-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,240 INFO L274 CegarLoopResult]: For program point L1512-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,240 INFO L274 CegarLoopResult]: For program point L191(lines 191 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,240 INFO L274 CegarLoopResult]: For program point L720(lines 720 741) no Hoare annotation was computed. [2020-11-29 20:41:38,240 INFO L274 CegarLoopResult]: For program point L720-2(lines 720 741) no Hoare annotation was computed. [2020-11-29 20:41:38,240 INFO L274 CegarLoopResult]: For program point L1645(line 1645) no Hoare annotation was computed. [2020-11-29 20:41:38,240 INFO L274 CegarLoopResult]: For program point L1579(line 1579) no Hoare annotation was computed. [2020-11-29 20:41:38,240 INFO L274 CegarLoopResult]: For program point L1513(line 1513) no Hoare annotation was computed. [2020-11-29 20:41:38,240 INFO L274 CegarLoopResult]: For program point L1315(lines 1315 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,241 INFO L274 CegarLoopResult]: For program point L258(lines 258 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,241 INFO L274 CegarLoopResult]: For program point L1183(lines 1183 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,241 INFO L274 CegarLoopResult]: For program point L985(lines 985 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,241 INFO L274 CegarLoopResult]: For program point L787(lines 787 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,241 INFO L274 CegarLoopResult]: For program point L523(lines 523 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,241 INFO L274 CegarLoopResult]: For program point L854(lines 854 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,241 INFO L274 CegarLoopResult]: For program point L1647-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,241 INFO L274 CegarLoopResult]: For program point L1581-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,242 INFO L274 CegarLoopResult]: For program point L1515-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,242 INFO L274 CegarLoopResult]: For program point L1648(line 1648) no Hoare annotation was computed. [2020-11-29 20:41:38,242 INFO L274 CegarLoopResult]: For program point L1582(line 1582) no Hoare annotation was computed. [2020-11-29 20:41:38,242 INFO L274 CegarLoopResult]: For program point L1516(line 1516) no Hoare annotation was computed. [2020-11-29 20:41:38,242 INFO L274 CegarLoopResult]: For program point L460(lines 460 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,242 INFO L274 CegarLoopResult]: For program point L593(lines 593 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,242 INFO L274 CegarLoopResult]: For program point L1650-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,243 INFO L274 CegarLoopResult]: For program point L1584-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,243 INFO L274 CegarLoopResult]: For program point L1518-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,243 INFO L274 CegarLoopResult]: For program point L1452(lines 1452 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,243 INFO L274 CegarLoopResult]: For program point L329(lines 329 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,243 INFO L274 CegarLoopResult]: For program point L1122(lines 1122 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,243 INFO L274 CegarLoopResult]: For program point L65(lines 65 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,243 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 20:41:38,243 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-29 20:41:38,244 INFO L274 CegarLoopResult]: For program point L1651(line 1651) no Hoare annotation was computed. [2020-11-29 20:41:38,244 INFO L274 CegarLoopResult]: For program point L1585(line 1585) no Hoare annotation was computed. [2020-11-29 20:41:38,244 INFO L274 CegarLoopResult]: For program point L1519(line 1519) no Hoare annotation was computed. [2020-11-29 20:41:38,244 INFO L274 CegarLoopResult]: For program point L66(lines 66 81) no Hoare annotation was computed. [2020-11-29 20:41:38,244 INFO L274 CegarLoopResult]: For program point L66-2(lines 66 81) no Hoare annotation was computed. [2020-11-29 20:41:38,244 INFO L274 CegarLoopResult]: For program point L794(lines 794 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,244 INFO L274 CegarLoopResult]: For program point L1653-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,244 INFO L274 CegarLoopResult]: For program point L1587-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,245 INFO L274 CegarLoopResult]: For program point L1521-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,245 INFO L274 CegarLoopResult]: For program point L1323(lines 1323 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,245 INFO L274 CegarLoopResult]: For program point L993(lines 993 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,245 INFO L274 CegarLoopResult]: For program point L927(lines 927 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,245 INFO L274 CegarLoopResult]: For program point L663(lines 663 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,245 INFO L274 CegarLoopResult]: For program point L1654(line 1654) no Hoare annotation was computed. [2020-11-29 20:41:38,245 INFO L274 CegarLoopResult]: For program point L1588(line 1588) no Hoare annotation was computed. [2020-11-29 20:41:38,245 INFO L274 CegarLoopResult]: For program point L1522(line 1522) no Hoare annotation was computed. [2020-11-29 20:41:38,246 INFO L274 CegarLoopResult]: For program point L267(lines 267 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,246 INFO L274 CegarLoopResult]: For program point L201(lines 201 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,246 INFO L274 CegarLoopResult]: For program point L1192(lines 1192 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,246 INFO L274 CegarLoopResult]: For program point L928(lines 928 945) no Hoare annotation was computed. [2020-11-29 20:41:38,246 INFO L274 CegarLoopResult]: For program point L928-2(lines 928 945) no Hoare annotation was computed. [2020-11-29 20:41:38,246 INFO L274 CegarLoopResult]: For program point L532(lines 532 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,246 INFO L274 CegarLoopResult]: For program point L1391(lines 1391 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,246 INFO L274 CegarLoopResult]: For program point L1259(lines 1259 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,247 INFO L274 CegarLoopResult]: For program point L202(lines 202 221) no Hoare annotation was computed. [2020-11-29 20:41:38,247 INFO L274 CegarLoopResult]: For program point L136(lines 136 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,247 INFO L274 CegarLoopResult]: For program point L202-2(lines 202 221) no Hoare annotation was computed. [2020-11-29 20:41:38,247 INFO L274 CegarLoopResult]: For program point L863(lines 863 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,247 INFO L274 CegarLoopResult]: For program point L1656-1(lines 1656 1658) no Hoare annotation was computed. [2020-11-29 20:41:38,247 INFO L274 CegarLoopResult]: For program point L1590-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,247 INFO L274 CegarLoopResult]: For program point L1524-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,247 INFO L274 CegarLoopResult]: For program point L1392(lines 1392 1410) no Hoare annotation was computed. [2020-11-29 20:41:38,248 INFO L274 CegarLoopResult]: For program point L1392-2(lines 1392 1410) no Hoare annotation was computed. [2020-11-29 20:41:38,248 INFO L274 CegarLoopResult]: For program point L1260(lines 1260 1282) no Hoare annotation was computed. [2020-11-29 20:41:38,248 INFO L274 CegarLoopResult]: For program point L1260-2(lines 1260 1282) no Hoare annotation was computed. [2020-11-29 20:41:38,248 INFO L274 CegarLoopResult]: For program point L1657(line 1657) no Hoare annotation was computed. [2020-11-29 20:41:38,248 INFO L274 CegarLoopResult]: For program point L1591(line 1591) no Hoare annotation was computed. [2020-11-29 20:41:38,248 INFO L274 CegarLoopResult]: For program point L1525(line 1525) no Hoare annotation was computed. [2020-11-29 20:41:38,248 INFO L274 CegarLoopResult]: For program point L468(lines 468 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,248 INFO L274 CegarLoopResult]: For program point L1130(lines 1130 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,249 INFO L274 CegarLoopResult]: For program point L668(lines 668 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,249 INFO L270 CegarLoopResult]: At program point L1659(lines 64 1660) the Hoare annotation is: (let ((.cse0 (<= ~a11~0 0)) (.cse8 (= 2 ~a3~0)) (.cse7 (= ~a12~0 1)) (.cse6 (<= ~a27~0 0)) (.cse9 (= ~a26~0 ~a12~0)) (.cse5 (<= ~a3~0 0)) (.cse1 (= ~a5~0 1)) (.cse2 (= ~a27~0 1)) (.cse3 (<= ~a12~0 0)) (.cse10 (= ~a11~0 1)) (.cse4 (= ~a3~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 .cse3 .cse5) (and .cse0 .cse1 .cse3 .cse6 .cse4) (and .cse7 .cse0 .cse1 .cse2 .cse5) (and .cse7 .cse0 .cse1 .cse6 .cse8) (and .cse7 .cse0 .cse1 .cse2 .cse8) (and .cse0 .cse1 .cse2 .cse3 .cse8) (and .cse7 .cse0 .cse1 .cse2 .cse9 .cse4) (and .cse7 .cse1 .cse2 .cse10 .cse5) (and .cse7 .cse1 .cse2 .cse8 .cse10) (and .cse7 .cse0 .cse1 .cse6 .cse5) (and .cse7 .cse0 .cse1 .cse6 .cse4) (and .cse1 .cse3 .cse6 .cse10 .cse4) (and .cse7 .cse1 .cse6 .cse8 .cse9 .cse10) (and .cse7 .cse1 .cse2 .cse9 .cse10 .cse4) (and .cse1 .cse2 .cse3 .cse10 .cse5) (and .cse0 .cse1 .cse3 .cse6 .cse5) (and .cse1 .cse3 .cse6 .cse10 .cse5) (and .cse1 .cse2 .cse3 .cse8 .cse10) (and .cse7 .cse1 .cse6 .cse10 .cse4) (and .cse0 .cse1 .cse3 .cse6 .cse8) (and .cse1 .cse3 .cse6 .cse8 .cse10) (and .cse7 .cse1 .cse6 .cse9 .cse10 .cse5) (and .cse1 .cse2 .cse3 .cse10 .cse4))) [2020-11-29 20:41:38,250 INFO L274 CegarLoopResult]: For program point L602(lines 602 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,250 INFO L274 CegarLoopResult]: For program point L1593-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,250 INFO L274 CegarLoopResult]: For program point L1527-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,250 INFO L274 CegarLoopResult]: For program point L1594(line 1594) no Hoare annotation was computed. [2020-11-29 20:41:38,250 INFO L274 CegarLoopResult]: For program point L1528(line 1528) no Hoare annotation was computed. [2020-11-29 20:41:38,250 INFO L274 CegarLoopResult]: For program point L1462(lines 1462 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,250 INFO L274 CegarLoopResult]: For program point L339(lines 339 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,250 INFO L274 CegarLoopResult]: For program point L1331(lines 1331 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,251 INFO L277 CegarLoopResult]: At program point L1662(lines 1662 1679) the Hoare annotation is: true [2020-11-29 20:41:38,251 INFO L274 CegarLoopResult]: For program point L539(lines 539 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,251 INFO L274 CegarLoopResult]: For program point L1596-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,251 INFO L274 CegarLoopResult]: For program point L1530-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,251 INFO L274 CegarLoopResult]: For program point L407(lines 407 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,251 INFO L274 CegarLoopResult]: For program point L275(lines 275 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,251 INFO L274 CegarLoopResult]: For program point L1200(lines 1200 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,251 INFO L274 CegarLoopResult]: For program point L1597(line 1597) no Hoare annotation was computed. [2020-11-29 20:41:38,252 INFO L274 CegarLoopResult]: For program point L1531(line 1531) no Hoare annotation was computed. [2020-11-29 20:41:38,252 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-29 20:41:38,252 INFO L274 CegarLoopResult]: For program point L805(lines 805 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,252 INFO L274 CegarLoopResult]: For program point L145(lines 145 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,252 INFO L274 CegarLoopResult]: For program point L1004(lines 1004 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,252 INFO L274 CegarLoopResult]: For program point L1599-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,252 INFO L274 CegarLoopResult]: For program point L1533-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,252 INFO L274 CegarLoopResult]: For program point L1137(lines 1137 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,253 INFO L274 CegarLoopResult]: For program point L1071(lines 1071 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,253 INFO L274 CegarLoopResult]: For program point L873(lines 873 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,253 INFO L274 CegarLoopResult]: For program point L675(lines 675 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,253 INFO L274 CegarLoopResult]: For program point L1600(line 1600) no Hoare annotation was computed. [2020-11-29 20:41:38,253 INFO L274 CegarLoopResult]: For program point L1534(line 1534) no Hoare annotation was computed. [2020-11-29 20:41:38,253 INFO L274 CegarLoopResult]: For program point L477(lines 477 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,253 INFO L274 CegarLoopResult]: For program point L1336(lines 1336 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,253 INFO L274 CegarLoopResult]: For program point L478(lines 478 488) no Hoare annotation was computed. [2020-11-29 20:41:38,254 INFO L274 CegarLoopResult]: For program point L478-2(lines 478 488) no Hoare annotation was computed. [2020-11-29 20:41:38,254 INFO L274 CegarLoopResult]: For program point L743(lines 743 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,254 INFO L270 CegarLoopResult]: At program point L1668-2(lines 1668 1678) the Hoare annotation is: (let ((.cse0 (<= ~a11~0 0)) (.cse8 (= 2 ~a3~0)) (.cse7 (= ~a12~0 1)) (.cse6 (<= ~a27~0 0)) (.cse9 (= ~a26~0 ~a12~0)) (.cse5 (<= ~a3~0 0)) (.cse1 (= ~a5~0 1)) (.cse2 (= ~a27~0 1)) (.cse3 (<= ~a12~0 0)) (.cse10 (= ~a11~0 1)) (.cse4 (= ~a3~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 .cse3 .cse5) (and .cse0 .cse1 .cse3 .cse6 .cse4) (and .cse7 .cse0 .cse1 .cse2 .cse5) (and .cse7 .cse0 .cse1 .cse6 .cse8) (and .cse7 .cse0 .cse1 .cse2 .cse8) (and .cse0 .cse1 .cse2 .cse3 .cse8) (and .cse7 .cse0 .cse1 .cse2 .cse9 .cse4) (and .cse7 .cse1 .cse2 .cse10 .cse5) (and .cse7 .cse1 .cse2 .cse8 .cse10) (and .cse7 .cse0 .cse1 .cse6 .cse5) (and .cse7 .cse0 .cse1 .cse6 .cse4) (and .cse1 .cse3 .cse6 .cse10 .cse4) (and .cse7 .cse1 .cse6 .cse8 .cse9 .cse10) (and .cse7 .cse1 .cse2 .cse9 .cse10 .cse4) (and .cse1 .cse2 .cse3 .cse10 .cse5) (and .cse0 .cse1 .cse3 .cse6 .cse5) (and .cse1 .cse3 .cse6 .cse10 .cse5) (and .cse1 .cse2 .cse3 .cse8 .cse10) (and .cse7 .cse1 .cse6 .cse10 .cse4) (and .cse0 .cse1 .cse3 .cse6 .cse8) (and .cse1 .cse3 .cse6 .cse8 .cse10) (and .cse7 .cse1 .cse6 .cse9 .cse10 .cse5) (and .cse1 .cse2 .cse3 .cse10 .cse4))) [2020-11-29 20:41:38,254 INFO L274 CegarLoopResult]: For program point L1602-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,254 INFO L274 CegarLoopResult]: For program point L1536-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,255 INFO L274 CegarLoopResult]: For program point L1470(lines 1470 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,255 INFO L274 CegarLoopResult]: For program point L83(lines 83 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,255 INFO L274 CegarLoopResult]: For program point L1603(line 1603) no Hoare annotation was computed. [2020-11-29 20:41:38,255 INFO L274 CegarLoopResult]: For program point L1537(line 1537) no Hoare annotation was computed. [2020-11-29 20:41:38,255 INFO L274 CegarLoopResult]: For program point L613(lines 613 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,255 INFO L274 CegarLoopResult]: For program point L415(lines 415 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,255 INFO L274 CegarLoopResult]: For program point L349(lines 349 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,255 INFO L274 CegarLoopResult]: For program point L1142(lines 1142 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,256 INFO L274 CegarLoopResult]: For program point L1076(lines 1076 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,256 INFO L274 CegarLoopResult]: For program point L878(lines 878 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,256 INFO L274 CegarLoopResult]: For program point L1605-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,256 INFO L274 CegarLoopResult]: For program point L1539-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,256 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 20:41:38,256 INFO L274 CegarLoopResult]: For program point L879(lines 879 897) no Hoare annotation was computed. [2020-11-29 20:41:38,256 INFO L274 CegarLoopResult]: For program point L879-2(lines 879 897) no Hoare annotation was computed. [2020-11-29 20:41:38,257 INFO L274 CegarLoopResult]: For program point L1606(line 1606) no Hoare annotation was computed. [2020-11-29 20:41:38,257 INFO L274 CegarLoopResult]: For program point L549(lines 549 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,257 INFO L274 CegarLoopResult]: For program point L1540(line 1540) no Hoare annotation was computed. [2020-11-29 20:41:38,258 INFO L274 CegarLoopResult]: For program point L1210(lines 1210 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,258 INFO L274 CegarLoopResult]: For program point L814(lines 814 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,258 INFO L274 CegarLoopResult]: For program point L1673(line 1673) no Hoare annotation was computed. [2020-11-29 20:41:38,258 INFO L274 CegarLoopResult]: For program point L286(lines 286 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,258 INFO L274 CegarLoopResult]: For program point L1013(lines 1013 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,258 INFO L274 CegarLoopResult]: For program point L947(lines 947 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,259 INFO L274 CegarLoopResult]: For program point L1608-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,260 INFO L274 CegarLoopResult]: For program point L1542-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,260 INFO L274 CegarLoopResult]: For program point L1476(lines 1476 1478) no Hoare annotation was computed. [2020-11-29 20:41:38,260 INFO L274 CegarLoopResult]: For program point L1476-2(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,261 INFO L274 CegarLoopResult]: For program point L1609(line 1609) no Hoare annotation was computed. [2020-11-29 20:41:38,261 INFO L274 CegarLoopResult]: For program point L1543(line 1543) no Hoare annotation was computed. [2020-11-29 20:41:38,261 INFO L274 CegarLoopResult]: For program point L1477(line 1477) no Hoare annotation was computed. [2020-11-29 20:41:38,261 INFO L274 CegarLoopResult]: For program point L156(lines 156 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,261 INFO L274 CegarLoopResult]: For program point L685(lines 685 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,261 INFO L274 CegarLoopResult]: For program point L1412(lines 1412 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,262 INFO L274 CegarLoopResult]: For program point L1346(lines 1346 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,262 INFO L274 CegarLoopResult]: For program point L223(lines 223 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,262 INFO L274 CegarLoopResult]: For program point L1611-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,264 INFO L274 CegarLoopResult]: For program point L1545-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,264 INFO L274 CegarLoopResult]: For program point L1479-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,264 INFO L274 CegarLoopResult]: For program point L1413(lines 1413 1431) no Hoare annotation was computed. [2020-11-29 20:41:38,264 INFO L274 CegarLoopResult]: For program point L1413-2(lines 1413 1431) no Hoare annotation was computed. [2020-11-29 20:41:38,264 INFO L274 CegarLoopResult]: For program point L92(lines 92 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,264 INFO L274 CegarLoopResult]: For program point L753(lines 753 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,264 INFO L274 CegarLoopResult]: For program point L1612(line 1612) no Hoare annotation was computed. [2020-11-29 20:41:38,264 INFO L274 CegarLoopResult]: For program point L1546(line 1546) no Hoare annotation was computed. [2020-11-29 20:41:38,265 INFO L274 CegarLoopResult]: For program point L1480(line 1480) no Hoare annotation was computed. [2020-11-29 20:41:38,265 INFO L274 CegarLoopResult]: For program point L1084(lines 1084 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,265 INFO L274 CegarLoopResult]: For program point L556(lines 556 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,265 INFO L274 CegarLoopResult]: For program point L490(lines 490 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,265 INFO L274 CegarLoopResult]: For program point L424(lines 424 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,265 INFO L274 CegarLoopResult]: For program point L358(lines 358 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,265 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 20:41:38,265 INFO L274 CegarLoopResult]: For program point L1614-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,265 INFO L274 CegarLoopResult]: For program point L1548-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,266 INFO L274 CegarLoopResult]: For program point L1482-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,266 INFO L274 CegarLoopResult]: For program point L1284(lines 1284 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,266 INFO L274 CegarLoopResult]: For program point L1152(lines 1152 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,266 INFO L274 CegarLoopResult]: For program point L624(lines 624 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,266 INFO L274 CegarLoopResult]: For program point L1615(line 1615) no Hoare annotation was computed. [2020-11-29 20:41:38,266 INFO L274 CegarLoopResult]: For program point L1549(line 1549) no Hoare annotation was computed. [2020-11-29 20:41:38,266 INFO L274 CegarLoopResult]: For program point L1483(line 1483) no Hoare annotation was computed. [2020-11-29 20:41:38,266 INFO L274 CegarLoopResult]: For program point L294(lines 294 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,266 INFO L274 CegarLoopResult]: For program point L1021(lines 1021 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,266 INFO L274 CegarLoopResult]: For program point L823(lines 823 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,266 INFO L274 CegarLoopResult]: For program point L1220(lines 1220 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,266 INFO L274 CegarLoopResult]: For program point L1617-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,266 INFO L274 CegarLoopResult]: For program point L1551-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,266 INFO L274 CegarLoopResult]: For program point L1485-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,266 INFO L274 CegarLoopResult]: For program point L1221(lines 1221 1234) no Hoare annotation was computed. [2020-11-29 20:41:38,266 INFO L274 CegarLoopResult]: For program point L1221-2(lines 1221 1234) no Hoare annotation was computed. [2020-11-29 20:41:38,266 INFO L274 CegarLoopResult]: For program point L957(lines 957 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,267 INFO L274 CegarLoopResult]: For program point L1618(line 1618) no Hoare annotation was computed. [2020-11-29 20:41:38,267 INFO L274 CegarLoopResult]: For program point L1552(line 1552) no Hoare annotation was computed. [2020-11-29 20:41:38,267 INFO L274 CegarLoopResult]: For program point L1486(line 1486) no Hoare annotation was computed. [2020-11-29 20:41:38,267 INFO L274 CegarLoopResult]: For program point L1354(lines 1354 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,267 INFO L274 CegarLoopResult]: For program point L165(lines 165 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,267 INFO L274 CegarLoopResult]: For program point L99(lines 99 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,267 INFO L274 CegarLoopResult]: For program point L694(lines 694 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,267 INFO L274 CegarLoopResult]: For program point L232(lines 232 1475) no Hoare annotation was computed. [2020-11-29 20:41:38,267 INFO L274 CegarLoopResult]: For program point L695(lines 695 709) no Hoare annotation was computed. [2020-11-29 20:41:38,267 INFO L274 CegarLoopResult]: For program point L695-2(lines 695 709) no Hoare annotation was computed. [2020-11-29 20:41:38,267 INFO L274 CegarLoopResult]: For program point L1620-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,267 INFO L274 CegarLoopResult]: For program point L1554-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,267 INFO L274 CegarLoopResult]: For program point L1488-1(lines 64 1660) no Hoare annotation was computed. [2020-11-29 20:41:38,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 08:41:38 BoogieIcfgContainer [2020-11-29 20:41:38,302 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 20:41:38,302 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:41:38,302 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:41:38,303 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:41:38,303 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:41:06" (3/4) ... [2020-11-29 20:41:38,306 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 20:41:38,345 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-29 20:41:38,349 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 20:41:38,353 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 20:41:38,356 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 20:41:38,640 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_42c4ecfc-560a-41cb-9989-ea445537314a/bin/uautomizer/witness.graphml [2020-11-29 20:41:38,641 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:41:38,642 INFO L168 Benchmark]: Toolchain (without parser) took 35939.03 ms. Allocated memory was 102.8 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 72.2 MB in the beginning and 966.1 MB in the end (delta: -893.8 MB). Peak memory consumption was 246.6 MB. Max. memory is 16.1 GB. [2020-11-29 20:41:38,642 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 102.8 MB. Free memory is still 62.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:41:38,643 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1266.05 ms. Allocated memory was 102.8 MB in the beginning and 134.2 MB in the end (delta: 31.5 MB). Free memory was 72.0 MB in the beginning and 88.4 MB in the end (delta: -16.3 MB). Peak memory consumption was 31.3 MB. Max. memory is 16.1 GB. [2020-11-29 20:41:38,643 INFO L168 Benchmark]: Boogie Procedure Inliner took 178.45 ms. Allocated memory is still 134.2 MB. Free memory was 88.4 MB in the beginning and 74.3 MB in the end (delta: 14.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 20:41:38,644 INFO L168 Benchmark]: Boogie Preprocessor took 101.09 ms. Allocated memory is still 134.2 MB. Free memory was 73.6 MB in the beginning and 63.0 MB in the end (delta: 10.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 20:41:38,644 INFO L168 Benchmark]: RCFGBuilder took 2404.84 ms. Allocated memory was 134.2 MB in the beginning and 207.6 MB in the end (delta: 73.4 MB). Free memory was 63.0 MB in the beginning and 143.4 MB in the end (delta: -80.4 MB). Peak memory consumption was 63.3 MB. Max. memory is 16.1 GB. [2020-11-29 20:41:38,645 INFO L168 Benchmark]: TraceAbstraction took 31640.14 ms. Allocated memory was 207.6 MB in the beginning and 1.2 GB in the end (delta: 1.0 GB). Free memory was 143.4 MB in the beginning and 1.0 GB in the end (delta: -860.4 MB). Peak memory consumption was 703.0 MB. Max. memory is 16.1 GB. [2020-11-29 20:41:38,645 INFO L168 Benchmark]: Witness Printer took 338.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 966.1 MB in the end (delta: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. [2020-11-29 20:41:38,647 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 102.8 MB. Free memory is still 62.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1266.05 ms. Allocated memory was 102.8 MB in the beginning and 134.2 MB in the end (delta: 31.5 MB). Free memory was 72.0 MB in the beginning and 88.4 MB in the end (delta: -16.3 MB). Peak memory consumption was 31.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 178.45 ms. Allocated memory is still 134.2 MB. Free memory was 88.4 MB in the beginning and 74.3 MB in the end (delta: 14.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 101.09 ms. Allocated memory is still 134.2 MB. Free memory was 73.6 MB in the beginning and 63.0 MB in the end (delta: 10.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2404.84 ms. Allocated memory was 134.2 MB in the beginning and 207.6 MB in the end (delta: 73.4 MB). Free memory was 63.0 MB in the beginning and 143.4 MB in the end (delta: -80.4 MB). Peak memory consumption was 63.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 31640.14 ms. Allocated memory was 207.6 MB in the beginning and 1.2 GB in the end (delta: 1.0 GB). Free memory was 143.4 MB in the beginning and 1.0 GB in the end (delta: -860.4 MB). Peak memory consumption was 703.0 MB. Max. memory is 16.1 GB. * Witness Printer took 338.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 966.1 MB in the end (delta: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1662]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1668]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((a11 <= 0 && a5 == 1) && a27 == 1) && a12 <= 0) && a3 == 1) || ((((a11 <= 0 && a5 == 1) && a27 == 1) && a12 <= 0) && a3 <= 0)) || ((((a11 <= 0 && a5 == 1) && a12 <= 0) && a27 <= 0) && a3 == 1)) || ((((a12 == 1 && a11 <= 0) && a5 == 1) && a27 == 1) && a3 <= 0)) || ((((a12 == 1 && a11 <= 0) && a5 == 1) && a27 <= 0) && 2 == a3)) || ((((a12 == 1 && a11 <= 0) && a5 == 1) && a27 == 1) && 2 == a3)) || ((((a11 <= 0 && a5 == 1) && a27 == 1) && a12 <= 0) && 2 == a3)) || (((((a12 == 1 && a11 <= 0) && a5 == 1) && a27 == 1) && a26 == a12) && a3 == 1)) || ((((a12 == 1 && a5 == 1) && a27 == 1) && a11 == 1) && a3 <= 0)) || ((((a12 == 1 && a5 == 1) && a27 == 1) && 2 == a3) && a11 == 1)) || ((((a12 == 1 && a11 <= 0) && a5 == 1) && a27 <= 0) && a3 <= 0)) || ((((a12 == 1 && a11 <= 0) && a5 == 1) && a27 <= 0) && a3 == 1)) || ((((a5 == 1 && a12 <= 0) && a27 <= 0) && a11 == 1) && a3 == 1)) || (((((a12 == 1 && a5 == 1) && a27 <= 0) && 2 == a3) && a26 == a12) && a11 == 1)) || (((((a12 == 1 && a5 == 1) && a27 == 1) && a26 == a12) && a11 == 1) && a3 == 1)) || ((((a5 == 1 && a27 == 1) && a12 <= 0) && a11 == 1) && a3 <= 0)) || ((((a11 <= 0 && a5 == 1) && a12 <= 0) && a27 <= 0) && a3 <= 0)) || ((((a5 == 1 && a12 <= 0) && a27 <= 0) && a11 == 1) && a3 <= 0)) || ((((a5 == 1 && a27 == 1) && a12 <= 0) && 2 == a3) && a11 == 1)) || ((((a12 == 1 && a5 == 1) && a27 <= 0) && a11 == 1) && a3 == 1)) || ((((a11 <= 0 && a5 == 1) && a12 <= 0) && a27 <= 0) && 2 == a3)) || ((((a5 == 1 && a12 <= 0) && a27 <= 0) && 2 == a3) && a11 == 1)) || (((((a12 == 1 && a5 == 1) && a27 <= 0) && a26 == a12) && a11 == 1) && a3 <= 0)) || ((((a5 == 1 && a27 == 1) && a12 <= 0) && a11 == 1) && a3 == 1) - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((a11 <= 0 && a5 == 1) && a27 == 1) && a12 <= 0) && a3 == 1) || ((((a11 <= 0 && a5 == 1) && a27 == 1) && a12 <= 0) && a3 <= 0)) || ((((a11 <= 0 && a5 == 1) && a12 <= 0) && a27 <= 0) && a3 == 1)) || ((((a12 == 1 && a11 <= 0) && a5 == 1) && a27 == 1) && a3 <= 0)) || ((((a12 == 1 && a11 <= 0) && a5 == 1) && a27 <= 0) && 2 == a3)) || ((((a12 == 1 && a11 <= 0) && a5 == 1) && a27 == 1) && 2 == a3)) || ((((a11 <= 0 && a5 == 1) && a27 == 1) && a12 <= 0) && 2 == a3)) || (((((a12 == 1 && a11 <= 0) && a5 == 1) && a27 == 1) && a26 == a12) && a3 == 1)) || ((((a12 == 1 && a5 == 1) && a27 == 1) && a11 == 1) && a3 <= 0)) || ((((a12 == 1 && a5 == 1) && a27 == 1) && 2 == a3) && a11 == 1)) || ((((a12 == 1 && a11 <= 0) && a5 == 1) && a27 <= 0) && a3 <= 0)) || ((((a12 == 1 && a11 <= 0) && a5 == 1) && a27 <= 0) && a3 == 1)) || ((((a5 == 1 && a12 <= 0) && a27 <= 0) && a11 == 1) && a3 == 1)) || (((((a12 == 1 && a5 == 1) && a27 <= 0) && 2 == a3) && a26 == a12) && a11 == 1)) || (((((a12 == 1 && a5 == 1) && a27 == 1) && a26 == a12) && a11 == 1) && a3 == 1)) || ((((a5 == 1 && a27 == 1) && a12 <= 0) && a11 == 1) && a3 <= 0)) || ((((a11 <= 0 && a5 == 1) && a12 <= 0) && a27 <= 0) && a3 <= 0)) || ((((a5 == 1 && a12 <= 0) && a27 <= 0) && a11 == 1) && a3 <= 0)) || ((((a5 == 1 && a27 == 1) && a12 <= 0) && 2 == a3) && a11 == 1)) || ((((a12 == 1 && a5 == 1) && a27 <= 0) && a11 == 1) && a3 == 1)) || ((((a11 <= 0 && a5 == 1) && a12 <= 0) && a27 <= 0) && 2 == a3)) || ((((a5 == 1 && a12 <= 0) && a27 <= 0) && 2 == a3) && a11 == 1)) || (((((a12 == 1 && a5 == 1) && a27 <= 0) && a26 == a12) && a11 == 1) && a3 <= 0)) || ((((a5 == 1 && a27 == 1) && a12 <= 0) && a11 == 1) && a3 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 303 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 29.9s, OverallIterations: 15, TraceHistogramMax: 4, AutomataDifference: 20.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2640 SDtfs, 3123 SDslu, 471 SDs, 0 SdLazy, 8748 SolverSat, 1617 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 974 GetRequests, 950 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29711occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.0s AutomataMinimizationTime, 15 MinimizatonAttempts, 8246 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 289 NumberOfFragments, 795 HoareAnnotationTreeSize, 3 FomulaSimplifications, 5822 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 3 FomulaSimplificationsInter, 92 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 4283 NumberOfCodeBlocks, 4283 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 4264 ConstructedInterpolants, 0 QuantifiedInterpolants, 1807218 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1893 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 19 InterpolantComputations, 15 PerfectInterpolantSequences, 1065/1089 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...